Read Sony KDL-55W805A Service Manual online
KDL-55W805A 8
SECTION 2 - TROUBLESHOOTING
NO POWER FLOWCHART
No Power
Is standby LED
blinking?
No
Yes
No
See protection
flowchart
Yes
Does red standby
LED on front panel
light?
High (>2.5V)
on Pin 27 of CN6401
on Power Supply?
Yes
No
Main Board*
High (3.3V)
appears
momentarily?
Yes
No
Power Supply
Board*
Power Supply
Board*
Remove AC power and
wait at least 30
seconds before
reapplying.
Power Supply
Board*
Press power button while
monitoring Pin 28
of CN6205 on
Power Supply Board.
*For Part Number information, refer to
“Section 4 - Exploded View/Part Number Information” on page 19
.
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