Kenwood KCH-16 Service Manual page 48

KCH-16
Item Condition
• Narrow 2) Turn the [
"N" (Narrow) appears on the
LCD.
Spectrum analyzer setting
Center-f: 49.95MHz
Span: 30kHz
RBW: 1kHz
VBW: 1kHz
TG level: –20dBm
XdB/div: 2dB
4. 2nd local [Panel tuning mode]
adjust 1) Adj item: [W SLO]
Adjust: [ *** ]
Press [Orange] to store the ad-
justment value after adjustment.
5. Quadrature [Panel test mode]
coil adjust 1) CH-Sig: 1-1
SSG output: –53dBm (501µV)
(DEV:OFF)
6. RTC 1) CH-Sig: 1-1
oscillation
frequency
adjust
48
ADJUSTMENT
Measurement
Test-
equipment
]/[ ] key as Spectrum Rear
analyzer panel
Tracking TX-RX
generator
f.counter TX-RX
SSG TX-RX
DVM
AF VTVM
Dummy load
f.counter Control CLKC
DVM
DC power
supply
Adjustment
Unit Terminal Unit Parts
ANT TX-RX L217
L222
L227
CN202 L229
CN207
SLO TX-RX [B],[C] Change the adjust-
QUAD TX-RX L234
EXT.SP
Program-
32KOUT ming
Software:
KPG-95D
Specifi cations / Remarks
Method
Adjust the coils to
obtain the waveform
as shown to the
right.
REF –20.0 dBm ATT 10 dB
2 dB/
CAL.OFF
TG LEVEL
–20 dBm
−3kHz +3kHz
RBW
1 kHz
VBW
−6kHz
1 kHz
SWP 150ms SPAN 30.0 kHz
50.4MHz±70Hz
ment value within
the limit of the
specifi ed frequency.
Adjust the coil 1.0V±0.05V
within the limit
of the specifi ed
voltage.
Adjust the RTC Note: It is not necessary to
oscillation frequency adjust the RTC oscillation
using the PC tuning frequency under normal ad-
mode. Perform the justments.
procedures below. The RTC oscillation frequency
1. Apply 5V DC to the must be checked and ad-
"CLKC" terminal justed when the 32kHz crystal
of the control unit resonator (X700) is replaced.
(X53-412).
2. Measure the
output from the
"32KOUT" termi-
nal of the control
unit (X53-412)
using the calibrated
frequency counter.
3. Enter the measured
frequency value to
"Crystal Oscillation
Frequency" of RTC
correction in the
PC tuning mode
and then click [OK]
button.
1.0dB
MAX
6.0dB
or more
+6kHz
CENTER 49.9500 MHz