Spectral Audio Pro Tone Service Manual Protone
Spectral Audio ProTone Service Manual ProTone_Service_Manual Spectral Audio - ProTone - Service Manual
Spectral Audio ProTone Service Manual protone_service_manual Spectral Audio - ProTone - Service Manual
User Manual: Spectral Audio ProTone Service Manual Spectral Audio - ProTone - Service Manual
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ProTone MIDI Analog Synthesizer Service Manual Copyright © 1996-2001 by Spectral Audio, Switzerland CAUTION! All instructions in this manual must be carried out by a professional who observes the valid safety regulations. In operation, they have got dangerous voltages in the instrument. Spectral Audio GmbH accepts no liability for personal injury or material damage. Service Manual ProTone Page 1 of 20 © 1996-2001 Spectral Audio 1 Description of the Operating Elements 3 1.1 Sockets on the Rear of the Housing 3 1.2 Front Panel Controls 4 2 Functional Description 5 3 History of Series 7 4 Improvements and explanations 7 5 6 7 8 4.1 Sense of R174 and R175 7 4.2 Sense of C63 – C65 7 4.3 Sense of R174 and R175 8 4.4 Hum Problems 8 4.5 Increasing the Gate voltage to +12V 8 Adjustment of the ProTone 9 5.1 Digital PCB (MIDI to CV converter) 9 5.2 Analog PCB (VCO1 and VCO 2) 9 5.2.1 VCO1 9 5.2.2 VCO2 9 Digital PCB 11 6.1 Assembly plan 11 6.2 Part list 11 Analog PCB 13 7.1 Assembly plan 13 7.2 Part list 15 Mechanical part list Service Manual ProTone 20 Page 2 of 20 © 1996-2001 Spectral Audio 1 Description of the Operating Elements ProTone SPECTRAL AUDIO GmbH Warning : Shock Hazard - do not open! Vorsicht : Lebensgefahr - nicht öffnen! Avis : Risque de choc Electrique - ne pas ouvrir! 230 V~ Out Right Out Left max. 500mAT Extern Extern VCO LFO Input Input Gate 5V:On 0V:Off CV MIDI Thru MIDI IN 43 44 Serial No. Made in Switzerland 1V/Oct 0.7 Veff 0.7 Veff 37 1.1 36. 37. 38. 39. 40. 41. 42. 43. 44. 36 38 39 40 41 42 Sockets on the Rear of the Housing Power socket Fuse compartment, fuse max. 500 mA, 250V type Audio outputs right / left External VCO input, switched on with switch (7) External modulation input, selected with selector switch (22) Gate input/output (dependent on the jumper setting inside the unit, standard setting: output) CV input / output (dependent on the jumper setting inside the unit, standard setting: output) MIDI Thru socket MIDI IN socket Service Manual ProTone Page 3 of 20 © 1996-2001 Spectral Audio 1 2 3 8 VCO 1 0 6 2 1 12 45 78 9 3 3 3 4 4 2 10NOISE 5 1 11 5 0 12 6+ -6 TUNE PW 6 45 7 8 9 3 2 10 1 11 0 12 VOL VCO 1 6 45 7 8 9 3 10 2 1 11 0 12 RINGMOD VCO 2 6 0 45 78 2 1 12 9 3 3 3 10 4 2 4 1 11 5 5 0SLIDE12 -6 6+ SYNC TUNE 4 1.2 5 6 9 EXT 7 6 45 7 8 9 3 2 10 1 11 0 VCO 122 VOL 10 11 12 13 19 20 18 21 LFO 6 6 45 78 4 5 7 8 HIGHPASS 6 MIDDLE 9 9 3 3 45 78 9 3 2 10 2 10 HIGH2 10 1 11 1 11 1 11 0 0 12 12 LOWPASS LOW CUTOFF RESONANZ 0 12 RANGE FREQUENCY 6 45 78 9 3 2 10 1 11 0 12 ACCENT ON 14 15 KEYFOLLOW 12 dB 24 dB 16 22 17 6 45 78 9 3 2 10 1 11 0ATTACK 12 25 6 45 78 9 3 2 10 1 11 0DECAY12 23 26 6 45 7 8 9 3 2 10 1 11 0RELEASE 12 27 33 34 35 MIDI ANALOG SYNTHESIZER RANDOM NOISE 5 6 7 8 4 EXT. 3 9 2 10 1 11 0 12 WAVE MODULATION 6 45 7 8 9 3 2 10 1 11 0 12 SUSTAIN 30 24 ProTone SPECTRAL AUDIO FILTER 28 VCO 1 VCO 2 CUTOFF PAN PW 1 LFO ON ... 