AP211841 Cambridge Azur 840C CD Player Service Manual Audio SM
User Manual: Azur 840C
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840C Issue Date: 07th February 2007 SERVICE MANUAL SPECIFICATIONS: D/A Converters Digital Filter Analog Filter Dual Analog Devices AD1955 24 bit DAC’s Analog Devices Black Fin ADSP-BF532 32 bit DSP Performing ATF™ Up sampling to 24 bit 384 kHz 2 Pole Fully Differential Linear Phase Bessel Filter Total correlated jitter <130pS Crosstalk @1kHz <-130dB Crosstalk @20kHz <-114dB Output impedance <50 ohms Digital input word widths supported 16-24 bit Digital output word widths supported 16, 20, 24 bit Frequency Response 20Hz – 20kHz (+\-0.1dB) Digital input sampling frequencies supported 32kHz, 44.1kHz,48kHz,88.2kHz 96kHz, 176.4kHz, 192kHz THD @ 1 KHz 0dBFs <0.0005% Digital output sampling frequencies supported 32 kHz – 192 kHz pass through (including 44.1 kHz for CD) 48 kHz, 96 kHz, 192 kHz up sampled THD @ 1Khz -10dBFs <0.0004% Audio output up sampling Fixed 24 bit, 384kHz THD @ 20 KHz 0dBFs <0.0007% Dimensions (H x W x D) 115 x 430 x 360 mm (4.5 x 16.9 x 14.7”) IMD (19/20 kHz) 0dBFs <0.0002% Weight 8.5kg (18.7lbs) Linearity @ -90dBFs +/- 0.5dB Stopband Rejection (>24 kHz) > 120dB S to N ration, A weighted >113dB AP21184/1 Gallery Court Hankey Place London SE1 4BB UK Tel: +44 (0)20 7940 2200 Fax: +44 (0)20 7940 2233 1 840C SERVICE MANUAL TABLE OF CONTENTS Safety Precautions & Important Notes 3 Laser Safety Precautions 4 Exploded Diagram 5 Exploded Diagram Parts List 6 Functional Block Diagram 7 Front Panel Circuit Diagram 8 Front Panel PCB Layout (Top Side) 9 Front Panel PCB Layout (Bottom Side) 10 Front Panel PCB BOM 11 Servo Circuit Diagram (DAC) 12 Servo Circuit Diagram (Servo) 13 Servo PCB Layout (Top Side) 14 Servo PCB Layout (Bottom Side) 15 Servo PCB BOM 16-17 Voltage Select Switch Circuit Diagram 18 Voltage Select Switch PCB Layout (Top Side) 19 Voltage Select Switch PCB Layout (Bottom Side) 20 Voltage Select Switch PCB BOM 21 DAC DSP Circuit Diagram (Abus) 22 DAC Test Signals (Main Signal Paths General) 23 DAC DSP Circuit Diagram (DSP) 24 DAC Test Signals (Main Signal Paths General) 25 DAC DSP Circuit Diagram (Filters) 26 DAC Test Signals (Main Signal Paths Left Channel) 27-28 DAC Test Signals (Main Signal Paths Right Channel) 29-30 DAC DSP Circuit Diagram (Supply) 31 DAC DSP Circuit Diagram (Flash) 32 DAC DSP Board Layout (Top Side) 33 DAC DSP Board Layout (Bottom Side) 34 DAC DSP PCB BOM 35-37 Mains PCB Circuit Diagram 38 Mains PCB Board Layout (Top Side) 39 Mains PCB Board Layout (Bottom Side) 40 Mains PCB BOM 41 IC Pin Layout Details 42-50 Circuit Description 51 Software Instructions 52-61 2 SAFETY PRECAUTIONS & IMPORTANT NOTES 1. Check that the rear of the product indicates the correct supply voltage for your area. 2. The lighting flash with the arrowhead within an equilateral triangle is intended to alert the user or service agent to the presence of dangerous voltages within the product enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. 3. The exclamation point within an equilateral triangle is intended to alert the user or service agent to the presence of important operating and maintenance (Servicing) instructions in the literature accompanying the appliance. 4. This product complies with EEC Low Voltage (73/23/EEC) and Electromagnetic Compatibility (89/336/EEC) Directives when used and serviced in accordance with this manual. For continued compliance all components marked safety and EMC critical must only be replaced by Cambridge Audio approved parts. 5. Any unauthorised design alterations or additions will void the manufacturer’s warranty; furthermore the manufacturer cannot accept responsibility for personal injury or property damage resulting therefrom. 6. When servicing, care should be taken to observe the original routing and dressing of the leads and it should be confirmed that they have been returned to normal after re-assembly. Notes on chip component replacement Never reuse a component that has been removed from a PCB Notice that the minus side of a tantalum capacitor may be damaged by heat COPYRIGHT NOTICE. © 2007 Audio Partnership PLC. All rights reserved. Cambridge Audio and Azur are registered trademarks for Audio Partnership PLC. This document may not be reproduced, distributed, transmitted, displayed, published, or broadcast without the express written prior permission of Audio Partnership PLC. Alteration or removal of any trademark, copyright, or other notice from this content is prohibited. Information provided in this document is provided solely for the use of official service agents in repairing and servicing Audio Partnership PLC products. 3 LASER SAFETY PRECAUTIONS Caution: These labels may be attached to the unit on the rear and inside to inform that it contains a laser component. Use of controls or adjustments, or performance of procedures other than those specified within the service or instruction manual may result in hazardous radiation exposure. CLASS 1 LASER PRODUCT WARNING! 1. Service should only be performed by qualified personnel. 2. This equipment has been designed and manufactured to meet international safety standards; it is the legal responsibility of the repairer to ensure that these safety standards are maintained. 3. Any repairs must be made in accordance with the relevant safety standards. 4. It is essential that safety and EMC critical components are replaced with Cambridge Azur approved parts only. NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electrostatic breakdown because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic breakdown and also use the procedure in the printed matter which is included in the repair parts. The flexible board is easily damaged and should be handled with care. NOTES ON LASER DIODE EMISSION CHECK The laser beam on this model is concerated so as to be focused on the disc reflective surface by the objective lens in the optical pick-up block. Therefore, when checking the laser diode emission, observe from more than 30cm away from the objective lens. 4 To enhance viewing, please print to A3 Exploded Diagram Cambridge Audio Azur 840C CD Player 5 A P P ar t PY1228 PY1229 PY1218 PY1219 PY1127 PY1128 PY1110 PY1217 PY940 PY941 PY1220 PY1221 PY1222 PY1223 PY1224 PY1225 PY1226 PY554 PY568 PY1122 PY1124 PY1165 PY1227 D r a wing R e f. 1 1 2 2 3 3 4 5 6 Not Shown 7 7 8 9 9 10 11 12 12 13 13 14 Not Shown 5100-840100E100 9805-084000E001 6074-150004E000A01 6074-150004E000 6564-010006-000A01 6564-010006-000-01 9484-001000E181 9484-001000E041 6574-010002E000A01 6574-010002E000-01 4006-840001E000 8584-001000E301 8584-001010E301 3009-110000-002 9692-006002-201 3200-080551E000 4006-840058E001 6574-150013E000A01 6574-150013E000-01 6574-010003E000-02 6574-010003E000-01 7003-008010E001 7003-008010E006 F a ct or y R e fe r e nce D e s c r i pt i o n Exploded Diagram Parts List Azur 840C Multilingual User Manual (AP18655*) Azur 840A/C Remote Control Assy Rev A Azur 840A Plastic Foot (Silver) AP16837* Azur 840A Plastic Foot (Black) AP16837* Azur 640C.S CD Door W/Silkscreen PMS Cool Grey 7C Azur 640C.B CD Door W/Silkscreen PMS Cool Grey 7C Azur-840C Servo PCBARev A Azur-840C Control PCB Assy Rev A Azur 840C Front Panel-S Artwork (Print Coll Grey 8C) Silver Azur 840C Front Panel -B Artwork (Print Cool Grey 7C) Black Azur 840C Display Module MBCF00003B00V0 Azur 840C UK/EU Silver Front Panel Assy Azur 840C UK/EU Black Front Panel Assy V2 CD Sanyo Laser DA11V Azur V2 CD Mechan assy with Sanyo DA11V Rev A Transformer AC115/230V T08055A Azur-840C 840C DAC Module Azur 840A Side Panel, Silver Azur 840A Side Panel, (Black) Azur 840C Top Panel (Silver) Azur 840C Top Panel (Black) Screw M3*8 M/C 1/K Torx Recess BLK-PT (Black) Screw M3*8 M/C 1/K Torx Recess ZN-PT (Silver) Exploded Drawing Parts List Cambridge Audio Azur 840C CD Player 6 SPDIF TO LOGIC LEVEL U23 ME C H LOGIC TO SPDIF LEVEL U6 OPTICAL CN5 COAX U10 CN4 COAX OPTICAL SPDIF TO LOGIC LEVEL U23 OPTICAL PSU U9 U7 44.1/48/96/192 kHz 44.1 kHz FROM CD SERVO SE RV O PC B 44.1 kHz FROM CD SERVO U8 48/96/192 kHz UP/DOWN SAMPLED PASS THRO' SETTING SPDIF RX MCLK DIGITAL POT U4 U5 LCD AUDIO DATA LEFT AUDIO DATA LEFT MICRO TO LCD (DOT MATRIX) U2 RELAY WDCLK BITCLK SDATA L RESET MUTE U19 U20 DAC2 MCLK DAC SET UP I/F WDCLK BITCLK SDATA L RESET MUTE DAC CONTROL I/F DAC1 MCLK MICROCONTROLER (PIC) MICROCONTROLLER/DSP INTERFACE DSP FLASH ADDRESS & DATA FLASH MEMORY U131 U130 RS232 (LOGIC LEVELS) MICRO TO LCD (DOT MATRIX) U34 I TO V FRONT PANNEL BUTTONS MODULATED IR U37 U38 U33 I TO V CURRENT SOURCE CIRCUIT U53 Q3 Q5 I TO V I TO V CURRENT SOURCE CIRCUIT U52 Q7 Q9 RL1 RL2 RL3 Q2 Q4 Q8 DAC DAC OEI (PIC MUTE) AUDIO O/P MUTE CIRCUIT Functional Block Diagram DRAWER SPEED CONTROL DRAWER OPEN CLOSE CONNECTIONS U13 U32 KEY COMMANDS TO SERVO (DIGITAL POT FOR RES LADDER I/P) CD SERVO TO LCD CONNECTIONS U3 WDCLK BITCLK SDATA L (SPDIF SUBCODE DATA) U BIT RESET SPDIF TX SET UP I/F WDCLK BITCLK SDATA L (SPDIF SUBCODE DATA) (SPDIF SUBCODE DATA) C BIT U BIT RESET SPDIF RX SET UP I/F DSP CLK SPDIF I/P