All about Electronic (Electronic circuits, wiring, equipments and safety Dedicated Discussion)

mrdeejay (mrdeejay) 2022-06-28 00:28:21 +0500 #61

Anyone know of a quality laptop/pcb repair shop in Lahore? I need to get a SMT flex cable connector replaced on my laptop's motherboard. Already have the connector, just need someone with exceptional soldering skills.

horticulturalist (Toretto) 2022-06-28 01:36:44 +0500 #62

I am in Peshawar and replacement circuits are very bad quality. The LED light was from osaka, they make pretty good lights.

Hassan1991 (Electrical Engineer ) 2022-06-28 01:38:26 +0500 #63

Check daraz.

awais924 (Regular) 2022-07-01 14:18:15 +0500 #64

@Hassan1991 do I need to add relay if changing halogen headlight to smd one?

helper_learner (helper_learner) 2022-07-01 15:28:29 +0500 #65

No if wattage are same or lower....

Hassan1991 (Electrical Engineer ) 2022-07-01 20:21:22 +0500 #66

Nope as said by @helper_learner.

awais924 (Regular) 2022-07-02 12:32:24 +0500 #67

@helper_learner @Hassan1991 ok thank you

helper_learner (helper_learner) 2022-07-02 18:40:22 +0500 #68

No need, Here to help

horticulturalist (Toretto) 2022-07-05 13:41:49 +0500 #69

I want to build a simple charge controller which can charge a 12v 180AH battery from a 60V 20A solar system

helper_learner (helper_learner) 2022-07-05 14:17:05 +0500 #70

Best is to buy this one;

horticulturalist (Toretto) 2022-07-05 14:38:48 +0500 #72

Sir its not for large voltages like 60v. I am pretty sure it will blow out.

mrdeejay (mrdeejay) 2022-07-07 13:12:46 +0500 #73

Does anyone know of a good laptop/electronics repair guy who can solder surface-mount connector? The connector in my laptop broke and its causing issues, need to get it fixed urgently

helper_learner (helper_learner) 2022-07-07 20:54:34 +0500 #74

Which connector?

mrdeejay (mrdeejay) 2022-07-07 22:47:03 +0500 #75

surface-mount flex-cable connector

brownrose78 (brownrose78) 2022-07-17 23:03:54 +0500 #76

Mr. Shahzad 0313 2868200 near Regal Chowk, Karachi is quite expert in this but condition is that you have to guide him too

mrdeejay (mrdeejay) 2022-07-18 02:41:39 +0500 #77

I'm in Lahore. Anyways, I took it hafeez center a guy there fixed it easily.

horticulturalist (Toretto) 2022-07-18 07:35:08 +0500 #78

AoA,
my inverter smoked due to unidentified reasons. I think someone tried to run it only on solar without battery attached. Now its giving fault 9 (bus soft start failed). Please help me which parts and ICs I need to check before replacing them.
The inverter is Inverex aerox 1.2, warranty is void just a month ago.

horticulturalist (Toretto) 2022-07-18 08:44:53 +0500 #79

I only see these two FETs bursted.

Should I or shouldn't I change this IC (3525)? How to check it?

horticulturalist (Toretto) 2022-07-18 11:34:08 +0500 #80

Bhai @Hassan1991 @helper_learner buhut garmi hy, your help will be highly appreciated.
I tried to check the other mosfets (3306) in the same line, continuity mode, they show contuinity (beeps) between Source and Drain. Does it mean all the mosfets are short?

How to test the 3525?

helper_learner (helper_learner) 2022-07-18 11:46:07 +0500 #81

This is how you can test fb3306g ic

https://www.google.com/amp/s/www.homemade-circuits.com/how-to-check-mosfet-using-digital/amp/

First get the fb3306g ic replaced... replace all three even the one which is group and is with the 2 bad one....

I don't think that you need to mess with any other before replacing fb3306g ic...