Aiwa NSX-AK772 Service Manual Download

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SERVICE MANUAL

NSX-AK772

COMPACT DISC STEREO

CASSETTE RECEIVER

BASIC TAPE MECHANISM: 2ZM-3MK2YPR4N

BASIC CD MECHANISM: 4ZG-1 VOS1DSH

If requiring information about the CD mechanism, see Service Manual of 4ZG-1,

S/M Code No.09-985-249-8OT.

S/M Code No. 09-989-293-9OT

REVISION

SYSTEM

NSX-AK772

CD-CASSEIVER

CX-NAK772

SPEAKER

SX-NAV704

SX-CR675

aiwa

Summary of Contents for NSX-AK772

Page 1: ...E MECHANISM 2ZM 3MK2YPR4N BASIC CD MECHANISM 4ZG 1 VOS1DSH If requiring information about the CD mechanism see Service Manual of 4ZG 1 S M Code No 09 985 249 8OT S M Code No 09 989 293 9OT R E V I S I O N SYSTEM NSX AK772 CD CASSEIVER CX NAK772 SPEAKER SX NAV704 SX CR675 aiwa ...

Page 2: ...NT 25 26 SCHEMATIC DIAGRAM 3 MAIN 2 2 27 28 WIRING 3 PRO 29 30 SCHEMATIC DIAGRAM 4 PRO 31 32 WIRING 4 SW 33 WIRING 5 AC1 AC2 34 WIRING 6 DECK 35 SCHEMATIC DIAGRAM 5 TUNER FRONT END 36 IC BLOCK DIAGRAM 37 43 IC DESCRIPTION 44 45 FL GRID ASSIGNMENT ANODE CONNECTION 46 47 ADJUSTMENT TUNER DECK 48 49 PRACTICAL SERVICE FIGURE 50 MECHANICAL EXPLODED VIEW 1 1 51 52 MECHANICAL PARTS LIST 1 1 53 TAPE MECHA...

Page 3: ... Cassette deck section Track format 4 tracks 2 channels stereo Frequency response CrO2 tape 50 Hz 16000 Hz Normaltape 50 Hz 15000 Hz Recording system AC bias Heads Deck 1 Playback head x 1 Deck 2 Recording playback head x 1 erase head x 1 SPECIFICATIONS Compact disc player section Laser Semiconductor laser λ 780nm D A converter 1 bit dual Signal to noise ratio 85 dB 1 kHz 0 dB Harmonic distortion ...

Page 4: ...oscilloscope Select a discharging resistor referring to the following table Note The reference numbers C101 C102 of the electrolytic capacitors can change depending on the models Be sure to check the reference numbers of the charging capacitor on schematic diagram before starting the discharging work 2 Check items before exchanging the MICROCOMPUTER Be sure to check the following items before exch...

Page 5: ...c capacitor C113 that is connected to VDD of the MICROCOMPUTER with tweezers 3 Connect the AC power cord again If the MICROCOMPUTER returns to the normal operation the MICROCOMPUTER is good Note The reference number or MICROCOMPUTER pin number of transistor Q110 and electrolytic capacitor C113 can change depending on the models Be sure to check the reference numbers on schematic diagram before sta...

Page 6: ...FROM A DISTANCE OF MORE THAN 30cm FROM THE SURFACE OF THE OBJECTIVE LENS ON THE OPTICAL PICK UP BLOCK Caution Invisible laser radiation when open and interlocks defeated avoid exposure to beam Advarsel Usynlig laserståling ved åbning når sikkerhedsafbrydere er ude af funktion Undgå udsættelse for stråling VAROITUS Laiteen Käyttäminen muulla kuin tässä käyttöohjeessa mainitulla tavalla saataa altis...

Page 7: ... ZENER MTZJ5 1C 87 A40 438 080 ZENER MTZJ4 7A 87 A40 234 080 ZENER MTZJ5 6A 87 A40 115 060 DIODE RS603M 87 017 931 080 ZENER MTZJ5 6B 87 A40 370 090 DIODE RK46 P20 87 017 178 090 DIODE IN5402 BD54 87 A40 116 060 DIODE RS403L D 51 87 A40 348 080 ZENER MTZJ3 3A 87 A40 442 080 ZENER MTZJ9 1A 87 A40 269 080 C DIODE MC2836 87 A40 270 080 C DIODE MC2838 MAIN C B C103 87 016 658 090 CAP E 4700 35 SMG C10...