SWITCHING CONTROL AUDIO DATA L&R SPDIF TRANSMITTER U12 AUDIO DATA L&R SPDIF RECEIVER U11 K1 K2 I/P SPDIF TX CLK 44.1 kHz FROM CD SERVO 44.1 kHz PASS THRO' SETTING SPDIF TX CLK SPDIF RX MCLK DAC2 MCLK DAC1 MCLK DSP CLK DRAWER OPEN CLOSE CONNECTIONS CD SERVO TO MECH CONNECTIONS SPDIF I/P SWITCHING SPDIF I/P SWITCHING CLOCK + BUFFER 24.576 MHz X1 U15 To enhance viewing, please print to A3 MECH AND SERVO PCB SPDIF O/P SPDIF I/P 2 U5 SPDIF I/P 1 CN3 COAX U4 DAC PCB Cambridge Audio Azur 840C CD Player U35 U1 FRONT PANEL IR MOD U1 U2 U3 Q1 U28 U50 CN13 IR UNMOD RS232 I/P IR MOD FROM REMOTE I/P IR MOD O/P I/P BALANCED O/P CN14 UNBALANCED O/P CN12 UNBALANCED O/P BALANCED O/P FRONT PANEL PCB DIFFERENTIAL TO SINGLE ENDED DIFFERENTIAL FILTER/AMP RIGHT CH DC SERVO CIRCUIT U46 U39 U40 DIFFERENTIAL TO SINGLE ENDED DIFFERENTIAL FILTER/AMP LEFT CH DC SERVO CIRCUIT U41 7 SERVO RESET 1 PAD EMC M3 P1 1 PAD EMC M3 P2 1 PAD EMC M3 P3 1 PAD EMC M3 P4 1 PAD EMC M3 P5 1 2 3 4 5 6 7 CONN-H7 CN1 10OR CONN-H7 CN4 1 2 3 4 5 6 7 8 R7 C17 C20 C1 1 2 3 4 C16 1nF C15 1nF 100R 1nF 1nF 1nF C21 100nF C12 16 8 L1 DS1803 GND VCC L0 W1 SCL SDA A1 A0 H0 W0 H1 +8V A2 1 4 3 U3 +5V_SERVO LCD 100nF 8 7 6 5 C2 LCD 740C NC COM4 COM3 COM2 COM1 SEG18 SEG17 SEG16 SEG15 SEG14 SEG13 SEG12 SEG11 SEG10 SEG9 SEG8 SEG7 SEG6 SEG5 SEG4 SEG3 MCLR C22 GP1 GP2 GP4 PIC12C508 Vss GP0 Vdd CLKIN U4 +5V_SERVO 1n 50V X7R 1n 50V X7R SEG1 SEG2 To enhance viewing, please print to A3 To Servo Board COM1 COM2 COM3 COM4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 1N4004 D7 SEG0 COM4 COM3 COM2 COM1 LCD Connector 1 100nF BZX79C5V1 500MW CN10 1 2 3 4 5 6 7 +8V C19 680R R33 680R R34 1N4004 D3 CN3 1 2 3 4 5 6 7 8 MGND MGND 1N4004 D6 BZX79C5V1 500MW CONN-H8 R8 REMOTE +5V GND K1 K2 POWER DETECT RESET IR OUT 1 2 3 4 5 CONN-H8 1 2 3 4 5 CN2 DATA From Servo Board (LCD) TO MECH DRAWER OPEN/CLOSE (SPI) CN8 DATA CN9 FROM SERVO BOARD DRAWER OPEN/CLOSE (SPI) 1N4004 D5 C18 D4 10U 16V D2 CN5 1 Vss 2 Vo 3 R/W 4 D0 5 D2 6 D4 7 D6 8 LED K R14 R17 R METAL 1/8W 4k7 1/8W Metal Film 1K2 R METAL 1/8W 4k7 1/8W Metal Film +5V_SERVO R16 ON/OFF CONN-8HEAD DUAL BOT 1a 2a 3a 4a 5a 6a 7a 8a LED A LCD Connector 2 300R R10 PRE MULTI 500R 2 R11 +5V 56R 56R BC337 R3 Q4 10U 16V C7 +5V LED R4 BC337 Q3 100nF C4 9 8 7 SPI CS 6 SPI CLK 5 SPI DATA TX 4 SPI INT 3 SPI DATA RX 2 1 JST 2MM S9B-PH-KS CN6 R25 R21 R15 100K R35 100nF C8 R20 100R 100R R22 100R R23 100R 100nF 10K 100R 10U 16V +5V R24 100R C10 +5V 100R R5 100nF C14 C13 22pF 22pF BRIGHT C6 C5 FREQ=20MHz CRYSTAL X1 BRIGHT ON/OFF RESET 10K R13 RB5 RB1 RB0/INT VDD VSS RE1/WR/AN6 RC5/SDO RC7/RX/DT RD2/PSP2 RD1/PSP1 R METAL 1/4W 220R 1/4W Metal Film R METAL 1/4W 220R 1/4W Metal Film 40 39 38 37 36 35 LED 34 33 IR IN 32 31 30 MUTE 29 OE1# 28 RESET 27 SERVO RESET 26 SERIAL RX 25 SERIAL TX 24 IR OUT 23 SDA 22 D7 21 D6 R9 220R 220R R2 BC337 +5V Q2 R37 PIC16F874A RD3/PSP3 RC4/SDI/SDA RD0/PSP0 RC3/SCK/SCL RC2/CCP1 RC6/TX/CK OSC2/CLKOUT RC1/T1OSI/CCP2 RD4/PSP4 OSC1/CLKIN RCO/T1OSO/T1CKI RD6/PSP6 RD5/PSP5 VSS RD7/PSP7 RE0/RD/AN5 RE2/CS/AN7 VDD RA5/AN4/SS RB2 RB3/PGM RB4 RB6/PGC RA4/T0CKI RA3/AN3/VREF RA2/AN2 RA0/AN0 RB7/PGD 10K RA1/AN1 MCLR/VPP U2 LED R36 1 2 3 4 5 6 7 8 RS 9 E 10 11 12 OSC1 13 OSC2 14 U7_SO1 15 U7_S02 16 U9_S01 17 SCL 18 D4 19 D5 20 CLK SD TX SD RX CS INT R6 +5V AP19135/4 Front Panel Circuit Diagram 5 7 6 10 9 14 12 13 BA6218 OUT1 COM OUT2 VCC GND2 RIN GND1 FIN U5 TO DAC BOARD CN8 (SPI) Vdd RS E D1 D3 D5 D7 MGND 5 6 7 8 9 1 2 3 Cambridge Audio Azur 840C CD Player 1 3 D1 Q1 BC337 10K R19 SW1 SW4 Back Skip 100nF C9 Forward Skip Stop SW8 SW6 Open/Close SW7 +5V SW2 Menu Play/Pause SW5 Select SW3 Standby +5V 10K R12 R26 100R R27 100R R28 100R R29 100R R30 100R R31 100R R32 100R R1 47R C11 10U 16V C3 100n MUTE SO1_U9 SO2_U7 SO1_U7 OE1 SERIAL RX SERIAL TX CONTROL BUS 1 2 3 4 5 6 7 8 3 2 1 TSOP18 IR RECEIVER OPT GND +5V U1 JST 2MM S8B-PH-KS CN7 TO DAC BOARD CN9 (RS232/MUTE/SPDIF CNTRL) SERVO RESET RESET 10K R18 LED 3MM BLUE 8 To enhance viewing, please print to A3 AP19135/3 Front Panel Board Layout (Top Side) Cambridge Audio Azur 840C CD Player 9 To enhance viewing, please print to A3 AP19135/3 Front Panel Board Layout (Bottom Side) Cambridge Audio Azur 840C CD Player 10 Cambridge Audio Azur 840C Front Panel PCB BOM AP Part No. Value RESISTORS 47R 56R 100R 220R 300R 680R 1K2 4K7 10k 100K PRE MULTI 500R Description 0.25 W 1% Metal Fil m 0.25 W 1% Metal Fil m 0.25 W 1% Metal Fil m 0.25 W 1% Metal Fil m 0.25 W 1% Metal Fil m 0.125 W 1% Metal Fil m 0.25 W 1% Metal Fil m 0.25 W 1% Metal Fil m 0.25 W 1% Metal Fil m 0.25 W 1% Metal Fil m Side adjust Footprint 9.5 x 4.5 mm AP19138/5 Factory Part No 1012-201014E000 1016-801016E020 VR B500 OHM +10% WI 3296NOXOX-XA1013 Qty Component Ident 1 2 16 4 1 2 1 2 6 1 R1 R3, R4 R5, R7, R8, R20-R3 2 R2, R9, R36, R3 7 R10 R33, R34 R14 R16, R1 7 R6, R12, R13, R15,R18, R1 9 R35 1 R11 C 5, C 6 C 1, C 2, C 15- C 17, C 20, C 21 C3, C4, C8-C10, C12, C14, C19, C22 Notes Mount on bottom side of PCB with screw adjust facing upwards CAPACITORS 22pF 1nF C er amic N PO , Pitch = 5. 0mm C er amic 50V Pitch = 5. 0mm 2 7 100nF C er amic 50V Pitch = 5. 0mm 9 10uF Miniature 16V Pitch 2.5mm Height 5.2mm 4 C7, C11, C13, C18 T SO P1836SS3V T SO P IR RE C E IV E R 1 U1 Mount 13.5mm height from PCB, Please support using foam pad spacer PIC 16F877A- I/P PIC 1 U2 Programme with AP20058/2, Please add version label - See AP Service Dept. DS18030-050 DIGITAL PO T 1 U3 PIC 12C 508A- I/P PIC 1 U4 BA6218 C D D R IV E R IC 1 U5 NPN SMALL SIGNA L 4 Q1-Q4 1 2 D1 D2, D3 G E N E RAL PU RPO SE RE C T IFIE R 4 D 4, D 5, D 6, D 7 TACT SWITCH TACT SW 2P2T KPT-1105A (5MM) 8 SW1-SW8 20MH z C RY ST AL 20MH z, H E IG H T AB O U T 3. 5MM C L 20PF H C - 49U S 1 X1 SEMICONDUCTORS PY983 PY260 PY214 TRANSISTORS BC33 7 DIODES LE D BLU E 5V1 ZENE R 1N 4004 BZX79C5V1 4118-030051E200 1402-511201E20 0 Programme with AP20231/1, Please add version label - See AP Service Dept MISCELLANEOUS PY043 + - 30PPM Note: resistors, capacitors and other 'generic' electronic components are not usually stocked by the manufacturer. Please obtain these locally. 11 2 1 1 2 3 4 5 1nF C88 1 2 3 4 AGND AOUTR CS4333/38 MCLK VA+ AOUTL LRCK DEM/SCL SDATA U5 8 7 6 5 C32 10uF 25V C39 10uF 25V To enhance viewing, please print to A3 MCLK CN14 DIG DATA CN13 +5V 0.1uF C41 15K 15K 390pF C42 1N4001 D12 R74 390pF C38 R80 GND 12K 12K R72 20K R79 R73 C33 10pF 6 5 220uF 16V C37 20K 2 3 R81 C36 10pF 1 47K NJM2100 7 U4:B NJM2100 U4:A 47K 0.1uF C35 C34 10uF 25V C43 10uF 25V R90 390R R88 56K R71 56K R70 1K R68 C55 IN4148 100R R69 100R 5 4 3 2 1 CN11 47uF 16V 7 8 5 4 MUTE MUTE1 ROUT GND LOUT 100R 330k D1 R87 R89 AP18432/3 CD Servo PCB Schematic (DAC) R75 10uF 25V C40 R82 +8V 14.5V Cambridge Audio Azur 840C CD Player 8 4 RL1:C RL1:B Q6 9012 6 3 560R R85 3K9 R86 1 2 3 1 2 3 4.7uF 16V C63 CN10 CN9 D6 IN4004 L.CH GND R.CH L.CH GND R.CH AC 4K7 R84 D7 IN4004 Q5 9012 8050 Q4 R83 8050 Q3 2 1 RL1:A 120R 0.5W 12 CN3 1 2 3 4 5 6 7 8 +5VDD 100uH L5 +5VCC 1K R20 10uF 16V C82 C84 220uF 16V +5V 100uH C83 470uF 16V L4 1N4148 D9 3K3 R19 C81 25pF X2 CRYSTAL 7.3728MHz C85 100uF 16V SEG7 R18 10K R76 4K7 VDD NC NC NC VLC COM0 COM1 COM2 COM3 SEG0 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 U3 TOSHCDMCU NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC (WAIT) NC (SO2) NC (SI2) NC REMOTE SEG17 TEST SEG15 NC SEG14 RESET SEG13 XIN SEG12 XOUT SEG11 VSSS C80 25pF 9014C Q13 REMOTE C79 100nF +5V 10K R65 R17 10K R66 2K2 100nF C86 CEE BUCK BUS0 BUS1 BUS2 BUS3 D-CLOSE D-OPEN SLT CLT OLT NC NC PWR DET AD K3 AD K2 AD K1 VAREF (BOOT) VSS +5VDD 50 49 48 47 46 45 44 43 NC 42 NC 41 40 39 38 37 36 35 34 33 32 31 R39 10K L3 100uH To enhance viewing, please print to A3 PROGRAMMING +5V RESET BOOT GND WAIT SCK2 SI2 SO2 22K R21 NC R22 NC MUTE SEG9 NC NC SEG8 NC NC SEG10 SEG16 NC NC NC 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 NC 98 NC 99 NC 100 SEG18 NC NC +5V NC SCK2 +5V 10K R26 LINK OPEN = F/L SHORT = T/L FL/TL CORW LCD NC NC NC NC NC SET LCD CONTRAST NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 VDD RES 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 1K LK1 4K7 R32 R35 R16 10K D8 R36 1N4148 47uF 16V 0.047uF C13 C29 1uF 16V C12 R40 5 4 3 2 1 CN1 1 2 3 RST TSMOD TEST4 CCE BUCK VSS VDD BUS3 BUS2 BUS1 BUS0 TEST3 TEST2 TEST1 DVSL LO DVR DVDD RO XTALI CN17 XTALO CN18 CN12 MUTE +5V C87 1nF 5 4 3 2 1 DVSR DIGITAL OUT D-OUT +5V GND 1 2 1 2 1 2 CN20 Q12 8050 C15 0.047uF Q7 8050 81 82 83 84 85 86 87 NC 88 NC 89 NC 90 91 92 93 94 95 96 97 98 NC 99 NC 100 10R 1/4W 15pF DATA OUT CN2 R37 R38 C16 Q8 8050 15pF X1 CRYSTAL 16.9344MHz C17 GND LRCK PCMD BCK EMPH R64 10K +5V D11 1N4148 D10 1N4148 R28 10K +5V GND OSC GND MUTE MUTE1 ROUT GND LOUT Q11 8050 470R C19 0.047uF R29 10K +5V C27 C26 CN8 R41 3K3 0.047uF 0.047uF R44 C25 C24 DRAW DRIVE 5 4 3 2 1 R42 3K3 3K3 470pF 470pF CLT GND OLT CLOSE OPEN TC9462F R10 47R C11 0.047uF LPFN LPFO PVREF VCOREF VCOF AVSS1 SLCO RFI AVDD1 RFCT RFZI RFRP FEI SBAD TSIN TEI TEZI FOO TRO VREF 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 47uF 16V C10 R6 220K C8 0.015uF U2 R43 10K 47uF 16V C9 C76 47pF R45 3K3 AC 3K3 3K3 R47 1 2 