Read Sharp HT-CN410DVH (serv.man2) Service Manual online
HT-CN410DVH
63
IC251, VFD Driver (TP6311)
Pin Configuration:
Block Diagram:
SW1
OSC
GND
LED1
LED2
LED3
LED4
LED5
VDD
GR1
GR2
GR3
GR4
GR5
GR6
GR7
GR8
SG20/GR9
SG19/GR10
VEE
VDD
SG18/GR11
SG17/GR12
SG16/GR13
SG15/GR14
SG14/GR15
SG13/GR16
VDD
SG1/KS1
SG2/KS2
SG3/KS3
SG4/KS4
SG5/KS5
SG6/KS6
SG7/KS7
SG8/KS8
SG9/KS9
SG10/KS10
SG1
1/KS1
1
SG12/KS12
SW2
SW3
SW4
DOUT
DIN
NC
CLK
K1
STB
K2
K3
K4
1
2
3
4
5
6
7
8
9
10
11
12
13
39
38
37
36
35
34
33
32
31
30
29
28
27
41 40
42
43
44
45
46
47
48
49
50
51
52
25
26
24
23
22
21
20
19
18
17
16
15
14
LED
DRIVER
OSC
Serial
Data
Interface
Control
Segment
Driver/
Grid
Driver/
Key Scan/
Output
Timing Generator
Display Memory
(20 bits X 16 words)
Key Matrix Memory
Dimming Circuit
Grid
Driver
General
Input
Register
K1 K2 K3 K4
VDD
GND
VEE
VDD
OSC
SW1
SW2
SW3
SW3
SW4
LED1
LED2
LED3
LED4
LED5
LED3
LED4
LED5
DIN
DOUT
CLK
STB
R
SG1/KS1
SG2/KS2
SG3/KS3
SG4/KS4
SG5/KS5
SG6/KS6
SG7/KS7
SG8/KS8
SG9/KS9
SG10/KS10
SG11/KS11
SG12/KS12
SG13/GR16
SG14/GR15
SG15/GR14
SG16/GR13
SG17/GR12
SG18/GR11
SG19/GR10
SG20/GR9
SG2/KS2
SG3/KS3
SG4/KS4
SG5/KS5
SG6/KS6
SG7/KS7
SG8/KS8
SG9/KS9
SG10/KS10
SG11/KS11
SG12/KS12
SG13/GR16
SG14/GR15
SG15/GR14
SG16/GR13
SG17/GR12
SG18/GR11
SG19/GR10
SG20/GR9
GR1
GR2
GR3
GR4
GR5
GR6
GR7
GR8
GR2
GR3
GR4
GR5
GR6
GR7
GR8
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