DOWNLOAD Sharp 28HW-53 (serv.man2) Service Manual ↓ Size: 601.83 KB | Pages: 9 in PDF or view online for FREE

Model
28HW-53 (serv.man2)
Pages
9
Size
601.83 KB
Type
PDF
Document
Service Manual
Brand
Device
TV / CTR / IC voltage tables for the DA100 (50Hz) and DA50W chassis
File
28hw-53-sm2.pdf
Date
PREV: Sharp 28HW-53 Service Manual / Specification

Sharp 28HW-53 (serv.man2) Service Manual ▷ View online

DA100 (50Hz) and DA50W Chassis – Voltage Tables
Page 3 of 9
Sharp Electronics (UK) Limited - March 2003
Revision 1
IC801 – Video Sync Processor (VDP)
Type:
Micronas VDP 3120C2
Sharp Part Number: RH-IX1688BMN2
Package:
DIL
Price Code:
BH
This IC is the same type for all FW models.  GF and HW models can be fitted with the VDP 3130 (part
number RH-IX1858BMZZ).  The voltage for this IC are similar.
Pin
Name
I/O
Comment
DC
Voltage
1
TEST
X
Earth
0V
2
RESQ
I
Reset (RES1)
5.0V
3
SCL
I
Clock
4.6V
4
SDA
I/O
Data
3.9V
5
DSGND
X
Ground
0V
6
HCS
X
Not  connected
1.4V
7
FSY
X
Not  connected
1.3V
8
CSY
O
Composite sync
4.7V
9
MSY
X
Not  connected
5.08V
10
INTLC
X
Not connected
2.5V
11
VPROT
I
Vertical protection
0.3V
12
SAFTEY
I
EHT safety
0.77V
13
HFLB
I
Horizontal fly back
0V
14
GND
X
Ground
0V
15
VSUPD
I
Supply
5.0V
16
GND0
X
Earth
0V
17
PR0
I
Not used
3.3V
18
PR1
X
Not connected
0V
19
PR2
X
Not connected
0V
20
PORT2
X
Earth
0V
21
PORT3
X
Earth
0V
22
PORT4
X
Earth
0V
23
PORT5
X
Earth
0V
24
PROT6
X
Earth
0V
25
DSGND
X
Earth
0V
26
RSW2
I
Not used
0V
27
RSW1
I
Not used
0V
28
SENSE
I
Not used
0V
29
GNDM
X
Earth
0V
30
VERTQ
X
Earth
0V
31
VERT
O
Vertical drive
1.7V
32
EW
O
East/west control
1.0V
33
XREF
I
Reference
2.3V
34
SVM
O
SVM output
4.5V
35
GND
X
Earth
0V
36
VSUP
I
Supply
5.14V
37
ROUT
O
Red output
4.6V
38
GOUT
O
Green output
4.6V
39
BOUT
O
Blue output
4.6V
40
VRD
I
Control
2.5V
41
RIN
I
Red input
0V
42
GIN
I
Green input
0V
43
BIN
I
Blue input
0V
44
FBLIN
I
0V
45
RIN2
I
From RGB SCART
0V
46
GIN2
I
From RGB SCART
0V
47
BIN2
I
From RGB SCART
0V
48
FBLIN2
I
From RGB SCART
0.47V
49
CLK20
X
Not connected
2.6V
50
HOUT
O
Horizontal drive
2.8V
51
XTAL1
I
Crystal
-
52
XTAL2
O
Crystal
2.4V
53
VSTBY
I
Supply
5.13V
54
CLK5
X
Not connected
3.6V
55
GNDF
X
Earth
0V
56
ISGND
X
Earth
0V
57
VRT
I
Control
2.6V
58
VSUPF
I
Supply
5.1V
59
VOUT
O
Video output
1.4V
60
CIN
I
Chrominance input
1.5V
61
VIN1
I
Front AV and front S-Video
or composite
1.4V
62
VIN2
I
AV2 composite video
1.4V
63
VIN3
I
RGB SCART composite video
1.4V
64
VIN4
I
Tuner composite video
0V
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.
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.
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
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  • Here you can View online or download the Service Manual for the Sharp 28HW-53 (serv.man2) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp 28HW-53 (serv.man2) CTR. Information contained in Sharp 28HW-53 (serv.man2) Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.

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28HW-53 (serv.man23) Picture ramps to white or black grey scale variations Service Manual / Technical Bulletin 1 11.42 KB
28HW-53 (serv.man34) Set resets whilst being watched or switches on from stand-by on its own Service Manual / Technical Bulletin 2 123.72 KB
28HW-53 (serv.man33) A service jig has been made available to blank the data in the NVM Service Manual / Technical Bulletin 1 11.13 KB
28HW-53 (serv.man32) Low scart input levels after replacing the NVM Service Manual / Technical Bulletin 1 10.17 KB
28HW-53 (serv.man31) Remote control battery cover has part number Service Manual / Technical Bulletin 1 39.79 KB
28HW-53 (serv.man30) Ragged verticals at the top and bottom of the screen Service Manual / Technical Bulletin 1 8.99 KB
28HW-53 (serv.man29) Part number for Mains Lead Cord Grip Service Manual / Technical Bulletin 1 9.05 KB
28HW-53 (serv.man28) Part number for T702 (Triac) Service Manual / Technical Bulletin 1 8.83 KB
28HW-53 (serv.man27) Countermeasure to set reverting to page 100 in sub-title mode Service Manual / Technical Bulletin 1 10.57 KB
28HW-53 (serv.man26) Fitting instructions for alternative four-pin opto coupler (Revision 3) Service Manual / Technical Bulletin 3 597.54 KB
28HW-53 (serv.man25) Set fails to come on (HT present), Text position incorrect, AV audio levels low or other symptoms associated with software Service Manual / Technical Bulletin 2 72.03 KB
28HW-53 (serv.man24) Simplified procedure for the G2 and Grey Scale adjustments Service Manual / Technical Bulletin 1 11.72 KB
28HW-53 (serv.man22) Vertical stage faults Service Manual / Technical Bulletin 2 18.85 KB
28HW-53 (serv.man21) High HT Service Manual / Technical Bulletin 3 778.28 KB
28HW-53 (serv.man20) Other power supply related faults Service Manual / Technical Bulletin 3 412.42 KB
28HW-53 (serv.man19) Horizontal stage faults Service Manual / Technical Bulletin 2 340.61 KB
28HW-53 (serv.man18) Selection of NVM blanking jig Service Manual / Technical Bulletin 1 10.39 KB
28HW-53 (serv.man17) East west and geometry problems Service Manual / Technical Bulletin 2 1.18 MB
28HW-53 (serv.man16) NVM programming Jig (revision-9) Service Manual / Technical Bulletin 3 98.4 KB
28HW-53 (serv.man15) IC1300 on the centre speaker PWB runs hot or the set is dead. (revision 4) Service Manual / Technical Bulletin 2 115.54 KB
28HW-53 (serv.man14) Set shuts down at start-up Service Manual / Technical Bulletin 1 6.05 KB
28HW-53 (serv.man13) Faults in the East West Circuit Service Manual / Technical Bulletin 2 149.53 KB
28HW-53 (serv.man12) Sound goes up when using non-Sharp remote control Service Manual / Technical Bulletin 1 16.95 KB

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