R46 AC IN CN19 47uF 16V C70 C23 C77 0.047uF 47uF 16V 100nF C54 D2 0.047uF C5 D5 100nF C53 0.01uF C7 C78 47uF 16V IN4004 IN4004 D3 D4 C73 R3 1K 100pF IN4004 IN4004 C51 C71 R63 100K C1 3pF 2K2 220R C2 0.22uF C72 R4 0.22uF 100nF R61 C3 C4 100nF C49 R1 10K R2 100nF T2AL FU1 100nF C52 14.5V 100nF AP18432/3 CD Servo PCB Schematic (Servo) 10K NC NC NC NC NC NC NC NC NC NC NC 10K 10K R25 NO FIT FOR 740/840C 10K 10K 1 2 3 4 5 6 7 8 XVDD TEST0 SEG3 SEG2 SEG1 SEG0 COM3 COM2 COM1 COM0 XO HSO R23 10K R15 R34 XVSS EMPH Q10 8550 VDD4 LRCK R24 10K R14 NC PXO VSS1 Q9 8550 PXI BCK R33 VSS4 AOUT 470R TESIO1 DOUT R27 10K TESIN MBOV LCD IO3 VDD1 CN4 IO2 VSS2 +5V 22uF 16V R67 14mm link(840c only) IO1 DATA 1 2 3 4 5 6 7 8 IO0 SFSY CN5 VSS3 SBSY LCD VDD3 SPCK SEG11 SEG10 SEG9 SEG8 SEG7 SEG6 SEG5 SEG4 XI UHSO NC NC NC 47uF 16V R31 10K FLGD SPDA +8V DACT IPF C14 R30 10K FLGC COFS CONTROL KEYS FLGA VDD2 1 2 3 4 5 6 7 SEL TESIO0 CN6 2VREF P2VREF SEG18 SEG17 SEG16 SEG15 SEG14 SEG13 SEG12 CKSE SBOK C28 +5V DMO HSSW REMOTE +5V GND K1 K2 PWR DET RESET TEBC2 ZDET CN7 TEBC1 PDO 7 6 5 4 3 2 1 DMOUT CLCK NC NC NC NC R13 NC NC NC NC NC NC NC 47uF 16V C18 NC NC NC NC FLGB MONIT NC NC NC NC NC NC NC R12 NC TEBC0 TMAXS 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 RFGC TMAX 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 18 20 21 22 23 24 25 26 27 28 29 30 NC 47uF 16V C74 REMOTE 15K 0.01uF C75 R11 Cambridge Audio Azur 840C CD Player 47K R5 68K R7 R9 10K R8 0.0027uF C6 0.047uF C22 CN21 1 100nF 27K C21 0.0047uF VI 7808 U7 FP DIS 3300uF 25V C50 1 2 GND 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 2 TEO FPI RFN2 GND RFO TA2153FN VCC RFGC GMAD FNI GVSW AGCIN TPI TNI MDI PKC RFGO RFRPIN SEL LDO TEB TEN SBAD 2VRO BTC RFCT RFRP SEB VRO FEO 3 FEN U1 1K R60 VO L1 47uH 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 100nF C48 0.047uF C66 R59 82K 470uF 16V C47 +8V 220uF 16V C65 C60 0.047uF 47uF 16V C20 C61 100nF C59 100nF 10K 10K 10K R54 R53 10K OUT(-)4 VIN3 VIN2 PVCC2 PW GND OUT(-)2 15R R62 Q1 9015 100nF R57 R48 R49 R50 R51 R52 100uF 16V 100nF C62 PVCC3 OUT(-)3 PW GND 220uF 16V C56 TA2092N OUT(+)3 S GND VCI OUT(+)2 VIN4 S VCC VIN1 OUT(+)4 PVCC4 PW GND PVCC1 VRI OUT(+)1 3 C45 100nF PW GND VO OUT(-)1 U6 C69 C64 1 2 3 4 5 6 7 8 9 10 11 12 VI U8 7805 R55 R56 C67 100nF +8V C44 100nF 1 GND 2 24 23 22 21 20 19 18 17 16 15 14 13 56K 47K 47K 47K 47K 56K 10uH L2 +5V C46 470uF 16V 22uF C68 R58 C58 100nF C57 100nF J1 100R 0R CN15 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 MECH CN16 FCTRTR+ FC+ PD VR LD GND F C B A D E VCC VC SLTSLT+ FM+ FMDMDM+ MOTOR DRIVE 6 5 4 3 2 1 13 To enhance viewing, please print to A3 AP12927/8 CD Servo Board Layout (Top Side) Cambridge Audio Azur 840C CD Player 14 To enhance viewing, please print to A3 AP12927/8 CD Servo Board Layout (Bottom Side) Cambridge Audio Azur 840C CD Player 15 Cambridge Audio Azur 840C Servo PCB Assembly BOM AP Part No Value Description AP19969/3 Qty Component Ident Factory Part no Notes RESISTORS 10R 15R link 47R 0. 25 W Metal Film Resistor 0.125 W Metal Film Resistor 14mm link 0. 125 W Metal Film Resistor 1 1 1 1 R40 R62 R67 R10, 1011- 000014- 000 100R 0.125 W Metal Film Resistor 1 wirelink ( J1 ) 1011-001016-000 220R 470R 1K 2K 2 3K3 4K 7 0. 125 W Metal Film Resistor 0. 125 W Metal Film Resistor 0.125 W Metal Film Resistor 0. 125 W Metal Film Resistor 0.125 W Metal Film Resistor 0. 125 W Metal Film Resistor 1 2 5 2 7 2 10K 0.125 W Metal Film Resistor 26 15K 22K 27K 47K 56K 68K 82K 100K 220K 0. 125 W Metal Film Resistor 0.125 W Metal Film Resistor 0.125 W Metal Film Resistor 0.125 W Metal Film Resistor 0.125 W Metal Film Resistor 0. 125 W Metal Film Resistor 0.125 W Metal Film Resistor 0.125 W Metal Film Resistor 0.125 W Metal Film Resistor 1 1 1 5 2 2 1 1 1 R4 1012- 201018- 000 R33, 34 1014- 701016- 000 R3, 20, 25, 60 1011-002018-000 R1, 66 1012- 202016- 000 R19, 41, 42, 44, 45, 46, 47 1013-302018-000 R32, 76 1014- 702016- 000 R2, 8, 11, 12, 13, 14, 15, 16, 17, 18, 26, 27, 28, 29, 30, 31, 39, 43, 1011-003016-000 53, 54, 55, 56, 64, 65 R5, 1011- 503018- 000 R21 R61 R9, 48, 49, 50, 51 1014-703016-000 R52, 57 R7, 1016- 803018- 000 R59 1018-203018-000 R63 1011-004016-000 R6 1012-204016-000 3pF 15pF 25pF 47pF 100pF 470pF 1nF 10nF 10nF 15nF Ceramic COG 50V 5mm Pitch Ceramic COG 50V 5mm Pitch Ceramic COG 50V 5mm Pitch Ceramic COG 50V 5mm Pitch Ceramic COG 50V 5mm Pitch Ceramic 50V 5mm Pitch C er amic 50V 5mm Pitch Ceramic 50V 5mm Pitch Mylar 5mm Pitch Ceramic 50V 5mm Pitch 1 2 2 1 1 2 1 1 1 1 47nF Ceramic 50V 5mm Pitch 11 100nF Ceramic 50V 5mm Pitch 20 220nF 2n7 4n7 1uF 10uF 22uF Ceramic 50V 5mm Pitch Mylar 5mm Pitch Mylar 5mm Pitch 16V Electrolytic 16V Electrolytic 16V Electrolytic 2 1 1 1 1 2 47uF 16V Electrolytic 10 100uF 220uF 470uF 3300uF 16V Electrolytic 16V Electrolytic 16V Electrolytic 25V Electrolytic 2 3 3 1 For 840C O N L Y . U se link 1014- 700018- 000 wirelink is positioned between C68 and L2. This must be 100R resistor CAPACITORS C1 C16, 17 1100-150043-000 C80, 81 1100-250042-000 C76 1100-470043-000 C73 C24, 25 1100-471043-000 C 87 1100- 102043- 000 C75 1100-103043-000 C7 C8 1100-153043-000 C5, 11, 13, 15, 19, 22, 23, 26, 27, 1100-473044-000 60, 66 C2, 4, 44, 45, 48, 49, 51, 52, 53, 54, 57, 58, 59, 61, 62, 64, 67, 71, 1106-104044-000 79, 86 C3, 72 1100-224044-000 C6 1101- 272063- 000 C 21 1101- 472062- 000 C12 1102-107044-000 C82 1102-100024-000 C14, 68 1102-220014-000 C9, 10, 18, 20, 28, 29, 70, 74, 77, 1102-470014-000 78 C69, 85 1102-101014-000 C56, 65, 84 1102-221014-000 C46, 47, 83 1102-471014-000 C50 1102-332024-000 SEMICONDUCTORS PY474 TA2153FN PY475 TC9462FG TOSHIBA RF Amplifier TOSHIBA Digital Servo-chip Processor 1 U1 1 U2 4121-530103-000 4194- 620123- 000 100PIN S Q FP T O SH IB A Note: resistors, capacitors and other 'generic' electronic components are not usually stocked by the manufacturer. Please obtain these locally. 16 Cambridge Audio Azur 840C Servo PCB Assembly BOM AP Part No Value Description AP19969/3 Qty Component Ident Factory Part no PY565 TOSHCDMCU MCU TMP87EP26F-1J15 SOP TOSHIBA 1 U3 4187- 260103- 000 PY 473 T A2092N T O SH IB A Power dr iver IC 1 U6 4120- 920053- 000 PY 316 7808 T O - 220 + 8V Regulator 1 U7 4178- 080302- 600 PD 035 PY014 PY558 PY 559 PY 560 7805 C8050D 9014C C 8550 9015C 1N4148 1N4004 T O - 220 + 5V Regulator NPN Transistor TO92 NPN Transistor PN P T r ansistor PN P T r ansistor Signal Diode Rectifier Diode 1 U8 4 Q7, 8, 11, 12 1 Q13 2 Q 9, 10 1 Q1 3 D9, 10, 11 4 D2, 3, 4, 5 4178- 050334- 700 1300-805000-100 1300-901400-100 1301- 855000- 100 1301- 901500- 100 1401-141480-000 1401-140040-000 Notes fit heatsink to top of driver IC mount on heatsing using heatsink comound only stand up off PCB by 7.5mm CRYSTALS PY 027 PY 561 16. 9344MH z 7. 3728MH z 2 Pin 5mm Pitch 2 Pin 5mm Pitch 1 1 X1 X2 1600- 169343- 000 1600- 737282- 990 2mm Pitch JST 2mm Pitch JST 2mm Pitch JST 2mm Pitch JST 2mm Pitch JST 2mm Pitch JST 2. 5mm Pitch JST FFC 1. 0mm Pitch 2 1 2 1 2 3 1 1 C N 17 21 C N 1, C N 2, 8, C N 15 C N 6, 7 C N 3, 4, 5 C N 19 C N 16 2300- 002000- 001 2300- 003000- 001 2300- 005000- 000 2300- 006000- 000 2300- 007000- 000 2300- 008000- 000 2300- 002100- 003 2301- 016901- 000 20mm PC B Mount Fuse H older 1 FU 1 4031- 050100- 001 T2AL 2A delay 20mm Fuse 250V LBC (low breaking capacity) 1 FU 1 4030- 618002- 001 10uH Inductor 8mm Pitch 1 L2 47uH Inductor 8mm Pitch 1 L1 1504- 470300- 100 100uH Inductor 8mm Pitch 3 L 3, 4, 5 1504- 101300- 100 CONNECTORS 2 W ay 3 W ay 5 W ay 6 W ay 7 W ay 8 W ay 2 W ay 16 W ay MISCELLANEOUS Note: resistors, capacitors and other 'generic' electronic components are not usually stocked by the manufacturer. Please obtain these locally. 17 VOLTSELECT RF1002B 115/230V Marking FROM J4 (Common) To enhance viewing, please print to A3 AP17977/2 Voltage Select Switch PCB Schematic BLACK (115V) J3 BROWN (230V) J1 SW1 J2 Cambridge Audio Azur 840C CD Player 18 AP17977/2 Voltage Select Switch Board Layout (Top Side) To enhance viewing, please print to A3 Cambridge Audio Azur 840C CD Player 19 AP17977/2 Voltage Select Switch Board Layout (Bottom Side) To enhance viewing, please print to A3 Cambridge Audio Azur 840C CD Player 20 AP17980/1 Cambridge Audio Azur 840C V2 Voltage Selector PCB Assembly BOM AP Part No Value Description Qty Component Ident Factory Part Number Notes CONNECTORS RF1002B V oltage Selector 1 SW 1 2406- 010200- 000 Note: resistors, capacitors and other 'generic' electronic components are not usually stocked by the manufacturer. Please obtain these locally. 