2
2
TROUBLESHOOTING GUIDE
(press remote control or BOX power button,then the red indication lamp power off,in normal condition
the lamp change from red to blue.)
NO SCREEN DISPLAY,BACK LIGHT ON
Back light off
no
no
normal
normal
no
no
Check whether power
supply IC
Check power supply
circuit and IC
Check whether N205 pin3 the
voltage changing low level
Replace N205
No screen display,back
light off
Check wether back light
power +14V is normal
Check whether N407 pin 7
the v5V output
Obviate back light
power supply is normal
Flash write process in N407
Summary of Contents for LC-30K9A(W)
Page 1: ...COLOR TELEVISION LC 30K9A W LC 40K9A...
Page 17: ...15 4 JAG ASM...
Page 18: ...16 5 SiI170...
Page 19: ...17 6 LX1722...
Page 20: ...18 WIRING DIAGRAM 1 L30K9A W...
Page 21: ...19 2 L40K9A...
Page 32: ...L30K9A W SCH...
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Page 50: ...L40K9A SCH...
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