Page 8: ...30 16 SME C415 87 010 185 080 CHIP CAPACITOR 3900P K C416 87 010 185 080 CHIP CAPACITOR 3900P K C457 87 010 404 080 CAP ELECT 4 7 50V C458 87 010 404 080 CAP ELECT 4 7 50V C501 87 A10 060 080 C CAP S 0 18 16 KB C502 87 A10 060 080 C CAP S 0 18 16 KB C503 87 012 154 080 C CAP S 150P 50 CH C504 87 012 154 080 C CAP S 150P 50 CH C505 87 012 145 080 CAP CHIP S 270P CH C506 87 012 145 080 CAP CHIP S 27...

Page 9: ...AL SP 4P32SV1 05 J601 87 A60 426 010 JACK PIN 6P YKC21 3835 J801 87 033 239 010 TERMINAL HSP 154V 2 J940 81 754 629 010 CONNECTOR XH 2P UL L201 87 003 383 010 COIL 1UH S L202 87 003 383 010 COIL 1UH S L301 87 A50 049 010 COIL TRAP 85K COI L302 87 A50 049 010 COIL TRAP 85K COI L351 87 007 342 010 COIL OSC 85K BIAS L771 87 A50 266 010 COIL FM DET 2N TOK L772 87 A90 052 010 FLTR CFMT 450A TOK L781 87...

Page 10: ... 448 080 LED SLR 56PTT31 GRN LED431 87 A40 448 080 LED SLR 56PTT31 GRN LED432 87 A40 448 080 LED SLR 56PTT31 GRN LED433 87 A40 448 080 LED SLR 56PTT31 GRN LED434 87 A40 448 080 LED SLR 56PTT31 GRN LED435 87 A40 448 080 LED SLR 56PTT31 GRN LED436 87 A40 448 080 LED SLR 56PTT31 GRN LED437 87 A40 448 080 LED SLR 56PTT31 GRN LED444 87 070 278 010 LED SLZ 738A 24 S LED445 87 070 290 010 LED SLZ 936 30 ...

Page 11: ...CAP S 0 1 25 J B C504 87 A10 804 080 C CAP S 0 1 25 J B C505 87 A10 804 080 C CAP S 0 1 25 J B C506 87 A10 804 080 C CAP S 0 1 25 J B C509 87 010 112 080 CAP E 100 16 M SME C510 87 010 221 080 CAP E 470 10 M SME C511 87 A10 891 080 CAP E 4 7 25 SME K C512 87 A10 800 080 C CAP S 6800P 16 J B C513 87 010 374 080 CAP E 47 10 M SME C514 87 010 196 080 C CAP S 0 1 25 Z F C515 87 010 401 080 CAP E 1 50 ...

Page 12: ...8 410 SOL ASSY 27 SW1 87 A90 248 019 SW MICRO ESE11SH2CXQ SW2 87 A90 248 019 SW MICRO ESE11SH2CXQ SW3 87 A90 248 019 SW MICRO ESE11SH2CXQ SW4 87 036 110 010 SW MICRO SPPB62 SW5 87 036 110 010 SW MICRO SPPB62 SW6 87 036 110 010 SW MICRO SPPB62 SW8 87 A90 248 019 SW MICRO ESE11SH2CXQ SW9 87 A90 248 019 SW MICRO ESE11SH2CXQ W001 82 ZM3 601 019 RBN CORD 4P 75 HEAD 1 C B 85 ZM3 602 010 PWB FLEX A HEAD ...

Page 13: ...025 E C B 2SA933 2SA1296 CSC4115 E C B B C E 2SK2937 G D S S G D 2SK2158 D G S 2SK543 TB 4 5 E B C 2SA1235F 2SC2714 2SC3052F CMBT5401 CMBT5551 CSD1306E DTA114WK DTA123EKA DTA123JK DTA144WK DTC143TK KTA1298Y RN1410 RT1N141C RT1N144C RT1N441C RT1P141C RT1P144C RT1P441C 2SD2494 2SD2495 FN1016 FP1016 1 3 ...

