Philips 32PF9968/10 Service Manual page 73

8.3.6 Options
The microprocessor communicates with a large number of I
ICs in the set. To ensure good communication and to make
digital diagnosis possible, the microprocessor has to know
which ICs to address. The presence/absence of these specific
ICs (or functions) is made known by the option codes.
Notes:
The new option setting becomes active after the TV is switched
"off" and "on" again with the mains switch (the EAROM is then
read again).
When the NVM is replaced, all options will require resetting. To
be certain that the factory settings are reproduced exactly, you
must set all option numbers. You can find the correct option
numbers in table "Option Codes OP1...OP7" below.
How to Change an Option Byte
An option code (or "option byte") represents eight different
options (bits). When you change these numbers directly, you
can set all options very quickly. All options are controlled via
seven option numbers (OP1... OP7).
Activate SAM and select "Options". Now you can select the
option byte (OP1.. OP7) with the CURSOR UP/ DOWN keys,
and enter the new 3 digit (decimal) value. For the correct
factory default settings, see the table "Option codes
OP1...OP7" below. For more detailed information, see the
second table "Option codes at bit level". If an option is set
(value "1"), it represents a certain decimal value.
When all the correct options (bits) are set, the sum of the
decimal values of each Option Byte (OP) will give the option
code.
Leaving the "Option" submenu saves the changes in the Option
Byte settings. Some changes will only take effect after the set
has been switched "off" and "on" with the AC power switch (cold
start).
Table 8-5 Option codes OP1...OP7
Option Byte
OP1
OP2
OP3
OP4
OP5
OP6
OP7
How to Change Options at Bit Level
If you wish to know which features or settings of the
HERCULES are changed via OP1...OP7, or if you want to
change each option or feature Bit by Bit, use the more detailed
table "Option codes overview" table.
Note: the next table "Option codes at bit level) contains only
that part of the NVM settings that can be changed.
2
C
32PFL5312 37PFL7312 42PFL7312
128 128
005 005
013 077
098 098
252 252
090 090
016 016
Alignments LC4.8L LA 8. EN 73