Comments on: Bypassed A Burnt Connector In LG LED TV 22LN4100-TA

By: Parasuraman S

Parasuraman S — Mon, 17 Jun 2024 07:42:13 +0000

In reply to Waleed Rishmawi.

Many thanks! I have done this type of wiring in scalar boards and backlights. It stays put.

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By: Parasuraman S

Parasuraman S — Mon, 17 Jun 2024 07:41:26 +0000

In reply to Imoudu.O.

Many thanks for your comments! Glad to note that it helped you!

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By: Waleed Rishmawi

Waleed Rishmawi — Mon, 17 Jun 2024 05:58:08 +0000

as always, a job well done and the TV is alive and kicking..lol. thanks for sharing and have a blessed day. I share the same concern about the gauge of the wire used but it should hold for a while I hope. have a blessed day

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By: Imoudu.O

Imoudu.O — Sun, 16 Jun 2024 20:28:09 +0000

Thanks for well explained bypassed repairs relating to backlight, i caught some knowledge.

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By: Parasuraman S

Parasuraman S — Sun, 16 Jun 2024 08:17:45 +0000

In reply to Philip.

Many thanks for your comments and sharing of expert experience.

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By: Parasuraman S

Parasuraman S — Sun, 16 Jun 2024 08:16:41 +0000

In reply to Yogesh Panchal.

Many thanks for your advice and comments!

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By: Philip

Philip — Sun, 16 Jun 2024 04:08:37 +0000

Thanks Parasuraman & Albert. The general working principle of a tv electronic circuit is that the SMPS has components like a fuse, varistor, chokes, diodes, optoisolator and indeed the always talked about capacitors, all these help to provide power and also help to prevent the secondary section from a power surge destruction. But as the SMPS seems to have been left unattended despite the general rule. weakened components by the surge rage are likely still lying in the whole circuit

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By: Yogesh Panchal

Yogesh Panchal — Sat, 15 Jun 2024 14:52:09 +0000

Good Job! Sir
try to use UV curable Solder mask on jumper wires for extra protection.

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By: Parasuraman S

Parasuraman S — Sat, 15 Jun 2024 13:10:58 +0000

In reply to Albert van Bemmelen.

Many thanks for your comments and sharing a very valuable information on guage of wires and its implications.

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By: Albert van Bemmelen

Albert van Bemmelen — Sat, 15 Jun 2024 11:51:15 +0000

Good job! Hopefully the long thin wires stay in place and don't burn through.

Google says => 0.1mm is roughly 38 AWG. So for that, for "chassis" wiring (i.e., short runs between boards, switches, lights, etc) the current limit is 130mA. For longer "power" runs, the limit is a mere 22.8mA. The resistance of the wire is around 659.6Ω per 1000 feet, so about 0.659Ω per foot.
The rule is that an increment of 3 in AWG numbers represents a halving of the cross-sectional area of a wire and not much current can pass through.

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