Read Sharp LC-32D44E (serv.man6) Service Manual online
LC-32D44E/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
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