Re: [WD] Model: LTV-30w2 - Orange light, 5 secs after powerup

From those voltage readings, can we deduce which of the three
boards is the problem?

Carl

Re: [WD] Model: LTV-30w2 - Orange light, 5 secs after powerup

Are the voltages ok?
I do get a momentary white flash on the screen on power up - then
the indicator LED changes from Blue to Orange.
Capacitors look OK. Any ideas???

Thanks

Carl

Re: [WD] Model: LTV-30w2 - Orange light, 5 secs after powerup

Which of these IC number identifications identify the component?

Thanks

Carl

Re: [WD] Model: LTV-30w2 - Orange light, 5 secs after powerup

Thanks. I am in the USA. Mains is 117vac 60hz

Pins like this:
____
|.....|
|___|
| | |
12 3

Measured in vdc using my digital multimeter:

IC254: K478 QR9 317
0v
3.28v
4.92v

IC255: 1084-33CE 946G7
0v
3.28v
4.92v

IC256: 1084-188E 643G8
0v
1.8v
4.91v

IC257: AK25P 050GC
0v
2.5v
5.0v

IC252: L033 C440
0v
3.3v
5.0v...

Re: [WD] Model: LTV-30w2 - Orange light, 5 secs after powerup

I have the same TV with the same symptoms -- press power on, get Blue light, screen
flashes 1 second and then goes dark, and then the power light turns orange
No sound, no video.

I looked over all the boards including the Inverter board under the metal panel and
all the Electrolytic capacitors look good - no bulges, no leaks.

I did measure the voltages on the output of the Power Supply board and I get
3V on the 5V, and 8V on the 12V. I do get 24V at 24V

...