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Excellent manual, detailed, very useful! Exactly what I needed, I'd recommend it to all who need it. Although images are scanned easily readable and explicit. A valuable tool product at a price more than modest, take it with confidence and you will not regret it!
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Clear and complete service manual. Easy now to restore my old Kenwood KD-1500.
Thanks a lot.
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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.
Pin No. 50 58 60 61 62, 66, 70, 74, 78 63, 67, 71, 75, 79 64, 65, 68, 69, 72, 73, 76, 77
Terminal VSS3 EA13 EWEB EA14 VSS2 VDD2 PA0 ~ PA7
In/Out In Out Out Out In In Out Ground (0 V) source
Function Not used Write enable signal output for the effect RAM Not used Ground source +5 V source LED segment signal output
DAC (IC102: UPD6379GR)
The DAC receives 16-bit serial data output from the DSP. The data contains digital sound data of the melody, chord, bass, and percussion for the right and left channels. The DAC converts the data into analog waveforms and output them to each channel separately.
Synch signal SINC L OUT DAC IC102 UPD6379GR R OUT SI Word clock LRCK WCKO Bit clock CLK Data SO DSP LSI101 HG51B227FB Data 1K SI Word clock WCKI LRCK Bit clock BCKI 47K 22K BCK SO SCK1 CPU LSI105 UPD912GF-3BA
FILTER BLOCK
Since the sound signals from the DAC are stepped waveforms, the filter block is added to smooth the waveforms.
AVDD AVDD 2SC1740SQ 2SC1740SQ 1K 1K 1K 50V0.22µ
C332(H)
From the DAC
To main volume
10V22µ 470 C333(H) AG AG AG
AG
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