MOTOROLA CONFIDENTIAL - PROPRIETARY
48
November 20, 2000
6881036B20
Troubleshooting
Product Family 38C
000794-O
Figure 33. No Power Up Using Battery
000795-O
Figure 34. Device Draws Current When Powered Off
Check in order:
J604
,
Q901
,
J600
,
on/off contacts, and
U900
.
See Note 1
Note 1: Check components for correct
orientation, cold solder joints, physical
damage, and functionallity.
Check the following supply lines for any short to ground or
different resistences comparing with a good PCB:
B+ on
C915
V_BOOST1 on
C913
V_REF on
C919
V1 on
C906
V2 on
C939
V3 on
C910
VSIM1 on
C905
.
If you found differences, check the components which
use that Voltage.
If you don't find any difference, send PCB to HTC
Note 1 : Check components for correct orientation,
cold solder joints, physical damage, and functionality.
Note 1: Check components for correct
orientation, cold solder joints, physical
damage, and functionallity.
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: ......