Hitachi P50H401/DW3-U Service Manual page 136

TROUBLESHOOTING THE 50AE1 PANEL
(2)
Does vertical bar
appears in left
half of Panel?
It locates at the center of screen
Panel is defective.
(3)
Y
Turn off the main power.
N
Replace ABUSR board.
Turn Set On.
Normal?
Turn off the main power.
Replace LOGIC board.
Turn Set On.
Normal?
Turn off the main power.
Replace signal cables LOGIC - ABUSR.
Turn Set On.
Normal?
Turn off the main power.
Replace ABUSC board.
Turn Set On.
Y
N
N
Y
Y
N
Y
Normal?
N
Turn off the main power, End of analysis
134
ABUSR board is defective.
LOGIC board is defective.
Signal cable is defective.
ADM is defective.
(Panel is defective.)
ABUSC board is defective.