Read Sharp 66ES-D7H (serv.man2) Service Manual online
DA100 (50Hz) Chassis – Article for Television Magazine
Page 78 of 80
Sharp Electronics (UK) Limited - March 2003
Revision 2
IC501 - Vertical Output
Type:
Thomson
TDA7480
Sharp
Part
Number:
VHITDA7480/-1
Package: DIL
Price
Code:
AK
This IC is the same type for all FW models. To date, it has no alternative.
Pin
Name I/O
Comment DC
Voltage
1 -Ve
I Negative
supply -13.1V
2 -Ve
I Negative
supply -13.1V
3 -Ve
I Negative
supply -13.1V
4 Output
O PWM
output
0V
5
Boot Diode
I
Boost diode
-2.1V
6 Boot
I Boost
9.9V
7 NC
X Not
connected 0V
8 Feedback
C I Feedback
0V
9 Frequency
C I Freq
control
-11.8V
10 Ground
X Signal
ground
0V
11 Input
I Signal
input
0V
12 Mute
I <2.7V
mute
5.0V
13 NC
X Not
connected 0V
14 +Ve
I Positive
supply 14.1V
15 V
reg
I Reference
-2.1V
16 +Ve
I Positive
supply 14.1V
17 -Ve
I Negative
supply -13.1V
18 -Ve
I Negative
supply -13.1V
19 -Ve
I Negative
supply -13.1V
20 -Ve
I Negative
supply -13.1V
IC1003 - NVM
Type:
Xicor
X25645S8
Sharp
Part
Number:
RH-IX1603BMZZ
Package: SMD
Price
Code:
AV
In the Dolby Pro Logic version of this chassis (models ending in 4) and the76GF63H, there is another NVM
fitted. This is IC1004 and it is used as a teletext page store. It is not necessary to change this IC if you
suspect a data corruption causing an operational problem on the set.
Pin Name I/O
Comment DC
Voltage
1 NC
X Earth
0V
2 S1
X Earth
0V
3 S2
X Earth
0V
4 VSS
X Earth
0V
5 SDA
I/O
Date
4.2V
6 SCL
I Clock
4.2V
7 WP
I Write
protect 5.0V
8 VCC
I Supply
5.0V
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