Kenwood TK-3170 E - Adjustment Procedures (Continued); DQT Balance and Max Deviation Adjustments; Microphone Sensitivity and VOX Adjustments; QT Deviation Adjustments

TK-3170
43
Item Condition
Measurement Adjustment
Specifications/Remarks
Test-
equipment
Unit Terminal PartsUnit Method
ADJUSTMENT
6. DQT balance 1) Adj item : [BAL_ _] Panel ANT Panel Selector Make the demodu-
adjust Adjust : [✳✳✳.] knob lation waves into
Deviation meter filter Deviation SP/MIC square waves.
LPF : 3kHz meter
HPF : OFF Oscilloscope
• Narrow 2) Adj item : [B.AL_ _] → AG
[B.A.L._ _] → [B.A.L._. _.] AF VTVM
Adjust : [✳✳✳.]
PTT : ON
7. Max DEV 1) Adj item : [DEV_ _] 2.20kHz ± 50Hz
adjust Adjust : [✳✳✳.] (According to the
AG : 1kHz/75mV at MIC terminal larger +, –)
Deviation meter filter
LPF : 15kHz
HPF : OFF
• Narrow 2) Adj item : [D.EV_ _] →
[D.E.V._ _] → [D.E.V._. _.]
Adjust : [✳✳✳.]
PTT : ON
• Wide 4k 3) Adj item : [DEV_ _] 3.50kHz ±50Hz
Adjust : [✳✳.✳.] (According to the
PTT : ON larger +, –)
• Wide 5k 4) Adj item : [DEV_ _] 4.40kHz ±50Hz
Adjust : [✳✳✳] (According to the
PTT : ON larger +, –)
8. MIC [Panel test mode] Check 1.3~1.8kHz (Narrow)
sensitivity 1) CH-Sig : 1-1 1.9~2.9kHz (Wide 4k)
check
AG : 1kHz/15.0mV at MIC terminal 2.5~3.5kHz (Wide 5k)
PTT : ON
9. VOX1 1) Adj item : [VOX1_] AG Panel SP/MIC Panel After apply signal
adjust Adjust : [✳✳✳] from AG, press [B]
AG : 1kHz/150mV at MIC terminal key that numeric
will be stored in
10. VOX10 1) Adj item : [VOX10] memory.
adjust Adjust : [✳✳✳]
AG : 1kHz/2mV at MIC terminal
11. QT deviation 1) Remove the panel tuning Power meter Panel ANT Panel Selector 0.35kHz ± 40Hz
adjust cable assembly from the knob
universal connector. Deviation SP/MIC
• Narrow Adj item : [QT_ _ _] meter
Adjust : [✳✳✳.] Oscilloscope
Deviation meter filter AG
LPF : 3kHz AF VTVM
HPF : OFF
PTT : ON
• Wide 4k 2) Adj item : [QT_ _ _] 0.60kHz ± 40Hz
Adjust : [✳✳.✳.]
PTT : ON
• Wide 5k 3) Adj item : [QT_ _ _] 0.75kHz ± 40Hz
Adjust : [✳✳✳]
PTT : ON
These 2 peaks to
the same level