6 45 7 8 9 3 2 10 1 11 0 12 ENV MOD 29 1 6 45 78 9 3 2 10 1 11 0 12 GROUNDLEVEL 0 POWER GATE / LEARN C1 21 2 3 3 4 4 5 5 L R PAN 31 LEARN 32 Front Panel Controls VCO 1: 1. TUNE: Regulates the pitch of the VCO 1 2. PW: Pulse width of the rectangular pulse 3. Changeover between the signal types saw tooth, noise and rectangle 4. SLIDE: regulates the time balance of VCO 1 and VCO 2 VCO 2: 5. TUNE: Regulates the pitch of the VCO 2 6. SYNC: Synchronises VCO 2 with VCO 1 7. Changeover between the signal types saw tooth, external (input on rear of housing) and rectangle Mixer: 8. VOL VCO 1: Volume of VCO 1 9. RINGMOD: Volume of the ring modulation of VCO1 and VCO2 10. VOL VCO 2: Volume of VCO 2 VCF: 11. CUTOFF: Cut-off frequency of the filter 12. RESONANCE: increases the harmonics at the cut-off point 13. Changeover between lowpass and highpass 14. ACCENT: Pulsed increase of the cut-off frequency and the volume 15. ACCENT ON Indicator: Lights when the accent function is switched on (MIDI Controller 65) 16. Determines the edge steepness of the filter: 12 or 24dB / octave 17. KEYFOLLOW: The cut-off frequency is influenced by the actual note LFO: 18. RANGE: Changeover between three LFO frequency ranges 19. FREQUENCY: Setting the LFO frequency 20. LFO Indicator: Indicates each positive half wave of the LFO. Note: The eye recognises frequencies larger than 60 Hz as being static. 21. Changeover between symmetrical and asymmetrical LFO waveforms 22. Selector switch for different LFO waveforms. By means of the matrix presentation, there are a total of 9 signal forms available: sinus, asymmetrical sinus, triangle, saw tooth, rectangle, pulse, random, noise and external (input on the rear of the housing) 23. MODULATION: Determines the strength of the LFO influence 24. LFO ON..: LFO assignment possibilities: VCO 1, VCO 2, PW 1, cut-off, pan (any combination possible) Envelope: 25. ATTACK: Rise time 26. DECAY: Decay time 27. SUSTAIN: Hold level 28. RELEASE: Release time 29. ENV MOD: Influences the cut-off frequency with the envelope Stereo VCA: 30. GROUNDLEVEL: Ground level of the unit. This also includes the volume increase influenced by the accent. 31. PAN: Regulates the relationship of the volume from the left and right-hand channel Various: 32. LEARN Key; Switches the ProTone to the learn mode 33. GATE / LEARN indicator 34. Switch-on indicator 35. Main switch Service Manual ProTone Page 4 of 20 © 1996-2001 Spectral Audio 2 Functional Description The basic principle of the ProTone corresponds to the tried and tested analog synthesizer principle with VCO, VCF, VCA, envelope generator and LFO. This principle is called subtractive synthesis. In order that the ProTone is suitable for MIDI, an additional MIDI to CV converter is necessary which converts the MIDI signals into analog signals with which the VCOs, the filter, as well as the envelope generator are controlled. The raw material for the sound is offered by the VCOs (Voltage Controlled Oscillator) in the form of a sawtooth or rectangular signal as well as the noise generator (for effects such as wind and thunder sounds). The width of the rectangular signal from VCO1 can be changed with the PW regulator (2). The narrower the rectangular signal (regulator turned to the right), the 'sharper' the sound. VCO2 is synchronised from VCO1 with the SYNC switch (6). The tone will be interesting in this case when the TUNE regulator (5) of VCO2 is turned (or by modulating