ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

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R_J

Badcaps Veteran

Join Date: Jun 2012

Posts: 9184

Country: Canada
#21

06-12-2019, 11:28 AM

Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

Is this it? https://www.aliexpress.com/item/PTC-...27023b32CUMREi
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diif

Badcaps Veteran

Join Date: Feb 2014

Posts: 7029

Country: England
#22

06-12-2019, 12:14 PM

Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

Originally posted by WhiteWolfHellas View Post

Thanks for the reply, but the link is not working.
Glad to hear no comebacks even after greatly heating up the new led. Do you lower the backlight after the repair in order for the leds to last longer?

Apologies, I shortened all the tracking info from the link and trimmed too much.
https://www.aliexpress.com/item/1pc-...974173898.html

I remove the LED with the heater but depending on how much solder is left I then remove all the leaded solder and replace with lead free.
When attaching a new LED it's staying well within reflow temperature parameters.

Yes I turn down the back light.
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WhiteWolfHellas

Member

Join Date: Jun 2019

Posts: 92

Country: Greece
#23

06-13-2019, 04:27 AM

Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

Originally posted by diif View Post

Apologies, I shortened all the tracking info from the link and trimmed too much.
https://www.aliexpress.com/item/1pc-...974173898.html

I remove the LED with the heater but depending on how much solder is left I then remove all the leaded solder and replace with lead free.
When attaching a new LED it's staying well within reflow temperature parameters.

Yes I turn down the back light.

Do you replace the shorted LEDs, or do you replace every LED in the strip, even the good ones with new? Plus, isn't in more convinient to use liquid solder?

Last edited by WhiteWolfHellas; 06-13-2019, 04:28 AM.
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diif

Badcaps Veteran

Join Date: Feb 2014

Posts: 7029

Country: England
#24

06-13-2019, 05:30 AM

Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

Just the damaged ones usually.
The LED strip is resting on a hotplate, the solder is liquid.
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WhiteWolfHellas

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Join Date: Jun 2019

Posts: 92

Country: Greece
#25

06-14-2019, 01:18 AM

Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

Originally posted by diif View Post

Just the damaged ones usually.
The LED strip is resting on a hotplate, the solder is liquid.

Just the damaged ones only? Strange that you haven't got returns because the old ones tend to die shortly after. I have had returns by replacing just the damaged ones so I stopped using this repair method.
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diif

Badcaps Veteran

Join Date: Feb 2014

Posts: 7029

Country: England
#26

06-14-2019, 01:57 AM

Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

Originally posted by WhiteWolfHellas View Post

Just the damaged ones only? Strange that you haven't got returns because the old ones tend to die shortly after. I have had returns by replacing just the damaged ones so I stopped using this repair method.

Not really, after repairing the failed ones I run the backlights at 100% for 24 hours. Any further failures are replaced before they are turned down.
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WhiteWolfHellas

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Join Date: Jun 2019

Posts: 92

Country: Greece
#27

06-14-2019, 05:08 AM

Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

Originally posted by diif View Post

Not really, after repairing the failed ones I run the backlights at 100% for 24 hours. Any further failures are replaced before they are turned down.

Is it guaranteed that with this method (replacing just the dead ones and leaving the TV on at 100% backlight for 24 hours) the about to die old ones will die for sure? I mean what if you stress them and they die a week down the line? You'll have to repeat the proccess.
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diif

Badcaps Veteran

Join Date: Feb 2014

Posts: 7029

Country: England
#28

06-14-2019, 05:15 AM

Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

Originally posted by WhiteWolfHellas View Post

Is it guaranteed that with this method (replacing just the dead ones and leaving the TV on at 100% backlight for 24 hours) the about to die old ones will die for sure? I mean what if you stress them and they die a week down the line? You'll have to repeat the proccess.

I warranty my work but nothing is every guaranteed, even new can fail.
If I stress them and they die in a week I replace them, but I haven't had to yet.
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WhiteWolfHellas

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Join Date: Jun 2019

Posts: 92

Country: Greece
#29

06-14-2019, 10:14 AM

Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

Originally posted by diif View Post

I warranty my work but nothing is every guaranteed, even new can fail.
If I stress them and they die in a week I replace them, but I haven't had to yet.

