Macbook A1181 2006 Core Duo/1.83Ghz - screen dimming

[tsoump]

Good evening

I got a used macbook A1181 2006 1.83 Ghz (32bit- non Estar) and there was a problem, at the begging, on the battery charging issue. I opened the macbook and I found a wrong battery connector / sleep SW component. To be clear:
My logic board supports this (Non Estar- 20pins): https://www.ifixit.com/Store/Mac/MacBook-Battery-Connector-Sleep-Sensor-non-Energy-Star/IF186-015-1
I found this (18pins): https://www.ifixit.com/Store/Mac/MacBook-Battery-Connector-Sleep-Sensor-Energy-Star/IF186-042-1

The problem was that, when I insert a battery (original or not) the screen was dimming while (for example) surfing on the internet. So the macbook had not battery support - only by the cable.

I supposed adding the 2 missing pins manually could solve my problem.

After of many tries of adding 2 more pins and many SMC and PRAM resets, my screen dims (like inverter's problem) when macbook starts.
The only way to open properly without dimming screen is when I reset SMC and start the macbook - and fan is go like crazy!!! (that's meaning not inverter's issue)
After that I thought to clean all contacts with isopropyl alcohol in any case.

I'm trying to find the problem that I caused and I believe that if:
1. it's a software issue: is about SMC resets etc
2. it's a hardware issue: is logic board power issue

Thank you very much.

Sorry for my English

P.S. I also give you some photos from
the logic board
battery / sleep sensor and
a video by laptop's behavior:

https://www.dropbox.com/sh/0spkzmkjetys4f1/AAC6aZezboQfm9P2iBRZfX8Xa?dl=0

 

[tsoump]

I'm thinking of buying a voltmeter and check some contacts.
Is there anybody who has the schematics and the board view?

Thanks in advance

 

[tsoump]

Is it appropriate to bake the logic board for 10' at 200 Celsius in the oven?

 

[tsoump]

I made to bring the backlight on screen back!

I've got a multimeter , I also found the schematics and I was trying to calculate the contacts on the logic board nearby the Inverter.

By mistake, I brought together two contacts,t he L9400 and the neighbor of it and suddenly I got the light back on the screen!!

I do not know if this is a proper way, but I'm thinking of putting a conductive metal between them.

Check the photos !!

Let me know if it seems appropriate.

Thanks in advance