Kenwood TH-D74E Service Manual page 56

TX-RX UNIT (XC1-138E-01) 4/7: VCO-B
3.6V
5
4
3
2
1
A B
SW
R424
VCO2
1k
Q371
RE1C001ZP
33BF
R425
VCO1
SW
1k
Q372
RE1C001ZP
SW
RF SW
Q373
D374
SSM3K15AMFV
RN262CS
VCO_MOD
SW
RF SW
Q374
D375
SSM3K15AMFV
RN262CS
SHIFT_B
C
(No.RA044<Rev.001>) 2-6
D366
MODULATOR
R415 C448
47k 0.5p
OSCILLATOR
D369,D372
Q368
FREQUENCY
MCH3914-H/8/
CONTROL C437
6p
L387 D369 C451 L378
220n 18n
1SV325FT
470p
C453
1000p
325-470MHz
B VCO2
D367
CV_B
MODULATOR
R416 C449
47k 1p
OSCILLATOR
D370,D373
FREQUENCY
Q369
CONTROL
MCH3914-H/8/
C438
12p
L388 D370 C452 L379
270n 1SV325FT 68p 33n
C454
1000p
B VCO1 235-325MHz
TX-RX(XC1-138 2/7)
CN401
D E
2-6 (No.RA044<Rev.001>)
RF AMP
C423
22p
C429 R503
Q389
0.5p 47
2SC5108FT/Y/
C430
0.5p
F G