Motorola ASTRO XTS 5000 Detailed Service Manual

6881094C31-E November 16, 2006
Troubleshooting Charts: DC Supply Failure 5-9
DC Supply Failure—Page 3
MAEPF-27393-C
Voltage
= 5.0V+/-5%?
Check Voltage
at pin 5 of
U505 (VOCON)
No No
NoNo
No No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
3
Check 700-800:
E6, C15, C16,
C17, and D2
VHF and UHF R2:
E6, C6, C8,
and D2
Voltage
= V2?*
Components
OK?
Check R503,
D501, C509,
C510, and C508
Replace
Problem
Component
Replace
700-800: U505
VHF and
UHF R2: U1
Replace
Problem
Component
Components
OK?
Check Voltage
at TP7
Check Voltage
at TP6
Replace
U2
Check Voltage
at TP5
Check
700-800: D1, E5,
C12, C13, and C14
VHF and UHF R2:
E5, C3, C4,
C5, and D1
Check Voltage
at TP3
Replace
U3
End
Replace
U1
Voltage
= 5.0V+/-5%?
Replace
Problem
Component
Voltage
= V2?*
No
Is unit
VHF and
UHF R2?
Components
OK?
Replace
Problem
Component
Check
700-800: D3, R704,
C19, and C20
VHF and UHF R2:
E7, C9, C10,
C11, and D3
Components
OK?
No No
Yes
Yes
Replace
U5
Voltage
= V2?*
Replace
Problem
Component
Check
E8, C18, C19,
C20, and D4
Components
OK?
* per Standard Bias Table
* per Standard Bias Table
* per Standard Bias Table

Motorola ASTRO XTS 5000 Specifications

General

Brand	Motorola
Model	ASTRO XTS 5000
Category	Portable Radio
Language	English