66CS-D8H (serv.man16). Various faults due to breakdown of Q707. - Sharp TV Technical Bulletin (repair manual)

66cs-d8h (serv.man16) technical bulletin
Model
66CS-D8H (serv.man16)
Pages
1 Few pages! See other manuals at the bottom of the first or last page.
Size
36.98 KB
Type
PDF
Document
Technical Bulletin
Brand
Device
TV / CTR / Various faults due to breakdown of Q707.
File
66cs-d8h-sm16.pdf
Date

Read Sharp 66CS-D8H (serv.man16) Technical Bulletin online

CTV2000 06 07
Month of Issue:  
June 2000
        
Classification: 
White
TELEVISION TECHNICAL BULLETIN
Page 1 of 1
Sharp Electronics (UK) Limited
Reference JR20062000-1
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
MODELS
51CS03H
51CS05H
59CS03H
59CS05H
59CSD8H
66CS03H
66CS05H
66CSD8H
SYMPTOM 1. Intermittent failure of one or both of the vertical supply line fuses (R631 and R632).
2. Frame rises up when warm until there is a  large  black band at  the bottom  of the
screen.  This can eventually lead to the 'rainbow effect' at the top of the screen.
3. Line tripping (same symptom when the Megatext IC goes faulty).
4. Slow to come out of standby.
CAUSE
Breakdown of Q707, causing variation of the main 5V supply rail to the vertical stage
and Megatext IC.
ACTION
This problem can be checked by measuring the voltage at the emitter of Q707 during
the fault condition.
Note that Q707 can fail  when  C714  is  replaced,  so  it  is  recommended  that  C714  is
changed at the same time as Q707.
REF NO
DESCRIPTION
PART NUMBER
PRICE CODE
Q707
Transistor, BC338-40
RH-TX0218BMZZ
AB
C714
Capacitor, 1000mF 10V 105°C
VCEAHA1AB108M
AD

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Here you can read online and download Sharp 66CS-D8H (serv.man16) Technical Bulletin in PDF. 66CS-D8H (serv.man16) technical bulletin will guide through the process and help you recover, restore, fix, disassemble and repair Sharp 66CS-D8H (serv.man16) 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.