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Search: Posts Made By: ultimatt
Forum: Troubleshooting TVs and Video Sources 05-22-2017, 06:06 PM
Replies: 0
Views: 752
Posted By ultimatt
TNPH0831AG - TC-P42U2 Main or "A" board

anyone happen to have one they would like to sell?

Has to be part TNPH0831AG

Thanks.
Forum: Troubleshooting TVs and Video Sources 04-28-2017, 01:41 PM
Replies: 9
Views: 1,734
Posted By ultimatt
Re: Panasonic TC-P42U2 - no click...no blinks

Would anyone happen to have a Panasonic TXN/A1LJUUS / Board Number(s): TNPH0831AG main board they would like to sell?
Forum: Troubleshooting TVs and Video Sources 04-27-2017, 09:13 PM
Replies: 9
Views: 1,734
Posted By ultimatt
Re: Panasonic TC-P42U2 - no click...no blinks

I don't think its the PSU...fuses check good and I'm getting power to the board.

Based on what I've read here and elsewhere I think its the Main or "A" board that is bad.
Forum: Troubleshooting TVs and Video Sources 04-25-2017, 10:51 AM
Replies: 9
Views: 1,734
Posted By ultimatt
Re: Panasonic TC-P42U2 - no click...no blinks

yes...no click when plugged in and power button does not click or do anything...also cannot generate click with remote
Forum: Troubleshooting TVs and Video Sources 04-25-2017, 07:37 AM
Replies: 9
Views: 1,734
Posted By ultimatt
Panasonic TC-P42U2 - no click...no blinks

When plugged in will not turn on...no click no blinks.

Suspect it is the A Board...what is the procedure to troubleshoot to confirm A Board is bad?

Thanks.
Forum: Troubleshooting TVs and Video Sources 04-02-2016, 12:42 PM
Replies: 10
Views: 2,147
Posted By ultimatt
Re: Panasonic TC-P50S30 7 Blinks

"Also heatsinked version from higher specced models will work."

Do you happen to have some parts numbers for a heatsinked SU's that will work? If I go that route would I need to replace the SU...
Forum: Troubleshooting TVs and Video Sources 04-02-2016, 10:45 AM
Replies: 10
Views: 2,147
Posted By ultimatt
Re: Panasonic TC-P50S30 7 Blinks

Well, Looks like it is an SU problem. There are shorts to ground at both the SU2 and SU3 ribbon connectors.

If I disconnect SU from both the SC and SD boards and power up will this give me a...
Forum: Troubleshooting TVs and Video Sources 04-02-2016, 09:55 AM
Replies: 10
Views: 2,147
Posted By ultimatt
Re: Panasonic TC-P50S30 7 Blinks

OK, so jumped SC50 with buffer connections and ground screws removed.

Got a solid power LED and the LED's on the SC and SS board both lit.

How can I isolate the problem further to the SD / SU...
Forum: Troubleshooting TVs and Video Sources 04-02-2016, 06:39 AM
Replies: 10
Views: 2,147
Posted By ultimatt
Re: Panasonic TC-P50S30 7 Blinks

That is my next step...weird thing is I checked the buffer connectors for a SD or SU short to ground and could not find one..from past experience an IC short to ground has always been the problem in...
Forum: Troubleshooting TVs and Video Sources 04-01-2016, 10:41 PM
Replies: 10
Views: 2,147
Posted By ultimatt
Re: Panasonic TC-P50S30 7 Blinks

No continuity between the 2 pins at SC2
Forum: Troubleshooting TVs and Video Sources 04-01-2016, 09:40 PM
Replies: 10
Views: 2,147
Posted By ultimatt
Panasonic TC-P50S30 7 Blinks

So a neighbor just gave me this set with no picture and 7 blinks.

Per the service manual it is a SC, SD or SU problem. or maybe all 3.

I disconnected the SC ribbon cable and power connection...
Forum: Troubleshooting TVs and Video Sources 10-25-2015, 01:23 PM
Replies: 22
Views: 2,179
Posted By ultimatt
Re: Panasonic TH50PZ80U - power button

"Another question, for the fuse that failed can it fail due to an overload condition or short within the TV itself or can it only fail due to an overload or short from the main AC power input?"

to...
Forum: Troubleshooting TVs and Video Sources 10-24-2015, 02:20 PM
Replies: 22
Views: 2,179
Posted By ultimatt
Re: Panasonic TH50PZ80U - power button

Another question, for the fuse that failed can it fail due to an overload condition or short within the TV itself or can it only fail due to an overload or short from the main AC power input?
Forum: Troubleshooting TVs and Video Sources 10-24-2015, 02:15 PM
Replies: 22
Views: 2,179
Posted By ultimatt
Re: Panasonic TH50PZ80U - power button

OK, got the fuse problem sorted on the power (ac) board.

