Any images or video of cold solder joints on 643hd5 board? - AVS Forum
Forum Jump: 
 
Thread Tools
post #1 of 6 Old 02-07-2012, 09:38 AM - Thread Starter
Senior Member
 
Jack Morris's Avatar
 
Join Date: Feb 2012
Posts: 211
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked: 12
I have a beloved Pioneer 643hd5 HDTV which had the well known convergence chip problem. Had the chips replaced with the recommended latest ones and reinstalled the board.
Still having the same problem - turns on for 15 seconds, front light goes red, to green and then back to red while blowing the middle fuse.

I am thinking I must have a cold solder problem on the board but have no idea what to look for or how to look for it? I'd take it back to the same shop who did my STK IC replacement, but I just don't have the money right now. I do have a nice solder gun and some good electronic solder though and some experience in the past using them.

But, before I start, does anyone have any photos or videos of how to look for and identify cold solder joints and then maybe, even showing how to repair them?

Thanks for the help!
Jack Morris is offline  
Sponsored Links
Advertisement
 
post #2 of 6 Old 02-10-2012, 05:47 AM
AVS Addicted Member
 
videobruce's Avatar
 
Join Date: Dec 2002
Location: Buffalo NY
Posts: 14,875
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 41 Post(s)
Liked: 102
It's not always obvious which ones are the culprits.
You may have to remove the offending board and 'tack' solder (resolder) as many joints as you can.
davejo likes this.

Abundant OTA television is what makes this country different from all others. Lets keep it this way.
The Internet is no place for streaming video.
videobruce is offline  
post #3 of 6 Old 02-10-2012, 08:37 AM
Member
 
sideswiper's Avatar
 
Join Date: Jan 2011
Posts: 83
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
cold solder joints are dull looking or have halo's around the pins. good solder joints are nice and shinny.
sideswiper is offline  
post #4 of 6 Old 02-10-2012, 12:12 PM
AVS Addicted Member
 
videobruce's Avatar
 
Join Date: Dec 2002
Location: Buffalo NY
Posts: 14,875
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 41 Post(s)
Liked: 102
As long as you are using lead based solder. Lead free solder has a dull appearance when cool, or at least did when it was introduced 20 or so years ago.

Abundant OTA television is what makes this country different from all others. Lets keep it this way.
The Internet is no place for streaming video.
videobruce is offline  
post #5 of 6 Old 02-14-2012, 02:35 AM
Senior Member
 
Jetmeck's Avatar
 
Join Date: Feb 2006
Posts: 478
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 20
I didn't think that 64 incher and my 53 onch SD-533HD5 were listed as having cold solder issues on the long ass Pioneer thread ?????
Jetmeck is offline  
post #6 of 6 Old 08-01-2012, 12:38 PM
Newbie
 
davejo's Avatar
 
Join Date: Aug 2012
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Quote:
Originally Posted by sideswiper View Post

cold solder joints are dull looking or have halo's around the pins. good solder joints are nice and shinny.
Quote:
Originally Posted by videobruce View Post

It's not always obvious which ones are the culprits.

You may have to remove the offending board and 'tack' solder (resolder) as many joints as you can.

thank for your useful input. it helped me a lot. It's appreciated.

assembly pcb
davejo is offline  
Reply Rear Projection Units

User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off