BLOCK DIAGRAM
AV-27230 AV -27230
AUDIO
VARI.OUT
INPUT
1
S-VIDEO
AUDIO
INPUT
2
AUDIO
VIDEO
VIDEO
P
P
IC 602
AUDIO AM P
OUTIN
RL
L
1 13
IC 652
AMP
L
R
Y
C
L
R
L
R
Y
B
R
IC 631
SW
AUDIO
TO IC 101
( )
R
8
6
FRONT
( )
VIDEO IN
VIDEO SW
IC 801
6
8 10 12 14
Y
V
L
R
SP
L
R
VY
IC 201
DIGITAL
COM B
FILTE R
VC
VTV
MPX
79
IC 651
M TS&TONE CO NTRO L
3839
VARI.OUT
RL
26 25
IN
IC 821
Y/C SW
3637
RL
RL
IF
TUNER
Y
4 3 2 1
8 9 10 11
FRONT
( )
AUDIO IN
BU FFER
Q 041
Q 101
IF AM P
Y
C
F901
KEY
32
34
YS B G R
39 40 41 42
SF101
C F901
POW ER PW B
LED
Q 023
BU FFER
C F041
4.5 FILTE R
SIF
4
1
IC 701
MICRO COM PUTER
17
VC
4.5 TRAP
VC
Q 361
BU FFER
C
C
42
C
R Y901
REMOCON
RECEIVER
Q 272
BU FFER
C F021
V.TV
DET
55
IC 101
1CHIP DECODER
47
Y
Y
D 911
RECT
( )
P
Y
BGR
IC 702
MEMORY
INPUT
2
434445
BPR
3816151476
VD
F902
34
HD
R / G / B
(TO IC 801)
(TO IC 651)
Q 521
H.DRIVE
IC 921
POW ER
REGULATOR
IC 421
V.OUT
VIDEO
L
AUDIO
R
24
Q 522
H.OUT
T522
FBT
B1
MAIN PW B
RGB
OUT
CRT SOCKET
PW B
FRONT
IN
HB
HEATER
X-RAY
HV
FOCUS
SCREEN
V01
CRT
DY01
No.51803
2-32-4
No.51803
AV-27230 AV -27230
CIRCUIT DIAGRAMS MAIN PW B CIRCUIT DIAGRAM
MAIN PWB
SFD-1003A-M2
(AV-27230/
SFD-1004A-M2
( AV-27230/R
R658
15K 1/10W
NRVA02D-153X
S
)
)
NOTE
l For the parts m arked in the circ u it diagram , re fer to the parts list.
1/4W
No.51803 No.51803
2-52-6
CRT SKT PWB
FOR TEST