HannSpree HSG1064 Turns on, video for 5 seconds and then nothing

[jazzie366]

So I have a HannSpree HSG1064 monitor/tv. Pretty nice 100$ tv that was working great until a few days ago. It was manufactured in 2009, so I thought maybe shit caps? Looked online and it seemed like a probably cause. However, I opened it up and they seem to have ditched the shit caps and used Taicon, which is definitely a cut above the rest if we're talking most shit caps.

So none of the caps were bad, all were fine.

No heat damage from the circuit board by what I could see on the PSU, in fact the PSU seemed to be one of the best I've seen in a cheap TV.

Since the PSU seemed fine as it would turn on and the audio would continue to work, the video would just stop, I'm not sure where to look? I took off the mainboard and it was capped with "GJT" branded caps. All seemed to be fine.

What should I look at next?

[dskall]

Re: HannSpree HSG1064 Turns on, video for 5 seconds and then nothing

Do you see image on screen with flashlight

[jazzie366]

Re: HannSpree HSG1064 Turns on, video for 5 seconds and then nothing

Do you see image on screen with flashlight

Used a 900 lumen flashlight just to be sure, no image.
It also wakes up and falls asleep as normal as well.

[dskall]

Re: HannSpree HSG1064 Turns on, video for 5 seconds and then nothing

Are backlights staying on?

[jazzie366]

Re: HannSpree HSG1064 Turns on, video for 5 seconds and then nothing

Are backlights staying on?

Nope, backlight goes out as well.

[dskall]

Re: HannSpree HSG1064 Turns on, video for 5 seconds and then nothing

Need voltages from connector that goes from power supply board to main board. Will need pin#- PIN DESCRIPTION -Pin voltage in standby-Pin voltage when pushing power button and picture of connector on power supply board.
Format:
Pin# - Pin Description - Pin Voltage standby - Pin voltage power on
1 - XXXXXXX - XXv - XXXv
2 - XXXXXXX - XXXv - XXXv
3 - XXXXXXX - XXXv - XXXv
4 - etc.