P2317H not turning on

[questore]

Re: P2317H not turning on

It could be flashing for many reasons, no input signal, no backlights etc.
>Goto #6

I have to wait for a few days before i get the working power supply. In the meantime i was thinking. What if i test our theory by doing the following.
Connect the two boards and also connect my lab power supply to 5v line where its low and let it draw the power from there when its plugged?
I think it could provide a solution for our theory does it not?

[questore]

Re: P2317H not turning on

After hooking up the powersupply to the 5v with the main boards connected and plugged in, the voltage is still waving and goes up only to about 2.9v, maybe the two small electrolit capacitors on the mainboard are bad and cannot hold charge? Ordered an ESR meter for that (will be good for other things as well)
Let you know when power supply board changed and what ESR meter sees.

[questore]

Re: P2317H not turning on

Got a new powerboard and it powers up fine, BUT...
The picture on the panel is scrambled
Plugged back and original panel picture and it fine with my board, so my LCD panel is bad also.
Removed the panel back tape and LCD panel number is:
M230F07V01_HF REV 0.0
- Checked that board and no short to ground
- No bad diode found
- Fuse is ok
Anyone can help diagnosing if it can be repaired?

2 IC THAT IS on the board is sm4142 and lfm60a3
reading after powered on:
VON: 27,9V
VSS1: 8,4 V
VSS2: 9,8 V
TVDD18: 1.8V
TVDD12: 1.2V
DVDD: 1,8 V
AVDD: 10,42
VCC: 5.08V
D2P1 0,58 V
D2N1 0,58 V
HCT3 4,17 V
VCST_S3 4,06 V
CN3R_1 0,020mV
CN3R_2 0,020V
SCL: 5V
RVC 4,6v
CVC 1.03V
R1 0.262
RDV1 10V
RDV2 4V
CREF 4V

[questore]

Re: P2317H not turning on

After ESR meter is arriving I think i will try with this to solve the problem:
https://www.youtube.com/watch?v=4HFHpzSQfj0