Question about Sony FD Trinitron WEGA KV-36XBR800 36" TV
Need to check power supply regulation and horizontal circuits, how do i go about this
There are many details involved to check the set. The process is beyond the practicality of an email.
You will need the service manual, a DVM, and depending on the circumstances you will need a scope.
The service manual may still be available from Sony.
Most of the time in these models of set, this type of fault is a failure in the scan amplifier sections; mainly in the horizontal output section. If this is the case, there may also be some damage in the power supply.
Posted on Jan 09, 2009
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Unit is dead, No blinks
- Problem in the standby power section. Might check fuse, R607,
Q601, IC601, R612 and VDR601 (should show open).
Continuous blink once a
second, no pausing - No reply from the jungle IC301 (data
bus is busy, shorted to ground, or held high), IK video path is
One blink - not
used for the self-diagnosis
blinks - B+ over current protection (OCP), unit goes to the
standby mode then displays the 2 blink fault. Could be a short in
supply of any of the circuits.
Three blinks - B+
over voltage protection (OVP), unit goes to the standby mode then
displays the 3 blink fault. This is also a problem in the power
supply circuit, check T603 and R672.
Four blinks - No
vertical Deflection (V STOP), Screen goes to a single horizontal
line then the video signal muted. Check IC1509, Q1505
Five blinks - AKB
circuit (automatic kine bias), the timer/standby indicator blinks
for about 30 seconds then goes to the self-diagnosis function.
Something is wrong with the video. Check video out, Q705, 732, 761
and other components on the C board, also check Q218, 219, 220 on
the A board. In addition, unit could be in IK blanking, try turning
up screen slightly.
Six blinks - No
Horizontal (H STOP), no raster, goes to the blinking self-diagnosis
function immediately. Check C515 & 516 and the jungle IC, IC206.
Jan 23, 2011 | Sony FD Trinitron WEGA KV-27HS420 27" TV
Dec 27, 2010 | Sony FD Trinitron WEGA KV-34HS510 34" TV
Jan 23, 2010 | Sony FD Trinitron WEGA KV-36XBR800 36" TV
Dec 08, 2009 | Sony Standard (CRT) Televisions
May 07, 2009 | Sony FD Trinitron WEGA KV-36XBR800 36" TV
Jan 16, 2009 | Sony FD Trinitron WEGA KV-36HS420 36" TV
Jun 22, 2014 | Sony FD Trinitron WEGA KV-36XBR800 36" TV
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