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Message body Emoticons View more Emoticons	Font colour: Default Dark Red Red Orange Brown Yellow Green Olive Cyan Blue Dark Blue Indigo Violet White Black  Font size: Tiny Small Normal Large Huge Close Tags [quote="Rob Moffatt"]KV34XBR800 DA-4 Chassis. Set displays a four blink error code. Checking the following components netted the following voltages from around the Horiz Output Xformer, T5001. Q5003 (PWM-OUT) IRFI9630G-LF G= +130V S= +133V D= +72V IC5004 (vert output) STV9379 Pin1= +0.6V Pin2= +15.8V Pin3= -9V Pin4= -9.7V Pin5= -8.4V Pin6= +15V Pin7= +0.6V IC5005 (Horiz Cent) LA6500-FA Pin1= +72V Pin2= +72V Pin3= +73V Pin4= +75V Pin5= +105V there is a raster in the lower half of the screen when G2 is advanced which appears to be folded over and rolling, the raster is also narrow as if a lack of B+. Swapping out IC5004 (vert output) made no change. Any idea why "d" voltage on Q5003 is 72volts instead of 10 as the service lit suggests??? Any help is greatly appreciated as I believe these boards are now NLA as an assembly. Rob[/quote]
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