How To Cut The Liteon PCB Traces

[BGAMods]

but then youd have to solder a jumper wire. damn the v-cut is so easy to do and takes about 10 seconds.

 

[scratchgonzo]

hey lads, I'm competent in flashing drives, done everyone but the 9000 series so this is my first time having to make the trace cuts. I know it's easy but it's a lot more un-nerving if I can get as much info as poss before I even start.

I'm gonna be using probe V2 with my CK3 Pro and glue from mod traders. It's this pad 101 that's troubling me, everyone saying v cut is the best option. Just 2 cuts in a v I'm assuming? I see that means you don't damage this pad 101 (the round silver thing) Yet the video shoes straight cut n seems easy enough. What's all this about grounding my board too?

basically what are the things you guys have learnt since doing em that I can learn without breaking things haha.

Still need to buy a sharp knife to do this too, anyone wanna recommend one?

 

[scratchgonzo]

Will these cuts be ok or do they have to be closer and joined like the jungle pic?

 

[BGAMods]

the idea of the v-cut is to isolate pad 101 from the trace. therefore of course the cuts have to join or youll have a gap in the middle and pad 101 wont be isolated(separated).

 

[scratchgonzo]

right I'm getting it now, so I guess them cuts would need to be a lil closer or if I did them there but joined would that be cool? Thanks man.

 

[BGAMods]

it doesnt have to be in the shape of a 'V'. as long as the pad is cut off from the trace then itll be fine. i cut a straight line across the bottom of the pad to isolate, same as whats in your picture before you put the red lines on.

 

[scratchgonzo]

ok, probs just go with a straight cut then, can you cut the pad at all or is that a no no?

 

[BGAMods]

avoid that mate as theyre quite fragile and if pad 101 comes off then youve got some issues that means youll need to solder wires in place to rebuild pad 101.

 

[scratchgonzo]

cool, so I'm gonna do nice straight cut to separate the circle from the line - "what could be easier?" haha

 

[scratchgonzo]

just bought 13pc knife set £2.99 from amazon - nice n cheap

 

[scratchgonzo]

also I have multimeter but don't really know what to do with it. Does anyone know what settings it need to be on so I can check as I go along n lower risk of me bodging this.

 

[scratchgonzo]

The dark green lines are the trace borders. You can cut those if you want.
Remember tho, the more you cut, the harder the repair.

I will be using the glue to do this. When you say the harder the repair? I know I don't want any glue to be touching them lines do I? I'm looking tho n the space between them lines is tiny I ain't sure I can cut just to the border edges. As long as you don't go all the way through the dark green is that cool? I'm talking bout pad 122 here

 

[scratchgonzo]

"oh no not him again" lmao

Well lads I'm glad to say I did this today with no problems. Took my time doing it (probs way more than needed ) But got there in end. Checked everything with Multimeter as I went along n used the glue to repair my cuts. I found pad 122 to be the hardest bit cos I was scared about going through the darker green trace walls but I did it and it's thanks to you guys helping me through. Thank you all!

 

[martynas931]

two last picture wuz shocking i think when i try put lt switch it look tragic but i am not so crappy at all how does people can do that to PCB ? , i think blind people can solder even better than those two peopole who had send these PCB to tea junkie