TX-20LB5F, G, TX-20LB5P, G - Panasonic TV Service Manual (repair manual). Page 14

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TX-20LB5F/G
TX-20LB5P/G
14
 
8.3. Option Description 
   There are two option bytes available (16 bits in all). These option bits are available from FACTORY and SERVICE mode. First 
find the OPTION1 or OPTION2 control, and then use the UP/DOWN and PLUS/MINUS keys on the relevant remote keypad to 
control the bits. The table below shows the two option bytes available;
 8.3.1 OPTION 1
B7
B6
B5
B4
B3
B2
B1
B0
1
TOP 
Teletext
OFF
FASTEXT 
(FLOF) OFF
PANEL 4:3
Not used
Dolby 
Virtual 
OFF
PC
Disable
TUNER OPTIONS
00 = Philips
01 = Not used
10 = Alps
11 = Partsnic
0
TOP 
Teletext 
ON
FASTEXT 
(FLOF) ON
PANEL 15:9
Not used
Dolby 
Virtual 
ON
PC
Enable
 8.3.2  OPTION 2
B7
B6
B5
B4
B3
B2
B1
B0
1
Fixed to ‘0’
PANASONIC 
remote 
control
Must be set 
to ‘1’
Not used
Not used
Full ATSS
PAT 
Enabled
Must be set 
to ‘1’
0
Daewoo
Remote 
control
Must be set 
to ‘1’
Not used
Not used
Basic ATSS
PAT 
Disabled
Must be set 
to ‘1’
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