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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.
Adjustment items Focus adjustment The method mentioned left is applied to the focus adjustment on the G lens adjustment of 43PH, 42W.The details of G lens adjustment for 50PH,61PH, 50W, and 57W are described in the previous page.
Adjusting methods 4) Adjust the G lens focus. (Applicable only to 43PH, 42W) Watch the horizon of the left and right both ends of the screen (the range of circle with 100mm diameter shown in the following sketch), make optimum adjustments on the G lens focus, and check that the focus balance on the right and left is satisfactory. (Balance check of left-and-right G lens focus) (1) Adjust the G lens focus best by crosshatch of the left end (or the right end). (2) Check the focus of the right end (or the left end). If the balance of the left and right lens focus (flare) is different, part it and adjust to the medium quality. Check the environment and confirm that the focus quality (including flare) is within a tolerable range.
Point to be noted during G lens focus adjustment (To be adjusted within circles of 100mm diameter contacting the left and right of the bezel)
Concerning items 1), 2), 3), and 5) of G adjustment, these are common to the ones on the previous page. 3. R adjustment 1) Set to the R monochrome by lens cap. 2) Receive the image of Retma pattern. 3) Adjust the R electrical focus. Adjust by focus volume of the focus block (Z410) so that the screen center will come to optimum focus. 4) Adjust the R lens focus. Adjust so that the screen center will become the best. 5) Repeat 3, 4, and attempt to further improve the focus quality.
� 17 �
SPECIFIC INFORMATIONS GENERAL ADJUSTMENTS
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