JVC TH-S77 Service Manual page 31

System control section
GVA10097-A1 (1/2) MAIN PWB
A5V REG SAFETY1 DETECT
D 4 8 3 4
1 S S 1 3 3 - T 2
K I A 7 8 0 5 A P I
I C 4 9 1
1 S S 1 3 3 - T 2
D 4 8 3 1
1 2 . 3 V 5 . 0 V
1 3
0 V
0 V
2
D 4 8 3 3
1 S S 1 3 3 - T 2
F - - 2 0 . 0 V 1
F + - 1 5 . 7 V 2
- V D I S P - 2 2 . 3 V 3
D 5 V 5 . 0 V 4
D G N D 0 V 5
D 3 . 3 V
!
D G N D 0 V 1
C P 4 7 1
B 5 V 4 . 8 V 2
S H O R T
D V D - P O N 4 . 8 V 3
S Y S - P O N 4 . 8 V 4
K T C 3 2 0 3 / O Y / - T
Q 4 9 6 1
5 . 0 V 3 . 4 V
4 . 1 V
D V D 5 V 1
4 . 9 V
D G N D 2
0 V C 4 7 1 9
D G N D 0 V 3
0 . 0 1 / 5 0
D V D 3 . 3 V 4 . 1 V 4
M G N D 0 V 5
C 4 0 1 5
M 9 V 1
1 5 0 p / 5 0
9 . 4 V
M G N D 0 V 2
A + 1 2 V 1 2 . 6 V 3
A G N D 0 V 4
A - 1 2 V - 1 2 . 9 V
5
A G N D
C R - R
C R O U T 0 . 1 V 1
D G N D
0 V 2
C B - B
0 . 4 V
C B O U T 3
D G N D 0 V 4
Y 2 - G
Y / G O U T 5
0 . 5 V
M T Z J 2 . 0 A - T 2
D G N D 0 V 6
C V - Y 1
Y O U T 0 . 5 V 7
S 5 V 4 . 9 V 8
D 4 8 4 1
C
C O U T 0 . 7 V 9
LEVEL SIFT
D 4 V 4 . 1 V 1 0
I C 4 7 3
D 2 V 1 1
3 . 0 V
S N 7 4 A H C T 0 8 N S - X
D 2 V
3 . 0 V 1 2
C 4 7 9 1
T X 0 V 1 3
0 . 1 / 1 6
M G N D 0 V 1 4
0 V
M G N D 1 5
0 V
0 V
R X 2 . 8 V 1 6
0 V
M 5 V 9 . 4 V 1 7
0 V
M 9 V 9 . 4 V 1 8
D V D P W R 0 V
D V D P W R 3 . 2 V 1 9
0 V
U 2 S D T 3 . 2 V 2 0
2 . 7 K
R 4 8 6 6 S 2 U D T 0 V
S 2 U D T 3 . 1 V 2 1
3 3 0
R 4 8 6 4
S L C K 2 2
3 . 2 V
R 4 8 6 3 2 . 2 K S C S
S C S 3 . 2 V 2 3
U C S 3 . 2 V 2 4
2 . 2 K
R 4 8 6 1 C P U R S T
C P U R S T 2 5
3 . 1 V
I C 4 9 3
L B 1 6 4 1
1 2 3 4 5 6 7 8 9 1 0
T C L O S E
T O P E N
C 4 7 9 3
T R A Y + D 4 9 6 2
0 V 5
0 . 1 / 1 6 D 4 9 6 6 1 N 4 0 0 3 S - T 5
T R A Y -
0 V 4
M T Z J 4 . 7 C - T 2
C 4 7 9 4 1 0 0 / 1 6
M G N D
0 V 3
O P E N S W
0 . 6 V
O P E N S W 2
C L O S E S W
C 4 0 1 7
C L O S E S W 0 . 6 V 1
1 5 0 p / 5 0
TRAY DRIVE
E P 4 0 3
TO CN441 OF GVA10096-A1
(SHEET 5)
C N 4 1 1
Q G F 1 0 3 6 C 1 - 2 9
A7V REG
K T C 3 2 0 3 / O Y / - T
R 4 9 2 1
1 0
Q 4 9 2 1
1 2 . 3 V 7 . 1 V
F R
!
