Sony KDL-40SL140 Training Manual page 36

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
Temperature Threshold
Ambient 75°c
Yes
CTV-51
NOTES:
7X Blink
Pattern
Reference Figures 3-1 & 3-2
(Temperature )
Does
unit Shut-Down
Immediately after
Power ON
?
No
Clear unit ventilation areas
and confirm adequate local
room temperature
No Problem
Does unit still
shutdown (7X)?
Solved
Yes
*
Replace
BM5-Board
C4
Primary – Mostly Defect
Unit Shuts OFF ▲
Secondary – Possible Defect
■
RED LED
Last Resort – Improbable Defect
Blinking
for Test Point Locations
IP5Z Board
Triage Charts & Troubleshooting Flowcharts
KDL-40, 46SL140 Protection Mode
Troubleshooting Flowchart C 4
8X Blink
Pattern
(Audio)
Check AU13V at
CN4001/pin 4
*Before Shutdown
Is voltage
▲
No
13V
IP5Z-Board
Present?
Yes
Check
Speakers &
Connections
Do
■
Speakers
No Replace
Measure
Speaker(s)
8 ohms
?
Yes
Replace
BM5-Board
Replace
35