Aiwa CSD-MD50 Service Manual

BASIC TAPE MECHANISM : 2ZM-1R7BASIC MD MECHANISM : 7ZG-9B2BASIC CD MECHANISM : 3ZG-3E2MD/CD STEREORADIO CASSETTE RECORDERCSD-MD50S/M Code No. 09-994-3

10MD MECHANISMFFCFFCHLDR, SHLD BOTAABBBHLDR, SHLD TOPHEAD, OWH RF325-74APLATE ASSY, SIDE LPLATE, SIDE RCCD10. Remove the four screws A (S-SCREW, MD) a

11REF. NO PART NO. KANRI DESCRIPTIONNO.REF. NO PART NO. KANRI DESCRIPTIONNO.ELECTRICAL MAIN PARTS LISTIC 87-020-454-010 IC,DM6851

12 C430 87-010-405-080 CAP, ELECT 10-50V C431 87-010-184-080 CHIP CAPACITOR 3300P(K) C432 87-010-184-080 CHIP CAPACITOR 3300P(K)

13REF. NO PART NO. KANRI DESCRIPTIONNO.REF. NO PART NO. KANRI DESCRIPTIONNO. C315 87-010-248-080 CAP, ELECT 220-10V C316 87-010-178-080

14REF. NO PART NO. KANRI DESCRIPTIONNO.REF. NO PART NO. KANRI DESCRIPTIONNO. C339 87-012-156-080 C-CAP,S 220P-50 CH C340 87-012-156-080

1615REF. NO PART NO. KANRI DESCRIPTIONNO.REF. NO PART NO. KANRI DESCRIPTIONNO. C523 87-010-662-080 C-CAP,E 22-6.3 C524 87-010-662-080 C-

1817FL (16-ST-32GNK) GRID ASSIGNMENT/ANODE CONNECTION

2019BLOCK DIAGRAM-1 (MAIN)

2221BLOCK DIAGRAM-2 (SYSTEM CONTROL)

2423BLOCK DIAGRAM-3 (MD)

2TABLE OF CONTENTSSPECIFICATIONS ...

1234567891011 12 1314ABCDEFGHIJK2625WIRING-1 (MAIN)

2827SCHEMATIC DIAGRAM-1 (TUNER)

3029SCHEMATIC DIAGRAM-2 (DECK)

3231SCHEMATIC DIAGRAM-3 (MAIN)

1234567891011 12 1314ABCDEFGHIJK3433WIRING-2 (SYSTEM CONTROL/CD)

3635SCHEMATIC DIAGRAM-4 (SYSTEM CONTROL)

1234567891011 12 1314ABCDEFGHIJK3837WIRING-3 (FL/KEY)

4039SCHEMATIC DIAGRAM-5 (CD)

1234567891011 12 1314ABCDEFGHIJK4241WIRING-4 (POWER)

4443SCHEMATIC DIAGRAM-6 (FL/KEY/POWER)

3SPECIFICATIONSREF. NO PART NO. KANRI DESCRIPTIONNO.ACCESSORIES/PACKAGE LIST 1 8Z-CK4-952-010 RC UNIT,RC-ZAT04 2 8Z-CK3-906-010 IB

4645WIRING-5 (MD)76543211234567ABCDEFGHIJABCDEFGHIJTO/FROM MAIN C.BCN203TO/FROM MICOM/CD C.BCN304(CONDUCTOR SIDE)(COMPONENT SIDE)

4847SCHEMATIC DIAGRAM-7 (MD)

1234567891011 12 1314ABCDEFGHIJK5049WIRING-6 (MECHANISM)TO MICOM/CD C.BCN500

511. CD TEST Mode1-1. How to Active the CD TEST ModeWhile pressing the CD 2 button, connect the AC power plug to the power outlet.After the TEST mode

522-2. How to Exit the MD TEST Mode1) Eject the disc by pressing the “MD EJECT” button or the “VOLUME UP” button.2) Disconnect the AC power plug from

532-8. Checking Servo Operation• Checking the focus search and spindle kick: 11) When the MD 2 button is pressed while the machine is in the “ALL SV O

543-3. AUTO SEQUENCE Adjustment (EFB/IVR/FOCUS AGC/TRACKING AGC adjustment)Test disc: MDW-60. TGYS-1When adjusting MO disc1) Insert the test disc MDW-

5510) Press the MD 2 button to display “FOCUS ON!”.11) Press the “ENTER” to display “ALL SV ON”, and press the “DISP” button to display “Er00**:0000”.

