Pwr Button Fault - Nokia NME-2A Series Troubleshooting Instructions

NME–2A
Troubleshooting Instructions

PWR Button Fault

Check V106, L100
Change N100
NO
NO
D250/pin 5,42 VL1
+5 V When XPWRON
is push high
YES
Check D250,
D300
Page 10
Nothing happends
when PWR button
is pressed
N100/PSL pins
5,20 +6.2 V When either
XPWRON is low or
IGNS is high
YES
N100/PSL
pin 9/XPWROFF pulses
from 0 to +5 V after
power on
YES
Check VL1, VL2, VA2, VREF
if OK then change N100
Technical Documentation
Check N101 pin 2
+6.2 V if not OK
change N101
NO
NO
N101/pin 4
VBATT voltage
YES
V110 gate
is 0V
YES
Check V101
if OK change V110
P.A.M.S.
Check
V102, V103,
V104, R109,
NO
R110, R111,
R113, R133,
R134, C100
C112, C124
R143, V107
R100, R124
Original 08/97