Motorola ASTRO Digital Saber Service Manual page 84

START
NO
Good Power-
Error
Up Self Message?
Test?
YES
See Table T1;
NO
Go to Transmitter Is There
Power-up Self
TX Power?
Chart C.37
Check Error Codes
YES
NO Is TX
Go to No Transmit
Deviation
Audio Chart C.26
OK?
YES
NO Go to No Receiver
Receive
Audio Chart C.29
Audio?
YES
Is
Poor YES
R5
SINAD?
on?
NO
Button's NO
See Button Test
Functioning?
Chart C.20
YES
YES
Radio See Keyload
Keyload Failure Chart
Failure?
C.19
NO
END
MAEPF-24396-A
Chart 1 . 800MHz Radio Main Troubleshooting Chart
NO
YES
Display
Model?
YES
NO
Use RSS to
display
Error Messages
Error
YES
Message
on RSS?
NO
Either Bad Display.
(See Chart C.25), or
Radio Power-Up Failure
(See Chart C.3)
YES Go to No Receiver
RF Chart C.30
Go to DC Switch
NO
Chart C.35
START
Good
NO NO
Power-Up/
Self Test?
YES
NO
Go to Transmitter Is There
Chart C.38 TX Power?
YES
NO
Is TX
Go to No Transmit
Deviation
Audio Chart C.26
OK?
NO
Receive
Audio?
YES
YES
Poor
SINAD?
NO
Button's NO
Functioning?
YES
YES
Radio
Keyload
Failure?
END
Chart 2 . VHF/UHF Radio Main Troubleshooting Chart
10-2
NO
YES
Error Display
Message?
Model?
YES
NO
See Table T1; Use RSS to
Power-up Self display
Check Error Codes
Error Messages
YES Error
Message
on RSS?
NO
Either Bad Display.
Go to No Receiver
(See Chart C.25), or
Audio Chart C.29
Radio Power-Up Failure
(See Chart C.3)
Is
YES Go to No Receiver
R5
RF Chart C.30
on?
NO
Go to DC Switch
Chart C.36
See Button Test
Chart C.20
See Keyload
Failure Chart
C.19
MAEPF-24395-A