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Sony XR-C6120 Service Manual

Fm/am cassette car stereo
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3 7 63 1515 0
SERVICE MANUAL
Dolby noise reduction manufactured under license
from Dolby Laboratories Licensing Corporation.
"DOLBY" and the double-D symbol a are trade-
marks of Dolby Laboratories Licensing Corporation.
TE
L 13942296513
www
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MICROFILM
http://www.xiaoyu163.com
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u163
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http://www.xiaoyu163.com
XR-C6120
2 9
8
Model Name Using Similar Mechanism
Tape Transport Mechanism Type
SPECIFICATIONS
Q Q
3
6 7
1 3
1 5
FM/AM CASSETTE CAR STEREO
co
.
9 4
2 8
US Model
Canadian Model
XR-C5100
MG-25F-136
0 5
8
2 9
9 4
2 8
m
9 9
9 9

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Summary of Contents for Sony XR-C6120

  • Page 1 XR-C6120 3 7 63 1515 0 SERVICE MANUAL US Model Canadian Model Dolby noise reduction manufactured under license Model Name Using Similar Mechanism XR-C5100 from Dolby Laboratories Licensing Corporation. Tape Transport Mechanism Type MG-25F-136 “DOLBY” and the double-D symbol a are trade- marks of Dolby Laboratories Licensing Corporation.

  • Page 2: Table Of Contents

    http://www.xiaoyu163.com 3 7 63 1515 0 TABLE OF CONTENTS Flexible Circuit Board Repairing • Keep the temperature of the soldering iron around 270 ˚C dur- ing repairing. GENERAL • Do not touch the soldering iron on the same conductor of the Location of Controls ............
  • Page 3 http://www.xiaoyu163.com SECTION 1 This section is extracted from instruction manual. GENERAL 3 7 63 1515 0 L 13942296513 u163 – 3 – http://www.xiaoyu163.com...
  • Page 4 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 – 4 – http://www.xiaoyu163.com...

  • Page 5: Http://Www.xiaoyu163.Com

    http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 – 5 – http://www.xiaoyu163.com...
  • Page 6 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 – 6 – http://www.xiaoyu163.com...
  • Page 7 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 – 7 – http://www.xiaoyu163.com...
  • Page 8 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 – 8 – http://www.xiaoyu163.com...

  • Page 9: Disassembly

    http://www.xiaoyu163.com SECTION 2 DISASSEMBLY 3 7 63 1515 0 Note: Follow the disassembly procedure in the numerical order given. SUB PANEL, MECHANISM DECK (MG-25F-136) 5 screw (PTT2.6 × 6) 3 connector (CN351) 6 mechanism deck (MG-25F-136) 4 flexible flat cable (CN301) 2 sub panel 1 three screws...

  • Page 10: Assembly Of Mechanism Deck

    http://www.xiaoyu163.com SECTION 3 ASSEMBLY OF MECHANISM DECK 3 7 63 1515 0 Note: Follow the assembly procedure in the numerical order given. 7 Holder the hanger by bending the claw. HOUSING 5 Fit projection on C part. 1 Install the catch to the hanger. 2 Install the hanger onto two claws of the housing.
  • Page 11 http://www.xiaoyu163.com 3 7 63 1515 0 LEVER (LDG-A)/(LDG-B) shaft A shaft A shaft B shaft B shaft C 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 12 http://www.xiaoyu163.com 3 7 63 1515 0 GUIDE (C) 2 guide (C) 1 three claws L 13942296513 MOUNTING POSITION OF CAPSTAN/REEL MOTOR (M901) two precision screws (P2 × 2) capstan/reel motor (M901) u163 30˚ – 12 – http://www.xiaoyu163.com...

  • Page 13: Mechanical Adjustments

    http://www.xiaoyu163.com SECTION 4 SECTION 5 MECHANICAL ADJUSTMENTS ELECTRICAL ADJUSTMENTS 3 7 63 1515 0 1. Clean the following parts with a denatured-alcohol-moistened TEST MODE swab: <Set the Test Mode> playback head pinch roller 1. Set the “power select” switch (S501) is “A (ON)” position. rubber belt capstan 2.

