Looking for advice on the repairing of a hitachi commercial plasma monitor cmd 4201 currently cycling off after power up.Shot gun repair effort so far ,just replacing suspect board x and y substain s. Power supply board .I have repaired it several times before luckily. Want to do a more complete evaluation of my problem. The power supply I assume is cycling because of I believe that the Y substain is bad. Can I test the power supply board to rule out,problems on it. Should the power supply supply vs va for the substain boards with them unplugged,. Will I get the voltages before it cycles off or not. I have a trouble shooting flow chart that suggests a sequence of tests for narrowing down the problem,. So is anybody familiar with these monitors,it does not have a tuner. Thanks joe
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Pioneer Pro-FHD1 Elite. Failure to power on.
I'm new to this awesome forum, and have been reading like mad, but have not seen the answer to my challenge.
We bought this Panasonic plasma monitor 16 years ago and it has never been serviced, so all parts are original, and the unit has never malfunctioned -- until about a month ago. The system fails to power on. At first (a month ago) this happened rarely. We learned to unplug for a few minutes to drain the caps, then re-plug, and the monitor would start normally. Now, we plug-in, turn on the main power switch, and the... -
Good evening, gentlemen.
I have a problem with my monitor. It turns off after a few seconds or flickers. Shining a flashlight on the screen doesn't show any image, so I guess it's not the "2 seconds to dark" I read in the forum.
To turn it back on, I have to press the power button twice. Then after a few seconds it turns off again or flickers. See video.
https://drive.google.com/file/d/1L6S...ew?usp=sharing
Things I tried
- Bought a new AC adapter thinking that was the problem but the problem... -
Looking through my repair pictures and notes, it's been a long time since I posted anything in the LCD monitors section. So here goes that.
I'm dedicating this thread to one of the very first LCD monitors I repaired (if not the first one), which was more than 10 years ago now. The monitor is a Wise Wing, model F199. It's a 19” CFL-backlit LCD. I got it for free off of Craigslist in 2009 from a guy, who said he bought it for cheap from Wallmart and the monitor worked only for a little less than 2 years before quitting.
When I saw the Craigslist post, I wasn't... -
My pc:
10850K stock 4800mhz stock Kraken X73 good temps
2x16 GB DDR4 GSKILL 3000mhz XMP
Seasonic Tx-850 Ultra Titanium
Gigabyte Rtx 3090 Gaming OC
Aorus Z490 Pro Gaming
1 TB SSD
4 weeks ago i launched Metro Exodus Enhanced and during cinematic advertisement part ( 30 fps ), pc just shutdown.
Also monitor flickered with NO SIGNAL 10 seconds after shutdown. So only monitor and pc was affected.
Next i pressed only power button, rebooted again and its fine again. Happened once and i cant reproduce.
Power... -
Hi all
Does someone has the test points \ schematics for lg eax65543115 ( 22" version, lg led monitor)
Or any ideas how to troubleshoot it?
The screen turns on for like 10 seconds, then goes off ( kinda protection triggered, as it goes off like you've been pressing the power button)
, but the cpu gets hot quickly within those 10 seconds , AND STAYS HOT EVEN WHEN IT'S OFF
I'm suspecting it gets over voltage \ current and triggers some OV \ OC PROTECTION but hopefully it's not too late ( that the chip is broken)
NOTE that it's a trashpicked monitor...