Sharp C-1421H (serv.man14) Service Manual / Technical Bulletin ▷ View online
CTV2000 07 11
Month of Issue:
July 2000
Classification:
White
TELEVISION TECHNICAL BULLETIN
Page 1 of 1
Sharp Electronics (UK) Limited
Reference TT07072000-6
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
C1421H
CV2121H
CV2123H
CV3709H
SYMPTOM Set comes out of standby, then turns off.
CAUSE
Protection circuit operating.
ACTION
To disable the protection circuit, remove Q604. This will allow the receiver to turn on
as the microprocessor is not being reset by Q604.
Note that when the set is turned on, with Q604 removed, if the problem causing the
protection circuit to operate is of a catastrophic nature, more problems could occur.
It is strongly recommended that Q604 is replaced before returning to the set to the
customer.
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