May 28, 2008
6871620L01-C
7-20
Troubleshooting Tables:
List of Board and IC Signals
F11
VBUS2_SENS
No Connect
No
H10
VBUS1
No Connect
No
C14
VBUS1_CMD
No Connect
No
E12
VBUS1_SENS
No Connect
No
B13
VBUS_SUPPLY
No Connect
No
K4
V08_O
VCC5
5V
Yes
K3
V08_I
SWB+
Battery Voltage
Level +/- 5%
Yes
L9
V10_GND
GROUND
No
M6
V10_O
C1321
Yes
J10
V10_I
C1333
Yes
L1
V09_O
C1322
Yes
P6
V07_O
C1323
Yes
P3
V06_O
V2
2.89V
Yes
N5
V04_O
C1326
Yes
P4
V03_O
V1.55
1.55V
Yes
N4
V02_O
V1.875
1.875V
Yes
F12
SW5_VOUT
No Connect
No
G11
SW5_PHASE
No Connect
No
E13
SW5_SUMCOMP
No Connect
No
E14
SW5_VSENSE
No Connect
No
F13
SW5_VDDHV
No Connect
No
D13
SW5_VDD
No Connect
No
L14
SW2_GND
GROUND
No
J13
SW2_VOUT
VSW2
1.875V
Yes
J14
SW2_LX
VSW2
1.875V
Yes
K14
SW2_VCCS
VSW1
3.8V
Yes
J12
SW2_VCC
R1317
Yes
H14
SW1_GND
GROUND
No
H12
SW1_VOUT
VSW1
3.8V
Yes
F14
SW1_PHASE
L1306
229.682 kHz
Square Wave
Yes
H13
SW1_DH
No Connect
No
Table 7-8. U1304 MAKO Pinouts (Continued)
U1304
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: ......