7 . 8 V
A 5 V
K R C 1 0 2 S - X
Q 4 8 3 1
3 . 6 V
0 V
A-7V REG
!
- 7 . 8 V
R 4 9 3 1
F R
1 0
- 1 2 . 3 V - 7 . 1 V
Q 4 9 3 1
K T A 1 2 7 1 / O Y / - T
1 0 k R 4 7 6 5
1 0 k R 4 7 6 4
0 V
V R E F -
*
N T S E L ( R G B S E L ) 4 . 9 V
V E R S I O N 1 4 . 9 V
V C R - S / C 4 . 9 V
V C R - S / C
C 4 7 7 1
V E R S I O N 2 0 V
K E Y 1 0 . 1 / 1 6
K E Y - I N 1 4 . 9 V
K E Y 2 C 4 7 7 2
K E Y - I N 2 4 . 9 V
0 . 1 / 1 6
K E Y - I N 3 4 . 9 V
K E Y - I N 4 4 . 9 V
M N 1 0 1 C F 4 9 K R D
V R E F + 4 . 9 V IC471
0 V 4 . 9 V V D D 4 . 9 V
0 V O S C 2 ( 8 M H z ) 2 . 3 V
4 . 9 V
O S C 1 ( 8 M H z ) 2 . 3 V
G N D 0 V SYSTEM MICOM
5 . 0 V 0 . 0 1 / 5 0 C 4 7 0 9 N C 0 V
1 0 0 / 1 6 C 4 7 0 7 N C 4 . 8 V
G N D 0 V
R 4 8 7 2 3 3 0
D I - D O 4 . 8 V
C 4 7 0 8
R 4 8 7 1 3 3 0 N C 0 V
0 . 0 1 / 5 0
R 4 7 6 0
D I - C K 4 . 8 V
2 . 2 k
4 . 7 V
R 4 7 6 1 S 2 U D T
S 2 U D T / T X ( D A T A O U T )
1 0 k
R 4 7 6 2 R 4 8 7 5 3 3 0
U 2 S D T U 2 S D T / R X ( D A T A I N ) 4 . 9 V
1 0 k
3 3 0
R 4 8 7 7 S C L K / C L K 4 . 7 V
F O R F L A S H S C L K
S C S 4 . 7 V
S C S
C P U R S T C P U - R E S E T
4 . 7 V 4 . 7 V
S C L K
6
4 . 7 V
U 2 S D T
5
4 . 6 V
S 2 U D T
4
4 . 8 V
V D D
3
4 . 8 V
R E S E T
2
0 V
D G N D
1
R 4 8 7 6
U C S 3 3 0
C N 4 1 5
D V D P W R
Q G F 1 2 0 5 C 1 - 0 6
R 4 8 9 4 R 4 9 9 6
3 3 0
1 0 K
R 4 9 9 9 0
( F O R F L A S H )
K 4 7 0 1 K 4 7 0 2
Q Q R 0 6 2 1 - 0 0 1 Z Q Q R 0 6 2 1 - 0 0 1 Z
( B 4 1 5 9 ) ( B 4 1 6 0 )
0 V
1 . 4 V
0 V
BACDUP
5 . 0 V R 4 7 9 1 A N D
DETECT D 4 7 0 5
4 . 7 k S H O R T
0 V 2 2 0
R 4 7 0 5
0 . 3 V
Q 4 7 0 2
5 . 0 V 4 . 9 V 2 . 2 / 5 0 K R C 1 0 7 S - X
0 . 3 V 4 . 9 V
2 1 C 4 7 0 3
0 V 0 V
3 . 1 V
0 V
4 . 7 V
RESET
3 4
I C 4 7 2
0 V 0 V
S - 8 0 8 4 0 C N N B - G - W
C N 4 2 0
C N 4 5 2
C N 4 5 1 Q G D 2 5 0 4 C 1 - 0 4 Z
Q G F 1 2 0 5 C 1 - 0 5
Q G F 1 0 3 6 C 1 - 1 3
TO CN501
TO CN511
(SHEET 4)
(SHEET 4)
