Kenwood TK-372G Service Manual page 40

TK-372G
Item Condition
K type
1. BPF (PANEL TEST MODE)
Adjustment CH-Sig 1-1
Tra-G setting -40dBm
2. Sensitivity [Panel Test Mode]
Check 1) CH-Sig:1-1
SSG OUT
Wide:-118dBm (0.28µV)
(MOD:1kHz / ±3kHz)
Narrow:-116dBm (0.35µV)
(MOD:1kHz / ±1.5kHz)
3. Squelch (Open) 1) Adj item [SQL3]
Adjust Adjust [∗∗∗]
[Wide] SSG OUT:
-124dBm
2) Adj item [SQL3.]
Adjust [∗∗∗]
SSG OUT:
[Narrow] -123dBm
4. Squelch(Tight) 1) Adj item [SQL9]
Adjust Adjust [∗∗∗]
[Wide] SSG OUT:-117dBm (0.3µV)
[Narrow] 2) Adj item [SQL9.]
SSG OUT:-116dBm (0.35µV)
5. Squelch [Panel Test Mode]
Check 1) CH-Sig:1-1
SQ Level : [SQL5]
SSG OUT:
-118dBm (0.28µV)
2) SSG OUT:OFF
40
ADJUSTMENT
Measurement
Test equipment Terminal
Tracking generator ANT
Spectrum analyzer BPF
Fig. 1
SSG ANT
AF VTVM
Oscilloscope
Adjustment
Parts Method
TC301, TC302, Adjust wave form to figure 1.
TC303
Check
Encoder
knob
squelch.
Check
Specifications/
Remark
12dB SINAD or
more
Adjust to the
squelch
threshold point
Adjust to the
squelch
threshold point
Squelch must
be opened.
Squelch must
be closed.