User Guide

PAMS
Technical Documentation
RAE-3
8. Troubleshooting
Page 8 – 57
Issue 1 06/01
Turn the phone power on
Open the lid
Open Wintesla
Select Testing –>ADC Readings
Wintesla:
Lid Open OK
(cover
detection
state
1) ?
Place magnet above the TAB key,
note: pole toward the key !
then
wait Refresh from Wintesla
N301
pin 1
(Hall supply volt)
2.8V ?
Check
V301, C322
Use serv.jig
magnet
Out–
put toggle
of V301 pin 3
low state
(<0.3V)
?
Wintesla:
Lid Closed OK
(ADC reading
Cover
switch=
”0”
Check
V301,
(solders) R302
If OK,
replace V301
Lid switch
OK?
Check/replace
magnet
in the lid
Check
Hall supply volt.
level at V301 pin 1
(VBB) 2.8V
OK?
Use serv.jig
magnet
Check
V301, C322
Out–
put toggle
of V301 pin 3
high
?
Faulty
circuit
D300
(MAD)
or
Faulty PWB
Check
V301 solders
Short
circuit inC323 ?
R302:
high voltage level
(2.8V) at both
ends?
Check trace between
V301 pin3 and R302
Replace V301
Lid
switch
trouble–
shooting
OK
NO
YES
NOYES
YES
NO
NO
YES
YES
NO
YES
NO
NO
ASSEMBLED DEVICE
DEVICE IN JIG
Figure 42.