Yorkville 3400 Users Manual

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2015-02-03

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SERVICE MANUAL

400

HIGH EFFICIENCY STEREO POWER AMPLIFIER

U.S.A.

Yorkville Sound Inc.

4625 Witmer Industrial Estate

Niagara Falls, New York

14305 USA

Voice: (716) 297-2920

Fax: (716) 297-3689

WORLD HEADQUARTERS

CANADA

Yorkville Sound

550 Granite Court

Pickering, Ontario

L1W-3Y8 CANADA

Voice: (905) 837-8481

Fax: (905) 837-8746

Quality and Innovation Since 1963

Printed in Canada

Manual-Service-AP3400-00-1v6.pdf

AUDIOPRO AP-3400 SERVICE MANUAL

M1012A “THE INPUT BOARD”

The input board processes the audio signal from the input jacks to the voltage amplifier board, (M1011A).

Each channel consists of a balanced gain stage, defeatable bass boost filter, and a preemphasis filter network.

The balanced input, (XLR Jack) and unbalanced input (phone jack) are wired in parallel to the input of a balanced

operational amplifier, (U1). The gain of this stage is 1.6 (4dB) balanced and 1.6 (4dB) unbalanced. Resistors R1, R5

along with capacitors C1 and C2 form a radio interference elimination filter.

Switch S1 selects a flat or bass boosted frequency response. The bass boost filter provides a 20Hz high pass, high Q

filter response with a +4dB peak at 55Hz. The filter consists of a tee network on the input of U1A along with R9, R10,

R11, C5 and C6. The gain is 1 (0dB) in the passband, (above 100Hz).

Operational amplifier U3B is a high pass shelving filter with a +2dB shelf above 20KHz. This filter provides the pre-

emphasis required to obtain a flat frequency response (to 20KHz) on the power amplifier output at full power.

M1011A "VOLTAGE AMPLIFIERS AND SYSTEM CONTROL"

This board contains:

•Voltage amplifiers to drive the current amplifiers on the M1002A boards.

•The front panel volume control circuitry.

•The EMS control system with its associated circuits: Pre clipping and line current sensing heater circuits.

•Clip and activity LED's. Driver circuitry for the amplifier disable relay (used during amplifier turn on, turn off,

thermal shutdown and current limiting).

Circuit Explanation:

Refer to the schematic of M1011A as the sections of the circuit are explained.

The audio signal enters the board from M1012A through connector MS4. The two channels are marked "L" and "R"

for left and right. The signals are to be considered as differential sources and therefore are marked as L+, L-,R+ and

R-. Since the left channel has the same topology as the right channel we will only look at the left channel.

The signal ("L+") at the terminal block (MS4) passes through the front panel level control (P1) and the desired level

enters the inverting input of U1.

Op amp U1 is an inverting amplifier with a set gain of 2.40 (7.6dB). Built around U1 is a dual purpose circuit controlled

by a voltage divider consisting of R15, R16, R17, R18, R19, R20 and R21. The voltage divider sets two reference

levels, (HDRM & CLP). Reference voltage levels vary with the voltage levels on the +/-144VDC supply rails. As the

amplifier?s output is loaded, the supply rails voltage decreases and so do the reference levels.

Transistors Q1, Q3 the surrounding resistors provide a pre-clipping function that tracks the supply rails through the

HDRM voltage reference and clips the audio signal at approximately 11.2V pk. The clip LED indicator circuit is

connected through D1 and D2 to the output of U1, The bases of Q2 and Q4 are connected to the “CLP” reference

voltage, and when the peak output voltage of U1 (+/-Vp) is enough to forward bias the transistor junctions, Q2 or Q4

will trigger the clip led circuit (Q5), and illuminate the clip LED.

The audio signal on the output of U1 enters U3 through R43 and RV1. Under normal operating conditions the gain of

U3 is 1(0dB). The signal then passes through U2 to the voltage amplifier.

The exclamation point within an equilatereal

triangle is intended to alert the user to the

presence of important operating and

maintenance (servicing) instructions in the

literature accompanying the appliance.

Le point d’exclamation à l’intérieur d’un triangle équilatéral

est prévu pour alerter l’utilisateur de la présence

d’instructions importantes dans la littérature accompag-

nant l’appareil en ce qui concerne l’opération et la

maintenance de cet appareil.

This lightning flash with arrowhead symbol,

within an equilateral triangle, is intended to alert

the user to the presence of uninsulated

“dangerous voltage” within the product’s enclosure

that may be of sufficient magnitude to constitute a risk of

electric shock to persons.

Ce symbole d’éclair avec tête de flèche dans un triangle

équilatéral est prévu pour alerter l’utilisateur de la présence

d’un « voltage dangereux » non-isolé à proximité de l’enceinte

du produit qui pourrait être d’ampleur suffisante pour présenter

un risque de choque électrique.

IMPORTANT SAFETY INSTRUCTIONS

safety-4v5.eps • April 3/2007

CAUTION: TO REDUCE THE RISK OF ELECTRIC

SHOCK, DO NOT REMOVE COVER (OR BACK).

NO USER SERVICEABLE PARTS INSIDE.

REFER SERVICING TO QUALIFIED

SERVICE PERSONNEL.

FOLLOW ALL INSTRUCTIONS SUIVEZ TOUTES LES INSTRUCTIONS

Instructions pertaining to a risk of fire,

electric shock, or injury to a person

Read Instructions: The Owner’s Manual should be read and

understood before operation of your unit. Please, save these instruc-

tions for future reference and heed all warnings.

Clean only with dry cloth.

Packaging: Keep the box and packaging materials, in case the unit

needs to be returned for service.

Warning: To reduce the risk or fire or electric shock, do not expose

this apparatus to rain or moisture. Do not use this apparatus near water!

Warning: When using electric products, basic precautions should

always be followed, including the following:

Power Sources

Your unit should be connected to a power source only of the voltage specified in the

owners manual or as marked on the unit. This unit has a polarized plug. Do not use

with an extension cord or receptacle unless the plug can be fully inserted. Precau-

tions should be taken so that the grounding scheme on the unit is not defeated.

Hazards

Do not place this product on an unstable cart, stand, tripod, bracket or table. The

product may fall, causing serious personal injury and serious damage to the product.

Use only with cart, stand, tripod, bracket, or table recommended by the manufacturer

or sold with the product. Follow the manufacturer’s instructions when installing the

product and use mounting accessories recommended by the manufacturer.

The apparatus should not be exposed to dripping or splashing water; no objects

filled with liquids should be placed on the apparatus.

Terminals marked with the “lightning bolt” are hazardous live; the external wiring

connected to these terminals require installation by an instructed person or the use of

ready made leads or cords.

Ensure that proper ventilation is provided around the appliance. Do not install near

any heat sources such as radiators, heat registers, stoves, or other apparatus

(including amplifiers) that produce heat.

No naked flame sources, such as lighted candles, should be placed on the apparatus.

Power Cord

Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug

has two blades with one wider than the other. A grounding type plug has two blades and a

third grounding prong. The wide blade or the third prong are provided for your safety. If the

provided plug does not fit into your outlet, consult an electrician for replacement of the

obsolete outlet. The AC supply cord should be routed so that it is unlikely that it will be

damaged. If the AC supply cord is damaged DO NOT OPERATE THE UNIT.

Unplug this apparatus during lightning storms or when unused for long periods of time.

Service

The unit should be serviced only by qualified service personnel.

AVIS: AFIN DE REDUIRE LES RISQUE DE CHOC

ELECTRIQUE, N’ENLEVEZ PAS LE COUVERT (OU LE

PANNEAU ARRIERE) NE CONTIENT AUCUNE PIECE

REPARABLE PAR L’UTILISATEUR.

CONSULTEZ UN TECHNICIEN QUALIFIE

POUR L’ENTRETIENT

Instructions relatives au risque de feu,

choc électrique, ou blessures aux personnes

Veuillez Lire le Manuel: Il contient des informations qui devraient

êtres comprises avant l’opération de votre appareil. Conservez.

Gardez S.V.P. ces instructions pour consultations ultérieures et

observez tous les avertissements.

Nettoyez seulement avec le tissu sec.

Emballage: Conservez la boite au cas ou l’appareil devait être

retourner pour réparation.

Avertissement: Pour réduire le risque de feu ou la décharge

électrique, n'exposez pas cet appareil à la pluie ou à l'humidité.

N’utilisez pas cet appareil près de l’eau!

Attention: Lors de l’utilisation de produits électrique, assurez-vous

d’adhérer à des précautions de bases incluant celle qui suivent:

Alimentation

L’appareil ne doit être branché qu’à une source d’alimentation correspondant au

voltage spécifié dans le manuel ou tel qu’indiqué sur l’appareil. Cet appareil est

équipé d’une prise d’alimentation polarisée. Ne pas utiliser cet appareil avec un

cordon de raccordement à moins qu’il soit possible d’insérer complètement les trois

lames. Des précautions doivent êtres prises afin d’eviter que le système de mise à la

terre de l’appareil ne soit désengagé.

Risque

Ne pas placer cet appareil sur un chariot, un support, un trépied ou une table instables.

L’appareil pourrait tomber et blesser quelqu’un ou subir des dommages importants.

Utiliser seulement un chariot, un support, un trépied ou une table recommandés par le

fabricant ou vendus avec le produit. Suivre les instructions du fabricant pour installer

l’appareil et utiliser les accessoires recommandés par le fabricant.

Il convient de ne pas placer sur l’appareil de sources de flammes nues, telles que

des bougies allumées.

L’appeil ne doit pas être exposé à des égouttements d’eau ou des éclaboussures

et qu’aucun objet rempli de liquide tel que des vases ne doit être placé sur l’appareil.

Assurez que lappareil est fourni de la propre ventilation. Ne procédez pas à

l’installation près de source de chaleur tels que radiateurs, registre de chaleur, fours

ou autres appareils (incluant les amplificateurs) qui produisent de la chaleur.

Les dispositifs marqués d’une symbole “d’éclair” sont des parties dangereuses

au toucher et que les câblages extérieurs connectés à ces dispositifs de

connection extérieure doivent être effectivés par un opérateur formé ou en utilisant

des cordons déjà préparés.

Cordon d’Alimentation

Ne pas enlever le dispositif de sécurité sur la prise polarisée ou la prise avec tige de

mise à la masse du cordon d’alimentation. Une prise polarisée dispose de deux

lames dont une plus large que l’autre. Une prise avec tige de mise à la masse

dispose de deux lames en plus d’une troisième tige qui connecte à la masse. La

lame plus large ou la tige de mise à la masse est prévu pour votre sécurité. La prise

murale est désuète si elle n’est pas conçue pour accepter ce type de prise avec

dispositif de sécurité. Dans ce cas, contactez un électricien pour faire remplacer la

prise murale. Évitez d’endommager le cordon d’alimentation. N’UTILISEZ PAS

L’APPAREIL si le cordon d’alimentation est endommagé.

Débranchez cet appareil durant les orages ou si inutilisé pendant de longues périodes.

Service

Consultez un technicien qualifié pour l’entretien de votre appareil.

S2125A

VOLTAGE AMPLIFIER:

The voltage amplifier amplifies the audio signal?s voltage from 4.8 volts peak (at the output of U2) to approximently

97v peak which is required to drive the current amplifier board M1002A. M1002A provides the current required for the

97v peak signal to drive 1200 watts into 4 ohms out of the binding posts.

Before the circuit is described in detail here is a quick rundown on the signal?s path through the voltage amplifier

stage. Refer to the schematic of M1011A. Let's consider that a positive going AC signal is present @ test point 3. The

positive going signal will turn on the positive side of the voltage amplifier. The signal at test point 3 turns on Q12

(through R40, D14 and D13). The collector of Q12 pulls down on the base of Q14, turns this transistor on further and

allows a greater current to flow out of Q14?s collector. This increase in current passes through Q15 and it?s collector to

emitter voltage drop decreases. The collector of Q15 now being more positive in voltage turns the base of Q18 on

causing an increase in Q18?s collector current resulting in test point 5 going positive.

As the positive side of the amplifier was turning on the negative side would have been turning off. This is how test

point 5 was able to move positive following the input signal. The reverse would hold true if a negative going signal was

present on the input of the voltage amplifier.

CIRCUIT DESCRIPTION:

The voltage amplifier is a mirrored image with circuitry connected to the positive power supply rail being identical (but

opposite polarity) to the circuitry connected to the negative power supply rail.

For this reason we will look in detail at the positive side of the amplifier.

The audio signal enters the voltage amplifier at test point 3. The signal passes through R40, D14 and D13 to the base

of Q12. Diodes D13 and D14 set up the DC bias on Q12 to approximately 0.6 mA.

The first voltage gain stage consists of Q12 along with the resistor chain on its collector and the emitter resistor (R44).

Transistor Q12 drives the base of Q14 through the resistor chain. A DC current of approximately 6 mA should flow

through the collector of Q14. The voltage drop across Q14 remains constant and is derived from the voltage drop

across the voltage reference Q20, resistor R58, and the base/emitter junction of Q15. This total voltage should equal

approximately 3 VDC. Transistor Q14 is the second gain stage and its output current flows through Q15. Transistor

Q15 is a common base stage with the collector driving the base of output buffer Q18.

Diode D17 is a clamping diode that prevents the maximum peak of the audio signal from coming within 4V of the 144

VDC rail. This is to prevent the output current amplifier (board M1002A) from going into saturation during clipping and

therefore having storage delay problems.

Transistor Q18 buffers the high impedance present on the collector of Q15. The output of the buffer provides a low

output impedance at test point 5 and is current limited to 25mA through the clamping action of D19, D20 and D23.

The signal at TP-5 drives the current amp board M1002A.

DC offset on the amplifier?s output is corrected by operational amplifier U2. The DC offset forms a current through

R54, R14 and is blocked by C5 giving a DC offset correction gain of -1.

The activity L.E.D. function is a simple charge pump circuit with a transistor that redirects a constant current path

through the activity L.E.D.

SHUTDOWN CIRCUIT:

The last circuit on board M1011A is the shutdown relay and its associated drive circuitry. The relay circuit has two

possible operating states.

1. Amplifier on under normal operating conditions.

2. Amplifier power switch has just been turned OFF/ON or the amplfier is in current limit protecting the amplifier?s

output or the amplifier has overheated.

CIRCUIT DESCRIPTION

Here is how the circuit accomplishes these functions. The relay?s normally closed contacts short the output of the

voltage amplifiers to ground when the power switch is off. When the power switch is turned on, the relay remains off

(normally closed) for about 6 seconds. C52 charges to 35V and results in Q37 turning off allowing Q36 to turn on. As

Q36 turns on, it connects the negative terminal of the relay?s coil (Pin 16) to ground energizing the relay and opening

the normally closed contacts.

If prolonged current limiting occurs on the amplifier?s output transistors then D50 or D51 (depending on which channel

is current limiting) will be forward biased turning on Q38 (from its off state). Now +144VDC appears on the collector of

Q38 and through R130 and R128 turn on Q37 therefore turning off Q36 by shorting its base emitter junction. Q36

turning off will turn the relay off and the normally closed contacts (off state) will short the outputs of the voltage

amplifiers to ground so as not to continuously stress the amplifier?s output transistors. A cycle now occurs. With the

voltage amplifiers now disabled there is no signal driving the output transistors (Q14 to Q28) on board M1002A.

The current limit circuit on M1002A turns off and D50 and/or D51 are not forward biased and Q38 turns off. Through

Q37 and Q36 the relay is turned back on and the voltage amplifiers are now active again, driving the output

transistors. If current limiting still occurs, then the same cycle will occur. If the cause of current limiting (low impedance

or short on the speaker output terminals) has been removed, then the amplifier will continue to operate normally.

