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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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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.
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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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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.
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Very complete shop manual. It contains everything needed to troubleshoot bascially any problem. Instructions, diagrams, schmeatics, illustrations... it's all there. Highly recommended!
Alignment and Adjustment
2-2 Tape Transport System Adjustment
When parts are replaced, perform the required adjustments by referring to procedures for the tape transport system. If there are any changes to the tape path, first run a T-120 tape and make sure excessive tape wrinkle does not occur at the tape guides. 1) If tape wrinkle is observed at the guide roller S, T, turn the guide roller S, T until wrinkle disappears. 2) If the tape wrinkle is still observed at the tape guide, perform the tilt adjustment of the ACE head. (See page 5-3 of the Service Manual for Test Point Locations.)
2-2-1(b) ACE HEAD TILT ADJUSTMENT
1) Playback a blank tape and observe the position of the tape at the lower flange of tape guide. 2) Confirm that there is no curl or wrinkle at the lower flange of tape guide as shown in Fig. 2-5 (B). 3) If a curl or wrinkle of the tape occurs, slightly turn the screw (A) tilt adjust on the ACE head ass�y. 4) Reconfirm the ACE head height.
(A) (B)
2-2-1 ACE Head Assembly Adjustment
2-2-1(a) ACE HEAD HEIGHT ADJUSTMENT
1) Run the alignment tape (Color bar) in the playback mode. 2) Observe surface of the audio head using a dental mirror. 3) Turn screw (C) clockwise or counterclockwise until the gap of lower tape edge and the lower edge of the control head is about 0.25mm. (Refer to Fig. 2-3 and 2-4)
WRINKLE
(BAD)
(GOOD)
Fig. 2-5 Tape Guide Check
2-2-1(c) AUDIO AZIMUTH ADJUSTMENT
1) Load alignment tape (Mono scope) and playback the NTSC : 7KHz (PAL : 6KHz) signal. 2) Connect channel-1 scope probe to audio output test point. 3) Adjust screw (B) to achieve maximum audio level. (See Fig. 2-3)
SCREW (A) TLIT ADJUST
SCREW (C) HEIGHT ADJUST
X-POSITION ADJUSTING SLIT SCREW (B) AZIMUTH ADJUST
SCREW (D) X-POSITION LOCKING
2-2-1(d) ACE HEAD POSITION (X-POINT) ADJUSTMENT
1) See page 5-1 of the Service Manual for ACE Head position (X-Point) adjustment.
Fig. 2-3 Location of ACE Head Adjustment Screw
AUDIO HEAD VIDEO HEAD
0 ~ 0 .25 mm CONTROL HEAD
Fig. 2-4 ACE Head Height Adjustment
2-2
Samsung Electronics
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