Philips plasma repair advice thread

Great thread very useful stuff. I have a similar problem with my 42pf7520D/10
I think it is the fm33 but not sure how you find this out.
i want to try replacing the caps but some on my power board look different to most of the pics. 2664 & 2663 are supposed to be the same but one on my board appears different (pic 1) it is marked 1µF K63. also voltage reg 7450 looks different.
Can any one shed any light on the differences. can i still replace 2663 with a 100µ 25v cap?
 

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Thanks forthat Jaycee.
Where can i find which Chassis type i have? can you ID it from this pic?
I have the service manual for the fm33 and it shows the two caps as the same?
Can you tellme what it is?a 1µF 63v cap? what would i ask for to get a replacement?
sorry for all the questions but you may have guessed im new to all this/
 

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you guys may be able to help me, ive got a 42pf5520d/10..... when i power it up it clicks tho it is coming on, then 5 secs later clicks off, and then its dead n unresponsive until i unplug n leave it 10mins try again and it does the same
 
I am aware of the cap problem, but there no blown caps on my power supply main board. Did anyone look at the YouTube video I linked and see the flashing red/black screen? I also have no sound....

Someone else suggested the power supply board may be the culprit. But, the repair tech said that was not the problem, and I can confirm that the caps are good (not blown)

Should I try a new (or used) power supply? They are available for $100 or so, I guess I have nothing to lose....just hoping to narrow it down further before I just start plugging and praying....

Thanks
 
They are available for $100 or so, I guess I have nothing to lose

This coming from a guy who baulked at paying $89 for a Tv repair techs time and transport and who told you it wasn't the psu :thumbsdow
 
No, no.....maybe I was unclear, or maybe you misread. I did pay the $89 for a Philips Authorized Repair tech to come to my house, I was fully intending to pay him more to identify the problem and tell me what the component was that needed replacing. I probably would have even paid him to fix the component. But, the tech could not identify the problem. He spent two hours poking and prodding around in my set, to basically tell me that he had no idea what the problem was. I mentioned the common cap problem with the power supply board, and he said "no, no, that is not it".....but I am not sure what it was.

We left with him saying that his solution was to order three or four components, and to try them all until he fixed it. $850 would be the bill for the repair. Based on the fact that he was unsure what the problem was and that I thought I could figure it out for less than $850 , or worst case buy a new TV for $850, I told him no thanks.


So- to recap- the tech charged me $89 to tell me he did not know what the problem was. He did tell me that he did not think it was the power supply. He thought it would be the small signal board/tuner input board (tried this and it is not the culprit), the digital processing/transfer board, or the PDP- plasma display board.

I guess in a nutshell, I do not wholly trust his synopsis of the power supply, and that it is not the likely culprit. From everything I read, it is the usual culprit.

Did I shed some light on the situation...don't bash me for hiring a tech to troubleshoot. I am more than willing to pay someone to tell me what the problem is. When I pay the guy to tell me he has no clue....well that is what drives me to seek out other opinions online.

Thanks
 
Hi, this is my first post. I followed advice on this thread and fixed the PSU of my plasma tv.

My PSU has two long vertical heat sinks and can be identified on photos of earlier posts, don't think quoting model number or serial number are necessary since they all seem to be very similar and have almost identical problems with the same hardware.

My problem was, tv would power up for a short time and then power down again, red led would then flash 1 slow followed by 2 quick. Had to turn off at wall to turn on again. Eventually the TV would power on for a very short time only. Applying a hair dryer to the lower rear vent would allow the tv to power up for longer but who wants to do that every night?

Steps to fixing:

1 - check all electrolytic capacitors for signs of damage (normally the top would be pushed upwards since they are designed to fail in this manner to release any pressure build up), replace if necessary;
2 - if none then apply hair dryer to locate area where caps are faulty,I found it was in the area of capacitor 2540;
3 - replace surface mounted caps in the affected area and try after each fitment.

note:there is no sign of damage on the surface mount capacitors.

To fix mine I first replaced 2387 but no joy.
then I replaced 2540 since this has been suggested in earlier threads, but no joy.
then tried 2533 and 2397 but no joy
then 2508 (also mentioned in an earlier thread) and 2541 - worked beautifully after that.

For materials went to Maplins and bought 8 100uF 50V 105 degree radial electrolytic caps, cost around £1.50 in total. They didn't have the 25V in stock. You'll laugh at how small their quantities of capacitor stocks are so you may need to order the caps in.

removing the surface mounted caps is easy, they are labelled 6e 100 16V, I found levering them up slightly with a watch screw driver did the trick and then pulled them gently away from the board. I snapped the legs off the board and then placed a small blob of solder on each board joint. cut the legs of the new caps to the same length then bent the tips of the legs by 90 degrees. warmed the solder and offered the leg tips into the solder hold in place and remove heat. Remember to put the -ve leg to the solder joint with the white square next to it.

