Sony KDL-40BX450 Service Manual page 19

No Power
Does red standby
LED on front panel
Is standby LED
blinking?
Power Supply
*For Part Number information, Refer to
KDL-40BX450/40BX451/46BX450/46BX451
SECTION 3 - FLOW CHARTS AND DIAGRAMS
Press power
button while
Yes
monitoring pin 3 of
light? CN6401 on power
supply board
No
Yes
Protection Shutdown
No
Board*
"Section 4 - Disassembly/Part Number Information" on page
High (3.3V)
on pin 3?
See
High (3.3V)
on pin 2?
flowchart
Power Supply
NO POWER FLOWCHART
15.
Yes
Power Supply
No
Yes
Main Board*
No
Board*
Board*
11