The third operation that the relay provides is "overheat shutdown". If for some reason the fan cannot keep the

heatsinks in a safe operating temperature area then the fan control circuit (on board M1013A) will deliver through the

"kill" signal line a positive current to turn Q37 on and turn Q36 off to turn off the relay and disable the voltage

amplifiers. When the temperature of the amplifier has been cooled down by the fan, then the kill signal will disappear

and the relay circuit will turn on the relay to resume normal operation. Anytime the relay is in the "protect" mode (due

to the abnormal states) then contact pin 8 of the relay will illuminate LD5 (the protect LED on the front panel).

M1002A “CURRENT AMPLIFIER BOARD”

The current amplifier board (M1002A) receives a high voltage audio signal from voltage amplifier board (M1011A) and

provides the current drive necessary to drive speaker cabinets.

The current amplifier is a two tier complimentary output driver design controlled by a complimentary mos-fet stage.

CIRCUIT DESCRIPTION - REFER TO THE SIMPLIFIED SCHEMATIC #1 ON THE FOLLOWING PAGE

4 5

QUIESCENT CONDITION:

This design is class A/B and therefore the output driver transistors must be forward biased to provide low crossover

distortion. In most class A/B designs, a diode chain or VBE multiplier is used to control the bias voltage and provide a

means of adjusting the bias. This design is different as there isn't a diode chain or VBE multiplier. For simplicity lets

consider only the positive side of the current amplifier, that is all parts between the positive power supply rails and the

audio signal output/input terminals. The negative side is the same as the positive, except for polarity changes.

To bias Q14, greater than 0.5V is needed from base to emitter, (or for simplicity from base to amplifier output). Points

A and B are at the same potential, so consider them to be connected. If this is true then 0.5V from test point 2 to the

amplifier output must appear across R12. There must be some way of developing this voltage across R12, and there

is using the mos-fet (Q5) driver along with local feedback.

Simplified schematic Fig. #1 shows the biasing circuit. The current needed to develop 0.5V across R12 comes from

the source of Q5. When the amplifier is first turned on the current source (Q3) turns on Q5 and current flows through

R12 developing a voltage. When this voltage approaches 0.5V Q1 turns on and robs current from the gate of Q5.

This causes Q5 to turn off until the reduced current flowing through Q5 maintains 0.5V across R12. Q1 will turn off

slightly causing Q5 to increase its source current. The circuit reaches a point of equilibrium with approximately 0.5V

across R12.

Because all output devices are not identical and base emitter voltages vary, some adjustment must be available to

slightly adjust the 0.5V across R12. This is accomplished with RT1. RT1 causes Q1 to turn on slightly more or less

resulting in Q5 turning on slightly more or less and therefore R12? s voltage will be slightly more or less than 0.5v. The

proper quiescent current adjustment is 4mV ( to be measured between test points 8 and 9).

THE SECOND TIER:

Refer to the simplified schematic Fig. #1 while reading the following text. One way of making an amplifier more

efficient is to vary the Power Supply Voltage on the collectors of the output transistors (Q14 & Q22). The lower the

voltage from collector to emitter, the lower the device dissipation. During quiescent conditions, there is 78VDC on the

collectors of output transistors Q14 and Q22. The peak AC voltage that can appear on the amplifier's output is

approximately 132V peak. How can an output transistor deliver a 132V peak when its collector is only at 78VDC? It

can if its collector is pulled up to 144VDC as the output signal's peak rises above 78VDC. (refer to Fig. #2). The

second tier voltage must remain above the amplifier's output voltage by amount Vm. Therefore the circuitry controlling

the second tier voltage must increase the tier voltage before the amplifier's output voltage reaches 78VDC. This

leading voltage is necessary to compensate for time lag of the second tier circuit during fast rising amplifier output

signals.

The voltage between the

amplifier?s output and test point

4 is approximately 14.7VDC

derived from the voltage drop

across ZD3 @ ZD4. We call this

voltage the “floating battery”

because it floats on top of the

output audio signal with point 4

always being 14.7VDC greater

than the peak of the output

signal. Point 4 drives the gate of

mos-fet Q11. Q11 controls the

transistors of the upper tier. As

Q11 turns on it's source foward

biases the base of Q13 and Q13

pulls the collector of Q14

towards the 144 volt rail. The

gate to source voltage needed to

turn on Q11 is approximately 3.5

volts. When the peak output

signal is about 67vp (55v-(14.7v-

3.5v)) then Q11 will start to turn on the second tier. The second tier voltage will remain about 11 volts (Vm) above the

peak of the output signal to the point of clipping where this voltage is reduced to about 4 volts. Zener ZD8 protects the

gate source junction of Q11 and also provides a current path through R29 for the “floating battery”.

Current Limit Protection Circuitry

To have an amplifier drive 3000 watts into practically any combination of speaker cabinets and know what is a safe

load and what is not is a very difficult task. An extensive amount of time was spent on the current limit circuitry so that

it may simulate the safe operating area of the output transistors (SOAR curve). No matter how reactive the load may

be the phase shift that it presents, along with it's resistive component is used to set the output current limit of the

output transistor stage.

Refer to the schematic of board M1002A while reading the following text. The current limit circuitry is a mirrored image

with circuitry connected to the positive power supply rail being identical (but opposite polarity) to the circuitry

connected to the negative power supply rail. For this reason we will look at the positive side of the circuitry.

Transistor Q9 measures the peak current flowing through resistor R53. The voltage across R53 (as a result of the

current flowing through it) is scaled down by R55, R35, R36, R37, D7 and D11- these parts make up the safe

operating area along with the time constants of C26, R34, C12 and R26. Fig. #3 shows a waveform of the current that

passes through R52 and R53 when the output of the amplifier is shorted to ground. This can only be seen by using an

oscilloscope to measure differentially across R52 and R53. The conditions of the measurement are contained on the

diagram. During current limit when Q9 turns on it reduces the voltage across R42. R42 is in series with a 16 volt zener

(ZD7) and is also in parallel with the junction of Q8. Q8 is normally saturated by the current that flows through R20,

ZD7, R42, and R22. When Q9 reduces the voltage across ZD9 and R42 to below 16.6 volts then Q8 turns off allowing

a charge to build up on C8 through resistors R24 and R25. If current limiting occurs for a long enough duration to

allow C8 to charge to 1.2 volts then Q7 will turn on tripping the relay circuit on board M1011A. As soon as the relay is

turned off the audio signal will be turned off at the voltage amplifiers and will remain off for about 5 seconds before the

relay turns on and allows the audio signal to pass through the amplifier. If a current limit condition is still present then

the whole cycle will occur again and repeat until the load conditions on the amplifier's output are safe for the amplifier.

When a safe load reappears the amplifier will automatically reset and drive that load (the speaker cabinet).

Subwoofers present large inductive loads to the amplifier and are driven at low frequencies where the large current

peaks must be tolerated for short periods of time. To accomodate this type of loading C26 and R34 are used to retard

the firing of Q9 at low frequencies.

DC Protection

If a DC voltage greater than 8 volts appears on the output of the amplifier for more than 200 milliseconds then triac

Q30 will turn on holding the output at ground potential. MBS4992 is a device that turns on at either + or - 8 volts DC.

NOTE:

Everytime you replace blown output transistors on a M1002A board

test the DC protection triac with the following circuit.

Conditions of test:

A. Pass a 100Hz 25v peak signal through the M1002A board under test with no load connected to the amplifier

output.

B. Connect points 1 and 2 as shown in the diagram. The amplifier should go into protect mode as the triac ( if

working) shorted the output of the amplifier to ground, and the amplifier goes into current limit.

C. Disconnect the triac test circuit and allow the amplifier to complete it?s protect cycle.

D. Reverse connections 1 to 2 and 2 to 1 and test again. The same results as in B) should be observed if the triac is

working.

Only test the triac for one protect cycle as prolonged testing will heat the triac to a high temperature.

EMS Circuit

The Energy Management System circuit only applies to North American line voltage products. A North American AC

receptacle can provide 1850 watts before the wall breaker would trip, but how can a amplifier provide 2 x 1200 watts

out when only 1850 watts is avaliable out of the AC receptacle? A sinewave source connected to the amplifier driving

the amplfier to full power output will cause the circuit breaker on the amplifier to trip. Music driving the amplfier to

clipping can be equal an average power output between 12 and 30 percent of the amplifier?s maximum capable power

output. Under this condition less than 12 ampheres of current is drawn from the AC line. Some synthesized music

may go beyond the 12 to 30 percent level and make the amplfier draw more than 12 amperes from the AC line. If this

occurs the coil on board M1013A heats up to the point where through the heating of thermistor RV5, Q32 sinks

current through R109. On board M1011A Q11 starts conducting through the connection to R109. Q11 heats

thermistors RV2 and RV4 attenuating the audio signal going to each amplfier channel, thus decreasing the current

drawn from the AC line to the point where less than 12 ampheres is being drawn.

Fan Circuit

Looking at the schematic to

board M1013A, here is a quick

explaination of the fan control

circuit. There is a thermistor on

each M1002A board. When the

amplifier is first turned on, Q33

is saturated sinking the current

source through ZD10. As either

negative temperature coefficient

thermistor begins to heat up,

more current flows through D38

or D39 decreasing the conductor

of Q33 until the increasing VCE

of Q33 is enough to turn on Q34

and Q35. Further heating of the

thermistor causes an increasing

of Q33?s collector to emitter

voltage. Q34 and Q35 are a

common emitter stage with Q35

providing the drive current for the fan. To lower the dissipation of Q35, D42, D43, ZD12, ZD13 and R118 turn off Q35

when the full wave rectified voltage present of the collector of Q35 reaches approximently 50V by robbing current from

the base of Q34. The maximum fan voltage is 20.5 VDC. ZD14 and R120, R121 and R122 provide a current limiting

function. Figure #4 shows the current throught these resistors when there is 12VDC across the fan.

Thermal Shutdown Circuit

Test point 7 in the fan circuit is the measuring point for the shutdown voltage. As the temperature sensing thermistors that

control the fan circuit heat up the voltage on test point 7 rises until at 85 degrees celcius on the M1002A heatsinks the

voltage on test point 7 reaches 34.5 VDC and the amplifier must be shutdown to protect the output power transistors. ZD15

and D47 become forward biased and through the kill connection to board M1011A, Q37 on M1011A turns on turning the

relay off and muting the audio signal. After the amplifier cools down the kill voltage will decrease FIGURE #4 AP3400 Fan

Current Waveform until Q37 turns off turning the relay back on enabling the amplifier.

Identifying Defective Boards in the AP-3400

STEP 1: VISUAL INSPECTION OF FRONT PANEL AND FAN

A. Check to see whether the green power LED is lit. If not, the amplifier has a power supply (M1013A board),

transformer, A.C. switch or line cord problem.

B. If the red protect LED stays on or samples off and on, this usually indicates a problem with one or both of the

M1002A current amplifier modules and possibly damage to the M1011A voltage amplifier board. Check for

misaligned pin connections or see if the ribbon cables have been cut or pinched through their insulation.

C. The fan running at full speed on power up usually indicates a problem with the fan circuitry on the M1013A board,

but it can also be caused by M1011A circuit problems. Erractic fan behaviour can be caused by damaged

thermistors located under the M1002A heatsinks.

D. No output on either or both channels can be caused by intermittent push switches at the input.

STEP 2: VISUAL INSPECTION OF INTERNAL CHASSIS

A. a) After removing the lid, look for any signs of smoke, charring or burnt components. If the M1002A boards have

such damage there may be some damage to the M1011A voltage amp board in the form of blown ICs, or possibly

open or shorted diodes, LED?s, resistors, transistors or capacitors. Exploded electrolytic capacitors indicate you

have major repairs to the M1002A, M1011A and M1013A boards.

STEP 3: POWER UP PROCEDURE WITHOUT M1002A BOARDS

It is extremely important that you never power up an AP3400 with the interconnecting cablesbetween the circuit

boards not connected.

Time and possible further damage will be reduced if you test M1011A and M1002A boards separately. To do this you

must use the M1011A and M1002A test connecters. These are shown in figures #5 and #6. These can be made if the

Molex connector parts are available or order them from the Yorkville Service Parts Dept. With the test connectors

connected to every board, slowly variac up the line AC voltage.

NOTE:

It may be simplier to remove the power supply connections to M1002A boards not being troubleshooted to

reduce the possibility of further damage. With the M1011A test connector connected, a sinewave can be passed

through the board and be seen on test points 5 and 6. With the M1002 Atest connector installed, static DC

measurements can be made. A slight DC offset may be present on the board?s output as there will not be any DC

correcting feedback.

STEP 4: DISMANTLING AND REASSEMBLY PRECAUTIONS

A. When removing power supply wires or resoldering wires to eyelets on the M1011A board, double check that there

are no solder bridges or icicles bridging traces or other eyelets. Failure to do so will result in the destruction of

newly installed boards as well as other boards in the unit. Also make sure wire color codes are correctly oriented

in their proper eyelets, and be careful that ribbon cables don?t get pinched or cut under the M1011A board.

B. When reinstalling M1002A boards, make sure the output wires, i.e. the red and yellow signal and black ground

wires, are not reversed. If either or both channels are reversed, the amp will stay in protect mode with the red

protect LED staying on or sampling on and off.

SPECIFICATIONS

POWER

• All values are in WATTS at 1KHz, except FTC 20Hz-20KHz.

• Measurements made with regulated 120 VAC sine wave at line cord.

• All values are rounded down to the nearest 25 watts

BURST AVERAGE

Measured as a 2 cycle burst at 1KHz, 8:1 duty. (Continuous measurements may require line currents >15 Amps).

ONE CHANNEL DRIVEN (WATTS).

LOAD CONT. AVG. BURST AVG. PEAK INSTANT FTC 20-20KHz

8 ohms 900 1250 3000 800

4 ohms 1500 2250 6000 1200

BOTH CHANNELS DRIVEN (WATTS).

LOAD CONT. AVG. BURST AVG. PEAK INSTANT FTC 20-20KHz

8 ohms 750 1200 3000 650

4 ohms 1200 2175 6000 950

BRIDGED (WATTS)

LOAD CONT. AVG. BURST AVG. PEAK INSTANT FTC 20-20KHz

16 ohms 1500 2400 6000 1300

8 ohms 2400 4350 12000 1900

THD DISTORTION

LOAD AT 1KHz 20Hz - 20KHz

8 ohms <0.003 % <0.04 %

4 ohms <0.004% <0.05 %

CROSSTALK: -75 dB below full power at 1KHz

-60 dB below full power, 20Hz - 20KHz

INPUT IMPEDANCE: 20K ohms balanced, 10 Kohms unbalanced

INPUT SENSITIVITY: 1.4 VRMS sine wave = full power (36 dB gain).

FREQUENCY RESPONSE: Within 1dB, 20Hz to 20KHz (50Hz boost sw out)

HUM AND NOISE: -105 dB below max output RMS voltage, unweighted

DC OFFSET: less than 25 millivolts

PROTECTION: fully protected, DC, LOAD and THERMAL

COOLING: interleaved heatsink with DC servo controlled fan

SLEW RATE: Power amp: 30 V/usec, 60 V/usec in bridged mode

(rise time limited to 18 V/usec by input filter).

DAMPING FACTOR: >500, 20Hz - 400Hz, into 8 ohms

MAX OUTPUT CURRENT: 100 amperes for 10 milliseconds, 50 amperes continuous

TURN ON/OFF: < 15 milliwatts / seconds, 0.5 Wpk (1s on delay).

EFFICIENCY: Better than 75% at full power into 4 ohms

WEIGHT: 42 pounds 17.75 Kilograms

SIZE: 3.5" x 19" x 15.75" (front panel to binding posts)

POWER SUPPLY: Toroidal transformer and combination

power switch/circuit breaker

POWER COMSUMPTION: Will not exceed 13.5 Amps under actual conditions

Identifying Defective Boards in the AP-3000 & AP-3400

Please note: All boards used in the AP-3400 are designated with an `A' suffix (e.g. M1002A) and

use bright red solder mask

STEP 1: VISUAL INSPECTION OF FRONT PANEL AND FAN

a) Check to see whether the green power LED is lit. If not, the amplifier has a power supply (M1013

board), transformer, A.C. switch or line cord problem.

b) If the red protect LED stays on or samples off and on, this usually indicates a problem with one or both

of the M1002 current amplifier modules and possibly damage to the M1012 voltage amplifier board.

