Kenwood TH-D74E Service Manual page 33

4.5 Adjustment Points
TX-RX UNIT (2/7) Component side
CV_B
CV_A: VCO lock voltage (A-band)
CV_B: VCO lock voltage (B-band)
* Check the VCO lock voltage with the VCO shield case attached.
4.6 Common Section
Item
1.VCO Lock Battery terminal:7.4V
Voltage Check 1) Frequency: 410.000MHz
A-Band
2) Frequency: 173.995MHz
B-Band VCO1
3) Frequency: 266.945MHz
VCO1
4) Frequency: 176.950MHz
VCO2
5) Frequency: 176.945MHz
VCO2
6) Frequency: 266.950MHz
CV_A
Condition
Test-
equipment
DVM
DVM
DVM
DVM
DVM
DVM
Measurement
Unit Terminal Unit Parts Method
TX-RX CV_A
(2/7)
TX-RX CV_A
(2/7)
TX-RX CV_B
(2/7)
TX-RX CV_B
(2/7)
TX-RX CV_B
(2/7)
TX-RX CV_B
(2/7)
Adjustment Specifications
/Remarks
Check 1.5V or more
Check 4.9V or less
Check 4.9V or less
Check 0.5V or more
Check 4.9V or less
Check 0.5V or more
(No.RA044<Rev.001>)1-33