21 3 1 3 1 2 3 1 2 AV-8,4-8ES 1 2 CN5 APTX179AT GND INPUT VCC U10 2 AV-8,4-8ES 2 1 CN4 APRX179AT VCC GND OUTPUT U5 1N 50V NPO SM 0805 3 AV-8,4-8ES 1 2 100N 50V CER C279 100N 50V CER C278 APRX179AT VCC GND CN3 C11 C13 C17 100R 0805 R16 100R 0805 R17 C273 position 75R 0805 R19 100R 0805 R32 6 U6:C 4 U6:B 2 U6:A 74VHC14 VCC=+5V_DIG 5 74VHC14 VCC=+5V_DIG 3 74VHC14 VCC=+5V_DIG 1 12 13 +5V_DIG 2 5 1K 0805 3 100N 50V Y5V SM 0805 10 U6:E 4 9 11 12 +5V_DIG 74VHC14 VCC=+5V_DIG 9 100R 0805 R33 3.3V 16 9 7 14 15 8 10 11 12 13 6 5 4 3 2 1 VCC 2Y 1Y SO 2E U9 VCC 2Y 1Y SO 2E 100N 50V Y5V SM 0805 C20 74HCT153 GND 2-IN0 2-IN1 2-IN2 2-IN3 1-IN0 1-IN1 1-IN2 1-IN3 S1 1E 100N 50V Y5V SM 0805 C19 74VHC153 GND 2-IN0 2-IN1 2-IN2 2-IN3 1-IN0 1-IN1 1-IN2 1-IN3 S1 1E U7 16 8 10 11 12 13 6 5 4 3 2 1 C215 C222 100N 50V Y5V SM 0805 3.3V 9 100N 50V Y5V SM 0805 7 14 15 10K 0805 R27 10K 0805 R26 5 fs = 48kHz min 11 spdif input pass through fs = 44.1kHz 3 8 servo spdif pass through fs = 44.1kHz 6 74VHC32 VCC=3.3V U8:A SO2_U9 2 1 SO1_U7 SERVO_SPDIF_OUT 10 7 11 8 6 9 CS8406_TXP CS8416_RXP0 VCC=3.3V U8:D VCC=3.3V U8:C VCC=3.3V U8:B 0R 0805 R28 12 13 9 10 5 4 100R 0805 R85 100R 0805 R66 1 2 IR IN IR OUT SERIAL_RX SERIAL_TX 100N 50V X7R SM 0805 C145 3 2 1 3 +5V 4 5 6 100R 0805 R70 100R 0805 R71 C146 4 5 9 12 10 11 100N 50V X7R SM 0805 1 3 U1 +5V 400K +5V 400K R2OUT R1OUT T2IN T1IN C2- C4 T1 T1 R3 R1 R1 5K 5K R2IN R1IN T2OUT T1OUT V- V+ 8 13 7 14 6 2 10uF 16V C3 6 5 9 4011 VDD=+5V VSS=GND 4011 VDD=+5V VSS=GND 4011 VDD=+5V VSS=GND D1 100N 50V X7R SM 0805 C148 100N 50V X7R SM 0805 C147 BC817-16 SM Q1 10K 0805 8 13 12 CA IR DEMODULATOR R5 +5V U28 MAX202 SM 10K 0805 R4 0805 10K +5V 1 2 100N 50V X7R SM 0805 C2+ C1- 36 kHz TSOP1836 IR RECEIVER C1+ 4011 VDD=+5V VSS=GND U3:A 47R 0805 R9 OP4N25 need to assign package NC U2 100R 0805 R6 100N 50V Y5V SM 0805 C163 220R 0805 R1 3.3V SERVO_SPDIF_OUT_3.3V 100N 50V X7R SM 0805 C144 AV2-8,4-14/EC CN1:A 5 AP19129/4 DAC DSP Circuit Diagram (ABus) 8 4 100R0805 R25 SO1_U9 U6:F 2 100R 0805 R24 VCC=+5V_DIG 8 1 U23:F VCC=+5V_DIG U23:B 74VHC14 VCC=+5V_DIG 100N 50V Y5V SM 0805 C161 R29 C162 6 10 3 VCC=+5V_DIG U23:E 1 74HCU04 11 VCC=+5V_DIG U23:C VCC=+5V_DIG U23:A 0805 +5V_DIG 1 12 VCC=+5V_DIG R23 10K 13 U23:D 0805 R21 10K 74VHC14 VCC=+5V_DIG U6:D 1K 0805 R65 100R 0805 R22 100R 0805 R20 To enhance viewing, please print to A3 100N 50V X7R SM 0805 C275 0805 91R R31 100N 50V X7R SM 0805 C14 430R 100N 50V X7R SM 0805 0805 C21 10U 16V EL C26 47UH SM L4 +5V_DIG 10U 16V EL C10 47UH SM L3 +5V_DIG 75R 0805 100N 50V X7R SM 0805 C12 10U 16V EL C8 47UH SM L2 SEE DAC TEST SIGNALS LIST FOR SIGNAL DESCRIPTION OPT INDICATES TEST POINT REF GND +5V_DIG R18 C274 position 100R 0805 C18 OUTPUT C22 47P 50V Y5V SM 0805 47P 50V Y5V SM 0805 U4 C24 1N 50V NPO SM 0805 C23 C7 100P 50V Y5V SM 0805 C9 100P 50V Y5V SM 0805 100N 50V Y5V SM 0805 3 100N 50V Y5V SM 0805 3 100N 50V Y5V SM 0805 100N 50V Y5V SM 0805 100P 50V Y5V SM 0805 C201 C202 MULTIPLEXER 1 MULTIPLEXER 2 +5V 1 2 3 16 VCC GND Cambridge Audio Azur 840C CD Player MULTIPLEXER 2 15 4 U3:B 10 U3:C 11 U3:D K A IR IN 1N 50V NP0 SM 0805 C5 JACK-CKX-3.5-12 C1 C2 C6 2R2 0805 R8 IR OUT RS232 CONN-9W D-TYPE CN2 1N 50V NP0 SM 0805 9 8 7 6 5 4 3 2 1 AV2-8,4-14/EC CN1:B 4 0805 3 CN100 3.5mm JACK 1N 50V NP0 SM 100N 50V X7R SM 0805 100R 0805 R7 220R 0805 R10 0805 R15 100R 5 IR receiver MULTIPLEXER 1 22 Page 1 1 1 1 1 1 1 1 1 1 1 1 Test Point Schematic Ref 1 2 3 4 5 6 7 8 9 10 11 12 AP19129/5 DAC Test Signals (Main Signal Paths General) 5V C ontinuous ser ial data signal SPD IF coax/optical O /P U 9 pin 7 ‘scope ‘scope 3V 3 C ontinuous ser ial data signal SPD IF signal fr om SPD IF T X ( fr om D SP) U 9 pin 4 D igital D igital ‘scope 3V3 Continuous serial data signal ‘scope SPDIF signal from CD servo 3V3 pass thro’ (CD playback & Pass thro’ selected) 3V 3 C ontinuous ser ial data signal U9 pin 5 SPD IF signal fr om C D ser vo to SPD IF RX ch 2 ( to D SP) Digital U 8 pin 6 D igital ‘scope 5V C ontinuous ser ial data signal SPD IF signal fr om C D ser vo ( C D playback selected) U 8 pin 4 D igital ‘scope 3V 3 C ontinuous ser ial data signal SPD IF signal after I/P selection to SPD IF RX ch 0 ( to D SP) U 9 pin 3 ‘scope D igital 3V 3 C ontinuous ser ial data signal SPD IF coax I/P 1 or 2 ( I/P 1 or 2 selected) U 8 pin 2 ‘scope D igital 3V 3 C ontinuous ser ial data signal ‘scope ‘scope ‘scope ‘scope Meter Type U 8 pin 1 SPD IF optical I/P 1 or 2 ( I/P 1 or 2 selected) 5V C ontinuous ser ial data signal SPD IF coax 2 I/P after level conver t U 7 pin 12 5V C ontinuous ser ial data signal SPD IF optical 2 I/P U 7 pin 4 5V C ontinuous ser ial data signal 5V C ontinuous ser ial data signal Measur ement SPD IF coax 1 I/P after level conver t SPD IF optical 1 I/P D escr iption U 7 pin 13 U 7 pin 3 Measurement Node D igital D igital D igital D igital D igital Signal Type Cambridge Audio Azur 840C CD Player 23 U20:B VCC=+5V 6 5 3 74HCT125 VCC=+5V U20:A 11 C165 100N 50V X7R SM 0805 C29 VCC=+5V U20:D MISO 2 12 10U 16V EL C36 R132 R38 9 12 5 2 100R 0805 0805 100R INTREQ 10U 16V EL 3.3V 1K C27 0805 10K R41 100R 0805 R40 17 U19:A 6 VCC=3.3V 8 U19:C VCC=3.3V 11 U19:D VCC=3.3V U19:B VCC=3.3V 3 74VHC125 RXP0 X1 3.3V DSP RESET SS 2 TEST U15:A CS8406 3.3V R88 10K 0805 R87 10K 0805 3.3V 5 6 7 8 1 2 3 4 5 6 7 8 9 10 11 12 13 14 13 11 9 5 3 74VHC14 74VHC14 74VHC14 74VHC14 74VHC14 6 U15:E 100R 0805 R45 100R 0805 R44 100R 0805 R43 12 8 7 6 5 10K 0805 100R 0805 R42 100R 0805 U15:D R46 10 8 U15:F R39 100R R63 100R R62 0805 24.576MHz 1 2 3 4 U15:B U15:C 4 SCHMITT INVERTER 18 19 20 SDIN ISCLK TEST TCBL RST TEST TEST TEST TEST ILRCK INT OMCK U TEST GND VD RXP VL AD2 TEST TXN H/S AD0/CS SDA/CDOOUT TXP AD1/CDIN SCL/CCLK AD1/CDIN 74VHC14 VCC=OSC_3.3V 1 AD2/GPO2 GPO2 GPO0 VL DGND VD RMCK OMCK SDOUT SDA/CDOUT SCL/CCLK U12 24.576MHz 28 27 26 25 24 23 22 21 20 19 18 17 16 15 CS8416 AD0/CS RXP7 RXP6 RXP5 RXP4 RST FILTER AGND VA RXN 100N 50V X7R SM R60 0805 21 100R 3.3V 10P 50V Y5V SM 0805 C41 10U 16V EL 4 3 2 1 VCC 3.3V 3 3 2 1 C96 100N 50V X7R SM 0805 C77 BAS16 75V 0,3A D16 10U 35V EL C149 0R 1206 R2 5 6 7 8 33R C78 100N 50V X7R SM 0805 10U 35V EL C143 1.2V DSP 3.3V DSP 100N 50V X7R SM 0805 10K 0805 R135 0805 100N 50V X7R SM HEADER 3WAY 0R 1206 C76 100N 50V X7R SM 0805 CN11 R89 1.2V R49 5 6 7 8 33R 4 3 2 1 HW/SW BAS16 75V 0,3A D15 R36 RST 0805 GND GND GND GND GND GND PF6/SPISEL6/PPI13 100R R50 10K 0805 R56 100N 50V X7R SM 0805 C79 1 FUNCTIONAL 0 MODE PF7/SPISEL7/PPI12 PF8/PPI11 PF9/PPI10 PF10/PPI9 PF11/PPI8 PF12/PPI7 VDDEXT GND PF13/PPI6 PF14/PPI5 PF15/PPI4 PPI3 VDDINT PPI2 PPI1 PPI0 PPI_CLK VDDEXT GND VDDRTC RTXI RTXO GND NMI RESET VDDEXT XTAL CLKIN GND GND GND VDDEXT VROUT1 VROUT2 GND GND GND 33R R53 33R R55 AP19129/4 DAC DSP Circuit Diagram (DSP) MUTE_PIC 2 DS1818 U21 R61 100R C75 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 GND PF0/SPISS RXP1 To enhance viewing, please print to A3 U_MISO U20:C 9 VCC=+5V +5V 8 U_RESET U_SS U_SCLK U_MOSI +5V_OSC CS8406_TXP 0805 R34 C30 3.3V CLKOUT VDDINT 10K GND VDDEXT 10N 50V X7R SM 0805 C93 0805 100N 50V X7R SM VDDINT SCK 100R SA10 VDDEXT R37 GND PF4/SPISEL4/PPI15 28 27 26 25 24 23 22 21 20 19 18 17 16 15 ARDY DT1PRI OSCLK AMS0 TFS1 RXP2 AMS1 TSCLK1 13 SCKE PF3/SPISEL3/PPI_FS3 4 3 2 1 CS_FLASH# AMS3 AMS2 DR1SEC OLRCK VDDINT RFS1 RXP3 AOE DT0SEC U11 GND PF5/SPISEL5/PPI14 SMS PF2/SPISEL2 5 6 7 8 4 3 2 1 0805 C94 0805 100N 50V X7R SM VDDEXT PF1/SPISEL1/TMRCLK I2S ERR 3.3V 1 2 3 4 5 6 7 8 9 10 11 12 13 14 AWE TFS0 1 2 3 4 ADDR1 TSCLK0 R35 ADDR2 DR0SEC 8 7 6 5 GND TMR2 14 SRAS MISO C81 16 VDDINT TMR1 15 BR DT1SEC 100N 50V X7R SM 0805 C31 10 VDDEXT RCLK1 33R R59 5 6 7 8 10U 16V EL U_INTREQ C169 ADDR10 CS8416_RXP0 0805 ABE0 GND R58 R57 1K 1K C83 C33 0805 100N 50V X7R SM C74 ARE DT0PRI 100N 50V X7R SM 0805 C28 4 8 ADDR7 TX SERVO_SPDIF_OUT_3.3V 100N 50V X7R SM 100N 50V X7R SM 0805 13 1 4 13 GND VDDINT C82 0805 0805 4 3 2 1 100N 50V Y5V SM 0805 1 100N 50V X7R SM 0805 10 SCAS MOSI SS_1 C80 0805 100N 50V X7R SM SCK_1 DSP_MISO_1 DSP_MOSI_1 5 6 7 8 5 CLK SWE GND 4 3 2 1 100N 50V X7R SM WE_FLASH# ABE1 VDDEXT 5 6 7 8 8 7 6 5 C92 0805 100N 50V X7R SM C91 0805 100N 50V X7R SM OE_FLASH# DR1PRI 5 6 7 8 4 3 2 1 VCC N/C 1 GND 4 ADDR3 DR0PRI 33R R54 I2S DATA I2S FRAME 1 C168 ADDR8 RX SEE DAC TEST SIGNALS LIST FOR SIGNAL DESCRIPTION 100N 50V X7R SM VDDEXT RSCLK0 I2S ERR C32 10P 50V Y5V SM 0805 C38 ADDR6 VDDINT C84 10U 16V EL C167 A1 A2 A3 A4 ADDR4 RFS0 100N 50V X7R SM 0805 4 3 2 1 1 2 3 4 Cambridge Audio Azur 840C CD Player 10P 50V Y5V SM 0805 C40 C90 0805 100N 50V X7R SM C89 0805 100N 50V X7R SM ADDR5 TMR0 33R 0805 R153 C166 10P 50V Y5V SM 0805 C39 ADDR9 EMU 100N 50V X7R SM 0805 INDICATES TEST POINT REF 0805 C88 1 BOOT 0 MODE ADSP-BF532 132 131 130 129 128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103 102 101 100 99 98 97 96 95 94 93 92 91 90 89 3.3V DSP GND GND GND GND VDDEXT TCK BMODE1 BMODE0 GND DATA15 DATA14 DATA13 DATA12 DATA11 DATA10 DATA9 DATA8 GND VDDEXT DATA7 DATA6 DATA5 VDDINT DATA4 DATA3 DATA2 DATA1 DATA0 GND VDDEXT BG BGH ADDR19 ADDR18 ADDR17 ADDR16 ADDR15 ADDR14 ADDR13 GND GND GND GND GND U13 100N 50V X7R SM 0805 4K7 0805 R52 GND 1 A5 A6 A7 A8 A9 A10 A11 A12 ADDR11 TMS VDDEXT TD0 ADDR12 TD1 GND GND 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 TRST 176 175 174 173 172 171 170 169 168 167 166 165 164 163 162 161 160 159 158 157 156 155 154 153 152 151 150 149 148 147 146 145 144 143 142 141 140 139 138 137 136 135 134 133 10K 0805 R130 C97 10P 50V Y5V SM 0805 C37 10K R51 BITCLK WDCLK SDATA_L SDATA_R CS_DAC1 CS_DAC2 MUTE RELAY RESET DAC1_MCLK DAC2_MCLK MOSI SCK 3.3V DSP 100N 50V X7R SM 0805 C86 100N 50V X7R SM 0805 CONN-7HEAD DUAL JTEG CN6 8 7 6 5 C87 100N 50V X7R SM 0805 C95 1 2 3 4 0R 0805 0R 0805 100N 50V X7R SM 0805 C85 R64 R30 2 4 6 8 10 12 14 1 3 5 7 9 11 13 D5 D6 D7 D0 D1 D2 D3 D4 A13 A14 A15 A16 A17 A18 24 2 2 2 2 2 2 2 2 14 15 16 17 18 19 20 21 D igital Digital Digital Digital D igital Digital Digital R44/C 38 U12 pin 12 U12 pin 13 ‘scope 3V3 square wave 44.1kHz (for 44.1kHz sample freq from CD) AP19129/5 DAC Test Signals (Main Signal Paths General) D SP Master clock 3V 3 24. 