Kenwood TK-3170 Service Manual page 47

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
5. Low power [Panel test mode]
check 1) CH-Sig : 1-1
Set low power (Push [S])
PTT : ON
2) CH-Sig : 2-1
PTT : ON
3) CH-Sig : 3-1
PTT : ON
ADJUSTMENT
Measurement
Test-
Unit Terminal Unit
equipment
Power meter Panel ANT TX-RX TC502 3.6V K,K4,M,3173
(A/4)
DVM TX-RX CV
(A/4)
TX-RX TC501 3.6V K,K4,M,3173
(A/4)
Measurement
Test-
Unit Terminal Unit
equipment
f. counter Panel ANT Panel
Power meter
Ammeter
Panel
Power meter Panel ANT
Ammeter
TK-3170/3173
Adjustment
Parts Method
± 0.1V
3.4V K3,K6,M3
Check 0.6V or more
± 0.1V
3.4V K3,K6,M3
Check 0.6V or more
Adjustment
Parts Method
Selector High frequency Note : After replacing the
± 50Hz
knob TCXO (X501) align frequency.
± 0.1W
4.0W
1.8A or less
Check 4.5~5.5W
1.9A or less
± 0.1W
Selector 1.0W
knob 0.9A or less
Check 0.7~1.4W
1.0A or less
Specifications/Remarks
Specifications/Remarks
47