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3 7 63 1515 0
SERVICE MANUAL
TE
L 13942296513
STEREO CAR CD RECEIVER
This Service Manual is The "Revision Publishing" and replaces "Simple Manual"
(S/M Code No. 09-023-455-0T1)
www
.
http://www.xiaoyu163.com
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u163
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S/M Code No. 09-023-455-0R1
http://www.xiaoyu163.com
CDC-X927M
2 9
8
Q Q
3
6 7
1 3
1 5
BASIC CD MECHANISM : BZG-3 CNF
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YUC(ST)
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2 8
0 5
8
2 9
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2 8
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9 9
9 9

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Summary of Contents for Aiwa CDC-X927M

  • Page 1 CDC-X927M YUC(ST) 3 7 63 1515 0 SERVICE MANUAL L 13942296513 BASIC CD MECHANISM : BZG-3 CNF STEREO CAR CD RECEIVER This Service Manual is The “Revision Publishing” and replaces “Simple Manual” (S/M Code No. 09-023-455-0T1) u163 S/M Code No. 09-023-455-0R1...
  • Page 2 http://www.xiaoyu163.com SPECIFICATION -1/1 3 7 63 1515 0 RADIO SECTION (FM) Frequency Range: 87.5 MHz - 108 MHz Usable Sensitivity: 12.7 dBf 50 dB Quieting Sensitivity: 17.2 dBf IF Rejection: 100 dB Frequency Response: 30 Hz - 15,000 Hz S/N Ratio: 70 dB Stereo Separation: 35 dB at 1 kHz...
  • Page 3 http://www.xiaoyu163.com PROTECTION OF EYES FROM LASER BEAM DURING SERVICING -1/1 3 7 63 1515 0 CAUTION This set employs laser. Therefore, be sure to follow carefully the instructions below when servicing. Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardousradiation exposure.
  • Page 4 Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL CDC-X927M YUCSTF O AS1001 8C-KC4-901-010 IB,YUC(ESF)F X927M O AS1002...
  • Page 5 http://www.xiaoyu163.com DISASSEMBLY INSTRUCTION - 1/2 3 7 6 3 1 5 1 5 0 DISASSMBLY PROCEDURE Notes 1) Remove top and bottom cover. 2) Remove CD mechanism. 3) Remove FFC. 4) Remove wire solder. 5) Remove the screw of MAIN BOARD. 6) Remove the connector of the motor.
  • Page 6 http://www.xiaoyu163.com DISASSEMBLY INSTRUCTION - 1/2 3 7 6 3 1 5 1 5 0 9) Remove MOTOR assy. Reassemble MOTOR assy at the position that is arranged with hole of GEAR CAM and hole of FRAME SUB assy like the figure) 10) Remove FRONT assy.
  • Page 7 Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL CDC-X927M YUCSTF 0201 87-010-552-040 CAP,E 22-16 M 5L SRE 0202 87-012-286-080 C-CAP,U 0.01-25 K B GRM 0203 87-A10-189-040 CAP,E 220-10 M 5L 0221 87-012-286-080 C-CAP,U 0.01-25 K B GRM...
  • Page 8 Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL CDC-X927M YUCSTF 0214 88-108-000-080 C-JUMPER,U 0215 88-108-154-080 C-RES,U 150K-1/16W J 0221 88-108-102-080 C-RES,U 1K-1/16W J...
  • Page 9 Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL CDC-X927M YUCSTF FRONT 0605 88-108-333-080 C-RES,U 33K-1/16W J FRONT...
  • Page 10 Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL CDC-X927M YUCSTF MAIN 0110 87-012-281-080 C-CAP,U 3900P-50 K B GRM MAIN 0111 87-012-286-080 C-CAP,U 0.01-25 K B GRM...
  • Page 11 Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL CDC-X927M YUCSTF MAIN 0701 87-010-495-040 CAP,E 2.2-50 M 5L SRE MAIN 0702 87-010-495-040 CAP,E 2.2-50 M 5L SRE...
  • Page 12 Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL CDC-X927M YUCSTF MAIN S IC 0721 87-A20-712-040 C-IC,BA6417F MAIN...
