New Life Games LLC

Monitor Repair Log and Database. **Arcade and Gaming** => LCD and CRT Monitor Repair Tech Support => Topic started by: Nepa Coin Op on April 04, 2018, 10:56:35 PM

Title: 1492 brightness
Post by: Nepa Coin Op on April 04, 2018, 10:56:35 PM

getting closer with mon but one last issue.... appears to have a prob with either the auto bright or what appears to be too much green or blue, i went over the auto bright circuit, changed green and blue amps and rgb Ic and other components as well as caps in the area..... i must be missing something....... anyone have an idea where to look ???


Thanks

Title: Re: 1492 brightness
Post by: Paul on April 05, 2018, 12:26:36 PM

Did you check the brightness setting on the High Voltage transformer?

Title: Re: 1492 brightness
Post by: Nepa Coin Op on April 05, 2018, 05:22:51 PM

These are auto controlled with the bright pot sealed ..... I went over the auto bright circuit a few times already I must be missing something

Title: Re: 1492 brightness
Post by: Amechanic on April 05, 2018, 07:55:16 PM

Lower adjuster on the flyback will help with the white lines and the top adjuster is the focus.

Title: Re: 1492 brightness
Post by: cowboygames on April 05, 2018, 09:25:32 PM

Even auto brightness machines generally have these controls
Righty brighty, lefty.... darky

Title: Re: 1492 brightness
Post by: Nepa Coin Op on April 05, 2018, 09:30:05 PM

Quote from: cowboygames on April 05, 2018, 09:25:32 PM

Even auto brightness machines generally have these controls
Righty brighty, lefty.... darky

I have a few of these 1492s here none of them have movable pots for brightness it's frozen in place

Title: Re: 1492 brightness
Post by: cowboygames on April 05, 2018, 10:38:41 PM

On or next to the flyback tansformer?

Title: Re: 1492 brightness
Post by: Nepa Coin Op on April 05, 2018, 11:17:11 PM

The screen pot on it