Read Sony HCD-VX222 / MHC-VX222 Service Manual online
30
30
HCD-VX222
6-9. SCHEMATIC DIAGRAM – MAIN SECTION (2/5) –
• See page 21 for Waveforms. • See page 49,50 for IC Block Diagrams.
JK101
R3
C103
R104
C104
R107
R101
R102
R108
R103
CF101
CF102
C102
R105
R139
C110
R117
C111
R111
R112
R113
R114
R115
R116
C112
C114
C115
C116
C117
C118
R135
R136
C119
R118
R119
R120
R121
R122
R123
C120
X101
C123
C124
R124
C125
C126
RV101
C128
C129
C130
C134
C135
C136
C127
R126
R127
R128
R129
C106
C107
C108
R110
C141
C143
C137
R131
R132
R137
C140
R130
R4
R138
R7
R109
D101
C144
C101
C113
C121
C122
Q103
Q104
C133
R125
T101
JR633
Q102
C105
Q101
JR606
L107
JR634
JR635
JR603
JR
607
JR
109
JR641
JR642
JR602
D104
D108
C142
R106
C139
C131
C132
R133
R134
C109
0
0.01
150
47
16V
0
47
680
330
680
0.01
1.5k
0
0.01
100k
0.01
100
4.7k
4.7k
4.7k
10k
100
0.01
47
16V
0.01
2.2
50V
47
16V
0.01
4.7k
3.3k
0.01
100
10k
10k
1k
10k
10k
0.01
4.5MHz
0.001
0.001
220
47
16V
0.01
22k
0.01
0.01
0.01
0.047
4.7
50V
4.7
50V
1
50V
4.7k
2.2k
560
560
100
16V
0.01
10
50V
10k
0.047
22
16V
10
50V
12k
2.2k
100
1
50V
10k
0
100
0
47
DA204K
47
16V
0.01
0.47
50V
22p
CH
33p
CH
2SC1623
2SC1623
0.22
50V
4.7k
0
UN4111
0.01
2SC2410SN
0
0
0
0
0
0
0
0
0
0
DTZ-TT11-6.8B
1SS355TE
100p
330
220p
0.015
0.015
470
470
4p
54
16
13
14
10
TU R TU L
22
23
24
25
26
27
28
FM
75
Ω
AM
XIN
VCO
CE
DI
CLK
DO
FM
M
W
FM
IF
IF FEO
FM
/AM
XOUT
GM
ND
VT2
PD1
PD2
VT1IN
VT1
B+
SW
VT2IN
FM
OSC
AM
OSC
REG
AFC
AGC
M
PX
M
PX
OSC/OUT
AM
RF
AM
M
IX
AM
IF
AM
/FM
OU
T
VCO STOP
OSC
VCC
GND
AM
/FM
L OUT
R OU
T
IF OUT
IF M
UT
ST LED
TU LED
FM
DET
FM
SD
FM
IF
ST LED
TU LED
ST M
UTE
+B
GND
VT
GND
GND
ANT IN
OSC OUT
GA
FE101
IF OUT
RB101
IFT101
IC102
LC72130
IC101
BA1450
PB641
PLL
FM/AM
FRONTEND,
IF AMP,MPX
AMP
Q103,104
FM TUNED LEVEL
+B
SWITCH
RF IF AMP
(4/5)
(1/5)
(3/5)
(5/5)
(Page 29)
(Page 32)
(Page 33)
(Page 31)
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