Product specifications

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