Kenwood TK-280 Service Manual page 43

Receiver Section [Panel Tuning Mode except when Panel TEST Mode is specified.]
Item Condition
1. Sensitivity 1) Adj item [SENS]
Adjust Adjust [∗∗∗]
2) Adj item
[L SENS] ➞ [C SENS] ➞ [H SENS]
Adjust [∗∗∗]
SSG OUT:-118dBm
MOD:1kHz / ±3kHz
2. Sensitivity [Panel Test Mode]
Check 1) CH-Sig:1-1
SSG OUT
Wide:-118dBm
(MOD:1kHz / ±3kHz)
Narrow:-117dBm
(MOD:1kHz / ±1.5kHz)
3. Squelch 1) Adj item [SQL]
Adjust Adjust [∗∗∗]
SSG OUT:
12dB SINAD level
2) Adj item [n SQL]
Adjust [∗∗∗]
12dB SINAD level
4. Squelch [Panel Test Mode]
Check 1) CH-Sig:1-1
SSG OUT:
12dB SINAD level
2) SSG OUT:OFF
Adjustment points
TX-RX unit (X57-5740)
component side view
ADJUSTMENT
Measurement
Test equipment Unit Terminal
SSG Panel ANT
AF VTVM Universal
Oscilloscope Connector
Adjustment
Unit Parts Method
Panel Encoder Adjust for
knob maximam
SINAD.
Check
Encoder Adjust to point
knob of opening
squelch.
Check
TK-280
Specifications/
Remark
14dB SINAD or
more.
12dB SINAD or
more
Squelch must
be opened.
Squelch must
be closed.
43