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2007 Toshiba America Consumer Products, LLC.
Page 7 of 13
SMART2006002_Version1.1
Troubleshooting Flowchart 2006 LCD
“Loss of Video (Blank Screen) Has OSD”
V1.0
Select Ant 1 input
without any RF
source attached
then look at the
Monitor Out
(Video) with
another TV
Snow on
Monitor Out?
Power Supply
OK?
CN81 Pin 2 (32v)
CN81 Pin 3 (5v)
CN81 Pin 6 (1.6v)
Yes
Replace D-Tuner
PCB
Low B Supply
OK
P811B Pin 5 (32v)
P811B Pin 9 (6v)
P812B Pin 1 (3.3v)
Main Power
Supply OK?
P803B Pin 15 (40v)
P803B Pin 5 (6v)
P803B Pin 9 (12v)
Check Fuses and
Main Power PCB
Replace Low B
PCB
Replace AV/
Terminal PCB
Yes
Yes
No
Yes
No
No Video But Has
OSD
~2.7v TP12
D-Tuner PCB
No
HDMI OK?
Yes
No
Replace AV/
Terminal PCB
Yes
Replace Seine/
Digital PCB
No
See Page 2 of 6 for Connector and Plug Locations
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