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I thank Owen-Manuals.com for the wonderful service rendered to me, and this manual which I purchased helped me a lot in servicing my Denon System, which was lying in a dead state.
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I purchased this manual to repair my Teac set and with the support of this manual I rectified the problem.
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Excellent service manual, i didn't believe i could find it for such old product, it is very explanatory, managed to fix the disk player!!!
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Nice manual. Clear copy and very rare, to boot. Great price, too!
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Excellent service manual. Complete service info. with schematics, step-by-step instructions and illustrations. Well worth the price!
1.2.5 Disc Determination
Determination is achieved by checking the sine wave by sweeping the lens with the OE IC gain at L and the FSC error amplifier (SGC) at the default setting. If no sine wave is detected, checking is retried after switching the OE IC gain to H and increasing the gain of the FSC error amplifier (SGC). If no sine wave is detected again, it is regarded as the NO DISC condition. If one half of the sine wave detected at the first lens sweep is of a value less than 0.5 V, the OE IC gain is set to H and the peak-topeak value of the sine wave is roughly adjusted to 1.8 Vp-p. By sweeping the lens around the height where the sine wave has been detected, disc determination is performed, and the sine wave is finely adjusted to 1.8 Vp-p.
Offset compensation
Lens sweep
Checking the sine wave None OEIC gain = H FCS AMP gain up
Yes
Level check
Less than 0.5V
More than 0.5V
Lens sweep
OEIC gain = H
Checking the sine wave None NO DISC
Yes
Roughly adjust to 1.8Vp-p sine wave
Disc determination
Finely adjust to 1.8Vp-p sine wave END
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