Page 14: ...BLOCK DIAGRAM 1 PRO 1 4 ...

Page 15: ...15 16 BLOCK DIAGRAM 1 MAIN FRONT ...

Page 16: ...1 7 1 8 ...

Page 17: ...19 20 SCHEMATIC DIAGRAM 1 MAIN 1 2 ...

Page 18: ...2 1 2 2 3 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H I J K L M N O P Q R ...

Page 19: ...2 3 2 4 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 ...

Page 20: ...25 26 SCHEMATIC DIAGRAM 2 FRONT ...

Page 21: ...27 28 SCHEMATIC DIAGRAM 3 MAIN 2 2 ...

Page 22: ...2 9 3 0 ...

Page 23: ...31 32 SCHEMATIC DIAGRAM 4 PRO ...

Page 24: ...33 3 4 WIRING 5 AC1 AC2 1 1 2 3 4 5 A A B B C C D D E E F F G G H H I I J J K K L L M M N N O O P P Q Q R R S S T T U U ...

Page 25: ...WIRING 6 DECK 3 5 ...

Page 26: ...SCHEMATIC DIAGRAM 5 TUNER FRONT END 3 6 ...

Page 27: ...IC BLOCK DIAGRAM 3 7 IC M62439SP IC BU4066BCF ...

Page 28: ...3 8 IC BU2092F IC M65847AFP ...

Page 29: ...3 9 IC BU4094BCF IC BU4052BCF ...

Page 30: ...4 0 IC NJM2152M IC BA3835S ...

Page 31: ...IC BA7762AFS 4 1 IC MSM6654A 521GS KR1 ...

Page 32: ...4 2 IC LA1837NL IC M62463FP ...

Page 33: ...4 3 IC M62445FP 600D IC LC72131D ...

Page 34: ...nnot be turned on 20 22 KEY 1 3 I KEY input A D 23 I CD SW I CD mechanical switch A D converter input 24 I JOG I JOG dial A D level input 25 I TU SIG MS I Tuner signal and deck music sensor signal input 26 I SPEANA I A D input for spectrum analyzer display 27 I WRQ RDS CLK I CD WRQ input TUNER RDS CLOCK input 28 I TM BASE I REFERENCE CLOCK input for timer watch 29 I RMC I System remote control sig...

Page 35: ...utput DECK1 CAM switch data input 70 P11 CST 1 I O FL segment P11 output DECK1 cassette detect switch data input 71 P10 REA I O FL segment P10 output DECK2 side A record OK switch data input 72 VDD 4 Power supply input 73 81 P9 P1 O FL segment P1 P9 output 82 O KSCAN O Switch SCAN timing output 83 TRAY CLS O CD TRAY CLOSE data output 84 TRAY OPEN O CD TRAY OPEN data output 85 DISH FWD O CD turntab...

Page 36: ...FL BJ610GK 4 6 FL GRID ASSIGNMENT ANODE CONNECTION GRID ASSIGNMENT ...

Page 37: ...ANODE CONNECTION 4 7 ...

Page 38: ...ings Test point TP8 Lch TP9 Rch Adjustment location L981 1 3 603kHz TC941 1404kHz Method Set up TC941 to center before adjustment the level at 603kHz is adjust to maximum by L981 1 3 Then the level at 1404kHz is adjust to maximum by TC941 6 SW Tracking Adjustment Settings Test point TP8 Lch TP9 Rch Adjustment location L941 5 9MHz TC943 17 9MHz Method Set up TC943 to center before adjustment The le...

Page 39: ...signals and check that the output is 0dB 3 5dB tortion o that mes 0V is less e level he level 1 so that Hz Hz with w e test t EV TUNER SECTION FM SECTION IHF Sensitivity Less than 10 9 9dB THD 3 at 87 5 98 0 108 0MHz S N 50dB Quieting sensitivity Less than 35dB at 98 0MHz Signal to noise ratio Mono More than 72dB Stereo More than 66dB at 98 0MHz Distortion Mono Less than 1 2 Stereo Less than 2 0 a...

