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Put in test mode the Pcb and digit
9823#, 110062#, 1215#, 310#.
Is TX_EN present on pin 3 of
Q120 ?
Is present the RFV2
signal on pin 1 of
Q120 ?
Is present and
correct the TX275
voltage on C1125 ?
Is present the
SFOUT voltage on
pin 4 of Q121 ?
Is present the
correct signal on
C1126 ?
(close Q2120)
Is present the
correct signal on pin
1 of Q2120 ?
Check Q2120
NOTE1 or Faulty.
mercoledì, gennaio 24, 2001
GPRS Tri Band T260 Level 3 procedure
For most of Signals Use a
Test PCB as reference.
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NOTE1 : check if any components mentioned are
correctly positioned , have not dry joint and aren't
- MOTOROLA Level3 Authorized -
Check U800
NOTE1 or Faulty.
Check the presence of VREF on
C213 from U900.
If It is OK check Q201 and U200
NOTE1 or Faulty.
If NOT OK check U900 NOTE1 or
Faulty.
Check Q120
NOTE1 or Faulty.
Check U200
NOTE1 or Faulty.
Check Q121
NOTE1 or Faulty.
Check U200
NOTE1 or Faulty.
not phisically damaged .
Rev.1
T260:
TX Control
Matrix
pag.11
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