Sharp LC-26D44E (serv.man6) Service Manual ▷ View online
LC-26D44E/S/RU-BK/GY
5 – 21
15. IC8201 (VHIBD8143MU-1Y)
High-accuracy gradation voltage generation IC with a built-in DAC
The high-accuracy gradation voltage generation IC with a built-in DAC, BD8143MUV, has a built-in 1chip integrating the setting value control by the
serial signal, high-accuracy 10bit DAC and buffer amp.
serial signal, high-accuracy 10bit DAC and buffer amp.
Description:
• Reduced number of parts due to 1chip
• Built-in 10bit DAC
• DAC output buffer amp (12ch)
• Amplifier input/output switching function (CTL)
• 3-wire serial interface
• Temperature protection circuit
• Power ON reset circuit
110
EX_DT[27]
I/O
BD4CIF
250
R_VSSPLL1
GND
Z7RSTDDRVGND
111
EX_DT[28]
I/O
BD4CIF
251
R_VSSPLL2
GND
Z7RSTDDRVGND
112
VDDC
1.5V
VDDC
252
R_VDD15
1.5V
Z7RSTDDRV15
113
VSS12
GND
VSS12
253
R_VSS15
GND
Z7RSTDDRVGND
114
EX_DT[29]
I/O
BD4CIF
254
VSSAGND45C
GND
Z7RSTAGND45C
115
vext158
1.5V
SDRAMVDE1
255
VDDSAVCC5
3.3V
Z7RSTAVCC5
116
VDDS
3.3V
VDDS
256
VSSAGND45R
GND
Z7RSTAGND45R
117
VSS12
GND
VSS12
118
vgnd50
GND
SDRAMVSE
119
vext26
2.5V
SDRAMVDE2
120
vgnd84
GND
SDRAMVSE
121
EX_DT[30]
I/O
BD4CIF
122
EX_DIR
I/O
BD4CIF
123
TEST_C
IN
IBUFDIF
124
TEST_L[3]
IN
IBUFDIF
125
TEST_L[2]
IN
IBUFDIF
126
TEST_L[1]
IN
IBUFDIF
127
vgnd85
GND
SDRAMVSE
128
vext1102
1.5V
SDRAMVDE1
129
TEST_L[0]
IN
IBUFDIF
130
DAC_DATA
OUT
B4IF
131
DAC_CLK
OUT
B4IF
132
DAC_LATCH
OUT
B4IF
133
READY
OUT
B4IF
134
S_LBR
OUT
B4IF
135
G_LBR
OUT
B4IF
136
VDDS
3.3V
VDDS
137
VSS12
GND
VSS12
138
G_LBR_INV
OUT
B4IF
139
FS
OUT
B4IF
140
SREADY
I/O
BD4THVIC1
*Pin No.177, 178 is a power supply for SSCG, Pin No.180, 181 is GND for SSCG, and it is separated with another power supply GND.
Pin No.
Pin Name
I/O
Pin Function
1
LATCH
I
Series latch input.
2
SDIN
I
Series data input
3
CLK
I
Series clock input
4
SDOUT
O
Series data output
5
DVCC
---
Logic power supply
6
CT
---
Capacity connection terminal for power ON reset.
7
GND
---
Ground.
8
N.C
---
No Connect.
9
OSC
O
DAC tune clock I/O.
10
N.C
---
No Connect.
11
CTL
I
Amplifier input switch signal input.
12
N.C
---
No connection.
13
VCC
---
Buffer amplifier power supply.
14
OUT0
O
Gradation voltage output terminal 0.
15
OUT1
O
Gradation voltage output terminal 1.
Pin No.
Pin Name
I/O
Function Name
Pin No.
Pin Name
I/O
Function Name
LC-26D44E/S/RU-BK/GY
5 – 22
16. IC8202 (VHIBU55041+-1Y)
Nonvolatile VCOM calibrator
• 128-gradation current output possible
• I2C interface adopted
17. IC8402 (VHIBD8162EK-1Q)
Multi-channel system power supply IC
• 6-channel output system power supply with a built-in POWER FET
• 4ch gradation buffer amp + Built-in common amp
16
OUT2
O
Gradation voltage output terminal 2.
17
OUT3
O
Gradation voltage output terminal 3.
18
OUT4
O
Gradation voltage output terminal 4.
19
OUT5
O
Gradation voltage output terminal 5.
20
AGND
---
Buffer amplifier ground.
