Hi so I recapped a m1296 and everything went well and it worked well for days. I took the bezel off to retrobrite it. I put it back on. Now when I power the unit, you can hear the screen energize for about 5 seconds then there’s a click and the screen powers down. The board stays powered. Power is normal at the 24v tp, unit starts up with all the voltages correct then when the screen powers down the 80 goes to ~14, the 12 goes to ~1.4 and the 100 goes up to about 112. Is this a bad voltage regulator or something?
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There is an X-Ray protection circuit that shuts down the power supply in case the EHT is too high. Do you have a high voltage probe?
I don't but if I did, how would I proceed?
Read the schematics very carefully!
http://www.repairfaq.org/sam/monfaq.htm#monhvshutd
http://www.repairfaq.org/sam/monfaq.htm#monasmdavlt
Is this a Sony display?
Mitsubishi
Ok that doc actually helped the h hold got turned up way to high somehow and it was triggering the hv shutdown. Thanks!