56ELECTRICAL ADJUSTMENT6237MAIN C.B(CONDUCTOR SIDE)TP4FFE801L981VR770TP5TP6IC771L772L771CN2018MICOM/CD C.B (CONDUCTOR SIDE)CN302TP2TP3IC501SFR501IC500

57< TUNER SECTION >1. AM VT CheckSettings: • Test point: TP4 (VT)Method: Set to AM 1611kHz and check that the testpoint is less than 5.6V.2. AM

4PROTECTION OF EYES FROM LASER BEAM DURING SERVICINGVAROITUS!Laiteen Käyttäminen muulla kuin tässä käyttöohjeessa mainit-ulla tavalla saattaa altistaa

58< CD SECTION >8. Tracking Balance AdjustmentOscilloscope(DC range)+–TP2 (TB)TP3 (VREF)1) Connect an oscilloscope to the test points TP2 (TB) a

591 MNT0 O Monitor output pin.2 MNT1 O Monitor output pin.3 MNT2 O Monitor output pin.4 MNT3 O Monitor output pin.5 SWDT I Data input pin for micro-pr

6040 DVSS – Digital GND.41 XOE O Output enable pin for external DRAM.42 XCAS O Output CAS for external DRAM.43 A09 O Output address for external DRAM.

61Pin No. Pin Name I/O Description80 XLRF O Latch output pin for CXA2523AR control. Shut down: Latch.81 CKRF O Shift clock output pin for CXA2523AR co

62Pin No. Pin Name I/O Description1 MCAS – Not used.2 MRAS – Not used.3 BUP – Not used.4 AMUTE O Output AUDIO MUTE signal.5 ESK O Serial clock output

63Pin No. Pin Name I/O Description53 ~ 55 NC – Not used (PLL UP).56 SLF – Not used (PLL UP).57 SLR – Not used (PLL UP).58 TEMP I S-8110AMP OUT signal

641 I I Input "I" RF signal converted to I-V.2 J I Input "J" RF signal converted to I-V.3 VC O Output voltage for VCC/2.4 A I Inpu

6542 COMPP I User comparator non-inverted input pin. (Connected to GND)43 ADDC I/O Capacitor connection pin for ADIP amplifier on return circuit.44 OP

66123456789101112131415161718192021222324252627282930, 3132, 333435FIN2FIN1EFTBTE–TETESISCITHTATD–TDJPTOFDFD–FAFA–FEFE–AGNDNCSPSPGSP–SPDSLEQSLDSL–, SL

6736373839, 40414243444546474849505152535455565758596061626364TESHFLSLOFCV–, CV+RFSMRFS–SLCSLIDGNDFSCTBCNCDEFCLKCLDATCEDRFFSSVCC2REFIVRLF2PH1BH1LDDLDS

51 VEE¡ TRK –Precaution to replace Optical block(KSS-213F)1) After the connection, remove solder shown inthe right figure.Body or clothes electrostati

68123456789101112, 13141516171819, 2021222324-2829303132, 33343536373839404142DEFITAIPDOVVSSISETVVDDFRVSSEFMOEFMINTEST2CLV+, CLV–___V/PHFLTESTOFFTGLJP

6943444546474849505152535455565758596061626364XVDDXOUTXINXVSSSBSYEFLGPWSFSYSBCKFSXWRQRWCSQOUTCOIN___________CQCK________RESTST1116M4.2MTEST5______CSTE

70MOTOR—LACLDAQ-SWSHIFTACINREMORESXT1XT2GNDCF1CF2+B—AD-1AD-2DOORTUSW1TUSW2JOG-1JOG-2NCSRSTARDYSREQMREQSINSOUTALCKFLDIFLCEFLCKNCNCDIDO12345678910111213

71Pin No. Pin Name I/O Description4041424344454647484950515253545556575859606162636465666768697071727374757677787980SKCSNCPOWER+BGND—CD+BTU+BCDMDTUNER

