Sony Ericsson XR-C7500RX User Manual

SERVICE MANUALFM/MW/LW CASSETTE CAR STEREOAEP ModelUK ModelXR-C7500R/C7500RXE ModelXR-C7500RXModel Name Using Similar Mechanism XR-C7300/C5300RTape Tr

10SECTION 3DISASSEMBLYSUB PANEL ASS’YMECHANISM DECK (MG-25G-136)Note: Follow the disassembly procedure in the numerical order given.4 two claws1 s

11MAIN BOARDHEAT SINK (2P)2 three ground pointscrews3 rubber cap (25)1 three screws (PTT2.6 × 8)4 main board1 three screws (PTT2.6 × 8)2 two screws

12HOUSINGARM (SUCTION)Note: Follow the assembly procedure in the numerical order given.SECTION 4ASSEMBLY OF MECHANISM DECKA partC partB partD part

13LEVER (LDG-A) / (LDG-B)GEAR (LDG-FT)shaft Ashaft Bshaft C1 Fit the lever (LDG-A) onshafts A – C and install it.shaft Ashaft B2 Fit the lever (LDG-B)

14GUIDE (C)MOUNTING POSITION OF CAPSTAN/REEL MOTOR (M901)2 guide (C)1 three clawstwo precision screws(P2 × 2)capstan/reel motor(M901)30˚

15SECTION 5MECHANICAL ADJUSTMENTS• Tape Tension Measurement1. Clean the following parts with a denatured-alcohol-moistenedswab:playback head pinch r

16Adjustment Location:– SET UPPER VIEW –– SET BOTTOM VIEW –Tape Speed AdjustmentSetting:Procedure:1. Put the set into the FWD PB mode.2. Adjust ad

1717XR-C7500R/C7500RXSECTION 7DIAGRAMS7-1. BLOCK DIAGRAM – TUNER/TAPE Section –12FM-ANTAM-ANT53VSMAMSIN32TUNATT14S-METER10MPX8AM-DET9RDSDET05MUTING

1818XR-C7500R/C7500RX05H(Page 20)AMPONSYSTEM CONTROLLERIC600 (2/4)CN13 (2/2)AUDIOOUT FRONTAUDIOOUT REARMUTINGQ311MUTINGQ411MUTINGQ331MUTINGQ431FL+1121

1919XR-C7500R/C7500RXLED910 – 915(LCD BACK LIGHT)(XR-C7500RX)(XR-C7500R) (XR-C7500R)0580REIN1KEYACKGREEN7962TX138596OSCKEYIN1REIN0116 115KEYIN0X1X0X1A

2TABLE OF CONTENTS1. SERVICING NOTES ... 22. GENERALLocation of Controls ...

2020XR-C7500R/C7500RXB/U +5VRESET SIGNALGENERATORIC560REMOTE CONTROLRECEIVERIC951SIRCSBUFFERQ503BATTERYDETECTQ500S500684CLKCLK INDATA OUTDATA2RSTRESET

2121Note on Schematic Diagram:• All capacitors are in µF unless otherwise noted. pF: µµF50 WV or less are not indicated except for electrolyticsand t

2222XR-C7500R/C7500RX7-6. PRINTED WIRING BOARD – MAIN Board (Component Side) –Ref. No. LocationRef. No. Location• Semiconductor Location(Component

2323XR-C7500R/C7500RX1 9WHT/BLKWHTGRN/BLKGRNVIO/BLKVIOGRY/BLKGRYLIGHT BLUBLU/WHTORG/WHTBLUREDYELBLKFRONT LCH (–)FRONT LCH (+)REAR LCH (–)REAR LCH (+)R

2424XR-C7500R/C7500RX7-8. SCHEMATIC DIAGRAM – MAIN Board (1/4) – • See page 29 for Waveforms. • See page 32 for IC Block Diagrams.(Page 26)(Page 25)

2525XR-C7500R/C7500RX7-9. SCHEMATIC DIAGRAM – MAIN Board (2/4) – • See page 29 for Waveforms. • See page 32 for IC Block Diagrams.(Page24)(Page26)(

2626XR-C7500R/C7500RX7-10. SCHEMATIC DIAGRAM – MAIN Board (3/4) – • See page 29 for Waveforms. • See page 32 for IC Block Diagrams.(Page25)(Page27)(

2727XR-C7500R/C7500RX7-11. SCHEMATIC DIAGRAM – MAIN Board (4/4) – • See page 29 for Waveforms. • See page 32 for IC Block Diagrams.(Page 24)(Page26)

2828XR-C7500R/C7500RX7-12. PRINTED WIRING BOARD – SUB Board – 7-13. SCHEMATIC DIAGRAM – SUB Board –(Page 23)(Page 30)(Page 31)(Page 27)

2929XR-C7500R/C7500RX• Waveforms– MAIN Board –1 IC50 5 (OSCI)2 IC100 ra (XTLI38)3 IC100 ug (BCK)7 IC800 ih (EXTAL)6 IC600 os (X0)2.6 Vp-p231 ns980 mVp

3SECTION 2GENERALThis section is extracted frominstruction manual.5Location of controls1 MENU button9, 11, 12, 13, 15, 17, 18, 20, 21, 23, 24,26, 27,

3030XR-C7500R/C7500RX7-14. PRINTED WIRING BOARD – KEY Board –• SemiconductorLocation(Component Side)Ref. No. LocationIC951 C-5LED901 C-2LED902 A-2L

