Troubleshooting Charts:
Keyload Failure
5-25
5.8
Keyload Failure
KEYLOAD FAILURE
Synopsis
This failure relates to only secure equipped radios
and indicates a failure to load key with the KVL
indicated by the message “KEYFAIL” and keyfail
tones.
Typical failures would be :
1) Open between the GCAI connector and the
microprocessor which prevents the keyloading.
2) Use of the wrong KVL or keyload cable.
3) Failure of the secure circuitry.
4) No secure personality in the radio codeplug.
With KVL attached to radio
and radio on, verify display
message “KEYLOADING”
Correct
Equipment?
Activity?
Keyloading
Message”
displayed?
With KVL attached to the radio
and radio on, initiate a keyload
from the KVL and look for activity
on keyload signal at the P1000_4
connector on the GCAI Flex.
Obtain correct KVL
and cable
Yes
Yes
No
Yes
Verify GCAI data path.
Check the following
signals: GPIO4, One Wire
Repair connector using
programming failure
flowchart for details.
No
No
Inspect GCAI
flex to board
connections and
Replace GCAI
Flex if
necessary
With KVL attached to the radio
and radio on, initiate a keyload
from the keyloader and look
for activity on keyload signal at
P1000_21 on Front Kit Flex.
Activity?
Replace Front Kit
Flex
Yes
Check signal at
R2358 on main board
Activity?
Inspect
U4003.
Measure
power pin5?
No
V = ~5.0V?
No
Proceed to
DC Flow
chart
Inspect U4003
with keyloader
attached.
Measure mux
select pin6.
V = ~0V
Inspect Q4001 with
keyloader attached .
Measure BJT input pin2.
No
Yes
Replace U4003
V = ~1.8V
No
Yes
Replace main
Board
Replace Q4001
Yes
Initiate a keyload
and check for
activity at R2501 of
main board
Yes
Activity?
No
Check the signal
Validity
Replace U2510
Yes
No
Содержание Astro APX 3000
Страница 1: ...APXTM TWO WAY RADIOS APX 3000 DETAILED SERVICE MANUAL ...
Страница 2: ......
Страница 4: ...Notes ...
Страница 6: ...vi Document History Notes ...
Страница 10: ...x Table of Contents Notes ...
Страница 12: ...xii List of Tables Notes ...
Страница 18: ...xviii List of Figures Notes ...
Страница 22: ...xxii CommercialWarranty Notes ...
Страница 46: ...3 20 Theory of Operation Main Board Notes ...
Страница 84: ...3 58 Theory of Operation Bluetooth Notes ...
Страница 147: ...Troubleshooting Waveforms Clocks 6 3 6 2 2 4 MHz Clock Trace 1 Trace recorded at R6113 Figure 6 2 4 MHz Clock Waveform ...
Страница 154: ...6 10 Troubleshooting Waveforms Audio SSI 6 3 4 BCLK Trace 1 Trace recorded at R6107 Figure 6 9 Audio SSI BCLK Waveform ...
Страница 156: ...6 12 Troubleshooting Waveforms RX SSI 6 4 2 DA Trace 1 Trace recorded at R2805 Figure 6 11 RX SSI DA Waveform ...
Страница 157: ...Troubleshooting Waveforms RX SSI 6 13 6 4 3 FSYNC Trace 1 Trace recorded at R2804 Figure 6 12 RX SSI FSync Waveform ...
Страница 159: ...Troubleshooting Waveforms TX SSI 6 15 6 5 2 DA Trace 1 Trace recorded at R2817 Figure 6 14 TX SSI DA Waveform ...
Страница 160: ...6 16 Troubleshooting Waveforms TX SSI 6 5 3 FSYNC Trace 1 Trace recorded at R2807 Figure 6 15 TX SSI FSync Waveform ...
Страница 161: ...Troubleshooting Waveforms SPI 6 17 6 6 SPI 6 6 1 CLK Trace 1 Trace recorded at R2803 Figure 6 16 SPI CLK Waveform ...
Страница 162: ...6 18 Troubleshooting Waveforms SPI 6 6 2 CS Trace 1 Trace recorded at R6602 Figure 6 17 CS Waveform ...
Страница 164: ...6 20 Troubleshooting Waveforms I2C BUS 6 7 2 SCL 5V Trace 1 Trace recorded at R2204 Figure 6 19 I2C Bus SCA 5V Waveform ...
Страница 165: ...Troubleshooting Waveforms I2C BUS 6 21 6 7 3 SDA Trace 1 Trace recorded at R6209 Figure 6 20 I2C Bus SDA Waveform ...
Страница 169: ...Troubleshooting Waveforms USB 6 25 6 10 USB 6 10 1 D Trace 1 Trace recorded at TP F_GCAI_USB Figure 6 24 USB D Waveform ...
Страница 170: ...6 26 Troubleshooting Waveforms USB 6 10 2 D Trace 1 Trace recorded at TP F_GCAI_USB Figure 6 25 USB D Waveform ...
Страница 172: ...6 28 Troubleshooting Waveforms SDRAM 6 11 2 CLKX Trace 1 Trace recorded at TP6308 Figure 6 27 SDRAM CLKX Waveform ...
Страница 208: ...6 64 Troubleshooting Waveforms LF CW on Spectrum Analyzer Notes ...
Страница 222: ...7 14 Troubleshooting Tables List of Board and IC Signals Notes ...
Страница 282: ...8 60 Schematics Boards Overlays and Parts Lists Main Board Block UHF1 84012513001_A Notes ...
Страница 338: ...8 116 Schematics Boards Overlays and Parts Lists Main Board Block 700 800 MHz 84012501002 Notes ...
Страница 390: ...8 168 Schematics Boards Overlays and Parts Lists Main Board Block VHF 84012512001_A Notes ...
Страница 456: ...9 8 Debugging Fixture Powering up Covert Board Notes ...
Страница 468: ...Glossary 10 Glossary Notes ...
Страница 472: ...Index 4 Index Notes ...
Страница 473: ......