6871620L01-C
May 28, 2008
Troubleshooting Tables:
List of Board and IC Signals
7-21
G14
SW1_SUMCOMP_DL
C1337
229.682 kHz
Square Wave
Yes
J11
SW1_VSEN_BST
No Connect
No
H11
SW1_VSEN_BUK
C1336
Yes
G12
SW1_VDDHV
C1341
Yes
G13
SW1_VDD
C1335
Yes
A2
PGLDO3
C1307
Yes
C3
PGLDO2
GROUND
No
B14
NC6
No Connect
No
M5
NC5
No Connect
No
P14
NC4
No Connect
No
P14
NC3
No Connect
No
A14
NC2
No Connect
No
A1
NC1
No Connect
No
B11
AD_TRIG
Pin B4 of U1401
No
A11
TX_RX
No Connect
No
L2
MIC_BIAS
R1324
5V
Yes
K2
INT_MIC_P
C1350
AC Mic signal
Yes
K1
INT_MIC_M
C1352
AC Mic signal
Yes
J2
EXT_MIC_P
C1347
AC Mic signal
(Accessory)
Yes
J1
EXT_MIC_M
C1353
AC Mic signal
(Accessory)
Yes
J3
VCM1
C1354
Yes
H3
VC_OUT_P
R1326
Yes
H2
VC_OUT_M
R1327
Yes
E3
BPLUS
Battery Voltage
Level
Yes
E1
PA_BPLUS
R1328
Yes
G3
PA_IN_M
C1357
Yes
G2
PA_IN_P
C1356
Yes
F1
INT_SPKR_P
C72
Yes
F2
INT_SPKR_M
C71
Yes
H1
EXT_SPKR_P
SPK+ (TP)
*
Yes
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: ......