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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.
TROUBLE SHOOTING TABLE (Continued)
LED LIGHT NO NORMAL SOUND
comes No sound from the
Check F4701. F3700. out at AV-out J905 speaker
Normal Blown out
Set volume to maximum. Is there any sound output signal at pin 10 & 14 of IC 301 ?
Check sound output signal from No Yes pin 92 & 93 of IC 2100 and its if there Check related circuit. is sound input connection to
Replace the Fuse.
No signal at pin 2 the speaker Yes
Is the Fuse again blown out? & 21 of IC 301.
No
Check output main unit ? consisting of IC701, IC702,
Does STBY+5V appear at pin 1 P1001 Check the power circuit T701 and its related parts. signal at pin
68, 69 of IC 2100 and its
19
19-1 19-2
No Yes
the power Check 3V output related circuit. circuit at the front from pin 22 of IC unit consisting of 2100 and its IC4702, IC4701, related parts. D4707 and its related parts.
29H-FD5RU
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