  • Page 13 Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL CDC-X927M YUCSTF MAIN 0419 88-118-270-080 C-RES,S 27-1/10W J MAIN...
  • Page 14 Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL CDC-X927M YUCSTF MAIN 0759 88-108-102-080 C-RES,U 1K-1/16W J MAIN...
  • Page 15 Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL CDC-X927M YUCSTF MAIN 0982 88-108-473-080 C-RES,U 47K-1/16W J MAIN...
  • Page 16 http://www.xiaoyu163.com ELECTRICAL PARTS LIST - 10/10 3 7 63 1515 0 • Regarding connectors, they are not stocked as they are not the initial order items. The connectors are available after they are supplied from connector manufacturers upon the order is received. CHIP RESISTOR PART CODE Chip Resistor Part Coding Figure...
  • Page 17 http://www.xiaoyu163.com TRANSISTOR ILLUSTRATION -1/1 3 7 63 1515 0 B C E E C B 2SB1326 2SB1375 2SA1037 2SD1858 2SD2012 2SA1576 2SC2412 2SC4081 DTA114YUA DTB123YK DTC114TKA DTC114TUA DTC114YUA L 13942296513 u163 -17- http://www.xiaoyu163.com...
  • Page 18 http://www.xiaoyu163.com BLOCK DIAGRAM - 1/1 (OVERALL) 3 7 6 3 1 5 1 5 0 MAIN C.B TU101 J401 FAE347-A30 IC401 REAR Q101 IC501 CON801 CD C.B 1 3 9 4 2 2 9 6 5 1 3 IC901 J751 SENSOR C.B CON701 CON702...
  • Page 19 http://www.xiaoyu163.com SCHEMATIC DIAGRAM - 1/3 (MAIN/SENSOR/LED SECTION) 3 7 6 3 1 5 1 5 0 MAIN C.B (ANTENNA) LO/DX SW AM/FM OSC BU4066BCF C439 10/16 IF REQ/OUT 2SD1858TV2 SENSOR C.B FFC671 1 3 9 4 2 2 9 6 5 1 3 CDS IN U-COM LM SW...
  • Page 20 http://www.xiaoyu163.com WIRING - 1/3 (MAIN C.B/SENSOR C.B/LED C.B ) 3 7 6 3 1 5 1 5 0 MAIN C.B J401 F801 REAR TO SPEAKER/POWER SUPPLY ANT101 (ANTENNA) C508 CON801 C521 C801 TO CD CHANGER J401 C531 R531 C505 C520 IC501 C525 C457...
  • Page 21 http://www.xiaoyu163.com SCHEMATIC DIAGRAM - 2/3 (FRONT/KEY/JACK SECTION) 3 7 6 3 1 5 1 5 0 FRONT C.B 3.36 3.36 2SC2412KR 3.36 3.36 3.36 3.36 3.36 3.36 2SC2412KR 3.36 3.36 JACK C.B 3.36 3.33 AUX IN 3.36 3.32 REMOTE SENSOR 3.36 FFC601 3.33...
  • Page 22 http://www.xiaoyu163.com WIRING - 2/3 (FRONT C.B/KEY C.B/JACK C.B) 3 7 6 3 1 5 1 5 0 JACK C.B KEY C.B SW617 SW616 SW618 SW615 SW614 SW613 SW612 SW611 SW610 SW607 SW608 SW606 SW609 (Top View) (Top View) DISP BAND /A.ME /RNDM /REP1...
  • Page 23 http://www.xiaoyu163.com SCHEMATIC DIAGRAM - 3/3 (CD SECTION) 3 7 6 3 1 5 1 5 0 CD C.B SW C.B 1 3 9 4 2 2 9 6 5 1 3 16.9344MHz TC94A09F-301 w w w u 1 6 3 -23- http://www.xiaoyu163.com...
  • Page 24 http://www.xiaoyu163.com WIRING - 3/3 (CD C.B/SW C.B) 3 7 6 3 1 5 1 5 0 (RST SW) CD C.B CD C.B (Top View) (Bottom View) SW C.B Q201 1 3 9 4 2 2 9 6 5 1 3 R205 R206 C201...
