May 28, 2008
6871620L01-C
7-12
Troubleshooting Tables:
List of Board and IC Signals
H17
LVDD
V2
2.89V
Yes
L7
KVDD
V2
2.89V
Yes
R8
J2VDD
V2
2.89V
Yes
N8
J1VDD
V2
2.89V
Yes
J7
I2VDD
V2
2.89V
Yes
G7
I1VDD
V2
2.89V
Yes
G9
H2VDD
V2
2.89V
Yes
G10
H1VDD
V2
2.89V
Yes
G13
EVDD
V2
2.89V
Yes
T17
DVDD
V2
2.89V
Yes
G15
C2VDD
V2
2.89V
Yes
J17
C1VDD
V2
2.89V
Yes
M17
B2VDD
V2
2.89V
Yes
R17
B1VDD
V2
2.89V
Yes
U17
A5VDD
V1.875
1.875V
Yes
U15
A4VDD
V1.875
1.875V
Yes
U13
A3VDD
V1.875
1.875V
Yes
U9
A2VDD
V1.875
1.875V
Yes
U8
A1VDD
V1.875
1.875V
Yes
C2
VCCA
V1.55
1.55V
Yes
D2
GNDA
GROUND
No
T10
A1VSS
GROUND
No
T11
A2VSS
GROUND
No
T14
A3VSS
GROUND
No
U16
A4VSS
GROUND
No
T15
A5VSS
GROUND
No
N16
B1VSS
GROUND
No
K16
B2VSS
GROUND
No
J16
C1VSS
GROUND
No
H13
C2VSS
GROUND
No
Table 7-7. U1401 Patriot MCU/DSP IC Pinouts (Continued)
U1401
Pin No.
Description
To/From
Comment
Accessible
on
Mainboard?
Summary of Contents for ASTRO XTSTM 4000
Page 1: ...COLOR CHORDS 7 ASTRO XTSTM 4000 Portable Radio Detailed Service Manual ...
Page 2: ......
Page 16: ...May 28 2008 6871620L01 C xiv Commercial Warranty Notes ...
Page 22: ...May 28 2008 6871620L01 C 1 6 Introduction Notes ...
Page 26: ...May 28 2008 6871620L01 C 2 4 Radio Power Notes ...
Page 56: ...May 28 2008 6871620L01 C 3 30 Theory of Operation Notes ...
Page 100: ...May 28 2008 6871620L01 C 6 8 Troubleshooting Waveforms Notes ...
Page 194: ...May 28 2008 6871620L01 C B 2 Motorola Service Centers Notes ...
Page 204: ...May 28 2008 6871620L01 C Glossary 10 Glossary Notes ...
Page 209: ......