DOWNLOAD Sharp 28HW-53 (serv.man25) Service Manual ↓ Size: 72.03 KB | Pages: 2 in PDF or view online for FREE

Model
28HW-53 (serv.man25)
Pages
2 Few pages! See other manuals at the bottom of the first or last page.
Size
72.03 KB
Type
PDF
Document
Service Manual / Technical Bulletin
Brand
Device
TV / CTR / Set fails to come on (HT present), Text position incorrect, AV audio levels low or other symptoms associated with software
File
28hw-53-sm25.pdf
Date
PREV: Sharp 28HW-53 (serv.man24) Service Manual / Technical Bulletin

Sharp 28HW-53 (serv.man25) Service Manual / Technical Bulletin ▷ View online

CTV2003 04 05
Month of Issue:  
April 2003
        
Classification: 
White
TELEVISION TECHNICAL BULLETIN
Page 1 of 2
Sharp Electronics (UK) Limited
Reference JR29042003-1
Revision 1
White – Carry out as required
Yellow – Carry out as required and whenever the unit comes in for service
 Red – Carry out on all units
The table below details what data should be entered into the NVM to reset the usage counters
and to ensure that the position of the half screen teletext picture is correct.  Note that the usage
counters appear whenever the test mode is first entered.
Page
Position
Data Function
00
68
36
Teletext, half screen mode position
02
FA
00
02
FB
00
Number of times that the television
has been switched on
02
FC
00
02
FD
00
Number of times that standby has
been selected
02
FE
00
02
FF
00
Total number of hours used (on time)
Adjust the picture geometry, AFT and AGC setting using the instructions given in the service
manual.
Adjust the grey scale using the instructions given in Technical Bulletin CTV2000 01 04.
For the 66GF63H, 66GF64H and 76GF64H models only, check that at the data values given
below are as shown.  This will ensure that the audio level from the SCART input is correct.
Page
Position
Data
08
70
46
08
71
08
08
72
46
08
73
00
08
79
49
08
7A
08
08
7B
32
08
7C
32
08
5D
5D
CTV2003 04 05
Month of Issue:  
April 2003
        
Classification: 
White
TELEVISION TECHNICAL BULLETIN
Page 1 of 2
Sharp Electronics (UK) Limited
Reference JR29042003-1
Revision 1
White – Carry out as required
Yellow – Carry out as required and whenever the unit comes in for service
 Red – Carry out on all units
The table below details what data should be entered into the NVM to reset the usage counters
and to ensure that the position of the half screen teletext picture is correct.  Note that the usage
counters appear whenever the test mode is first entered.
Page
Position
Data Function
00
68
36
Teletext, half screen mode position
02
FA
00
02
FB
00
Number of times that the television
has been switched on
02
FC
00
02
FD
00
Number of times that standby has
been selected
02
FE
00
02
FF
00
Total number of hours used (on time)
Adjust the picture geometry, AFT and AGC setting using the instructions given in the service
manual.
Adjust the grey scale using the instructions given in Technical Bulletin CTV2000 01 04.
For the 66GF63H, 66GF64H and 76GF64H models only, check that at the data values given
below are as shown.  This will ensure that the audio level from the SCART input is correct.
Page
Position
Data
08
70
46
08
71
08
08
72
46
08
73
00
08
79
49
08
7A
08
08
7B
32
08
7C
32
08
5D
5D
CTV2003 04 05
Month of Issue:  
April 2003
        