There may be some trial and error until you get the right capacitor but don't give up. If the hair dryer doesn't get the tv to power up then you probably have a diffrerent problem.

I hope this helps future fixes.:)
 
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RLWY....could I ask you what drove you to think that the PSU was faulty? Did you my chance have a TV screen like I linked in the video in my post above? With no sound?

I am happy to try all of the caps you mentioned. That would probably be smarter than going for the new Power Supply all together. However, there are no visibly bulged caps.

Did you have caps that were visibly damaged? Or did you just keep replacing them all until your TV worked again?

thanks very much

Nathan
 
Big thanks to rlwys his post sort of clarified things and i have now got my TV working. I had already replaced the caps 2663 2664 and 2665 but that didnt help, then tried the hairdryer trick to heat various areas of the board as suggested by rlwys and found that mine also responded to being warmed around the area of2540. Had a trip to maplins and got myself 4 100mf 50v 105*c radial caps (all they had). swapped out 2540 2541 and 2508 and WOOOO it works. None of these caps looked bad and fixing these surface mounted caps was a bit fiddly. Mine look none too neat but who cares. for around 45p i have saved my £900 plasma. thanks and good luck to all with this problem.
 
RLWY....could I ask you what drove you to think that the PSU was faulty? Did you my chance have a TV screen like I linked in the video in my post above? With no sound?

I am happy to try all of the caps you mentioned. That would probably be smarter than going for the new Power Supply all together. However, there are no visibly bulged caps.

Did you have caps that were visibly damaged? Or did you just keep replacing them all until your TV worked again?

thanks very much

Nathan

Nathan,

The reason I believed it was the power supply was because the symptoms matched those of other people on this forum i.e. the tv would power up for a short while and then power down. The red led would then flash. Mine flashed 1 slow 2 quick repeated. other people have had 7 red flashes but they apper to have the PSU with the 5 or so smaller heats sinks and the problem has appeared to be failed electrolytic capacitors.

There are 4 posts on here that have the same psu board as mine which has two large vertical heat sinks and they replaced either 2540 or 2508 capacitors, this fixed the problem. when I changed 2508 mine was fixed also. Heating the area around 2540 alowed the tv to power up temporarily so I knew it was the same problem. If anyone has the same psu and same symptoms as me then I would reccomend changing 2508 and 2540 first.

With regard to your problem, if it was a PSU problem then your tv would go into standby and the red led would flash, but since your screen is still powered up it is unlikely to be the PSU. You'll have to search internet to see if others have the same problem.

Cheers

Adam
 
Hi Everyone

We own a Philips 42PF9631D/10 UK model and have been experiencing the red blinking lights problem when powering up . We are attempting to repair it ourselves but have never done or know anything about electronics etc. Newbies in other words hehe.

Unfortunately, we sent our TV off for repair 2 months ago with a plasma specialists, only to discover they were Rogue Traders. We managed to recently get our TV back but in a bad state.

We noticed this blinking light problem could be fixed here on your forum by replacing certain caps on the PSU board, so we opened the TV and examined the caps. No caps showed signs of bulging or leaking, but as shown in the pictures below, there were 2 caps that looked different to all the others (Coloured green and bent sideways) and has mess on the circuit board directly below the caps. Please see image below.

As we are not electricians, does the image of the 2 caps show that they have been leaking, or have the Rogue Traders tried to badly soldier new caps on using flux??? The mess could not be wiped away and no mess was found on the caps if that helps. The 2 caps shown are on position 2540 and 2541 and are 100uF50V 85C. Should these be 100uF25V as I found in earlier posts or is it correct for our TV?

We have no idea how to identify the correct caps to replace, to resolve the red blinking light problem, so using the picture attached, can anyone identify any more caps we need to replace?? I have tried searching through earlier posts, but all the pictures show different PSU boards making identification difficult.

If anyone requires more information from me to help resolve this problem, please ask and I will do my best to provide all you need.

Merry Christmas and a Happy New Year to everyone. (Especially to the ones who reply.) :thumbsup:

Thanks in advance.

Your PSU has been butchered and many components removed. See attached photo from post on page 19 I think:

 
Out of curiousity, where are the fans for these Plasmas? I know everone's Plasma is a slightly different model, however i'm hoping the layout's fairly the same with placement of the fans.

I'm looking at my: Philips 42FD9954/S17 and I can't seem to locate any!?! :confused:
 
I have a philips 50PF9631D/37 and recently replaced the power supply. Now I have the problem with the red and green pixels all over the screen. From my understanding, this is an issue with the voltage adjustment on the power supply. Can anyone tell me if the settings for the 42" are the same for mine, if not does anyone know the required settings?
Thank You
Hi Did you resolve your flashing pixels issue as i have a Phillips 50PF9631D/10 with flashing pixels (like snow) all over the screen. If it is voltage adjustment or a couple of caps that need replacing then i can sort. I havnt had a look yet but thought i would see if it was a common fault first!
 
