Help removing relay for Hitachi 57UWX20B

Reply

  #1  
Old 01-12-11, 08:31 PM
Member
Thread Starter
Join Date: Jan 2011
Location: USA
Posts: 11
Received 0 Votes on 0 Posts
Help removing relay for Hitachi 57UWX20B

Hi! My Hitachi 57UWX20B has no picture or sound. I unplugged the power, opened the back and plugged it back it. The light near the screen is green D940 and the light near the back is red D915. I've read that the relay could be stuck, but after gently moving and tapping it the problem remains. I ordered a new relay, but I'm having trouble getting the old one out. I thought it would just pull straight out but it seems like it's going to break and I don't want to force it and destroy the board. If someone has experience or knows how to remove relay ALKS329 part FJ00142 I would really appreciate it. Thank you in advance for your help.
 
Sponsored Links
  #2  
Old 01-13-11, 05:15 PM
Member
Join Date: May 2008
Location: USA
Posts: 1,086
Received 0 Votes on 0 Posts
Have you tried unsoldering it?
 
  #3  
Old 01-14-11, 12:46 PM
Member
Thread Starter
Join Date: Jan 2011
Location: USA
Posts: 11
Received 0 Votes on 0 Posts
Originally Posted by craftsman_50 View Post
Have you tried unsoldering it?
Thank you. It appears that I'm going to have to disassemble the connecting boards and turn it over to check as its probably soldered. The problem is parts are overlapping the boards and I don't know how to disassemble them. I'm trying to find a free service manual but unable. I was hoping there was someone that had experience with this TV and could help guide me.
 
  #4  
Old 01-14-11, 05:24 PM
Member
Join Date: May 2008
Location: USA
Posts: 1,086
Received 0 Votes on 0 Posts
Post pics of the insides of the set.Do you know how to unsolder a circuit board mounted part?
 
  #5  
Old 01-15-11, 12:02 PM
Member
Thread Starter
Join Date: Jan 2011
Location: USA
Posts: 11
Received 0 Votes on 0 Posts
Thank you for response and help. I have never unsoldered a circuit board mounted part. I own and have soldered but nothing like this TV. It states I'm not allowed to post pics. What do I have to do to be able to post pics?

When I can post the pics you'll see that there are three boards and they are connected by over lapping parts, which is my concern as it appears many other things need to be disconnected or unsoldered before I can get to replacing the relay. Please let me know your suggestions. Thank you.
 
  #6  
Old 01-15-11, 12:10 PM
Member
Join Date: May 2008
Location: USA
Posts: 1,086
Received 0 Votes on 0 Posts
I use photobucket and post a link here.Normally there is just a few screws holding the intire chasis down.You just remove the screws and undo the wiring from the plastic straps and the whole chasis can be pulled partially out and flipped over to get to the bottom.
 
  #7  
Old 01-19-11, 10:48 AM
Member
Thread Starter
Join Date: Jan 2011
Location: USA
Posts: 11
Received 0 Votes on 0 Posts
Thank you for telling me about photobucket. I uploaded the pics there and inserted the link. The 2nd pic is the relay and the 3rd pic shows where the relay is located. It's right next to the screw where the dust has been wiped away. I understand what you are saying about removing the chassis. My concern is the overlapping parts that connect from one board to another. It appears as though I need to remove many small parts. Please let me know what you think after looking at the pics or if anyone else reads this that can help I would appreciate it please. Thank you.
 
  #8  
Old 01-19-11, 10:52 AM
Member
Thread Starter
Join Date: Jan 2011
Location: USA
Posts: 11
Received 0 Votes on 0 Posts
  #9  
Old 01-19-11, 03:01 PM
Member
Join Date: Jan 2011
Location: USA
Posts: 45
Received 0 Votes on 0 Posts
your link goes right back to the forum.

It's always a pain to unsolder from TVs. Be patient and you'll save the TV and LOTS of money!!
 
