Sony KDL-40SL140 Training Manual page 33

1) All Red Blink patterns will occur on the Front
Panel Red "Timer/PIC OFF" LED
2) All voltage are measured prior to unit shutdown
3) Confirm all connections between circuit boards
before replacing
2X Blink Pattern
(12V LVP)
Check 12V at
CN602/pin 13
*Before Shutdown
Voltage
Approx. 12V
Check
"POWERON" at
CN602/pin 1
Does
"POWERON"
voltage 3.3V
Replace
IP5Z-Board
CTV-51
NOTES:
Reference Figure 3-1 & 3-2
for Test Point Locations
Is
Yes
?
No
▲
Replace
BM5-Board
No
?
Yes
KDL-40, 46SL140 Protection Mode
C1
Troubleshooting Flowchart C 1
Primary – Mostly Defect
▲
Unit Shuts OFF
Secondary – Possible Defect
■
RED LED
Last Resort – Improbable Defect
Blinking
(D2.5V & D1.8V LVP)
Triage Charts & Troubleshooting Flowcharts
3X Blink Pattern
Check connection
between IP5Z & BM5
Brds
Is
No Repair
connection
Connection
OK?
Yes
Replace
BM5-Board
32