Sony CFS-616S free download

File name CFS-616S.pdf

CFS-616S SERVICE MANUAL Ver 1.0 1999. 01 E Model Model Name Using Similar Mechanism Tape Transport Mechanism Type NEW MF-W616-148 SPECIFICATIONS RADIO CASSETTE-CORDER MICROFILM CFS-616S 6-4. SCHEMATIC DIAGRAM ­ TUNER Section ­ · IC Block Diagram IC1 CXA1238S FM/AM FE OUT 16 13 14 15 BAND SELECT FM IF IN AM IF IN TUNE IND FM DISCRI MPX REG PLL LPF2 FM RF AM RF IN FM RF IN AM OSC 30 29 28 27 26 25 24 23 22 21 20 19 18 17 FM FRONT-END AM FRONT-END REGULATOR VCO MPX REGULATOR FM IF/ DISCRI 1/2 COUNTER 1/2 COUNTER PD1 PD2 AUTO BLEND TUNING INDICATOR MONO/STEREO SELECT MUTING BAND-PASS MUTE DECORD AMP RIPPLE FILTER 1 PLL LPF1 2 PILOT DET LPF2 3 PILOT DET LPF2 4 ST IND/VCO CHECK 5 R-CH OUT 6 L-CH OUT 7 VCC 8 RIPPLE FILTER 9 AGC AFC1 10 11 12 AGC AFC2 GND Note on Schematic Diagram: · All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. · All resistors are in and 1 /4 W or less unless otherwise specified. ў · : internal component. · C : panel designation. · U : B+ Line. · H : adjustment for repair. · Power voltage is dc 9V and fed with regulated dc power supply from battery terminal. · Voltages are dc with respect to ground under no-signal (detuned) conditions. no mark : FM ( ) : MW < > : SW · Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production tolerances. · Signal path. F: FM/SW f: MW · Abbreviation EA: Saudi Arabia model. ­ 21 ­ ­ 22 ­ ­ 23 ­ FM GND FM OSC REG MUTE GND VCO AFC AM IF/ DET CFS-616S 6-6. SCHEMATIC DIAGRAM ­ MAIN Section ­ · See page 31 for IC Block Diagrams. · Waveforms ­ MAIN Board ­ 1 T301 (REC mode) 10V/DIV, 5 µs/DIV 45.2 Vp-p 14.4 µs 2 T301 (REC mode) 1V/DIV, 5 µs/DIV 4.8 Vp-p 14.4 µs Note on Schematic Diagram: · All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. · All resistors are in and 1 /4 W or less unless otherwise specified. · C : panel designation. Note: The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. · U : B+ Line. · H : adjustment for repair. · Power voltage is dc 9 V and fed with regulated dc power supply from battery terminal. · Voltages and waveforms are dc with respect to ground under no-signal conditions. no mark : TAPE PLAY ( ) : TAPE REC · Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production tolerances. · Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances. · Circled numbers refer to waveforms. · Signal path. F : TUNER E : TAPE PLAY (DECK A) d : TAPE PLAY (DECK B) G : TAPE REC (DECK B) N : MIC INPUT ­ 27 ­ ­ 28 ­ ­ 29 ­ ­ 30 ­