TK-3170/3173
47
Item
Condition
Measurement
Adjustment
Specifications/Remarks
Test-
equipment
Unit
Terminal
Parts
Unit
Method
ADJUSTMENT
1. Frequency
1) Adj item : [FREQ_]
f. counter
Panel
ANT
Panel
Selector High frequency
Note : After replacing the
adjust
Adjust : [
✳✳✳
]
knob
±
50Hz
TCXO (X501) align frequency.
CH-Sig : 3-1
PTT : ON
2. High power
1) Adj item : [HPWR_]
Power meter
4.0W
±
0.1W
adjust
Adjust : [
✳✳✳
]
Ammeter
1.8A or less
2) Adj item : [H.PWR_]
→
[H.P.WR_]
→
[H.P.W.R_]
→
[H.P.W.R._]
→
[H.P.W.R._.]
Adjust : [
✳✳✳
]
PTT : ON
3. High power
[Panel test mode]
Check
4.5~5.5W
check
1) CH-Sig : 1-1
1.9A or less
PTT : ON
2) CH-Sig : 2-1
PTT : ON
3) CH-Sig : 3-1
PTT : ON
4. Low power
1) Adj item : [LPWR_]
Panel
Selector 1.0W
±
0.1W
adjust
Adjust : [
✳✳✳
]
knob
0.9A or less
2) Adj item : [L.PWR_]
→
[L.P.W.R_]
→
[L.P.W.R._.]
Adjust : [
✳✳✳
]
PTT : ON
5. Low power
[Panel test mode]
Power meter Panel
ANT
Check
0.7~1.4W
check
1) CH-Sig : 1-1
Ammeter
1.0A or less
Set low power (Push [S])
PTT : ON
2) CH-Sig : 2-1
PTT : ON
3) CH-Sig : 3-1
PTT : ON
Transmitter Section
Common Section
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
[Panel test mode]
Power meter Panel
ANT
TX-RX
TC502 3.6V
K,K4,M,3173
±
0.1V
voltage
1) CH-Sig : 3-1
(A/4)
3.4V
K3,K6,M3
• RX
DVM
TX-RX
CV
2) CH-Sig : 2-1
(A/4)
Check
0.6V or more
• TX
[Panel tuning mode] LPWR*
TX-RX
TC501 3.6V
K,K4,M,3173
±
0.1V
3) CH-Sig : 3-1
(A/4)
3.4V
K3,K6,M3
PTT : ON
4) CH-Sig : 2-1
Check
0.6V or more
PTT : ON
* TX can be continued on unlock condition in panel tuning mode.
Item
Condition
Measurement
Adjustment
Specifications/Remarks
Test-
equipment
Unit
Terminal
Parts
Unit
Method