Sharp LC-26SB14U Service Manual - Page 44

Av Switch Schematic Diagram

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A B C D E F AV SWITCH SCHEMATIC DIAGRAM 8 (POWER PCB) 7 G H 8 7 6 6 5 4 3 2 1 A H-31 AV3_PB AV3_Y W883 W884 W885 P.CON+9V AV3_PR SW_L AV3/AV4_PR R6510 1K AV3/AV4_PB AV3/AV4_Y SW_R R6511 1K C6509_1 16V 47 YK C6512 1B 9 10 11 12 13 14 15 16 AV_SW IC IC6502 0 GND NJM2750M(TE1) IN1a 4.8 1 4.8 OUTa CNT1 3.2 2 9.6 4.8 C6513_1 4.8 16V 47 YK Vcc IN3a Vref 3 IN2a 4.8 NC CNTT2 3.2 4 IN4a 5 4.8 4.8 OUTb 0 NC NC 4.8 IN3b 6 4.8 IN1b IN2b 7 4.8 NC IN4b 8 4.8 AL1 ASW1 ASW2 DVI_A_IN_L AR1 DVI_A_IN_R AL2 AR2 NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE B C D NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL. E F FROM JACK AL1 AR1 AL2 AR2 DVI_A_IN_L DVI_A_IN_R AV3_Y AV3_PB AV3_PR FROM/TO JACK2 ASW2 ASW1 SW_L SW_R AV3/AV4_Y AV3/AV4_PB AV3/AV4_PR FROM REGULATOR P.CON+9V GND G 5 4 3 2 PCB240 CEG353 1 H H-32

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A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
IC6502
NJM2750M(TE1)
AV_SW IC
1
10
11
12
13
14
15
16
2
3
4
5
6
7
8
9
W883
W884
W885
R6510
1K
R6511
1K
C6512
1
B
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
C6513_1
47
16V
YK
C6509_1
47
16V
YK
P.CON+9V
AL1
AR1
AV3_PR
AL1
AL2
AR2
SW_L
ASW1
DVI_A_IN_L
DVI_A_IN_R
AV3_Y
AV3_PB
AV3/AV4_PR
AV3_PB
AV3_PR
ASW2
AV3/AV4_PB
DVI_A_IN_L
AV3/AV4_Y
SW_R
AR1
ASW2
ASW1
SW_L
AV3_Y
DVI_A_IN_R
SW_R
AV3/AV4_Y
AV3/AV4_PB
AL2
AV3/AV4_PR
AR2
P.CON+9V
GND
H-32
H-31
FROM JACK
AV SWITCH SCHEMATIC DIAGRAM
PCB240
CEG353
FROM REGULATOR
(POWER PCB)
NC
NC
IN1a
CNT1
IN3a
CNTT2
IN4a
IN2a
IN1b
IN2b
IN4b
IN3b
NC
OUTb
Vref
Vcc
OUTa
GND
4.8
4.8
4.8
4.8
3.2
4.8
3.2
4.8
NC
4.8
0
4.8
4.8
4.8
9.6
4.8
0
FROM/TO JACK2