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56FW-53H (serv.man48). Geometry and picture stability problems - Sharp TV Technical Bulletin (repair manual)

56fw-53h (serv.man48) technical bulletin
Model
56FW-53H (serv.man48)
Pages
2 Few pages! See other manuals at the bottom of the first or last page.
Size
44.39 KB
Type
PDF
Document
Technical Bulletin
Brand
Device
TV / CTR / Geometry and picture stability problems
File
56fw-53h-sm48.pdf
Date
Next: Sharp 56FW-53H (serv.man49) Technical Bulletin

Read Sharp 56FW-53H (serv.man48) Technical Bulletin online

CTV2002 03 12
Month of Issue:  
March 2002
        
Classification: 
White
TELEVISION TECHNICAL BULLETIN
Page 1 of 2
Sharp Electronics (UK) Limited
Reference SP020700X SP020701X
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
MODELS
56FW53H
(S/N 502070~)
SYMPTOM  Geometry and picture stability problems on Philips CRT
CAUSE
1.  Failure of SMD components.
2.  incorrect NVM data.
ACTION
1.
Change the SMDs (C525 and R521) on the main PWB.
Please see the diagram on the following page for component locations.
Please Note :
This change has already been carried out on sets with serial numbers later than
that shown above.
REF NO
DESCRIPTION
PART NUMBER
PRICE CODE
C525
Resistor 2,7kOhm 5% 1/10W 2125 SMD
VRS-TV1JD272J
AA
R521
Resistor 18kOhm 5% 1/10W 2125 SMD
VRS-TV1JD183J
AA
2.  Change the NVM data as shown below.
OLD NVM: 56FW53HI.IIC
NEW NVM: 56FW53HJ.IIC
PAG.
POS.
VALUE
PAG.
POS.
VALUE
00
35
06
00
35
08
00
74
02
00
74
05
00
36
0A
00
36
FF
Month of Issue:
        
Classification: 
TECHNICAL BULLETIN
Page 2 of 2
Sharp Electronics (UK) Limited
Reference SP020700X SP020701X
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
Page of 2
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56FW-53H (serv.man48) Service Manuals

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