Question about Akai PT4298HD Rear Projection Television
Open back of TV, there will be two STK's (black boxes) unplug the harness connector from the power supply into the stk board and turn on. If you get some light to the screen, you know now to replace the two STK's and then replug the power supply to the convergence board. If that does not work, the power supply may also be bad.
Posted on Feb 23, 2008
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Posted on Jan 02, 2017
Tips for a great answer:
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 A2 slightly.
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