The tv is a jvc model,it suddenly switches off when in use but brought out a plain raster afterward.
After battling with it for quite sometime without good result i decide to take some voltage readings.200v supply to tube base from flyback transformer was around 57v which is wrong and an indication of fault along that line,so i need to trace the fault from that line to detect what the fault is.
from the picture above diode D553 and the fuse resistor R554 tested good , the capacitor C557 is of the value 250v2.2uf but reads 0.57uf when measured by my esr meter.I replace it 250v10uf and the fault was cleared completely and the tv brought back to life again.
After battling with it for quite sometime without good result i decide to take some voltage readings.200v supply to tube base from flyback transformer was around 57v which is wrong and an indication of fault along that line,so i need to trace the fault from that line to detect what the fault is.
from the picture above diode D553 and the fuse resistor R554 tested good , the capacitor C557 is of the value 250v2.2uf but reads 0.57uf when measured by my esr meter.I replace it 250v10uf and the fault was cleared completely and the tv brought back to life again.
2 comments
Sir white line show kar rha hai aur colour less ho rha hai
सफेद पर्दा आ रहा है और आवज आ रही है
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