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Very quality copy of original service manual, which contains the circuit diagrams, PCB and lists of components, well as recommendation for calibration procedures of device, also everything else, that need for repair, tuning and use this oscilloscope.
All presented copies have high-resolution, so you can view all in detail.
This manual will very useful for simple owners and for repairers.
I recommend these manual, because myself is owner of Philips PM3216 and I need sometimes servicing these oscilloscope (principally calibrating).
Also, these document is an example of excellent design of technical documentation.
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Excellent printing quality.
A complete and very usefull service manual with all details.
GREAT SERVICE AT VERY LOW PRICE!
A+++++++++++++++++++++++++
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manual excelente completo , diagramas y esquemas bien presentados y buena calidad de imagen.
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muy buen manual completo de buena calidad de impresion preciso y detallado , muy útil para la reparación.
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The service manual is a good quality scan of the Panasonic NV-850, which is electrically identical to the Philips VR 6920, but mecanically just nearly.
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 6.3 V220 µ L OUT Data SI Word clock 2.2 K LRCK CLK 2700 PF WCKO Bit clock BCKI SO DSP LSI2 HG51B277FB-1 Data SI Word clock WCKI Bit clock BCK LRCK SO SCK1 CPU LSI1 GT-913F
DAC IC1 UPD6379GR R OUT
FILTER BLOCK
Since the sound signals from the DAC are stepped waveforms, the filter block is added to smooth the waveforms.
AVDD 1 K 25C1740SS-TP-T 10 K Q308 Q310 AVDD 10 V22 µ AG 5600 PF 25C1740SS-TP-T
1K
1K
1K
22 µF
From DAC
To main volume
0.015 µF
AG
� 10 �
6.3 V100 µ AG
AG
AG
AG
AG
10 3.9 K
 $4.99 WK1200 CASIO
Owner's Manual Complete owner's manual in digital format. The manual will be available for download as PDF file aft…  $4.99 WK-1200 CASIO
User Guide It's a complete guide ( also known as operating manual or owner's manual), and it's in PDF format. A…
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