Build Your Own Arcade Controls Forum

Main => Monitor/Video Forum => Topic started by: cw on May 17, 2007, 02:51:53 pm

Title: wg4600 no control over brightness....
Post by: cw on May 17, 2007, 02:51:53 pm

subject line says it all...
 

 
 pulled and check the pot on the neck pcb
 checked r 419 and r 418

Title: Re: wg4600 no control over brightness....
Post by: Ken Layton on May 18, 2007, 12:22:30 am

The SCREEN pot on the neckboard rarely goes bad. It's the pot on the video interface board ("Black Level Control") that goes bad all the time.

Title: Re: wg4600 no control over brightness....
Post by: cw on May 18, 2007, 03:18:21 pm

pot was replaced with the cap kit...

Title: Re: wg4600 no control over brightness....
Post by: Ken Layton on May 18, 2007, 07:27:09 pm

And you adjusted the black level control?

Did you resolder all the bad solder joints on the monitor main board and the daughter boards?

Did you swap the video interface board with one from another 4600 series monitor to isolate the problem to that board?

Title: Re: wg4600 no control over brightness....
Post by: cw on May 18, 2007, 09:25:34 pm

yes


yes


yes


thanks for the help ken.... this one is driving me nuts