CurtPalme.com Home Theater Forum

djrunamuk · Joined: 02 Jun 2013 Posts: 7

Hi i have a barco 808 and when i fire up the projecter the picture is taking longer than usual to appear and then when it does appear i only get half the picture initially but after time the picture will start to appear coming from right to left i have attached some pics

I replaced the voltage quadrupler about 3 years ago which i got from curtepalme

**Curt Palme** · Posted: Thu Jan 18, 2018 11:32 pm Post subject:

Check the 17 volt supply test point on the power supply, and adjust as required. I think it may be off. The main website shows how to do it.

if that's not it, then check your blanking settings in the geometry menu. Worst case, your vertical board may be bad, as that's where the blanking is located.

djrunamuk · Joined: 02 Jun 2013 Posts: 7

Hi yep no worries i will check those thankyou

djrunamuk · Joined: 02 Jun 2013 Posts: 7

Hi have checked the 17v test point and found itwas 25.8v i adjusted trim pot and the best i can get is 20v

djrunamuk · Joined: 02 Jun 2013 Posts: 7

Also the green led on the power supply board is pulsing and now i cant get any picture

km987654 · Posted: Fri Jan 19, 2018 5:38 am Post subject:

djrunamuk · Joined: 02 Jun 2013 Posts: 7

Ok i removed the smps and found about 6 bad solder joints i resoldered and installed now i have got the picture back but only when the 17v test point is reading about 23v any thing under and i loose the pic but i still have original fault with picture not full

djrunamuk · Joined: 02 Jun 2013 Posts: 7

I have checked the blanking for the left side and and was able to adjust to get a bit more picture but i am out of adjustment
I will see how it goes

**Curt Palme** · Posted: Fri Jan 19, 2018 3:19 pm Post subject:

I am wondering if your meter is reading correctly. At 23 volts, things should start to blow up, and not work perfectly..