3131XR-C7500R/C7500RX7-15. SCHEMATIC DIAGRAM – KEY Board – • See page 29 for Waveforms. (Page28)

3232• IC Block Diagrams– MAIN Board –IC10 TDA7402TRIC50 SAA6588T/V2-118IC100 CXD2726Q-4343536373839404142434433 32 31 30 29 28 27 26 2524 232221201918

33IC201 LB1930M-TLMIC250 CXA2510AQ-T4 IC500 BA8270F-E212345678910VCCIN2S-GNDIN1NCNCOUT2NCP-GNDOUT1CONTROLCIRCUITMOTORDRIVECIRCUITBUFFERBUFFER+–+–+–+–+

347-16. IC PIN FUNCTION DESCRIPTION• MAIN BOARD IC100 CXD2726Q-4 (DIGITAL SIGNAL PROCESSOR, DIGITAL FILTER, D/A CONVERTER)Pin No. Pin Name I/

35Pin No. Pin Name I/O Description60 REDY OTransfer enable signal output to the system controller (IC600)“L”: transfer prohibition61 TRDT OSerial data

36• MAIN BOARD IC600 MB90574BPMT-G-265-BND (SYSTEM CONTROLLER)Pin No. Pin Name I/O Description1NCONot used (open)2 AMSIN IWhether a music is present

37Pin No. Pin Name I/O Description35 DSPLAT OSerial data latch pulse output to the CXD2726Q (IC100)36 DSPRST OReset signal output to the CXD2726Q (IC1

38Pin No. Pin Name I/O Description73 X1A OSub system clock output terminal (32.768 kHz)74 X0A ISub system clock input terminal (32.768 kHz)75 DAVN IDa

39Pin No. Pin Name I/O Description111 CD MDISetting terminal for the internal mechanism CD or MD“L”: CD, “H”: MD (fixed at “L” in this set)112NC INot

415 cmInstallationPrecautions•If you mount other Sony equipment with thisunit, it is better to mount this unit in the lowerposition.•There must be a d

40(1) GENERAL SECTIONSECTION 8EXPLODED VIEWS• Items marked “*” are not stocked since theyare seldom required for routine service. Somedelay should

41(2) FRONT PANEL SECTIONRef. No. Part No. Description RemarkRef. No. Part No. Description Remark51 3-041-004-01 BUTTON (1-6/D) (o MODE. 1. 2. 3. 4.

42(3) MECHANISM DECK SECTION(MG-25G-136)Ref. No. Part No. Description RemarkRef. No. Part No. Description Remark161 3-933-346-01 CATCHER162 3-933-34

43SECTION 9ELECTRICAL PARTS LISTKEYRef. No. Part No. Description Remark Ref. No. Part No. Description RemarkNOTE:• Due to standardization, replacem

44Ref. No. Part No. Description RemarkRef. No. Part No. Description RemarkLSW908 1-771-610-11 SWITCH, TACTILE (WITH LED) (o MODE)(C7500R)LSW908 1-771-

45Ref. No. Part No. Description RemarkRef. No. Part No. Description RemarkKEY MAIN< SWITCH >S901 1-771-884-11 SWITCH, TACTILE (WITH LED)(SEE

46Ref. No. Part No. Description RemarkRef. No. Part No. Description RemarkMAINC171 1-164-004-11 CERAMIC CHIP 0.1uF 10% 25VC172 1-131-353-00 TANTALUM 1

47Ref. No. Part No. Description RemarkRef. No. Part No. Description RemarkMAINC613 1-163-235-11 CERAMIC CHIP 22PF 5% 50VC614 1-163-235-11 CERAMIC CHIP

48Ref. No. Part No. Description RemarkRef. No. Part No. Description RemarkFB103 1-469-152-11 FERRITE 0uHFB104 1-469-152-11 FERRITE 0uHFB601 1-469-152-

49Ref. No. Part No. Description RemarkRef. No. Part No. Description RemarkR27 1-216-809-11 METAL CHIP 100 5% 1/16WR28 1-216-298-00 METAL CHIP 2.2 5% 1

5Installation in the dashboard Instalación en el salpicadero Montera på instrumentbrädan Instalação no tablier1 2 3Fire wallPanel cortafuegosBrandsäke

50Ref. No. Part No. Description RemarkRef. No. Part No. Description RemarkR431 1-216-845-11 METAL CHIP 100K 5% 1/16WR432 1-216-835-11 METAL CHIP 15K 5

51Ref. No. Part No. Description RemarkRef. No. Part No. Description RemarkR661 1-216-089-00 RES-CHIP 47K 5% 1/10WR662 1-216-085-00 METAL CHIP 33K 5% 1

52Ref. No. Part No. Description RemarkRef. No. Part No. Description RemarkXR-C7500R/C7500RX**************HARDWARE LIST**************#1 7-685-793-09 SC

6ConnectionsCautions•This unit is designed for negative earth 12 V DCoperation only.•Be careful not to pinch any wires between ascrew and the body of

76AMP REMATTMax. supply current 0.3 ACorriente máx. de alimentación de 0,3 AMaximal strömtillförsel 0,3 ACorrente máxima de 0,3 Ato the interface cabl

8(XR-C7500RX: E)

9Power connection diagramAuxiliary power connector may vary depending onthe car. Check your car’s auxiliary power connectordiagram to make sure the co