Panasonic TC-51P300G TV the boot image sound normal, 10 seconds to -30 minutes suddenly shut down, indicating lights flashing fault repair method |
| Time£º2014-06-18 08:36:21 Source£ºNetwork Author£ºUnknown Clicks£º1228 |
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nGRservice manual download site
nGRservice manual download site
D. disconnect D869 after boot, at the same time monitoring Q849 C voltage (flow circuit starts its voltage will jump from zero), found that 10 minutes over-current protection, then observe the internal circuit and no abnormal phenomenon, observation screen only to find that in a minute: screen grating constant movement in or around a similar wave of bad lu fluctuations of normal (middle), and on the right side of the screen to flash across the vertical stripe interference (edge with wiredrawing phenomenon) one of the characteristics of a high voltage spark, but that does not distinction is a projection tube bad or line output variable is bad hence the separation method: took turns off R.G.B projection tube as put plate and the corresponding high pressure observation screen that grating fault is still at the same time, to the basic can be concluded that the projection tube is normal, the fault line output transformer itself. Hence decided to order (KFT7AA334F1), after the arrival of the replacement machine as normal. nGRservice manual download site
nGRservice manual download site
In actual maintenance, in the difference between a number of different fault caused the same failure phenomenon, a theory must be combined with the actual fault phenomenon (), through the mechanism of the failure, sort out a feasible method of maintenance, to shorten the maintenance period in order to avoid detours.nGRservice manual download site
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