Plugged the unit in and immediately got the "click" to indicate it was getting power. I immediately unplugged it.

So, I solved the fuse...
Forum: Troubleshooting TVs and Video Sources 10-18-2015, 04:53 PM
Replies: 22
Views: 2,179
Posted By ultimatt
Re: Panasonic TH50PZ80U - power button

guess I will replace the fuse and see what happens...at least at that point I will only have a few $$ in it...

Thanks for your help Tom
Forum: Troubleshooting TVs and Video Sources 10-18-2015, 04:42 PM
Replies: 22
Views: 2,179
Posted By ultimatt
Re: Panasonic TH50PZ80U - power button

interesting...we had bad storms here of late wonder if it got hit?

Do they work in series or parallel?

guess I will order 2 fuses in case there are larger issues...
Forum: Troubleshooting TVs and Video Sources 10-18-2015, 04:25 PM
Replies: 22
Views: 2,179
Posted By ultimatt
Re: Panasonic TH50PZ80U - power button

any idea what that particular fuse is protecting?
Forum: Troubleshooting TVs and Video Sources 10-18-2015, 03:58 PM
Replies: 22
Views: 2,179
Posted By ultimatt
Re: Panasonic TH50PZ80U - power button

alright..decided to go back to class 101 - check fuses.

All had continuity except for 1 on the "P" AC board - see red box in attached pic.

Is this a fuse that can be had off Mouser or Digi-Key...
Forum: Troubleshooting TVs and Video Sources 10-18-2015, 02:55 PM
Replies: 22
Views: 2,179
Posted By ultimatt
Re: Panasonic TH50PZ80U - power button

found one...thanks..

per the 6.3 no power flowchart a "no lit" condition would indicate you check the "p" board...is it referring to the "p" main or the "p" AC or both...

since the power goes...
Forum: Troubleshooting TVs and Video Sources 10-18-2015, 02:44 PM
Replies: 22
Views: 2,179
Posted By ultimatt
Re: Panasonic TH50PZ80U - power button

does anyone have a link to a service manual?
Forum: Troubleshooting TVs and Video Sources 10-18-2015, 01:58 PM
Replies: 22
Views: 2,179
Posted By ultimatt
Re: Panasonic TH50PZ80U - power button

since it is late in the day just thought I would ask...

IF jumping the wires does not produce power what would be the next thing to check?

What are the possible problems? I had another 50PZ80U...
Forum: Troubleshooting TVs and Video Sources 10-18-2015, 01:28 PM
Replies: 22
Views: 2,179
Posted By ultimatt
Re: Panasonic TH50PZ80U - power button

right...no click when it is plugged in ...nothing...

going to do as tom suggested and short across the two wires to see if I can get it up.

If it is just the spring that has failed is that...
Forum: Troubleshooting TVs and Video Sources 10-18-2015, 01:07 PM
Replies: 22
Views: 2,179
Posted By ultimatt
Panasonic TH50PZ80U - power button

picked up a TH50PZ80U for free...does not work.

Plugged it in and it does nothing...no lights...no sounds nothing.

Took the back cover off an all boards are there and all connections tight. No...
Forum: Troubleshooting TVs and Video Sources 04-15-2015, 03:33 PM
Replies: 9
Views: 5,442
Posted By ultimatt
Re: LG 50PT350 sound but no picture

Well...luckily I was able to cancel my order for the Y Sus board.

I did some more digging and found a thread talking about problems with the logic board that sounded like my problems. The very...
Forum: Troubleshooting TVs and Video Sources 04-05-2015, 04:48 AM
Replies: 9
Views: 5,442
Posted By ultimatt
Re: LG 50PT350 sound but no picture

OK...ordered a YSUS board.

One question, when checking the IC's on the Y buffers I should be checking between the ground(s) on the power to the buffer board and all the pins on the IC ribbon...
Showing results 1 to 25 of 29

 
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