576MH z squar e wave ‘scope ‘scope 3V3 square wave 48kHz (for 48kHz sample freq from DSP) To SPDIF TX Digital audio Word CLK ( CD selected With disc playing) ‘scope 3V3 square wave 3MHz (for 48kHz sample freq from DSP) To SPDIF TX Digital audio Bit CLK (CD selected With disc playing & Upsample frequency set to 48kHz) ‘scope 3V3 Continuous serial data signal ‘scope ‘scope 3V3 square wave 2.8MHz (for 44.1kHz sample freq from CD) 3V 3 24. 576MH z squar e wave ‘scope ‘scope Meter Type 3V3 Continuous serial data signal 3V 3 24. 576MH z squar e wave Measur ement To SPDIF TX Digital audio Data (SPDIF I/P or CD With disc playing) SPD IF T X master clock U 12 pin 21 U12 pin 14 From SPDIF RX Digital audio Word CLK ( CD selected With disc playing) From SPDIF RX Digital audio Bit CLK ( CD selected With disc playing) From SPDIF RX Digital audio Data (SPDIF I/P or CD With disc playing) SPD IF RX master clock D escr iption U11 pin 28 U11 pin 27 U11 pin 26 U 11 pin 25 D igital Digital Measurement Node Signal Type To enhance viewing, please print to A3 2 13 Test Point Page Schematic Ref Cambridge Audio Azur 840C CD Player 25 5 6 7 8 10U NP 35V 100R 47N 16V ECHU SM 1206 C228 47N 16V ECHU SM 1206 C48 4 3 2 1 40 47N 50V ECHU SM -5V(2) DAC2 _VA_+5V R150 C220 5 6 7 8 4 3 2 1 C122 1N 50V NP0 0603 0603 C123 1N 50V NP0 0603 0603 To enhance viewing, please print to A3 MUTE RESET DAC2_MCLK SCK CS_DAC2 MOSI 100R R149 +5V_DAC C99 SDATA_R BITCLK WDCLK DAC2 _VA_+5V BYG10G D26 22 DVDD 41 42 43 BYG10G DAC1_VA_+5V D25 BYG10G 4 3 2 1 D28 100R R148 D27 +5V_DAC 5 6 7 8 BYG10G MUTE RESET DAC1_MCLK SCK CS_DAC1 MOSI C151 10N 50V ECHU SM LRCLK DGND DVDD C98 DSD_LDATA MUTE DSD_SCLK 10U NP 35V BCLK CCLK MCLK LRCLK DGND +5V_DAC SDATA/EF_LDATA CLATCH BCLK CCLK MCLK 100R EF_RDATA CDATA EF_RDATA CDATA 4 3 2 1 DSD_SCLK PD/RST SDATA/EF_LDATA CLATCH R147 DSD_RDATA PD/RST 5 6 7 8 DSD_PHASE ZEROR ZEROL DSD_LDATA SDATA_L BITCLK WDCLK IOUTR+ IOUTL+ DSD_PHASE DSD_RDATA ZEROL MUTE C158 C229 47N 16V ECHU SM 1206 C230 47N 16V ECHU SM 1206 -5V(2) 1N 50V NP0 0603 0603 0603 C206 1N 50V NP0 0603 0603 C73 45 2V8_VREF_R 44 220pF 50V X7R SM 1N 50V NP0 0603 -5V -5V 1N 50V NP0 0603 0603 C72 27 2V8_VREF_L 26 220pF 50V X7R SM C207 47N 16V ECHU SM 1206 C234 47N 16V ECHU SM -5V OPA842 3 2 300R 46 R76 -15V 1206 6 U34 6 U33 1206 54 53 36 47N 16V ECHU SM 1206 C232 29 35 47N 16V ECHU SM 1206 C231 10pF 50V NPO 0603 C172 300R DAC2 _VA_+5V 2 3 OPA842 -5V(2) OPA842 3 300R DAC2 _VA_+5V R75 2 C173 0603 +15V 10pF 50V NPO 0603 1N 50V NP0 0603 0603 C198 1206 6 U37 6 U38 10pF 50V NPO 0603 C190 1N 50V NP0 0603 C199 R102 DAC1_VA_+5V 2 3 OPA842 28 300R 1206 DAC1_VA_+5V R101 C191 10pF 50V NPO 0603 1N 50V NP0 0603 0603 C181 1N 50V NP0 0603 0603 C180 R77 C188 1N5 63V PP 180p 63V PP -VR 7 49 R82 2K4 1206 R79 180p 63V PP 100R 1206 R74 R73 100R 1206 C176 PWR PAD -15V 1206 R83 PWR PAD -15V(2) OPA1632 5 4 U39 +15V Q9 C235 OPA1632 5 4 U35 +15V(2) R98 52 1 -15V(2) 47N 16V ECHU SM 1206 C233 +15V(2) 56 55 51 2 3 47R 47R C214 1N 50V NP0 0603 0603 R97 C205 1206 +VR 12K MELF 0805 R127 50 2K0 MELF 0805 R91 47R 1206 R92 R134 2K7 MELF 0805 0R NF 0603 R94 0603 C208 C265 6 OPA2134 3 2 U41:A C266 3 0R 0603 R180 0R 0603 R181 100P 50V NP0 SM 0805 ME2-5S RL1:B 100P 50V NP0 SM 0805 ME2-5S RL1:C -15V 8 4 5 7 1 C209 10V_R 6 C267 C268 3 100P 50V NP0 SM 0805 ME2-5S RL2:B 100P 50V NP0 SM 0805 ME2-5S RL2:C -15V(2) OPA2134 3 2 U46:A +15V(2) C260 -15V -15V(2) 100K 0805 R175 100K 0805 R176 OPA2134 3 2 R178 100K 0805 100N 50V X7R SM 0805 C186 -15V(2) 47N 16V ECHU SM + 3 - GND 3 C264 ME2-5S RL3:B R157 + 7 8 7 C269 6 R90 C182 100K 0805 U46:B 2K 1206 R162 5 6 2K 1206 R114 47R 0805 10K 1206 R156 1M MELF 0805 10K 1206 AV2-8,4-13EL 1 3 100K 0805 C242 C256 57 OPA2134 3 2 U40:A -15V OPA2134 3 2 U50:A 47R 1206 5K 1206 R171 10K 1206 R172 -15V(2) 47N 16V ECHU SM C258 47N 16V ECHU SM 1206 C259 47R 1206 R104 R173 +15V(2) 5K 1206 R113 10K 1206 R155 39 47N 16V ECHU SM 1206 C255 47N 16V ECHU SM 1206 47P 50V NP0 SM CN12:B 1 R169 R179 -15V(2) OPA2134 7 U50:B +15V(2) 47P 50V NP0 SM OPA2134 5 6 1 R129 AV2-8,4-13EL 1 2 C239 +15V 47P 50V NP0 SM OPA2134 7 U40:B R112 CN12:A -15V +15V 47P 50V NP0 SM R174 2K 1206 R111 5 6 2K 1206 470N 50V X7R SM 100P 50V NP0 SM 0805 ME2-5S RL3:C 10R 1206 1206 R187 2K 1206 R116 2K 1206 - R115 47R MELF 0805 C257 10R 1206 1206 R186 2K 1206 R100 2K 1206 R99 C238 1M MELF 0805 R158 100P 50V NP0 SM 0805 4 5 100N 50V X7R SM 0805 C277 1 WL5032 XLR MALE R177 100K 0805 1 C276 47N 16V ECHU SM CN14 1M MELF 0805 GND C187 - +15V(2) + 5 6 U41:B WL5032 XLR MALE CN13 7 R128 2 C184 220N 50V X7R SM 47N 16V ECHU SM C261 47N 16V ECHU SM 1M MELF 0805 R126 12K MELF 0805 R159 +15V +15V(2) 220N 50V X7R SM 0R 0603 R183 0R 0603 R182 47N 16V ECHU SM -VR -15V 10V_L +15V 470N 50V X7R SM +15V C262 4 5 7 8 1 0R 0603 R120 0R R119 47N 16V ECHU SM C263 47R MELF 0805 C204 R93 0R 0603 47N 16V ECHU SM 47N 16V ECHU SM 10V_R 1206 1N 50V NP0 0603 0603 C203 1206 R117 47R R118 2K0 MELF 0805 R123 R125 -VL 32 2K7 MELF 0805 R103 10V_L OPA2134 OPA2134 5 6 33 U53:A 47N 16V ECHU SM C178 BC807-25 SM Q5 330R MELF 0805 38 37 47N 16V ECHU SM C196 34 U52:B 7 BC807-25 SM 47N 16V ECHU SM 1206 2K7 1206 R84 C177 R124 330R MELF 0805 BC807-25 SM Q3 2K7 1206 R110 180p 63V PP 1 9 8 2K7 OPA2134 C194 1206 R109 C195 1 9 8 R96 U53:B R81 5 6 +VR Q7 330R MELF 0805 48 100R 1206 R69 100R 1206 R122 330R MELF 0805 BC807-25 SM 2K7 IL- 180p 63V PP 31 R68 OPA2134 1 U52:A 2K4 1206 2K0 MELF 0805 R95 2K7 MELF 0805 R78 820R 1206 1N5 63V PP C174 820R 1206 R80 47 1N5 63V PP C185 R108 2K4 1206 R105 820R 1206 1N5 63V PP C192 R107 2K4 1206 -VL R106 3 2 +VL 30 820R 1206 2K0 MELF 0805 R121 2K7 MELF 0805 8 4 C15 DAC1_VA_+5V IL+ AP19129/5 DAC DSP Filters Circuit Diagram C171 C170 10U 25V NP C154 10U 25V NP C54 DAC2 _VA_+5V 3K MELF 0805 R48 47N 16V ECHU SM 1206 C139 47N 16V ECHU SM 1206 C67 DAC1_VA_+5V 10U 25V NP C156 10U 25V NP C152 DAC1_VA_+5V 3K MELF 0805 R47 DAC2 _VA_+5V RIGHT AD1955 U131 47N 50V ECHU SM C56 10U 25V NP C55 LEFT AD1955 U130 47N 50V ECHU SM 10U 25V NP C159 47N 50V ECHU SM 23 24 25 FILTR IOUTRIOUTL- IL- 8 4 SEE DAC TEST SIGNALS LIST FOR SIGNAL DESCRIPTION IOUTRIOUTL- IOUTL+ IL+ IR+ 8 4 8 4 1 IREF AVDD IREF AVDD 0805 10R 1 2 3 4 5 6 7 8 9 10 11 12 13 14 AGND AGND AGND AGND ZEROR C157 C155 FILTB 28 27 26 25 24 23 22 21 20 19 18 17 16 15 IOUTR+ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 FILTR FILTB 28 27 26 25 24 23 22 21 20 19 18 17 16 15 7 4 4 8 5 5 8 8 47N 50V ECHU SM C53 C153 47N 50V ECHU SM 47N 50V ECHU SM IR- 1 1 1 1 8 4 2 3 6 7 C179 47U 25V EL 7 7 4 4 7 5 5 8 + INDICATES TEST POINT REF IR+ R168 R170 10R 0805 8 4 LEFT O/P 8 4 4 47U 25V EL C175 8 4 8 4 8 4 +VL RIGHT O/P IR2 3 6 7 8 Cambridge Audio Azur 840C CD Player 8 4 4 1nF 50V X7R SM C210 4 - RIGHT O/P LEFT O/P 26 4 4 4 4 4 4 4 4 4 4 4 4 4 22 23 24 25 26 27 28 29 30 31 32 33 34 Test Point Page Schematic Ref U 52 pin 7 U 52 pin 6 C ur r ent sour ce r ef voltage C ur r ent sour ce r ef voltage AP19129/5 DAC Test Signals (Main Signal Paths Left Channel) V oltage V oltage V oltage C ur r ent sour ce r ef voltage C ur r ent sour ce r ef voltage U 52 pin 2 V oltage C ur r ent sour ce r ef voltage 3. 3V dc voltmeter voltmeter voltmeter 4. 0V dc 4. 0V dc voltmeter voltmeter voltmeter voltmeter voltmeter voltmeter ‘scope ‘scope ‘scope ‘scope Meter T ype 3. 3V dc 4. 0V dc 4. 0V dc 2. 8V dc Mid r ail D C voltage r ef U 52 pin 5 U 52 pin 3 V oltage 2. 8V dc Mid r ail D C voltage of - ve cur r ent O /P of D AC C ur r ent sour ce r ef voltage U 37 pin 3 V oltage 3V3 pulses to 0V repetition rate 384kHz. To DAC1 Digital audio Word CLK (CD selected With disc playing) 2. 8V dc 3V3 square wave 12.288MHz To DAC1 Digital audio Bit CLK (CD selected With disc playing) Mid r ail D C voltage of + ve cur r ent O /P of D AC 3V3 Continuous serial data signal 3V 3 24. 