uVision AS1770 monitor fault.

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From: Alan Liefting
Date: Thu, 18 Apr 2002 21:11

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Replace line o/p transistor and series fuse (used 1 ohm resistor).  Now
have a picture but from after about 3 seconds after turnon get a noise
bar travelling up the screen and the whole picture will flash on and off
at about a 1 second period.

Managed to substitute the micro and EEPROM into another good monitor. 
They worked fine.  The micro is putting out a video mute signal at a
guess.  5 volts is good at the micro.  The incoming sync is at the right
level.  

Any ideas?

Alan Liefting

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From: Alan Liefting <aliefting@ihug.co.nz>
Newsgroups: sci.electronics.repair,aus.electronics
Subject: uVision AS1770 monitor fault.
Date: Fri, 19 Apr 2002 09:11:07 +1200
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