Troubleshooting Flow Chart
VHF1 (136
‐
174 MHz)
30
6.2
GPS Circuit
Replace U2002
Check resistors
R9006 and R9007
3.3 V output by U2002 is
normal?
Check UART port
Can the radio perform
positioning?
SIRF
Demo software on the
computer displays
communication status?
Start
Replace GPS
module
Check the antenna
Check peripheral
components of the
module
Poor RX signal
Connector is normal?
Active antenna is
damaged?
Replace active
antenna
Replace
connector
W9001
Replace the
antenna
Replace
damaged
components
Yes
Yes
Yes
Yes
Yes
No
No
Yes
Yes
Yes
No
No
No
No
6.3
Transmitter Circuit
Содержание MD652
Страница 1: ...DIGITAL MOBILE RADIO...
Страница 5: ...UHF1 400 470 MHz...
Страница 9: ...Product Controls UHF1 400 470 MHz 2 Bottom View No Part Name No Part Name 1 Label 3 Fan 2 Fan Cover...
Страница 15: ...Exploded View and Packaging Guide UHF1 400 470 MHz 8 3 2 Packaging Guide...
Страница 53: ...43 9 PCB View Front Panel PCB View Top Layer X...
Страница 54: ...44 Front Panel PCB View Bottom Layer...
Страница 55: ...45 Main Board PCB View Top Layer...
Страница 56: ...46 Main Board PCB View Bottom Layer...
Страница 106: ...VHF1 136 174 MHz...
Страница 110: ...Product Controls VHF1 136 174 MHz 2 Bottom View No Part Name No Part Name 1 Label 3 Fan 2 Fan Cover...
Страница 116: ...Exploded View and Packaging Guide VHF1 136 174 MHz 8 3 2 Packaging Guide...
Страница 154: ...43 9 PCB View Front Panel PCB View Top Layer...
Страница 155: ...44 Front Panel PCB View Bottom Layer...
Страница 156: ...45 Main Board PCB View Top Layer...
Страница 157: ...46 Main Board PCB View Bottom Layer...
Страница 207: ...1616300000360 11 2014 L07157 2014 Hytera Communications Corporation Limited Hytera Communications Corporation Limited...