Note: Any of the Molex cables from the M1011 circuit board to the M1012 input board as well as the

M1002 current amplifiers can cause the protect LED to stay on or sample on and off. Check for

misaligned pin connections or see if the ribbon cables have been cut or pinched through their insulation.

c) The fan running at full speed on power up usually indicates a problem with the fan circuitry on the

M1013 board, but it can also be caused by M1011 circuit problems. Erratic fan behaviour can be caused

by damaged thermistors located under the M1002 heat sinks.

d) No output on either or both channels can be caused by intermittent push switches at the input.

STEP 2: VISUAL INSPECTION OF INTERNAL CHASSIS

a) After removing the lid, look for any signs of smoke, charring or burnt components. If the M1002

boards have such damage, the M1011, M1012 and M1013 boards may also be damaged even if there is

no similar charring on their components. At the least, there will be some damage to the M1011 voltage

amp board in the form of blown ICs, or possibly open or shorted diodes, LEDs, resistors, transistors or

capacitors. Exploded electrolytic capacitors indicate you have

major

repairs to the M1002, M1011 and

M1013 boards.

STEP 3: POWER UP PROCEDURE WITHOUT M1002 BOARDS

It is

extremely important

that you never power up an AP-3000 or AP-3400 without following the

procedure located on the M1011 schematic highlighted within the box drawn in dashed lines. Failure to do

so will possibly result in damaging a good board. This procedure should only be done on a no load

scoped output to insure the rest of the circuit boards are working before installing new or repaired M1011

modules. The output of a fully operational M1011 will give a 70V peak to peak sinusoidal (undistorted)

wave form when a patch plug is attached at Pin #1. If the wave form is distorted or non- existent, or there

is DC offset, do not attempt to connect any M1002 module to the M1011 or you will immediately destroy

the new or repaired M1002 and will also cause more damage to the rest of the amplifier.

Note: M1002?s

power supply wires (red, yellow, white, blue and black) must be removed as well as the

input Molex ribbon to the M1002 when attempting to power up an M1011.

STEP 4: DISMANTLING AND REASSEMBLY PRECAUTIONS

a) When removing power supply wires or resoldering wires to eyelets on the M1011 board, double check

that there are no solder bridges or icicles bridging traces or other eyelets. Failure to do so will result in the

destruction of newly installed boards as well as other boards in the unit. Also make sure wire color codes

are correctly oriented in their proper eyelets, and be careful that ribbon cables don?t get pinched or cut

under the M1011 boards as this will result in shut down into the protect mode or even destruction of more

boards.

b) When reinstalling M1002 boards, make sure the output wires, i.e. the red and yellow signal and black

ground wires, are not reversed. If either channels or both are reversed, the amp will stay in protect mode

with the red LED staying on or sampling on and off.

AP3400 Parts List 10/28/98

YS # Description Qty. YS # Description Qty. YS # Description Qty.

6410 GREEN 3MM LED 1V7 5MA BULK BRT CLR 3 5621 470U 63V 20%CAP RADIAL ELECT BULK 1 4854 1/4W 1K2 5% T&R RES 2

6411 RED 3MM LED 1V9 5MA BULK BRIGHT 3 5892 6800U 80V 10%CAP RADIAL ELECT BULK 8 4624 1/2W 1K5 5% T&R RES 1

6419 BRIDGE 35A 400V WIRE LEAD GI3504 2 4522 4K7 TRIM POT 2 4824 1/4W 1K5 5% T&R RES 12

6425 BAV21 200V 0A25 DIODE T&R 6 4400 _10K 25A-AUD/DETENT STYLE"P15"16MM 2 4847 1/4W 2K2 5% T&R RES 2

6438 1N4004 400V 1A0 DIODE T&R 10 3590 12.0 AMP SWITCH BREAKER WHITE 1 4804 1/4W 3K 5% T&R RES 8

6825 1N4148 75V 0A45 DIODE T&R 71 3822 500NH COIL 18AWG 0R000 AIR CORE 1 6124 1/4W 3K 5%MINI T&R RES 2

6934 MR854 400V 3A0 DIODE FAST RECOV 24 3820 4UH COIL 14AWG ZOBEL HORIZONTAL 2 4744 5.0W 3K6 5% BLK RES 8

6439 1N5225B 3V0 0W5 ZENER 5% T&R 4 3464 WIRE TO BOARD CRIMP 18-24 AWGT/LEAD 2 4827 1/4W 4K7 5% T&R RES 7

6440 1N750ARL 4V7 0W5 ZENER 5% T&R 5 3465 WIRE TO BOARD CRIMP 16-18 AWG TIN 4 4982 1/4W 4K7 5%MINI T&R RES 4

6459 1N4732A 4V7 1W0 ZENER 5% T&R 2 3486 CLIP 250X032 22-18AWG DISCO-LOK 14 4778 1/4W 5K36 1% T&R RES 2

6461 1N5240BRL 10V0 0W5 ZENER 5% T&R 1 3489 CLIP 250X032 18-22AWG DISCO/INSL 2 4862 1/4W 5K6 5% T&R RES 2

6450 1N5242B 12V0 0W5 ZENER 5% T&R 4 3490 CLIP 250X032 14-16AWG DISCO/INSL 1 4887 1/4W 7K5 5% T&R RES 11

6822 1N4745A 16V0 1W0 ZENER 5% T&R 4 3682 250 MALE PCB TAB BULK ON CATRIGE 14 4990 1/4W 8K2 5%MINI T&R RES 2

6824 1N5246B 16V0 0W5 ZENER 5% T&R 4 3447 DUAL BINDING POST TPP3 2 4800 1/4W 10K0 1% T&R RES 20

6432 1N5248B 18V0 0W5 ZENER 5% T&R 2 3498 M203-02 PLAIN PC MNT JK SKT 2 4829 1/4W 10K 5% T&R RES 2

6465 1N5250B 20V0 0W5 ZENER 5% T&R 4 3660 FEMALE PC MOUNT XLR NTRX.NC3FPR-H-O 2 4775 1/4W 14K0 1% T&R RES 5

6433 1N5257B 33V0 0W5 ZENER 5% T&R 3 3451 0.089 OD SMALL EYELET ELECTROPLATED 18 4630 1/2W 15K 5% T&R RES 10

5101 BC550C TO92 NPN TRANS. T&R 19 3542 SE44 LARGE EYELET TIN-PLATED BRASS 23 4830 1/4W 15K 5% T&R RES 5

5102 BC560C TO92 PNP TRANS. T&R 10 3630 FAN GUARD METAL 80MM CHROME 1 4771 1/4W 17K8 1% T&R RES 11

5103 MPSA06 TO92 NPN TRANS. T&R 1 3860 FAN 80MM X 80MM 40CFM 12VDC 1 6125 1/4W 18K 5%MINI T&R RES 2

5107 2N5551 TO92 NPN TRANS. T&R 5 3692 HEATSINK THERMALOY 6079-PB 5 4885 1/4W 20K 5% T&R RES 4

5113 MPSA42 TO92 NPN TRANS T&R 4 3893 AAVID HEATSINK 5811B 2 4777 1/4W 21K5 1% T&R RES 2

5114 MPSA92 TO92 PNP TRANS T&R 5 3894 AAVID 5972-B H/S W/TAB B.O. 4 4832 1/4W 22K 5% T&R RES 1

6854 2N6517 TO92 NPN TRANS. 2 3501 B52200F006 COMP WASH #4 SMALL 13 4833 1/4W 27K 5% T&R RES 6

5105 MPSA13 TO92 NPN DARLINGTONT&R 1 3750 VINYL CAP SC 0.500 BLACK 1/2" 1 4840 1/4W 33K 5% T&R RES 6

5106 MPSA63 TO92 PNP DARLINGTONT&R 3 3789 TERMINAL STRIP (BEAU INTERCONNECT) 1 4868 1/4W 36K 5% T&R RES 2

5123 NJM431L TO92 SHUNT REG T&R2V 4 3806 RECTANGULAR WASHER FOR TRANS SUPPR

1 4908 1/4W 45K3 1% T&R RES 1

6456 BF872 TO202 PNP TRANS. 1 8682 #4 TEFLON WASHER .125ID .281OD .031 1 4834 1/4W 47K 5% T&R RES 8

6873 MJE340 TO126 NPN TRANS 2 8498 6-32 X 3/8 STEEL PEM STUD 4 4836 1/4W 68K 5% T&R RES 6

6874 MJE350 TO126 PNP TRANS. 2 8499 6-32X1 STEEL PEM STUD 7 4772 1/4W 82K5 1% T&R RES 6

6891 TIP50 TO220 NPN TRANS 2 3795 #8 GROUND LUG ZIERICK 505-169 3 4898 1/4W 91K 5% T&R RES 4

6893 MJE5730 TO220 PNP TRANS 2 3468 8? 3/16 SJT AC LINE CORD STRIP 17" 1 4838 1/4W 100K 5% T&R RES 4

6779 MJH11018 TO218 NPN DARLINGTON 1 3821 HEYCO #1200 STRAIN RELIEF 1 4776 1/4W 113K 1% T&R RES 2

6911 BDX54C TO220 PNP DARLINGTON 1 3521 SIDE ENTRY PCB CONN .156 8POS 1 4839 1/4W 150K 5% T&R RES 4

6912 BDX53C TO220 NPN DARLINGTON 1 3541 24 PIN BREAKAWAY 90 .156 0.333 4668 2.0W 220K 5%10MM BODY T&R RES 2

6752 MTP10N15L TO220 N CHAN MOSFET 2 3543 20 PIN BRKAWAY 90 LOCK .156 0.75 4841 1/4W 220K 5% T&R RES 3

6923 MTP2P50E TO220 P CHAN MOSFET 4 3593 PCB CONN 90 5 CIR .156 3 6126 1/4W 220K 5%MINI T&R RES 4

6924 MTW10N40E TO247 N CHAN MOSFET 2 8701 4-40 KEPS NUT ZINC 17 4843 1/4W 470K 5% T&R RES 4

6925 MTP8P20 O220 P CHAN MOSFET 2 8793 4-40 HEX NUT ZINC 6 6127 1/4W 470K 5%MINI T&R RES 2

6900 YS6900 (22) TO3 NPN TRANS. 16 8760 6-32 KEPS NUT TIN PLATED 64 4844 1/4W 1M 5% T&R RES 1

6927 YS6927 (23) TO3 PNP TRANS. 16 8800 6-32 KEPS NUT ZINC 28 4797 1/4W 1M2 5% T&R RES 1

6840 MC33078P IC DUAL OP AMP 5 8854 6-32 X 1/4 HEX NUT ZINC 6 4888 1/4W 4M7 5% T&R RES 2

6884 NE5532N IC DUAL OP AMP 1 8787 8-32 KEPS NUT ZINC 3 3699 RELAY 2C 01AMP DC48 ???MA PC-S 1

5190 MBS4992 TO92 8V5 DIAC T&R 2 8797 5/16-18 KEPS NUT SJ500 1 3594 9.5" 5C-24AWG RIBBON HEAVY DUT.100" 3

6444 MAC224-4 TO220 40A TRIAC 200V 2 3797 TO-247 THERMO CONDUCTIVE PAD 3 3595 17" 8C-24AWG RIBBON HEAVY DUT.100" 1

6477 100K 5% 1/4W THERMISTOR T&R 0.2 8 3815 TO3 PREGREASED MICA 56-03-2AP 32 8865 4-40 X 5/16 PAN PH MS SJ500 4

5401 _10P 500V 5%CAP T&R RAD CER.2"NPO 4 3846 TO220 MICA THERMAL CONDUCTOR 56359B 8 8742 4-40 X 3/8 PAN PH TAPTITE JS500 4

5404 _27P 100V 10%CAP T&R TUBULAR NPO 2 4597 22AWG STRAN TC WIR 19 8861 4-40 X 3/8 PAN PH MS SJ500 1

5408 _47P 100V 10%CAP T&R BEAD NPO 4 4599 22AWG SOLID SC WIR T&R 79 8741 4-40 X 1/2 PAN PH MS JS500 13

5410 100P 100V 10%CAP T&R BEAD NPO 4 5299 24AWG SOLID SC WIR RAD 43 8871 4-40 X 5/8 PAN PH MS SJ500 2

5412 220P 100V 10%CAP T&R BEAD NPO 2 4745 5.0W 0R1 5% BLK RES 12 8799 #6 X 1/4 PAN PH TYPE B JS500 2

5201 470P 100V 5%CAP T&R RAD CER.2"NPO 2 4749 5.0W 0R15 5% BLK RES 4 8801 6-32 X 3/8 PAN PH TAPTITE SJ500 1

5416 470P 50V 10%CAP T&R BEAD NPO 6 4974 1.0W 0R47 5%FLAME PROOF T&R RES 4 8829 6-32 X 3/8 FLAT PH TAPTITE BO#4 HEA 15

5816 680P 100V 5%CAP T&R RAD CER.2"NPO 2 4677 1/2W 1R 5% T&R RES 4 8747 6-32 X 1/2 HEX ND MS ZINC 16

5422 __1N 50V 10%CAP T&R BEAD NPO 2 4877 1/4W 1R 5% T&R RES 2 8761 6-32 X 1/2 PAN PHIL MS ZINC CLEAR 64

5273 __1N5 200V 5%CAP T&R RAD CER.2"NPO 2 4973 1.0W 1R 5%FLAME PROOF T&R RES 4 8806 6-32 X 1/2 PAN PH TAPTITE SJ500 2

5427 __2N2 500V 10%CAP T&R RAD CER.2" YB 4 4688 1/2W 2R2 5% T&R RES 7 8802 8-32 X 3/8 PAN QUAD TPTTE SJ500 #6H 7

6451 __4N7 250V 20%CAP AC Y ONLY RAD10MM 1 4911 1/4W 2R2 5% T&R RES 8 8749 10-32 X 1/2 QDX PH TAPTITE JS500 6

5272 __6N8 100V 5%CAP T&R RADIAL.2"FILM 2 4748 2.0W 3R9 5% BLK RES 2 8762 10-32 X1/2 TRUSS QUAD TAPTITE JS500 4

5204 _10N 100V 10%CAP T&R RADIAL.2"FILM 2 4733 5.0W 5R6 5% BLK RES 2 8833 10-32 X 7/8 HEX CAP GRD 5 SJ500 4

5834 _10N 250V 20%CAP RAD POLYFILM BULK 2 4610 1/4W 10R 2%FLAME PROOF T&R RES 8 8783 10-32 X 1 PAN QUAD TT JS500 BLACK 10

5210 _22N 100V 10%CAP T&R RADIAL.2"FILM 11 4875 1/4W 10R 5% T&R RES 2 8736 5/16-18X2-3/4 GRD 5 HEX BOLT JS500 1

6435 _22N 275V 20%CAP AC X2 RAD BLK15MM 2 4592 1/8W 15R 2%FLAME PROOF T&R RES 1 3433 0.080 SPACER OD.700 ID.330 PLASTIC 2

5224 _47N 100V 10%CAP T&R RADIAL.2"FILM 2 4591 1/8W 22R1 1%FLAME PROOF T&R RES 2 8663 11/64 NYLON SPACER (MICRO PLASTIC) 66

5226 _68N 100V 5%CAP T&R RADIAL.2"FILM 2 4607 1/8W 39R 2%FLAME PROOF T&R RES 8 8629 10-32 X 1/4 SPACER PHENOLIC 16

5228 100N 100V 5%CAP T&R RADIAL.2"FILM 4 4899 1/4W 39R 5% T&R RES 8 3741 .5 SPACER ID-.171 OD-.25 #912-500 2

5314 100N 50V 10%CAP T&R BEAD X7R 9 4817 1/4W 47R 5% T&R RES 6 3743 SNAP ON 0.5" SPACER RICHCO 3

5229 150N 63V 10%CAP T&R RADIAL.2"FILM 2 6134 1/4W 47R 5%MINI T&R RES 4 8679 6-32 X 1/4 X 1.75 NYLON SPACER(HEX) 1

5882 220N 250V 10%CAP RAD POLYFILM BULK 6 4811 1/4W 68R 5% T&R RES 2 8667 SHOULDER WASHER SWS-229 LENGTH 1/8 9

5234 470N 63V 10%CAP T&R RADIAL.2"FILM 2 4593 1/8W 150R 2%FLAME PROOF T&R RES 4 8818 3/4 OD X 5/16 ID X .08 THICK WASHER 1

