Block Diagrams - JVC AV-20FD22 Service Manual

BLOCK DIAGRAM
FROM OPERATION BLOCK
VOL UP
VOL DOWN
X101
16MHz
CH UP
CH DOWN
FROM DVD BLOCK
DVD C
DVD Y
Q7009, Q7010
DVD A L
3 1
Q7011, Q7012
L
MIXER
MUTE SW
7
DVD A R
5 IC7001
R
NJM4580M
*G
Q7003
MUTE
ZERO
Q7017
MUTE
SYS MUTE
DVD_VIDEO
BUFFER
Q8003
BUFFER
Q8002
Q7008
MUTE
R
13
CD4053BNSR
*E *F
V L R
J8003 J8002 J8001
RESET
IC102 PST600C
3
*A
33
17 22
23
18
MAIN 24
IC101
26
OEC6063A
31
27
36
32
5
38 37 4
Q204
BUFFER
Q202, Q203
R L
BUFFER
14 19 18
SOUND
AV SW
*D
DECORDER
IC701
IC902
MM1311AD
AN5829S
22 21
31
32
30
2
*B
4
1
7
8
10
25
Q7007
18
MUTE
17
13
L
15
24
3
12 5
Q7006 14
23
Q753
AUDIO SW
BUFFER
IC7002
Q702
Q7016
14 4
BUFFER
BUFFER
2 3 6 2 4
5
V R L V R L
J7002
J7003
No.51821
AV-20FD22 AV-20FD22
TV BLOCK DIAGRAM
1 AT+5V
*B
20
21
22
51
55
1 10
6 42
VIDEO SW
IC602
5
45
LA7151M
*C
8
3
25
24
Q751, Q752 Q754
BUFFER 12
BUFFER BUFFER
Q604
Y
10
13
15
X601
COMB FILTER
4 3.579545MHz CHROMA/IF
10
IC751
IC601 TB1253N
TC90A45P
Q301
MUTE
*B *D
9 10
19 14
DEGITAL SOUND
CONTROL
2
IC301
7
M62420FP
BUFFER
*B *D
2-3 2-4
TU001
SCL SDA AGC IF
4 5 1 11
Q103
H.BUFFER Q205
Q105
PRE AMP
BUFFER
1
*C
6
7
9
R.OUT
14
G.OUT
15
B.OUT
16
Q109
DY801
33
BUFFER
3
V.OUT
38 1
IC401
AN5522
FB401
Q406
Q405
34 H.DRIVE H.OUT
1 F
FBT
S
31
9 HV
SPEAKER
2
9
SP301
4
SOUND AMP
SPEAKER
IC302 12
SP302
AN7522
6
10
8
SOUND+B
HEADPHONE
J301
No.51821
SAW FILTER
4 5
CF203
V801
CRT
*A---AT+5V
*B---P.CON+9V
*C---CHROMA+5V
*D---P.CON+A5V
*E---AT-80
*F---AT+80
*G---P.CON+12V