TO FW541
(SHEET 4)
TO CN702
TO CN442 OF GVA10096-A1
(SHEET 5)
(SHEET 8)
C N 4 1 2 C N 4 0 1
Q G F 1 0 3 6 C 1 - 0 7 Q G F 1 0 3 6 C 1 - 1 5
1 S S 1 3 3 - T 2 D 4 7 0 9
1 S S 1 3 3 - T 2 D 4 7 0 8
( 1 / 2 )
R 6 5 0 4 R C 4 5 5 8 D - X
C 6 5 1 5 C 6 5 1 4 3 R C 4 5 5 8 D - X
I C 4 7 8 0 . 1 / 1 6 0 . 1 / 1 6 0V I C 4 7 5
S H O R T 3 1 R 6 5 0 2
( 1 / 2 ) 0V C 6 5 0 1
1 0 k
0 . 2 2 / 1 6
1 0V 2
R 6 5 0 3
C 6 5 0 3
R 6 5 0 6 4.9V
0V 2 1 k
0V
R 6 5 0 8
1 k 0V 1 0 k
2 S C 3 6 6 1 - X 0V C 6 5 0 2
0 . 2 2 / 1 6 5 6 p / 5 0
R 6 5 0 7
R 4 9 7 1
C 6 5 1 6 5 6 P / 5 0
Q 4 9 7 1
R 6 6 0 3
C 6 6 1 6 5 6 P / 5 0 1 0 k 0V 2 . 2 k 11.1V
1 k
11.1V
1 k Q 4 9 7 2
R 6 6 0 8 C 6 6 0 2
2 S C 3 6 6 1 - X C 4 7 1 2
C 4 7 2 0 R 6 6 0 7 0V
0 . 1 / 1 6 0 . 1 / 1 6 R 4 7 8 3
-12.3V 4 6 1 0 k 5 6 p / 5 0 R 6 6 0 2
- -12.3V
0V R 6 6 1 0 1 0 k S H O R T
7 4 6
0V
C 4 7 2 1
0V 1 0 0 k -
8 5 0V 7 C 6 6 0 1
0 . 1 / 1 6 +
I C 4 7 5 0 . 2 2 / 1 6
R 6 6 0 4
I C 4 7 8 0V 8 5 R C 4 5 5 8 D - X
C 6 6 1 4 C 6 6 0 3 +
12.3V C 6 6 1 5
0 . 1 / 1 6 0 . 2 2 / 1 6
S H O R T R C 4 5 5 8 D - X ( 2 / 2 ) 0 . 1 / 1 6 12.3V 0V R 4 7 8 4
C 4 7 1 3
( 2 / 2 )
1 0 k 0 . 1 / 1 6 S H O R T
R 6 6 0 6
C N 4 1 6
Q G A 2 5 0 1 C 1 - 0 5
R 4 8 8 8
3 3 0
D 4 7 0 7
R 4 8 8 7 N I
R 4 8 8 9
3 3 0
1 S S 1 3 3 - T 2
S - M U T E
N O I N S E R T
A M - B E A T
0 V A M - B E A T
3 3 0 R 4 7 7 5
0 V T U - C E B 4 2 5 6
3 3 0
R 4 7 7 6 Q U Y 1 5 0 - 0 5 0 Y
0 V T U - C K
1 0 0 R 4 7 7 7
0 V T U - D O
R 4 7 7 8 E P 4 0 1
4 . 8 V N C
0 V T U - D I
1 0 0
0 V N C S W P O N
0 V N C S M U T E
0 V R D S - D A T A
R 4 7 8 0
0 V N C
3 3 0
0 V T U - P O N
4 . 8 V D V D - P O N
4 . 8 V S W - P O N
4 . 8 V S Y S - P O N
H P - D E T
0 V H P - D E T
K T A 1 5 0 4 / Y G / - X
R 4 7 5 8
0 V N C
4 . 9 V
0 V I N H 1 0 k
0 V M I C M U T E
R 4 7 0 0
2 . 2 K 4 . 9 V
0 V V I D E O - R G B
4 . 8 V V I D E O - Y C M I X
