22
TROUBLESHOOTING GUIDE
NO RASTER
yes yes
no no
no
yes
no
yes
yes
no
Indicator whether
light
Replace
adapter
Check whether
N25 Pin 7 is high
level
Replace N25
test X17 pin 1 and 2 and check
whether the voltage is 12V and
24V
Check whether N17 pin
5 the voltage 12V
Replace
N17
Check X21 pin
9.10.11.12.16.17.1
8.19.20waveform
Replace PANEL
Replace signal
processing board
Summary of Contents for LC30B1
Page 1: ...COLOR TELEVISION LC30B1 ...
Page 12: ......
Page 14: ...12 ...
Page 19: ...17 9 K4S641632C N12 10 DS90C383A N16 D S 90C 383A D S 90C F383A ...
Page 20: ...18 11 Z86129 N8 ...
Page 21: ...19 12 LVC16244 N13 N14 13 PI5330 N1 14 74LV126 N4 ...
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Page 28: ...26 EXPLODED VIEWS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 ...
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