5255 __1U 63V 20%CAP T&R RADIAL ELE.2" 2 4859 1/4W 150R 5% T&R RES 4 3511 #6 FLAT WASHER NYLON 2

5257 __2U2 63V 20%CAP T&R RADIAL ELE.2" 4 4645 1/8W 220R0 1%FLAME PROOF T&R RES 4 8485 #6 SPLIT WASHER ZINC 6

5259 __4U7 63V 20%CAP T&R RADIAL ELE.2" 5 4857 1/4W 220R 5% T&R RES 3 8491 #10 SPLIT LOCK WASHER BO 10

5281 _10U 16V 20%CAP NONPOLAR T&R .2" 6 4770 1/4W 249R 1% T&R RES 12 8817 #10 FLAT WASHER BLACK OXIDE 8

5629 _10U 160V 20%CAP RADIAL ELECT BULK 4 4867 1/4W 270R 5% T&R RES 7 8850 #10 INT TOOTH LOCKWASHER BO 4

5260 _22U 50V 20%CAP T&R RADIAL ELE.2" 12 4855 1/4W 330R 5% T&R RES 3 8873 1.250ODX5/16ID FENDER WASHER BARE 1

5627 _47U 10V 20%CAP NONPOLAR RAD BULK 2 4821 1/4W 470R 5% T&R RES 10 3436 DPDT PUSH SW PCMT H BREAK B4 MAKE 2

5267 100U 25V 20%CAP T&R RADIAL ELE.2" 2 4822 1/4W 820R 5% T&R RES 2 3422 THERMO/BRKR:N/CLOSED OPEN@60C 1

5619 330U 100V 20%CAP RADIAL ELECT BULK 4 4609 1/8W 1K 2%FLAME PROOF T&R RES 4 1288 AP-3400 T?RD 1

5630 330U 25V 20%CAP RADIAL ELECT BULK 6 4823 1/4W 1K 5% T&R RES 17

220R0

R51

6800u

80V

C22

6800u

80V

C23 T5

6800u

80V

C24

6800u

80V

C25

T10

T6 T2

249R:1%

BC550

BC560

2R2

150R

R15

4K7

R10

4K7

LIN

RT1

470p

15K

249R:1%

R19

15K

R16

FLMPRF

39R

R12

FLMPRF

39R

R14

MTW10N40E

MTP10N15L

Q11

FLMPRF

22R1

R11

36K

R13

10K:1%

39R

249R:1%

R17 10K:1%

R18

22u

10v

22u

10v

C5 1W

16v

ZD9

16v

ZD8

68R

150v

1n5

91K

R36

27K

R37

FLMPRF

0.5W

R33

3K6

R29A

27K

R38

91K

R39 0R15

R52

0R15

R53

YS#6927

Q22

YS#6900

Q13

0R1

R57

0R1

R56

YS#6927

Q24

YS#6900

Q15

0R1

R59

0R1

R58

YS#6927

Q26

YS#6900

Q17

0R1

R61

0R1

R60

YS#6927

Q28

YS#6900

Q19

YS#6900

Q14

D11 BAV21

YS#6900

Q16

D10 BAV21

YS#6900

Q18

270R

R34

YS#6900

Q20

270R

R50

YS#6927

Q21

MR854

D15

YS#6927

Q23

MR854

D14

YS#6927

Q25

MR854

D13

YS#6927

Q27

MR854

D12

16v 22n

C26

MTP8P20

Q12

MTP2P50E

Q6A

R40

12V0

500mW

ZD4

3V0

500mW

ZD3

12V0

500mW

ZD5

3V0

500mW

ZD6

330u

16v

330u

16v

300V 2n2

C15

R46

3K6

R29

3K6

R45

1K2

R30

300V 2n2

MR854

D21

500mW

16v

ZD1

100v 680p

C10

47R

R31

100v 470p

C16

39R

R47

MR854

D19

MR854

D18

R35

MR854

D17

220R0

R55

MTP2P50E

Q6B

3K6

BC550

BC560

Q10

2R2

R27

2R2

R41

MR854

D16

MT1

MT2

MBS4992

470R

R26

470R

R43

16v 22n

C12

16v 22n

C13

R20

R22

500mW

16v

ZD2

4K7

R42

BC550

220K

R25

220K

R24

2u2

10v

4K7

R23

350V

2N6517

2K2

R21

100K

RV1

MT1

MT2

GTRIAC_MAC224

Q30

4uH

20K

R35A

16v

10u C21

820R

10R

R65

5R6

R63

MR854

D22

39R

R32

39R

R48

0.5W

R28

0.5W

R44

160V 220n

C11

160V 220n

C14

2OK

R40A

3R9

R62

150v

10n

C19

BP1 BP2

18V

500mW

ZD7

MR854

D20

EY1

MR854

D23

EY2

15K

0.5W

R69 15K

0.5W

R68

15K

0.5W

R66 15K

0.5W

R67

18K

R70

16v 22n

C27

47R

R71

47R

R72

MTP8P20

MTP10N12L

SDG

MTP2P45

MTP245

ECB

MTW10N40E

ECB

VIEW

BOTTOM

MJ15023

MJ15022 MAC224

MT2

MT1

EBC

2N5517 MBS4992

MT1

MT2

EY6

2R2

0.5W

R49B

470K

R78

470K

R77

10n

C18

150K

R74

100K

R73

MPSA92

Q31

1N4004

D26

1N4004

D24 100N

C17

MPSA42

Q34

D25

150K

R75

BC550

Q32 2N5551

Q33

8K2

R76

D28

D27

2R2

0.5W

R49A

# DESCRIPTION OF CHANGEVER#DATE

MODEL(S):-

MAR/12/98

JAN/14/98

DEC/09/97

2.20

2.10

2.00

PC#5656_R49,R79->0R47/1W_ZD7->18V

ADD_R79,R80

PC#5551_ADD_R79,ZD10_ACROSS_R11

R11,R12,R14,R33,->FLAMEPROOF

C26,C27_10u->22N_R52,R53_0R1->0R15

R37,R38_10K->27K_R34,R50_249R->270R

R35A_470R->20K_R36,R39_27K->91K

PC#5546_R55,R51 249R->220R0_R40A,

AP-3400

M1002A.SCH_DATABASE_HISTORY

0R47

R79

MPSA92

EBC

MPSA42

4V7

ZD10

17K8:1%

R56B

0R47

R49

33K

R64

MPSA06

EBC

2N5551

RED

LD1

47p

10K:1%

R14

10K:1%

R13

1/2

33078

1u 16v

100K

RV2

100K

RV1

BC550

330R

R36

MS4

1/2

33078

BF872

Q11

220K

R10

100n

2u216v C5

1/2

33078

A63

270R

R17

113K0:1%

R16

10k:1%

R20

113K0:1%

R15

27p

C32

BC560

10K:1%

R45

1/2

33078

17K8:1%

5K36:1%

10K:1%

R44

1u16v C10

10K:1%

R40

10K:1%

R42

82K5:1%

R43

82K5:1%

R38

82K5:1%

R41

82K5:1%

R39

16v

10u

C28

16v

10u C25

27p

C31

220p

C27 220p

C23

MW2

MW1

GREEN

LD6

270R

R18

10K:1%

R21

47K

BC550

47K

45K3:1%

R19

EY14

EY11

EY7

EY4

EY1

S1 S2

C2 RELAY

RELAY

MW3

2u216v C14

MW3

33K

R69A

220K

R60A 220K

0.5W

R60B

BDX53C

Q30

BDX54C

Q31

20v

500mW

ZD8

20v

500mW

ZD7

15K

0.5W

R102

15K

0.5W

R103

R105

EY2

R104

249R:1%

R35 100u

25v

C48

100u

25v

C49

68K

R70A

10K

R130

EY5

68K

R68A

NJM431L

321

33K

R67B

150R

R57A

1K5

0.5W

R124

D46

68K

R68B

EY17

16v

10u

C16

16v

10u C15

330u

16v

C29A

270R

R125

330u

16v

C29B

L_LEVEL

25A

10K

100n

C26

EY8 EY9

R_LEVEL

25A

10K

1N4004

D48

47K

R28

BC550

47K

R27

R29

R26

R24

5K36:1%

R22

17K8:1%

R25

1/2

33078

BC560

10V

500mW

ZD17

A63

Q10

D10

10u

160V

C27A

100n

C13

220K

R31

BC550

R23

47p

C11

47p

C12

RED

LD2

820R

R30

10u

160V

C28A

100K

RV3

100K

RV4

1/2

33078

10K:1%

R33

10K:1%

R34

249R:1%

R12

15R

R37

249R:1%

R32

249R:1%

R11

D12

2N5551

Q36

BC550

Q37

MPSA92

Q38

100n

C29

47R

R61B

10K

R126

4K7

R127 1M

R129

EY10

220K

R128

EY12

4u7 63v

C52

D11

D5 16v

47u

10v

47u

C17

1K5

R131 1K5

R132

D50 D51

47R

R62B

MJE350

Q19B

MJE340

Q18B

EY15 EY16

EY13

4u7

10v

C25B

39R

R63B

39R

R58B

4u7

10v

C26B

EY6

D22B

D23B

EY3

YORKVILLE

NAME: PCB#&VER:

MODELS: SCH ISSUE:

TITLE:

DATE:

M1002A/M1011A/M1012A/M1013A

POWER_AMP

AP-3400

AP3400

AUG/17/98

AP3400

1.00

250v220n

C42

22u

16v

C18A

22u

16v

C19A

220R

R40A

D14A

D13A

D15A

D16A

22n16v C20B

7K5

R39A

7K5

R41A

MPSA42

Q12A

MPSA92

Q13A

7K5

R38A

7K5

R42A

R44A

R45A

4K7

R46A

1K5

R47A

1K5

R48A

470R

R49A

4K7

R50A

1K5

R51A

1K5

R52A

470R

R53A

R43A

17K8:1%

R56A

BC560

Q14A

BC550

Q17A

150R

R64A

22u 10v

C21A

22u10v C24A

D17A

D18A

MJE5730

Q15A

MJE2361T

Q16A

D19A

D20A

D21A

21K5:1%

R55A

47K

R54A

10p

300V

C23A

D23A

D22A

4u7

10v

C26A

39R

R58A

39R

R63A

4u7

10v

C25A

MJE340

Q18A

MJE350

Q19A

47R

R62A

47R

R61A

10p

300V

C22A

RED

LD5

10p

300V

C23B

47K

R54B

EY7

D21B

D20B

D19B

MJE2361T

Q16B

MJE5730

Q15B

D18B

D17B

22u10v C24B

22u 10v

C21B

NJM431 2V5

Q20A

# DESCRIPTION OF CHANGEVER#DATE

MODEL(S):-

APR/08/97

DEC/02/94

JUN/22/94

2.50

2.40

2.30

PC#5353_R60A_1/2W_220K->2W_220K

Q20A/B_Q21A/B

PC#4651_DEL_LD9->LD14_ADD_NJM431L

PC#4529_BD651->BDX53C_BD652->BDX54C

AP-3400

M1011A.SCH_DATABASE_HISTORY

BC550

Q17B

BC560

Q14B

WC3

R43B

470R

R53B

1K5

R52B

1K5

R51B

4K7

R50B

470R

R49B

1K5

R48B

1K5

R47B

4K7

R46B

R45B

R44B

7K5

R42B

7K5

R38B

MPSA92

Q13B

MPSA42

Q12B

7K5

R41B

7K5

R39B

10p

300V

C22B

D16B

D15B

D13B

D14B

220R

R40B

22u

16v

C19B

22u

16v

C18B

10u

160V

C28B

10u

160V

C27B

NJM431 2V5

Q21B

150R

R64B

150R

R57B

10R

R59B

NJM431 2V5

Q21A

NJM431 2V5

Q20B

33K

R67A

10R

R66B

68K

R70B

33K

R69B

BC560C

EBC

BC550C

MJE2361T

MJE5730

ECB

MPSA92

CBE

MPSA42 MPSA63

CBE

MPSA13

A13

Q29

A63

Q28

GREEN

LD3

470K

R101 470K

R97

GREEN

LD4

330R

R98

500mW

4v7

ZD1 500mW

4v7

ZD2

BAV21

D35

BAV21

D36

100K

R96 100K

R100

250v220n

C43

330R

R99

22n16v C20A

5 6

MJE350

BCE

MJE340

10R

R65B

1N4004

D49

22n

CSA

C54

BF872

ECB

BDX53C

BDX54C

ECB

10R

R66A

100n

10R

R59A

10R

R65A

10R

R107

10R

R106

21K5:1%

R55B

MC1

40CFM

FAN

22n

CSA

C54

MC1

D47

7K5

R123

33v

500mW

ZD15

27K

R116

MC1

WC8

WC6

WC4

WC7

EY7

EY6

EY3

EY5

EY10

WC11

WC1

R124

D48

EY13 EY14

D37

D46

22nCSA C53

4n7

CSA

C55

EY4

EY2

EY11

D41

4v7

500mW

ZD10

2R2

0.5W

R122

D40

MJH11018

Q35

EY8

1N4004

D45

470u25v C51

1N4004

D44

25v

22n

C50

A06

Q33

4v7

500mW

ZD11

68K

R113 68K

R112

D39

D38

22K

R118

1.2M

R114 33V

500mW

ZD12

33V

500mW

ZD13

1N4004

D43 1N4004

D42

15K

R117

220R

R119

2N5551

Q34

47K

R108

2R2

0.5W

R121

47K

R109

17K8:1%

R111

14K0:1%

R110

2N5551

Q32

100K

RV6

100K

RV5

13A/85C

TB2

12A/SW

TB1

MJH11018

ECB

2R2

0.5W

R120

# DESCRIPTION OF CHANGEVER#DATE

MODEL(S):-

AUG/12/97

1.40

PC#5444_R120->122_1/4W->1/2W

AP3400

M1013A.SCH_DATABASE_HISTORY

WC10

EY12

EY9

330u

80V

C47

330u

80V

C46

330u

80V

C45

330u

80V

C44

13AMP

DB2

13AMP

DB1

YSL#1288

120VAC

1KVA

TYPE_H

TR1

4v7

500mW

ZD14

27K

R115

1/2

5532

4M7

R14

16v 470n

OUT

1/2

5532

17K8:1%

R15

16v 150n

16v 47n

16v

100n

16v 68n

SRT

CH_B_IN

NO_GOLD

JB2 1

NUTRIX

BAL_IN

JB1

1/2

33078

10K:1%

14K0:1%

470p

100p

EY2

WC1

5K6

R12

R4 7K5

R13

1/2

33078

17K8:1%

R11

17K8:1%

R10

10K:1%

82K5:1%

R17

82K5:1%

R35

10K:1%

R27

17K8:1%

R28

17K8:1%

R29

1/2

33078

7K5

R31

R26 5K6

R30

100p

C14

100p

C13

470p

C12

470p

C11

14K0:1%

R22

14K0:1%

R25

10K:1%

R24

R23

10K:1%

R21

R20

1/2

33078

NUTRIX

BAL_IN

JB4

SRT

CH_A_IN

NO_GOLD

JB3 1

16v 68n

C15

16v

100n

C16 16v 47n

C18 16v 150n

C19

17K8:1%

R33

470R

R16

OUT

16v 470n

C17

4M7

R32 470R

R34

100n

C23

100n

C24

100n

C21

100n

C22

1K5

R18

1K5

R36

16v

6n8

C10

16v

6n8

C20

OUT

EY3

EY5

EY10

WC11

22nCSA C53

4n7

CSA

C55

EY4

EY2

EY11

EY8

AC LINE FILTER

BLU

GRN/YEL

BRN

13A/85C

TB2

8A/SW

TB1

WC10

EY12

EY9

YSL#1288E

220/240VAC

TR1

RCLIM

RTSENSE

RDRV

-F15

+145

+145 +145

+145

+145 +145

+145

-145

-145 -145

-145

-78

-78 -78

-78

+78 +78

+78

+78 +78

+78

+F15

GND

GND GND

GND

GNDGND

GND

RFB

L-

ROG

LCLIM

LTSENSE

R-

L+

R+

HDRM+

CLP+

CLP-

HDRM-

+18

+18 +18

+18

ACTGND

KILL

RMS

-18

-18 -18

-18

LOG

LDRV

LFB

WHITE

BLACK

CHASSIS

SIG_R

SIG_L

BLUE

BROWN

FP=FLAMEPROOF

GRN/YEL

GREEN

RDRV

RTSENSE

EY3 FOR 245V

EY3 FOR 230V

230V

245V

CE AC WIRING

GREEN WIRE TO

ORANGE WIRE TO

220/240 VAC 50 Hz LINE

BRN

GRN

ORN

TO WC1 ON M1012

UNDER CAP:

WHITE

BLUE

YELLOW

RED

GREY

STRAP

GROUND

18Ga BLACK WIRE

REF_L

REF_R

LEFT = CHAN A

RIGHT = CHAN B

GROUND STRAP:

GREEN WIRE TO

TO M1011 GND

+2dB

IN = MONO

MUST BE BREAK BEFORE MAKE, #3436

20KHz

TO PIN 4 OF 5532

-1dB 30Hz

+4dB 55Hz

FILTER

TO WC1 ON M1012

BLUE

WHITE

BLACK

YELLOW

RED

UNDER CAP:

BLK

WHITE

BLUE

YELLOW

RED

GREY

120 VAC 60 Hz LINE

STRAP

GROUND

RMS IN

AMBIENT

3 CATHODE

2 ANODE

1 REF

33078 BYPASS:

48V VERSION

300 VOLTS ARE PRESENT

ON THIS CIRCUIT BOARD.