21
AGND
---
Buffer amplifier ground.
22
OUT6
O
Gradation voltage output terminal 6.
23
OUT7
O
Gradation voltage output terminal 7.
24
OUT8
O
Gradation voltage output terminal 8.
25
OUT9
O
Gradation voltage output terminal 9.
26
OUT10
O
Gradation voltage output terminal 10.
27
OUT11
O
Gradation voltage output terminal 11.
28
VCC
---
Buffer amplifier power supply.
29
REFIN
O
DAC reference input.
30
VDAC
O
DAC voltage output.
31
DACGND
---
Ground for DAC.
32
N.C
---
No Connect.
Pin No.
Pin Name
I/O
Pin Function
1
IOUT
O
128 Step current output terminal.
2
AVDD
---
Power supply terminal 2.
3
WPB
I
Rewriting protection terminal. Enable at WPB=L
Rewriting is "H" level (VDD).
Rewriting is "H" level (VDD).
4
VSS
---
Ground terminal.
5
VDD
---
Power supply terminal 1.
6
SDA
I/O
I2C data in-output terminal.
7
SCL
I
I2C clock terminal.
8
SET
---
Maximum current setting terminal.
Pin No.
Pin Name
I/O
Pin Function
1
PGND3
---
Ground terminal.
2
PG3
O
Power good output 3.
3
DTC3
I
Duty control terminal 3.
4
COMP3
O
Error margin amplifier output 3.
5
FB3
I
Feedback input 3.
6
PVCC3
---
Power supply terminal.
7
LDFB3
I
LDO feedback input 3.
8
LDCTL3
I
LDO control terminal 3.
9
LDO3
O
LDO output 3.
10
IN1
I
AMP input 1.
11
IN2
I
AMP input 2.
12
IN3
I
AMP input 3.
13
IN4
I
AMP input 4.
14
IN+
I
COM input -.
15
IN-
I
COM input +.
16
VCOM
O
COM output.
17
OUT4
O
AMP output 4.
18
OUT3
O
AMP output 3.
19
OUT2
O
AMP output 2.
20
OUT1
O
AMP output 1.
21
HGND
---
Ground terminal.
22
CPFB2
I
Charge pump feedback 2.
23
CPCTL
I
CP control input.
24
C2
O
Charge pump output 2.
Pin No.
Pin Name
I/O
Pin Function
LC-26D44E/S/RU-BK/GY
5 – 23
25
VCP2
O
Charge pump LOD output 2.
26
HVCC
---
Power supply terminal.
27
VCP1
O
Charge pump LOD output 1.
28
C1
O
Charge pump output 1.
29
CPPG
O
CP power good output.
30
CPFB1
I
Charge pump feedback 1.
31
PGND1
---
Ground terminal.
32
PG1
O
Power good output 1.
33
SW1
O
Switching output 1.
34
PGATE
O
P-channel gate drive output.
35
DTC1
I
Duty control terminal 1.
36
COMP1
O
Error margin amplifier output 1.
37
FB1
I
Feedback input 1.
38
CTL1
I
Control input 1.
39
FAULT
O
Protect detector output.
40
SCP
I
Short protection delay terminal
41
UVLO
I
Low voltage lockout setting terminal.
42
VCC
---
Power supply terminal.
43
VREF
O
Reference voltage output terminal.
44
FB2
I
Feedback input 2.
45
COMP2
O
Error margin amplifier output 2.
46
DTC2
I
Duty control terminal 2.
47
PVCC2
---
Power supply terminal.
48
BOOT2
I
Switch boot terminal 2.
49
SW2
O
Switching output 2.
50
CTL2
I
Control input 2.
51
PG2
O
Power good output 2.
52
REG
O
LDO output for BOOT.
53
LDFB1
I
LDO feedback 1.
54
LDCTL1
I
LDO control terminal 1.
55
LDPG1
O
LDO power good output 1.
56
LDO1
O
LDO output 1.
57
GND
---
Ground terminal.
58
RT
I
Frequency setting terminal.
59
LDFB2
I
LDO feedback 2.
60
LDO2
O
LDO output 2.
61
LDVCC2
---
Power supply terminal.
62
CTL3
I
Control input 3.
63
SW3
O
Switching output 3.
64
BOOT3
I
Switch boot terminal 3.
Pin No.
Pin Name
I/O
Pin Function
LC-26D44E/S/RU-BK/GY
5 – 24
— MEMO —
