Toshiba 23HL84 Service Manual page 45

A B
8
FROM/TO SCALER1(1/2)
7
6
5
FROM/TO ADC
4
3
FROM/TO REG/HD/VD
2
P.CON+5V
1
A B
G-31
C
BUS TRANSCEIVER SCHEMATIC DIAGRAM
RE0
RE1
RE2
RE3
RE4
RE5
RE6
RE7
GE0
BUS_SW
GE1
IC805 SN74CBT16233DGGR
GE2
0
GE3
NC 1B1 1A
GE4
GE5
0
GE6
NC 1B2 2B1
GE7
0
BE0
NC 2A 2B2
BE1
BE2
0
BE3
NC 3B1 3A
BE4
BE5
0
BE6
NC 3B2 4B1
BE7
0
S_CLK
NC 4A 4B2
S_DE
S_HS
S_VD 3.3
S_CLK
5B1 5A
3.3
DDCK
5B2 6B1
3.3
SWS_DE
6A 6B2
3.3
S_HS
7B1 7A
3.3
DDHS
7B2 8B1
DPR7 3.3
S_VD/DDVS
8A 8B2
DPR6
DPR5
DPR4 0
GND GND
DPR3
DPR2
C874
DPR1 5.0
VCC VCC
DPR0
0.1 B
DPG7 3.3
RE7
9B1 9A
DPG6
DPG5
DPG4 3.3
DPR7
9B2 10B1
DPG3
DPG2
DPG1 3.3
RE6/DPR6
10A 10B2
DPG0
DPB7
3.3
RE5
DPB6
11B1
11A
DPB5
DPB4
3.3
DPR5
DPB3
11B2 12B1
DPB2
DPB1
3.3
RE4/DPR4
DPB0
12A 12B2
DDHS
3.3
DDVS RE3
13B1 13A
DDCK
3.3
DPR3
13B2 14B1
3.3
RE2/DPR2
14A 14B2
3.3
RE1
15B1 15A
3.3
DPR1
15B2 16B1
3.3
RE0/DPR0
16A 16B2
3.3
PIXEL_PC-H
SEL1 TEST1
3.3
SEL2 TEST2
L801
47uH
NLCV32T
GND
NOTE:THE DC VOLTAGE EACH PART WAS
C
D E
(LCD PCB)
BUS_SW
IC806 SN74CBT16233DGGR
0
3.3
GE7
1B1
NC
0
3.3
DPG7
1B2
NC
0
3.3
GE6/DPG6
2A
NC
0
3.3
GE5
3B1
NC
0
3.3
DPG5
3B2
NC
0
3.3
GE4/DPG4
4A
NC
3.3
3.3
GE3
S_CLK/DDCK 5B1
3.3
4.0 DPG3
S_DE
5B2
0
3.3
GE2/DPG2
6A
NC
3.3
3.3 GE1
S_HS/DDHS
7B1
3.3
3.3 DPG1
S_VD
7B2
3.3
3.3 GE0/DPG0
DDVS
8A
0
0
GND
C876
C875 5.0
5.0
VCC
0.1 B
0.1 B
3.3
3.3 BE7
RE7/DPR7
9B1
3.3
3.3
DPB7
RE6 9B2
3.3
3.3 BE6/DPB6
DPR6
10A
3.3
3.3 BE5
RE5/DPR5
11B1
3.3
3.3 DPB5
RE4
11B2
3.3
3.3 BE4/DPB4
DPR4
12A
3.3
3.3 BE3
RE3/DPR3
13B1
3.3
3.3 DPB3
RE2
13B2
3.3
3.3 BE2/DPB2
DPR2
14A
3.3
3.3 BE1
RE1/DPR1
15B1
3.3
3.3
DPB1
RE0 15B2
3.3
3.3 BE0/DPB0
DPR0
16A
3.3
0 PIXEL_PC-H
SEL1
3.3
0
SEL2
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
MEASURED WITH THE DIGITAL TESTER
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
DURING PLAYBACK.
D E
F G
3.3
GE7/DPG7
1A
3.3
GE6
2B1
3.3
DPG6
2B2
3.3
GE5/DPG5
3A
3.3
GE4
4B1
3.3
DPG4
4B2
3.3
GE3/DPG3
5A
3.3
GE2
6B1
3.3
DPG2
6B2
3.3
GE1/DPG1
7A
3.3
GE0
8B1
3.3
DPG0
8B2
0
GND
C877
5.0
VCC
0.1 B
3.3
BE7/DPB7
9A
3.3
BE6
10B1
3.3
DPB6
10B2
3.3
BE5/DPB5
11A
3.3
BE4
12B1
3.3
DPB4
12B2
3.3
BE3/DPB3
13A
3.3
BE2
14B1
3.3
DPB2
14B2
3.3
BE1/DPB1
15A
3.3
BE0
16B1
3.3
DPB0
16B2
0
TEST1
0
TEST2
F G
H
8
7
FROM/TO SCALER2
RE7/DPR7
RE6/DPR6
RE5/DPR5
RE4/DPR4
RE3/DPR3
RE2/DPR2
RE1/DPR1
RE0/DPR0 6
GE7/DPG7
GE6/DPG6
GE5/DPG5
GE4/DPG4
GE3/DPG3
GE2/DPG2
GE1/DPG1
GE0/DPG0
BE7/DPB7
BE6/DPB6
5
BE5/DPB5
BE4/DPB4
BE3/DPB3
BE2/DPB2
BE1/DPB1
BE0/DPB0
S_CLK/DDCK
S_HS/DDHS
S_VD/DDVS
SWS_DE
PIXEL_PC-H
4
3
2
PCB340
1
CED016
H
G-32