Kenwood FM Transceiver TK-481 Service Manual page 39

TK-480/481
Item Condition
15. QT DEV 1) SYS – GRP : 4 –
adjustment MIC input : OFF
Select FQT
in tuning mode.
Deviation meter filter setting
LPF : 3kHz
HPF : 50Hz
De-emphasis : 750 s
PTT : ON
16. DQT DEV 1) SYS – GRP : 4 –
adjustment Select FDQT
in tuning mode.
Deviation meter filter setting
LPF : 3kHz
HPF : OFF
PTT : ON
17.LTR DEV 1) SYS – GRP : 4 –
adjustment Select FLTR
in tuning mode.
Deviation meter filter setting
LPF : 3kHz
HPF : OFF
PTT : ON
18. DTMF DEV 1) SYS – GRP : 4 –
adjustment Select DTMF
in tuning mode.
Deviation meter filter setting
LPF : 15kHz
HPF : OFF
PTT : ON
19. MSK DEV 1) SYS – GRP : 4 –
adjustment Select FMSK
in tuning mode.
Deviation meter filter setting
LPF : 15kHz
HPF : OFF
PTT : ON
20. TONE DEV 1) SYS – GRP : 4 –
adjustment Select TONE
in tuning mode.
Deviation meter filter setting
LPF : 15kHz
HPF : OFF
PTT : ON
21. BATT 1) SYS – GRP : 4 –
detection Select BATT
writing in tuning mode.
PTT : ON
38
ADJUSTMENT
Measurement
Test-
Unit Terminal Unit
equipment
Power meter Panel ANT Panel
Deviation
meter
Oscilloscope
AG
AF VTVM
Adjustment
Parts Method
Encoder TK-480 : 0.75kHz
knob TK-481 : 0.45kHz
TK-480 : 1.00kHz
TK-481 : 0.75kHz
TK-480 : 3.00kHz
TK-481 : 1.50kHz
2.5kHz
After pressing the BATT terminal voltage : 6.2V
PTT switch, confirm
that one predeter-
mined numeric in
the range 1 to 256
appears and then
press [B] key.
That numeric will be
stored in memory.
Specifications/Remarks
0.05kHz
0.10kHz : TK-480
0.05kHz : TK-481
0.15kHz : TK-480
0.10kHz : TK-481
0.1kHz