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Everything in the manual was excellent except for a couple of pictures of specific areas in the unit that were a little dark. Owners Manuals re-sent the pdf file & the problem was corrected. Excellent product! George
Thanks for offering this item at such a good price. Proved handy in identifying the part I was looking for my set.
This is the original manufacturers service manual, with detailed info on the circit boards, explosion drawings of all parts in assembly order, and tuning instructions. The only thing missing is the information on the dimensions of the various drive belts. mail me if you need them. gcrossman_at_aol.com
Ordered service manuel for a hard to find plasma tv - your company made it easy to find and purchase - I will use you again
Thanks for your help
This is a high quality manual with clear schematic and components layout diagrams ; with service procedure included.
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
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¦
(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 H 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± 80 Hz. (Normal speed adjustment) 6. Press the H 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 H 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.)
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 dBs 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.)