Adjustment; Echolink Operation Check Method; Main Mpu/Panel Mpu/Tnc Mpu Version - Kenwood TM-D710A Service Manual

EchoLink Operation Check Method

You can confirm whether the terminal for EchoLink
operates normally by performing the following three
operation checks.
1. Squelch signal operation check
2. PTT signal operation check
3. Voice operation check
■ Operation procedure
1) Connect the serial communications cable (8-pin mini
DIN terminal and D-SUB terminal) of the PG-5H (PC
interface cable kit) to the PC terminal on the rear of the
transceiver.
2) Turn the transceiver power ON while pressing the [PF2]
key, to enter the EchoLink Sysop mode.
3) Check the squelch signal operation.
q The squelch signal is output from pin 1 of the
transceiver PC terminal or pin 8 of the PG-5H D-SUB
terminal (RTS). Check the voltage of the RTS line with
a digital voltmeter.
PC terminal of
Terminal name
the transceiver
RTS pin 1
CTS pin 2
PG-5H
Serial communications cable pin configuration
GND line
RTS line
CTS line
w When you open and close the transceiver squelch,
check that the voltage of the RTS line increases and
decreases.
(Reference voltage value of RTS line)
Voltage when squelch is closed: 10 V
Voltage when squelch is opened : -10 V
4) Check the PTT signal operation.
q Input 5 to 10 V to pin 2 of the transceiver PC terminal
or pin 7 of the PG-5H D-SUB terminal (CTS).
w Ensure that the transceiver becomes the transmission
state.
5) Check the voice operation.
q Connect the data communications cable (6-pin mini
DIN terminal and pink/ green pin) of the PG-5H
(Interface cable kit) to the DATA terminal on the rear
of the transceiver.
w Input a 1kHz/ 150 mV AF signal from AG to the green
pin of the data communication cable (PKD line).
Confi rm the modulation of 2 to 4 kHz deviation hangs
when transmitting by PTT operation as stated in step
4), above.
e Input a standard modulation signal of -47dBm (MOD:
1kHz, DEV: 3kHz) from SSG to the transceiver.

ADJUSTMENT

D-SUB terminal of PG-5H
pin 8
pin 7
5 1
9 6
TM-D710A/D710E
Check that a 1kHz tone of 3 to 15 mV is output from
the pink pin (PR1 line) of the data communication
cable.
PG-5H
Data communications cable pin configuration
PR1 line: To microphone input terminal
Pink
Green
PKD line: To line out terminal

Main MPU/Panel MPU/TNC MPU Version

Check Method
■ Main MPU/Panel MPU version check method
You can confi rm the Main MPU and Panel MPU versions
of the transceiver using its panel keys.
When confi rming the version, use normal mode.
When confi rming the version in APRS mode or packet
mode and the beacon is transmitted, the version display is
cancelled.
• Operation procedure
1) Turn the transceiver power OFF.
2) Turn the transceiver power ON while pressing the [PF1]
key to enter the version display mode.
3) The Main MPU and Panel MPU versions are displayed
when entering the version display mode.
Main MPU version
4) To exit the version display mode, press the [ESC] key.
■ TNC MPU version check method
After connecting the transceiver to the PC via the PG-
5G (programming cable), you can confirm the TNC MPU
version by accessing the personal computer communication
software.
• Operation procedure
1) Turn the transceiver power OFF.
2) Connect the RS-232C serial port of the PC to the COM
terminal on the rear of the operation panel via the PG-5G
(Programming cable).
3) Turn the transceiver power ON.
4) Run the personal computer communication software.
T h e m e t h o d o f o p e r a t i n g p e r s o n a l c o m p u t e r
communication software "HyperTerminal" attached to
Windows is described here as an example.
5) Click the "Start" button on the PC, and then select the
software as follows: "Programs" → "Accessories" → "
Communications" → "HyperTerminal"
Panel MPU version
31