TV clicks when turned ON and in a few seconds clicks again and blinks red 4 times. I see no light from the panel.
I downloaded the service manual and tried the step of checking R90c7 on the main Board and the voltage is above 0.898 V which indicates LED Driver or G Board. I replaced the G6 Board just in case but same thing happens. Maybe is another G Board?
I measured the BL_ON and shows 3.3V before going to zero when red light comes.
I tried to ground the BL_ERR and LED_ERR signals but no change.
I cannot find the LED driver board 15ST084A-A01...
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Sony XBR-75X940C 4 RED Blinks No blacklight
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Re: New Members - please post your introductions here
Hello from Souther California,
Joining with the hope I can get some help with a TV that died on me 4 years after spending over 6000 USD on it
I used to repair TVs back in the day of the black and white TVs and still using the soldering iron quite a bit even though I moved on to software since the early days.
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