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
IC5004 (vert output) STV9379
IC5005 (Horiz Cent) LA6500-FA
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.