Kenwood TK-2202L Service Manual page 20

Receiver Section
Item Condition
1.BPF Wave (1)Center frequency
Adjust Spectrum analyzer setting analyzer
Center-f : 155MHz
Span : 50MHz
RBW : 300kHz
VBW : 10kHz
ATT : 5dB
(2)High-edge frequency
Spectrum analyzer setting
Center-f : 174MHz
(3)Low-edge frequency
Spectrum analyzer setting
Center-f : 136MHz
2.Sensitivity TEST CH: Low
Check Center
[Wide] High
SSG otuput:–117 dBm(0.3µV) AF VTVM
SSG MOD:3.0kHz
[Narrow] TEST CH: Center
SSG otuput:–115 dBm(0.4µV)
SSG MOD:1.5kHz
3.SQL1 TEST CH: Center
(Threshold) Low
Writing High
[Wide] SSG otuput:–123 dBm(0.16µV)
SSG MOD:3.0kHz
[Narrow] TEST CH: Center
SSG otuput:–122 dBm(0.18µV)
SSG MOD:1.5kHz
4.SQL9 TEST CH: Center
(Tight) Low
Writing High
[Wide] SSG otuput:–117 dBm(0.3µV)
SSG MOD:3.0kHz
[Narrow] TEST CH:Center
SSG otuput:–116 dBm(0.35µV)
SSG MOD:1.5kHz
5.BATT BATT terminal voltage:5.9V
detection
Writing
ADJUSTMENT
Measurement
Test equipment Terminal
Spectrum ANT
BPF
SSG ANT
DVM
Oscilloscope
DVM ANT
BATT terminal
TK-2202L
Adjustment
Parts Method
Programming Adjust the
Software: waveform as
KPG-87D shown to the
right.
Check
Programming Write
Software:
KPG-87D
Write
Specifications/
Remark
Mkrl 155.0 MHz
Ref -23 dBm Atten 5 dB -33.5 dBm
Peak
Log
5 1
dB/
W1 S2
S3 FC
AA
Center 155 MHz Span 50 MHz
#Res BW 300 kHz #VBW 10 kHz #Sweep100 ms (401 pts)
Mkrl 174.0 MHz
Ref -23 dBm Atten 5 dB -34.06 dBm
Peak
Log
5
1
dB/
W1 S2
S3 FC
AA
Center 174MHz Span 50 MHz
#Res BW 300 kHz #VBW 10 kHz #Sweep100 ms (401 pts)
Mkrl 136.0 MHz
Ref -20 dBm Atten 5 dB -31.86 dBm
Peak
Log
5
1
dB/
W1 S2
S3 FC
AA
Center 136 MHz Span 50 MHz
#Res BW 300 kHz #VBW 10 kHz #Sweep100 ms (401 pts)
12dB SINAD or more
Squelch open
BATT terminal
voltage:5.9V
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