72IC BLOCK DIAGRAMIC, BA5970FPIC, BA6417F

73IC, BD7910FVIC, BH3862FS

74IC, AK4519VFIC, AK93C65AF

75Rog CURRENT DETECTOR TERMINAL IC, BA5936IC, LC75710NE

76VSSXVSSDVDDVSSAIC, TC74HCT7007AFIC, LC72121

77IC, MM1454XFBE16 15 14 13 12 11 10 91 2 3 4 5 6 7 8+–+–+–BIASVCCRIN PNR B/Q DET QF6 ROUT LOUT GNDLIN VREF QF1 QF2 QF3 QF4 QF5QSurroundIC, LA1837NL

6DISASSEMBLY INSTRUCTIONSABC Disassembling Procedure1. Remove the seven screws (A BVT2+3-18*7) and remove the rear cabinet.2. Remove the two screws (B

78REF. NO PART NO. KANRI DESCRIPTIONNO.REF. NO PART NO. KANRI DESCRIPTIONNO.MECHANICAL PARTS LIST 1/1Basic color symbol Color Basic color symbol Color

8079MECHANICAL EXPLODED VIEW 1/1cabcabFCHFFCCCCDIIICECHBCACCCP.C.BP.C.BP.C.B F1234567891011121314151716181921202223242526272829303132333435363740P.C

8281TAPE MECHANISM EXPLODED VIEW 1/11AA56161514301312111017194620522212325262929272832RELAY C.BHLDR WIRE 3BBA1897ABAB313839403234333543454141374452515

83REF. NO PART NO. KANRI DESCRIPTIONNO.REF. NO PART NO. KANRI DESCRIPTIONNO.TAPE MECHANISM PARTS LIST 1/1 1 82-ZM1-327-210 CHAS ASSY,RN

84CD MECHANISM EXPLODED VIEW 1/2BCABC3MOTOR-2 C.B24567891011121173ZG217CUSH-G,MAIN ABDDACUSH-G,MAIN AA16141513CC

85REF. NO PART NO. KANRI DESCRIPTIONNO.REF. NO PART NO. KANRI DESCRIPTIONNO.CD MECHANISM PARTS LIST 1/2 1 83-ZG3-224-310 HLDR,M2 2 83

86CD MECHANISM EXPLODED VIEW 2/2CD MECHANISM PARTS LIST 2/2REF. NO PART NO. KANRI DESCRIPTIONNO. 1 83-ZG2-243-110 CHAS ASSY,SHT 2 83-

87MD MECHANISM EXPLODED VIEW 1/3MD MECHANISM PARTS LIST 1/3REF. NO PART NO. KANRI DESCRIPTIONNO. 1 87-ZG9-602-010 FF-CABLE,21P 0.5 90MM

88MD MECHANISM EXPLODED VIEW 2/3A17ZG-3 A2234PCB5678a9BC101112131415161718192021aDE

89REF. NO PART NO. KANRI DESCRIPTIONNO.REF. NO PART NO. KANRI DESCRIPTIONNO.MD MECHANISM PARTS LIST 2/3 1 87-ZG8-220-110 PLATE ASSY,LATCH

74. Open the deck lid. Release the two claws 1 and remove the PANEL DISP by pulling it upward.5. Close the deck lid. Raise the deck block from the r

90MD MECHANISM EXPLODED VIEW 3/3E1FGBACD23456PLATE,YOKE7891012131416P.C.BHLDR LEDGEAR,LEADA15H1711

91REF. NO PART NO. KANRI DESCRIPTIONNO.REF. NO PART NO. KANRI DESCRIPTIONNO.MD MECHANISM PARTS LIST 3/3 1 87-ZG3-202-510 CHAS ASSY,OUT-SERT

92SPRING APPLICATION POSITION82-ZM1-322-010SPR-T,FR 6082-ZM1-259-110SPR-T,PINCH R86-ZM4-201-010SPR-E,TRIG 382-ZM1-255-310SPR-E,LER DIR82-ZM1-258-110SP

93ELECTRICAL SECTIONDESCRIPTION REFERENCE NAMEANT ANTENNASC- CHIPC-CAP CAP, CHIPC-CAP TN CAP, CHIP TANTALUMC-COIL COIL, CHIPC-DI DIODE, CHIPC-DIODE DI

737004Printed in Singapore2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110-8710, JAPAN TEL:03 (3827) 3111

87. How to remove the COVER, FFC.1) Remove the five screws (A BVT2+3-12*5) and remove the deck mechanism.2) Remove the SPR T CASS from the rib and rem

9221234) Raise the COVER and FFC in the direction of the arrow, and remove them.8. How to remove FL C.B.1) Release the two claws 2 and pull the top of