Kenwood TH-K2AT Service Manual page 36

TH-K2AT/K2E/K2ET
Receiver section
Item Condition
1.RX BPF Squelch level: 0
Adjust 1) Frequency: 145.050M Hz
Frequency: 146.050M Hz
SSG output: –53dBm (501 uV) Dummy load
SSG M OD: 1kHz
SSG DEV: 3kHz
Sw itch to Adjustment mode
and carry out the operations
for adjustment item E.
(Refer to page 29)
2) LCD display: BPL
Frequency: 136.050M Hz
SSG: –119dBm (0.25 uV)
3) SSG: –113dBm (0.501 uV)
4) LCD display: BPC
Frequency: 146.050M Hz
SSG: –119dBm (0.25 uV)
5) SSG: –120dBm (0.22 uV)
6) LCD display: BPH
Frequency: 160.050M Hz
SSG: –119dBm (0.25 uV)
7) SSG: –113dBm (0.501uV)
2.IF response 1) Frequency : 144.050M Hz
Check SSG Frequency: 221.750M Hz Oscilloscope
SSG output: –60dBm (224uV) Distortion meter
SSG M OD: 1kHz
SSG DEV: 3kHz
AF output: 0.63V/8 Ω
3.Squelch / Sw itch to Adjustment mode
S-meter and carry out the operations
Write for adjustment item C.
(Refer to page 28)
1) LCD display: SQ1
Frequency: 145.050M Hz
Frequency: 146.050M Hz
SSG: –125dBm (0.126uV)
2) LCD display: SQ2
Frequency: 145.050M Hz
Squelch
Frequency: 146.050M Hz
SSG: –120dBm (0.22uV)
36
ADJUSTM ENT
M easurement
Test equipment
SSG
(E, E3) Oscilloscope
Distortion meter
(K, K2, M , M 2) AF V.M
SSG
SSG
(E, E3)
(K, K2, M , M 2)
(E, E3)
(K, K2, M , M 2)
Unit Terminal Unit Parts
TX-RX ANT VOL
(A/3) SP knob
Encoder
[M ENU]
Encoder
[M ENU]
Encoder
[M ENU]
ANT
[M ENU]
[M ENU]
Adjustment
Specifications/
Remarks
M ethod
Turn the VOL knob 0.63V
to obtain 0.63V AF
output.
Write M ax Sensitivity
Check 12dB SINAD or
more
Write M ax Sensitivity
Check 12dB SINAD or
more
Write M ax Sensitivity
Check 12dB SINAD or
more
Check 12dB SINAD or
less
Note: If the
specification is not
satisfied, repeat the
operations for
" 1. RX BPF
Adjust" .
Write Note: In the
Squelch adjust
ments, all 4
adjusting points
including the S-
meter must be
Write adjusted.