SERVICE CAUTION: VOLTAGES GREATER THAN

LEFT ACTIVITY

RIGHT ACTIVITY

RDRV (LDRV) IS LIMITED TO 75 mA.

THE MAXIMUM CURRENT AVAILABLE FROM

EXTRA BRIGHT LEDS!

(LOG AND ROG MUST BE GROUNDED TO THE HIGH CURRENT INTERFACE GROUND)

THE FOLLOWING PATCH PLUGS FOR MW1 AND MW2 SHOULD BE ASSEMBLED.

AND THE HI-TEMP SHUT DOWN

THE OPERATION OF THE FAN

RTSENSE OR LTSENSE.

MAY BE VERIFIED BY GROUNDING

(REQUIRED FOR OPERATION)

INTERFACE:

CONTROL

TO TEST THIS PCB WITHOUT POWER OUTPUT MODULES CONNECTED,

INTERFACE

HIGH CURRENT

GND AT

1: LDRV

2: LOG

3: LCLIM

4: LFB

5: LTSENSE

TO AMP A AND AMP B.

FROM M1013 BRIDGE RECT PCB,

HIGH CURRENT INTERFACE:

FIXTURE PLUG.

NOTE ABOUT TEST

AMP MODULES. SEE

WITHOUT THE POWER

BE OPERATED

THIS BOARD MAY

TO AMP A (LEFT)

TO AMP B (RIGHT)

PCB:

FROM INPUT

OVERHEAT SHUTDOWN

TO ACTIVITY LEDS.

POWER

PROTECT

ISOTHERMAL

RTSENSE

RDRV

WARNING: 300 VDC IS BETWEEN THE POWER SUPPLIES. THIS PRESENTS A SIGNIFICANT SHOCK HAZARD. PLEASE, USE EXTREME CAUTION WHEN SERVICING!

Q1 AND Q2 MUST BE

4v ACROSS R17

4v ACROSS R5

ADJUST FOR 3 TO 5 MILLIVOLTS

OUTPUTS

TO Q14 AND Q22

TRACKING!

FOR PROPER THERMAL

THERMALLY COUPLED

NOTE:

THE MINIMUM REQUIRED FOR PROPER OPERATION.

NOTE THAT THE CAPACITOR VOLTAGES SHOWN ARE

ALL UNMARKED DIODES ARE 1N4148.

ACTUAL VOLTAGE RATINGS MAY BE HIGHER.

IDLE CURRENT:

BETWEEN TESTPOINTS 8 & 9

ROG

10.7v

5 WATTS

ABOUT

SENSOR:

530uA

220uA

IDLE

15.6v

13.5v

13 A = 15K

11 A = 33K

AT 25~ AMBIENT:

28v @ 80~

10K @ 80~

25K @ 55~

50K @ 40~

100K @ 25~

9.59.85 1.6 WATTS

Iled=20mA

300mV/47K

HARD LIMIT @ 11.2 Vp

6.4 uA ->

HDRM - CLP = 300mV

16mA

TO HEATSINK

ISOTHERMAL 4 WATTS

75mA IDLE

820R

RED

LD1

47p

10K:1%

R14

10K:1%

R13

1/2

33078

1u 16v

100K

RV2

100K

RV1

BC550

330R

R36

MS4

1/2

33078

BF872

Q11

220K

R10

100n

2u216v

1/2

33078

A63

270R

R17

113K0:1%

R16

10k:1%

R20

113K0:1%

R15

27p

C32

BC560

10K:1%

R45

1/2

33078

17K8:1%

5K36:1%

10K:1%

R44

1u16v

C10

10K:1%

R40

10K:1%

R42

82K5:1%

R43

82K5:1%

R38

82K5:1%

R41

82K5:1%

R39

16v

10u

C28

16v

10u C25

27p

C31

220p

C27 220p

C23

MW2

MW1

GREEN

LD6

270R

R18

10K:1%

R21

47K

BC550

47K

45K3:1%

R19

EY14

EY11

EY7

EY4

EY1

S1 S2

C2 RELAY

RELAY

8 9

MW3

2u2

16v

C14

MW3

33K

R69A

220K

R60A

220K

0.5W

R60B

BDX53C

Q30

BDX54C

Q31

20v

500mW

ZD8

20v

500mW

ZD7

15K

0.5W

R102

15K

0.5W

R103

R105

EY2

R104

249R:1%

R35

100u

25v

C48

100u

25v

C49

68K

R70A

10K

R130

EY5

68K

R68A

NJM431L

33K

R67B

150R

R57A

1K5

0.5W

R124

D46

68K

R68B

EY17

16v

10u

C16

16v

10u C15

330u

16v

C29A

270R

R125

330u

16v

C29B

L_LEVEL

25A

10K

100n

C26

EY8 EY9

R_LEVEL

25A

10K

1N4004

D48

47K

R28

BC550

47K

R27

R29

R26

R24

5K36:1%

R22

17K8:1%

R25

1/2

33078

BC560

10V

500mW

ZD17

A63

Q10

D10

10u

160V

C27A

100n

C13

220K

R31

BC550

R23

47p

C11

47p

C12

RED

LD2

820R

R30

10u

160V

C28A

100K

RV3

100K

RV4

1/2

33078

10K:1%

R33

10K:1%

R34

249R:1%

R12

15R

R37

249R:1%

R32

249R:1%

R11

D12

2N5551

Q36

BC550

Q37

MPSA92

Q38

100n

C29

47R

R61B

10K

R126

4K7

R127

R129

EY10

220K

R128

EY12

4u7 63v

C52

D11

D5 16v

47u

10v

47u

C17

1K5

R131

1K5

R132

D50 D51

47R

R62B

MJE350

Q19B

MJE340

Q18B

EY15

EY16

EY13

4u7

10v

C25B

39R

R63B

39R

R58B

4u7

10v

C26B

EY6

D22B

D23B

EY3

PCB#:

YORKVILLE

NAME:

TITLE:

DATE:

M1011A

AP-3400

M1011A26

AUG/05/98

SCH_NAME

2.60

250v

220n

C42

22u

16v

C18A

22u

16v

C19A

220R

R40A

D14A

D13A

D15A

D16A

22n

16v

C20B

7K5

R39A

7K5

R41A

MPSA42

Q12A

MPSA92

Q13A

7K5

R38A

7K5

R42A

R44A

R45A

4K7

R46A

1K5

R47A

1K5

R48A

470R

R49A

4K7

R50A

1K5

R51A

1K5

R52A

470R

R53A

R43A

17K8:1%

R56A

BC560

Q14A

BC550

Q17A

150R

R64A

22u 10v

C21A

22u

10v

C24A

D17A

D18A

MJE5730

Q15A

TIP50

Q16A

D19A

D20A

D21A

21K5:1%

R55A

47K

R54A

10p

300V

C23A

D23A

D22A

4u7

10v

C26A

39R

R58A

39R

R63A

4u7

10v

C25A

MJE340

Q18A

MJE350

Q19A

47R

R62A

47R

R61A

10p

300V

C22A

RED

LD5

10p

300V

C23B

47K

R54B

21K5:1%

R55B

D21B

D20B

D19B

TIP50

Q16B

MJE5730

Q15B

D18B

D17B

22u

10v

C24B

22u 10v

C21B

NJM431 2V5

Q20A

# DESCRIPTION OF CHANGE

VER#

DATE

MODEL(S):-

APR/08/97

DEC/02/94

JUN/22/94

2.50

2.40

2.30

PC#5353_R60A_1/2W_220K->2W_220K

AUG/05/98 2.60 PC#5528_Q16 A,B REPLACE WITH TIP50#6891

Q20A/B_Q21A/B

PC#4651_DEL_LD9->LD14_ADD_NJM431L

PC#4529_BD651->BDX53C_BD652->BDX54C

AP-3400

M1011A.SCH_DATABASE_HISTORY

BC550

Q17B

BC560

Q14B

17K8:1%

R56B

R43B

470R

R53B

1K5

R52B

1K5

R51B

4K7

R50B

470R

R49B

1K5

R48B

1K5

R47B

4K7

R46B

R45B

R44B

7K5

R42B

7K5

R38B

MPSA92

Q13B

MPSA42

Q12B

7K5

R41B

7K5

R39B

10p

300V

C22B

D16B

D15B

D13B

D14B

220R

R40B

22u

16v

C19B

22u

16v

C18B

10u

160V

C28B

10u

160V

C27B

NJM431 2V5

Q21B

150R

R64B

150R

R57B

10R

R59B

NJM431 2V5

Q21A

NJM431 2V5

Q20B

33K

R67A

10R

R66B

68K

R70B

33K

R69B

BC560C

BC550C

MJE2361T

MJE5730

MPSA92

MPSA42

MPSA63

MPSA13

A13

Q29

A63

Q28

GREEN

LD3

470K

R101 470K

R97

GREEN

LD4

330R

R98

500mW

4v7

ZD1 500mW

4v7

ZD2

BAV21

D35

BAV21

D36

100K

R96 100K

R100

250v

220n

C43

330R

R99

22n

16v

C20A

MJE350

BCE

MJE340

10R

R65B

1N4004

D49

2N5551

BF872

BDX53C

BDX54C

10R

R66A

100n

10R

R59A

10R

R65A

10R

R107

10R

R106

RFB

L-

-145

-145 -145

ROG

RCLIM

LCLIM

RTSENSE

LTSENSE

R-

L+

-78

7-8

R+

HDRM+

CLP+

CLP-

HDRM-

+18 +18

+18

ACTGND

KILL

GND

RMS

-18 -18

-18

LOG

RDRV

+78

87+

+145

+145 +145

+145

541+54

LDRV

LFB

9.5

9.85 1.6 WATTS

Iled=20mA

300mV/47K

HARD LIMIT @ 11.2 Vp

6.4 uA ->

HDRM - CLP = 300mV

3 CATHODE

2 ANODE

1 REF

33078 BYPASS:

48V VERSION

300 VOLTS ARE PRESENT

ON THIS CIRCUIT BOARD.

SERVICE CAUTION: VOLTAGES GREATER THAN

LEFT ACTIVITY

RIGHT ACTIVITY

RDRV (LDRV) IS LIMITED TO 75 mA.

THE MAXIMUM CURRENT AVAILABLE FROM

M1012

DIRECT TO

BLACK WIRE

EXTRA BRIGHT LEDS!

CAPACITOR VOLTAGES SHOWN ARE MINIMUM REQUIRED.

(LOG AND ROG MUST BE GROUNDED TO THE HIGH CURRENT INTERFACE GROUND)

THE FOLLOWING PATCH PLUGS FOR MW1 AND MW2 SHOULD BE ASSEMBLED.

AND THE HI-TEMP SHUT DOWN

THE OPERATION OF THE FAN

RTSENSE OR LTSENSE.

MAY BE VERIFIED BY GROUNDING

(REQUIRED FOR OPERATION)

INTERFACE:

CONTROL

TO TEST THIS PCB WITHOUT POWER OUTPUT MODULES CONNECTED,

INTERFACE

HIGH CURRENT

GND AT

1: LDRV

2: LOG

3: LCLIM

4: LFB

5: LTSENSE

TO AMP A AND AMP B.

FROM M1013 BRIDGE RECT PCB,

HIGH CURRENT INTERFACE:

FIXTURE PLUG.

NOTE ABOUT TEST

AMP MODULES. SEE

WITHOUT THE POWER

BE OPERATED

THIS BOARD MAY

TO AMP A (LEFT)

TO AMP B (RIGHT)

PCB:

FROM INPUT

NOTE: ALL UNMARKED DIODES ARE 1N4148

OVERHEAT SHUTDOWN

TO ACTIVITY LEDS.

