Kenwood TK-290 Service Manual page 44

Item Condition
4. TX high 1) Set panel test mode
power CH No. : 1
check Signalling No. : 1
PTT : ON
2) CH No. : 2
Signalling No. : 1
PTT : ON
3) CH No. : 3
Signalling No. : 1
PTT : ON
5. TX low 1) Set panel test mode
power CH No. : 3
adjustment Signalling No. : 1
Select POW
LO
PTT : ON
6. TX low 1) Set panel test mode
power CH No. : 1
check Signalling No. : 1
Set low power (Push Side2)
PTT : ON
2) CH No. : 2
Signalling No. : 1
Set low power (Push Side2)
PTT : ON
3) CH No. : 3
Signalling No. : 1
Set low power (Push Side2)
PTT : ON
7. DQT balance 1) Set panel test mode
adjustment CH No. : 3
Signalling No. : 1
Select BLNC
in panel tuning mode
Deviation meter filter setting
LPF : 3kHz
HPF : OFF
PTT : ON
ADJUSTMENT
Measurement
Test-
Unit Terminal Unit
equipment
Power meter Panel ANT
Ammeter
Panel
Power meter Panel ANT Panel
Deviation
meter
Oscilloscope
AG Side Universal
AF VTVM
Adjustment
Parts Method
Check 3.7W~5.2W
2.3A or less
± 0.1W
Top1/ 1.0W
Top2 1.2A or less
Check 0.5W~1.5W
1.2A or less
Top1/ Make the demodu-
Top2 lation waves into
square waves.
TK-290
Specifications/Remarks
43