Common Section; Transmitter Section (K Market Model Skips Adjustment Of Wide 4K) - Kenwood TK-7180 Service Manual

Common Section

Item Condition
1. Setting 1) Power supply voltage
DC power supply terminal : 13.6V
2) SSG standard modulation
[Wide 5k] MOD : 1kHz, DEV : 3kHz
[Wide 4k] MOD : 1kHz, DEV : 2.4kHz
[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 (K market model skips adjustment of Wide 4k)

Item Condition
1. Frequency 1) Adj item : [FREQ]
adjust Adjust : [✳✳✳]
PTT : ON
2. Frequency 1) Adj item : [SHFT1]
shift 1 Adjust : [✳✳✳]
2) Adj item : [L SHFT1] →
adjust
[C SHFT1] → [H SHFT1]
Adjust : [✳✳✳]
PTT : ON
3. Frequency 1) Adj item : [SHFT2]
shift 2 Adjust : [✳✳✳]
2) Adj item : [L SHFT2] →
adjust
[C SHFT2] → [H SHFT2]
Adjust : [✳✳✳]
PTT : ON
4. Max high 1) Adj item : [MHPWR]
power Adjust : [✳✳✳]
2) Adj item : [L MHPWR] →
adjust
[L' MHPWR] → [C MHPWR]→
[H' MHPWR] → [H MHPWR]
Adjust : [✳✳✳]
PTT : ON
ADJUSTMENT
Measurement
Test-
Unit Terminal Unit
equipment
Power meter Rear ANT TX-RX TC301 8.1V
panel (B/3)
DVM TX-RX CV
(B/3)
TX-RX TC302 8.1V
(B/3)
Measurement
Test-
Unit Terminal Unit
equipment
f. counter Rear ANT Front
panel panel
Power meter
TK-7180
Adjustment
Parts Method
± 0.1V
Check 2.0V± 0.5V
± 0.1V
Check 2.0V± 0.5V
Adjustment
Parts Method
[ ],[ ] Center frequency Note : After replacing the
± 50Hz
VCXO (X301) align frequency.
± 50Hz
[L SHFT1]
Low frequency+1.25kHz
[C SHFT1]
Center frequency+1.25kHz
[H SHFT1]
High frequency+1.25kHz
± 50Hz
[L SHFT2]
Low frequency+2.5kHz
[C SHFT2]
Center frequency+2.5kHz
[H SHFT2]
High frequency+2.5kHz
± 3W
33W
Specifications/Remarks
Specifications/Remarks
39