TK-3148
40
ADJUSTMENT
Common Section
Item
Condition
Measurement
Adjustment
Specifi cations / Remarks
Test-
equipment
Unit
Terminal
Unit
Parts
Method
1. Setting
1) BATT terminal voltage: 7.5V
2) SSG Standard modulation
[Wide]
MOD: 1kHz, DEV: 3kHz
[Narrow]
MOD: 1kHz, DEV: 1.5kHz
2. VCO lock
voltage
•
RX
[Panel Test Mode]
1) CH-Sig: 3-1
Power
meter
DVM
Panel
TX-RX
ANT
CV
TX-RX
TC2
4.0V
±0.1V
2) CH-Sig: 2-1
Check
0.6V or more
• TX
3) CH-Sig: 3-1
PTT:
ON
TX-RX
TC1
4.0V
±0.1V
4) CH-Sig: 2-1
PTT:
ON
Check
0.6V or more
Transmitter Section (Panel tuning mode except when Panel test mode is specifi ed)
Item
Condition
Measurement
Adjustment
Specifi cations / Remarks
Test-
equipment
Unit
Terminal
Unit
Parts
Method
1. Frequency
Adjust
1) Adj item [FREQ]
Adjust
[***]
PTT:
ON
f. counter
Power
meter
Ammeter
Panel
ANT
Panel
Encoder
knob
Center frequency ±
100Hz
Note:
After replacing the
TCXO (X1), align using KPG-
74D CPS.
2. Hight Power
Adjust
1) Adj item [HPOW]
Adjust
[***]
2) Adj item
[L
HPOW]
→
[L2 HPOW]
→
[C HPOW]
→
[H2 HPOW]
→
[H HPOW]
Adjust
[***]
PTT:
ON
4.0W
±0.1W
1.9A or less
3. Hight Power
Check
[Panel Test Mode]
1) CH-Sig: 1-1
PTT:
ON
Check
3.7~4.3W
1.9A or less
2) CH-Sig: 2-1
PTT:
ON
3) CH-Sig: 3-1
PTT:
ON
4. Low Power
Adjust
1) Adj item [LPOW]
Adjust
[***]
2) Adj item
[L
LPOW]
→
[L2 LPOW]
→
[C LPOW]
→
[H2 LPOW]
→
[H LPOW]
Adjust
[***]
PTT:
ON
Panel
Encoder
knob
1.0W
±0.05W
1.0A or less
5. Low Power
Check
[Panel Test Mode]
1) CH-Sig: 1-1
Set low power (Push [C])
PTT:
ON
Check
0.5~1.5W
1.0A or less
2) CH-Sig: 2-1
PTT:
ON
3) CH-Sig: 3-1
PTT:
ON