  #10  
Old 01-19-11, 05:41 PM
Member
Join Date: May 2008
Location: USA
Posts: 1,086
Received 0 Votes on 0 Posts
I can't get the link to work at all.
 
  #11  
Old 01-19-11, 07:35 PM
Member
Thread Starter
Join Date: Jan 2011
Location: USA
Posts: 11
Received 0 Votes on 0 Posts
I apologize. Here's the link again.Pictures by JSWFQ - Photobucket
 
  #12  
Old 01-19-11, 08:41 PM
Member
Join Date: Jan 2011
Location: USA
Posts: 45
Received 0 Votes on 0 Posts
those black pieces that look like bridges or guitar strings do come apart. I don't remember exactly how but I do know they are detachable. possibly a small flat head screwdriver to gently pry them apart at the ends??????
 
  #13  
Old 01-19-11, 09:20 PM
Member
Thread Starter
Join Date: Jan 2011
Location: USA
Posts: 11
Received 0 Votes on 0 Posts
Tony those guitar string looking parts that overlap the three boards are my concern. I understand they need to be removed. I just don't want to break one of them in doing so. Thank you for your input. I'm going to start tomorrow hopefully Craftsman_50 or someone else will have some more advice. I appreciate the help.
 
  #14  
Old 01-20-11, 06:01 AM
Member
Join Date: May 2008
Location: USA
Posts: 1,086
Received 0 Votes on 0 Posts
Those are just board interconnects.To disconnect them ,just put your fingers on the outside edge.There is a edge to hold onto and pull straight up.Note, only one side comes up.They will unplug from a socket and to replace them you just push them back into the socket.
 
  #15  
Old 01-20-11, 09:39 AM
Member
Thread Starter
Join Date: Jan 2011
Location: USA
Posts: 11
Received 0 Votes on 0 Posts
Thank you for your help. I'm going to start working on it today.
 
  #16  
Old 01-20-11, 03:47 PM
Member
Thread Starter
Join Date: Jan 2011
Location: USA
Posts: 11
Received 0 Votes on 0 Posts
Hi Craftsman! Thankfully w/your help I was able to get all the board interconnects disconnected and the board is out. Next comes the soldering to remove the old relay and put the new one in. Any advice as I've never soldered to a board like this? Also, how long after I solder it should I wait to give it power? Please let me know. Thank you.
 

Last edited by JSWFQ; 01-20-11 at 04:27 PM. Reason: Update
  #17  
Old 01-20-11, 05:40 PM
Member
Join Date: May 2008
Location: USA
Posts: 1,086
Received 0 Votes on 0 Posts
You can use "solder wick" or a solder sucker to remove the solder when its heated up.Then resolder in the new relay and your ready to go,no waiting required.
 
  #18  
Old 01-21-11, 05:37 PM
Member
Thread Starter
Join Date: Jan 2011
Location: USA
Posts: 11
Received 0 Votes on 0 Posts
Thank you for your help. It's all done, but sadly still no sound or picture. It's more than a bad relay. Bummer!
 
  #19  
Old 01-23-11, 06:08 AM
Member
Join Date: May 2008
Location: USA
Posts: 1,086
Received 0 Votes on 0 Posts
Do you own a multimeter and know how to use it?
 
  #20  
Old 01-23-11, 05:20 PM
Member
Thread Starter
Join Date: Jan 2011
Location: USA
Posts: 11
Received 0 Votes on 0 Posts
No I don't own a multimeter and have never used one. It is something that I could learn fairly easy?
 
  #21  
Old 01-24-11, 06:02 AM
Member
Join Date: May 2008
Location: USA
Posts: 1,086
Received 0 Votes on 0 Posts
If you want to try to troubleshoot the tv , you will need one.There should be instructions somewhere on line .
 
Reply

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


Thread Tools
Search this Thread
Display Modes
 
Ask a Question
Question Title:
Description: