3209 trackpad

[wirelessplanet]

The mouse is really laggy/glitchy. you move it at it appears in a new spot, does not glide if that makes sense. works fine with usb mouse. i've replaced bottom case (keyboard, trackpad and flex cable) and still has same issue. smc reset and pram reset did not solve either.

the computer initially came in with does not power on. i did an smc reset and that fixed it, but now mouse issues. no liquid or physical damage.

 

[2informaticos]

Post exact voltage for J5700, pins 1, 10, 13.
Also check solders and resistors around U5700.

 

[wirelessplanet]

Pin 1 - 3.316
pin 10 - 5.012
Pin 13 - 3.419

 

[2informaticos]

Check connections from MLB to trackpad cicuitry.
This will discard bad contacts on the IPD connector...

 

[wirelessplanet]

1- 3.06
10-5.095
13-3.422 (this was the pp3v42 line)

tested on the trackpad itself

 

[2informaticos]

Check all connections between the MLB and trackpad board.
Continuity, on buzzer mode, or ohm scale.

 

[wirelessplanet]

all point have continuity . ive replaced the trackpad and flex as well. was the first thing i did.

 

[2informaticos]

Did you try other battery?
How it works without battery, on charger only?

Also try your USB test OSX; disconnect internal SSD.

 

[wirelessplanet]

was testing without battery, charger only. haven't tried external osx

 

[2informaticos]

Still the same issue with known good battery connected?

 

[wirelessplanet]

tried with new battery and fresh os on external drive. same issue.

Pin - MLB - Trackpad

1 - 3.31 - 3.29
2- 3.29 - 3.27
3 - 0 - 0
4- 0 - 0
5- 3.09 - 3.1
6- 0 - 0
7- 0 - 0
8- 3.29 - 3.28
9- 3.29 - 3.28
10- 5.09 - 5.09
11- 3.42 - 3.42
12- 3.42 - 3.42
13- 3.42 - 3.42
14- 3.42 - 3.42



saw pin 6 is 0, so i changed u5700 and same issue. still 0v

 

[wirelessplanet]

any ideas?

 

[2informaticos]

Pin 6 is OK with 0V, as it is D- line of an USB.

Does the keyboard work correctly?

 

[wirelessplanet]

yes keyboard works fine

 

[wirelessplanet]

any update?

 

[2informaticos]

Run corresponding EFI ASD and see if any error pops out.