- 46-
4) No sound
No sound
Y
N
Check if there is sound input
signal
Reset
volume
Y
Y
Check the
input
source
N
Check if the volume control is
at 0 level or muted
Check the
speakers
Y
N
Check if there is output at
J
11
Check if there is +12V input at
PIN28of U19
Check if the power supply
system is damaged, short
circuit or mis-connected
N
Y
Check if PIN7
of U19 is low
voltage
Check the volume control
circuit from U19
Y
N
Check if there is signal input at PIN3
& PIN12 of U19
Check the volume input
circuit from to
U19
N
Y
Replace U19
Summary of Contents for LE26B13200
Page 19: ... 17 ...
Page 27: ...7 Electrical parts 7 1 Block diagram 25 AMP Headphone Coaxial 1 2 MSD318QT Main IC ...
Page 38: ...8 TV OPERATION 36 ...
Page 39: ... 37 ...
Page 40: ... 38 Press ENTER Key To Select ...
Page 41: ... 39 Press ENTER Key To Select ...
Page 42: ... 40 ...
Page 45: ... 43 9 Trouble shooting 9 1 Simple check ...
Page 47: ... 45 3 Panel display abnormally connector J9 is at normal level ...
Page 51: ... 49 7 PC no picture or picture abnormal ...
Page 52: ... 50 8 YPBPR AV no picture or picture abnormal Check Y ...
Page 59: ... 49 7 PC no picture or picture abnormal ...
Page 60: ... 50 8 YPBPR AV no picture or picture abnormal Check Y ...