Read Sharp LC-15B5E (serv.man9) Service Manual online
23
LC-15B5E
TROUBLE SHOOTING TABLE
(Continued)
No picture (2/3)
Check all the settings microprocessor's adjust process menu.
Is input at pin
(2) of IC2201
normal?
Check IC2201
and its peripheral
parts.
No VIDEO 1
output
Check the V2_SY-line,
V2_SC-line and their
peripheral parts.
Is input at pin (10) ,
(12) of IC3401
normal?
No S-VIDEO
output
Check IC8801
and its
peripheral parts.
No
No
No
No PC Card
output
Yes
Yes
Yes
No TELETEXT
output
Is input at pins (1),
(2), (3), and (79) of
IC8801 normal?
No
Check the R, G, B
and FB line.
Is input at pins (6)~(8)
and (14) of IC1602
normal?
No
No
Yes
No
Yes
No
No
Yes
Check their lines
and its peripheral
parts.
Is output at pins
(57)~(59) and (60) of
IC1601 normal?
Check IC1601 and its
peripheral parts.
Are the card medium
and its files normal?
Is the voltage at pins
(24), (27), (74) and
(77) of SC5401 at the
PC card part normal?
Is the voltage at pin
(3) of IC5409 and
pins (1), (2) and (3)
of IC5004 normal?
Check the medium
and its files.
Check the power
supply line.
Check the power
supply line.
Is output at IC8602
and IC8606 normal?
Check that line.
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