Read Sharp 56FW-53H Service Manual online
DA100 (50Hz) Chassis – Article for Television Magazine
Page 79 of 80
Sharp Electronics (UK) Limited - March 2003
Revision 2
IC2401 - Megatext
**FW53H
Type:
Type:
Siemens
SDA5273-2
Sharp
Part
Number:
RH-IX1673BMZZ
Package: DIL
Price
Code:
BE
**FW54H (Pro-Logic Models)
Type:
Siemens
SDA5275-3
Sharp
Part
Number:
RH-IX1709BMZZ
Package: DIL
Price
Code:
BG
Note that a different type of IC is used for the Dolby Pro-Logic version of this chassis. It also has a page
store (IC2402) associated with the Mega Text IC when used in the Pro-Logic set.
store (IC2402) associated with the Mega Text IC when used in the Pro-Logic set.
Pin Name I/O Comment DC
Voltage
1 CLK
X Not
connected 1.1V
2
TSCQ
X
Not connected
2.0 to 2.3V
3 VS
I Vertical
pulse
0.V
4 HS
I Horizontal
pulse 0.1V
5 XOUT
O Crystal
1.5V
6 XIN
I Crystal
2.0V
7 GPO
X Not
connected 0V
8 TM
X Grounded
0V
9 CVBS
I Composite
video 5.0V
10 VDD
1
I Supply
5.0V
11 VDDA
I Supply
5.0V
12 VSSA
1
X Ground
0V
13 VDD
2
I Supply
5.0V
14 RES
I Reset
In
2.9V
15 VDD
3
I Supply
5.0V
16 AVREF
I Reference
voltage 2.9V
17 VDD
4
I Supply
5.0V
18
A8
O
Used with IC2402 0.1V
19
A7
O
Used with IC2402 0.1V
20
A6
O
Used with IC2402 0.1V
21
A5
O
Used with IC2402 0.2V
22
A4
O
Used with IC2402 0.2V
23
A3
O
Used with IC2402 0.2V
24
A2
O
Used with IC2402 0.1V
25
A1
O
Used with IC2402 0V
26
A0
O
Used with IC2402 1.5V
27
A9
O
Used with IC2402 0V
28 A10
X Not
connected 3.5V
29 A11
X Not
connected 3.9V
30
RASQ
O
Used with IC2402 1.2V
31
WEQ
O
Used with IC2402 0V
32
D1
I/O Used with IC2402 4.6V
33
D2
I/O Used with IC2402 4.2V
34
D3
I/O Used with IC2402 4.6V
35
D4
I/O Used with IC2402 4.2V
36 VSS
4
X Grounded
0V
37 CASQ
X Not
connected 4.6V
38 VSS
3
X Grounded
0V
39 VBB
I Reference
-1.9V
40 VSS
2
X Grounded
0V
41 VSSA
2
X Grounded
0V
42 RGB
GND
X Grounded
0V
43 VSS
1
X Grounded
0V
44 R
O Red
output
0V
45 G
O Green
output
0V
46 B
O Blue
output
0V
47 BLAN
O Blanking
output 0.5V
48 CORQ
X Not
used
4.98V
49 M3CLK
I Clock
4.98V
50 M3LDA
I/O Data
0V
51 I2CEN
I Data
enable
0V
52 INTQ
X Not
connected 0V
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