Philips 50fd9955 picture cuts out and I get a blinking green light. Turn main power off and on. I get a picture for one minute and then blinking green light.
 
Thanks to all the posts. I just fixed my 42" Philips plasma TV 42PF5321D/37. As per post and photo #70 by "garafax".Samsung power board, capacitors 8059 & 8060, 3300uF 10VDC 105F. Took all of 30min,,20 to remove and replace the cover, 39 screws. All in all an easy fix.:smashin::smashin: Philips designers should be strung-up by the BA$$S.

Fritz
 
So does anyone know where the fans are on these Philips Plasma units? :confused: Thanks.
 
So does anyone know where the fans are on these Philips Plasma units? :confused: Thanks.

Not all Plasmas have fans...Tbh I don't know if this particular model does, maybe someone will enlighten us?
 
Not all Plasmas have fans...Tbh I don't know if this particular model does, maybe someone will enlighten us?

Thanks for your reply JayCee.

The schematics shows there's a power source for fans?? :confused:

...but no fans in the unit, huh. Hmmm...

I bet these caps could use a lil cool air ;)



side note: how's that Lumix?
 
So does anyone know where the fans are on these Philips Plasma units? :confused: Thanks.

I have this same model, recently resurrected.

There seems to be two connection points on the board for fans.
What does your schematic say the voltage is there? Maybe a small fan could be attached to the back panel to get some air movement.
 
I have a Philips Plasma 42FD9954/17S manufactured 2003 that stopped working. Before dying, when turned on, it would make several relay clicks and would switch to protect mode (flashing red light); finally the TV would not turn on at all.

Based on the comments on this forum, I learned that the "Power Supply Panel" has faulty capacitors.

Barbusa's [permalink#6] post was very insightful. I followed Barbusa's suggestion, and replaced the following caps:
#2662 (25V 1000uF; I used a 50V 1000uF)*,
#2663 (50V 100uF)
#2664 (50V 100uF). It still did not work...

I then read kctx7's suggestion, [permalink#210] and also changed the following caps:
#2540 (25V 100uF; I used 35V 100uF)*
#2541 (25V 100uF; I used 35V 100uF)*
#2505 (50V 1000uF)

My TV now works!! THANK YOU!!
I thought the TV had died and decided to give this a shot before getting rid of it. Thanks again!

*Note: The caps I bought were higher Voltage since the store did not carry the 25V I was looking for. Based on my research, it is ok to use a higher Voltage just aslong as the "uF" value is correct. I also used the better "105 deg C" caps as recommended by Barbusa.


Thanks for all the information shared. I have my space heater back!:clap:

Here's one I found for the same model.
Code:
http://rapidshare.com/files/344062436/FM23_AC__FM24_AB__FM33_AA.pdf
 
I have this same model, recently resurrected.

There seems to be two connection points on the board for fans.
What does your schematic say the voltage is there? Maybe a small fan could be attached to the back panel to get some air movement.

I will check and let you know! Thanks.
 
Hi all:
I have a 42" Philips plasma HD TV Model 42PF5321D/37. All components are SAMSUNG. The first problem was the flashing red light, 4 Flashes, on start-up,the green power light was off, no sound or picture. From info I found on another Forum I determined that the problem was blown capacitors on the power supply board, LJ44-00101C. I replaced C8059 and C8060. It powered-up and worked like new, Everyone was HAPPY. Six days later after the TV had been on and working fine for over an hour the lower half of the screen turned red, a few seconds later the whole screen was all red, then went blank,no sound. The green power light was still on, no red light. I could turn the set off and on with the remote or on/off switch on the set, but still no picture or sound. I took the back off, checked all components nothing appeared overheated or blown, all fuses OK, no bulging capacitors. I powered it up with the back off, got the two clicks from the power relays, the green power led on the front came on, no picture or sound. The 3 green LEDs on the Power Supply board LJ44-00101C are on steady, there are 2 green LEDs on the Logic board LJ92-01270A, one is flashing the other is on steady. I can hear a pulsing hum, that matches the flashing LED on the logic board, coming from the large heat sink on the Y-Main board LJ92-01200A.
Anyone have similar problems, or any suggestions .
Thanks
 
Hello everyone,,I am a newbie to the forum, but not fixing TVs. as I started out in 1950 doing that.

I have never done anything much with plasma's but my friend has this old 32pv9944 with only the red LED on,,no relays click.

All of the caps were good,,I have an ESR meter but changed 2 to get them all 100% before I plug the power board on the bench is there anything known, the 5 volt to the stby is good, all of the others appear to be pulsing tripping and the same with all connectors out

I did not get much joy in downloading the service manual
 
Hi, I have a 42pf5321. None of the boards in any of the pics look like mine, the caps all look fine too. I'm getting two clicks when I plug it in and a green led, but thats it, then nothing. Any ideas on whether a cap can go but not look it?! I don't fancy changing every cap on the board thats all.
Any help at all will be appreciated.
Thanks, Phil.
 

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