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barco retro 808s conv overvoltage

 
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jaredjaric



Joined: 05 Jun 2007
Posts: 228
Location: Philippines

Posted: Sun Apr 27, 2008 4:10 pm    Post subject: barco retro 808s conv overvoltage
Please help,what should i look for if the lone green led(conv overvoltage) on g2 diagnostic board is lit?

I have blown the 100 mf cap on this board earlier.
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Ile



Joined: 09 Mar 2006
Posts: 1491
Location: Jyväskylä, Finland

Posted: Mon Apr 28, 2008 9:54 am    Post subject:
All G2 board green leds should be on when projector is working.

If that lone led is bright and that another +conv led is off, it have over voltage.
Over voltage in +17V line could probably cause conv over voltage.
http://www.curtpalme.com/Barco808_Layout5.shtm
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jaredjaric



Joined: 05 Jun 2007
Posts: 228
Location: Philippines

Posted: Mon Apr 28, 2008 10:46 am    Post subject: green led all lit
Thanks ,all green leds are lit,so there is no overvoltages in the conv.i will just wait for the new rgb driver board to see if the video comes out.
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jaredjaric



Joined: 05 Jun 2007
Posts: 228
Location: Philippines

Posted: Tue Jun 03, 2008 4:46 am    Post subject: retro graphics 808s no video 2nd post PROBLEM FIXED
culprit found,me.Bent pins on the bottom of g2 diag. board caused no video and g2 spot kill.Must have been caused from seating and reseating the saidboard.
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Ile



Joined: 09 Mar 2006
Posts: 1491
Location: Jyväskylä, Finland

Posted: Tue Jun 03, 2008 6:39 am    Post subject:
Good to hear you found problem. Thumbs Up
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