Troubleshooting.pdf | | CONFIDENTIAL
5 Troubleshooting
5-1 No Power
No
LAMP off, Power indicator LED off. Check a connection the 14V adapter?
Yes
Does proper DC 14V No
1 Change a 14V adaptor. (BN44-00051C)
appear at Pin 1 of CN205?
Yes
Does proper DC 14V No Check a connection the 6 Pin hamess and
2
appear at C847? change a input board assy. (BN59-00339A)
Yes
Does proper DC +3.3V_A, No IC801 or IC805 are bad.
3 +3.3V_B appear at
Change main assy. (BN94-00400A)
C826, C867?
Yes
Does proper DC +2.5V_A, No IC802 or IC806 are bad.
4 +2.5V_B appear at
C |