with the LFO VCO 2), which results in a typical "Sync-Sound". By means of the external VCO input, other sounds can also serve as raw material. The ring modulator multiplies the signals of the two VCOs which markedly amplifies the beat (frequency difference). Note: When the SYNC switch (6) is switched on, no beats are developed and the ring modulator has therefore no effect. The SLIDE regulator (4) determines the time balance from one note to another and is valid for both VCOs. Afterwards, the signal flows through the voltage controlled filter (VCF=Voltage Controlled Filter), within which certain frequency ranges are suppressed. The lowpass filter allows low frequencies to pass and suppresses the high ones, the highpass filter lets high frequencies through and suppresses the low ones. The frequency from which the signals are suppressed is called the limit or cut-off frequency. With the ProTone, this is formed from various sources: 1. CUTOFF frequency regulator (11) 2. ENV MOD regulator (29) (influence of the envelope on the cut-off frequency) 3. LFO 4. ACCENT regulator (14) 5. KEYFOLLOW switch (17). With the KEYFOLLOW switch (17), the cut-off frequency increases on higher notes so that audible frequency bands always remain the same. The resonance forms a feedback of the output to the input of the filter and causes an amplification of the frequencies around the cut-off frequency. The ACCENT regulator (14) sets the share of the second envelope and affects the cut-off frequency as well as the volume. It is only active when the ACCENT indicator (15) lights, i.e., when the accent function is switched on via the MIDI controller 65. The accent function is always active when the unit is switched on. By means of the MIDI controller 65, it is now possible, as with the TB 303, to give individual notes an accent (value 127) or to take an accent away (value 0). For this purpose, the corresponding control value must be sent in the sequencer, timed either before or with the note. Before the signal leaves the ProTone, it arrives at the VCA (Voltage Controlled Amplifier) which is available in the ProTone in stereo form. Here the input signal is multiplied with a control signal. In this way, the volume can be influenced by a control signal which comes from the envelope generator and the MIDI converter. The volume of the ProTone is controlled with the GROUND LEVEL regulator (30) as well as via the MIDI controller EXT (7). Additional to this level is the short-term increase through the accent function. The panorama (volume relationship of the left-hand to the right-hand signal) can be set with the PAN regulator (31). The LFO is particularly developed with the ProTone. Using its signal, the pitch from VCO1 and VCO2, the pulse width of the rectangular signal from VCO1, the cut-off frequency of the filter as well as the panorama can be modulated with the LFO ON ... switches (24). With switches (21) and (22) selection can be made between 9 different signal forms. By means of the external LFO input on the rear of the housing, it is also possible to use any other signal for modulation. To do this, switch (22) must be turned completely to the right. A microphone, etc, must be connected via a pre-amplifier as this is a high level input. When the external inputs of the ProTone are used, the ProTone must simultaneously receive a note command (the same MIDI channel) in order that something is audible. The envelope generator determines the chronological sequence of the volume after receiving a note command. The MIDI to CV converter then gives out a gate signal (+5V) with which the sequence of the envelope generator begins. The gate signal remains at +5V until the 'note off' command comes, i.e., the key is Service Manual ProTone Page 5 of 20 © 1996-2001 Spectral Audio released. The parameters of the envelope can be set with regulators (25) to (28). How the envelope should be imagined is described later on in the glossary. Service Manual ProTone Page 6 of 20 © 1996-2001 Spectral Audio 3 History of Series There where 3 different series made: Serie # 1 : 960000 .. 960020 with golden front panel Serie # 2 : 960021 .. 960161 with red front panel, C66 and C67 added Serie # 3 : 960162 .. 960470 with red front panel, now with switch and trafo for 115V / 230V; R173, R174, C63-C65 inbuilt; R174 and R175 (NTCs) added (by hand); GND Connection to case This manual describe the last serie. This manual contains no the hole schematics. Spectral Audio may send it to you for important reasons, please write to info@spectralaudio.ch. 4 Improvements and explanations 4.1 Sense of R174 and R175 These two resistors helps to increase the lower limit of the cutoff frequency. Otherwise a ploopnoise may occur when reaching 0 Hz cutoff frequency with a high resonance. You may reach the 0Hz using the LFO. They are in serie connected from U20 pin 16 to GND. 4.2 Sense of C63 – C65 With time, the pots may become noisy. You may hear this effect especially at the Cutoff pot. Using the C63 – C65 solve this problem. They are connected from the middle pin (+) of the pot to GND (-). Resonance has negative voltage, so middle pin is (-) and GND is (+): Service Manual ProTone Page 7 of 20 © 1996-2001 Spectral Audio 4.3 Sense of R174 and R175 These NTC resistors improves the temperature stability of the two VCOs a lot. It is important that, if you add these NTCs, also change the resistors R81 and R86 to 5k1. Use hot glue to glue them onto U16. Sold them parallel to R81 and R86: After this change, a readjustment must be done. 4.4 Hum Problems In some circumstances, the internal connection from GND to the metal case creates a hum noise because of closed earth loops. In this case it may help to cut this internal GND connection. You will find it (on later Proton's series only) on the digital pcb, a pretty wide track to one screw. Cut it with a sharp cutter. 4.5 Increasing the Gate voltage to +12V To increase the Gate voltage from +5V to +12V, two additional resistors and one NPN transistor are necessary. Apart from this, port 1.3 (pin 4) of the microprocessor must be connected to GND that the gate signal output from the microprocessor is inverted. The circuit change appears as follows: Service Manual ProTone Page 8 of 20 © 1996-2001 Spectral Audio 5 Adjustment of the ProTone 5.1 Digital PCB (MIDI to CV converter) The slope of the control voltage CV is set with trimmer R10. Octave jumps which are initiated via MIDI-IN, must result in a 1.00 V change. For this purpose, an accurate voltmeter must be connected to the CV socket J3 and the reference note (default: 36=C1) initiated and the voltage value noted (some mV). Now initiate the MIDI note four octaves higher (C4) and adjust R10 so that the voltage is 4.00 V higher. Check the reference note again and repeat the adjustment if necessary. 