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Everything fine: quick service, no glitch and above all a very good quality of the Pdf file. Thank you!
The manual was complete, parts list, adjustment procedures, etc. No worries
Very usefully, I could find the trouble clearly with that manual.
Bon produit. Permet de corriger les couleurs et de redonnez un petit coup de jeune Ã vos vieilles vidÃ©os. On regrettera juste le manque d'une prise s-vidÃ©o.
Quality scan of the actual service manual, just what I was looking for.
Record/Playback Head Azimuth Adjustment DECK A Procedure: 1. Forward Playback Mode
test tape P-4-A100 (10 kHz, â10 dB) 47 kâ¦ set level meter
Tape speed Adjustment Adjust DECK A first Procedure: â Forward Playback Mode â
test tape WS-48B (3 kHz, 0 dB)
frequency counter 47 kâ¦ set
2. Turn the adjustment screw for the maximum output levels. If these levels do not match, turn the adjustment screw until both of output levels match together within 1 dB.
output within 1 dB level
within 1 dB
(High speed adjustment) 1. Press the PITCH CONTROL button to set to OFF . 2. Set to test mode. (Refer to page 11.) 3. Press the Â· button to playback. 4. Press the HIGH/NORMAL button to playback at double speed. 5. Adjust RV316 (DECK A), RV416 (DECK B) so that the frequency counter reading becomes 5,980 Â± 180 Hz. (Normal speed adjustment) 6. Press the Â· button to playback. 7. Press the HIGH/NORMAL button to playback at normal speed. 8. Adjust RV317 (DECK A), RV417 (DECK B) so that the frequency counter reading becomes 3,000 Â± 90 Hz. (Pitch control adjustment) (DECK A) 9. Press the PITCH CONTROL button to set to ON . 10. Set PITCH CONTROL knob to mechanical center. 11. Press the Â· button to playback. 12. Adjust RV318 so that the frequency counter reading becomes 2,990 Â± 90 Hz. Adjustment Location: MAIN board (See page 14.)
R-CH peak L-CH peak R-CH peak
3. Playback Mode
test tape P-4-A100 (10 kHz, â10 dB) L-CH 47 kâ¦
Sample value of wow and flutter W.RMS (JIS) less than 0.3% . (test tape : WS-48B) Playback Level Adjustment Procedure: â Forward Playback Mode â
test tape P-4-L300 (315 Hz, 0 dB) 47 kâ¦
47 kâ¦ LINE OUT Screen Pattern
4. Change the reverse playback mode and repeat the steps 1 to 3. 5. After the adjustment, lock the adjustment screws with suitable locking compound. Adjustment Location: â record/playback head â
Adjust DECK A : RV111 (L-CH), RV211 (R-CH) and DECK B : RV121 (L-CH), RV221 (R-CH) so the level meter reading becomes the adjustment limits below. Adjustment Value: LINE OUT level : â7.7 Â± 0.5 dB (0.301 to 0.338 V) Level difference between channels : within 0.5 dB Confirm that the LINE OUT level does not change in playback mode while changing the mode from playback to stop several times.
Adjustment Location: MAIN board (See page 14.)
â 12 â