Hi Group, can someone help please,.? I put the LVDS wiring harness on wrong in the main board #T. RSC8.10B 12305.. B12083477,. and smoked Q7, I know it's a transistor, can someone tell me a part number or suggest a replacement???
ng in the main board #T. RSC8.10B 12305.. B12083477,. and smoked Q7, I know it's a transistor, can someone tell me a part number or suggest a replacem ent???
I'm sure you're aware there are no schematics anywhere on those mains.
There's a high probability that that transistor is the 12V switch used to p ower up the TCON on command. Remove what's left of the transistor, and see if either the collector or emitter of that transistor rings out at zero ohm s to the paralleled red wires of the LVDS harness. There are typically 4,
6, or 8 wires grouped at one end of the harness that provides the 12V. If that group connects to that transistor, it's probably just a switch.If so, plug in the TV with the transistor removed and take some voltage re adings. If you see 12V appear at the E or C when you power up, take a read ing on the base. Your base reading will determine whether to use an npn or pnp.
Alternatively, you can just jump out the E and C and call it a day. Those m ains were used in low end toilets like Elements, Sceptres, Insignias, etc. If your lucky, nothing else beside the switch will have been damaged.
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