Panasonic TY-TP42P8-S, Service Manual

Page: 52 / 95

9.4. Detail Block Diagram (2 of 3)
18
21
AD6
AD0
17
+5V
9
7
1
ILEDCOM
LEDON
J19
+5V 19
+5V
13
10
SEL3
SEL0 SEL0 10
SEL3
ILEDCOM
LEDON
J18
+5V
18
21
AD6
19
+5V
9
7
1
AD0
17
+5V
13
+5V
3 TO 8
DECODER
LINE
3 TO 8
DECODER
LINE
3 TO 8
DECODER
LINE
U1
U5
AD3-6
AD0-2
LED
DRIVE
LED
SINK
MATRIX
LED
L1-L43
INH CH0
COM
+5V
Y3
A
B
C
G2A
G2B
SELCOM
Q7-Q14
Q1-Q6
L.DRV1-6
L.SINK1-8
ILEDCOM
J14
LEDON
SEL0
SEL3
+5V
AD0
+5V
AD6
+5V
ILEDCOM
18
J16
9
TRANSISTOR
8
AD0-2
B
14
DECODER
U4
19
C
7
SELCOM
OPTICAL
U8
20
SEL0
U7
17
Z
U6
LEDON
J17
AD6
13
RANGE1
15
13
16
U3
GAIN
INH
PHON
7
DECODER
10
21
CH0
X
PHOTO-
Y
19
10
15
Z1
U5
AD0
+5V
1
21
NOISE
CANCEL
PH.SINK1-8
A
LINE
18
PHCOM
RANGE2
COM
1
U1
3 TO 8
16
PH.DRV1-6
+5V
SEL3
17
MATRIX
8
Y3
AD3-6
3 TO 8
CONTROL
Q1
+5V
20
P1-P43
PENDATA
9
LINE
14
10
X
8
10
RANGE1
SEL0
CONTROL
SEL3
U1
9
1
20
3 TO 8
21
20
C
CH0
U3
17
COM
+5V
Q1
LEDON
Z
PHON
16
Y
21
3 TO 8
SELCOM
+5V
DECORDER
PH.SINK1-8
1
U6
INH
AD6
U4
15
DECODER
AD0
PH.DRV1-10
Z1
15
OPTICAL
AD3-6
17
19
16
18
AD0-2
7
B
PHCOM
8
NOISE
18
U7
A
RANGE2
U5
14
+5V
19
CANCEL
LINE
Y2
GAIN
7
14
LINE
13
9
13
PENDATA
U8,U9
Z
CONTROL
MATRIX
19
P1-P78
10
9
1
Y
PH.DRV1-10
9
21
13
U5
14
GAIN
7
COM
16
J11
15
19
DECORDER
16
3 TO 8
SELCOM
21
LINE
20
13
U6
INH
PH.SINK1-8
CANCEL
1
LINE
U4
C
AD3-6
OPTICAL
CH0
TRANSISTOR
AD0-2
J10
7
Q1
B
Y1
X
17
PHOTO-
8
U1
U3
17
18
Z1
U7
15
10
U8,U9
A
14
20
3 TO 8
8
NOISE
DECORDER
18
+5V
AD0
PHON
AD6
+5V
PHCOM
SEL3
PENDATA
RANGE2
RANGE1
SEL0
+5V
LEDON
PH ON,RANGE1,2 PH ON,RANGE1,2 PH ON,RANGE1,2
+5V +5V
+5V
LEDON
+5V
SEL0
PENDATA
SEL3
AD6
RANGE2
+5V
AD0
+5V
PHON
RANGE1
PHCOM
ILEDCOM
X-LED 4 BOARD
X-PHOTO 2 BOARD
X-PHOTO 3 BOARD
X-PHOTO 4 BOARD
U3
U6
18
21
SELCOM
Q11-Q18
U6
Q1-Q10
L.DRV1-10
COM
L.SINK1-8
1
+5V
17
Y2
13
19
9
7
10
U1,U2
U5
AD3-6
+5V
AD0-2
3 TO 8
LED
DECODER
LINE
3 TO 8
MATRIX
LED
L1-L78
INH CH0
A
B
U3
C
G2A
G2B
1
DRIVE
LED
SINK
18
21
DECODER
LINE
3 TO 8
DECODER
LINE
19
13
10
17
X-LED 3 BOARD
9
7
(50inch)
(42inch)
L1-L75
7
LINE
18
9
X-LED 2 BOARD
3 TO 8
COM
L.DRV1-10
CH0
L1-L78
1
3 TO 8
Q1-Q10
+5V
10
LED
A
19
DECODER
SELCOM
INH
LED
LINE
18
21
AD3-6
7
G2B
DECODER
U1,U2
B
10
+5V 17
9
LINE
J14
19
13
3 TO 8
C
DRIVE
Y1
1
U5
13
MATRIX
AD0-2
DECODER
21
J13
G2A
17
L.SINK1-8
U6
U3
ILEDOUT SW
+5V
AD0
SEL0
SEL3
ILEDCOM
+5V
+5V
AD6
LEDON
LED
SINK
Q11-Q18
C
B
A
MULTI-
8ch
PLEXER
COM
INH
ANALOG
C
8ch
COM
MULTI-
B
A
INH
ANALOG
PLEXER
C
8ch
MULTI-
COM
INH
ANALOG
PLEXER
B
A
PHOUT SW
ILEDCOM ILEDCOM ILEDCOM
P1-P78(50inch)
P1-P75(42inch)
ILEDOUT SW ILEDOUT SW
TRANSISTOR
PHOTO-
MATRIX
PHOUT SW PHOUT SW
J27
J23
J11
(50inch)
(42inch)
TO
Y-PHOTO 2 BOARD
(J10:50inch)
TO
X-PHOTO 1 BOARD
(J11)
X-LED 1
TO
50inch only
(50inch)
(42inch)
TO
Y-PHOTO 2 BOARD
(J20:42inch)
(50inch)
(42inch)
J22
J10
J13
J26
(50inch)
(42inch)
(J14)
BOARD
NO
USE
SEL0-3 SEL0-3 SEL0-3
SEL0-3 SEL0-3 SEL0-3
TY-TP42/50P8-S
Detail Block Diagram (2 of 3) TY-TP42/50P8-S
Detail Block Diagram (2 of 3)
TY-TP42P8-S / TY-TP50P8-S
52