November 16, 2006
6881094C31-E
4-4
Troubleshooting Procedures:
Standard Bias Table
4.4
Standard Bias Table
outlines some standard supply voltages and system clocks which should be present under
normal operation. These should be checked as a first step to any troubleshooting procedure.
Table 4-2. Standard Operating Bias
Signal Name
Nominal Value
Tolerance
VOCON Board Source
13 MHz
13 MHz
±1000 ppm
C303 (NTN9564)
C339 (NNTN4563, NNTN4819 &
NNTN4717)
FLIP_32K
32.768 kHz
±400 ppm
U302, pin2
(under shield SH102
on NNTN4563, NNTN4819 &
NNTN4717)
SINE32K
32.768 kHz
±400 ppm
C313 (NTN9564)
C306 (NNTN4563, NNTN4819 &
NNTN4717)
CKIH
16.8 MHz
R452
(under shield SH101 on NNTN4563,
NNTN4819 & NNTN4717 or
test fixture pin 7 on the
board-to-board connector)
16_8MHz
16.8 MHz
C452
(under shield SH101
on NNTN4563, NNTN4819 &
NNTN4717)
POR
3.0 Vdc
±5%
POR test point
RESET_OUT
3.0 Vdc
±5%
RESET_OUT test point (NTN9564)
D401, pin 3 (NNTN4563, NNTN4819 &
NNTN4717)
VSW1
3.85 Vdc
±5%
R502
VSW2
1.85 Vdc
±5%
R501
7.5 Vdc
6.0-9.0 Vdc
C523
V2
3.0 Vdc*
2.9 Vdc**
±5%
R560
7.5 Vdc
6.0-9.0 Vdc
R581
7.5 Vdc
6.0-9.0 Vdc
B104
SW_B+
7.5 Vdc
6.0-9.0 Vdc
R587
VCC5
5.0 Vdc
±5%
R503
VSW_1_55 V
1.55 Vdc
±5%
R407 (NNTN4717 VOCON kit only)
* = NTN9564, NNTN4563, & NNTN4819 VOCON kits
** = NNTN4717 VOCON kit
Summary of Contents for ASTRO XTS-5000
Page 7: ...vi Table of Contents November 16 2006 6881094C31 E Notes ...
Page 11: ...x List of Figures November 16 2006 6881094C31 E Notes ...
Page 17: ...November 16 2006 6881094C31 E xvi CommercialWarranty Notes ...
Page 31: ...November 16 2006 6881094C31 E xxx Portable Radio Model Numbering System Notes ...
Page 83: ...November 16 2006 6881094C31 E 3 44 Theory of Operation Encryption Module ...
Page 135: ...November 16 2006 6881094C31 E 5 44 Troubleshooting Charts Secure Hardware Failure Notes ...
Page 175: ...November 16 2006 6881094C31 E 7 32 Troubleshooting Tables List of Board and IC Signals Notes ...
Page 367: ...November 16 2006 6881094C31 E Glossary 10 Notes ...
Page 373: ...Index 6 November 16 2006 6881094C31 E Notes ...