576MH z squar e wave Measur ement To DAC1 Digital audio Data (SPDIF I/P or CD With disc playing) T o D AC 1 master clock D escr iption U 52 pin 1 U 37 pin 2 V oltage V oltage U 38 pin 2 U130 pin 2 U130 pin 3 U130 pin 4 U 130 pin 27 Measur ement N ode V oltage Digital Digital Digital D igital Signal T ype Cambridge Audio Azur 840C CD Player 27 4 4 4 4 36* 37* 38 39* THD meter Voltage/Analogue U 40 pin 7 Less than 5mV dc O/P unbalanced stage dc voltage / ac waveform / THD measurement (CD selected With disc playing 1kHz 0dB FS 1kHz sine wave 6.3V p-p 2.2Vrms tone) approx 0.0006% THD +N (22K BW ) approx 0.001% THD+N (22K BW ) (0.0006% THD +N (22K BW) bal a/c pins 4 & 5 U39 ) AP19129/5 DAC Test Signals (Main Signal Paths Left Channel) THD meter scope voltmeter THD meter THD meter ‘scope measurement (CD selected With disc playing 1kHz 0dB FS tone) 1kHz sine wave 6.3V p-p 2.2Vrms U 39 pin 5 THD meter THD meter THD meter voltmeter approx 0.001% THD+N (22K BW ) (0.0006% bal THD +N (22K BW) a/c pins 4 & 5 U39 ) scope Less than 5mV dc measurement (CD selected With disc playing 1kHz 0dB FS tone) Voltage/Analogue U 39 pin 4 1kHz sine wave 6.3V p-p 2.2Vrms THD meter 0.02% THD+N (22K BW) Voltmeter’scope scope 1kHz sine wave 2V p-p voltmeter THD meter 0.02% THD+N (22K BW) Approx -0.45V dc ‘scope voltmeter Approx -0.45V dc 1kHz sine wave 2V p-p Meter T ype Measur ement THD meter Current to voltage O/P -ve dc voltage / ac waveform / THD measurement (CD selected With disc playing 1kHz 0dB FS tone) Current to voltage O/P +ve dc voltage / ac waveform / THD measurement (CD selected With disc playing 1kHz 0dB FS tone) D escr iption Less than 5mV dc U 37 pin 6 U38 pin 6 Measur ement N ode Voltage/Analogue THD meter Voltage/Analogue Voltage/Analogue Signal T ype *THD Measurements: Measurements taken using Audio Precision System 1 with X1 1M scope prob 4 35* Test Point Page Schematic Ref Cambridge Audio Azur 840C CD Player 28 U 53 pin 2 U 53 pin 1 V oltage V oltage V oltage V oltage V oltage V oltage V oltage 4 4 4 4 4 4 4 4 4 4 4 4 42 43 44 45 46 47 48 49 50 51 52 U 53 pin 3 4. 0V dc C ur r ent sour ce r ef voltage 3. 3V dc 4. 0V dc C ur r ent sour ce r ef voltage C ur r ent sour ce r ef voltage 3. 3V dc C ur r ent sour ce r ef voltage 4. 0V dc C ur r ent sour ce r ef voltage U 53 pin 6 U 53 pin 7 4. 0V dc C ur r ent sour ce r ef voltage 2. 8V dc Mid r ail D C voltage r ef U 33 pin 3 U 53 pin 5 2.8V dc Mid rail DC voltage of -ve current O/P of DAC 2.8V dc 3V3 pulses to 0V repetition rate 384kHz. To DAC1 Digital audio Word CLK (CD selected With disc playing) Mid rail DC voltage of +ve current O/P of DAC 3V3 square wave 12.288MHz 3V3 Continuous serial data signal To DAC1 Digital audio Bit CLK (CD selected With disc playing) To DAC2 Digital audio Data (SPDIF I/P or CD With disc playing) 3V 3 24. 576MH z squar e wave Measur ement U34 pin 2 U33 pin 2 U131 pin 2 U131 pin 3 U131 pin 5 T o D AC 2 master clock D escr iption AP19129/5 DAC Test Signals (Main Signal Paths Right Channel) Voltage Voltage Digital Digital Digital U 131 pin 27 41 D igital 4 Measurement Node 40 Signal Type Page Test Point Schematic Ref Cambridge Audio Azur 840C CD Player voltmeter voltmeter voltmeter voltmeter voltmeter voltmeter voltmeter voltmeter voltmeter ‘scope ‘scope ‘scope ‘scope Meter T ype 29 4 4 4 4 4 53 54 * 55 * 56 * 57 * THD meter Voltage/Analogue THD meter Voltage/Analogue THD meter Voltage/Analogue THD meter Voltage/Analogue Voltage/Analogue Signal Type U 50 pin 7 U 35 pin 5 U 35 pin 4 U 34 pin 6 U33 pin 6 Measurement Node O/P unbalanced stage dc voltage / ac waveform / THD measurement (CD selected With disc playing 1kHz 0dB FS tone) THD measurement (CD selected With disc playing 1kHz 0dB FS tone) THD measurement (CD selected With disc playing 1kHz 0dB FS tone) Current to voltage O/P -ve dc voltage / ac waveform / THD measurement (CD selected With disc playing 1kHz 0dB FS tone) Current to voltage O/P +ve dc voltage / ac waveform / THD measurement (CD selected With disc playing 1kHz 0dB FS tone) D escr iption 1kHz sine wave 6.3V p-p 2.2Vrms approx 0.0006% THD +N (22K BW ) Less than 5mV dc 1kHz sine wave 6.3V p-p 2.2Vrms approx 0.001% THD+N (22K BW (0.0006% THD +N (22K BW) bal a/c pins 4 & 5 U35 ) Less than 5mV dc 1kHz sine wave 6.3V p-p 2.2Vrms approx 0.001% THD+N (22K BW ) (0.0006% THD +N (22K BW) bal a/cpins 4 & 5 U35 ) THD meter scope voltmeter THD meter THD meter scope voltmeter THD meter THD meter scope Voltmeter’scope THD meter 0.02% THD+N (22K BW) Less than 5mV dc scope 1kHz sine wave 2V p-p voltmeter THD meter 0.02% THD+N (22K BW) Approx -0.45V dc scope Voltmeter’scope Approx -0.45V dc 1kHz sine wave 2V p-p Meter T ype Measur ement AP19129/5 DAC Test Signals (Main Signal Paths Right Channel) *THD Measurements: Measurements taken using Audio Precision System 1 with X1 1M scope prob Page Test Point Schematic Ref Cambridge Audio Azur 840C CD Player 30 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 9 1 2 3 100N 50V X7R SM 0805 C164 100R 0805 R72 8 7 6 5 R151 100R 1 2 3 4 +5V SERVO_SPDIF_OUT STANDBY CONTROL U_RESET U_SS U_SCLK U_MOSI U_INTREQ U_MISO IR OUT SERIAL_TX SERIAL_RX OE1 SO1_U7 SO2_U9 SO1_U9 MUTE_PIC To enhance viewing, please print to A3 2MM 3W ST HEADER CN7 2MM 9W ST HEADER CN9 2MM 8W ST HEADER CN8 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 IO3 A2 A3 A5 A4 AT49BV002AN A0 A1 A6 1/O0 A7 A12 IO2 Vcc IO1 IO4 WE A15 IO5 A17 GND IO6 A14 A16 IO7 A13 RESET CE A9 A8 OE A10 A11 U32 C160 100N 50V X7R SM 0805 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 D2 D1 D0 A1 A2 A3 A4 OE_FLASH# A11 CS_FLASH# D7 D6 D5 D4 D3 1N4001 D17 R144 1U 35V EL C212 100K 0805 2K2 0805 8K2 0805 0805 R143 R145 1N4001 D18 10K 0805 R142 AP19129/5 DAC DSP Flash Circuit Diagram A17 A16 A13 A8 A7 A6 A5 A12 A10 A9 A14 A15 A18 WE_FLASH# 3.3V DSP AC_5V Cambridge Audio Azur 840C CD Player R141 4K7 0805 BC807-25 SM Q8 4K7 0805 10K 0805 R146 R131 BC807-25 SM Q2 1N4148 D20 10K 0805 R154 1N4148 D19 MPSA14 Q4 1N4004 D29 RELAY ME2-5S 2 RL3:A 1 high = unmute = relay on low = mute high = unmute ME2-5S OE1 2 ME2-5S RL1:A 1 2 RL2:A 1 62R 2W R140 +10V UNREG C270 470U 16V EL 31 1N 50V NP0 SM 0805 C189 1N 50V NP0 SM 0805 C183 1N 50V NP0 SM 0805 C68 F4 100N 50V X7R SM 0805 C117 1 PAD EMC M3 P1 POLYFUSE 1-1A 60V F5 POLYFUSE 1-1A 60V 47R R152 1N4002 Q6 1N4002 D6 1N4002 D4 1N4002 MPSA14 32R 2W R160 +10V UNREG AC_5V 1N4002 D10 1N4002 D13 1N4002 D11 1N4002 D14 1N4002 D12 RECTIFIER CHANGE TO SCHOTTKY 1N4002 D5 1N4002 D3 RECTIFIER CHANGE TO SCHOTTKY POLYFUSE 3.0A 60V F3 C61 To enhance viewing, please print to A3 1 PAD EMC M3 P4 1 PAD EMC M3 P3 1 PAD EMC M3 P2 F2 POLYFUSE 1-1A 60V 33N 250V 100N 100V 1N4002 2200U 35V EL C42 D9 C57 10K 0805 R161 1N4004 D30 0R 2W U49 VI 7815 100N 50V X7R SM 0805 C45 R86 -21V UNREG(2) Q18 1 VI TIP31 7805 7915 U24 VI 100N 50V X7R SM 0805 2 C109 100N 50V X7R SM 0805 C103 100N 50V X7R SM 0805 100N 50V X7R SM 0805 VI C108 1 7815 U22 C49 3 C50 VO 3 VO C106 3 VO 3 47N 16V ECHU SM C107 47N 16V ECHU SM VO 10K 0805 R166 BC817-25 Q13 5.1V D24 TIP31 Q10 3 47N 16V ECHU SM 100U 35V EL C16 VO 47N 16V ECHU SM BC817-25 Q11 470R 1206 3 Q12 R163 U31 10K 0805 R165 100N 50V X7R SM 0805 C138 BC817-25 VI U16 7915 C133 C102 +21V UNREG (2) 10K 0805 10K 0805 R167 220R 2W R133 470R 1206 2 100N 50V X7R SM 0805 C52 100N 50V X7R SM 0805 1 U14 VO C51 R164 100N 50V X7R SM 0805 100N 50V X7R SM 0805 VI 100U 35V EL -15V +15V +5V -15V(2) +15V(2) 47N 16V ECHU SM C244 BYG10G D2 100U 35V EL C105 100U 35V EL C104 47N 16V ECHU SM C249 BYG10G D22 (RIGHT) VI 7805 U17 D21 3 1 VI VI VI 2 7905 U48 VI BYG10G D23 100N 50V X7R SM 0805 C124 1 100N 50V X7R SM 0805 C114 VI 7905 U47 LM1117T_3 U26 2 BYG10G VO C63 3 7805 U27 C126 3 VO 47R 1206 1206 1 +5V_DAC 3.3V 10U 35V EL C247 -5V(2) 10U 35V EL VO 3 +5V_OSC C132 10U 35V EL C246 SHDN VI C69 C216 BYP VI ADJ VO 10N 50V X7R SM 0805 LT1761 ADJREG U42 VO 5 4 1.2V 4 5 3 3 1 5 4 LM1117T_3 1.2V VI VI 3K3 0805 R138 22K 0805 10V_R C112 R137 3K3 0805 R136 C224 3 2 C142 100N 50V X7R SM 0805 C237 VO 10U 35V EL SHDN VI 1.2V +5V_DIG 10U 35V EL C135 47N 16V ECHU SM C225 3 1 LT1761 2,8VREG U45 OSC_3.3V SHDN VI LT1761 2,8VREG U43 47N 16V ECHU SM C218 3 1 VI 100N 50V X7R SM 0805 C110 1 U25 7805 DAC2 Vd = 44mA 100N 50V X7R SM 0805 VO 7805 U36 10U 35V EL 22K 0805 10V_L R139 100N 50V X7R SM 0805 C236 U18 ADJ VO DSP Vint 150mA ADJ LT1763 ADJ REG U30 100N 50V X7R SM 0805 47N 16V ECHU SM 3 1 1 2 BYP VI 100N 50V X7R SM 0805 OSCILLATOR C193 C223 10N 50V X7R SM 0805 LT1761 ADJREG U44 47N 16V ECHU SM 3 1 DAC1 & DAC2 Vd = 44mA C272 47N 16V ECHU SM 3 C248 VI 7815 U51 100N 50V X7R SM 0805 VO R185 7805 U29 C116 3 2 -5V 10U 35V EL C271 10U 35V EL C221 DAC1 Vd = 44mA C65 logic gates = 5mA dir & dit = 25mA DSP Vext = 120mA etc = 60mA 3 100N 50V X7R SM 0805 VO VO VO 47N 16V ECHU SM 47R 1206 1206 C245 DAC1_VA_+5V R184 47N 16V ECHU SM ANALOGUE SUPPLY 100N 50V X7R SM 0805 C62 RS232 ABUS optical Tx/Rx = 30mA logic gates = 4mA pic circuitry = 100mA BC817-25 Q17 100U 35V EL C137 100U 35V EL C46 C64 10U 35V EL 1 AP19129/5 DAC DSP Supply Circuit Diagram 2R2 2W R67 2R2 2W R14 LOW - STANDBY HIGH - ON link R13 10U 35V EL C241 C240 GND 2 7815 1 GND 2 C43 +10V UNREG -21V UNREG +21V UNREG audio o/p mute relay 2R2 2W R12 2R2 2W R11 2200U 35V EL C59 C35 C58 C136 2,5MM 10W ST HEADER 100N 100V 2200U 35V EL C71 2200U 35V EL D8 C47 D7 100N 50V X7R SM 0805 100N 100V 100N 100V C34 C60 C44 C100 C101 33N 250V 100N 100V 10U 35V EL GND 2 1 GND POWER C254 C66 10U 35V EL RECTIFIER CHANGE TO SCHOTTKY C253 10U 35V EL C141 F1 100N 50V X7R SM 1206 10U 35V EL POLYFUSE 1-1A 60V 100N 50V X7R SM 1206 C128 100N 50V X7R SM 0805 2200U 35V EL C70 C118 C120 STANDBY CONTROL 2200U 35V EL 2200U 35V EL 2200U 35V EL GND 2 C115 C125 C130 10 9 8 7 6 5 4 3 2 1 C121 C140 100N 50V X7R SM 0805 C213 10N 50V ECHU SM C129 10U 35V EL 10U 35V EL GND 1 GND 2 10U 35V EL 1 C251 100N 50V X7R SM 0805 C127 GND 2 CN10 C119 2200U 35V EL 2200U 35V EL C25 GND 100N 50V X7R SM 0805 GND 2 1 GND 100U 35V EL GND 10U 35V EL C252 GND 2 C131 10U 35V EL C243 100N 50V X7R SM 0805 GND 1 GND 2 10U 35V EL C134 GND 2 C217 C211 C150 100N 50V X7R SM 0805 10U 35V EL GND 2 1 GND GND 2 GND BYP VO 2 10U 35V EL GND 2 VO VO 3 C111 4 5 4 5 47N 16V ECHU SM BYP 2V8_VREF_L 10N 50V X7R SM 0805 C226 C200 10U 35V EL C250 DAC2 _VA_+5V 47N 16V ECHU SM C197 (LEFT) 47N 16V ECHU SM 10U 35V EL C113 2V8_VREF_R C227 Cambridge Audio Azur 840C CD Player 10N 50V X7R SM 0805 C219 10U 35V EL 32 To enhance viewing, please print to A3 AP19129/4 DAC DSP Board Layout (Top Side) Cambridge Audio Azur 840C CD Player 33 To enhance viewing, please print to A3 AP19129/4 DAC DSP Board Layout (Bottom Side) Cambridge Audio Azur 840C CD Player 34 AP19132/6 Cambridge Audio Azur 840C DAC PCB Assembly BOM A P P ar t N o V a lue D e s c r i pt i o n F a c t or y P a r t N o Q ty C o m po n e n t I d e n t Resistors 220R 0R Resistor 0. 