Re: Sanyo FW65D25T has backlight but no picture

I replaced the main board tonight with one that I ordered from Ebay (supposedly fully tested from a repair shop) and still get backlight no picture - same thing it's always done. I did notice the standby light blinks 9 times now instead of 8 when turning it on. Does anyone know what the blink codes on a Sanyo mean?

I still had the replacement T-con board that I bought and swapped that in but didn't make a difference.

The only board I haven't replaced yet is the FRC board. I can't find one for sale right...

Re: Sanyo FW65D25T has backlight but no picture

I went ahead and purchased a T-con board. However, the new T-con made no difference - still have backlights but no display.

Answering one of the questions above, I do not have any inputs connected during testing - just trying to get an OSD at this point. Should I have something connected to the inputs instead of trying to see an OSD?

I just ordered a main board from Ebay so will try that next.

Re: Sanyo FW65D25T has backlight but no picture

Anyone have any ideas?

Re: Sanyo FW65D25T has backlight but no picture

1. I disconnected both T-con ribbon cables and it acted the same as when both are connected. Backlights come on but no picture.

(Left Side / Right Side below are all from the front of the TV as if you were viewing it)

2. I disconnected the right side T-con ribbon cable and turned the TV on. The right half of the screen was completely white and the left half of the screen was black.

3. I plugged the right side back in and disconnected the left side cable and turned it on. The left half of the screen...

Re: Sanyo FW65D25T has backlight but no picture

Thanks for the clarification on where to measure voltage at. Looks like I have power to the T-con board and the fuse is good.

Here's what I've got:
12V in and out of the fuse FP1

Taking measurements at some of the other test points that I saw:
V1N12: 12V
V33V: 3.3V
C_VIN: 12V
VDDAM_R: 9.1V
VDDAM: 9.1V
V12A: 1.2V
V25V: 2.5V

Let me know if you want measurements from any that I missed.

Re: Sanyo FW65D25T has backlight but no picture

Thanks for the replies.

I'm going to need some help figuring out out to test if the T-con board is getting voltage. I don't see anything marked on the board for test points or voltage specs. I did get some voltages on the pins of the cables connected to the board so I am getting "some" voltage but have no idea if it is correct or not. I don't have an oscilloscope so that is not an option for testing. I'll include a picture of the whole TV to show board layout and a close-up of each board....

I've got a Sanyo FW65D25T and need some help fixing it.

I plug the TV in and the red standby light comes on. I then press the power button on the remote and the standby light blinks red 8 times. On the 5th blink, the backlights come on but I don't see any picture or menu on the screen.

I thought the power supply might have been bad so I replaced it and it didn't make a difference. Can anyone please guide me on what to check/test/replace next? Thinking it is either the tcon board or the main board. Tcon boards are cheap ($27), main boards are not ($295). Would replacing...

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Hello