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Thanks for this "hard to find" service manual. This Sony PS212A is a very good turntable that needed to be restored !
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Excellent quality on these manuals. Same as having the original printed manual and incredibly useful when doing a custom install like me. Keep it up on the good work.
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This is an excellent information source. Great quality and tons of info regarding technical service for the Technics SH8065.
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5 stars on this manual since it is the complete version, not the half manual you find free for download all over the web. Good job.
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Thank you very much you are helping me a lot with my preferred hobby!!! this manual of an old TV is going to be very helpful!!!!
You are very honest competent great job very clear and well done!!!!
Matteo
NO.21 FLOW CHART NO.22
Playback Although picture played back, color does not appear (E-E mode is possible).
NO FM signal (approx. 0.4 Vp-p) between pins(79) and Is voltage 5V applied to chroma Check the periphery pin(61) of YES
input to the pin(78) (78) IC201. power terminal pin(61) of IC201? IC201 and YC 5V line.
Is luminance signal (approx. 0.4 NO Check between the pin(60) and Is chroma signal (approx. 403 Vp-p) input to the pin(79) IC201? mVp-p/Burst) input into the pin(46) of IC201. (Check C512.)
NO pin(46) of IC201? YES YES Is V-H.SW.P. applied to Check whether the pin(71) and pin(73)
pin(81) IC201? of IC201 oscillate (3.58 MHz)?
NO
V-H.SW.P. line. Check between the pin(58) and pin(35)
NO
Is chroma signal (approx. 508 of IC201. (Check R505, C515.) mVp-p/Burst) input into the
pin(58) of IC201? YES
NO YES YES 286 Is chroma signal (approx. 508 NO NO Vp-p) input to the IC201? pin(19) of IC201. (Check C206.)
Is luminance signal (approx. 0.25 Check the periphery of pins(13), Vp-p) input output to the pins(13), (14) and (16) of IC201. (Check (14) and (16) of IC201, respectively? C203, R201-2, L201, C205, R203.)
YES input into mVp-p/Burst) output to the
Is luminance signal (approx. 0.5 Check between the pin(18) and
pin(35) pin(54) of IC201?
NO NO pin(54) of IC201. (Check C514.) Is luminance signal (approx. 0.5 Check between the pin(21) and
47
NO Is luminance signal (approx. 0.5 Check between the pin(39) and
YES Check between the pin(55) and
Vp-p) input to the IC201? pin(42) of IC201. (Check C208.)
YES Replace IC201.
Vp-p) input to the IC201? pin(26) of IC201. (Check C212.)
YES
Is luminance signal (approx. 0.5 Vp-p) input to the pin(39) of IC201?
NO
Is voltage 5V applied to the CCD section power terminal pin(36) of IC201?
YES
control voltage approx. 5V applied normally to pin(37) from the pin(57) of IC201? Is CCD clock signal (approx. 7.16 MHz/0.5 Vp-p) applied to pin(44) from the pin(69) of IC201?
NO Vp-p) input to the pin(23) of IC201?
Is luminance signal (approx. 0.5 Check between the pins(24) and (23) of IC201. (Check C210.)
YES
VC-A412U/A413U VC-H812U/H813U
Replace IC201.
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