Kenwood TK-2180 Service Manual page 33

Item Condition
6. Low power 1) Adj item : [LPWR]
adjust Adjust : [✳✳✳]
2) Adj item : [L LPWR] →
[L' LPWR] → [C LPWR] →
[H' LPWR] → [H LPWR]
Adjust : [✳✳✳]
PTT : ON
7. Low power [Panel test mode]
check 1) CH-Sig : 1-1
Set low power (Push [S])
PTT : ON
2) CH-Sig : 2-1
PTT : ON
3) CH-Sig : 3-1
PTT : ON
8. DQT balance 1) Adj item : [n BAL]
adjust Adjust : [✳✳✳]
Deviation meter filter
LPF : 3kHz, HPF : OFF
2) Adj item : [nL BAL] →
• Narrow
[nC BAL] → [nH BAL]
Adjust : [✳✳✳]
PTT : ON
• Wide 4k 3) Adj item : [s BAL]
Adjust : [✳✳✳]
PTT : ON
• Wide 5k 4) Adj item : [w BAL]
Adjust : [✳✳✳]
PTT : ON
9. Max DEV 1) Adj item : [n DEV]
adjust Adjust : [✳✳✳]
AG : 1kHz/125mV at MIC terminal
Deviation meter filter
LPF : 15kHz, HPF : OFF
2) Adj item : [nL DEV] →
• Narrow
[nC DEV] → [nH DEV]
Adjust : [✳✳✳]
PTT : ON
• Wide 4k 3) Adj item : [s DEV]
Adjust : [✳✳✳]
PTT : ON
• Wide 5k 4) Adj item : [w DEV]
Adjust : [✳✳✳]
PTT : ON
10. MIC [Panel test mode]
sensitivity 1) CH-Sig : 1-1
check DEV : 1.5kHz (Narrow)
2.4kHz (Wide 4k)
3.0kHz (Wide 5k)
Deviation meter filter
LPF : 15kHz, HPF : 0FF
PTT : ON
ADJUSTMENT
Measurement
Test-
Unit Terminal Unit
equipment
Power meter Panel ANT Panel
Ammeter
Panel ANT Panel
Deviation Universal
meter connector
Oscilloscope
AG
AF VTVM
TK-2180
Adjustment
Parts Method
± 0.1W
Selector 1.0W
knob 1.0A or less
Check 0.7~1.4W
1.2A or less
Selector Make the demodu-
knob lation waves into
square waves.
± 50Hz
2.10kHz
(According to the
larger +, –)
± 50Hz
3.5kHz
(According to the
larger +, –)
± 50Hz
4.4kHz
(According to the
larger +, –)
Check AG : 1kHz/6.7mV ~18.3mV
at MIC terminal
Specifications/Remarks
33