Question about LG Televison & Video
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Posted on Jan 02, 2017
SOURCE: pc no start.........
You might have a bad power supply. If you have a voltmeter, check the voltage of the standby power supply. This voltage is present even if the system is off, plugged in. It powers a small portion of the logic circuit. It should measure within a couple of tenths of exactly +5 volts. If it is low, or high, this will prevent turn-on. The purple wire of the 24 pin connector is what carries this to the motherboard. The color coding layout is found at http://pinouts.ru/Power/atx_v2_pinout.shtml If by chance this voltage is OK, then check the full on voltages also. Repair of the defective supply is probably by replacement of one or more small electrolytic capacitors in the appropriate circuit, especially if you are technically savvy. Capacitors are available through several suppliers; Digi-Key supplyies Panasonic FC series which are suitable for switching power supplies. Or, you may just replace the whole unit.
Posted on Apr 25, 2007
SOURCE: replace lamp led light
Have you reset the lamp timer?
Was the lamp module sitted properly?
Remove the back panel and vacuum all the dust.
Also use compressed air to blow out the dust from the inside.
Do not blow into the fan on the right as that will get the dust inside the lamp housing.
Posted on Mar 08, 2010
check the supply at horizontal driver trans former ,if voltage is correct at ho/driver trasistor ...then check allthe fusible resistances from power supply,,,if tv is taking h/oscillation for awhile ,,give more screen control in lot,,, & see for a horizontal line ,,,before tv becomes off,,, if so vertical ic problem...
Posted on Mar 16, 2010
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