Motorola T189, Service Manual, Page: 79 / 88

Page 16 - MOTOROLA CONFIDENTIAL PROPRIETARY -
Dual band Taishan level 3 debug rev 1.0
Taishan:
NO
CHARGER
Is thermistor problem ?
(check it using gate22
processing test)
START
Is there 2,7Volt on
BATT_THERM
terminal on pin 2 of
J604 ?
Check Q914 and U905
NOTE1 or Faulty.
Without battery, Is there
2,7Volt on pin1 of U905 ?
(with battery it must be
0Volt).
Check U905 and Q908
NOTE1 or Faulty.
Check U800 NOTE1
or Faulty.
Put the phone in
test mode and
digit 500255#
Is there on pin3 of
Q900 about EXT_B+
voltage ?
Check R913
Is there 0Volt on pin4
of Q900 ?
Check U900 NOTE1
or Faulty.
Is there about EXT_B+
voltage on pin4 of J604
Check Q900 NOTE1
or Faulty and J604
NOTE1.
Check for intermittent
problem.
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
NOTE1 : check if any components mentioned are
correctly positioned , have not dry joint and aren't
not phisically damaged .