Sony TRINITRON PVM-14L5 Service Manual page 24

Color video monitor
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5. Executing FACTROY LOAD
If the adjustment data is damaged or lost by some
reasons, you can restore the default factory adjustment
data by executing FACTROY LOAD as described
below.
Select the following submenus from the Service Menu
in the order of : [SYSTEM] → [FACTROY...] →
[LOAD...] to read the default factory data. If the
default factory data is damaged or the ROM is re-
placed without executing FACTORY SAVE as
described in the following paragraph, you cannot
execute FACTROY LOAD.
6. Executing FACTORY SAVE
This operation is to write the FACTROY LOAD data
into the factory data area in the memory.
Select the following submenus from the Service Menu
in the order of : [SYSTEM] → [MAINTENANCE ID]
and type 111. Then select the following submenus
from the Service Menu in the order of : [ENGINEER]
→ [FACTROY SAVE] to write the factory data in the
memory. FACTORY SAVE is protected from mis-
operation so that FACTORY SAVE cannot be execut-
ed unless MAINTENANCE ID is set.
FACTORY SET
If the following circuit board is replaced or the following
NVRAM on the respective board is replaced, perform the
following settings.
B board : IC104, IC108, IC109
B1 board: IC4804
1. Select the following submenus from the Service Menu
in the order of : [SYSTEM] → [MAINTENANCE ID]
and type 111.
2. Select the following submenus from the Service Menu
in the order of : [SYSTEM] → [MODEL GRADE] →
[MODEL TYPE] and write the model data of each
model in the [MODEL TYPE] referring to table 2-4.
3. If the NVRAM on the B board is replaced, select the
following submenus from the Service Menu : [ENGI-
NEER] → [CLEAR NVM ON B] and write data.
4. If the NVRAM on the B1 board is replaced, select the
following submenus from the Service Menu : [ENGI-
NEER] → [CLEAR NVM ON B1] and write data.
5. If any IC on the B board is replaced, perform all
adjustment items of the [SIGNAL] menu and of the
[DEFLECTION] menu.
If any IC on the B1 board is replaced, perform the
adjustment items of the [SIGNAL] → [DECODER
COLOR] and of [DECODER LEVEL] menus.
6. Upon completion of adjustment, select the menus
[ENGINEER] → [FACTORY SAVE] to save the
adjustment data.
2-2

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