820-3662 - REPLACED BATTERY WORKED, 1 WEEK LATER DEAD

[ipcrepair2]

820-3662 - Replaced battery and customer took it all worked perfectly fine, and about 1-2 weeks later came back no light or life at all,
please help, thank you will reply fast as this customer is a bit mad and trying to see what i should do,

Thank you guys in advance,


D7005 PIN 1- 16.57V PIN 2- 2.49V PIN 3 - 16.33V

PM_SLP_SUS_L - 0V

PM_RSMRST_L - 0V

PM_BATLOW_L - 0V

RTC_RESET_L - 3.4V

PCH_DSWVRMEN - 3.3V

PCH_INTVRMEN - 0.22V

PCH_SRTCRST_L - 3.4V

PCH INTRUDER_L - 3.12V



SMC_BC_ACOK - 0V


PPBUS_G3H - 2.19V

PPDCIN_G3H - 2.4V

PPDCIN_G3H_ISOL - 16.7V

PP3V42_G3H - 3.42v

PP5V_S5 - 0.18V

PP5V S4- 0.18V

PP3V3_S5 - 3.29V

PP3V3_S4 - 0V

PP1V35_S3 - 0V

 

[2informaticos]

"PCH_INTVRMEN - 0.22V"
I suppose you've meant PCH_INTVRMEN_L; please right the signal names correctly.
If R1100 is good, you may have a PCH problem.

Heat PCH with quality flux.
If still low, force the signal with 1K, instead of 330K.
PCH will not work if you don't get at least 2.2V there.

You also have a problem with PPBUS_G3H, not related with PCH.
Check diode mode to ground at F7140.

 

[ipcrepair2]

sorry for not being as knowledgeable. how do I force the signal with 1K, instead of 330K.

 

[2informaticos]

Remove 330K resistor and replace with 1K...

 

[ipcrepair2]

i was able to heat up the PCH and i am getting 3.3V on PCH_INTVRMEN_L

diode mode on F7140 without f7140/41 pin 1 0.472 pin 2 going up and up, i am guessing short NOT on system side?

 

[2informaticos]

Does it turn on now?