Kenwood TS-990S Service Manual page 174

TS-990S
Item Condition
IF fi lter 2) Main display f.:
14.200000MHz
• 500Hz Mode: USB
FIL/SEL(M):500Hz
Spectrum analyzer setting
Center f.: 8.248MHz
Frequency span: 5kHz
TG level: 0dBm
• 2.7kHz 3) Main display f.:
14.200000MHz
Mode: USB
Spectrum analyzer setting
Center f.: 8.248MHz
Frequency span: 10kHz
TG level: 0dBm
• 6kHz 4) Main display f.:
14.200000MHz
Mode: USB
Spectrum analyzer setting
Center f.: 8.248MHz
Frequency span: 10kHz
TG level: 0dBm
• 15kHz 5) Main display f.:
14.200000MHz
Mode: USB
Spectrum analyzer setting
Center f.: 8.248MHz
Frequency span: 50kHz
TG level: 0dBm
After the adjustment, discon-
nect the cable from CN115.
7. NB MCF 1) Menu No.: 5 (14.2MHz, USB)
(15kHz) P.AMP: ON
AGC: OFF
FIL/SEL(M):15kHz
NB1: ON
Spectrum analyzer setting
Center f.: 8.248MHz
Frequency span: 40kHz
TG level: 0dBm
Connect the tracking genera-
tor output to CN86.
Connect the spectrum ana-
lyzer input to CN129.
174
ADJUSTMENT
Measurement
Test-
Unit Terminal Unit
equipment
Tracking RX CN115
generator (A/2) CN129
Spectrum
analyzer
RX
(A/2)
Tracking RX CN86 RX
generator (A/2) CN129 (A/2)
Spectrum
analyzer
Adjustment
Parts Method
Check that the fre-
quency response is
as shown.
L96 Adjust each coil to
L99 obtain the frequency
response as shown.
L95 Adjust each coil to
L98 obtain the frequency
response as shown.
L94 Adjust each coil to
L97 obtain the frequency
response as shown.
L110 Adjust each coil to
L111 obtain the frequency
response as shown.
Specifi cations/Remarks
8.248MHz
8.248MHz
<6dB
<6dB
1.35kHz
1.35kHz
8.248MHz
<6dB
<6dB
3kHz 3kHz
8.248MHz
<6dB
<6dB
7.5kHz 7.5kHz
8.248MHz
8.2555MHz
8.2405MHz