0 V V I D E O - M U T E 2
R 4 7 5 9
1 0 k
0 V V I D E O - M U T E 1
0 V V I D E O - S W
0 V D V D R S T 0 V
R 4 7 5 6
4 . 8 V H P S W
N I
S-MUTE DRIVER
R 4 7 1 0
1 0 0 k
C 6 1 0 1
4 . 7 / 5 0
C 4 7 1 0
0 . 0 1 / 5 0
C 4 7 1 1 I C 4 7 7
4 7 0 / 6 . 3 B R 2 4 L 0 8 F - W - X
5 . 0 V
8 7 6 5
N I
4 . 9 V
Q 4 7 0 3
K R C 1 0 2 S - X
0 V
Q 5 1 1
K R C 1 0 2 S - X
0 V
1 2 3 4 S T A N D - B Y
C 6 2 0 1
EEP ROM
4 . 7 / 5 0
R 6 3 0 4
2 7 0
R 6 3 0 5
2 7 0
A V V L R
M I C M U T E
C 4 7 0 0
C N 4 1 3 AV COMPULINK
C N 4 6 0
Q G A 2 5 0 1 C 1 - 0 2 Q G F 1 2 0 5 C 1 - 0 9 W I T H M I C
1 0 / 5 0 Q G F 1 2 0 5 C 1 - 0 5 W I T H O U T M I C
E P 4 0 2
TO FW403
(SHEET 5)
TO CN511
(SHEET 6)
TO TUNER
C N 4 1 0
Q G F 1 2 0 5 C 1 - 1 1
2 0 9 X - B L O C K
B U 1 9 2 4 F - X
TU9V REG
C 4 0 7 7 3 3 P / 5 0
S C L
Q 4 0 9 1 2 . 5 V
R 4 0 1 3
1 2 . 3 V 0 V N C
6 . 8 K 0 V
O S C O
2 . 4 V
O S C I
R 4 0 1 4 1 2 . 0 V
1 . 8 V
6 . 8 K C 4 0 7 8
D V D D
3 3 P / 5 0
5 . 0 V
4.9V
D V S S
0 V
C 4 0 1 2 C 4 0 7 3
N C
0 . 1 / 1 6
0 . 0 0 8 2 / 5 0 0 V
N C
0 V
1 2 . 2 V
C 4 0 7 1
0 V
Q 4 0 9 2 4 7 / 2 5
0 V
K T C 3 8 7 5 / Y G / - X V E R . E
C 4 0 9 1
RDS DECODER
2 2 / 5 0
R 4 9 9 7
R 4 9 5 2 0
Q 4 9 5 1 K R A 1 0 4 S - X 2 2 K
4 . 7 V 4 . 7 V
7 6 5 4 3 2 1
0 V
0 V
0 V
8 9 1 0 1 1 1 2 1 3 1 4
- 7 . 1 V
I C 4 7 4
R 4 9 9 8
0
C D 4 0 6 6 B M - X
R C 4 5 5 8 D - X ( 1 / 2 ) C 6 5 1 7
R 6 5 1 5 3
I C 4 7 6 4 7 0 p / 5 0
1 k
C 6 5 1 1 R 6 5 1 1
0V 1 0V
R 6 5 1 8 4 . 7 / 5 0 3 3 k
2 2 2 k
R 6 5 1 6
0V
R 4 9 7 4 1 0 k
1 8 0 k
C 6 5 1 2 5 6 p / 5 0
1 0 k
R 6 6 1 6
C 6 6 1 2
R 4 7 8 5
5 6 p / 5 0
S H O R T
R 6 6 1 8 R 6 6 1 1
-12.3V
2 2 k 3 3 k
C 4 7 1 4 4 6
0 . 1 / 1 6
R 4 9 7 5
- 0V
1 8 0 k 7
C 6 6 1 1
0V
8 5 4 . 7 / 5 0
R 6 6 1 5 +
12.3V
1 k
I C 4 7 6
0V
R 4 7 8 6 C 4 7 1 5 R C 4 5 5 8 D - X
S H O R T 0 . 1 / 1 6
4 7 0 p / 5 0
( 2 / 2 ) C 6 6 1 7
Q 4 8 0 1
Q 4 8 1 1 !
