Kenwood TH-D72A Service Manual page 40

TH-D72A/D72E
Service Setup Mode
■ Function Overview
A. CONTRAST Adjust LCD contrast.
Set power supply voltage to 5.8V from
B. Battery Volt Align
Battery Terminal.
C. 2nd local Adjust the A band 2nd local oscillator.
D. RTC Adjust RTC frequency.
E. Transmission
Adjust transmission frequency.
Frequency
Adjust the HI, LOW, EL transmission
F. APC
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
Adjust VOX gain.
adjustment
M. BPF Adjust the BPF tune level/
Adjust the fi rst segment and all segment
N. S-meter/Squelch 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.
O C N
40
ADJUSTMENT
TX-RX UNIT (X57-784X-XX) (A/3)
Foil side
R T A S T
• [ ], [ ], Encoder: Changes adjustment items. Increase
or decrease the adjustment value (adjustment value).
• [ OK]: OK and Set the adjusted adjustment value in the
EEPROM.
• [ESC ]: Escape.
• Keys other then the above can't be operated.
• A. CONTRAST
1) Display the "CONTRAST" item.
2) Press [ ], [ ] key and turn the encoder to the "adjust-
ment value".
3) Press [ OK] key to set the "adjustment value" in the
EEPROM.
O C N R T A S T
1
1
• B. Battery Volt Align
1) Display the "BATT" item.
2) Set power supply voltage to 5.8V from Battery Terminal.
3) Press [ OK] key to set the 5.8V reference voltage in the
EEPROM.
Battery remaining voltage display are controlled based on
this value.
A B T T
1
1
• C. 2nd local
1) Display the "FREQ A" item.
2) Press [ ], [ ] key and turn the encoder to the "adjust-
ment value".
3) Press [ OK] key to set the "adjustment value" in the
EEPROM.
R F Q E AA
1
1
• D. RTC
1) Display the "RTC" item.
2) Press [ ], [ ] key and turn the encoder to the "RTC
adjust value" as shown in the "Frequency Adjustment
Points" table next page.
3) Press [ OK] key to set the "adjustment value" in the
EEPROM.
R C T Q A
1
5 1
EEPROM setting
5 1
adjustment value
0 1
EEPROM setting
0 1
adjustment value
2 9
EEPROM setting
2 9
adjustment value
2 6
EEPROM setting
2 6
RTC adjust value