3
．
There is picture but no sound.
Yes
Yes Yes
No
No No
Yes
No
No sound
Check if the voltage
of
NV02-4/5/32/32#
is
24V
?
Check
24V
power supply
circuits on power board and
power supply circuits from
XV03
to
NV02
on main board
are normal ?
Check if the voltage
of
NV02-10/27#
is
high level ?
Check if the
voltage of
NS01-F16/H16#
is low level?
Change
another
NV02
Check if circuits from
NS01-126/148#
to
NV02-10/27#
are
normal?
Touch
CV04
and
CV05
with probe,
check if there
is sound from
earphones?
Check if
audio
output
circuits
of main
chip are
normal?
Check if
there is
sound from
earphones?
Change
another
NS01
Check if circuits
about earphone
amplifier are
normal ?
Summary of Contents for LCD-32XR56DZ
Page 18: ...Block diagram ...
Page 23: ...WIRING DIAGRAM POWER BOARD POWER SWITCH PANEL BACKLIGHT DATA BOARD KEY BOARD IR BOARD SPEAKER ...
Page 35: ...Power Board ...
Page 39: ...APPENDIX B Exploded view LC 32KE56 ...
Page 44: ...Sep 2009 ...
