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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.
5-2 Initial
Initial Failure
Downloading SW is OK ? (Is CSROM signal OK ?)
No
After power on, check and repair the important signals of U108 as follows
Yes
The node between R162 and C183 = "H" (RST)
No
Check the circuit related to reset
Yes No
R114 = "H" (BOOT) Resolder R114
Yes
Check all the other connection by Test S/W R150 = "H" (GPIO4)
No
Resolder R150
Yes
Check the circuit around LCD
No
R165 = "L" (GPIO2) Resolder R165
Check the circuit around U107(EEPROM) and data stored in it Replace PBA
END
5-3
Flow Chart of Troubleshooting
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