Motorola ASTRO XTS 5000 Detailed Service Manual page 87

Troubleshooting Charts: Display Failure (NNTN4563, NNTN4819, & NNTN4717 VOCON Kits)
Display Failure (NNTN4563, NNTN4819, & NNTN4717 VOCON Kits)
Page 2
6881094C31-D
1
Check P_S*
at J301, pin 4
Verify Signal
No
Path Integrity
V = 0 V?
and correct
Yes
Check RESET
at J301, pin 6
Verify Signal
No
V = V2?*
Path Integrity
and correct
* per Standard Bias Table
Yes
Check
REG_SEL
at J301, pin 7
Verify Signal
No
V = V2?*
Path Integrity
and correct
* per Standard Bias Table
Yes
Check CS at
J301, pin 5
Verify Signal
No
V = V2?* Path Integrity
and correct
* per Standard Bias Table
Yes
3
Yes
Problem
End
Resolved?
No
Yes
Problem
End
Resolved?
No
Yes
Problem
End
Resolved?
No
Yes
Problem
End
Resolved?
No
MAEPF-27506-A
July 21, 2004
5-9