So, for example in a 10 led strips TV, only 3 leds are burned out. You just replace the 3 leds, leave the TV on at 100% backlight for 24 hours and if there are more to die, they die, you replace them and leave the TV on for another 24 hours? If it still works, you assemble the TV and call it a day?
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diif

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#30

06-14-2019, 02:28 PM

Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

I do use a bench power supply for my testing so perhaps they are failing then rather than with the TV powering then. I haven't had any failures when testing for 24 hours
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budm

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#31

06-14-2019, 03:48 PM

Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

https://www.aliexpress.com/item/32974173898.html

item #32974173898

Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956

Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999

Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl

Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/

TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809
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diif

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Join Date: Feb 2014

Posts: 7029

Country: England
#32

06-14-2019, 06:03 PM

Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

Originally posted by budm View Post

https://www.aliexpress.com/item/32974173898.html

item #32974173898

They work better if the screws and feet are mounted the other way round so they raise the plate off the worktop and the narrow middle piece is used for the heat rather than the larger size.
I have a thermocouple jammed inside to get an idea of the temperature.
I intent do connect it to a PID and a relay for slightly better control but it doesn't burn FR4 unless it's left on too long.
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budm

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Country: USA
#33

06-14-2019, 09:05 PM

Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

They sure have lots of 230V version, 120V seems to be hard to come by on Ali.

Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956

Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999

Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl

Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/

TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809
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sam_sam_sam

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Join Date: Jul 2011

Posts: 4679

Country: USA
#34

06-14-2019, 11:08 PM

Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

Here is a 24 volt version of it

It not quite the same size but it should work

I ordered 10 of them

http://s.aliexpress.com/uie6nue2

9 PC LCD Monitor
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30 Desk Top Switching Power Supply
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1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
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All of the mosfet that are taken out by bad caps
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diif

Badcaps Veteran

Join Date: Feb 2014

Posts: 7029

Country: England
#35

06-15-2019, 12:33 AM

Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

Originally posted by budm View Post

They sure have lots of 230V version, 120V seems to be hard to come by on Ali.

Is it because they are not affected by the voltage difference ? I tried controlling my PTC with a variac but it still got the same temperature.
Yes can confirm, setting the voltage to 120V with my variac and the heater still gets to temperature.

Originally posted by sam_sam_sam View Post

Here is a 24 volt version of it

It not quite the same size but it should work

I ordered 10 of them

http://s.aliexpress.com/uie6nue2

Yes, I looked at those, then wondered how I would mount them.
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stj

Great Sage 齊天大聖

Join Date: Dec 2009

Posts: 29505

Country: some shithole run by Israeli agents
#36

06-15-2019, 05:36 AM

Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

sale starts in 2 days - $4!!
https://www.aliexpress.com/item/32974173898.html
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diif

Badcaps Veteran

Join Date: Feb 2014

Posts: 7029

Country: England
#37

06-15-2019, 07:22 AM

Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

Originally posted by stj View Post

sale starts in 2 days - $4!!
https://www.aliexpress.com/item/32974173898.html

It was £3.50 at the beginning of the week. Nothing like putting the price up just before a sale !
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stj

Great Sage 齊天大聖

Join Date: Dec 2009

Posts: 29505

Country: some shithole run by Israeli agents
#38

06-15-2019, 08:45 AM

Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

i said $, not £
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budm

Badcaps Veteran

Join Date: Feb 2010

Posts: 40746

Country: USA
#39

06-15-2019, 05:25 PM

Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

Originally posted by diif View Post

Is it because they are not affected by the voltage difference ? I tried controlling my PTC with a variac but it still got the same temperature.
Yes can confirm, setting the voltage to 120V with my variac and the heater still gets to temperature.

Yes, I looked at those, then wondered how I would mount them.

Thanks for testing it out at 120VAC, I will order a couple to play with.

Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956

Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999

Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl

Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/

TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809
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Forum Rules ALL NEW MEMBERS, PLEASE READ!! UPDATED!!