SYN-TECH III P25 PORTABLE RADIO
SERVICE MANUAL
6-1
6 ILLUSTRATED PART LISTS
After changing the RF and Control Board (p/n: 5999–9937-2114PB), all the tests explained in section 4.4
must be performed on the radio.
After disassembly and reassembly of the radio, the following functional tests and controls must be done
while radio is powered on:
• Keypad, channel knob, on/off volume knob tests.
• Send and Receive tests.
o Send Test: Listening for voice on the other radio.
o Receive Test: Listening for voice from loudspeaker.
o Transmit / receive LED Control. (LED must be turned on)
• PTT and Side button control tests. (Side buttons are enabled/disabled in MRP_P25.)
• Optional Accessories Jack Control. Connect your radio to the PC with programming cable
and check the communication using MRA.exe program. (The Serial Port under the
“Settings” Menu must be set to “data” to connect with your computer.)
Syn-Tech III P25 Portable Radio Illustrated Parts Lists are given in this section.
Please use part numbers for ordering.
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