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Sony XR-C5090 Service Manual

E model fm/am cassette car stereo
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SERVICE MANUAL
Refer to RM-X4S SERVICE MANUAL (9-925-698-∏) issued
previously for information of remote commander (RM-X4S)
supplied with this set
MICROFILM
XR-C5090
Model Name Using Similar Mechanism
Tape Transport Mechanism Type
SPECIFICATIONS
FM/AM CASSETTE CAR STEREO
E Model
XR-C340
MG-25F-136

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Summary of Contents for Sony XR-C5090

  • Page 1 XR-C5090 SERVICE MANUAL E Model Refer to RM-X4S SERVICE MANUAL (9-925-698-∏) issued previously for information of remote commander (RM-X4S) supplied with this set Model Name Using Similar Mechanism XR-C340 Tape Transport Mechanism Type MG-25F-136 SPECIFICATIONS FM/AM CASSETTE CAR STEREO MICROFILM...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS GENERAL Flexible Circuit Board Repairing Location of Controls ............3 • Keep the temperature of the soldering iron around 270 ˚C dur- Setting the Unit ............... 4 ing repairing. Detaching the Front Panel ..........4 • Do not touch the soldering iron on the same conductor of the Preparing the Rotary Commander ........
  • Page 3 SECTION 1 This section is extracted from instruction manual. GENERAL – 3 –...
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  • Page 9: Disassembly

    SECTION 2 DISASSEMBLY Note: Follow the disassembly procedure in the numerical order given. FRONT PANEL ASS’Y, COLLAR 4 collar 3 claw 1 Push the button (release). 3 claw 2 Remove the front panel ass’y to the direction of the arrow A . COVER ASS’Y 3 cover ass’y –...
  • Page 10 5 screw SUB PANEL, MECHANISM DECK (MG-25F-136) (PTT2.6 × 6) 3 connector (CN351) 6 mechanism deck (MG-25F-136) 4 flexible flat cable (CN301) 2 sub panel 1 three screws (PTT2.6 × 8) 1 three screws (PTT2.6 × 8) 5 three screws (PTT2.6 ×...

  • Page 11: Assembly Of Mechanism Deck

    SECTION 3 ASSEMBLY OF MECHANISM DECK Note: Follow the assembly procedure in the numerical order given. HOUSING 7 Holder the hanger by bending the claw. 5 Fit projection on C part. 1 Install the catch to the hanger. 2 Install the hanger onto two claws of the housing.
  • Page 12 LEVER (LDG-A) / (LDG-B) shaft A shaft A shaft B shaft C shaft B 1 Fit the lever (LDG-A) on shafts A – C and install it. 3 type-E stop ring 2.0 2 Fit the lever (LDG-B) on shafts A and B and install it.
  • Page 13 GUIDE (C) 2 guide (C) 1 three claws – 13 –...

  • Page 14: Mechanical Adjustments

    SECTION 4 SECTION 5 MECHANICAL ADJUSTMENTS ELECTRICAL ADJUSTMENTS 1. Clean the following parts with a denatured-alcohol-moistened TAPE DECK SECTION 0 dB=0.775 V swab: playback head pinch roller Tape Speed Adjustment rubber belt capstan Setting: idler speed checker 2. Demagnetize the playback head with a head demagnetizer. 3.

  • Page 15: Diagrams

    SECTION 6 DIAGRAMS 6-1. IC PIN FUNCTION DESCRIPTION • MAIN BOARD IC501 µPD17708GC-567-3B9 (SYSTEM CONTROLLER) Pin No. Pin Name Function AMSSEL Setting terminal for the AMS selection fixed at “L” POS3 POS2 Tape position detect input from tape operation switch on the mechanism block POS0 POS1 TAPEON...
  • Page 16 Blank indicate control signal output to the liquid crystal display driver (IC901) LCDINH “L”: no display UNICKI Serial data reading clock signal input terminal (for SONY bus) UNISO Serial data output to the bus interface (IC581) (for SONY bus) – 16 –...
  • Page 17 Serial data transfer clock signal output to the bus interface (IC581) (for SONY bus) BUSON Bus on/off control signal output to the bus interface (IC581) (for SONY bus) “L”: bus on SYSRST Reset signal output to the bus interface (IC581) (for SONY bus) “L”: reset...

