LC-M3700 (serv.man33). Dark shadows on picture — Sharp TV Technical Bulletin (repair manual)

Model
LC-M3700 (serv.man33)
Pages
5 Few pages! See other manuals at the bottom of the first or last page.
Size
310.06 KB
Type
PDF
Document
Technical Bulletin
Brand
Device
TV / LCD / Dark shadows on picture
File
lc-m3700-sm33.pdf
Date

View Sharp LC-M3700 (serv.man33) Technical Bulletin online

LCD 2005 03 02
Date of Issue:         11th March 2005
        
Classification:
White
LCD TELEVISION TECHNICAL BULLETIN
Page 1 of 5
Sharp Electronics (UK) Limited
Reference - LV-092
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
LC37AD1E
LC37HV4E
LCM3700
LCM3710
SYMPTOM Dark  shadows  appear  on  screen.    This  is  normally  associated  in  an  environment  in
which a supersonic humidifier is used.
CAUSE
Sealing  of  the  LCD  panel  allowing  chlorine  to  build  up  on  the  surface  of  the  LCD
panel.
ACTION
Carry out the following improvement:
1.  Referring to pages 12 to 15 of the service manual, remove the major parts.
2.  Remove the Reflection Panel.
3.  Wipe  off  the  contamination  from  the  LCD  panel  and  optical  sheets.    Use  a  tightly
rung cloth damped with purified water.
4.  Stick  the  four  spacers  (PSPAZA526WJZZ  and  PSPAZA527WJZZ  -  two  of  each
type) to the die-cast chassis frame as shown on page two.
5.  Stick commercially available electrical insulation tape on the inside of the bezel at
the 27 positions as shown on page 3.
6.  Re-assemble the major parts in reverse order.
7.  Before  installing  the  LCD  panel,  stick  the  four  spacers  (PSPAZA528WJZZ  and
PSPAZA529WJZZ - two of each type) to the die-cast frame as shown on page 4.
8.  Complete the re-assembly and test.
Note
This  improvement  has  been  carried  out  during  production  from  the  serial  numbers
given below:
LC37AD1E
404313280
LC37HV4E 
***813138
LCM3700(E)
402311959
LCM3710(E)
404311112
REF NO
DESCRIPTION
PART NUMBER
PRICE CODE
-
Spacer - Length 850mm, Thickness 2mm
PSPAZA526WJZZ
AE
-
Spacer - Length 460mm, Thickness 2mm
PSPAZA527WJZZ
AC
-
Spacer - Length 510mm, Thickness 6mm
PSPAZA528WJZZ
AD
-
Spacer - Length 880mm, Thickness 6mm
PSPAZA529WJZZ
AE

Download Sharp LC-M3700 (serv.man33) Technical Bulletin

Here you can view online or download Sharp LC-M3700 (serv.man33) Technical Bulletin in pdf. This Technical Bulletin can help you recover, restore, fix, disassemble and repair Sharp LC-M3700 (serv.man33) LCD. Information contained in Sharp LC-M3700 (serv.man33) service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).