063W Resistor 0. 125W 2 4 R1, R10 R2, R89, R186, R187 10K Resistor 0. 063W 23 R3-R5, R21, R23, R26, R27, R37, R39, R41, R56, R86-R88, R130, R135, R142, R146, R154, R161, R165-R167 100R Resistor 0. 063W 26 2R2 47R 32R 2W 2R2 2W 2K 2 75R 0R 1K 430R 91R 100R 33R 3K 10K 4K 7 47R 300R 2K 7 820R 2K 4 2K 7 2K 0R 2K 330R 10K 5K 12K 1M 220R 2W 3K 3 22K 62R 2W 100K 8K 2 47R 33R 47R 100R 470R 10R Capacitors 10pF 50V 10pF 50V 47P 50V 100P 50V 220pF 50V Resistor 0. 063W Resistor 0. 063W Resistor 2W C ar bon Resistor 2W C ar bon Resistor 0. 063W Resistor 0. 063W Resistor 0. 063W Resistor 0. 063W Resistor 0. 063W Resistor 0. 063W Resistor pack Resistor pack Resistor ME L F type 0. 2W Resistor pack Resistor 0. 063W Resistor 0. 125W Resistor 0. 125W Resistor ME L F type 0. 2W Resistor 0. 125W Resistor 0. 125W Resistor 0. 125W Resistor 0. 125W Resistor 0. 063W Resistor ME L F type 0. 2W Resistor ME L F type 0. 2W Resistor 0. 125W Resistor 0. 125W Resistor ME L F type 0. 2W Resistor ME L F type 0. 2W 2W C ar bon Resistor 0. 063W Resistor 0. 063W 2W C ar bon Resistor 0. 063W Resistor 0. 063W 0. 25W metal film Resistor 0. 063W Resistor ME L F type 0. 2W Resistor 0. 125W Resistor 0. 125W Resistor 0. 063W 1 2 1 4 1 2 3 5 1 1 10 6 2 1 3 8 4 4 4 4 4 8 4 4 4 4 2 2 4 1 2 2 1 7 1 1 1 2 4 2 2 R6, R7, R15, R16, R17, R20, R22, R24, R25, R33, R38, R40, R42-R46, R61, R66, R70-R72, R85, R132,C273 position, C274 position R8 R9, R129 R160 R11, R12, R14, R67 R145 R18, R19 R28, R30, R64 R29, R34, R57, R58, R65 R31 R32 R35, R50, R60, R62, R63, R147- R151 R36, R49, R53- R55, R59 R47, R48 R51 R52, R131, R141 R91, R92, R104, R117, R118, R172, R184, R185 R75, R76, R101, R102 R77, R78, R103, R134 R79, R80, R105, R106 R81, R82, R107, R108 R83, R84, R109, R110 R90, R99, R100, R111, R114- R116, R162 R93, R120, R181 R183 R95, R97, R121, R123 R96, R98, R122, R124 R112, R155, R169, R173 R113, R171 R127, R159 R126, R128, R156, R158 R133 R136, R138 R137, R139 R140 R143, R174- R179 R144 R152 R153 R125, R157 R68, R69, R73, R74 R163, R164 R168, R170 N PO N PO N PO N PO N PO C er amic C er amic C er amic C er amic C er amic 4 5 6 9 2 C 172, C 173, C 190, C 191 C 37- C 41 C 201, C 202, C 238, C 239, C 256, C 257 C 17, C 18, C 22, C 264- C 269 C 206, C 207 150pF 63V PP Polypr opelene 4 C 176, C 177, C 194, C 195 1N 50V N PO C er amic 12 1N 50V N P0 C er amic 9 C72, C73, C122, C123, C170, C171, C180, C181, C198, C199, C203, C214 C 1, C 5, C 6, C 11, C 13, C 68, C 183, C 189, C 210 1N 5 63V PP Polypr opelene 4 C 174, C 185, C 188, C 192 10N 50V 33nF 250V X 7R C er amic C er amic or Polyester 5 2 C 30, C 216, C 219, C 223, C 226 C 61, C 101 47N 16V EC H U 51 C15, C48, C49, C50, C53, C56, C63, C67, C106, C107, C111, C139, C151, C153, C155, C157, C158,C178, C186, C187, C193, C196, C197, C200, C204, C205, C218, C220, C221, C225, C228-C235, C242, C244, C245, C248, C249, C255, C258-C263 100N 50V X 7R C er amic 21 C 75- C 84, C 86- C 96 N ot e s Rated cur r ent 2A Sur ge cur r ent 10A mount on for med leads above PC B mount on for med leads above PC B mount on for med leads above PC B mount on for med leads above PC B 7.2 X 4.5 ( If different manufacturer please send sample) 7.2 X 4.5 ( If different manufacturer please send sample) Note: resistors, capaciotrs and other'generic' electronic componetents are not usually stocked by the manufacturer. Please obtain these locally. 35 AP19132/6 Cambridge Audio Azur 840C DAC PCB Assembly BOM A P P ar t N o V a lue D e s c r i pt i o n F a c t or y P a r t N o Q ty C o m po n e n t I d e n t N ot e s C2, C4, C7, C9, C12, C14, C21, C19, C20, C23, C24, C27, C28, C29, C32, C33, C43, C45, C47, C51, C52, C62, C69, C74, C85, C97, C102, C103, C108-C110, C114, C116, C117, C124, C126, C128, C130, C132-C134, C138, C140, C142, C144-C148, C160, C161-C163, C164, C168, C169, C215, C222, C236, C237, C240, C243, C251, C275-C277 100N 50V X 7R C er amic 66 100N 50V 100N 50V 100N 100V 220N 50V 470N 50V 10U 16V X 7R C er amic X 7R C er amic Monolythic C er amic X 7R C er amic X 7R C er amic Polar E lectr olytic 2 2 5 2 2 10 10U 35V Polar E lectr olytic 27 10U 35V N P 100U 35V 470U 16V 2200U 35V Transistors Polar E lectr olytic Polar E lectr olytic Polar E lectr olytic 8 7 1 10 C 253, C 254 C 278, C 279 C 35, C 44, C 59, C 60, C 100 C 184, C 209 C 182, C 208 C 3, C 8, C 10, C 26, C 31, C 36, C 165- C 167, C 212 C34, C64-C66, C112, C113, C115, C125, C127, C129, C131, C135, C141, C143, C149, C150, C211, C217, C224, C227, C241, C246, C247, C250, C252, C271, C272 C 54, C 55, C 98, C 99, C 152, C 154, C 156, C 159 C 16, C 25, C 46, C 104, C 105, C 137, C 213 C 270 C 42, C 57, C 58, C 70, C 71, C 118- C 121, C 136 PN P NPN (Darlington) N PN ( Power ) N PN B C 807- 25 SM MPSA14 T IP31 B C 817- 25 6 2 2 5 Q 2, Q 3, Q 5, Q 7- Q 9 Q4, Q6 Q 10, Q 11 Q 1, Q 12, Q 13, Q 17, Q 18 RED LED MV50640 1 D1 BYG10G 8 D2, D21-D23, D25-D28 W ith C ambr idge Audio sleeve AP19456/* Mount on heatsink AP19208/3 Diodes PY962 PY1191 SMT DIODE SCHOTTKY RECTIFIER DIODE 1A D IO D E SMT DIODE D IO D E D IO D E 6.2V ZENER Integrated Circuits IR Receiver Opto-isolator Quad NAND CMOS OPTICAL RECEIVER HEX Inverter Dual 4-1 MUX Dual 4-1 MUX Quad OR Gates OPTICAL TRANSMITTER SPDIF RX IC SPDIF TXCIC D SP +15V REGULATOR -15V REGULATOR +5V REGULATOR +3.3V REGULATOR Quad Buffer Quad Buffer Reset IC Hex Inverter PY990 PY990 PY363 PY980 PY979 PY 982 PY986 PY988 PY 985 +1.2V REGULATOR Flash RO M OP-AMP single OP-AMP balanced OP-AMP dual REGULATOR 2.8V REGULATOR -5V REGULATOR D AC PY987 PY987 PY 981 SB1H100 1N 4004 BAS16 1N 4001 1N 4148 BZX79-C6V2 4 D3-D6 IR housing (AP17339/3) with LED MV50640 & TSOP1836 IR Receiver SUB : 1. MBR1100TR = International rectifier 10 D 7- D 14, D 29, D 30 2 D15, D16 2 D 17, D 18 2 D 19, D 20 1 D24 TSOP1836 IR 1 U1 RECEIVER OP4N25 1 U2 4011 1 U3 RX179AT 2 U4, U5 74VHC14 2 U6, U15 74VHC153 1 U7 74HCT153 1 U9 74VHC32 1 U8 TX179AT 1 U10 CS8416CZ 1 U11 CS8406CZ 1 U12 AD SP- B F532B ST Z 400 1 U 13 7815 4 U14, U22, U49, U51 7915 2 U16, U24 7805 6 U17, U25, U27, U29, U31, U36 LM1117T_3.3 2 U18, U26 74VHC125 1 U19 74HCT125 1 U20 DS1818 1 U21 74HCU04 1 U23 MAX202CSE 1 U28 LT1963AET 1 U30 AT 49B V 002AN 70T U 1 U 32 OPA842ID 4 U33, U34, U37, U38 OPA1632DGN 2 U35, U39 OPA2134UA 6 U40, U41, U46, U50, U52, U53 LT1761ES5-BYP 2 U42, U44 LT1761ES5-2.8 2 U43, U45 7905 2 U47, U48 AD 1955ARS 2 U 130, U 131 Pr ogr am with Softwar e Connectors Phono Socket dual hor izontal AV 2- 8. 4- 14/E C 1 CN1 or ange inser t, gold plated Note: resistors, capaciotrs and other'generic' electronic componetents are not usually stocked by the manufacturer. Please obtain these locally. 36 AP19132/6 Cambridge Audio Azur 840C DAC PCB Assembly BOM A P P ar t N o V a lue D e s c r i pt i o n F a c t or y P a r t N o Q ty 9 W ay D T ype PC B Right Angle Phono Socket single 2x7 W ay V er tical H eader 2MM 3W ST HEADER 2MM 8W ST HEADER 2MM 9W ST HEADER 2,5MM 10W ST HEADER Phono Socket vertical dual X L R SK T Male 3.5mm JACK SKT 1 AV - 8. 4- 8E S B3B-PH-KS B9B-PH-KS B9B-PH-KS B10B-XH-A 3 1 1 1 1 1 AV2-8.4-13EL 5032A CKX-3.5-12 1 2 1 C o m po n e n t I d e n t N ot e s CN2 C N 3- C N 5 CN6 CN7 CN8 CN9 CN10 CN12 C N 13, C N 14 CN100 black inser t, gold plated white insert (top)/red insert (bottom), gold plated latching type Crystal CH015M2457600AFHJ00 24.576MHz Inductor 47uH Relay ME2-5S Fuse 3. 0A 1. 1A Polyfuse Polyfuse W H 60- 300 W H 60- 110 1 X1 3 L 2- L 4 3 RL1-RL3 1 4 F3 F1, F2, F4, F5 Idc min= 150mA Note: resistors, capaciotrs and other'generic' electronic componetents are not usually stocked by the manufacturer. Please obtain these locally. 