Question about Panasonic PT-51HX41 51" Rear Projection Television

2 Answers

Powers on for 5 seconds then shuts off

As the title says. Where the cord comes in from the outlet it then goes to a fuse, if you follow the white line on the circuit board it goes to a little transformer, right after that is a little black box type connection (I'm not sure if it's a relay or a breaker but it looks like it can come out by pushing in the tabs, and there's a second one down the board a ways). Anyway, as I push the power button this black box clicks like it's turning on. After about 5 seconds (with nothing else coming on) it clicks again then everything is dead. Could this be the reason the TV won't work? Is this something I can replace from a part at Radio Shack?? Any help with this would be great!. :)

Thanks

Jeremy
jlnelson73@gmail.com

Posted by on

  • 2 more comments 
  • Anonymous Feb 20, 2008

    Have the same exact problem, I'm wondering if what you mentioned will have to soldered in or not? I havn't looked at it yet, but this is def. what is happening with mine.

  • bassthrive Feb 28, 2008

    Same problem here.  Is there a definite fix?  Does someone have step by step instructions or diagrams for the replacement of the broken components?

  • bouchard_24 Mar 02, 2008

    I had the same problem and now the TV will not even power on. I had a TV Tech come by the house and he said he had to pull out one of the circuit boards and replace a fuse on the board behind it. Approximately $500.00 for the repair. Is my problem the same as Jeremy's? If not what might it be? In either case I am a Signal Network Tech in the Army and could replace the parts myself, I am just usure of what to order and where to order them from. Any guidance is greatly appreciated. Thanks.



    Michael

  • codyecp Mar 02, 2008

    I have the same problem and tried replacing the Convergence amps, STK yada yada.. NO CHANGE, just a big waste of 3 hours. If anyone else another solution I am all ears, I stll have all the parts diconnected so any help be would be much appreciated!

×

2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Bill, I tried replaceing the STK392-110's and still having the 3 flashes and no responce from the TV, although I hear relays clicking. Is there a posibility that it's the R800 Relay or do you sussecpt something else? Thanks in advance.

Posted on Apr 01, 2010

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 934 Answers

Jeremy,
Those are your primary and secondary relays and they are probably not your problem!! In RARE cases R800 will fail causing RI802 to fail (your secondary relay) but I emphasize in RARE cases. The reason they click and then click again is that the shutdown circuit commonly requires them due to some short in a circuit up-line from the B+ and usually I would first suspect the convergence amps.
Your set takes two STK392-110 Sanyo original Ic's and if you have these replaced I think that will solve your problem.. They're located at Ic7001 and Ic7002 on the signal board, screw mounted to a large aluminum heat sink. On replacing them also check all 2.2 ohm 1w feed resistors out front of them and replace any that may have changed in value...
Bill

Posted on Feb 03, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

We just got a panasonic pt52lcx15 tv from a neighbor the tv works fine turns on has sound etc for about five minuets then powers down and the red lamp indicator flashes for about 1 time every 5 seconds


Try disconnecting all of your HDMI cables and plugging the power cord of the TV into another wall outlet. If this resolves the issue, you may have had a small power surge from either your wall outlet or one of your source devices. It is recommended to connect your TV to a surge protector if you haven't done so already.

Sep 20, 2013 | Projection Televisions

1 Answer

Power coming in to television, but when I push the power button to turn the tv on; it does not come on.


You may have what I call the hard to turn on issue, look again in the power supply inside the set--follow power cord that goes to it and look for puffy filter caps:


12_17_2012_9_36_35_pm.jpg12_17_2012_9_37_00_pm.jpg

Dec 17, 2012 | Projection Televisions

1 Answer

Power on fault


A common issue---if set has been unplugged plug it in and when the green light comes on and goes out----on the front of the set press and hold both the menu and input (DEVICE ON SOME MODELS) buttons for at least 5 seconds and release both buttons.

Power light will blink a two digit error code like 2 blinks, 2 blinks a pause and repeat the code for a total of 5 times.

Let me know what the error code is and I will tell you what it means.

SD TECH
5_22_2012_4_28_08_am.jpg

May 21, 2012 | Mitsubishi WS-55511 55" Rear Projection...

3 Answers

Sony kp-46wt520 rear projection tv: standby light flashes


Two things here.

1) This is a CRT based set so there is no "lamp" involved.
2) The standby light should be blinking a repeated count of blinks with a 2 second pause between counts. Please report the exact count here. This will indicate the circiut in which a problem was detected.

With the above information, we can provide you with a more detailed description of the problem as well as the likely solutions and cost.

Thanks,
Dan

Sep 17, 2009 | Sony KP-44PX3 44" Rear Projection...

2 Answers

Intermittent lamp turn off


I was told by the repair service to unplug the power cord for about 5min. This resets the internal computer. I think this helps but does not cure the cause. Good luck.

May 22, 2008 | Sony Grand WEGA KDF-60XS955 60" Rear...

2 Answers

SONY GRAND WEGA


I have a KDF60XS955. When I power it on, the fan comes on, the standby light flashes green several times, the lamp comes on and the standby light goes to solid green. This lasts for less than 5 seconds then the lamp goes out, followed by ~30 green standby flashes, the lamp coming on with the solid green standby light for about 5 seconds then shuts off the lamp again. I can hear/feel the fan running the enitre time. This cycle continues endlessly. Please help!

May 20, 2008 | Sony Grand WEGA KDF-60XS955 60" Rear...

3 Answers

Sony KP-61HS10 blinking codes


FIVE Blinks---AKB circuit (AKB), the timer/standby indicator blinks for about
30 seconds then goes to the self-diagnosis function. Something is wrong with
the video. Check video out, Q705, 732, 761 and other components on the C
board, also check Q218, 219, 220 on the A board. Also unit be in IK blanking,
try turning up screen slightly.
You can get the service manual and free support at the following site to help yu with the repair of your sony the manual is 10.99 support is free here is the link. They will email the manual to you.
http://servicemanuals.vstore.ca/

Feb 14, 2008 | Sony KP-61HS10 61" Rear Projection...

1 Answer

Hitachi 50DX10B Power issue


Rollo, broken solder connections either in low voltage or sweep section of the board, probably in the horizontal out put area but could be anywhere. If you want to attempt the fix the board has to come out and you`ll need a bright light as well as a good magnifying glass to find the broken joints and then re-solder them, Be certain your tv`s AC cord is removed from the wall outlet before doing any soldering, good luck, BMW Rider

Dec 13, 2007 | Hitachi 50DX20B 50" Rear Projection...

2 Answers

Troubleshoot-5 blinks red light front of TV


TURN TIMER OFF. GO TO SONY.COM, TROUBLESHOOTING, OR The STANDBY light is flashing on the television and there is no picture or sound. Solution
sp.gif sp.gif The STANDBY light will flash if an issue is detected within the television. This can sometimes be resolved by simply 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.

May 17, 2007 | Sony KP-51HW40 51" Rear Projection...

Not finding what you are looking for?
Panasonic PT-51HX41 51" Rear Projection Television Logo

114 people viewed this question

Ask a Question

Usually answered in minutes!

Top Panasonic Projection Televisions Experts

Jaime Hernandez

Level 3 Expert

2267 Answers

Josh Whitehead
Josh Whitehead

Level 3 Expert

1146 Answers

The Knight
The Knight

Level 3 Expert

68229 Answers

Are you a Panasonic Projection Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...