Question about Standard (CRT) Televisions
During watching the TV, sound of TV goes off, after some time sound is recover it self for a short time. but when blowing the fan air on surface of TV then sound goes OK.
What to do
Posted on Dec 29, 2013
1 it might be due to spraker wire loose or its connector loose. 2 loose contact in sound section. 3 some cap faulty. 4 sound ic might be grtting more supply so ic is getting over heated. 5 sound ic might be defective.
Posted on Oct 06, 2007
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Oct 19, 2013 | Standard (CRT) Televisions
Jun 14, 2012 | Thomson Standard (CRT) Televisions
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.
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