Panasonic TH-42PX20U/P Operating, Service Manual

Page: 298 / 406

14.56. C1, C2, C3, C4 and K-Board Block Diagram
URL
UML
IC7105
C1
CLKR
USL
CA2
D4
D3
UMH
17
UEH
19
CLK
C12
20
D3
BUFFER
D2
CA3
CLK
Board (Front View)
FROM D31
CA1
D5 C11
UEL
D4
Data drive (Upper Right)
USH
CLK
18
D2 CLK
CA4
D5
IC7106
BUFFER
IC7107
BUFFER
IC7101
CLOCK
D9
Board (Front View)
FROM D32
BUFFER
CA5
D11
D11 CA8
CLK
C21
IC7307
IC7305
BUFFER
IC7301
CLOCK
C2
CLKL
CA6
D10
Data drive (Upper Left)
CLK
D9
4
2
D10
C22
D8
1
3
CLK
BUFFER
CLK
D8
IC7306
CA7
URH
URL URH UML USL UEL UMH USH UEH
5
12
3
7
SS32
Vda75V
6
TO
8
C32
10
4
2
9
SOS URL URH UML USL UEL UMH USH UEH
USH
UEH
UML
USL
UEL
URL
UMH
URH
SOS
Vda75V
Vda75V
Vda75V
Vda75V
IC7701
IC7706
BUFFER
IC7707
CLOCK
Vda75V
FROM D34
BUFFER
Vda75V
Vda75V
Vda75V
BUFFER
IC7705
Board (Front View)
C3
Data drive (Lower Left)
C4
Board (Front View)
Data drive (Lower Right)
16
C41
15 14 13 CLKR
20 1
18 3
C33
4
2
C43
17
19
CLK
CB4
CLK
CB1
D16
CB3
D15 CLK CLK D14 D13
CB2 CB5
CLK
CB7 CB8
CLK D22 D20 D21 D19 CLK CLK
CB6
IC7506
CLOCK
BUFFER
IC7507
IC7505
IC7501
BUFFER
BUFFER
CLKL 21 22 20 19 LED_R REMOCON
6
Q7562
LED_G
AKOPT
LED R
C44
2
3
LED G
REMOCON
C31
Q7561
7
FROM D33
OPT
2
1
C42
SS42
TO
Vda75V
Vda75V
LED R
LED G
REMOCON
OPT
CATS SENSOR
5V
7
STBY5V
IC300
Q301
RM300
G
R
D302
VO
U
T
VIN
STBY5V
Q300
6
REMOCON SENSOR
K24
2
3
Q305
Remocon Senser
K
ON-LED(LED-G)
K12
TO
2
3
DG12
STB-LED(LED-R)
TH-42PX20U-P
C1, C2, C3, C4 and K-BOARD BLOCK Diagram TH-42PX20U-P
C1, C2, C3, C4 and K-BOARD BLOCK Diagram
118