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Great manual, great price. Has a few of the basic operating instructions that most service manuals leave out. Complete instructions for disassembling board by board, safety precautions, schematics, complete parts list.
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I am very pleased with the service manual for my RT-909. This was an easy purchase and great procuct, and much cheaper than other venues i had looked at. This web site is now listed in my favorites list. KEEP UP THE GOOD WORK. THANKS. J. BROWN
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A very well written and easy to understand manual.
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There was no problem at all.After paying i had to wait only a few hours,than i could
download the manual in best pdf-quality.
Thank You !
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I found this service manual to be complete in every detail except for troubleshooting charts. It would be helpful if it had a set of troubleshooting charts; however it is a very good manual otherwise and for the price it is very well worth it.
PDR-W739
6.5.4 Focus Bias Adjustment
Test Point Adjustment Point Adjustment Value Symptom when out of adjustment [Procedure]
(1) Press the SYNCHRO button in Stop mode. Note: Make sure the unit is in Stop mode. (2) Check that "OPT" disappears on the FL display. (3) Press the AUTO SPACE button so that "CDR 04ff34��" appears on the FL display. (4) Press the FINALIZE button for focus-in. (5) Press the PLAY/PAUSE 6 button for CAV-servo spindle kick. (6) Press the PLAY/PAUSE 6 button to close the tracking servo, then set the unit to Playback mode. (7) Adjust with the REC LEVEL knob until the above adjustment value to be reached is obtained. Press the REC LEVEL knob to register the adjustment. Once the adjustment is registered with the REC LEVEL knob, " ERASE " on the FL display will disappear. (8) Press the STOP button to stop the unit. CN102 - pin 1 (RF) SYNCHRO button, REC LEVEL knob Adjust until RF jitter is minimal or that the eye pattern of the RF waveform is most open. Sound broken, record characteristics deteriorate
RF 10 : 1 VC 10:1 probe Jitter Meter or Oscilloscope
Note: Adjustment must be done around mid-radius on a disc.
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