Sharp 66GF-63 (serv.man3) Service Manual ▷ View online
DA100 (50Hz) Chassis – Article for Television Magazine
Page 77 of 80
Sharp Electronics (UK) Limited - March 2003
Revision 2
IC301 / IC302 - Audio Amplifiers
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 -18.0V
2 -Ve
I Negative
supply -18.0V
3 -Ve
I Negative
supply -18.0V
4 Output
O PWM
output
0V
5
Boot Diode
I
Boost diode
-7.0V
6 Boot
I Boost
10.0V
7 NC
X Not
connected 0V
8 Feedback
C I Feedback
0V
9 Frequency
C I Freq
control
-15.0V
10 Ground
X Signal
ground
0V
11 Input
I Signal
input
0V
12 Mute
I <2.7V
mute
5.1V
13 NC
X Not
connected 0.5V
14 +Ve
I Positive
supply 17.2V
15 V
reg
I Reference
-7.0V
16 +Ve
I Positive
supply 17.2V
17 -Ve
I Negative
supply -18.0V
18 -Ve
I Negative
supply -18.0V
19 -Ve
I Negative
supply -18.0V
20 -Ve
I Negative
supply -18.0V
IC702 - Primary Control
Type:
Thomson/SGS ST6203B
Sharp Part Number: RH-IX1646BMZZ
Package:
SMD gull wing
Price Code:
AL
This IC is the same type for all FW models. To date, it has no alternative.
Note that the earth connection of the meter has to be taken at the negative end of the main smoothing
block. A more convenient connection is the chopper transistor heatsink.
Note that the earth connection of the meter has to be taken at the negative end of the main smoothing
block. A more convenient connection is the chopper transistor heatsink.
Pin Name I/O Comment DC
Voltage
1 VDD
I Supply
5.2V
2 OSCIN
I Oscillator
2.5V
3 OSCOUT
O Oscillator
2.5V
4 NMI
I Remote
input
5.0V
5 TEST
X Grounded
0V
6 RESET
I From
reset
5.2V
7 PB7
I From
processor 5.2V
8 PB6
I 100Hz
reference 0.48V
9 PB5
I/O
Key
scan
5.2V
10 PB3
I/O
Key
scan
0V
11 PB1
I/O
Key
scan
0V
12 PB0
I/O
Key
scan
0V
13 PA3
O To
processor
5.2V
14 PA2
O Degauss
0V
15 PA1
O Power
control
0V
16 VSS
X Ground
0V
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
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
DA100 (50Hz) Chassis – Article for Television Magazine
Page 80 of 80
Sharp Electronics (UK) Limited - March 2003
Revision 2
IC201 - IF
Type:
Temic TDA4472 MFL
Sharp Part Number: RH-IX1672BMZZ
Package: DIL
Price
Code:
AP
This IC is the same type for all models. To date, it has no alternative.
Pin Name I/O Comment DC
Voltage
1 SIF
I Sound
IF
3.2V
2 SIF
I Sound
IF
3.14V
3 IS
X Not
connected 3.4V
4 GND
X Earth
0V
5 SAGC
I Sound
AGC
1.8V
6 VIF
I Video
IF
2.24V
7 VIF
I Video
IF
2.2V
8 VAGC
I Video
AGC
2.4V
9 GND
X Earth
0V
10 AGC
I Overall
AGC
0.8V
11
RF AGC
I
RF AGC
3.4V
12 VOUT
O Video
output 2.1V
13 ST
X Not
connected 0V
14 L/L
X Not
connected 0V
15 BL
X Not
connected 0V
16 GND
X Earth
0V
17 C
I PLL
control
4.25V
18 PLL
I PLL
control
2.2V
19 AFC
X Not
connected 3.47V
20 VCO
I VCO
control
3.1V
21 VCO
I VCO
control
3.3V
22 AFC
I AFT
conrol
2.1V
23 +V
I Supply
5.1V
24
FM
O
To AFT control
2.1V
25 AM
X Not
connected 0V
26 OFS
X Not
connected 3.5V
27 SOF2
X Not
connected 0V
28 SIF2
X Not
connected 0V