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Crumbtrail TV Forums: TV Equipment: TV Repair Forum:
How to Repair Damaged Ribbon Cable?

 
 


tony0000
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Sep 6, 2016, 1:23 AM

Post #1 of 13 (2029 views)
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How to Repair Damaged Ribbon Cable? Can't Post
Hi. I have a Vizio M420NV TV. The remote didn't work. When I opened the TV, I found the ribbon cable leading into the IR sensor was unattached. It had broken off very near the end somehow. Replacement cables are very expensive. So how to repair the snapped cable? I tried sanding down the ribbon to expose the six strips it contained. Didn't fix problem. <br> <br>(Here's photo. On left is sanded ribbon end. On right is good end going into circuit board. <br> <br>https://photos.google.com/photo/AF1QipNWblRSAaJ-jhoBasv-odjuHY401dRf3ZjYzY_c ) <br> <br>Any suggestions? <br> <br>Thanks, <br> <br>Tony <br>


(This post was edited by tony0000 on Sep 6, 2016, 1:24 AM)



jts1957
Veteran


Sep 6, 2016, 1:57 AM

Post #2 of 13 (2024 views)
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Re: [tony0000] How to Repair Damaged Ribbon Cable? [In reply to] Can't Post
https://photos.google.com/photo/AF1QipNWblRSAaJ-jhoBasv-odjuHY401dRf3ZjYzY_c
"404. That’s an error"


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Location: Far, Far Away


tony0000
New User

Sep 6, 2016, 2:13 AM

Post #3 of 13 (2022 views)
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Re: [jts1957] How to Repair Damaged Ribbon Cable? [In reply to] Can't Post
Sorry. Try this: <br>

http://s1195.photobucket.com/user/epitony/media/ribbon.jpg.html


jts1957
Veteran


Sep 6, 2016, 3:53 AM

Post #4 of 13 (2019 views)
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Re: [tony0000] How to Repair Damaged Ribbon Cable? [In reply to] Can't Post
You aren't much for specifics (pitch & length). 67 cents each.
Here's enough to do your project ten times (or enough for you and nine friends or you can resell?)


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Location: Far, Far Away


tony0000
New User

Sep 6, 2016, 11:52 AM

Post #5 of 13 (1996 views)
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Re: [jts1957] How to Repair Damaged Ribbon Cable? [In reply to] Can't Post
Thanks for the suggestion. I need AWM 20861 6-pin, about 500 mm. I can't find any new for sale. (Somebody wants $50 for a used cable and sensor--too much!) Splicing two or more shorter pieces together seems as difficult as repairing the piece I have.

Tony


jts1957
Veteran


Sep 6, 2016, 12:57 PM

Post #6 of 13 (1994 views)
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Re: [tony0000] How to Repair Damaged Ribbon Cable? [In reply to] Can't Post
Are you sure it has to be nearly 20 inches in length?


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Location: Far, Far Away


tony0000
New User

Sep 6, 2016, 5:32 PM

Post #7 of 13 (1986 views)
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Re: [jts1957] How to Repair Damaged Ribbon Cable? [In reply to] Can't Post
I definitely need something over 300mm. Here's what the original looks like:

http://www.ebay.com/itm/Vizio-M420NV-IR-Sensor-3642-0162-0189-08A8261693-2A-with-Ribbon-Cable-/391547000061?hash=item5b2a0514fd:g:sJ8AAOSwFe5XxmSZ


jts1957
Veteran


Sep 6, 2016, 6:07 PM

Post #8 of 13 (1984 views)
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Re: [tony0000] How to Repair Damaged Ribbon Cable? [In reply to] Can't Post
Well then does original have an inch or more of slack? And do you still have the blue backing plastic?


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Location: Far, Far Away

(This post was edited by jts1957 on Sep 6, 2016, 6:08 PM)


tony0000
New User

Sep 6, 2016, 6:19 PM

Post #9 of 13 (1981 views)
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Re: [jts1957] How to Repair Damaged Ribbon Cable? [In reply to] Can't Post
Yes, the original cable can be re-routed to create about 4 inches of slack.


jts1957
Veteran


Sep 6, 2016, 7:22 PM

Post #10 of 13 (1980 views)
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Re: [tony0000] How to Repair Damaged Ribbon Cable? [In reply to] Can't Post
Well then glue the blue plastic onto rear of remaining stripped wire. Line up the blue plastic to where all six conductors are bare. About the distance that the tip (white part) of your fingernail would cover (I would presume more than a sixteenth - less than an eighth of an inch.) Let glue dry. Carefully trim off the protruding end with sharp scissors. Should be good to go.

Be careful glue is safe for plastic. Also that you should not get any glue on traces.

I assume you've checked all 6 traces for continuity?


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Location: Far, Far Away


tony0000
New User

Sep 6, 2016, 10:34 PM

Post #11 of 13 (1977 views)
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Re: [jts1957] How to Repair Damaged Ribbon Cable? [In reply to] Can't Post
Thanks! I'll try it (soon as I find the blue plastic). Any problem using Elmer's glue?

What do you mean by checking traces for continuity? Running a charge through? I'm not sure how I would do that. I have no equipment or instruments.


jts1957
Veteran


Sep 6, 2016, 11:04 PM

Post #12 of 13 (1976 views)
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Re: [tony0000] How to Repair Damaged Ribbon Cable? [In reply to] Can't Post
A rubber cement or contact cement (or even very thin 2-sided tape - like they use for mounting storm window plastic film).
A continuity tester or cheap DVM should be available at your local big box hardware-type store.


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Location: Far, Far Away


tony0000
New User

Sep 6, 2016, 11:29 PM

Post #13 of 13 (1973 views)
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Re: [jts1957] How to Repair Damaged Ribbon Cable? [In reply to] Can't Post
Ok. I'll give it a try. Thanks!

 
 
 


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