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Thought I would never find a copy of the Technics SX-EN2 Service Manual until I found Owner-Manuals.com. Price was very fair and I received the download promptly. While a photocopy, it is quite readable and includes all the pertinent information and diagrams. Thank you Owner-Manuals!
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I really like this manual and it's reliable.I found and bought easly.thank you.
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Thank you very much. the Instruction corresponds to my expectations. Sent it in time. I don't regret that paid money.
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Good quality. Quick service. I recommend to everyone.
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Very good quality scan of the document. I am very pleased with what I got.
DAC (IC1: 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 LSI6 UPD6379GR R OUT CLK SI Word clock LRCK WCKO Bit clock BCKI Data SO DSP LSI1 HG51B277FB Data SI Word clock WCKI Bit clock BCK LRCK SO SCK1 CPU LSI4 GT913F
FILTER BLOCK
Since the sound signals from the DAC are stepped waveforms, the filter block is added to smooth the waveforms.
AVCC
2.7 K
To main volume 15 V10 µ
8 � 6 5 +
C472(H)
L
7 4
2
10 K
10 K
10 K 10 µF
R154
Left From DAC
AG M5218APR (1/2) � 2 IC104 � + 2 3
C221B(A)
AG AVCC C472(H)
AG 2.2 K
15 V10 µ
R
1
2
10 K
10 K
C152(H)
10 K
100 K
To main volume
AG
10 µF
Right From DAC
AG
AG
�8�
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