POWER

PROTECT

ISOTHERMAL

FP=FLAMEPROOF

SHEAR SHEAR

ROUTE

GAGE

0.01"/HOLE

.020"

.012"

.008"

.005"

VCD

.020"

.012"

.008"

.005"

SHEAR SHEAR

.020"

.012"

.008"

.005"

5.13

SOLDERSIDE M1011-5.10

BLANK SIZE=16.000"X11.050"

M1011-

RED

YEL

BLK

WHT

BLU

POW SUP

BOTTOM INPUT BOARD

TOP

TJH1

GUIDE

ETCH

EY16

HS1

PART#

HS2

PART#

R60B 2_WATT

220K

@R8

HS3

PART#

MS4

8POS.RT.ANGLE_MOLEX

#XXXX

INPUT_BOARD

D21B

4148

D21A

4148

_MW1

FUNCTION

PART#

Q19B

MJE350

TP6

TP5

C22B

@C1

300V

10P

C23B

@C1

300V

10P

C22A

@C1300V

10P

C23A

@C1

300V

10P

Q19A

MJE350

Q18A

MJE340

Q18B

MJE340

C27B

@C2

160V

10U

C28B

@C2

160V

10U

C28A

@C2

160V

10U

C27A

@C2

160V

10U

R103

@R3

0.5W

15K

R102

@R3

0.5W

15K

MS1

AMP_A

R60A

@R8

2WATT

220K

HS6

PART#

C20A

22N

C20B

22N

MS2

AMP_B

MW4

Q12B

@Q3

MPSA42

Q13B

@Q4

MPSA92 Q13A @Q4

MPSA92

Q12A

@Q3

MPSA42

D35

BAV21

C29A

330U

16V

D19B

4148

J27

C16

10u

16V

Q21A

2V5

NJM431

J15

ZD8

20V

C28

10u

16V

MW1

Q14B

BC560 Q17B

BC550 Q17A

BC550

Q14A

BC560

D14B

4148

D13B

4148

D15B

4148

D16B

4148

D17B

4148

D18B

4148

D20B

4148

D22A

4148

D23A

4148

D19A

4148

R100 100K

D18A

4148

D17A

4148

D16A

4148

D15A

4148

D13A

4148

D14A

4148

D23B

4148

D22B

4148

D50

4148

D51

4148

C48

100U

25V

C18B

22U

16V

C19B 22U

16V

C21B

22U

10V

C24B

22U

10V

C25A

4U7

10V

C26A

4U7

10V

C24A

22U

10V

C21A

22U

10V

C19A

22U

16V C18A

22U

16V

C49

100U

25V

C26B 4U7

10V

C25B

4U7

10V

C29 100N

R40B

220R

R39B 7K5

R41B 7K5

R38B

7K5

R42B

7K5

R44B 1K

R45B

R46B 4K7

R47B 1K5

R48B

1K5

R49B

470R

R50B 4K7

R51B

1K5

R52B

1K5

R53B470R

R43B

R56B

17K8

R55B

@R5

21K5

MW2

R66A

10R

R61A

@R9

47R

R62A

@R9

47R

R63A 39R

Q20A

2V5

NJM431

MW3

R55A

@R5

21K5

R64B

@R7

150R

R57B

@R7

150R

R56A 17K8

R43A

R53A

470R

R52A

1K5

R51A 1K5

R50A 4K7

R49A

470R

R48A

1K5

R47A 1K5

R46A 4K7

R45A 1K

R44A 1K

R42A

7K5

R38A

7K5

R41A

7K5

R39A

7K5

R40A

220R

R65B10R

Q37

BC550

R105

R104 1K

R58B 39R

R63B 39R

R62B

@R9

47R

MS3

POWER_SUPPLY

R61B

@R9

47R

_MW2

R66B

10R

# DESCRIPTION OF CHANGE

VER#

DATE

MODEL(S):-

OCT/27/97

FEB/15/95

NOV/29/94

JUN/22/94

5.12

5.10

5.00

4.53

PC#5497_R66A/B_1/8WFP->1/4WFP

Q14A/Q21A_MOVED_TO_AID_RAD_INSERT

PC4651_LED’S->NJM431+2_RESISTORS

PC#4529_BD651->BDX53C_BD652->BDX54C

AP-3000

M1011.PCB_DATABASE_HISTORY

R65A10R

EY13

Q21B

2V5

NJM431

EY1

EY4

EY7

TJH2

GUIDE

ETCH

EY10

EY9

J14

2U2

63V

R59A10R

4148

D20A

4148

J10

Q31

BDX54C

FUNCTION

C27

220P

J18

J16

C14

2U2

63V

J23

Q30

BDX53C

FUNCTION

_MW4

R11249R

TP9

TP4

TP3

TP2

TP1

NO NC C

RE1

AROMAT_RELAY

#3699

48V_COIL

C43 220N

250V

C42

220N

250V

25A10K

PT#4400

25A10K

PT#4400

R99

@R6

1/4W

330R

R98

@R6

1/4W

330R

R124

@R13

0.5W

1K5 EB

Q11

PART#

FUNCTION

BF872

D48

1N4004

ZD17

@ZD1

10V

C31

27P

_MW3

FUNCTION

C32

27P

Q28

A63

Q29

A13

Q38

@Q5

MPSA92

Q36

@Q6

2N5551

Q10

A63

C17

47U

10V

47U

10V

ZD2

4V7

ZD1

4V7

E B

Q16B

@Q2

TIP50

BC550

BC560

BC550

BC560

BC550

D36

BAV21

J19

J11

4148

D11

4148

D49

1N4004

D12

4148

D10

4148

D46

4148

J21

4148

RV1

100K

C52

4U7

63V

C10

16V

@U1

33078

@U1

33078

100N

C1247P

C11 47P

C13 100N

RV2

100K

RV3

100K

RV4

100K

100N

C147P

47P

LD4

GRN

LD3

GRN

LD5

RED

LD2

RED

LD6

GRN

LD1

RED

R96

100K

C23

220P

R97

470K

R101

470K

R54B

47K

J26

R132

1K5

R131

1K5

R128

220K

R129

R127

4K7

R126

10K

R32

249R

R12

249R

R34

10K0

R33

10K0

R30 820R

R231K

R31

220K

R25 17K8

R35249R

R241K

R26

R29

R27

47K

R28

47K

R125

270R

@10R

R130

10K

R19 45K3

@R14

47K

R547K

R21

10K0

R18

270R270R

R83K

R63K

R41K

@R1

5K36

R317K8

R15

@R2

113K0

R2010K0

R16

@R2

113K0

R17 270R270R

R10

220K

R36

330R

R21K

R13

10K0

R14

10K0

820R

J24

@U1

33078

R42

10K0

R40 10K0

R45

10K0

R44

10K0

R38 82K5

R39 82K5

R43

82K5

R41

82K5

PART#

E B

Q15A

@Q1

MJE5730

E B

Q15B

MJE5730

@Q1

E B

Q16A

@Q2

TIP50

J13

R58A 39R

C26

100N

R69B

@R11

33K

J17

J20

ZD7

20V

J22

J25

R68A

@R12

68K

R22

@R1

5K36

J28

GUIDE

ETCH

EY11

EY14

R69A

@R11

33K

HS5

PART#

J29

C29B

330U

16V

R54A 47K

R106 10R

R37

@R4

15R

R107

10R

R59B

10R

R57A

@R7

150R

R64A

@R7

150R

Q20B

2V5

NJM431

R70A

@R12

68K

R70B

@R12

68K

R68B

@R12

68K

R67B

@R11

33K

R67A

@R11

33K

C25

10u

16V

C15

10u

16V

EY6

EY3

EY2

EY5

EY8

EY12

EY15

# DESCRIPTION OF CHANGEVER#DATE

MODEL(S):-

OCT/27/97

APR/08/97

FEB/15/95

NOV/29/94

JUN/22/94

FEB/94

JAN/18/94

AUG/06/93

5.12

5.11

5.10

5.00

4.53

4.52

4.51

PC#5497_R66A/B_1/8WFP->1/4WFP

PC#5353_R60A/B->2_WATT

Q14A/Q21A_MOVED_TO_AID_INSERTION

PC#4651_LED’S->NJM431+2_RESISTORS

PC#4529_BD651->BDX53C_BD652->BDX54C

PC#4545_R1/R22_6K2->5K36

PC#4533_R19_43K->45K3

R19_51K->43K

PC#4443_R17,R18_470R->270R

AP-3400

M1011A.PCB_DATABASE_HISTORY

EY17

-55

-18

+18

+100

-100

+55

R+

L+

-18M

L+M

R-M

L-M

R+M

+18M

R-

L-

GND

ASSEMBLY M1011-5.13

BLANK SIZE=16.000"X11.050"

PCB MECH M1011-5.13

BLUE

WHT

BLK

BLKL

YELL

RED

TO BE HAND INSERTED

INSERTED C3 1U 16V

1 RV2,RV4 TO BE HAND

PRODUCTION NOTES

HOLE

PT#4790

WIRE

BLK

WIRE

BLK

VER 5.13

AP-3400

M1011A

48V COIL

DOWN

FACE

M1011A

NOTE RELAY HAS

AUG/05/98 5.13 PC#5528_Q16 A,B REPLACE WITH TIP50#6891

TJH1

GUIDE

ETCH

EY16

HS1

PART#

HS2

PART#

R60B 2_WATT

220K

@R8

HS3

PART#

D21B

4148

D21A

4148

_MW1

FUNCTION

PART#

Q19B

MJE350

TP6

TP5

C22B

@C1

300V

10P

C23B

@C1

300V

10P

C22A

@C1 300V

10P

C23A

@C1

300V

10P

Q19A

MJE350

Q18A

MJE340

Q18B

MJE340

C27B

@C2

160V

10U

C28B

@C2

160V

10U

C28A

@C2

160V

10U

C27A

@C2

160V

10U

R103

@R3

0.5W

15K

R102

@R3

0.5W

15K

R60A

@R8

2WATT

220K

HS6

PART#

C20A

22N

C20B

22N

Q12B

@Q3

MPSA42

Q13B

@Q4

MPSA92 Q13A @Q4

MPSA92

Q12A

@Q3

MPSA42

D35

BAV21

C29A

330U

16V

D19B

4148

J27

C16

10u

16V

Q21A

2V5

NJM431

J15

ZD8

20V

C28

10u

16V

Q14BBC560 Q17B

BC550 Q17A

BC550

Q14A

BC560

D14B

4148

D13B

4148

D15B

4148

D16B

4148

D17B

4148

D18B

4148

D20B

4148

D22A

4148

D23A

4148

D19A

4148

R100 100K

D18A

4148

D17A

4148

D16A

4148

D15A

4148

D13A

4148

D14A

4148

D23B

4148

D22B

4148

D50

4148

D51

4148

C48

100U

25V

C18B

22U

16V

C19B 22U

16V

C21B

22U

10V

C24B

22U

10V

C25A

4U7

10V

C26A

4U7

10V

C24A

22U

10V

C21A

22U

10V

C19A

22U

16V

C18A

22U

16V

C49

100U

25V

C26B 4U7

10V C25B

4U7

10V

C29 100N

R40B

220R

R39B 7K5

R41B 7K5

R38B

7K5

R42B

7K5

R44B 1K

R45B

R46B 4K7

R47B 1K5

R48B

1K5

R49B

470R

R50B 4K7 R51B

1K5

R52B

1K5

R53B470R

R43B

R56B

17K8

R55B

@R5

21K5

R66A

10R

R61A

@R9

47R

R62A

@R9

47R

R63A 39R

Q20A

2V5

NJM431

R55A

@R5

21K5

R64B

@R7

150R

R57B

@R7

150R

R56A 17K8

R43A

R53A

470R

R52A

1K5

R51A 1K5

R50A 4K7

R49A

470R

R48A

1K5

R47A 1K5

R46A 4K7

R45A 1K

R44A

R42A

7K5

R38A

7K5

R41A

7K5

R39A

7K5

R40A

220R

R65B10R

Q37

BC550

R105

R104 1K

R58B 39R

R63B 39R

R62B

@R9

47R

R61B

@R9

47R

_MW2

R66B

10R

D# VER#DATE

MODEL(S):-

OCT/27/97

FEB/15/95

NOV/29/94

JUN/22/94

5.12

5.10

5.00

4.53

PC#5497_R66A/B_1/8WFP->1/4WFP

Q14A/Q21A_MOVED_TO_AID_RAD_INSERT

PC4651_LED’S->NJM431+2_RESISTORS

PC#4529_BD651->BDX53C_BD652->BDX54C

AP-3000

M1011.PCB_DATABASE_HISTORY

R65A10R

EY13

Q21B

2V5

NJM431

EY1

EY4

EY7

TJH2

GUIDE

ETCH

EY10

EY9

J14

2U2

63V

R59A10R

4148

D20A

4148

J10

Q31

BDX54C

FUNCTION

C27

220P

J18

J16

C14

2U2

63V

J23

Q30

BDX53C

FUNCTION

1_MW4

R11249R

TP9

TP4

TP3

TP2

TP1

NO NC C

RE1

AROMAT_RELAY

#3699

48V_COIL

C43 220N

250V

C42

220N

250V

25A10K

PT#4400

25A10K

PT#4400

R99

@R6

1/4W

330R

R98

@R6

1/4W

330R

R124

@R13

0.5W

1K5 EB

Q11

PART#

FUNCTION

BF872

D48

1N4004

ZD17

@ZD1

10V

C31

27P

_MW3

FUNCTION

C32

27P

Q28

A63

Q29

A13

Q38

@Q5

MPSA92

Q36

@Q6

2N5551

Q10

A63

C17

47U

10V

47U

10V

ZD2

4V7

ZD1

4V7

E B

Q16B

@Q2

BC550

BC560

BC550

BC560

BC550

D36

BAV21

J19

J11

4148

D11

4148

D49

1N4004

D12

4148

D10

4148

D46

4148

J21

4148

RV1

100K

C52

4U7

63V

C10

16V

@U1

33078

@U1

33078

100N

C1247P

C11 47P

C13 100N

RV2

100K

RV3

100K

RV4

100K

100N

C147P

47P

LD4GRN

LD3

GRN

LD5

RED

LD2

RED

LD6

GRN

LD1

RED

R96

100K

C23

220P

R97

470K

R101

470K

R54B

47K

J26

R132

1K5

R131

1K5

R128

220K

R129

R127

4K7

R126

10K

R32

249R

R12

249R

R34

10K0

R33

10K0

R30 820R

R231K

R31

220K

R25 17K8

R35249R

R241K

R26

R29

R27

47K

R28

47K

R125

270R

@10R

R130

10K

R19 45K3

@R14

47K

R547K

R21

10K0

R18

270R270R

R83K

R63K

R41K

@R1

5K36

R317K8

R15

@R2

113K0

R2010K0

R16

@R2

113K0

R17 270R270R

R10

220K

R36

330R

R21K

R13

10K0

R14

10K0

820R

J24

@U1

33078

R42

10K0

R40 10K0

R45

10K0

R44

10K0

R38 82K5

R39 82K5

R43

82K5

R41

82K5

PART#

E B

Q15A

@Q1

MJE5730

E B

Q15B

MJE5730

@Q1

E B

Q16A

@Q2

J13

R58A 39R

C26

100N

R69B

@R11

33K

J17

J20

ZD7

20V

J22

J25

R68A

@R12

68K

R22

@R1

5K36

J28

GUIDE

ETCH

EY11

EY14

R69A

@R11

33K

HS5

PART#

J29

C29B

330U

16V

R54A 47K

R106 10R

R37

@R4

15R

R107

10R

R59B

10R

R57A

@R7

150R

R64A

@R7

150R

Q20B

2V5

NJM431

R70A

@R12

68K

R70B

@R12

68K

R68B

@R12

68K

R67B

@R11

33K

R67A

@R11

33K

C25

10u

16V

C15

10u

16V

EY6

EY3

EY2

EY5

EY8

EY12

EY15

1EGNAH

C FO NOITP

#VER#

DATE

MODEL(S):-

OCT/27/97

APR/08/97

FEB/15/95

NOV/29/94

JUN/22/94

FEB/94

JAN/18/94

AUG/06/93

5.12

5.11

5.10

5.00

4.53

4.52

4.51

PC#5497_R66A/B_1/8WFP->1/4WFP

PC#5353_R60A/B->2_WATT

Q14A/Q21A_MOVED_TO_AID_INSERTION

PC#4651_LED’S->NJM431+2_RESISTORS

PC#4529_BD651->BDX53C_BD652->BDX54C

PC#4545_R1/R22_6K2->5K36

PC#4533_R19_43K->45K3

R19_51K->43K

PC#4443_R17,R18_470R->270R

AP-3400

M1011A.PCB_DATABASE_HISTORY

EY17

-55

-18

+18

+100

-100

+55

R+

L+

-18M

L+M

R-M

L-M

R+M

+18M

R-

L-

GND

ASSEMBLY M1011-5.13

BLANK SIZE=16.000"X11.050"

PCB MECH M1011-5.13

BLUE

WHT

BLK

BLKL

YELL

RED

TO BE HAND INSERTED

INSERTED C3 1U 16V

1 RV2,RV4 TO BE HAND

PRODUCTION NOTES

HOLE

PT#4790

WIRE

BLK

WIRE

BLK

VER 5.12

AP-3400

M1011A

48V COIL

DOWN

FACE

M1011A

NOTE RELAY HAS

P:\1011APRT.PRN

TIP50

AUG/05/98 5.13 PC#5528_Q16 A,B REPLACE WITH TIP50#6891

1/2

5532

4M7

R14

16v 470n

OUT

1/2

5532

17K8:1%

R15

16v 150n

16v 47n

16v

100n

16v 68n

SRT

CH_B_IN

NO_GOLD

JB2 1

NUTRIX

BAL_IN

JB1

1/2

33078

10K:1%

14K0:1%

470p

100p

EY2

WC1

5K6

R12

R4 7K5

R13

1/2

33078

17K8:1%

R11

17K8:1%

R10

10K:1%

82K5:1%

R17

82K5:1%

R35

10K:1%

R27

17K8:1%

R28

17K8:1%

R29

1/2

33078

7K5

R31

R26 5K6

R30

100p

C14

100p

C13

470p

C12

470p

C11

14K0:1%

R22

14K0:1%

R25

10K:1%

R24

R23

10K:1%

R21

R20

1/2

33078

NUTRIX

BAL_IN

JB4

SRT

CH_A_IN

NO_GOLD

JB3 1

YORKVILLE

NAME: PCB#&VER:

