Sharp 28HW-53 (serv.man2) Service Manual ▷ View online
DA100 (50Hz) and DA50W Chassis – Voltage Tables
Page 4 of 9
Sharp Electronics (UK) Limited - March 2003
Revision 1
IC305 – Multiple Sound Processor (MSP)
Type:
ITT MSP3410D PSD1P64
Sharp Part Number: RH-IX1636BMZZ
Package:
DIL
Price Code:
BD
This IC is the same type for all FW models. To date, it has no alternative.
Pin
Name
I/O
Comment
DC Voltage
1
AUD CL OUT
X
Not connected
2.4V
2
NC
X
Not connected
0.5V
3
NC
X
Not connected
0.5V
4
D CTR OUT1
X
Not connected
1.4V
5
D CTR OUT0
X
Not connected
1.4V
6
ADR SEL
X
Earth
0V
7
STBY
I
Supply
5.0V
8
NC
X
Not connected
0.6V
9
SCL
I
Clock
4.5 to 4.9V
10
SDA
I/O
Data
3.7 to 3.9V
11
I2SCL
I/O
Pro Logic control
1.2V
12
I2SWS
I/O
Pro Logic control
1.3V
13
I2SDAOUT
I/O
Pro Logic control
1.4V
14
I2SDAIN
I/O
Pro Logic control
1.4V
15
ADR DA
X
Not connected
1.2V
16
ADR WS
X
Not connected
1.2V
17
ADR CL
X
Not connected
1.2V
18
DVSUP
I
Digital supply
5.0V
19
DVSS
X
Digital earth
0V
20
I2S DA IN2
X
Not connected
1.2V
21
NC
X
Not connected
0V
22
NC
X
Not connected
0V
23
NC
X
Not connected
0V
24
RESET
I
Reset in (RES2)
5.1V
25
DAC R
O
Headphone right
1.2V
26
DAC L
O
Headphone left
1.2V
27
VREF2
X
Earth
0V
28
DACM R
O
Main right
0V
29
DACM L
O
Main left
0V
30
NC
X
Not connected
0V
31
NC
X
Not connected
0.3V
32
NC
X
Earth
0V
33
SC2 OUT R
O
SCART 2 right
3.76V
34
SC2 OUT L
O
SCART 2 left
3.76V
35
VREF1
X
Earth
0V
36
SC1 OUT R
O
SCART 1 right
3.76V
37
SC1 OUT L
O
SCART 1 left
3.78V
38
CAPL A
I
6.85V
39
AHVSUP
I
Supply
8.0V
40
CAPL M
I
7.95V
41
AHVSS
X
Ground
0V
42
AGNDC
I
3.72V
43
SC4 IN L
I
Front left
3.15V
44
SC4 IN R
I
Front right
3.75V
45
ASG4
X
Earth
0V
46
SC3 IN L
I
RGB left
3.75V
47
SC3 IN R
I
RGB right
3.75V
48
ASG2
X
Earth
0V
49
SC2 IN L
I
SCART 2 left
3.75V
50
SC2 IN R
I
SCART 2 right
3.75V
51
ASG1
X
Earth
0V
52
SC1 IN L
I
SCART 1 left
3.55V
53
SC1 IN R
I
SCART1 right
3.55V
54
VREFTOP
I
Reference voltage
2.54V
55
MONO IN
X
Not used
0V
56
AVSS
X
Analogue earth
0V
57
AVSUP
I
Analogue supply
5.0V
58
ANA IN1+
I
FM input
1.49V
59
ANA IN-
X
Not used
1.47V
60
ANA IN2+
X
Not used
0V
61
TESTI01
X
Earth
0V
62
XTAL IN
I
Crystal
2.25V
63
XTAL OUT
O
Crystal
2.2V
64
NC
X
Not connected
0V
Note that on the GF Pro Logic models pin 31 is used for the
sub-woofer output.
sub-woofer output.
DA100 (50Hz) and DA50W Chassis – Voltage Tables
Page 5 of 9
Sharp Electronics (UK) Limited - March 2003
Revision 1
IC1801 – Cathode Drive Amplifier (CDA)
Type:
TEA5101A
Sharp Part Number: RH-IX1416BMZZ
Package:
QIL
Price Code:
AN
Type:
STV5109
Sharp Part Number: RH-IX1803BMZZ
Package:
QIL
Price Code:
AS
Type:
TDA6019JF
Sharp Part Number: RH-IX1833BMZZ
Package:
QIL
Price Code:
AR
STV5109
Pin
Name
I/O
DC Voltage
1
R sense
I
2.6V
2
G sense
I
2.6V
3
B sense
I
2.6V
4
Ground
X
0V
5
I sense
O
5.6V
6
Supply
I
170V
7
B out
O
85V
8
G out
O
85V
9
R out
O
85V
TEA5101
Pin
Name
I/O
DC Voltage
1
B input
I
3.18V
2
Reference
I
11.4V
3
G input
I
0V
4
R input
I
3.18V
5
Supply
I
168V
6
R sense
O
0.1V
7
R output
I
140V
8
Ground
X
0V
9
R feedback
I
131V
10
G output
I
133V
11
G sense
O
0V
12
G feedback
I
135V
13
B output
O
130V
14
B sense
O
0.1V
15
B feedback
O
134V
TDA6109
Pin
Name
I/O
DC Voltage
1
B input
I
3.18V
2
Reference
I
11.4V
3
G input
I
0V
4
R input
I
3.18V
5
Supply
I
168V
6
R sense
O
0.1V
7
R output
I
140V
8
Ground
X
0V
9
R feedback
I
131V
10
G output
I
133V
11
G sense
O
0V
12
G feedback
I
135V
13
B output
O
130V
14
B sense
O
0.1V
15
B feedback
O
134V
DA100 (50Hz) and DA50W Chassis – Voltage Tables
Page 6 of 9
Sharp Electronics (UK) Limited - March 2003
Revision 1
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) and DA50W Chassis – Voltage Tables
Page 7 of 9
Sharp Electronics (UK) Limited - March 2003
Revision 1
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
0V
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.
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
