7-54
Troubleshooting Tables:
List of Board and IC Signals
G1
N/C
–
G2
GROUND
N/A
G3
N/C
–
G4
N/C
–
G5
N/C
–
G6
N/C
–
G7
N/C
–
G8
SSI_MACE_CODEC_CLK
N/A
G9
SSI_MACE_CODEC_CLK
N/A
H1
VCC_3.0A
C6413, C6414, R6567, C6574
H2
GROUND
N/A
H3
N/C
–
H4
N/C
–
H5
N/C
–
H6
N/C
–
H7
N/C
–
H8
RST_OUT
J2301_Pin 22
R2217
C9
VCC_CODEC (VCC_1.875)
J4001_Pin 28, J1001_Pin 6,
R1010, C4001
R6411, C6410, C6411, R6560,
C6581, R6410
J1
VCC_3.0A
C6413, C6414, R6567, C6574
J2
N/C
–
J3
N/C
–
J4
PRE_CLASS_D_POS
J4001_Pin 47
R6414, C6417
J5
PRE_CLASS_D_NEG
J4001_Pin 45
R6415, C6417
J6
PREAMP_POS
R6416, C6416, C6418
J7
PREAMP_NEG
R6417, C6416, C6419
J8
N/C
–
J9
CODEC_GPIO1
CODEC_GPIO1 Test Point
Note:
N/A = Non Accessible
Table 7-17. U6405 CODEC Pinouts (Continued)
U6405
Pin No.
Description
Probe Points
Not Shielded
Under Shield
Summary of Contents for ASTRO APX 7000
Page 1: ......
Page 4: ...iv Document History Notes ...
Page 24: ...2 4 Radio Power DC Power Routing VOCON Board Notes ...
Page 98: ...3 74 Theory of Operation Global Positioning System GPS ...
Page 163: ...Troubleshooting Charts PA Failure 5 59 ...
Page 164: ...5 60 Troubleshooting Charts PA Failure ...
Page 276: ...7 58 Troubleshooting Tables List of Board and IC Signals Notes ...
Page 318: ...8 42 Schematics Boards Overlays and Parts Lists Transceiver RF Boards VHF 700 800 Notes ...
Page 380: ...8 104 Schematics Boards Overlays and Parts Lists Transceiver RF Boards UHF1 700 800 MHz Notes ...
Page 432: ...8 156 Schematics Boards Overlays and Parts Lists Transceiver RF Boards UHF1 VHF Notes ...
Page 458: ...8 182 Schematics Boards Overlays and Parts Lists Transceiver RF Boards UHF1 UHF2 Notes ...
Page 498: ...8 222 Schematics Boards Overlays and Parts Lists Transceiver RF Boards UHF2 700 800 MHz Notes ...
Page 546: ...8 270 Schematics Boards Overlays and Parts Lists Transceiver RF Boards UHF2 VHF Notes ...
Page 606: ...8 330 Schematics Boards Overlays and Parts Lists VOCON Boards Notes ...
Page 638: ...Glossary 10 Glossary Notes ...
Page 643: ......