Re: LG 47v5500 No Picture No Sound No power to TCON
Thanks for the reply Budm,
No backlights.
Voltages are ~12,~12,~12 ... ~3.5,~3.5 ... ~24, ~3.5 to the main board when power is on.
No voltage across the TCON fuse with power on, which is intact (no resistance).
Umm, should mention that I didn't check the power to the LEDs, and am not exactly sure how to do that (I'm assuming LED+ on either side to the LED strings..). I'll try to check it tomorrow or the next day.
Would lack of LED power cause the main board to not...
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LG 47v5500 No Picture No Sound No power to TCON
Power board:
Main Board:
Layout:
Checked the voltages from the power board to the main board. All good.
Even with a new main board, there is still no voltage to the TCON board (no voltage across the fuse, which is intact).
Any ideas as to what the problem is?
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Re: LG 47LV5500 - No picture, no back light, no sound, powers on.
Thanks.
Probably not going to do it yet, but it would be nice to upgrade firmware in older, still usable TVs, or even get into making cool main board upgrades for common TV models. That would be awesome.
I'm wondering about LED life now.
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Re: LG 47LV5500 - No picture, no back light, no sound, powers on.
I have the exact same problem- LG 47LV5500 no picture/sound/back light.
Checked the voltages running over to the main board, look good.
No voltage to the T-CON board, so I think it's on the main board. It's ordered.
What I'm wondering is if it's possible, I mean... relatively easy to replace the main board with a more modern board? Probably should ask in a new thread...
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