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If TV switch ON B+ is 139v but it will off after few sec. then font LED Blinks 3X

Panasonic TX-43P400H Projection tv

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I found problem why this tv was cutting off after few seconds the switch is on. I replaced the vertical IC LA-7845N now the tv is working well

Posted on Oct 08, 2008

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Posted on Jan 02, 2017

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Panasonic TX-L42E5B blinks 3 times which board is faulty


When an abnormality has occurred to the unit, the protection circuits operate and set the unit to stand by mode. At this
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Fault maybe on the A board 3.3V SOS give me your email & i send you the full timing chart.

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Panasonic tx-48cx400b TV turns off when I connect my Ps4 through hdmi cable. Can anyone help?


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What are the error codes for a Panasonic PT-47WX 42 TV


Hi,
3 times LED blinks in Panasonic PT-47WX42 shows problem with convergence out chips failure as this tv has two big black ICs STK392-110 as convergence output, replace them to fix tv problem.
Click Part Store to see an image of required chip and price info.
Local tv tech is recommended if you have no experience of working in tv circuit boards.
Thanks.


Apr 18, 2010 | Panasonic PT-47WX53 47" Rear Projection...

1 Answer

Panasonic projuction screen tv.


3 blinks is the error code for the convergence ICs. You need to replace both STK392-110 convergence ICs. You can get replacement ICs at the following link and they provide installation instructions with pictures.
http://servicemanuals.vstore.ca/

Oct 12, 2008 | Panasonic PT-47WX42 47" Rear Projection...

1 Answer

My Panansonic TV shuts down every few minutes and the LED blinks three times


I still have that problem. I calle Mfr and also spoke to repair shops recommended by them and they said they estimate a cost of 300-400$ or so approx. I am waiting to buy a new LCD which could be few 100 more but at least dont have to live with the old one and keep spending money...

regards

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Have a Panasonic Projection TV PT-47wx51c. It is currently shutting it self off, then the red light in the front blinks and can not be turned back on until it is un-plugged. Just befor it shuts itself...


can you determine if the led blinks a certain amount of times then a slight pause before blinking again? Let me know as it may be blinking a diagnostic code.

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1 Answer

Panasonic pt-52lxc66 power light blinks


There are actually two red leds present on your tv and depending on which one is flashing is going to tell you what to replace. 3X on the Temp led will point to a faulty thermistor and you would want to replace this part. If the 3 red blinks are the lamp light than this is a error on the iris position and you would need to have the optical block replaced.

Josh

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2 Answers

Power comes on then goes back off.


More than likely, the two convergence IC's have to be replaced.

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