Panasonic TC-29GF10R color TV after three, according to station selection key is invalid, but the panel on the standby indicator HENGFA red fault repair method |
| Time£º2014-06-30 08:33:06 Source£ºNetwork Author£ºUnknown Clicks£º1264 |
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mLxservice manual download site
mLxservice manual download site
summary Because Q857 beam junction leakage short circuit, make the boot after the microprocessor IC1213 {} 33 feet is about 5.0 V output high level via Q857 beam output "in two way: a path R859 to C856 charging, the charging voltage is higher, which in turn make D859, Q856 conduction, one after another to clamp the relay drive pipe Q852 base potential, forcing relay RL801 constant in the reset open circuit state; Another path R865 and R1103 IC1213 6 feet at a high potential, internal protection circuit is 6 foot control so that the microprocessor IC1213 {} 33 feet standby control output low level in order to maintain the whole machine constant in to protect the state, to produce this case fault phenomenon.mLxservice manual download site
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