37 L N E 10U 5A T68-2A MAINS L2 PAD EMC M3 P1 1N X1/Y1 C&C C1 1 J5 SWITCH 2 1N X1/Y1 C&C C2 SWITCH 1 J4 TO ON/OFF SWITCH To enhance viewing, please print to A3 IEC PCB MOUNT Rong Feng SS-7B-1 CN3 10U 5A T68-2A MAINS L1 TO TRANSFORMER BLUE J1 TO VOLTAGE SELECTOR PCB J3 TO DAC OCB ANALOG A + GND A ANALOG A ANALOG B + GND B ANALOG B DIGITAL + DIG GND RELAY 10V TRANSISTOR COLLECTOR CN2 10 9 8 7 6 5 4 3 2 1 2,5MM 10W ST HEADER AP19125/3 Mains PCB Schematic X2 47N SUPPRESSION C3 20MM T2AL FU3 RL2:A 1 RELAY 1 RELAY 2 7 8 4 5 4 5 7 8 RL1:A 2 Cambridge Audio Azur 840C CD Player RELAY RELAY RELAY RELAY 6 RL2:C 3 RL2:B 3 RL1:B 6 RL1:C ANALOG A + GND A ANALOG A ANALOG B + GND B ANALOG B DIGITAL + DIG GND 2,5MM 8W ST HEADER FROM TRANSFORMER 8 7 6 5 4 3 2 1 CN1 38 To enhance viewing, please print to A3 AP19125/3 Mains PCB Board Layout (Top Side) Cambridge Audio Azur 840C CD Player 39 To enhance viewing, please print to A3 AP19125/3 Mains PCB Board Layout (Bottom Side) Cambridge Audio Azur 840C CD Player 40 AP19128/2 Cambridge Audio Azur 840C CD Player Mains PCB BOM AP Part No Value Description CAPACITORS 1n X1/Y1 10mm pitch Polyester Capacitor 47N X 2 15mm pitch Polyester C apacitor CONNECTORS IEC-SOCKET 3 Way IEC Connector B10B-XH-A JST 10 Way 2.54mm B8B-XH-A JST 8 Way 2.54mm MISCELLANEOUS Component Ident Qty 2 1 1 C1, C2 C3 CN3 CN2 CN1 1 1 Factory Part No. 15mm Pitch 2336-003910-002 T68-2A 32.5 Turns with UL Heatsink AP13570/1 10uH 5A Mains Inductor 2 L1, L2 ME - 11 005 Relay 5V ME - 11 2A slow blow fuse 20mm LBC (low breaking capacity) 20MM Fuse Holder Fuse C over 2 RL 1, RL 2 1 FU3 4030-618002-001 3 3 FU3 FU 3 4034-000030-000 4031- 050100- 001 T2AL Notes Note: resistors, capacitors and other 'generic' electronic components are not usually stocked by the manufacturer. Please obtain these locally. 41 Cambridge Audio Azur 840C CD player IC Pin Layout Details TA2153FN Servo PCB (U1) TC9462FG Servo PCB (U2) 42 MCU TMP87EP26F-1J15 Servo PCB (U3) TA2092N Servo PCB (U6) 7808 Servo PCB (U7) 7805 Servo PCB (U8) DAC PCB (U17, U25, U27, U29, U31 & U36) C8050D Servo PCB (Q7, Q8, Q11 & Q12) 43 9014C Servo PCB (Q13) C8550 Servo PCB (Q9 & Q10) 9015C Servo PCB (Q1) TSOP1836SS3V Front Panel PCB (U1) PIC16F877A-I/P Front Panel PCB (U2) DS18030-050 Front Panel PCB (U3) 44 PIC12C508A-I/P Front Panel PCB (U4) BA6218 Front Panel PCB (U5) BC337 Front Panel PCB (Q1, Q2, Q3 & Q4) TSOP1836 DAC PCB (U1) OP4N25 DAC PCB (U2) 4011 DAC PCB (U3) RX179AT DAC PCB (U4 & U5) 45 74VHC14 DAC PCB (U6 & U15) 74VHC153 DAC PCB (U7) 74HCT153 DAC PCB (U9) 74VHC32 DAC PCB (U8) TX179AT DAC PCB (U10) CS8416CZ DAC PCB (U11) 46 CS8406CZ DAC PCB (U12) ADSP-BF532BSTZ400 DAC PCB (U13) 7815 DAC PCB (U14, U22, U49 & U51) 47 7915 DAC PCB (U16 & U24) LM1117T_3.3 DAC PCB (U18 & U26) 74VHC125 DAC PCB (U19) 74HCT125 DAC PCB (U20) DS1818 DAC PCB (U21) 48 74HCU04 DAC PCB (U23) MAX202CSE DAC PCB (U28) LT1963AET DAC PCB (U30) AT49BV002AN70TU DAC PCB (U32) OPA8421D DAC PCB (U33, U34, U37 & U38) 49 OPA1632DGN DAC PCB (U35 & U39) OPA2134UA DAC PCB (U40, U41, U46, U50, U52 & U53) LT1761ES5-BYP DAC PCB (U42 & U44) LT1761ES5-2.8 DAC PCB (U43 & U45) 7905 DAC PCB (U47 & U48) AD1955ARS DAC PCB (U130 & U131) BC807-25 DAC PCB (Q2, Q3, Q5, Q7, Q8 & Q9) 50 MPSA14 DAC PCB (Q4 & Q6) TIP31 DAC PCB (Q10 & Q11) BC817-25 DAC PCB (Q1, Q12, Q13, Q17 & Q18) 51 Circuit Description To Follow. 52 Cambridge Audio Gallery Court Hankey Place London SE1 4BB England AP21487/1 Azur 840C CD Player Upgrade Software Instructions www.cambridge-audio.com Introduction The following instructions are a step-by-step guide on how to upgrade the DSP (Digital Signal Processor) chip (Type is Analog Devices ADSP-BF532BSTZ400 and ident on PCB is U13) and the PIC Microcontroller chip (Type is Microchip PIC16F877A-I/P and ident on PCB is U2), inside the 840C CD Player. Equipment Required 1x 1x 1x 840C CD Player with mains lead. Desktop PC or Laptop with Windows XP Service Pack 2 installed, and with one 9 way D-Type serial communications port free. 9 way female-female D-Type Null Modem Cable. Example cable to use is: Product Code 976-880 from Farnell (http://uk.farnell.com). Pin layout and example cable pictures are shown below. Pin Layout Example Cable 1x 840C Loader Program installed on PC or Laptop (840C Loader Program.zip). 53 1x 1x Latest 840C DSP Software (AP20059X 740C-840C DSP software upload file VX.X (6.1.ZZ).bin). Latest 840C PIC Software (AP20058X 840C VX.X.HEX). Note: All the required software can be found on the Service Extranet. Please download and save all software onto your PC or Laptop Hard Drive. Checking Software Version Before you start, you need to make a note of the current version of software installed in the 840C. To do this: 1. Connect the 840C to the mains supply using an IEC power cord, making sure the voltage selector switch is set to the correct voltage for your local mains supply. 2. Switch the 840C on using the Power On/Off switch on the rear panel and the Standby/On button on the front panel. 3. When the 840C has switched on and is ready to be used (i.e. “No Disc” is displayed on the front panel LCD), press the “Menu” button on the front panel 4 times until “SOFTWARE VERSION XX / YYY / Z.Z” is displayed on the front panel LCD. XX is the DSP version number, YYY is the DSP build number and Z.Z is the PIC version number. Note down the full software version number. 4. Switch the 840C off using the Power On/Off switch on the rear panel. Upgrade Instructions – PIC Software To upgrade the 840C software, please carry out the following: 1. Install the 840C Loader Program onto your PC or Laptop (by following the on screen instructions), by unpacking 840C Loader Program.zip and running setup.exe. Make sure the Loader Program is not running before continuing. 2. Connect one end of the Null Modem cable to a 9 way D-Type spare socket on the PC or Laptop. 3. Connect the other end of the Null Modem cable to the RS232C port on the back of the 840C. 54 4. Switch the 840C on using the Power On/Off switch on the rear panel, while pressing and holding the Standby/On button on the front panel. This will then display “DOWNLOAD!” on the front panel LCD. This means the 840C is ready to receive new software. 5. Load the 840C loader software on your PC or Laptop by pressing “Start”, “Programs”, “840C” then select the “Loader” icon to start up the loader software. 6. The picture below shows the first screen that appears on your PC screen. Select the number of the communications (Comm) port that you plugged the Null Modem into on your PC or Laptop, then press “OK”. 7. The window that now appears is shown below. 55 8. If the wrong comm port is selected, please close down the software and repeat the process, from step 6, above. 9. Select the “Load File” button corresponding to “PIC Software Download.” 10. This will then bring up a browse menu. Please locate the latest PIC software (the file extension is .HEX) for the 840C and press “Open.” 11. The loader window will now display “File Loaded – VX.X,” where X.X is the version number, as shown below. 56 12. Now press the “Download Code” button corresponding to “PIC Software Download” to start the process. “Programming PIC Processor…” will now display on the PC screen and the progress bar will start to move. Also “Loading PIC…” will be displayed on the 840C front panel LCD. 57 13. When the process is complete, the program will display the following: Also, the 840C will return to its Standby mode. 14. If at any time during the process, there is a failure, an error message will be displayed. If this occurs, please repeat the steps above. If the problem persists, please seek advice from our servicing department. 15. Switch the unit off via the On/Off switch on the rear panel. The PIC has been successfully updated. Upgrade Instructions – DSP Software 58 1. Make sure the 840C is switched off. 2. Repeat steps 1 to 9 for the PIC software above. Note: Please skip step 1 if you already have the PC/Laptop installer program installed. Also make sure you press and hold the Standby/On button while switching on the 840C via the On/Off switch on the rear panel. 3. Select the “Load File” button corresponding to “DSP Software Download.” 4. This will then bring up a browse menu. Please locate the latest DSP software (the file extension is .BIN) for the 840C and press “Open.” 5. The loader window will now display “File Loaded!” as shown below. 6. Now press the “Download Code” button corresponding to “DSP Software Download” to start the process. “Programming DSP…” will now display on the 59 screen and the progress bar will start to move. Also “Loading DSP…” will be displayed on the 840C front panel LCD. 7. When the process is complete, the program will display the following: Also, the 840C will return to its Standby mode. 8. If at any time during the process, there is a failure, an error message will be displayed. If this occurs, please repeat the steps above. If the problem persists, please seek advice from our servicing department. 60 Testing 1. Repeat the procedure “Checking Software Version” above and note the new software version. This should be the same number as the numbers located on the file names of the HEX and BIN files. In this example the HEX version is 1.1 (see item 10 PIC picture above) and BIN build version is 065 (see item 4 DSP picture above). 2. Switch the unit off via the On/Off switch on the rear panel. 3. Remove 9 way D-Type Null Modem cable from the 840C. 4. Switch the unit on and place a CD in the tray. 5. Close the CD tray and play the CD. 6 Test all front panel buttons and audio outputs. If the unit is functioning correctly, then the upgrade is complete. The DSP has been successfully updated. The process is now complete. 61
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