Kenwood KCH-16 Service Manual page 41

TK-5710/5710H Transmitter Section
Item Condition
1. Frequency [Panel test mode]
adjust *1 1) CH-Sig: 3-1
[Panel tuning mode]
2) Adj item: [W TXF]
Adjust: [ *** ]
PTT: ON
Press [Orange] to store the ad-
justment value after adjustment.
2. Max power [Panel test mode]
adjust 1) CH-Sig: 1-1
• TK-5710 PTT: ON
• TK-5710H 1) CH-Sig: 3-1
PTT: ON
3. High power [Panel tuning mode]
adjust 1) Adj item: [W HPW]
• TK-5710 Adjust: [ *** ]
2) Adj item: [WL HPW]→
[WLC HPW]→[WC HPW]→
[WCH HPW]→[WH HPW]
• TK-5710H
Adjust: [ *** ]
PTT: ON
Press [Orange] to store the ad-
justment value after adjustment.
4. Low power 1) Adj item: [W LPW]
adjust Adjust: [ *** ]
• TK-5710 2) Adj item: [WL LPW]→
[WLC LPW]→[WC LPW]→
[WCH LPW]→[WH LPW]
Adjust: [ *** ]
• TK-5710H
PTT: ON
Press [Orange] to store the ad-
justment value after adjustment.
5. DQT balance 1) Adj item: [W BALW]
adjust Adjust: [ *** ]
• Wide Deviation meter fi lter
LPF: 3kHz
HPF: OFF
2) Adj item: [WL BALW]→
[WLC BALW]→[WC BALW]→
[WCH BALW]→[WH BALW]
Adjust: [ *** ]
PTT: ON
Press [Orange] to store the ad-
justment value after adjustment.
• Narrow 3) Adj item: [N BALN]
Adjust: [ *** ]
4) Adj item: [NL BALN]→
[NLC BALN]→[NC BALN]→
[NCH BALN]→[NH BALN]
Adjust: [ *** ]
PTT: ON
Press [Orange] to store the ad-
justment value after adjustment.
*1: The reference oscillator frequency may drift due to shock (jarring the radio) or operating conditions. We strongly recommend that the oscillator be
checked each time the radio is serviced, or at least once per year. Maintenance should only be performed under normal temperatures.
ADJUSTMENT
Measurement
Test-
Unit Terminal Unit
equipment
f.counter Rear ANT Front
panel panel
Power Final
meter
Ammeter
Front
panel
Deviation Rear ANT
meter panel
Oscillo-
scope
AG Front MIC jack
AF VTVM panel
KCH-16
Adjustment
Parts Method
[B],[C] Center frequency Note: After replacing the
±50Hz VCXO (X200) align frequency.
VR1 55W ±2W
118W ±2W
[B],[C] 50W ±1W
12A or less
110W ±2W
25A or less
5.0W ±0.5W
5A or less
50W ±1W
12A or less
Make the demodu-
lation waves into
square waves.
Specifi cations / Remarks
41