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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.
Item RGB MODE HORIZONTAL SHIFT adjustment
Measuring instrument Signal generator Remote control unit
Test point
Adjustment part RGBH
Description (1) Input R/G/B circle pattern signal via video input terminal. (2) Press [AV] key on the remote control unit, force the TV to RGB mode. (3) Enter the SERVICE MENU. (4) Select RGBH with the [ / ] key. (5) Adjust RGBH with the [ / ] key until the circle pattern is horizontally centered.(A=B) (6) Check and readjust RGBH item if the adjustment becomes improper after some other geometric adjustments are done.
A
B
VERTICAL SIZE Signal OFFSET generator adjustment (60Hz) Remote control unit
Very close
VSOF
(1) Receive a NTSC-M cross-hatch pattern of vertical frequency 60Hz. (2) Enter SERVICE MENU. (3) Select VSOF with the [ / ] key. (4) Adjust VSOF with the [ / ] key until the horizontal black lines on both the upper and lower part of the pattern become very close to the opper anr lower horizontal sides of picture size and nearly about to disappear. (5) Check and readjust VSOF item if the adjustment bocomes improper after some other geometric adjustments are done.
Screen size
Picture size 100%
Very close
VERTICAL POSITION OFFSET adjustment (60Hz)
Signal generator Remote control unit
VPOF
C
(1) Receive a NTSC-M circle pattern of vertical frequency 60Hz. (2) Enter the SERVICE MENU. (3) Select VPOF with the [ / ] key. (4) Adjust VPOF with the [ / ] key until the picture is vertically centered.(C=D) (5) Check and readjust vertical position item if the adjustment becomes improper after some other geometric adjustments are done.
D
(No.52134)1-17
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