  • Page 14: Tuner Section

    http://www.xiaoyu163.com 3 7 63 1515 0 Dolby Level Adjustment TUNER SECTION 0 dB=1 µV Setting: The tuner section has no adjustment. [SHIFT] button : ON Preset (PLAY MODE) and → ) buttons : NR OFF SOUND (BAS) button : Center SOUND (TRE) button : Center SOUND (BAL) button...
  • Page 15 http://www.xiaoyu163.com 3 7 63 1515 0 Adjustment Location: – SET UPPER VIEW – Tape Speed Adjustment RV201 RV101 (R-CH) (L-CH) L 13942296513 Dolby Level Adjustment – MAIN BOARD (Conductor Side) – TP (DOLBY-R) Dolby Level IC301 TP (GND) Adjustment TP (DOLBY-L) u163 –...

  • Page 16: Diagrams

    http://www.xiaoyu163.com SECTION 6 3 7 63 1515 0 DIAGRAMS 6-1. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS Note on Printed Wiring Board: Note on Schematic Diagram: • X : parts extracted from the component side. • All capacitors are in µF unless otherwise noted. pF: µµF •...

  • Page 17: Printed Wiring Board - Main Board

    XR-C6120 3 7 6 3 1 5 1 5 0 6-2. PRINTED WIRING BOARD – MAIN Board – • Semiconductor Location 1 3 9 4 2 2 9 6 5 1 3 Ref. No. Location Ref. No. Location D722...

  • Page 18: Schematic Diagram - Main Board (1/2)

    XR-C6120 3 7 6 3 1 5 1 5 0 6-3. SCHEMATIC DIAGRAM – MAIN Board (1/2) – • See page 29 for Waveforms. • See page 27 for IC Block Diagrams. 1 3 9 4 2 2 9 6 5 1 3...

  • Page 19: Schematic Diagram - Main Board (2/2)

    XR-C6120 3 7 6 3 1 5 1 5 0 6-4. SCHEMATIC DIAGRAM – MAIN Board (2/2) – • See page 28 for IC Block Diagrams. 1 3 9 4 2 2 9 6 5 1 3 (Page 25)

  • Page 20: Printed Wiring Board - Key Board

    XR-C6120 3 7 6 3 1 5 1 5 0 6-5. PRINTED WIRING BOARD – KEY Board – • Semiconductor Location (Component Side) Ref. No. Location D902 B-12 D903 B-12 D904 B-11 D951 IC951 B-10 Q945 1 3 9 4 2 2 9 6 5 1 3...

  • Page 21: Schematic Diagram - Key Board

    XR-C6120 3 7 6 3 1 5 1 5 0 6-6. SCHEMATIC DIAGRAM – KEY Board – • See page 29 for Waveform. (Page 22) 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 –...
  • Page 22 http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 • IC Block Diagrams IC331 TDA7462D – MAIN Board – IC21 TB2118F-EL-S SE3L SE3R MUTE PAUSE PAUSE DETECT 24 23 22 21 16 15 14 13 FRONT INPUT TREBLE/ OUT FL LOUDNESS VOLUME VOICE BANDPASS...
  • Page 23 http://www.xiaoyu163.com 3 7 63 1515 0 • Waveforms – MAIN Board – – KEY Board – 1 IC21 1 (XT OUT) 1 IC901 ^º OSC 2.7 Vp-p 0.2 Vp-p 97.6 ns 27 µ s 2 IC501 !∞ (XT IN) 1.7 Vp-p 30.5 µ...

  • Page 24: Ic Pin Function Description

    Rotary remote commander shift key input terminal “L”: shift SYSRST Reset signal output to the SONY bus interface (IC581) “L”: reset BUS-ON Bus on/off control signal output to the SONY bus interface (IC581) “L”: bus on UNISO Serial data output to the SONY bus interface (IC581) UNISI...

  • Page 25: Tel 13942296513

    http://www.xiaoyu163.com 3 7 63 1515 0 Pin No. Pin Name Function BEEP Beep sound drive signal output terminal AMP-MUT Muting on/off control signal output to the power amplifier (IC751) “L”: muting on Standby on/off control signal output to the power amplifier (IC751) AMP ON “L”: standby mode, “H”: amp on PLL-CKO...
  • Page 26 http://www.xiaoyu163.com 3 7 63 1515 0 Pin No. Pin Name Function POS3 Tape position (EJECT/FF/REW/ POS3: “L”: REV and EJECT mode, “H”: others mode POS2 REV/FWD mode) detect input from POS2: “L”: REW mode, “H”: others mode the tape operation switch on the POS0: “L”: EJECT mode, “H”: others mode POS0 deck mechanism...

