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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.
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The service manual is a good quality scan of the Blaupunkt RTV-404, which is electrically and mecanically identical to the Panasonic NV-830.
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completo manual bien detallado y de buena calidad de impresion , se echa en falta los esquemas de placa y parte de algun diagrama.
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perfecto manual ,completo y detallado de muy buena calidad de impresion, ideal en una palabra.
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un manual completo con una calidad de imagen buena con explicaciones en varios idiomas de los ajustes y detalles en conjunto un OK.
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[4] DIGITAL ASSY
Flowchart of Failure Analysis for The DIGITAL Assy
Failure analysis for the DIGITAL Assy => DG1
A
The on-screen display (OSD) is not properly indicated.
� If the OSD is not properly displayed although the panel mask is properly displayed, a failure exists in the path from the output of IC2801 on the MAIN Assy to IC3301 on the DIGITAL Assy. -> If only the OSD is abnormal, the MAIN Assy is in failure.
Disconnect and reconnect the 50P (J212) FFC/40P (J211) FFC. NG Replace the 50P (J212) FFC/ 40P (J211) FFC. NG Is an appropriate signal input? (Check the V frequency with the QSI command.) No Is the sync signal properly output from the MAIN Assy? No
� It is most likely that the video signal and sync signal data are abnormal.
B
Yes
� If no vertical sync signal is input to the DIGITAL Assy, a freeze-frame picture will be displayed.
No
Replace the DIGITAL Assy. NG OK
C
Replace the MAIN Assy.
Failure in connectors CN3201 or CN3202 on the DIGITAL Assy. Failure in ASIC (IC3301) on the DIGITAL Assy.
D
E
F
PDP-5020FD
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