Classification: 
White
TELEVISION TECHNICAL BULLETIN
Page 1 of 2
Sharp Electronics (UK) Limited
Reference JR29042003-1
Revision 1
White – Carry out as required
Yellow – Carry out as required and whenever the unit comes in for service
 Red – Carry out on all units
The table below details what data should be entered into the NVM to reset the usage counters
and to ensure that the position of the half screen teletext picture is correct.  Note that the usage
counters appear whenever the test mode is first entered.
Page
Position
Data Function
00
68
36
Teletext, half screen mode position
02
FA
00
02
FB
00
Number of times that the television
has been switched on
02
FC
00
02
FD
00
Number of times that standby has
been selected
02
FE
00
02
FF
00
Total number of hours used (on time)
Adjust the picture geometry, AFT and AGC setting using the instructions given in the service
manual.
Adjust the grey scale using the instructions given in Technical Bulletin CTV2000 01 04.
For the 66GF63H, 66GF64H and 76GF64H models only, check that at the data values given
below are as shown.  This will ensure that the audio level from the SCART input is correct.
Page
Position
Data
08
70
46
08
71
08
08
72
46
08
73
00
08
79
49
08
7A
08
08
7B
32
08
7C
32
08
5D
5D
CTV2003 04 05
Month of Issue:  
April 2003
        
Classification: 
White
TELEVISION TECHNICAL BULLETIN
Page 1 of 2
Sharp Electronics (UK) Limited
Reference JR29042003-1
Revision 1
White – Carry out as required
Yellow – Carry out as required and whenever the unit comes in for service
 Red – Carry out on all units
The table below details what data should be entered into the NVM to reset the usage counters
and to ensure that the position of the half screen teletext picture is correct.  Note that the usage
counters appear whenever the test mode is first entered.
Page
Position
Data Function
00
68
36
Teletext, half screen mode position
02
FA
00
02
FB
00
Number of times that the television
has been switched on
02
FC
00
02
FD
00
Number of times that standby has
been selected
02
FE
00
02
FF
00
Total number of hours used (on time)
Adjust the picture geometry, AFT and AGC setting using the instructions given in the service
manual.
Adjust the grey scale using the instructions given in Technical Bulletin CTV2000 01 04.
For the 66GF63H, 66GF64H and 76GF64H models only, check that at the data values given
below are as shown.  This will ensure that the audio level from the SCART input is correct.
Page
Position
Data
08
70
46
08
71
08
08
72
46
08
73
00
08
79
49
08
7A
08
08
7B
32
08
7C
32
08
5D
5D
Display

Sharp 28HW-53 (serv.man25) Service Manual / Technical Bulletin ▷ Download

  • DOWNLOAD Sharp 28HW-53 (serv.man25) Service Manual ↓ Size: 72.03 KB | Pages: 2 in PDF or view online for FREE
  • Here you can View online or download the Service Manual / Technical Bulletin for the Sharp 28HW-53 (serv.man25) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp 28HW-53 (serv.man25) CTR. Information contained in Sharp 28HW-53 (serv.man25) Service Manual / Technical Bulletin (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.man2) IC voltage tables for the DA100 (50Hz) and DA50W chassis Service Manual 9 601.83 KB
28HW-53 (serv.man3) A2 Schematic diagrams Service Manual 1 851.57 KB
28HW-53 (serv.man4) Part 1 - Text (1-10) Service Manual 10 172.8 KB
28HW-53 (serv.man5) Part 2 - PWB assemblies (part1) (11-13) Service Manual 3 1.16 MB
28HW-53 (serv.man6) Part 3 - PWB assemblies (part2) (14-17) Service Manual 4 1.46 MB
28HW-53 (serv.man7) Part 4 - PWB location tables (18-23) Service Manual 6 76.13 KB
28HW-53 (serv.man8) Part 5 - Schematic diagrams (24-32) Service Manual 9 1.17 MB
28HW-53 (serv.man9) Service Manual 44 4.65 MB
28HW-53 (serv.man11) User Manual / Operation Manual 42 954.21 KB
28HW-53 (serv.man35) NVM default data for double and single copper versions Thompson CRT Firmware 1.2 KB
28HW-53 (serv.man10) Service Manual / Parts Guide 12 728.27 KB
28HW-53 Service Manual / Specification 1 8.48 KB
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.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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