Panasonic TX-P42C2l : No Power with 4 LED Blinks

[tw2005]

Re: Panasonic TX-P42C2l : No Power with 4 LED Blinks

I'm stumped. I've marked your photo for D451 to confirm that is what has been removed?

And D482 checks out ok still?

[dulipra]

Re: Panasonic TX-P42C2l : No Power with 4 LED Blinks

sorry, you are correct. I done the mistake. D451 is shorted. its gone. I have mentioned it wrong (D451 insted of Q451). really apologies. So now i need to change that diode isn't it?

[tw2005]

Re: Panasonic TX-P42C2l : No Power with 4 LED Blinks

sorry, you are correct. I done the mistake. D451 is shorted. its gone. I have mentioned it wrong (D451 insted of Q451). really apologies. So now i need to change that diode isn't it?

thank god for that. I'm tearing my hair out going over a 5081 board trying to work out how the devil this could be because electrically what you said made no sense.

No need to apologise, glad we can move on.

I'd really appreciate it if you could make the effort to provide the information I have requested though. helps me and good for repair historyies.

So we'll get back to this diode shortly.

Can I have cross referenced the part locations to there part numbers for all the heatsinked parts replaced please.

eg q661 = RJP63F3A, etc,etc.

Go to q621 please and resistance that g-c, g-e, c-e and identify what the part number of that is.

[dulipra]

Re: Panasonic TX-P42C2l : No Power with 4 LED Blinks

Thanks

D482 = RFUS20
Q661 = RJP63F3A
Q451 = 45G128
Q401, 402 = DG502LW
Q421, 422 = RJP43F4A
IC521= M81737FP

Q621 = RJP3034
g-c = 0.78 Mohm
g-e = 47 Kohm
c-e = 148Kohm

[tw2005]

Re: Panasonic TX-P42C2l : No Power with 4 LED Blinks

Thanks

D482 = RFUS20
Q661 = RJP63F3A
Q451 = 45G128
Q401, 402 = DG502LW
Q421, 422 = RJP43F4A
IC521= M81737FP

Q621 = RJP3034
g-c = 0.78 Mohm
g-e = 47 Kohm
c-e = 47Kohm

Good results for that one.

thanks, that suggests RJP3034 is a suitable replacement fo 30f125 and RJP43F4A are suitable for DG402RP for they are what is in the 5081 boards.

Now back to this diode, any chance you have other dead boards from plasma Tvs laying around or is this you're one and only Plasma repair?

[dulipra]

Re: Panasonic TX-P42C2l : No Power with 4 LED Blinks

Sorry this is the only on plasme TV i have

[tw2005]

Re: Panasonic TX-P42C2l : No Power with 4 LED Blinks

Sorry this is the only on plasme TV i have

Bugger, ok no option but to source one. I don't know the UK. Any large electronics places like RS components, element14, Watford Tv, CHS Interactive etc around you? Anything open today being easter?

[tw2005]

Re: Panasonic TX-P42C2l : No Power with 4 LED Blinks

Tom66, any suggestions being the local for this?

[dulipra]

Re: Panasonic TX-P42C2l : No Power with 4 LED Blinks

Yep, RS
http://uk.rs-online.com/web/
not sure today. have to wait till monday if they have no stock

[vinceroger69]

Re: Panasonic TX-P42C2l : No Power with 4 LED Blinks

Yep, RS
http://uk.rs-online.com/web/
not sure today. have to wait till monday if they have no stock

my local one isnt open monday as bank holiday i havnt read the whole thread whats the diode specs your after?

[dulipra]

Re: Panasonic TX-P42C2l : No Power with 4 LED Blinks

my local one isnt open monday as bank holiday i havnt read the whole thread whats the diode specs your after?

it's RF071L4S(original), RF101L4S(higher peak) (400V 1A) or something equivalent. super fast recovery diodes

[tw2005]

Re: Panasonic TX-P42C2l : No Power with 4 LED Blinks

RS don't have exact and I don't like the qty you need to buy. Looking at 10GBP for 100

thinking http://uk.rs-online.com/web/p/rectif...iodes/8075336/

Any TV shop repairing panasonic SC boards should have some on hand or a fellow UK Badcapper may be able to salvage from from a scrap board which is where I was heading hoping you tinkered abit and had some boards around.

I'm very confident this is all stopping this from working from my 5081 experiences. i forgot to replace this same diode and exact symptoms you now have.

[vinceroger69]

Re: Panasonic TX-P42C2l : No Power with 4 LED Blinks

Maybe tom will know whoes likely to stock these in the uk not sure about cpc? or wiltsgrove electronics? in birmingham also Watford Tv have a ebay shop may have contact details on there page if not i would send them a message. I have just had a quick look in my spare boards pile/boxes but havnt any plasma tv boards at all only lcd/led boards.

[tw2005]

Re: Panasonic TX-P42C2l : No Power with 4 LED Blinks

GTV.356 ST ALBANS ROAD, WATFORD, WATFORD, HERTFORDSHIRE, WD24 6PQ,TEL 05601264174

Panasonic specialist, only deals with OEM parts so it'll cost.

This also proves getting kits can be a trap, neither GTV or OHM Supplies list D451 so you would have ended here anyway. Little annoyed I did not spot this deficiency as I've had to replace those in half of the 5081 boards I've fixed.

This is the panasonic number for that part

B0ECKP000055

[dulipra]

Re: Panasonic TX-P42C2l : No Power with 4 LED Blinks

Thank you guys. tw2005, i think i'll go with RS part you have mentioned. but still i have to wait till tuesday coz its out of stock in Manchester. I'll let you know as soon as i replaced that. thanks again.

[tw2005]

Re: Panasonic TX-P42C2l : No Power with 4 LED Blinks

Thank you guys. tw2005, i think i'll go with RS part you have mentioned. but still i have to wait till tuesday coz its out of stock in Manchester. I'll let you know as soon as i replaced that. thanks again.

your call, seems a lot of money for only 1 part, what if I'm wrong?

That means you're going to repair another 99 of these

I could post but could be 2 weeks before it arrives

[tw2005]

Re: Panasonic TX-P42C2l : No Power with 4 LED Blinks

TRy a PM to Flocko, mention my name. He's bound to have something in his pile

[tw2005]

Re: Panasonic TX-P42C2l : No Power with 4 LED Blinks

How far is lancashire? Scrap one from this board

http://www.ebay.co.uk/itm/XSUS-BOARD...item3a9724c8dc

[dulipra]

Re: Panasonic TX-P42C2l : No Power with 4 LED Blinks

your call, seems a lot of money for only 1 part, what if I'm wrong?

That means you're going to repair another 99 of these

I could post but could be 2 weeks before it arrives

ha haa yes, i'll try to sell the rest on ebay. if you gonna send still it gonna costs some money and time. so i think RS is the best option i have now. anyway really appreciate ur help. thank you

[tw2005]

Re: Panasonic TX-P42C2l : No Power with 4 LED Blinks

This one sell kits with that in it, maybe they'd sell one

KP Electronics
11 Sedgecombe Ave
Kenton
Harrow
HA3 0HW
United Kingdom
Tel. 07805 030559