May 28, 2008
6871620L01-C
7-4
Troubleshooting Tables:
List of Board and IC Signals
Table 7-3. J2 Mainboard to UCM, CE and Audio Jack Board
J2
Pin No.
Description
To/From
Accessible
on
Mainboard?
1
GND
GROUND
No
2
FU_B+
F901
Yes
3
GND
GROUND
No
4
UC_KEYFAIL_LH_BDMDATA
R1344
Yes
5
UC_WAKEUP
Pin N3 of U1401
No
6
SW_B+
C1118
Yes
7
UC_INT_MIC
C73
Yes
8
UC_I
C72
Yes
9
UC_INT_SPKR-
C71
Yes
10
V_VIBE
R735
Yes
11
UC_UCM_SS
R1101
Yes
12
UC_ENC_SSI_CLK
R1335
Yes
13
UC_ENC_SSI_DI
R1338
Yes
14
UC_ENC_SSI_DO
R1337
Yes
15
CE_OPT_SEL2
OPTSEL2 (TP)
Yes
16
_VPP
OPTB+_VPP (TP)
Yes
17
CE_RS232D
RS232DOUT (TP)
Yes
18
CE_RS232DOUT_USB-
RS232DIN (TP)
Yes
19
CE_CTS
CTS (TP)
Yes
20
CE_RTS
RTS (TP)
Yes
21
CE_OPT_SEL1
C55
Yes
22
UC_RESET_ENC
R1406
Yes
23
CE_LHDATA_KEYFAIL
LHDATA_KEYFAIL (TP)
Yes
24
CE_SPKRCOM
SPKR_COM (TP)
Yes
25
SPK+ (TP)
Yes
26
AUD_JACK_MIC
EXT_MIC (TP)
Yes
27
AUD_JACK_SPKR_OUT
R9999
Yes
28
AUD_JACK_PTT
C53
Yes
29
AUD_JACK_INT
R9998
Yes
30
GND
GROUND
No
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: ......