SOURCE: TV PROBLEM
After replacing the shorted Line driver Transistor, carefully removing and replacing the same CRT base circuit, resulted with the problem going away. I cannot say what really was the cause, but I suspect that there could have been some form of acing on the neck of the tube.
SOURCE: No Power on Sony TV
Be sure to use an ORIGINAL Sony transistor and be sure to resolder the pins of the small horizontal driver transformer and all parts connected to and around it, and your set should be fine.
SOURCE: Sony 2167 No power on
check video processor output diagram and signal amplitude if u can find video processor raplace it and try it must work
SOURCE: Sony 2167 No power on
I have not worked on your particular model. But, I have serviced many TV sets over the years. My answer will ge generic.
Check all the capacitors in the horizontal output stage and power supply areas for high ESR. All the caps that are out of spec must be changed.
The high voltage multiplier & flyback can also cause the fault you are having.
You have to consider that the DC voltages are not the only important spec that has to be met. There are also many power drive signals that work with reactive devices. If there is any defect in the critical areas there will be failures.
Jerry G.
http://www.fixya.com/support/r5826301-working_switch_mode_power_supplies
Once the power supply is restored the voltage feed to the processor and sub sections must be checked, for failure of any regulator or fusible resistors
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