MOTOROLA CONFIDENTIAL - PROPRIETARY
40
November 20, 2000
6881036B20
Troubleshooting
Product Family 38C
000801-O
Figure 24. Receiver VCO Band Select
L
PCS_SEL and DCS_SEL
(from Magic IC)
are present on
Q1100
Pin 3
and
Pin 1
?
NO
NO
NO
YES
YES
YES
Check
Q1100
See Note 1
Check
U200
and
Q100
See Note 1
Check
U903
and
U904
See Note 1
Check for
intermittent
operation.
See Note 1
RVCO_PCS and RVCO_DCS
are present on
Q1100
Pin 4
and
Pin 6
?
-5V is present
on
R103
?
Note 1: Check components for correct
orientation, cold solder joints, physical
damage, and functionallity.
In most cases, a reference board can be
used to compare signals.
Summary of Contents for 38C V100
Page 1: ...Level 3 Service Manual Model V100 GSM Technology Product Family 38C Personal Communicator ...
Page 2: ......
Page 73: ...V100 BOARD LAYOUT PAGE 1 2 ...
Page 74: ...V100 BOARD LAYOUT PAGE 2 2 ...
Page 77: ...V100 CONNECTOR SCHEMATICS ...
Page 78: ...V100 DISPLAY SCHEMATICS ...
Page 79: ...V100 FM SCHEMATICS ...
Page 81: ......
Page 83: ......