Question about Sony PFM-42B1 42 in. HD-Ready Plasma Television

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My sony FLASHES 4 times

My sony has a horizontal line in the middle then it flashes the red light 4 times. How can i fix this and what board should i be looking at

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Re: my sony FLASHES 4 times


Posted on Feb 22, 2008

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Re: my sony FLASHES 4 times

STBY LED flashes

2 times pcb X SUS TEMP (DD CON

3 times pcb Y SUS TEMP (I/O Block)

4 times Center TEMP

5 times Digital 5 volts

6 times PANEL FAIL (PDP)

try unplugging it for a while, from other forums looks like they sent them back to sony for repair

Posted on Dec 10, 2007

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SOURCE: my sony FLASHES 4 times

hi I was chating with you for support..It appears we had a 'server error' ..Please replay as I would like to continue suport for you problem

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TV quits working, screen goes black and red light next to power green light flashes 4 quick flashes . After a second or two of no flashing,red light repeats "code" flash. We pull the power plug at the TV,...

The Sony diagnostic routine for 4 blinks indicates it to be a vertical deflection problem.

Did you see a solid horizontal line in the center of the screen prior to it going out? If so, that is a tell tale sign for vertical problems.

basic sony reset below

The STANDBY light will flash if the television detects an issue within the television. Some of these issues can be resolved simply by following the steps below to reset the television.

  1. Turn off the television. IMPORTANT: For a projection television that uses an internal lamp, wait 5 minutes after turning off the television to allow the lamp to cool before continuing with the following steps.
  2. Unplug the television power cord from the electrical outlet.
  3. Let the television remain without power for 60 seconds.
  4. Plug the power cord back into the electrical outlet. NOTE: If the television is plugged into a power strip or surge protector, remove it from the power strip or surge protector and plug it directly into the wall outlet. If the issue is resolved, the problem is with the power strip or surge protector and not the television.
  5. Turn on the television.

If the issue is still unresolved after following all of the troubleshooting steps, service may be required. Please note the number of times the STANDBY light flashes and relay that information to the service center

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Five times blinks to Sony Bravia is related with an IRK error. It is related to its main digital board. In most cases, the main board might need replacement. It will be best to contact the authorized service center for Sony. If you're sound in electronics, check the site linked here. Pull up previous posts there, either by type in the model name to your set in its search box, or view it in Mosaic /Timeslide option.

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Four blinks - No vertical Deflection (V STOP), Screen goes to a single horizontal line then the video signal muted. Check IC1509, Q1505

For more details type in this site name "Electro-help" (DO NOT copy and paste the site name from here. Doing so may lead you to wrong place) to search box of your search engine [not in the address bar of your browser], and press "Enter".

It is an electronic equipments service help site.

Note the position of hyphen in between words in site name. The site will appear as it is in web; subtitled as Service help to electronic home entertainment equipments.

Pull up older posts.

You can locate this site, either at the bottom part of first search page, or at the top of second.

Detailed descriptions are there to help you.

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Turns off after 2 or 3 seconds then red light flashes 4 times

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Ur power supply board is dead, u know basic electronics’ and soldering? Most of the times, the power supply board just have dead leakages gases capacitors.These capacitors always bulges up on it top,or puff up on it top.Replaced these gases leakages capacitors will get your tv power stable,and work again.Or tries websites like, to buy a whole refurbish power supply board for the replacement. Hope this will help...

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Replace GT board to fix the problem.
Let me know if you need GT board part number info.

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My sony FLASHES 4 times

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