  • Page 25 http://www.xiaoyu163.com VOLTAGE CHART -1/9 3 7 63 1515 0 IC201 LA6557H PIN NO. PIN NAME TUNER CD-CHANGER VCC2 8.13 0.62 0.64 0.65 VO5- 0.26 VO5+ 0.26 VO4+ 3.72 VO4- 3.72 VO3+ 3.67 VO3- 3.84 VO2+ 4.05 VO2- 3.45 VO1+ 3.64 VO1- 4.13 VCC1...
  • Page 26 http://www.xiaoyu163.com VOLTAGE CHART -2/9 3 7 63 1515 0 IC241 TC94A09F PIN NO. PIN NAME TUNER CD-CHANGER S1 (OT5) S2 (OT6) S3 (OT7) S4 (OT8) S5 (OT9) S6 (OT10) S7 (OT11) S8 (OT12) S9 (OT13) S10(OT14/ZDET) S11(OT15/CLCK) S12(OT16/DATA) S13(OT17/SFSY) S14(DT18/LRCK) 0.28 P8-0(S15/BCK) P8-1(S16/AOUT)
  • Page 27 http://www.xiaoyu163.com VOLTAGE CHART -3/9 3 7 63 1515 0 IC241 TC94A09F PIN NO. PIN NAME TUNER CD-CHANGER 2.14 TEZI 2.12 2.12 2.15 VREF 2.13 RFGC 0.99 TEBC 1.93 2.08 2.16 2VREF 4.23 2.56 VDD2 5.07 VSS2 XVSS 2.34 2.65 XVDD 5.09 DVSR 2.57...
  • Page 28 http://www.xiaoyu163.com VOLTAGE CHART -4/9 3 7 63 1515 0 IC401 LA2657M PIN NO. PIN NAME TUNER CD-CHANGER AUX(L) 4.11 4.13 4.12 CDC(L) 4.12 4.13 4.12 TUN(L) 4.12 4.13 4.12 SD(L) 4.12 4.13 4.12 VREF 4.14 4.15 4.13 4.12 CD(R) 4.13 4.13 4.12 TUNE(R)
  • Page 29 http://www.xiaoyu163.com VOLTAGE CHART -5/9 3 7 63 1515 0 IC402 BU4066BC PIN NO. PIN NAME TUNER CD-CHANGER I/O 1 4.48 4.44 4.47 O/I 1 4.48 4.41 4.44 4.47 O/I 2 4.48 4.41 4.45 4.47 I/O 2 4.48 4.41 4.45 4.47 8.63/0 8.64/0 8.7/0...
  • Page 30 http://www.xiaoyu163.com VOLTAGE CHART -6/9 3 7 63 1515 0 IC901 UPD178078GF-550-3BA PIN NO. PIN NAME TUNER CD-CHANGER BATT IN 4.12 4.11 NC (DFP IN) 5.05 5.09 5.09 5.06 LCD DI 5.07 5.07 LCD DO DATA DATA DATA DATA LCD CLO DATA DATA DATA...
  • Page 31 http://www.xiaoyu163.com VOLTAGE CHART -7/9 3 7 63 1515 0 IC901 UPD178078GF-550-3BA PIN NO. PIN NAME TUNER CD-CHANGER RDS MODE POWER MUTE 4.05 4.06 4.06 4.03 (NC) (CONT2) (NC) (CONT1) MUTE 0.69 0.69 0.14 (NC) (RXDO) (NC) (TXDO) MI-1 MI-2 MI-3 MO-1 MO-2 MO-3...
  • Page 32 http://www.xiaoyu163.com VOLTAGE CHART -8/9 3 7 63 1515 0 TRANSISTOR CD-CHANGER 0.02 Q101 7.55 7.54 0.28 7.49 7.54 DTC114TUA 8.89 8.37 8.84 8.88 Q102 0.35 0.21 9.01 0.15 0.24 2SA1576A(R) 9.12 9.08 9.08 9.07 9.08 8.94 0.78 8.89 8.89 Q103 9.13 9.08 9.09...
  • Page 33 http://www.xiaoyu163.com VOLTAGE CHART -9/9 3 7 63 1515 0 TRANSISTOR CD-CHANGER 9.77 9.78 9.78 9.77 Q813 14.25 14.35 14.4 14.31 14.16 2SD2012 9.15 9.11 9.11 9.11 6.37 6.36 6.36 6.36 6.36 Q821 12.59 12.57 12.64 12.52 12.44 2SD1858 5.79 5.78 5.79 5.79 9.05...
