Motorola 38C V100 Service Manual page 56

Troubleshooting
®
Figure 39. VibraCall Not Functioning
52
START
Put the device in
test mode and enter
1590#
Is there 2.7 Volts on
Pin 1 of U501?
YES
Check U501 (there must be
about 1.3 Volts on Pin 4)
and M1.
MOTOROLA CONFIDENTIAL - PROPRIETARY
November 20, 2000
NO
Check U800
Note 1 or Faulty
Note 1: Check components for correct
orientation, cold solder joints, physical
damage, and functionallity.
Product Family 38C
000800-O
6881036B20