I recently bought a Vizio LCD 47" TV(model #xvt473sv) off Craigslist.
When the seller demo'ed it it was fine. But after getting home, the screen was very bright with images showing up faintly. After about 10-15mins warmup everything was good. When I shut off for 30 mins and restarted it, the vizio logo turned orange and it cycled between orange, white. The tv never turned on, so I unplugged and replugged it. This time it was fine and started up ok.
I have since got used to the warm up period but yesterday the unit didn't turn on. A local repair guy looked at it and said it was the main board. He replaced the main board but the issue was the same. He then concluded that it could be the tcon or the LCD itself. He didn't have a tcon to test it.
When I tested it again today the TV seemed fine after warm up period.
I opened the back cover and started looking at the components. Looks like most are from LG. here is the list:
1. Inverter board: 0500-0712-0020
2. Power board: 0500-0512-0810
3. Main board:
4. Tcon board: 0171-2372-0024
All the caps ate visibly ok. I will post pictures in my next message.
I am a total newbie and would like to get some pointers on how to troubleshoot and fix it. Please help!
When the seller demo'ed it it was fine. But after getting home, the screen was very bright with images showing up faintly. After about 10-15mins warmup everything was good. When I shut off for 30 mins and restarted it, the vizio logo turned orange and it cycled between orange, white. The tv never turned on, so I unplugged and replugged it. This time it was fine and started up ok.
I have since got used to the warm up period but yesterday the unit didn't turn on. A local repair guy looked at it and said it was the main board. He replaced the main board but the issue was the same. He then concluded that it could be the tcon or the LCD itself. He didn't have a tcon to test it.
When I tested it again today the TV seemed fine after warm up period.
I opened the back cover and started looking at the components. Looks like most are from LG. here is the list:
1. Inverter board: 0500-0712-0020
2. Power board: 0500-0512-0810
3. Main board:
4. Tcon board: 0171-2372-0024
All the caps ate visibly ok. I will post pictures in my next message.
I am a total newbie and would like to get some pointers on how to troubleshoot and fix it. Please help!
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