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DV-5131H (serv.man14). Counter measure for loss of NVM data - no teletext - Sharp TV Technical Bulletin (repair manual)

dv-5131h (serv.man14) technical bulletin
Model
DV-5131H (serv.man14)
Pages
1 Few pages! See other manuals at the bottom of the first or last page.
Size
6.83 KB
Type
PDF
Document
Technical Bulletin
Brand
Device
TV / CTR / Counter measure for loss of NVM data - no teletext
File
dv-5131h-sm14.pdf
Date
Next: Sharp DV-5131H (serv.man15) Technical Bulletin

Read Sharp DV-5131H (serv.man14) Technical Bulletin online

Sharp Electronics (UK) Limited
Originator AMu   Supervisor                        Approval Date    /   /     Reference UK44800X
Revision   
White – Carry out as required, Yellow – Carry out as required and whenever the unit comes in for service, Red – Carry out on all units
DV5131-007
Month of Issue:
        Classification: Immediate
TELEVISION TECHNICAL BULLETIN
Page 1 of 1
MODELS
DV5131H
DV3751H
SYMPTOM No access to teletext function.
CAUSE
Corruption of NVM data.
ACTION
Carry out the following circuit improvement
1.  Replace C714 with a 2,200uF electrolytic capacitor.
2.  Add a zener diode between pins 5 and 4 of IC1002, anode to ground.
3.  Add a zener diode between pins 6 and 7 of IC1002, anode to ground.
Use the part numbers given below.
REF NO
DESCRIPTION
PART NUMBER
PRICE CODE
C714
2,200uF Capacitor
VCEAGA1CW228M
AG
-
8.2V Zener Diode
RH-EX0413BMZZ
AB
Display

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Here you can read online and download Sharp DV-5131H (serv.man14) Technical Bulletin in PDF. DV-5131H (serv.man14) technical bulletin will guide through the process and help you recover, restore, fix, disassemble and repair Sharp DV-5131H (serv.man14) CTR. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.

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DV-5131H (serv.man14) Service Manuals

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DV-5131H (serv.man2) NVM Map Service Manual 1 99.25 KB
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DV-5131H from the Specification 1 13.56 KB
DV-5131H (serv.man22) Change of the chopper transformer - fitting instructions Technical Bulletin 1 15.61 KB
DV-5131H (serv.man21) Replacement of IC1001 Technical Bulletin 1 7.92 KB
DV-5131H (serv.man20) Counter measure for poor teletext reception Technical Bulletin 1 9.48 KB
DV-5131H (serv.man19) Fitting instructions for alternative chopper and line output transformers Technical Bulletin 1 9.5 KB
DV-5131H (serv.man18) Counter measure for flickering picture at low mains input voltages Technical Bulletin 1 37.79 KB
DV-5131H (serv.man17) Counter measure for the protection of the frame output IC Technical Bulletin 1 8.24 KB
DV-5131H (serv.man16) Counter measure for no teletext Technical Bulletin 1 7.17 KB
DV-5131H (serv.man15) Counter measure for protection of NVM data loss by static discharge Technical Bulletin 1 6.86 KB
DV-5131H (serv.man13) Counter measure for slow chroma lock, especially on channel change Technical Bulletin 1 6.44 KB
DV-5131H (serv.man12) Counter measure for erratic functions and or no teletext Technical Bulletin 1 61.87 KB
DV-5131H (serv.man11) Common faults on the S3B Chassis Technical Bulletin 1 7.67 KB
DV-5131H (serv.man10) No AFC, poor tuning function. Technical Bulletin 1 32.54 KB
DV-5131H (serv.man9) No operation with the power supply tripping. Technical Bulletin 1 39.05 KB

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