TH-D72A/D72E
40
Service Setup Mode
■
Function Overview
A. CONTRAST
Adjust LCD contrast.
B. Battery Volt Align
Set power supply voltage to 5.8V from
Battery Terminal.
C. 2nd local
Adjust the A band 2nd local oscillator.
D. RTC
Adjust RTC frequency.
E. Transmission
Frequency
Adjust transmission frequency.
F. APC
Adjust the HI, LOW, EL transmission
power.
G. MAX deviation
Adjust the max deviation.
H. Balance 1
Adjust the Modulation balance 1.
I. Balance 2
Adjust the Modulation balance 2.
J. CTCSS deviation
Adjust the CTCSS deviation.
K. DCS deviation
Adjust the DCS deviation.
L. VOX gain
adjustment
Adjust VOX gain.
M. BPF
Adjust the BPF tune level/
N. S-meter/Squelch
Adjust the fi rst segment and all segment
ON level of the S-meter and adjust the
squelch threshold and level 2 voltage.
• It is not necessary for all the adjustment frequency in
TH-D72A/D72E to set by the adjustment item because it
is registered the inside.
■
Example
• It is used to replace the EEPROM, readjust it, or review
the design in a service center.
■
Operation
1) Service Setup Mode appears when accessing two il-
lustrated lands on the component mounted side of the
TX-RX Unit (A/3) while the transceiver is switched ON.
When the Service Setup Mode is set, the following is
displayed and adjustment item setting state is displayed
on the non-operation band side.
TX-RX UNIT (X57-784X-XX) (A/3)
Foil side
A S T
R
T
N
O
C
• [
S
], [
T
], Encoder: Changes adjustment items. Increase
or decrease the adjustment value (adjustment value).
• [
X
OK]: OK and Set the adjusted adjustment value in the
EEPROM.
• [ESC
W
]: Escape.
• Keys other then the above can’t be operated.
• A. CONTRAST
1) Display the “CONTRAST” item.
2) Press [
S
], [
T
] key and turn the encoder to the “adjust-
ment value”.
3) Press [
X
OK] key to set the “adjustment value” in the
EEPROM.
A S T
R
T
N
O
C
5
1
5
1
1
EEPROM setting
adjustment value
1
• B. Battery Volt Align
1) Display the “BATT” item.
2) Set power supply voltage to 5.8V from Battery Terminal.
3) Press [
X
OK] key to set the 5.8V reference voltage in the
EEPROM.
Battery remaining voltage display are controlled based on
this value.
T
T
A
B
0
1
0
1
1
EEPROM setting
adjustment value
1
• C. 2nd local
1) Display the “FREQ A” item.
2) Press [
S
], [
T
] key and turn the encoder to the “adjust-
ment value”.
3) Press [
X
OK] key to set the “adjustment value” in the
EEPROM.
2
9
2
9
1
EEPROM setting
adjustment value
Q
E
R
F
A
A
1
• D. RTC
1) Display the “RTC” item.
2) Press [
S
], [
T
] key and turn the encoder to the “RTC
adjust value” as shown in the “Frequency Adjustment
Points” table next page.
3) Press [
X
OK] key to set the “adjustment value” in the
EEPROM.
2
6
2
6
1
EEPROM setting
RTC adjust value
Q
C
T
R
A
ADJUSTMENT