5.2 Analog PCB (VCO1 and VCO 2) In order to tune the VCOs, the analog PCB must first be separated from the front panel (6 screws with spacers). The analog PCB must then be reconnected to the digital PCB and started. After disassembly, the Tune VCO1 and Tune VCO2 knobs must be replaced and positioned exactly in the centre (Tune setting = 0). Before adjustment, the unit should be in operation for approximately one hour. The adjustment should be made at room temperature. Before adjusting the VCO, check the CV slope (chapter above). The setting of R10 in the MIDI to CV converter is valid for both VCO of course. 5.2.1 VCO1 The frequency of the oscillator can be taken from pin 8 of U11 or at the unit output, whereby the filter must be open and set to Lowpass. Only VCO1 must be audible (set the mixer correctly). Make sure that no LFO modulation take place. The offset for VCO1 is set with R21 and the slope with R157. Nonlinearity in the upper frequency range is adjusted with R29. Proceed as follows to make the adjustment: 1. Set trimmers R21, R157 and R29 to the base settings shown below. 2. Set the ProTone MIDI reference note to C1 by pressing the learn-key. 3. Press key A3 and set the VCO1 frequency with R21 to 220.00 Hz, measured with an exactly frequency meter. 4. Press key A1 and set the frequency to 55.00 Hz with R157. 5. Repeat steps 3 and 4 until frequency values are stable. 6. Press the key A5 and set the frequency to 880.0 Hz with R29. 7. Repeat steps 3 to 6 and re-adjust if necessary. 5.2.2 VCO2 The offset for VCO2 is set with R131 and the slope with R156. Nonlinearity in the upper frequency range is adjusted with R132. Proceed as follows to make the adjustment: 8. Set trimmers R131, R156 and R132 to the base settings shown below. 9. Set the ProTone MIDI reference note to C1 by pressing the learn-key if not done yet. Service Manual ProTone Page 9 of 20 © 1996-2001 Spectral Audio 10. Press key A3 and set the VCO2 frequency with R131 to 220.00 Hz, measured with an exactly frequency meter. 11. Press key A1 and set the frequency to 55.00 Hz with R156. 12. Repeat steps 3 and 4 until frequency values are stable. 13. Press the key A5 and set the frequency to 880.0 Hz with R132. Check here if no beats are audible with VCO1 open, too. If so, adjust R132 in that way that no beats are audible. 14. Repeat steps 3 to 6 and re-adjust if necessary. 15. done! Service Manual ProTone Page 10 of 20 © 1996-2001 Spectral Audio 6 Digital PCB 6.1 Assembly plan 6.2 Part list Resistors R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 Metal Film Resistor, 1%: 220 220 220 1k 10k 10k 1k 47k 47k 2k 10k 10k 220 10k 1K Service Manual ProTone Trimmer 100R 4k7 24k 30k 62k 91k 100k 300k 1M Page 11 of 20 © 1996-2001 Spectral Audio Capacitors C1 100p C2 10u C3 100n C4 100n C5 100n C6 100n C7 100n C8 10u C9 1000u/25V C10 100n C11 1000u/25V C13 10u C14 10u C15 100n C16 22p C17 22p C56 10u C66 2.2u C67 2.2u Kind Foil Elko Ker Ker Ker Ker Ker Elko Elko Ker Elko Elko Elko Ker Ker Ker Elko Elko Elko Gird [mm] 5 2 2.54 2.54 2.54 2.54 2.54 2 5 2.54 5 2 2 2.54 2.54 2.54 2 2 2 Dimensions [mm] 2.5 x 7.2 d=5 3.2 x 5.1 3.2 x 5.1 3.2 x 5.1 3.2 x 5.1 3.2 x 5.1 d=5 d=12.5 3.2 x 5.1 d=12.5 d=5 d=5 3.2 x 5.1 2x5 2x5 d=5 d=5 d=5 Semiconductors Q1 TL 431 CLP D1 1N4148 D2 