Question about Televison & Video
This set does not have a reset button. The flashing light means shutdown and the most common cause is a short in the Convergence circuit.
Way to prove or disprove this is someone has to get at and unsolder both chips used--usually two stk-392-110 or similar--18 pins each.
If set comes on then one chip is bad but both must be replaced.
There are resistors around the chips that fail and that triggers the shutdown. Also most of these have pico fuses that are not glass and are tied to different areas of the set--one of them goes and shutdown is the result--they are green or orange and look like a resistor but have the amperage marked on the board next to them---two of them protect the convergence circuit and are usually 3 to 5 amp---can be tested with set unpowered just like any fuse--no reading across and bad.
set may have as many as 7 of these all in or near the power supply.
Posted on Nov 06, 2012
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Posted on Jan 02, 2017
SOURCE: kds55a2000 red light flashing
The SONY Owner's Manual for the KDS55A2000 does not state what the 4 times blinking Power LED means.
However, my Sony Extended Care Service support insists that the projection lamp is the cause for the 4X blinking LED
I do not agree but am forced to buy a replacement lamp (not cheap) to prove that the problem is probably the fan, as the TV Technician states elsewhere in these FixYa support questions and answer
Posted on Nov 29, 2007
This sounds like the typical toshiba power regulator ic fault. it begins with an str##### Its not something a handyman should try to tackle. It should be repaired by a quilified repair person Sorry Good Luck
Posted on May 22, 2006
Solved by resoldering some solder joints!!!!!!!
Toshiba Model 57H81 Rear Projection TV - Purchased 11-09-2001
Problem: Toshiba 57H81 Flashing Red Power Light, No Picture/Sound, Blown Fuses F850 + F852
Symptoms January, 2009:
Total Cost to Repair about $10
Posted on Jan 05, 2009
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