  • Page 18: Printed Wiring Boards - Main Section

    6-2. PRINTED WIRING BOARD – MAIN Section – – 19 – – 20 –...
  • Page 19 • Waveform 1 IC501 &¶ (X_IN) 3.4 Vp-p 221 ns – 24 –...
  • Page 20 • IC Block Diagrams – MAIN Board – IC301 CXA2509AQ-T4 24dB 120µ/70µ + – MSMODE – NR BIAS DRSW PBFB1 MODE PBRIN1 TAPE/AUX TAPESW PBREF1 INSW TAPE EQ PBFIN1 FWD/RVS PBGND MS ON/ DETECT – PBFIN2 MSOUT PBREF2 DGND PBRIN2 PBFB2 MSTC G1FB...
  • Page 21 IC351 LB1638M IC581 BA8270F-E2 N.C. BUS ON BUS ON SWITCH RESET OUT1 SWITCH BUS ON CLK IN BATTERY BATT BU IN SWITCH OUT2 VREF N.C. DATA DATA IN DATA OUT IC611 BA3918-V2 REGULATOR OVER VOLTAGE PROTECT – 2 3 4 –...

  • Page 22: Exploded Views

    SECTION 7 EXPLODED VIEWS NOTE: • -XX and -X mean standardized parts, so they • Items marked “*” are not stocked since they may have some difference from the original are seldom required for routine service. Some one. delay should be anticipated when ordering •...
  • Page 23 (2) FRONT PANEL SECTION not supplied (KEY board) LCD901 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-018-930-01 KNOB (D-BASS) 3-010-387-01 BUTTON (PRESET) (6. 1. 2. 3. 4. 5. 6. DSPL) * 52 3-014-859-01 SHEET (LCD) (T) 3-010-391-01 BUTTON (L.D) (LCL.
  • Page 24 (3) MECHANISM DECK SECTION (MG-25F-136) HP901 M901 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-933-346-01 CATCHER A-3291-667-A CLUTCH (FR) ASSY 3-933-344-01 GUIDE (C) * 152 3-019-130-01 LEVER (LDG-A) 3-014-798-01 SCREW (HEAD), SPECIAL * 153 3-019-131-01 LEVER (LDG-B) 3-364-151-01 WASHER 3-020-539-01 SPRING (LD-1), TENSION A-3301-267-A CHASSIS ASSY (G)

  • Page 25: Electrical Parts List

    SECTION 8 ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • Items marked “*” are not stocked since they When indicating parts by reference parts list may be different from the parts speci- are seldom required for routine service. number, please include the board.
  • Page 26 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R955 1-216-049-11 RES,CHIP 1/10W C121 1-164-004-11 CERAMIC CHIP 0.1uF C122 1-163-037-11 CERAMIC CHIP 0.022uF R956 1-216-049-11 RES,CHIP 1/10W C123 1-164-004-11 CERAMIC CHIP 0.1uF R961 1-216-027-00 METAL CHIP 1/10W R962 1-216-025-00 RES,CHIP...
  • Page 27 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C303 1-163-251-11 CERAMIC CHIP 100PF < CONNECTOR > C304 1-164-004-11 CERAMIC CHIP 0.1uF C305 1-107-823-11 CERAMIC CHIP 0.47uF CN301 1-766-260-11 CONNECTOR, FFC/FPC (ZIF) 7P C306 1-164-232-11 CERAMIC CHIP 0.01uF * CN351 1-506-995-11 PIN, CONNECTOR (PC BOARD) 13P...
  • Page 28 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < IC > < COIL > IC301 8-752-079-78 IC CXA2509AQ-T4 L501 1-410-509-11 INDUCTOR 10uH IC331 8-759-443-67 IC LC75373ED L781 1-411-669-12 INDUCTOR IC351 8-759-823-87 IC LB1638M L901 1-410-509-11 INDUCTOR 10uH IC501 8-759-493-98 IC uPD17708GC-567-3B9...
  • Page 29 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R172 1-216-073-00 METAL CHIP 1/10W R519 1-216-097-00 RES,CHIP 100K 1/10W R174 1-216-129-00 METAL CHIP 2.2M 1/10W R522 1-216-097-00 RES,CHIP 100K 1/10W R175 1-216-089-00 RES,CHIP 1/10W R181 1-216-033-00 METAL CHIP 1/10W R523 1-216-097-00 RES,CHIP...
  • Page 30 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < SWITCH > PARTS FOR INSTALLATION AND CONNECTIONS ************************************** S501 1-571-478-11 SWITCH, SLIDE (POWER SELECT) S502 1-571-478-11 SWITCH, SLIDE (FREQUENCY SELECT) 3-916-161-31 FRAME ASSY S551 1-692-431-21 SWITCH, TACTILE (RESET) X-3370-077-1 SCREW ASSY (AE.KEY), FITTING X-3371-913-1 SCREW ASSY (J) <...
  • Page 31 XR-C5090 Sony Corporation 98B0523-1 9-925-789-11 Personal & Mobile Communication Company Printed in Japan © 1998. 2 – 40 – Published by Quality Assurance Dept.

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