1N4148 D3 1N4148 D4 DF 02 M D13 1N4148 U1 CNY17-3 / SFH 601-3 U2 TL 074 CN U3 24C01/02 CB U4 P80C32 / SAB-C501-LP U5 MAX 512 CPD U6 27C64 Q200 U7 LM 2940CT-12 U8 74HC573 N U9 LM 7805 U10 LM 7912 Various Socket for U6 28 pin assemble with EPROM "ProTone V1.04" QZ1 12 MHz (HC 49) T1 BV 030-7010.0 L Transformer S16 V20212MS02Q C&K J1 DIN 5pol Socket J2 DIN 5pol Socket J3 Jack Socket 6,3mm J4 Jack Socket 6,3mm J5 Jack Socket 6,3mm J6 Jack Socket 6,3mm J7 Jack Socket 6,3mm J8 Jack Socket 6,3mm J9 PCB-Plug 4.8 x 0.8 mm J10 PCB-Plug 4.8 x 0.8 mm J11 Plug Connector 18 pole angular Service Manual ProTone Page 12 of 20 © 1996-2001 Spectral Audio W1 Plug Ledge 3 pole W2 Plug Ledge 3 pole Jump1 Jumper 2.54 mm Jump2 Jumper 2.54 mm assemble on W1 "Out" assemble on W2 "Out" 7 Analog PCB 7.1 Assembly plan Service Manual ProTone Page 13 of 20 © 1996-2001 Spectral Audio Service Manual ProTone Page 14 of 20 © 1996-2001 Spectral Audio 7.2 Part list Resistors R16 R17 R18 R19 R20 R21 R22 R23 R24 R25 R26 R27 R28 R29 R30 R31 R32 R33 R34 R35 R36 R37 R38 R39 R40 R41 R42 R43 R44 R45 R46 R47 R48 R49 R50 R51 R52 R53 R54 R55 R56 R57 R58 R59 R60 R61 R62 R63 R64 R65 1M 100K * 270K * 220K 47K 100K 100K 100K 100K 100K 10K 15K 1K 10K 4K7 10K 1M 1M 300K 2K2 390 2K2 470 220 10K 1K 91K 15K 10K 91K 10K 15K 10K 10K 15K 24K 47K 100K * 10K 100 100 4K7 10K 30K 100 24K 2K2 1K 4K7 10K Trimmer Trimmer Service Manual ProTone Page 15 of 20 © 1996-2001 Spectral Audio R66 R67 R68 R69 R70 R71 R72 R73 R74 R75 R76 R77 R78 R79 R80 R81 R82 R83 R84 R85 R86 R87 R88 R89 R90 R91 R92 R93 R94 R95 R96 R97 R98 R99 R100 R101 R102 R103 R104 R105 R106 R107 R108 R109 R110 R111 R112 R113 R114 R115 R116 R117 R118 R119 R120 R121 22 470K 100K 47K 470K 1M 470K 10K 10K 10K 1K 100K * 100K * 100K * 220K 5k1 * 100 * 1M * 1M * 100 * 5k1 * 10K 10K 100K * 180K 470K 2M2 470 2M2 220K 220K 24K 300K 62K 24K 300K 470K 100 100 4K7 24K 10K 100 2K2 1K 4K7 10K 220K 47K 100K 4K7 390 390 270K * 1M 1K Service Manual ProTone Page 16 of 20 © 1996-2001 Spectral Audio R122 R123 R124 R125 R126 R128 R129 R130 R131 R132 R133 R134 R135 R136 R137 R138 R139 R140 R141 R142 R143 R144 R146 R147 R148 R149 R150 R151 R152 R153 R154 R155 R156 R157 R158 R159 R160 R162 R163 R164 R165 R166 R167 R168 R169 R170 R171 R172 R173 R174 R175 R176 4K7 15K 10K 100K 100K 47K 1K 24K 100K 10K 300K 120K 100K 100K 100K 30K 100K 220 180K 10K 470 470 15K 1K 1K 4K7 10K 24K 300K 10K 47K 100 1K 1K 30K 1K 470K 470 15K 1K 1K 24K 1K 47K 100K 100K 15K 15K 10M 4M7 NTC 68k NTC 68k Trimmer Trimmer Trimmer Trimmer mounted with hot glue on U16 parallel to R81 mounted with hot glue on U16 parallel to R86 * must be a Metal Film Resistor, 1% P1 47K LIN TUNE VCO1 Service Manual ProTone Solder Temp. 235 Grad Celsius max, Page 17 of 20 © 1996-2001 Spectral Audio P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12 P13 P15 P16 P17 P18 P19 P20 47K LIN 47K LIN 47K LIN 47K LIN 10K LOG 47K LIN 10K LOG 47K LIN 1M LOG 47K LIN 47K LIN 47K LIN 1M LOG 1M LOG 47K LIN 1M LOG 47K LIN 47K LIN Capacitors C18 C19 C20 C21 C22 C23 C24 C25 C26 C27 C28 C29 C30 C31 C32 C33 C34 C35 C36 C37 C38 C39 C40 C41 C42 C43 C44 C45 C46 C47 C48 C54 C55 C57 C58 C59 3.3n 100p 100p 22p 470p 470p 4p7 1u 47n 470p 470p 47n 100n 100n 100p 100n 100n 22p 100n 470p 470p 4p7 470n 47u 1n 1u 47n 100n 470p 3.3n 2.2u 10u 100p 100n 100n 100n PW VCO1 VOL VCO1 CUTOFF RESONANZ F LFO MOD LFO LEVEL VOL RING