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Very quick and easy website to use and fast download of manual, quality of manual is excellent and will be pleased to use this service again in the future, thanks so much!
Easy and secure way to get a complete service manual of a vintage hifi component. Only some parts of the print copy are dificult to read. Nice price!
The manual is an excellent reproduction with complete schematics, made troubleshooting and repair a simple process.
Up to now you are the BEST! Prompt-efficient and so reasonable ! I have been after SONY service manual for quite some time !Thank you very much ! I can recomend your service to
all my collegagues ! V.Bergfield .
This is a very good quality print (scan) of the original SONY service manual. The original from Sony is on very thin paper. Nevertheless it is very clear and sharp and excellent readable. I'm very satisfied to have now this rare document. I've looking for it many years (infrequent). It contains very detailed circuit diagrams, exploded views, part lists, PCB view with good readable connection lines. Very recommended.
(4) Adjust the AUDIO OUT waveform and Control pulse waveform by turning the screws (1), (2) and (3) little by little until both waveforms reach maximum. The screw (1) and (3) are for adjustment of tilt and the screw (2) for azimuth.
Level drop at the guide roller (supply side) C D (2)
A/C head (3) Level drop at the guide roller (take-up side)
AUDIO OUT â¢ Proper waveform variation: Always flat
CTL. P â¢ Improper waveform variation: Higher
Fig. 2-3-2a 2.3.3 A/C head phase (X-value) Fig. 2-3-1c
(A1) (B) (C) (D) (E) (F) (G) (H)
Equipment Measuring point External trigger
â¢ Alignment tape(SP, stairstep, PAL) [MHPE] â¢ PB â¢ Oscilloscope â¢ TP106 (PB. FM) â¢ TP111 (D.FF) â¢ A/C head base [Mechanism assembly] â¢ Maximum V.PB FM waveform â¢ A/C head positioning tool [PTU94010]
(a) Guide roller
Adjustment part Specified value Adjustment tool
(b) Guide pole
Fig. 2-3-1d 2.3.2 Height and tilt of the A/C head Note: â¢ Set a temporary level of the height of the A/C head in advance to make the adjustment easier after the A/C head has been replaced. (See Fig.2-2-6c.)
Signal Mode Equipment Measuring point External trigger Adjustment part Specified value (A) (B) (C) (D1) (D2) (E) (F) (G)
â¢ Alignment tape(SP, stairstep, PAL) [MHPE] â¢ PB â¢ Oscilloscope â¢ AUDIO OUT terminal â¢ TP4001 (CTL. P) â¢ TP111 (D.FF) â¢ A/C head [Mechanism assembly] â¢ Maximum waveform
(1) Play back the alignment tape (A1). (2) Apply the external trigger signal to D.FF (E), to observe the V.PB FM waveform at the measuring point (D). (3) Set the VCR to the manual tracking mode. (4) Loosen the screws (4) and (5), then set the A/C head positioning tool to the innermost projected part of the A/ C head. (See Fig. 2-3-3a.) (5) Turn the A/C head positioning tool fully toward the capstan. Then turn it back gradually toward the drum and stop on the second peak point position of the V.PB FM waveform output level. Then tighten the screws (4) and (5). (6) Perform the tracking operation and make sure that the V.PB FM waveform is at its maximum. If it is not at maximum, loosen the screws (4) and (5), and turn the A/C head positioning tool to bring the A/C head to a position, around where the waveform reaches its maximum for the first time. Then tighten the screws (4) and (5).
(1) Play back the alignment tape (A). (2) Apply the external trigger signal to D.FF (E), to observe the AUDIO OUT waveform and Control pulse waveform at the measuring points (D1) and (D2) in the ALT mode. (3) Set the VCR to the manual tracking mode.