MODELS: SCH ISSUE:

TITLE:

DATE:

M1012-2.00

AP-3400

AUDIO-PRO

M1012A.SCH

SEP/19/94

INPUT_&_FILTER

0.00

16v 68n

C15

16v

100n

C16 16v 47n

C18 16v 150n

C19

17K8:1%

R33

470R

R16

OUT

16v 470n

C17

4M7

R32 470R

R34

100n

C23

100n

C24

100n

C21

100n

C22

1K5

R18

1K5

R36

16v

6n8

C10

16v

6n8

C20

OUT

SIG_R

GND

+18

-18

SIG_L

18Ga BLACK WIRE

REF_L

REF_R

LEFT = CHAN A

RIGHT = CHAN B

GROUND STRAP:

GREEN WIRE TO

TO M1011 GND

+2dB

IN = MONO

MUST BE BREAK BEFORE MAKE, #3436

20KHz

TO PIN 4 OF 5532

-1dB 30Hz

+4dB 55Hz

FILTER

VCD

.025"

.030"

.040"

.050"

.060"

SHEAR SHEAR

SHEAR

SHEAR SHEAR

2.00

SOLDERSIDE M1012-2.00

1.20

SEPT’89

M1012

BLANK SIZE=15.700"X10.000"

DRILL DETL M1012-2.00

5532

4040

33078

@U1

40404040

40 40 40 40

33078

@U1

40 40 40 40

40404040

R14

4M7

R15

17K8

10K0

14K0

@R1

14K0

@R1

BUT1

GREY_BUTTON

R12

5K6

R13

7K5

R11

17K8

R10

17K8

10K0

R17

82K5

R35

82K5

R27

10K0

R28

17K8

R29

17K8

R31

7K5

R26

R30

5K6

MONO

#3436

R22

14K0

@R1

R25

14K0

@R1

R24

10K0

R23

R21

10K0

R20

R33

17K8

R16

470R

R32

4M7

R34

470R

R18

1K5

R36

1K5

470N

150N

47N

100N

68N

C15

68N

C16

100N

C18

47N

C19

150N

C17

470N

C10

6N8

C20

6N8

J17

52 52

J18

52 52

JB3

UNBAL_IN_B

59 59

470P

100P

C14

100P

C13

100P

C12

470P

C11

470P

C23

100N

C24

100N

C21

100N

C22

100N

52 52

LINEWIDTH GAUGE

TP1

40 40

TP2

40 40

B_BAL_INPUT

PART#

PT#3660

52 52

JB2

UNBAL_IN_A

59 59

BUT2

GREY_BUTTON

52 52

J11

52 52

J13

52 52

J14

52 52

J15

52 52

J16

52 52

MC1

FUNCTION

5959595959595959

16 16 16 16 16 16 16 16

3030

#3436

BASS_BOOST

J19

40 40

1515

52 52

128

TJH1

128

TJH2

J12

52 52

WC1

J10

40 40

1515

WC2

A_BAL_INPUT

PT#3660

52 52

ASSEMBLY M1012-2.10 BLANK SIZE=15.700"X10.000"

PCB MECH M1012-2.00

SWITCH/S

GRN

BLK 13"

AZ HOLE

16AWG

REF_R

SIG_R

REF_L

SIG_L

ARE #3436

MAKE!!!!

BEFORE

BREAK

-18V

GND

+18V

VER. 2.10

AP-3400

M1012A

AP-3400

M1012A

WC3

MC1

40CFM

FAN

22n

CSA

C54

MC1

D47

7K5

R123

33v

500mW

ZD15

27K

R116

MC1

WC8

WC6

WC4

WC7

EY7

EY6

EY3

EY5

EY10

WC11

WC1

R124

D48

EY13 EY14

D37

D46

22nCSA C53

4n7

CSA

C55

EY4

EY2

EY11

D41

4v7

500mW

ZD10

2R2

0.5W

R122

D40

MJH11018

Q35

EY8

1N4004

D45

470u25v C51

1N4004

D44

25v

22n

C50

A06

Q33

4v7

500mW

ZD11

68K

R113 68K

R112

D39

D38

22K

R118

1.2M

R114 33V

500mW

ZD12

33V

500mW

ZD13

1N4004

D43 1N4004

D42

15K

R117

220R

R119

2N5551

Q34

47K

R108

2R2

0.5W

R121

47K

R109

17K8:1%

R111

14K0:1%

R110

2N5551

Q32

100K

RV6

100K

RV5

13A/85C

TB2

12A/SW

TB1

MJH11018

ECB

MPSA06

EBC

2N5551

2R2

0.5W

R120

# DESCRIPTION OF CHANGEVER#DATE

MODEL(S):-

AUG/12/97

1.40

PC#5444_R120->122_1/4W->1/2W

AP3400

M1013A.SCH_DATABASE_HISTORY

WC10

EY12

EY9

YORKVILLE

NAME: PCB#&VER:

MODELS: SCH ISSUE:

TITLE:

DATE:

M1013A

AP-3400

M1013A.SCH

AUG/12/97

SUPPLY/FAN_PCB

1.40

330u

80V

C47

330u

80V

C46

330u

80V

C45

330u

80V

C44

13AMP

DB2

13AMP

DB1

YSL#

120VAC

1KVA

TYPE_H

TR1

4v7

500mW

ZD14

27K

R115

WHITE

BLACK

CHASSIS

KILL

GND

GND GND

GND

+78 +78

+78

+18

RTSENSE

LTSENSE

RMS

-78

-145

+145

TO M1011A:

HIGH CURRENT TO M1011A

TO WC1 ON M1012

BLUE

WHITE

BLACK

YELLOW

RED

UNDER CAP:

ALL UNMARKED DIODES ARE 1N4148.

ACTUAL PARTS MAY HAVE HIGHER VOLTAGE RATINGS.

NOTE: CAPACITOR VOLTAGE RATINGS SHOWN ARE MINIMUM REQUIRED.

BLK

WHITE

BLUE

YELLOW

RED

GREY

120 VAC 60 Hz LINE

STRAP

GROUND

RMS IN

AMBIENT

10.7v

5 WATTS

ABOUT

SENSOR:

530uA

220uA

IDLE

15.6v

13.5v

13 A = 15K

11 A = 33K

AT 25~ AMBIENT:

28v @ 80~

10K @ 80~

25K @ 55~

50K @ 40~

100K @ 25~

GREEN

WC3

MC1

40CFM

FAN

22n

CSA

C54

MC1

D47

7K5

R123

33v

500mW

ZD15

27K

R116

MC1

WC8

WC6

WC4

WC7

EY7

EY6

EY3

EY5

EY10

WC11

WC1

R124

D48

EY13 EY14

D37

D46

22nCSA C53

4n7

CSA

C55

EY4

EY2

EY11

D41

# DESCRIPTION OF CHANGEVER#DATE

MODEL(S):-

SEPT/28/95 V

1.40 N

PC#4883

AP-3400E

M1013AE.SCH_DATABASE_HISTORY

4v7

500mW

ZD10

2R2

R122

D40

MJH11018

Q35

EY8

1N4004

D45

470u25v C51

1N4004

D44

25v

22n

C50

2R2

R121

A06

Q33

4v7

500mW

ZD11

68K

R113 68K

R112

D39

D38

22K

R118

1.2M

R114

2R2

R120

33V

500mW

ZD12

33V

500mW

ZD13

1N4004

D43 1N4004

D42

15K

R117

220R

R119

2N5551

Q34

47K

R108

AC LINE FILTER

BLU

GRN/YEL

BRN

47K

R109

17K8:1%

R111

14K0:1%

R110

2N5551

Q32

100K

RV6

100K

RV5

13A/85C

TB2

8A/SW

TB1

MPSA06

EBC

2N5551

MJH11018

ECB

YORKVILLE

NAME: PCB#&VER:

MODELS: SCH ISSUE:

TITLE:

DATE:

M1013A-2.20

AP-3400E

M1013AE.SCH

SEP/28/95

SUPPLY/FAN_PCB

1.40

WC10

EY12

EY9

330u

80V

C47

330u

80V

C46

330u

80V

C45

330u

80V

C44

13AMP

DB2

13AMP

DB1

YSL#1288E

220/240VAC

TR1

4v7

500mW

ZD14

27K

R115

BLUE

CHASSIS

KILL

GND

GND GND

GND

+78 +78

+78

+18

RTSENSE

LTSENSE

RMS

BROWN

-78

-145

+145

ADDED EMI AC LINE FILTER

EY3 FOR 220V

GREEN WIRE TO

EY3 FOR 240V

ORANGE WIRE TO

220/240 VAC 50 Hz LINE

240V

220V

BRN

GRN

ORN

TO M1011A:

HIGH CURRENT TO M1011A

TO WC1 ON M1012

BLUE

WHITE

BLACK

YELLOW

RED

UNDER CAP:

ALL UNMARKED DIODES ARE 1N4148.

ACTUAL PARTS MAY HAVE HIGHER VOLTAGE RATINGS.

NOTE: CAPACITOR VOLTAGE RATINGS SHOWN ARE MINIMUM REQUIRED.

WHITE

BLUE

YELLOW

RED

GREY

STRAP

GROUND

RMS IN

AMBIENT

10.7v

5 WATTS

ABOUT

SENSOR:

530uA

220uA

IDLE

15.6v

13.5v

13 A = 15K

11 A = 33K

AT 25~ AMBIENT:

28v @ 80~

10K @ 80~

25K @ 55~

50K @ 40~

100K @ 25~

GRN/YEL

.020"

.012"

.008"

.005"

SHEAR

SHEARSHEAR

SHEAR

SHEARSHEAR

VCD

.020"

.012"

.008"

.005"

.020"

.012"

.008"

.005"

SOLDERSIDE M1013-2.30

2.30

BLANK SIZE=12.600"X6.500"

M1013-

2 OZ COPPER

DRILL DETL M1013-2.30

TJH2

#3822

C44

@C1 80V

330U

C45

@C1 80V

330U

C46

@C1 80V

330U

C47

@C1 80V

330U

EY7

RED

EY10

BLU

EY11

GREY

EY5

YELLOW

EY12

WHITE

WC1

BLK

TJH1

WC3

RED

TP8

TP7

C50

22N

WC7

BLU

WC8

YEL

MC1

FUNCTION

D44

1N4004

D45

1N4004

D42

1N4004

D43

1N4004

EY13

FAN-

WC6

BLK

WC10

8_1/2"BLK_DBL/INS

WC4

WHT

#3743

EY8

RED

C51

470U

63V

EY6

YELLOW

EY9

BLU

#3743

J20

Q33

A06

Q34

@Q1

2M5551

Q32

@Q1

2M5551

ZD15

33V

D46

4148

ZD10

4V7

ZD11

4V7

ZD13

33V

ZD12

33V

ZD14

4V7

D47 4148

D37 4148

J22

D41 4148

D40

4148

D39 4148

D38 4148

RV5

100K

#6477

R123

7K5

R116

@R2

27K

# DESCRIPTION OF CHANGEVER#DATE

MODEL(S):-

NOV/24/95

SEP/20/94

JUN/23/94

2.30

2.21

PC#49**

PC#4576

PC#4529

AP-3000

M1013.PCB_DATABASE_HISTORY

EY2

AC-WHITE

J25 J24

J21

J23

EY3

X-F,BLACK

# DESCRIPTION OF CHANGEVER#DATE

MODEL(S):-

NOV/24/95

SEP/20/94

MAY/26/94

2.30

2.21

2.20

PC#49**

PC#4576

PC#4609

AP-3400

M1013A.PCB_DATABASE_HISTORY

R1222R2_1/2W

R1212R2_1/2W

R113 68K

R112 68K

R11822K

R114

@R1

1M2

R1202R2_1/2W

R11715K

R119220R

R108 47K

R109

47K

R111 17K8

R110 14K0

R115

@R2

27K

EY4

X-F,BLACK

SPARE

DUMMY

LEADS UP

KBPC3506-W

DUMMY

LEADS UP

KBPC3506-W

GUIDE

ETCH

C55

4N7

250V

WC11

T-BRK

TP9

BE Q35

FAN_CTRL

MJH11018

EY14

FAN-

GUIDE

ETCH

GUIDE

ETCH

C53

22N

250V

C54

22N

250V

RV6

100K

#6477

R1241K

D48

4148

ASSEMBLY M1013-2.30

BLANK SIZE=12.600"X6.500"

PCB MECH M1013-2.30

WC11 WIRE DBL INSULATED

ADD EXTRA EYELETS FOR

EURO XFMR 245/230V

ADD EXTRA EYELETS FOR

WC11 WIRE DBL INSULATED

R115,R116 22K TO 27K -

- ZD13 20V TO 33V

BD651 TO BDX53C

11" 11" 11" 11"12" 12"

SIX WIRES 16AWG 10.5"

+18

18AWG

GRN

RMS

KILL

L T-SEN

R T-SEN

LAY DOWN

M1013A

AP-3400

M1013A

AP-3400

M1013A

R27 2R2

Q6A

@Q1

MTP2P50E

4148

D24148

4148

J12

R79

0.R47

4148

C22

@C3

#5892

80V

6800U

C23

@C3

#5892

80V

6800U

C24

@C3

#5892

80V

6800U

C25

@C3

#5892

80V

6800U

22U

10V

TAB7

WC6

16AWG

5.5"BLK

249R

2R2

150R

R15 150R

R10

4K7

15K

249R

R19 249R

R16 15K

R14

39R

R13

36K

R610K0

39R

R17

249R

R18

10K0

68R

R37

@R3

27K

R38

@R3

27K

R39

@R2

91K

R67

@R4

0.5W

15K

R26 470R

R46 1K

R30

1K2

R31

47R

R47 39R

ZD10

4V7/1W

R43

470R

R20 3K

R73 100K

D11

BAV21

J22

TAB6

TAB4

R64

33K

R65

10R

BC550

BC560

BC550

Q10

BC560

BC550

RT1

4K7

VBE

C4 470P

R63

5R6

5WATT

TAB3TAB1

Q11

MTP10N15L

Q12

@Q3

MTP8P20

C18

10N

J16

R74 150K

ZD9

16V/1W

ZD8

16V/1W

1N5

C15

2N2

#5427

500V

2N2 #5427

500V

C10

680P

C16

470P

C12

22N

C13

22N

WC7

16AWG

7"YEL

TAB2

R45A

3K6

C26

22N

R28

0.5W

R44

0.5W

R52

0R15

5WATT

R53

0R15

5WATT

R57

0R1

5WATT

R56

0R1

5WATT

R59

0R1

5WATT

R58

0R1

5WATT

R61

0R1

5WATT

R60

0R1

5WATT

R29

@R5

5WATT

3K6

R45

@R5

5WATT

3K6

Q22

YS#6927

Q24

YS#6927

R66

@R4

0.5W

15K

Q26

YS#6927

Q21

YS#6927

Q28

YS#6927

Q13

YS#6900

Q14

YS6900

Q16 YS#6900

Q18

YS#6900

Q20

YS#6900

4148

Q23

YS#6927

Q27

YS#6927

D15

MR854

D14

MR854

D13

MR854

D12

MR854

D21

MR854

D19

MR854

D18

MR854

D17

MR854

D16

MR854

D22

MR854

TP2

D23

MR854

ZD4

12V

ZD3

C17

100N

D26

4004

J19

ZD2

16V

330U

16V

330U

16V

2N6517

C11

220N

250V

Q30

TRIAC

MAC224-4

DC_PROT

D25

4148

R62

3R9

2WATT

TP4

D24

4004

TP5

TP7

TP6

TP8

TP9

TP10

TP1

J20

R21

2K2

R76

8K2

ZD6

ZD5

12V

4148

R77

470K

R23

4K7

R24

220K R25

220K

R42

4K7

R22 3K

R75 150K

ZD7 18V

D28

4148

D27

4148

J1 R51

220R0

R35 1K

R33

1W_FP

R49

1WATT

0.R47

C27

22N

Q6B

@Q1

MTP2P50E

ZD1

16V

C21

10U

16V

D10

BAV21

R72

@R6

47R

4148

@Q1

J21

R49A

@R1

2R2

R29A

3K6

R49B

@R1

2R2

22U

10V

@Q2

MTW10N40E

J15

Q15 YS#6900

Q17

YS#6900

Q25

YS#6927

TAB5

R78 470K

Q19

YS#6900

MC1

PART#

FUNCTION

J18

J17

R12

39R

Q29

MBS4992

4uH

Q34

MPSA42

R40 1K

_WC7

C14

220N

250V

D20

MR854

J10

R35A

20K

R36

91K

R70

18K

R71

@R6

47R

R48

39R

R68

@R4

0.5W

15K

RV1

100K

J11

R40A

20K

Q32

BC550

R69

@R4

0.5W

15K

R34 270R

C19

10N

250V

R50 270R

R55

220R0

Q33

2N5551

2U2

10V

Q31

MPSA92

R32

39R

R11 22R

R41 2R2

ASSEMBLY M1002-9.00 BLANK SIZE=14.750"X8.850"PCB MECH M1002-9.00

NOTE #6

OUTPUT

HOLE

AUTO ADJUST

TO M1011

VER. 9.10

RED WIRE

WIRE

BLUE

+78V

+145V GND

-78V -145V

1/2W

1/4WATT

AP-3400

M1002A

SGGS

AP-3400M1002A

P:\1002APRT.PRN

Testing Repaired Circuit Board

Now that you have rebuilt the M1002 or M1002A circuit board. It is just as important to

properly power up the board. If the sinewave doesn’t look right check the signal at test

point (1) on M1002 to ensure that the voltage amplifier on board M1011 or M1011A isn’t

distorting the signal. If there is still a damaged part on the board instantly turning it on

could blow up the board and you would be back where you started.

