Kenwood TK-2170ST Service Manual page 45

Common Section
Item Condition
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]
voltage 1) CH-Sig : 3-1
• RX
2) CH-Sig : 2-1
• TX [Panel tuning mode] LPWR*
3) CH-Sig : 3-1
PTT : ON
4) CH-Sig : 2-1
PTT : ON
* TX can be continued on unlock condition in panel tuning mode.
Transmitter Section
Item Condition
1. Frequency 1) Adj item : [FREQ_]
adjust Adjust : [✳✳✳]
CH-Sig : 3-1
PTT : ON
2. High power 1) Adj item : [HPWR_]
adjust Adjust : [✳✳✳]
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 1) CH-Sig : 1-1
PTT : ON
2) CH-Sig : 2-1
PTT : ON
3) CH-Sig : 3-1
PTT : ON
4. Low power 1) Adj item : [LPWR_]
adjust Adjust : [✳✳✳]
2) Adj item : [L.PWR_] →
[L.P.W.R_] → [L.P.W.R._.]
Adjust : [✳✳✳]
PTT : ON
ADJUSTMENT
Measurement
Test-
Unit Terminal Unit
equipment
Power meter Panel ANT TX-RX TC502 3.8V
(A/4)
DVM TX-RX CV
(A/4)
TX-RX TC501 3.8V
(A/4)
Measurement
Test-
Unit Terminal Unit
equipment
f. counter Panel ANT Panel
Power meter
Ammeter
Panel
TK-2170/2170ST
Adjustment
Parts Method
± 0.1V
Check 0.6V or more
± 0.1V
Check 0.6V or more
Adjustment
Parts Method
Selector High frequency Note : After replacing the
± 50Hz
knob TCXO (X501) align frequency.
± 0.1W
5.0W
1.8A or less
Check 4.5~5.5W
1.9A or less
± 0.1W
Selector 1.0W
knob 0.9A or less
Specifications/Remarks
Specifications/Remarks
45