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XR-C7500R/C7500RX
SERVICE MANUAL AEP Model
UK Model
XR-C7500R/C7500RX
E Model
XR-C7500RX
(XR-C7500R/C7500RX: AEP, UK) Photo: XR-C7500R
For RM-X4S (Remote Commander),
please refer to RM-X4S Service Manual
(9-925-698-S) previously issued.
Dolby noise reduction manufactured under license
Model Name Using Similar Mechanism XR-C7300/C5300R
from Dolby Laboratories Licensing Corporation.
Tape Transport Mechanism Type MG-25G-136
“DOLBY” and the double-D symbol ; are trade-
marks of Dolby Laboratories Li
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SECTION 1 SERVICING NOTES TABLE OF CONTENTS MODEL IDENTIFICATION The XR-C7500R and XR-C7500RX have three types of MAIN boards respectively. 1. SERVICING NOTES ............................................... 2 – MAIN BOARD (Conductor Side) – 2. GENERAL Location of Controls ....................................................... 3 Setting the Clock ............................................................. 3 Installation .....................................................................
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+ T S P R R P S T - + D I C S S SECTION 2 This section is extracted from instruction manual. GENERAL Setting the clock Location of controls The clock uses a 24-hour digital indication. Example: To set the clock to 10:08 1 Press (MENU), then press either side of (PRST/DISC) repeatedly until “Clock” OPEN PTY DSPL appears. DSO MENU LIST TA SOURCE -SEEK/AMS AF SOUND ENTER REP SHUF MODE 1 2 3 4 56 1 Press (ENTER). OFF XR-C7500RX/XR-C7500R The hour indication flashes. Refer to the pages listed for de
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Installation Instalación Montering Instalação Precautions Precauciones Säkerhetsföreskrifter Precauções •If you mount other Sony equipment with this •Si monta otro equipo Sony con esta unidad, es •Om du monterar annan Sony-utrustning till •É preferível montar este aparelho na posição unit, it is better to mount this unit in the lower preferible montar esta unidad en la posición más denna enhet är det bäst att montera denna enhet mais baixa, se quiser montar simultaneamente position. baja. i det
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182 mm 53 mm Installation in the dashboard Instalación en el salpicadero Montera på instrumentbrädan Instalação no tablier 1 2 3 4 Dashboard Fire wall Salpicadero Panel cortafuegos Instrumentbräda Brandsäker Tablier mellanvägg Painel corta-fogo 1 5 4 Bend these claws outward 2 for a tight fit, if necessary. 7 Si es necesario, doble estas 5 uñas hacia afuera para que 7 1 encaje firmemente. 7 För att få en tät passning 5 3 böj dessa flikar vid behov. Se necessário, dobre as unhas para prender melh
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Connections Conexiones Anslutning Ligações Cautions Precauciones Säkerhetsföreskrifter Cuidado •This unit is designed for negative earth 12 V DC •Esta unidad ha sido diseñada para alimentarse •Denna bilstereo är endast avsedd för anslutning •Este aparelho foi concebido para funcionar operation only. con 12 V CC, negativo a masa, solamente. till ett negativt jordat, 12 V bilbatteri. somente com corrente contínua de 12 V com •Be careful not to pinch any wires between a •Tenga cuidado de no atrapar
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(XR-C7500R/XR-C7500RX: AEP, UK) Connection example Ejemplo de conexiones Anslutningarna enligt exemplet Exemplo de ligações 1 1 1 1 * Note for the aerial connecting * Nota sobre la conexión de la antena * Angående antennanslutning * Nota referente à ligação da antena If your car aerial is an ISO (International Si la antena del automóvil es del tipo ISO Om motorantennen är av ISO-typ (International Se a antena do automóvel for uma antena de tipo Organisation for Standardisation) type, use the (In
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(XR-C7500RX: E) 8
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Power connection diagram Diagrama de conexión de Strömanslutningsschema Diagrama de ligação de corrente Auxiliary power connector may vary depending on Typen av yttre strömanslutning varierar från bil till O conector auxiliar de corrente pode variar de carro alimentación the car. Check your car’s auxiliary power connector bil. Kontrollera schemat till strömanslutningen så att para carro. Verifique o diagrama do conector auxiliar El conector de alimentación auxiliar puede variar en diagram to mak
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SECTION 3 DISASSEMBLY Note: Follow the disassembly procedure in the numerical order given. 1 screw (PTT2.6 × 5) SUB PANEL ASS’Y 2 cover 4 two claws 6 sub panel ass’y 3 screw (PTT2.6 × 6) 5 flexible flat cable 3 four screws (CN580) (PTT2.6 × 6) 4 claw 3 screw (PTT2.6 × 6) MECHANISM DECK (MG-25G-136) 3 screw (PTT2.6 × 6) 4 mechanism deck (MG-25G-136) 2 connector (CN201) 1 flexible board (CN250) 10
