PCG-71316L does not turn on

[khelane]

Hi

PCG-71316L
MBX-223
this device does not turn on.
PU19 gets hot. change it and hot gain.
check ohm PL17 / PL16
PL17 0.946k ohm
PL18 25k ohm
.....
i took out PL17 and again checked ohm . side on the ic PU19 ohm 10k or above but other side(consumer) PC199 : 0.946k ohm
when i enject 3.3volt in consumer side (PC199) for 1 second go high 0.18 amp and immediately 0 amp and not flow amp in circuit and not hot device .

in last sorry about my english .
tnx

[silentbogo]

Re: PCG-71316L does not turn on

Does PU19 get hot immediately after you plug in the charger or battery?
Did you check other rails (+5VALW_LDO, +12V)? Maybe PU9 is short?

[khelane]

Re: PCG-71316L does not turn on

Does PU19 get hot immediately after you plug in the charger or battery?
Did you check other rails (+5VALW_LDO, +12V)? Maybe PU9 is short?

yes when i plug charger pu19 immediately get hot.
+5VALW_LDO not shorted
+12 no shortd .
just +3VALW show low ohm 0.945k(anormal). side of pc199 or TP219

[khelane]

Re: PCG-71316L does not turn on

i enjected 3.3 volt in +3alw (pc199 or TP219) showing 0.18 amp for milisecond and go to 0 amp!
somebody have any idea?