Read Sharp LC-15SH1E (serv.man10) Service Manual online
24
LC-13SH1E
LC-15SH1E
LC-15SH1E
TROUBLE SHOOTING TABLE
(Continued)
No
No
No
Yes
Yes
No
No
Yes
Yes
No
Yes
No Sound (1/2)
Check the L_MUTE,
SO_DEF line and their
peripheral parts.
Check IC501 and its
peripheral parts.
Check Q3901, Q3904,
Q3905 and their
peripheral parts.
Is output at pin (3) of
D3901 in "L" state?
Is output at pins (C16)
and (D16) of IC501
normal?
Check the line and its
peripheral parts.
No Sound from
headphone
Is input at pins (2) and
(3) of J3701 normal?
Check IC3301 and
its peripheral parts.
Check IC501, R_IN,
L_IN line and their
peripheral parts.
Muting effect is on.
Check the SP_Mute
line and its peripheral
No sound from
front speaker.
Is input at pin (9) of
IC3301 in "H" state?
Is output at pins (C17)
and (D17) of IC501
normal?
Is output at pins (2), (4),
(10) and (12) of IC3301
normal?
Check front speaker
and connection cable.
No Sound from
output line
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