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Received a quick response, material was exactly what it was supposed to be. The service did everything I expected it to do. would use service again.
Detailed SONY CFD980 Service Manual at an easy to find one stop shopping. Make my radio hobby technically interesting. Thanks.
Excellent service from Owner-Manuals.com, good prices and quick turn around. The supplied PDF was good enough quality to be enlarged sufficiently to read component values.
Very complete shop manual. It contains everything needed to troubleshoot bascially any problem. Instructions, diagrams, schmeatics, illustrations... it's all there. Highly recommended!
Great product, very good quality, found all needed information. Thanks
FUNCTION OF MICOM IC 9-2. PIN DESCRIPTIONS
1 80 78 77
XIN XOUT EO1 EO2
CONNECTION TO 4.5 MHz CRYSTAL
OUTPUT COMPAIRED WITH PHASE IF LOCAL OSCILLATION FREQUENCY IS HIGHER THAN STANDARD FREQUENCY. OUTPUT IS HIGH, IF NOT OUTPUT IS LOW, AND IF SAME OUTPUT IS HIGH-Z. OUTPUT TERMINAL FOR AM 2ND CHANGE PUMP. (IF STANDARD FREQUENCY OF AM IS 90kHZ) --REFER TO ATTACHED PAGE. POWER TERMINAL
73,31 VDD 75 74 72 70 69 FMIN AMIN SUBPD HCTR LCTR INPUT TERMINAL IF FM VCO(LOCAL OSCILLATION) INPUT RANGE: INPUT TERMINAL IF AM VCO(LOCAL OSCILLATION) INPUT RANGE: OUTPUT OF PLL LOCK UP SUB FOR SPEEDY PLL LOCK. REFER TO ATTACHED PAGE ABOUT CIRCUIT USED. INPUT TERMINAL OF FM IF COUNT INPUT RANGE : 107MHz + 30kHz, Vpp= INPUT TERMINAL OF AM IF COUNT INPUT RANGE : 450kHz + 1kHz (AM) : 450kHz + 0.37kHz (LW) Vpp= PART THAT CHECKS DAMAGE OF BACK-UP MEMORY AFTER COMING BACK TO (BACK-UP)MODE. REFER TO ATTACHED PAGE ABOUT CIRCUIT USED. CONTROL TERMINAL OF BACK UP MODE. IF INPUT IS HIGH, WORKING IS NORMAL. IF INPUT IS LOW, IT REVERTS TO BACK UP MODE. IF INPUT OF (ACC)IN IS LOW ACCORDING TO CLOCK OPTION CLOCK IS DISPLAYED. TEST PORT (CONNECTED TO GROUND) RECEIVING RDS DATA FROM RDS DEMODULATOR IC. REFER TO ATTACHED PAGE ABOUT DATA TIMING CHART. I I O I I
79 2 12 11 55
TEST1 TEST2 PE2 PE3 INT1
I I I
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