Kenwood KCH-16 Service Manual page 50

KCH-16
Item Condition
6. Max DEV 1) Adj item: [W FMWD]
adjust Adjust: [ *** ]
• Wide AG: 1kHz/50mV at MIC terminal
Deviation meter fi lter
LPF: 15kHz
HPF: OFF
2) Adj item: [WL FMWD]→
[WLC FMWD]→[WC FMWD]→
[WCH FMWD]→[WH FMWD]
Adjust: [ *** ]
PTT: ON
Press [Orange] to store the ad-
justment value after adjustment.
• Narrow 3) Adj item: [N FMND]
Adjust: [ *** ]
4) Adj item: [NL FMND]→
[NLC FMND]→[NC FMND]→
[NCH FMND]→[NH FMND]
Adjust: [ *** ]
PTT: ON
Press [Orange] to store the ad-
justment value after adjustment.
7. P25 high 1) Adj item: [A HDVA]
deviation Adjust: [ *** ]
adjust Deviation meter fi lter
LPF: 3kHz
HPF: OFF
2) Adj item: [AL HDVA]→
[ALC HDVA]→[AC HDVA]→
[ACH HDVA]→[AH HDVA]
Adjust: [ *** ]
PTT: ON
Press [Orange] to store the ad-
justment value after adjustment.
8. MIC 1) Adj item: [MIC]
sensitivity Adjust: [129]
check *4 PTT: ON
Press [Orange] to store the ad-
justment value after adjustment.
9. QT deviation 1) Adj item: [W QTW]
adjust Adjust: [ *** ]
• Wide Deviation meter fi lter
LPF: 3kHz
HPF: OFF
2) Adj item: [WL QTW]→
[WC QTW]→[WH QTW]
Adjust: [ *** ]
PTT: ON
Press [Orange] to store the ad-
justment value after adjustment.
• Narrow 3) Adj item: [N QTN]
Adjust: [ *** ]
4) Adj item: [WL QTN]→
[WC QTN]→[WH QTN]
Adjust: [ *** ]
PTT: ON
Press [Orange] to store the ad-
justment value after adjustment.
*4: The MIC sensitivity is related to the Max DEV adjustment. If the Max DEV has been adjusted correctly, the MIC sensitivity must be within 5mV
±1.5mV at adjustment digit "129".
50
ADJUSTMENT
Measurement
Test-
Unit Terminal Unit
equipment
Deviation Rear ANT Front
meter panel panel
Oscillo-
scope
AG Front MIC jack
AF VTVM panel
Rear ANT
panel
Power Rear ANT Front
meter panel panel
Deviation
meter
Oscillo- Front MIC jack
scope panel
AG
AF VTVM
Adjustment
Parts Method
[B],[C] 4.05kHz (According ±50Hz
to the large +, −)
2.0kHz (According to ±50Hz
the large +, −)
2827Hz 2771~2883Hz
Adjust AG input 5mV±1.5mV
to get a standard
MOD., 3.0kHz.
[B],[C] 0.75kHz ±50Hz
0.35kHz ±25Hz
Specifi cations / Remarks