Sony XR-4900 free download

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XR-4900 SERVICE MANUAL E Model Model Name Using Similar Mechanism Tape Transport Mechanism Type XR-C5100 MG-25F-136 SPECIFICATIONS ­ Continued on next page ­ FM/MW/SW CASSETTE CAR STEREO MICROFILM XR-4900 6-2. SCHEMATIC DIAGRAM -- MAIN (1/2) SECTION -- · Refer to page 18 for Waveforms. · Refer to page 19 for Printed Wiring Board. · Refer to page 29 for IC Block Diagrams. ­ 21 ­ ­ 22 ­ XR-4900 6-3. SCHEMATIC DIAGRAM -- MAIN (2/2) SECTION -- · Refer to page 18 for Waveforms. · Refer to page 19 for Printed Wiring Board. · Refer to page 29 for IC Block Diagrams. ­ 23 ­ ­ 24 ­ XR-4900 6-5. SCHEMATIC DIAGRAM -- PANEL SECTION -- (Page 24) ­ 27 ­ ­ 28 ­ · IC Block Diagrams ­ MAIN Board ­ IC301 IC351 LB1930M-TLM CXA2509AQ-T4 LINEOUT2 TAPEIN2 PBOUT2 AUXIN2 PBEQ2 MSSW DIREF IC21 TB2118F (EL) AM CP OUT FM CP OUT A-GND D-GND AM IN FM IN GND NC VCC 1 NC 2 IN1 3 IN2 4 VDD REG VCC IFC VT 10 NC BUFFER CONTROL CIRCUIT BUFFER MOTOR DRIVE CIRCUIT 9 OUT1 8 NC 7 OUT2 6 P-GND XI 30 29 28 27 26 25 24 23 22 21 24dB 24 23 22 21 20 19 18 17 AMP 16 15 14 13 120µ/70µ T2 ­ + PBFB2 31 PBRIN2 32 PBREF2 33 F2 TAPE EQ FWD/RVS NR BIAS X1 TAPE/AUX + ­ + VCC 4BIT SWALLOW COUNTER SEEK/RECP PRESCALLER 12BIT PROGRAMMABLE COUNTER ­ + + ­ VDD AMP NC 20 MSMODE MS MODE 19 DRSW 18 TAPESW 17 INSW 16 NC S-GND 5 REGULATOR SEEK/RECP AMP + PBFIN2 34 PHASE COMPARATOR REF SIG VCT 35 PBGND 36 20BIT IF COUNTER VCT + LPF VCC + ­ F3 X1 MS ON/ 15 NC OFF DETECT 14 MSOUT OSCILLATOR REFERENCE DIVIDER 40BIT SHIFT REGISTER 18BIT 22BIT PBFIN1 37 PBREF1 38 PBRIN1 39 PBFB1 40 T1 ­ + + ­ F1 13 DGND ON/OFF BUFFER 18BIT 12 MSTC 11 G1FB SERIAL INTERFACE I/O PORT VDD2 OUTPUT PORT 120µ/70µ 1 PBEQ1 24dB 6 MSLPF 2 PBOUT1 3 VCC 4 5 TAPEIN1 AUXIN1 7 LINEOUT1 8 NC 9 NC + ­ 10 G2FB 1 XO 2 OSC 3 4 5 6 CE DIN CK DOUT 7 SR 8 I/O-1 9 I/O-2 10 11 OUT-1 OUT-2 12 VDD2 IC661 IC331 TDA7462D 28 27 26 25 24 23 SE3L SE3R MUTE SDA SCL PAUSE BA3918-V2 REGULATOR PAUSE DETECT INPUT GAIN & AUTO ZERO TREBLE/ BASS CONTROL CIRCUIT FRONT FADER INPUT MULTIPLEXER & MIXING STAGE FRONT FADER COMPANDER 21 OUT FR 1 2 3 4 MODE2 MODE1 STB 5 VDD 6 AMP 7 VCC 8 ANT 9 COM 10 AM 11 FM REAR SIDE SELECTOR REAR FADER LOUDNESS CONTROL CIRCUIT 20 OUT RL INPUT GAIN REAR FADER 19 OUT RR IC751 TDA7384 BEEP SUBWOOFER LP FADER 18 SUBOUT+ 17 SUBOUT­ SDA SUBWOOFER OUT IIC BUS DIGITAL CONTROL CIRCUIT SCL 16 VDD 15 GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 ­ 29 ­ TAB PW-GND OUT2­ ST-BY OUT2+ Vcc1 OUT1­ PW-GND1 OUT1+ SVR IN1 IN2 S-GND IN4 IN3 AC-GND OUT3+ PW-GND3 OUT3­ Vcc2 OUT4+ MUTE OUT4­ PW-GND4 DIAGNOSTICS OUT CREF 14 POWER SUPPLY ­ 30 ­ GND NC + ­ 12 + ­ + ­ SE1L SE1R MD+ MD­ CDL+ CDL­ CDR­ CDR+ PDR PDGND PDL SE2L SE2R 1 2 3 4 5 6 7 8 9 10 11 12 13 FRONT SIDE SELECTOR LOUDNESS CONTROL CIRCUIT VOLUME CONTROL CIRCUIT SOFT MUTE VOICE BANDPASS HP LP 22 OUT FL OVER VOLTAGE PROTECT 6-6. IC PIN FUNCTION DESC