Motorola ASTRO Digital Saber - Page 97

10-15
Chart 25 . No Display
Replace U204.
Synopsis
This chart relates to a failure
in the display. The display is
considered not field repairable
and must be replaced as a uint.
Basic Failure modes are as
follows:
1) Non-display model radio.
2) Bad connection.
3) Defective µC.
No Display.
Verify display model
with RSS.
Verify signal activity on
J601-2 and J601-1
during mode select
changes.
Activity?
Verify J601
connections and bias.
Yes
Yes
No
No
Wrong model?
Fix with RSS.
Yes
No
J601 checks?Repair J601.
MAEPF-24403-A
Replace display
module.