Kenwood TK-6110 Service Manual page 37

Item Condition
3. BPF 1) CH-SIG : 2-1
Select _ _L
SENS_ _75 : K
SENS_ _50 : K2
in tune mode
Spectrum analyzer
Span : 50MHz
Scale : 10dB/div
Tracking generator
Output : –20dBm
4. MCF 1) CH-SIG : 1-1
Spectrum analyzer
Span : 25kHz
Scale : 10dB/div
Center frequency : 128.55MHz generator
Tracking generator
Output : –20dBm
5. Delay line 1) CH-SIG : 1-1
NB Spectrum analyzer
Span : 20MHz
Scale : 10dB/div
Center frequency : 128.55MHz generator
Tracking generator
Output : –20dBm
6. Distortion 1) CH-SIG : 1-1
SSG output : –53dBm/501 V
AF output : 1V/4
ADJUSTMENT
Measurement
Test-
Unit Terminal Unit
equipment
Spectrum TX-RX CN201 TX-RX L202
analyzer (A/3) (A/3)
Tracking Rear ANT
generator panel
K
CH2 S 21 log MAG 10dB / REF 0dB
1
Marker 1
: 29.7MHz
START 10.000,000MHz
Spectrum TX-RX CN203 TX-RX L222
analyzer (A/3) (A/3)
Tracking CN204
Spectrum TX-RX CN204 TX-RX TC202 Adjust it so it is almost symmetrical, and so the
analyzer (A/3) (A/3)
Tracking CN202
SSG Rear ANT TX-RX L237
panel (A/3)
Distortion EXT.SP
meter
AF VTVM
Oscilloscope
4 dummy
load
Adjustment
Parts Method
Adjust the coils in
L203 the following order
L206 : L202, L203, L206,
L207 L207
K2
1 : 15.40dB CH2 S 21 log MAG 10dB / REF 0dB
STOP 60.000,000MHz START 20.000,000MHz
Adjust it so it is almost symmetrical, and so the
L223 gain is maximum.
L224 Adjust the coils in the following order : L222, L223,
L225 L224, L225.
CH2 S 21 log MAG 10dB / REF –20dB
Marker 1
: 128.550MHz
Center frequency
128.550,000MHz
TC204 gain is maximum.
CH2 S 21 log MAG 10dB / REF 0dB
Marker 1
: 128.55MHz
Center frequency
128.550,000MHz
Adjust it, and so
the distortion is
minimum.
TK-6110
Specifications/Remarks
Adjust it so it is almost
symmetrical, and so the gain
is maximum.
1 : 16.288dB
1
Marker 1
: 35MHz
STOP 70.000,000MHz
1 : –13.306dB
1
SPAN 0.100,000MHz
1 : –23.286dB
1
SPAN 20.000,000MHz
Distortion is minimum.
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