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Main => Monitor/Video Forum => Topic started by: mailman-zero on January 03, 2015, 03:57:12 pm

Title: Electrohome G07-FBO 13-inch All White
Post by: mailman-zero on January 03, 2015, 03:57:12 pm

I sent this monitor out to be repaired and it came back working great for about a day. The first day everything was working great, but the following day I powered on my Centipede cocktail and got just a white screen. I thought it might be the centipede board not sending the signal correctly, so I swapped out the board with a known good centipede board and it's still doing the same thing.

I can adjust the screen setting, but I don't think that's what's wrong. I am willing to investigate the issue, but I don't know where to start. I've replaced caps and flybacks, etc. so I can do that level of investigation. See the video below for what happens when I adjust the screen setting. Thanks!

Electrohome G07-FBO 13-inch All White (https://www.youtube.com/watch?v=QgwT8p2xt7g)

Title: Re: Electrohome G07-FBO 13-inch All White
Post by: grantspain on January 04, 2015, 06:47:22 am

have you verified the power supply voltages?
when i first saw the vid of the issue i thought it may be a blanking problem,possibly 200v video b+ missing but as you can adjust screen volts i do no think it is that

only other thing could be beam limiter fault,which i believe is x303-and check x304

i imagine the heater is running?

Title: Re: Electrohome G07-FBO 13-inch All White
Post by: mgb on January 04, 2015, 10:33:12 am

From a quick look at a flow chart, the only reference to bright white on that is the beam limiter transistor x303