May 28, 2008
6871620L01-C
7-2
Troubleshooting Tables:
List of Board and IC Signals
Table 7-2. J1 Mainboard to Keypad Flex and Display Module
J1 Pin
No.
Description
To/From
Accessible
on
Mainboard?
1
GND
GROUND
No
2
GND
GROUND
No
3
GND
GROUND
No
4
UC_KP_ROW6
C1107
Yes
5
NC
No Connect
No
6
UC_KP_ROW5
C1108
Yes
7
NC
No Connect
No
8
UC_KP_ROW4
C1109
Yes
9
GND
GROUND
No
10
UC_KP_ROW3
C1110
Yes
11
GND
GROUND
No
12
UC_KP_ROW2
C1111
Yes
13
COV_D14
E1124
Yes
14
UC_KP_ROW1
C1112
Yes
15
COV_D13
E1123
Yes
16
UC_KP_ROW0
C1113
Yes
17
GND
GROUND
No
18
UC_KP_COLUMN2
C1114
Yes
19
DISP_REG_SEL_A1
E1126
Yes
20
UC_KP_COLUMN1
C1115
Yes
21
VOUT
No Connect
No
22
UC_KP_COLUMN0
C1116
Yes
23
DISP_CS_SUB
E1127
Yes
24
V2.9
E1103
Yes
25
DISP_CS_MAIN
R9902
Yes
26
FLIP_SENSE
R1106
Yes
27
COV_D3
E1113
Yes
28
KP_PROG_BUTTON
R9914
Yes
29
COV_D4
E1114
Yes
30
UC_KP_LEDK
R9909
Yes
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: ......