  • Page 27: Exploded Views

    http://www.xiaoyu163.com SECTION 7 EXPLODED VIEWS 3 7 63 1515 0 NOTE: • Items marked “*” are not stocked since they • -XX and -X mean standardized parts, so they may have some difference from the original are seldom required for routine service. Some one.
  • Page 28 http://www.xiaoyu163.com 3 7 63 1515 0 (2) FRONT PANEL SECTION LCD901 not supplied (KEY board) L 13942296513 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-030-835-01 BUTTON (1-6) (OFF. SHIFT. 1. 2. 3. 4. 5. 6) 3-031-033-01 BUTTON (D/F/D) (6.
  • Page 29 http://www.xiaoyu163.com 3 7 63 1515 0 (3) MECHANISM DECK SECTION (MG-25F-136) HP901 M901 L 13942296513 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark A-3291-667-A CLUTCH (FR) ASSY 3-933-346-01 CATCHER * 152 3-019-130-01 LEVER (LDG-A) 3-933-344-01 GUIDE (C) * 153 3-019-131-01 LEVER (LDG-B) 3-014-798-01 SCREW (HEAD), SPECIAL...
  • Page 30 http://www.xiaoyu163.com SECTION 8 3 7 63 1515 0 ELECTRICAL PARTS LIST NOTE: When indicating parts by reference • Due to standardization, replacements in the • Items marked “*” are not stocked since they number, please include the board. parts list may be different from the parts speci- are seldom required for routine service.
  • Page 31 http://www.xiaoyu163.com MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-124-233-11 ELECT 10uF R951 1-216-037-00 METAL CHIP 1/10W 1-163-222-11 CERAMIC CHIP 0.25PF 50V R952 1-216-025-00 RES, CHIP 1/10W 1-163-231-11 CERAMIC CHIP 15PF R953 1-216-121-00 RES, CHIP...
  • Page 32 http://www.xiaoyu163.com MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C614 1-124-233-11 ELECT 10uF C209 1-163-227-11 CERAMIC CHIP 10PF 0.5PF C615 1-124-233-11 ELECT 10uF C210 1-163-227-11 CERAMIC CHIP 10PF 0.5PF C616 1-124-233-11 ELECT 10uF C211...
  • Page 33 http://www.xiaoyu163.com MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark D621 8-719-422-12 DIODE MA8039 JC121 1-216-295-00 SHORT JC151 1-216-295-00 SHORT D622 8-719-404-50 DIODE MA111-TX JC152 1-216-295-00 SHORT D623 8-719-422-12 DIODE MA8039 D624 8-719-422-97 DIODE MA8091-M JC173...
  • Page 34 http://www.xiaoyu163.com MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark Q251 8-729-920-21 TRANSISTOR DTC314TKH04 R182 1-216-065-00 RES, CHIP 4.7K 1/10W Q271 8-729-920-21 TRANSISTOR DTC314TKH04 R184 1-216-129-00 METAL CHIP 2.2M 1/10W Q281 8-729-920-21 TRANSISTOR DTC314TKH04 R185 1-216-085-00 METAL CHIP...
  • Page 35 http://www.xiaoyu163.com MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R527 1-216-097-00 RES, CHIP 100K 1/10W R713 1-216-025-00 RES, CHIP 1/10W R528 1-216-097-00 RES, CHIP 100K 1/10W R714 1-216-025-00 RES, CHIP 1/10W R751 1-216-049-11 RES, CHIP...
  • Page 36 XR-C6120 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark PARTS FOR INSTALLATION AND CONNECTIONS ************************************** 3-916-161-31 FRAME ASSY X-3370-076-1 SCREW ASSY (KEY), FITTING 3-934-325-01 SCREW, +K (5X8) TAPPING 3-924-961-01 SUPPORT (ND), FITTING...

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