  • Page 34 http://www.xiaoyu163.com IC BLOCK DIAGRAM -1/3 3 7 63 1515 0 IC, BU4066BCF IC, LA4743J MUTE ON TIME L 13942296513 IC, BA6417F STBY PRE GND u163 -34- http://www.xiaoyu163.com...
  • Page 35 http://www.xiaoyu163.com IC BLOCK DIAGRAM -2/3 3 7 63 1515 0 IC, LA6557H Thermal shutdown CH3,4,5 VCC2 POWER Input VO5— VO5+ S-GND MUTE is as follows : High : Output ON VO4+ Low : Output OFF MUTE MUTE VO4— VIN4 VO3+ VING4 Signal System Power VO3—...
  • Page 36 http://www.xiaoyu163.com IC BLOCK DIAGRAM -3/3 3 7 63 1515 0 IC, LA2657H LSELO LBASS1 L FAD IN FLOUT LIN LTRE LBASS2 LOUT RLOUT AUX(L) FADER TONE INTERFACE S-BASS CH(L) TUNE(L) RROUT FADER CD(L) FROUT Vref VREF BBE IN(L) CD(R) CBPL TUNE(R) CH(R) HPOL...
  • Page 37 http://www.xiaoyu163.com IC DESCRIPTION -1/3 (µPD178076GF-560-3BA)-1/3 3 7 63 1515 0 Pin Name Pin No. Description BATT IN BATT ON/OFF input DFP IN Detects whether DFP (front panel) is provided or not. LCD DI LCD DRV data input LCD DO Open when not used. LCD DRV data output. LCD CLO LCD DRV clock output.
  • Page 38 http://www.xiaoyu163.com IC DESCRIPTION -1/3 (µPD178076GF-560-3BA)-2/3 3 7 63 1515 0 Pin Name Description Pin No. IF REQ Output to request IF count signal. Ground AM IF AM IF count signal input FM IF FM IF count signal input Power supply for PLL FM OSC FM local oscillation input AM OSC...
  • Page 39 http://www.xiaoyu163.com IC DESCRIPTION -1/3 (µPD178076GF-560-3BA)-3/3 3 7 63 1515 0 Pin Name Description Pin No. AUX IN AUX JACK SW detect input. CDS SREQ CDS SREQ output. RE1 IN Rotary encoder input 1 RE2 IN Rotary encoder input 2 Ground LM SW FEED MOTER GAIN SW output PANCON1...
  • Page 40 http://www.xiaoyu163.com IC DESCRIPTION -2/3 (LC75817W-8720)-1/3 3 7 63 1515 0 Pin Name Pin No. Description Segment driver output pin. Segment driver output pin. Segment driver output pin. Segment driver output pin. Segment driver output pin. Segment driver output pin. Segment driver output pin. Segment driver output pin.
  • Page 41 http://www.xiaoyu163.com IC DESCRIPTION -2/3 (LC75817W-8720)-2/3 3 7 63 1515 0 Pin Name Pin No. Description Segment driver output pin. Segment driver output pin. Segment driver output pin. Segment driver output pin. Segment driver output pin. Segment driver output pin. Segment driver output pin. Segment driver output pin.
  • Page 42 http://www.xiaoyu163.com IC DESCRIPTION -2/3 (LC75817W-8720)-3/3 3 7 63 1515 0 Pin Name Pin No. Description Key scan input pin. Change illmination(BLUE) Change illmination(RED) Dimmer control pin. LOAD/EJECT GAIN Switching Output.. VLCD LCD driver power supply pin. VLCD0 LCD driver bias 4/4 voltage (H-level) power pin. VKCD1 LCD driver bias 3/4 voltage (Intermediate level) power pin.