K R A 1 0 2 S - X
- 1 2 . 0 V 1 2 . 3 V 1 2 . 3 V
0 V
Q 4 8 1 2
0 V
K R C 1 0 2 S - X
4 . 8 V
Q 4 8 2 1
4 . 9 V K R C 1 0 2 S - X 5 . 0 V
0 V
0 V
K R C 1 0 2 S - X
Q 4 8 0 2
0 V 0 V
SW-PON AM-BEAT CUT
HP AMP
R C 4 5 5 8 D - X
I C 6 0 1
0 V ( 1 / 2 )
3 C 6 1 0 3
4 7 / 2 5
Parts are safety assurance parts.
1
R 6 1 0 2
2 0 V
R 6 1 0 6
C 6 1 0 2
0 V When replacing those parts make
3 3
2 . 2 k 1 0 P / 5 0
R 6 1 0 3
6 8 k sure to use the specified one.
C 6 1 0 5
0 . 0 1 / 5 0
*PARTS LIST
6 8 k
R 6 2 0 3
S 5 5 / S 5 8
C 6 2 0 2
1 0 P / 5 0 E U 1
( 2 / 2 ) E
R 6 2 0 2
2 . 2 k 1 1 . 3 V R 4 7 5 2 P - U P X 2 7 k X
6
8 R 6 2 0 6 V E R S I O N 1
0 V - 7 3 3
( V E R S I O N )
R 4 7 7 1 P - D O W N 1 0 k 1 0 k 1 0 k
0 V
5
+ C 6 2 0 3
4
0 V R 4 7 6 3 P - U P X
C 6 2 0 6 4 7 / 2 5
3 3 0 P / 5 0 V E R S I O N 2
- 1 1 . 3 V
( M O D E L )
I C 6 0 1 C 6 2 0 4 R 4 7 7 3 P - D O W N 1 0 K
5 N C
R C 4 5 5 8 D - X 0 . 1 / 1 6
4 N C P - U P
F O R D E V I C E K E Y R 4 7 5 1 1 0 k 1 0 k X 1 0 k
( P A L / R G B )
N T S E L
3 A V C O W R I T I N G
/ R G B S E L
P - D O W N X
R 4 7 7 4 X X 1 0 k
2 B G N D ( N T S C / Y C )
R 4 8 9 1
1 A V C I
V C R - S W R 4 7 5 3 1 0 k
N I
2
1
E M C
3
J 4 8 9 1
R 4 8 9 2
N I N I
C 4 0 1 3
N I
4
E : B / E / E N / E V / E E
U 1 ( P A L ) : A / U S / U B / U F
( N T S C ) : U T / U P
U 3 ( P A L ) : U X / U G
I C 4 8 1
R 4 0 7 4
1 0 K
Q O U T
C 4 0 7 5
2 . 2 V
2 . 2 / 1 0
S D A
2 . 7 V
V R E F
2 . 6 V
M P X
0 V
C 4 0 7 6
A V D D
2 7 0 P / 5 0
5 . 0 V
A V S S
0 V
G N D
0 V
C M P
2 . 6 V
T V - S O U N D / A U X
S E L E C T S W
V E R . E
R 4 9 9 7 / R 4 9 9 8 F O R J / C / U
S C A R T - L I N
S C A R T - L I N
S C A R T - R I N
S C A R T - R I N
A G N D
A + 1 2 V
A + 1 2 V
V S 3
V S 3
V S 1
V S 1
A 5 V
A 5 V
A G N D
A G N D
C
C
C V - Y 1
C V - Y 1
Y 2 - G
Y 2 - G
C B - B
C B - B
C R - R
C R - R
A G N D
A G N D
B L A N K - C T L
B L A N K - C T L
V C R - S / C
V C R - S / C
V I D E O - S W
V I D E O - S W
V I D E O - M U T E 1
V I D E O - M U T E 1
V I D E O - M U T E 2
V I D E O - M U T E 2
V I D E O - Y C M I X
V I D E O - Y C M I X
V I D E O - R G B
V I D E O - R G B
S 5 8 S 6 6 S 7 7
U 1 U 3
U 1 U 1
E
2 7 k X 2 7 k 2 7 k 8 . 2 k
1 0 k 1 0 k 1 0 k
1 0 k 1 0 k
2 7 K 1 5 K 8 . 2 K
1 0 K
1 0 K 1 0 K
1 0 k 1 0 k 1 0 k X 1 0 k X 1 0 K
X X X X 1 0 k X
1 0
1 0 k 1 0 k 1 0 k
SHEET 2
2-3