Loss Of Video (Blank Screen) Has Osd - Toshiba 42HL196 Service Manual

Troubleshooting Flowchart 2006 LCD

"Loss of Video (Blank Screen) Has OSD"

No Video But Has
OSD
Power Supply
OK?
No
Low B Supply
OK
No
Main Power
Supply OK?
Yes
Replace Low B
PCB
See Page 2 of 6 for Connector and Plug Locations
______________________________________________________________________________
2007 Toshiba America Consumer Products, LLC.
SMART2006002_Version1.1
CN81 Pin 2 (32v)
CN81 Pin 3 (5v)
CN81 Pin 6 (1.6v)
Select Ant 1 input
without any RF
source attached
Yes then look at the
Monitor Out
(Video) with
another TV
P811B Pin 5 (32v)
P811B Pin 9 (6v)
P812B Pin 1 (3.3v)
Replace AV/
Yes
Terminal PCB
P803B Pin 15 (40v)
P803B Pin 5 (6v)
P803B Pin 9 (12v)
Check Fuses and
No
Main Power PCB
Snow on
Yes
Monitor Out?
No
~2.7v TP12
D-Tuner PCB
Yes
HDMI OK? Yes
No
Replace Seine/
Digital PCB
11
V1.0
Replace D-Tuner
PCB
Replace AV/
Terminal PCB
Page 7 of 13