6871620L01-C
May 28, 2008
Troubleshooting Tables:
List of Board and IC Signals
7-17
AA10
Address 21
No
U11
Address 22
No
U10
Address 23
No
AB3
Data 15
E1125
Yes
AA3
Data 14
E1124
Yes
AB4
Data 13
E1123
Yes
AA4
Data 12
E1122
Yes
Y5
Data 11
E1121
Yes
AA5
Data 10
E1120
Yes
AA6
Data 9
E1119
Yes
Y6
Data 8
E1118
Yes
Y7
Data 7
E1117
Yes
AA7
Data 6
E1116
Yes
AB7
Data 5
E1115
Yes
AB8
Data 4
E1114
Yes
AA8
Data 3
E1113
Yes
Y8
Data 2
E1112
Yes
Y9
Data 1
E1111
Yes
AA9
Data 0
E1110
Yes
Y18
R_W_N
E1129
Yes
U14
CS5
R1467
Yes
Y19
CS4_N
No Connect
No
AA20
CS3_N
E1127
Yes
AB20
CS2_N
Pin B4 of U1409
No
AA16
CS1_N
No Connect
No
AA21
CS0_N
Pin E7 of U1410
No
U21
OE_N
Pin A2 of U1409
No
V21
EB1_N
Pin A1 of U1409
No
AA18
EB0_N
Pin B2 of U1409
No
V20
SEB_N_PA5
No Connect
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: ......