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TV Set goes on to red standby and shuts off over and over again

I have SONY KV34HS420 , the set is out of warranty , the standby red light goes on and it shuts down the set ....Any help or ideas ? I have tried all the basic steps such as unplugging the TV and allowing time for a "default reset" , I have looked at timers on the TV set as well as the cable box with no conflicting issues there. I called the tech from the retail outlet where I purchased the set and he used the remote control of the TV set to get a diagnostic window . After looking at the screen I was told that it would probably cost in the range of $ 400 to fix it. Before I am forced to spend money on a new TV set , I would appreciate any feedback from "experienced" people .If anyone can tell me how to bring up that diagnostic box up again , I might be able to determine the parts needed and maybe I can find a more cost effective resolution to my problem , and in the process I might learn enough to be able to help people with similar problems in the future...Thanking all of you that might be of help to me , let me wish you all a great day !!!!!!

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  • Televison & ... Master
  • 74,106 Answers

If you wish to get some details; visit the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ Search the site by type in the "brand name" of your device, in the "Search box at the top right of the Homepage" to get gathered related posts.

Posted on Mar 06, 2017

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6ya6ya
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SOURCE: WD-52525 Shuts off, shows red lamp light even after replacing lamp

Turn on the set and let it shut down. push in the Menu and Device (or input, I don't have a schematic in front of me) buttons on the front of the set at the same time and hold until the green light starts flashing. Then release. There will be two different sets of flashes, such as, 3 and 6. The code 12 means the set is opperating fine. The other codes will tell you what part of the set needs repaired. Also, remove the bulb and check the ballast connection to the bulb. I find the connection for the bulb bent over when a customer replaces the lamp sometimes. Let me know what you find and we can go from there.

Posted on Feb 18, 2007

SOURCE: Red lines on Sony KP51HW40 Rear projection TV

This should be a very simple fix. The lines on your screen are call retrace lines. Basically you need to open the TV and the job is about 15 minutes to solve the issue with arched lines, either blue, greed, or red. There is a great how-to guide here: http://www.somelifeblog.com/2007/06/sony-projection-tv-red-line-repair.html

Posted on Jul 02, 2007

  • 1153 Answers

SOURCE: mitsubishi wd-62327 red light

1. Self-diagnosis error 4-4, check for open F9A06 part # 283P128050 on the Power PCB. 2. Self-diagnosis error 4-4, check for proper seating of the DVI cable between the FMT PCB and the DMD (Light Engine). It may be necessary to disconnect and reconnect this cable to insure proper connection. 3. Self-diagnosis error 4-4, if F9A06 is good and the connection on the DVI cable between the FMT PCB and DMD are secure, suspect the Light Engine part # 939P977020 4. Self-diagnosis error 4-4, check F9A07 part # 283P128050 on the Power PCB, if open suspect the Light Engine part # 939P977020 5. Self-diagnosis error 4-1, suspect the Power PCB part # 930B929001

Posted on Sep 10, 2007

ctf1800
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SOURCE: Sony KDS55A2000 Red Blinking Light Issue

first off
For the KDS55A2000, 9 blinks, pause, 9 blinks means "Device error" and the probable cause locations listed are as follows:

1. Temperature sensors
2. Bus decoder ICs (IC2000, 3150, 3200, 8804)

These are starting points for qualified service technicians. There is a service bulletin for this issue, but it is intended for use by qualified service technicians.
I found that it refers to a problem in the "zero crossing detector" circuit on the "G" board. I resourced the part from an electronics warehouse and found out that the "G" board has a known weakness and high failure rate The part cost me $73+$47 fedex shipping
The "G" board may be the only "plug n' play" board in the whole set

Posted on Feb 12, 2008

redhead7377
  • 51 Answers

SOURCE: SONY KP-46C65 PROJECTION TV

we have repaired 100s of these tv..most have a flicker issuse and it is getting hard to find replacement tubes. the cost sounds right...I suggest to invest in a new tv.

Posted on Sep 09, 2008

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