Kenwood TH-D74E Service Manual page 55

TX-RX UNIT (XC1-138E-01) 3/7: VCO-A
5
4
Q387
SSM3K15AMFV
SHIFT_A
3
2
1
A B
3.2V
SPEED UP
FREQUENCY CONTROL
L413 D381 C542
CV_A
4.7u
18p
1SV325FT
C543
L411
SW
270n
0.01u
FREQUENCY CONTROL RF SW
A VCO
158.85-231.15MHz
CN500
EB760BE-0416A
Fin_A 2 1
GND 4 3
GND 6 5
NC 8 7
GND 10 9
GND 12 11
GND 14 13
CV_A 16 15
TX-RX(XC1-138 2/7)
CN501
C
(No.RA044<Rev.001>) 2-5
RIPPLE
Q385
FILTER
DSC9A01/T/
R471 L407
10u
22 (D)
OSCILLATOR
Q386
MCH3914-H/8/
C520
22p
C527 R467
Q383
0.5p 47
2SC4726(P,Q)
RF AMP
L408
22n
C540 C536 C529 C519
1000p 12p 22p 2p
Q384
2SC4726(P,Q)
RF AMP
VCO_A
GND
GND
GND
33CA
GND
GND
SHIFT_A
D E
2-5 (No.RA044<Rev.001>)
C509
33p
C517
Q381
22p
2SC4726(P,Q)
RF AMP
F G