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MAIN BOARD 3 rubber cap (25) 1 three screws (PTT2.6 × 8) 2 three ground point screws 4 main board HEAT SINK (2P) 1 three screws (PTT2.6 × 8) 2 two screws (PTT2.6 × 12) 3 heat sink (2P) 1 three screws (PTT2.6 × 8) 11
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SECTION 4 ASSEMBLY OF MECHANISM DECK Note: Follow the assembly procedure in the numerical order given. HOUSING 7 Hold 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. hanger 4 Fit claw on B part. 3 Put the housing 6 Fit projection on D part. under A part. housing C part 8 Hold the hanger by bending the claw. D part A part B part ARM (SUCTION) 2 Move the arm (suction) in the arrow direction
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LEVER (LDG-A) / (LDG-B) shaft A shaft A shaft B shaft B shaft C 1 Fit the lever (LDG-A) on 3 type-E stop ring 2.0 shafts A – C and install it. 2 Fit the lever (LDG-B) on shafts A and B and install it. GEAR (LDG-FT) gear (LDG-D) 6 polyethylene washer hole 5 gear (LDG-FT) hole lever (LDG-A) gear (LDG-FB) 4 Align hole in the gear (LDG-D) with hole the lever (LDG-A). 1 2 tension spring (LD-2) 3 Move the lever (LDG-B) 2 tension spring (LD-1) in the direction of the arrow . 13
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GUIDE (C) 2 guide (C) 1 three claws MOUNTING POSITION OF CAPSTAN/REEL MOTOR (M901) two precision screws (P2 × 2) capstan/reel motor (M901) 30˚ 14
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SECTION 5 SECTION 6 MECHANICAL ADJUSTMENTS ELECTRICAL ADJUSTMENTS 1. Clean the following parts with a denatured-alcohol-moistened TEST MODE swab: This set has the test mode function. playback head pinch roller rubber belt capstan idler 1. Turn ON the regulated power supply. (The clock is displayed) Note: Press the [OFF] button, if the clock is not displayed. 2. Demagnetize the playback head with a head demagnetizer. 2. Press the preset [4] button. 3. Do not use a magneti
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Adjustment Location: TAPE DECK SECTION 0 dB=0.775 V – SET UPPER VIEW – Tape Speed Adjustment Setting: speed checker or frequency counter test tape Tape Speed Adjustment WS-48A (3 kHz, 0 dB) 10 kΩ TUX1 set – + LINE OUT REAR jack (CN13) RV240 Procedure: Dolby Level Adjustment (R-CH) 1. Put the set into the FWD PB mode. 2. Adjust adjustment resistor for inside capstan motor so that the reading on the speed checker or frequency counter becomes in RV230 specification. Dolby Level Adjustment (L-CH
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XR-C7500R/C7500RX SECTION 7 DIAGRAMS 7-1. BLOCK DIAGRAM – TUNER/TAPE Section – BACKUP +5V TUNER VCC TUNER +5V FM/AM TUNER UNIT TUX1 J1 11 5 16 (FM/AM ANTENNA) MPX 2 FM-ANT MPX (Page 18) 10 A 1 AM-ANT MUTING Q22 AM (Page 18) AM-DET 8 B 17 18 4 14 9 12 13 19 MUTING Q21 MUTING CONTROL SWITCH Q20 D20 BUFFER AM-IF Q50 (Page 18) C TAPE L (Page 18) D DATA,CLOCK (Page 18) E TAPE EQUALIZER AMP, DOLBY NR AMP, AMS IC250 RV230 HP901 (PLAYBACK) DOLBY LEVEL (L) PBF RDS DECODER PB TAPE LINE FWD IN1 5 IC50 S
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XR-C7500R/C7500RX 7-2. BLOCK DIAGRAM – MAIN Section – • SIGNAL PATH : FM : MW/LW DIGITAL SIGNAL PROCESSOR, CENTER VOLTAGE : TAPE PLAY DIGITAL FILTER, ELECTRICAL VOLUME AUDIO GENERATOR R-CH D/A CONVERTER IC10 (2/2) : BUS AUDIO IN +9V (FOR BIAS) IC100 IC41 CN13 (2/2) FL-OUT ACINLF OUTLF 35 LIN 27 LOW-PASS 30 AOUTL1 34 L MONO FADER MIXER RL-OUT FILTER ACINLR OUTLR AOUTR1 29 33 29 IC301 AUDIO MUTING OUT FRONT FR-OUT Q311 54 R-CH AOUTR3 R-CH 46 RIN RR-OUT OUTSWR SWINR SUBWOOFER+ MONO R-CH R AOUTL3
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XR-C7500R/C7500RX 7-3. BLOCK DIAGRAM – DISPLAY/KEY CONTROL Section – D520 LSW801,901–917, S901 – 904 RE901 ROTARY ENCODER VOLUME/BALANCE/ J520 RE901 FADER CONTROL REMOTE IN D580 S600 LED801 KEY ACTIVE LED DRIVE (NOSE DETECT) (TAPE WINDOW), SWITCH B/U +5V BATT B+ Q580 LSW801 Q406, 407 Z 48 72 46 116 115 79 80 117 47 118 SYSTEM CONTROLLER IC600 (3/4) 4 106 12 13 93 92 73 74 CNP801 (XR-C7500R) X601 X600 CN801 3.68MHz 32.768kHz CN901 (XR-C7500RX) FRONT PANEL SIDE MAIN BODY SIDE 8 1 DSPDATA,DSPCKO
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XR-C7500R/C7500RX 7-4. BLOCK DIAGRAM – BUS CONTROL/POWER SUPPLY Section – SYSTEM CONTROLLER CN700 (2/2) IC600 (4/4) (POWER CONNECTOR) REMOTE CONTROL RECEIVER IC951 D703 7 ACCESSORY ACCIN 81 D501 SIRCS CHECK ACC 3 BUFFER 24 SIRCS Q660 SIRCS Q503 RAM RESET 85 RAMBU B/U +5V IC570 ILLUMINATION D705 14 ILLIN 95 LINE DETECT ILL RESET SIGNAL Q640 B/U +5V GENERATOR 90 RESET IC560 86 HSTX BATT B+ S500 POWER AMP (IC700) B+ RESET D801 +5V REGULATOR B/U +5V IC550 SONY BUS INTERFACE IC500 +3.3V REGULATOR D