SILDE TUNE VCO2 VOL VCO2 ACCENT ATTACK DECAY SUSTAIN RELAISE ENV MOD PAN Kind Foil Foil Foil Ker Foil Foil Ker Foil Foil Foil Foil Foil Ker Ker Foil Ker Ker Ker Ker Foil Foil Ker Foil Elko Ker Elko Foil Ker Foil Foil Elko Elko Foil Ker Ker Ker Service Manual ProTone solder time max. 5 sec Gird [mm] 5 5 5 2.54 5 5 2.54 5 5 5 5 5 2.54 2.54 5 2.54 2.54 2.54 2.54 5 5 2.54 5 2 2.54 2 5 2.54 5 5 2 2 5 2.54 2.54 2.54 Dimensions [mm] 2.5 x 7.2 2.5 x 7.2 2.5 x 7.2 1.8 x 3.5 2.5 x 7.2 2.5 x 7.2 1.8 x 3.5 6 x 10.5 2.5 x 7.2 2.5 x 7.2 2.5 x 7.2 2.5 x 7.2 3.2 x 5.1 3.2 x 5.1 2.5 x 7.2 3.2 x 5.1 3.2 x 5.1 1.8 x 3.5 3.2 x 5.1 2.5 x 7.2 2.5 x 7.2 1.8 x 3.5 6 x 10.5 d=10 1.8 x 3.5 d=5 2.5 x 7.2 3.2 x 5.1 2.5 x 7.2 2.5 x 7.2 d=5 d=5 2.5 x 7.2 3.2 x 5.1 3.2 x 5.1 3.2 x 5.1 Page 18 of 20 Producer WIMA WIMA WIMA Phillips WIMA WIMA Philips EVOX EVOX WIMA WIMA EVOX WIMA Philips WIMA WIMA Philips EVOX Philips WIMA WIMA WIMA © 1996-2001 Spectral Audio C60 C61 C62 C63 C64 C65 1u 1u 1u 1u 1u 1u Elko Elko Elko Elko Elko Elko 2 2 2 2 2 2 d=5 d=5 d=5 d=5 d=5 d=5 Semiconductors Q2 BC 556 B Q3 BC 546 B Q9 BC 546 B Q10 BF 245 B Q11 BC 546 B Q17 BC 556 B Q18 BC 556 B Q19 BC 546 B Q20 BC 556 B Q21 BC 546 B Q22 BC 546 B Q23 BC 546 B Q24 BC 556 B Q25 BC 556 B Q26 BC 556 B D7 D8 D9 D10 D11 D12 D14 D15 D16 1N4148 1N4148 1N4148 1N4148 1N4148 1N4148 1N4148 1N4148 1N4148 DL1 DL2 DL3 DL4 2.5 x 5mm 2.5 x 5mm 2.5 x 5mm 2.5 x 5mm Green Red Red Red Assemble with 8 mm spacer (Total 17mm) Assemble with 8 mm spacer (Total 17mm) Assemble with 8 mm spacer (Total 17mm) Assemble with 8 mm spacer (Total 17mm) U11 TL 074 CN U13 TL 074 CN U14 TL 072 CN U15 TL 074 CN U16 CA 3046 U17 TL 074 CN U18 XR 2208 CP U20 LM 13700 N U21 LM13700 N U22 TL 074 CN U23 TL 074 CN U24 LM13700 N U25 LM13700 N U26 CD 4001 BCN Various Service Manual ProTone Page 19 of 20 © 1996-2001 Spectral Audio S1 E103-SD1CBE S2 E201-SD1CBE S3 E103-SD1CBE S4 PVA1-EE S5 PVA1-EE S6 PVA1-EE S8 E101-SD1CBE S9 E101-SD1CBE S10 PVA1-EE S11 PVA1-EE S12 PVA1-EE S13 E103-SD1CBE S14 PVA1-EE S15 PVA1-OA SW1 56P36-01-1-06N J12 Connector 18 pole (Socket) 1pole on-off-on Toggle Switch 2pole on-on Toggle Switch 1pole on-off-on Toggle Switch 1 pole on-off Push-Push Switch 1 pole on-off Push-Push Switch 1 pole on-off Push-Push Switch 1pole on-on Toggle Switch 1pole on-on Toggle Switch 1 pole on-off Push-Push Switch 1 pole on-off Push-Push Switch 1 pole on-off Push-Push Switch 1pole on-off-on Toggle Switch 1 pole on-off Push-Push Switch 1 pole on-off Momentary Switch C&K C&K C&K ITT ITT ITT C&K C&K ITT ITT ITT C&K ITT ITT 6 pole Rotary Switch Grayhill mounted on Solder Side 8 Mechanical part list Pcs. Part 1 Front Panel 1 Chassis 1 Backside 4 Screw M3 x 5mm with counter bore head black 5 Cylinder head screw M3 x 5mm black 1 Nut M3 for grounding 1 Washer for grounding 8 Sheet metal screw 2.9 x 6.5mm black 6 Sheet metal screw with counter bore head 2.9 x 22mm black 6 Spacer 14 mm 2 Spacer 25 mm metal with thread M3 1 Analog PCB assembled 1 Digital PCB assembled 6 Nuts for Phone Jack 19 Knobs 18 splines 1 Knob "D" Shape 1/8" 1 Inlet IEC Socket with Fuse Box 1 Fuse 250mA 1 Cable blue with thimbles 4.8mm 2 Cable brown with thimbles 4.8mm 1 Cable yellow-green with thimbles 1 Power switch 1 pole with 4.8mm terminals Service Manual ProTone Page 20 of 20 © 1996-2001 Spectral Audio
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