66DW-18H (serv.man26). Failure of Q509. — Sharp TV Technical Bulletin (repair manual)

Model
66DW-18H (serv.man26)
Pages
1 Few pages! See other manuals at the bottom of the first or last page.
Size
60.04 KB
Type
PDF
Document
Technical Bulletin
Brand
Device
TV / CTR / Failure of Q509.
File
66dw-18h-sm26.pdf
Date

View Sharp 66DW-18H (serv.man26) Technical Bulletin online

Sharp Electronics (UK) Limited
Reference UK84602X
Revision  2
White – Carry out as required, Yellow – Carry out as required and whenever the unit comes in for service, Red – Carry out on all units
CTV991003
Month of Issue: October 1999
        Classification:                Yellow
TELEVISION TECHNICAL BULLETIN
Page 1 of 1
MODELS
66DW18H
76DW18H
SYMPTOM
Failure of Q509.
CAUSE
Excessive excursions of the positive forty volt supply from the line stage.
ACTION
Fit an extra zener diode, D632, in the position of R626 as shown in the diagram below.
Note that this diode has been fitted during production as of the following serial
numbers.
 66DW18H 
712620
76DW18H 
714463
REF NO
DESCRIPTION
PART NUMBER
PRICE CODE
D632
Zener diode, 47V
RH-EX0431BMZZ
AA
40V
R611
D608
D632
C621
R626
Display

Download Sharp 66DW-18H (serv.man26) Technical Bulletin

Here you can view online or download Sharp 66DW-18H (serv.man26) Technical Bulletin in pdf. This Technical Bulletin can help you recover, restore, fix, disassemble and repair Sharp 66DW-18H (serv.man26) CTR. Information contained in Sharp 66DW-18H (serv.man26) 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).