The best method is to connect the test connector shown in figure 3 to the 5 pin molex

connector MC1 and connect the power wires and ground to the power supply.

Connect a digital multimeter to test pins 8 and 9 to measure the bias quiescent current and

place a scope probe on the speaker output. Be sure to turn the quiescent current trimpot

RT1 fully counter clockwise.

Now using a variac slowly turn up the AC main voltage while monitoring the quiescent

voltage and the speaker output trace on the scope. Watching these two test points is a

good indicator of the health of the board. If you have a second multimeter connect it up

from the speaker output to test point 4 or 5. As you variac up also check these DC battery

voltages to ensure that they both increase in voltage to approximately +14 or –14 vdc.

If the board looks OK after variacing up to 120vac then slowly turn up the bias (RT1

trimpot) to obtain 3 to 5 millivolts of bias voltage on test points 8 and 9.

Now power down the board; connect MC1 to circuit board M1011 and variac up the

whole amplifier. Check the speaker output with a 1KHZ sinewave with no load. If this

looks good place the minimum rated load (4 ohm for M1002A, 2 ohm for M1002) on the

speaker output and increase the sinewave amplitude to the point of clipping. If the signal

looks free of oscillation, place a short across the speaker posts. The amplifier should go

into protect mode after 1/10 of a second. Remove the short and the sinewave will appear

6 seconds later.

Reassemble the complete amplifier and run just clipping music or pink noise into the

minimum rated speaker load for that model of amplifier. Let the amplifier heat up for 20

minutes. This will check the thermal mounting of the transistors and for any weak parts

not caught during troubleshooting.

If the amplifier passes this test the product is ready to return to the customer.

Figure 3.

See details of figure 3 in service manual.

YORKVILLE SOUND

AP3000 AND AP3400 SERVICE

Quick Fix for M1002 and M1002A

To speed up the servicing of the AP3000 or

AP3400 on your bench, Yorkville Sound’s service

department has developed a method to replace the

components most likely to fail when a M1002/A

amplifier board requires service.

This Quick Fix kit contains the procedure,

assembly drawings, and components to perform

the Quick Fix to a M1002 or M1002A board.

It should be understood that the person using

this procedure knows how to test resistors, diodes,

and transistors to determine if they are defective.

This procedure is not intended to be a substitute

for one’s lack of electronic capability.

Before starting, look at the board for repair

and locate the version number. It is very

important that you follow the procedure for the

appropriate circuit board version number.

A complimentary service manual for the

AP3000 power amplifier is supplied with this

M1002KIT.

STEP 1. Locate the assembly drawing for the version number printed on

the M1002 or M1002A circuit board to be serviced.

2. Remove all of the transistors coloured RED on the assembly drawing.

3. Measure and remove any of the diodes coloured BLUE on the assembly

drawing that may be damaged. Replace a 1N4732A 1W 4V7 zener (#6459)

{These components already exist on version 9 and higher, add only in versions

9 and lower.] that may have been added to the component side of the board

along with a series 0.5 ohm resistor. Refer to figure 1.

Figure 1

4. Rotate the trim pot RT1 fully counter - clockwise as in figure 2. Inspect and

replace any resistors that look burnt. Measure all of the resistor values

coloured YELLOW on the assembly drawing. The value that you measure

may not be exactly what is shown on the assembly drawing but if the resistor

doesn’t look damaged it should measure within + or – 5% of the printed value.

Figure 2

5. Measure the resistor coloured GREEN. The measured value should measure

within + or – 5% value listed in the table below. Replace any resistor that

measured beyond the + or – 5% value listed in the table below.

Resistor Printed Correct

Number Value Measured Value

-5% +5%

R10 4K7 2K25 2K3 2K35

6. Measure across the pair of test points listed in the table below. If the

measured value is not within + or – 10% of the value listed in the table then

replace the resistors shown in the table below.

Test Layout Correct Replace

Points Reference Measured Value Resistors

A to A TP2 to J19 -10% +10% R11, R12, R14

15ohm 17 ohm 19 ohm

7. Measure the resistors coloured ORANGE. Since the value of these resistors is

0.1 ohm, your ohmmeter will measure the higher series resistance of the test

leads if the resistor is OK. If the resistor is damaged your ohmmeter will read a

very high resistance (an open circuit). Replace any damaged resistors.

8. Measure the output TO –3 transistors (Q13 to Q28) to determine if any are

damaged. Mark any damaged transistors with a marking pen.

9. Replace any output transistors that you have marked as being damaged.

Replace any diodes that you have found to be damaged. Replace all of the red

transistors that were removed.

10. Inspect the traces on the circuit board for any that have ‘fused’ open or look

like they got very hot. Bridge and solder a piece of wire over any damaged

traces.

AFTER YOU HAVE REPLACED ALL OF THE NECESSARY

COMPONENTS INSPECT THE REPAIRED BOARD FOR ANY

MISSING PARTS, CORRECT VALUES IN THE CORRECT

POSITION AND THAT ALL COMPONENTS ARE SOLDERED.

SHEARSHEAR

SHEAR SHEAR

VCD

SHEAR SHEAR

SHEARSHEAR

SOLDERSIDE M1002-9.00

BLANK SIZE=14.750"X8.850"

SGG

R27 2R2

Q6A

@Q1

MTP2P50E

4148

D24148

4148

J12

R79

0.R47

4148

C22

@C3

#5892

80V

6800U

C23

@C3

#5892

80V

6800U

C24

@C3

#5892

80V

6800U

C25

@C3

#5892

80V

6800U

22U

10V

TAB7

WC6

16AWG

5.5"BLK

249R

2R2

150R

R15 150R

R10

4K7

15K

249R

R19 249R

R16 15K

R14

39R

R13

36K

R610K0

39R

R17

249R

R18

10K0

68R

R37

@R3 27K

R38 @R3 27K

R39

@R2 91K

R67

@R4

0.5W

15K

R26 470R

R46

R30

1K2

R31

47R

R47 39R

ZD10

4V7/1W

R43

470R

R20

R73 100K

D11

BAV21

J22

TAB6

TAB4

R64

33K

R65

10R

BC550

BC560

BC550

Q10

BC560

BC550

RT1

4K7

VBE

C4 470P

R63

5R6

5WATT

TAB3TAB1

Q11

MTP10N15L

Q12

@Q3

MTP8P20

C18

10N

J16

R74 150K

ZD9

16V/1W

ZD8

16V/1W

1N5

C15

2N2

#5427

500V

2N2 #5427

500V

C10

680P

C16

470P

C12

22N

C13

22N

WC7

16AWG

7"YEL

TAB2

R45A

3K6

C26

22N

R28

0.5W

R44

0.5W

R52

0R15

5WATT

R53

0R15

5WATT

R57

0R1

5WATT

R56

0R1

5WATT

R59

0R1

5WATT

R58

0R1

5WATT

R61

0R1

5WATT

R60

0R1

5WATT

R29

@R5

5WATT

3K6

R45

@R5

5WATT

3K6

Q22

YS#6927

Q24 YS#6927

R66

@R4

0.5W

15K

Q26

YS#6927

Q21

YS#6927

Q28

YS#6927

Q13

YS#6900

Q14

YS6900

Q16

YS#6900

Q18

YS#6900

Q20

YS#6900

4148

Q23

YS#6927

Q27

YS#6927

D15

MR854

D14

MR854

D13

MR854

D12

MR854

D21

MR854

D19

MR854

D18

MR854

D17

MR854

D16

MR854

D22

MR854

TP2

D23

MR854

ZD4

12V

ZD3

C17

100N

D26

4004

J19

ZD2

16V

330U

16V

330U

16V

2N6517

C11

220N

250V

Q30

TRIAC

MAC224-4

DC_PROT

D25

4148

R62

3R9

2WATT

# DESCRIPTION OF CHANGEVER#DATE

MODEL(S):-

MAR/12/98

JAN/28/98

DEC/08/97

DEC/09/97

OCT/19/95

MAR/01/95

FEB/28/95

AUG/25/94

9.10

9.00

8.00

7.00

6.20

6.10

6.00

1R/1W->0.R47/1W_ZD7_20V-18V

PC#5656_R49_2X1R_1/4W->0.R47_1W_R79

=2X_1R_1/4W_IN_PARALLEL_BY_HAND

PC#5551_ADD_R79,ZD10_ACROSS_R11_R49

PC#5546_R36,R39_1_END_78V->145V_

PC#5546

PC#4924

PC#4531

PC#4650

PC#4645

AP-3400

M1002A.PCB_DATABASE_HISTORY

TP4

D24

4004

TP5

TP7

TP6

TP8

TP9

TP10

TP1

J20

R21

2K2

R76

8K2

ZD6

ZD5

12V

4148

R77

470K

R23

4K7

R24

220K R25

220K

R42

4K7

R22 3K

R75 150K

ZD7 18V

D28

4148

D27

4148

J1 R51

220R0

R35 1K

R33

1W_FP

R49

1WATT

0.R47

C27

22N

Q6B

@Q1

MTP2P50E

ZD1

16V

C21

10U

16V

D10

BAV21

# DESCRIPTION OF CHANGEVER#DATE

MODEL(S):-

JAN/28/98

DEC/17/97

OCT/28/97

JAN/97

OCT/19/95

MAR/01/95

FEB/28/95

AUG/25/94

9.00

8.10

7.00

6.20

6.10

6.00

PC#5550_ADD_R79,ZD10_ACROSS_R11

PC#5550_R40A/R35A_16K->13K

PC#5498

ADDED_ROUTING_AT_TP8-TP9

PC#4924

PC#4650

PC#4645

AP-3000

M1002.PCB_DATABASE_HISTORY

R72

@R6

47R

4148

@Q1

J21

R49A

@R1

2R2

R29A

3K6

R49B

@R1

2R2

22U

10V

@Q2

MTW10N40E

J15

Q15 YS#6900

Q17

YS#6900

Q25

YS#6927

TAB5

R78 470K

Q19

YS#6900

MC1

PART#

FUNCTION

J18

J17

R12

39R

Q29

MBS4992

4uH

Q34

MPSA42

R40 1K

_WC7

C14

220N

250V

D20

MR854

J10

R35A

20K

R36

91K

R70

18K

R71

@R6

47R

R48

39R

R68

@R4

0.5W

15K

RV1

100K

J11

R40A

20K

Q32

BC550

R69

@R4

0.5W

15K

R34 270R

C19

10N

250V

R50 270R

R55

220R0

Q33

2N5551

2U2

10V

Q31

MPSA92

R32

39R

R11 22R

R41 2R2

ASSEMBLY M1002-9.00 BLANK SIZE=14.750"X8.850"PCB MECH M1002-9.00

R11,12,14,33,TO FLAMEPROOF. CIRCUIT CHANGES

R37,R38 10K->27K,R36,R39 27K->91K R34,R50 249R

R55,R51 249R->220R0 R40A,R35A 470R->20K

R11,12,14,33,49 TO FLAMEPROOF. CIRCUIT CHANGES ->270R C26,C27 10u->22N,R52,R53 0R1->0R15->270R C26,C27 10u->22N,R52,R53 0R1->0R15

R37,R38 8K2->16K,R36,R39 36K->68K R34,R50 249R

R55,R51 249R->220R0 R40A,R35A 470R->16K

NOTE #6

PT#6923 FROM MTP2P45 TO MTP2P50E

ACCOMODATE NEWER AND SMALLER FILTER CAPS ACCOMODATE NEWER AND SMALLER FILTER CAPS

TABS ADDED FOR SPKR OUTPUTS RTV HOLES MOVED TO TABS ADDED FOR SPKR OUTPUTS RTV HOLES MOVED TO

ADD DON’T BLOW ME UP CIRCUIT ADD DON’T BLOW ME UP CIRCUIT

REPLACE EYELETS WITH TABS REPLACE EYELETS WITH TABS

ROBOT ASSEMBLY. CHANGES TO TRACE ONLY

COLLECTORS MADE LARGER TO ACCOMODATE COLLECTORS MADE LARGER TO ACCOMODATE

PAD SIZE FOR OUTPUT TRANSISTOR PAD SIZE FOR OUTPUT TRANSISTOR

OUTPUT

HOLE

AUTO ADJUST

TO M1011

VER. 9.10

RED WIRE

WIRE

BLUE

+78V

+145V GND

-78V -145V

1/2W

1/4WATT

AP-3400

M1002A

SGGS

AP-3400M1002A

CHECK

BLU

RED

BLU

GREY

YELLOW

WHITE

YEL

WHT

RED

FAN-

BLK

T-BRK

BLK

RED

YELLOW

BLU

AC-WHITE

FAN-

WC7

C44

C45

C46

C47

EY7

EY10

EY11

EY5

EY12

WC8

TJH1

WC10

WC4

WC3

EY13

WC1

WC11

WC6

EY8

EY6

EY9

RV5

100K

EY2

EY3

EY4

C55

4N7

250V

EY14

C53

22N

250V

C54

22N

250V

RV6

100K

#1289

AP-3400CE XFMR WIRING

NOV 13. 95

SHOWN WIRED FOR

230V

BLU

RED

BLU

GREY

YELLOW

WHITE

YEL

WHT

RED

FAN-

BLK

T-BRK

BLK

RED

YELLOW

BLU

AC-WHITE

FAN-

WC7

C44

C45

C46

C47

EY7

EY10

EY11

EY5

EY12

WC8

TJH1

WC10

WC4

WC3

EY13

WC1

WC11

WC6

EY8

EY6

EY9

RV5

100K

EY2

EY3

EY4

C55

4N7

250V

EY14

C53

22N

250V

C54

22N

250V

RV6

100K

#1289

AP-3400CE XFMR WIRING

NOV 13. 95

SHOWN WIRED FOR

245V

Yorkville 3400 Users Manual

3400 to the manual 2b1c4d26-4522-9234-d56e-303018bd5c4c

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