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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.
Troubleshooting
6-3-3 Screen
Problem The screen is black and there is no sound. Solution â� Check if the power cord is properly connected. â� Turn on the power. â� Select an AV channel that corresponds to the external device.
â� Adjust the screen brightness. Only the screen is blank/it is dark â� If the screen is too dark, check to see if Power Saving Mode is set to "Super Power or too bright. Saving". Although Super Power Saving Mode consumes less power than Standard Mode, Super Power Saving Mode may have the screen dark. The screen is blue/the external channel is not displayed. The screen overlaps (double/triple). The screen is snowy or unclear. The picture quality gets worse when it is windy Dotted or semi-dotted lines are displayed on the screen. The screen is black and white. The colors of the screen are odd/strange. Unusual lines appear on the screen. Unusual lines appear on the screen when watching or â� Check if the connector is properly installed. â� Select an AV channel that corresponds to the external device. â� Check if the antenna is properly installed. â� Adjust the position, angle or direction of the antenna. â� Check if the antenna has been bent or moved by the wind. â� Check the antenna for its lifetime. (Normally 3 - 5 years, 1-2 years near the coast) Install the antenna as far away from the road as possible. â� Adjust the color density. â� Check if the connector is properly installed. Adjust the color tones. Keep the antenna away from the power cord or connectors if possible. Keep the video player as far away from the TV as possible.
There is no picture on the screen A video signal is only output through the Monitor OUT port when the current input mode is TV when I have connected to another (analog broadcast), External In or S-VIDEO. device through the Monitor OUT Check that the current mode is one of the above. port. Black or red spots appear on the screen. A PDP TV uses a PDP panel consisting of 123million (SD Grade) ~ 315million (HD Grade) pixels. Although a PDP panel is a product that requires high technologies to integrate a few million pixels, a bright or dark pixel may exist on the panel, this does not affect the performance of the product. â� Displaying a still picture on the screen may permanently damage the PDP panel. â� A boundary may appear due to the difference in the transparency of the panel when watching the picture in the 4:3 aspect ratio for a long time and the picture in the left, right and center screens is a still image. â� A boundary may appear when watching a still picture from a DVD player or a video game console on the screen for a long time. Due to the nature of PDP TVs, partial after-images may appear if a still picture is displayed for a certain period of time after connecting a video game console or a computer. This is caused by brightness deterioration due to the storage effect of the panel, and to prevent this from happening, we recommend you reduce 'brightness' and 'contrast'.
A boundary appears on the screen.
An after-image remains on the screen.
6-6
Samsung Electronics
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