When powering on, sometimes the picture and sound come on fine. at other times upon powering on i get the red blinking light (3 times). after 1 to 8 attempts to power on , it finally works.

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When powering on, sometimes the picture and sound come on fine. at other times upon powering on i get the red blinking light (3 times). after 1 to 8 attempts to power on , it finally works.

hangingin200 Sep 07, 2010

The model no. is KDSR60XBR1 . I suspect the problem has something to do with the microchip in the lamp door. However, i thought it might be some type of voltage problem based on Sonys' diagnostic stating that three blinks of red light might indicate this. Thank you
hangingin200 Sep 07, 2010

Thanks. Last question. I can take the back panel off the TV but was wondering how difficult it is to replace microswitch. If it is a low degree of difficulty (unplug old/plug in new). If it is more difficult than that, then I will decide to try to do it or call a technician. What's your thought or opinion? Again, thank you very much. Regards, Bill

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Shahid Electronics

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Hi,
I need model number of your Sony tv to diagnose possible cause of problem. Model number would be written at back of tv.
Thanks.

Posted on Sep 07, 2010

1 more comment
Shahid Electronics Sep 07, 2010

OK, Sony KDSR60XBR1 tv
3 times blink is an error code that shows problem with lamp cover micro switch that is not being pressed by lamp cover correctly. It is safety switch that tells system control chip that lamp cover is in its position securely and tight.
Check lamp cover that might not be fixed properly, put that lamp cover in its place properly to solve tv issue and if lamp cover seems OK then check/ replace micro switch.
Let me know if you have additional question.
Thanks.
Shahid Electronics Sep 07, 2010

I think lamp door switch replacement is not so difficult job for handy person.
Below is exploded view that shows T1 Board location that has safety switch on it, replace that little board if switch is broken.
T1 Board part number is as follows:

A1123096A....... T1 BOARD, COMPLETE
Available in PartStore.com
Hope these info will help you.
Thanks.
Shahid Electronics Sep 16, 2010

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When powering on, sometimes the picture and sound come on fine. at other times upon powering on i get the red blinking light (3 times). after 1 to 8 attempts to power on , it finally works.

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