TS-590S
72
ADJUSTMENT
Item
Condition
Measurement
Adjustment
Specifi cations / Remarks
Test-
equipment
Unit
Terminal
Unit
Parts
Method
4. MCF
(11.374MHz)
1) Menu No.: 54
Mode:
USB
Spectrum analyzer setting
Center f.: 11.374MHz
Frequency span: 20kHz
XdB/DIV: 10dB
TG level: 0dBm
RBW: 300Hz
VBW: 1kHz
Connect the tracking genera-
tor output to CN301.
Connect the spectrum ana-
lyzer input to CN302.
Tracking
generator
Spectrum
analyzer
TX-RX
(A/2)
CN301
CN302
TX-RX
(A/2)
L301
L302
Adjust the coils to
obtain the frequency
response as shown.
11.374MHz
6dB
6dB
3kHz 3kHz
5. MCF
(73.095MHz)
1) Display f.: 29.200MHz
Mode:
FM
Spectrum analyzer setting
Center f.: 73.095MHz
Frequency span: 100kHz
XdB/DIV: 10dB
TG level: 0dBm
RBW: 3kHz
VBW: 10kHz
Connect the tracking genera-
tor output to CN303.
Connect the spectrum ana-
lyzer input to CN304.
CN303
CN304
L326
L374
L375
L376
73.095MHz
3dB
3dB
7.5
kHz
7.5
kHz
6. RX Trap
•
11.3745MHz
1) Display f.: 21.4MHz
Mode
:USB
PRE-AMP:
ON
SSG f.: 11.3745MHz
SSG
output:
–30dBm (7.07mV)
SSG
AF V.M
Rear
panel
ANT 1
EXT. SP
L253
L255
Check S-meter is
not appear.
AF output min.
Repeat adjust for 2
to 3 times.
If S-meter is appear, turn SSG
level settings down until S-
meter is not appear.
• 44.150MHz 2) Display f.: 21.4MHz
Mode:
USB
PRE-AMP:
ON
SSG f.: 44.150MHz
SSG
output:
–30dBm (7.07mV)
TC105 Check S-meter is
not appear.
AF output min.
7. FM discrimi-
nator
1) Display f.: 29.200MHz
Mode:
FM
PRE-AMP:
ON
AF output: 0.63V/8
Ω
SSG f.: 29.200MHz
SSG
output:
–53dBm (0.501mV)
MOD:
1kHz
DEV:
3kHz
SSG
Oscilloscope
AF V.M
Distortion
meter
DM.SP
Audio
analyzer
L595
Adjust the L595 to
AF maximum output
of 0.63V/ 8 ohms.
Check the distortion
and the waveform is
a good sine wave.
AF max.
2.3% or less
8. 1st mixer
balance
1) Adjustment of VR261
VR261 Adjust the volume
position of VR261 as
shown.
Q
3
2) Menu No.: 06 (100kHz, USB)
PRE-AMP:
OFF
SSG:
OFF
SSG
AF V.M
Rear
panel
ANT 1
EXT. SP
VR321 Noise min.
Summary of Contents for TS-590S
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