Page 40: ... TR HT SINK ASSY M 3MK2 YPR4N PLATE EARTH MIC 1 2 3 4 5 6 7 11 10 9 8 17 16 18 19 20 21 29 22 28 27 31 32 40 30 33 34 35 29 36 51 49 50 37 38 39 42 43 44 48 41 45 46 47 4 HT SINK DIODE 4ZG 1 VOS1DSH FRONT C B MAIN C B PRO C B AC1 C B SW C B a d d e g h h e c b f f HT SINK FIN F4 HT SINK PRO HT SINK TR PRO AC2 C B ...

Page 41: ...6 021 010 KEY ASSY DISC 28 88 NF6 026 010 KEY POWER 29 87 NF8 220 010 DMPR 150 30 88 NF6 025 010 KEY OPEN 31 88 NH6 004 010 PANEL TRAY H6 32 88 NF6 030 010 KEY ASSY FUN 33 88 NF6 036 010 KEY MIC 34 88 NFT 201 010 GUIDE LED PRLGC 35 88 NH6 012 010 KEY ASSY OPE H6 36 88 NF6 027 010 KEY BBE 37 88 NHT 004 010 KEY PBC H26 38 88 NF6 037 010 KEY REC 39 88 NF6 029 110 KEY JOG 40 88 NF6 611 010 FL BJ610GK ...

Page 42: ...SM EXPLODED VIEW 1 1 54 1 A A 42 16 15 14 13 12 11 10 17 7 9 18 19 4 6 20 5 22 21 24 23 25 26 29 29 27 28 3 2 HEAD 1 C B DECK 1 HEAD 2 C B DECK 2 18 DECK 2 PH DECK 1 RPH DECK 2 DECK 1 DECK 2 DECK 2 57 DECK 1 B B A ...

Page 43: ...32 82 ZM3 305 01K GEAR CAM M2 33 82 ZM1 227 21K LVR TRIG 34 82 ZM3 306 11K LVR FR M2 35 82 ZM1 265 119 SPR E TRIG 36 82 ZM1 236 019 CAPSTAN N 2 41 5 37 82 ZM1 239 019 CAPSTAN N 2 2 41 7 38 82 ZM1 322 019 SPR T FR60 39 82 ZM1 220 219 GEAR IDLER 40 82 ZM3 616 019 RING MAGNET 4 41 82 ZM1 216 31K GEAR REEL 42 87 A90 319 010 HEAD PH HADKH2 FPC 42 87 A90 320 010 HEAD RPH HADKH5 FPC 43 82 ZM1 225 21K GEA...

Page 44: ...screwdriver tip into the gap between the PANEL FR and the PANEL SPKR Tap the head of the flat head screwdriver with the plastic hammer head and create the clearance as shown in Fig 1 2 Insert the cut chisel in the clearance and tap the head of the cut chisel with plastic hammer as shown in Fig 2 to remove the PANEL FR 3 Place the speaker horizontally Tap head of the cut chisel with plastic hammer ...

Page 45: ... YJ7B Y1ST 6 87 YS1 004 010 GRILLE FRAME ASSY R275 7 87 YS1 002 010 GRILLE FRAME R275 8 81 VSA 009 010 CORD BUSH R275 9 87 YS6 002 010 SPKR CORD Y R275 10 87 YS6 601 010 SPKR 100 R275 11 87 010 384 010 CAP E 100 25 SME R275 12 87 YS8 901 010 IB YJ ECA O R275 YJBNCC YJSTNC YJSTNCC 12 87 YS8 906 010 IB Y 9L O R275 YJBNC YSTNC YBNCC YSTNCC 12 87 YS8 911 010 IB YJ ECA T R275 YJ7BNL Y1STNL SPEAKER PART...

Page 46: ...2 11 IKENOHATA1 CHOME TAITO KU TOKYO110 JAPAN TEL 03 3827 3111 L Printed in Singapore A4 931261 9301978 ...

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