Pioneer Plasma Pro 1120HD fixable or Not? 2 pictures shown

[heavymachines]

Re: Pioneer Plasma Pro 1120HD fixable or Not? 2 pictures shown

Depends on size of caps determines heating time. Anywhere from 30 sec to 1 min er so.


Hairdryer setting on med to high.

[Boyd1966]

Re: Pioneer Plasma Pro 1120HD fixable or Not? 2 pictures shown

Gold Jerry Gold! .... I think I found the cap. It was the one you originally said. The first one 280v 300. I heated it longer, turned on set. Picture came right up and as the cap cooled, the picture would slowly go dark. I tested again, turned off set, heated cap, turned on set, picture came back again. To test further, I blew cool air on the cap and the picture went dark fast...kind of in sync as the cap cooled.

Here are two pictures of the same area.

But what about the small caps around it. I am sure those got warm too.

[heavymachines]

Re: Pioneer Plasma Pro 1120HD fixable or Not? 2 pictures shown

Ok lets see if i can find a replacement for ya...

[heavymachines]

Re: Pioneer Plasma Pro 1120HD fixable or Not? 2 pictures shown

Well i am having a hard time finding replacement, i am sure somebody here can source this cap. In meantime i will keep looking. But you've successfully isolated the problem without a doubt.



What you're doing by heating the cap with heat is liquifying the electrolytic making it temporary have capacitance. With age and heat and cooling over time they dry out internally.

[Boyd1966]

Re: Pioneer Plasma Pro 1120HD fixable or Not? 2 pictures shown

Are u sure its the 280v 300 and not one of the small ones around it? I suppose tge board would have to be taken out then the new one soldered in right?

[Boyd1966]

Re: Pioneer Plasma Pro 1120HD fixable or Not? 2 pictures shown

Why wouldnt an electrinics store have it? Or pioneer?

[heavymachines]

Re: Pioneer Plasma Pro 1120HD fixable or Not? 2 pictures shown

Plasmas are obsolete parts will get more scarce. I believe everybody quit making plasmas end of 2014. There will be somebody that has this part, many folks horde old new stock.

[Boyd1966]

Re: Pioneer Plasma Pro 1120HD fixable or Not? 2 pictures shown

Oh ok. I cant thank u enough

[heavymachines]

Re: Pioneer Plasma Pro 1120HD fixable or Not? 2 pictures shown

Give freakafter8 some credit as he shortened our diagnostic time since i was going to start with standard procedure. He has worked on this model before.

[heavymachines]

Re: Pioneer Plasma Pro 1120HD fixable or Not? 2 pictures shown

Are u sure its the 280v 300 and not one of the small ones around it? I suppose tge board would have to be taken out then the new one soldered in right?

Yes you will need to do some soldiering have you soldiered before? Yes it will require removing Ysus. If you have no experience it may be best to pay a local pc shop or electronics shop to soldier it in for you for a small fee if you bring them the parts. Re test heating up just that big cap with non conductive shielding such as paper funnel to focus heat to just that capacitor.

[Boyd1966]

Re: Pioneer Plasma Pro 1120HD fixable or Not? 2 pictures shown

I think ill take it an electonics repai shop i know of.

[Boyd1966]

Re: Pioneer Plasma Pro 1120HD fixable or Not? 2 pictures shown

And yes many thanks to freakafter8 too!!!

[Boyd1966]

Re: Pioneer Plasma Pro 1120HD fixable or Not? 2 pictures shown

N

[heavymachines]

Re: Pioneer Plasma Pro 1120HD fixable or Not? 2 pictures shown

Have you tried focusing heat to specific cap? er caps one at time?

[freakaftr8]

Re: Pioneer Plasma Pro 1120HD fixable or Not? 2 pictures shown

Good job. I believe the cats you might be wanting to replace are the small 47 MFD. I don't believe the big 280 volt 300 is the source of the problem

[Boyd1966]

Re: Pioneer Plasma Pro 1120HD fixable or Not? 2 pictures shown

I did my best trying one at a time but the hair dryer mouth is big and the caps are close. So i am not sure exactly which cap is the culprit. I thought it was the 280 300 cap.

[heavymachines]

Re: Pioneer Plasma Pro 1120HD fixable or Not? 2 pictures shown

Did u make a funnel to focus heat from dryer to cap? you can use just about anything non conductive and some scotch tape and scissors or any kind of tape. lil bit of crafting...

[Boyd1966]

Re: Pioneer Plasma Pro 1120HD fixable or Not? 2 pictures shown

Aw man. I thought of that but didnt do it. I have a plastic funnel i can use. I will do it tomorrow. Have to start dinner and watch DJ win the world gilf match.

[heavymachines]

Re: Pioneer Plasma Pro 1120HD fixable or Not? 2 pictures shown

Also what are the values of these caps as well that i circled in yellow?....

[freakaftr8]

Re: Pioneer Plasma Pro 1120HD fixable or Not? 2 pictures shown

They're all labeled on the side of the caps but the smallest of the four that you have circled are the 47 microfarad. Unfortunately I don't have that board available to read cap specs. just for good measure I would replace all four to be on the safe side that you have circled