  • Page 43 http://www.xiaoyu163.com IC DESCRIPTION -3/3 (TC94A09F-301)-1/3 3 7 63 1515 0 Pin Name Pin No. Description NC (Open) NC (Open) NC (Open) NC (Open) NC (Open) NC (Open) NC (Open) NC (Open) NC (Open) NC (Open) NC (Open) NC (Open) NC (Open) NC (Open) P8-0 NC (Open)
  • Page 44 http://www.xiaoyu163.com IC DESCRIPTION -3/3 (TC94A09F-301)-2/3 3 7 63 1515 0 Pin Name Pin No. Description OT20 NC(open) OT21 NC(open) OT22 NC(open) DOUT NC(open) SBSY NC(open) SBOK NC(open) VDDÇP Vss 1 P2VREF FOR PLL 2 VREF EFM to PLCK difference error signal output TMAX TMAX DETECT output LPFN...
  • Page 45 http://www.xiaoyu163.com IC DESCRIPTION -3/3 (TC94A09F-301)-3/3 3 7 63 1515 0 Pin Name Pin No. Description XTAL OUTPUT XVDD For XTAL VDD DVSR Rch D/A CONVERTER GND Rch DATA OUTUT DVRR Rch Reference VDD DVDD D/A CONVERTER VDD DVRL Lch Reference VDD Lch DATA OUTUT DVSL Lch D/A CONVERTER GND...
  • Page 46 http://www.xiaoyu163.com LCD DISPLAY - 1/1 (CKC-4) 3 7 6 3 1 5 1 5 0 SEGMENT 1 3 9 4 2 2 9 6 5 1 3 COMMON w w w u 1 6 3 -46- http://www.xiaoyu163.com...
  • Page 47 http://www.xiaoyu163.com MECHANICAL EXPLODED VIEW -1/1 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 -47- http://www.xiaoyu163.com...
  • Page 48 Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL CDC-X927M YUCSTF O MC1001 8C-KC6-011-010 CAP, RTRY VOL O MC1002...
  • Page 49 Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL CDC-X927M YUCSTF O MC1065 8C-KC4-612-010 F-CABLE,2P 40MM GRN/GRY O MC1066 8C-KCG-661-010 FF-CABLE,20P 1.0 90MM...
  • Page 50 http://www.xiaoyu163.com COLOR NAME TABLE -1/1 3 7 63 1515 0 Basic color symbol Color Basic color symbol Color Basic color symbol Color Black Cream Orange Green Gray Blue Transparent Blue Gold Pink Silver Titan Silver Brown Violet White Transparent White Yellow Transparent Yellow Metallic Blue...
  • Page 51 http://www.xiaoyu163.com CD MECHANISM EXPLODED VIEW -1/1 (BZG-3CNF) 3 7 63 1515 0 L 13942296513 u163 CZA-5 -51- http://www.xiaoyu163.com...
  • Page 52 http://www.xiaoyu163.com CD MECHANISM PARTS LIST -1/2 (BZG-3CNF) = ! SAFTY PARTS = Components marked All components used on this model at the production line are shown in this service manual. 3 7 63 1515 0 However, please note that not all components will be available as spare parts for after-sales service. Components marked S and O are designated as spare parts for service and will be stocked at the spare parts centers.
  • Page 53 http://www.xiaoyu163.com CD MECHANISM PARTS LIST -2/2 (BZG-3CNF) = ! SAFTY PARTS = Components marked All components used on this model at the production line are shown in this service manual. 3 7 63 1515 0 However, please note that not all components will be available as spare parts for after-sales service. Components marked S and O are designated as spare parts for service and will be stocked at the spare parts centers.
  • Page 54 Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL CDC-X927M YUCSTF 8A-ZL2-252-010 SH, 6-8-1.6 W/ADH 87-B40-087-010 BAG,PV 0.04-250-350 PL 8C-KC4-851-010 CUSHION,LEFT AIS...
  • Page 55 http://www.xiaoyu163.com OTHER PARTS LIST -2/2 (CD MECHANISM BZG-3CNF) = ! SAFTY PARTS = Components marked All components used on this model at the production line are shown in this service manual. 3 7 63 1515 0 However, please note that not all components will be available as spare parts for after-sales service. Components marked S and O are designated as spare parts for service and will be stocked at the spare parts centers.
  • Page 56 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110-8710, JAPAN TEL:03 (3827) 3111 H251941 http://www.xiaoyu163.com...