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Very easy site. Great service and quick release for download. Manuals are of good quality.
Joop - The Netherlands
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Very good manual, in depth and complete. Only criticism is that some of the circuit diagrams are slightly blurry and hard to follow for long periods of time, but this is to be expected. Perfect for any maintenance required. Also contains the wiring diagrams of the control cable for constructing extensions.
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Detailed SONY CFD980 Service Manual at an easy to find one stop shopping. Make my radio hobby technically interesting. Thanks.
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ELECTRICAL ADJUSTMENTS
ADJUSTMENT PROCEDURES
Read and perform these adjustments when repairing the circuits or replacing electrical parts or PCB assemblies. CAUTION: Inferior silicon grease can damage transistors. When replacing transistors, use only specified silicon grease. Remove all old silicon before applying new silicon.
2. COMB FILTER
CONDITIONS MODE-STOP Input Signal-NTSC Multiburst (VIDEO IN JACK) INSTRUCTIONS 1. Connect the video signal generator to VIDEO IN JACK. 2. Connect CH-1 on the oscilloscope to TJ303 and CH-2 to TJ304. 3. Trigger the scope with CH1. 4. Adjust R494 until the 3.58MHz component of multiburst signal becomes minimum. (Refer to Fig. 5-2)
1. PG SHIFTER
CONDITIONS MODE-PLAYBACK Input Signal-Alignment Tape (DN-1). INSTRUCTIONS 1. Connect CH-1 on the oscilloscope to pin ¤� of PT01 and CH-2 to Video output JACK. 2. Adjust R595 so that the waveform of the oscilloscope measures 6.5±0.5(H) at both leading and trailing edges. (Refer to Fig. 5-1-A, B)
Fig 5-2
CH-2
3. AUDIO BIAS
6.5H CH-1
CONDITIONS MODE-RECORD (SP MODE) Input Signal-Audio Signal : No Signal INSTRUCTION Connect the AC voltmeter as shown, then adjust the voltage to 3.0±0.1mVrms with R292 (Refer to fig. 3-6).
Fig 5-1-A
CH-2
A/C Head. AC Voltmeter TP2 TP1 (GND)
CH-1 6.5H
Fig 5-1-B
Fig 5-3
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