Sony TRINITRON PVM-14L3 Service Manual page 24

8. Reading of service data
When reading data from the ROM to the RAM, press
the [B/O] key once and check than the READ display
is shown in the guidance, and then press the [B/O] key
once again. The adjustment data that is written will
return to its previous state, so please be careful.
9. Writing of service data
When writing data from the RAM to the ROM, press
the [DEGAUSS] key once and check that the WRITE
display shown in the guidance, and then press the
[DEGAUSS] key once again. Not only the displayed
data will be written, but all data, so please be careful.
10, Carrying out FACTORY RESETTING
In case the adjustment data has been destroyed for
some reason, and you keep pressing the [B/O] key at
the beginning of the above reading, the READ guid-
ance will change to FACTORY RESET guidance in
approximately 3 seconds so that the factory resetting
can be carried out. By once again pressing the [B/O]
key after this, resetting will be carried out ({:*] will be
displayed as status) and factory resetting will be
executed, However, in case the data available at the
time of shipment from the factory has been destroyed,
or if the ROM has been replaced, etc., or if factory
setting mentioned later on has been carried out, factory
resetting is executed,
11, Carrying out FACTORY SETTING
Make sure to make possible the above factory resetting
by making a copy of the adjustment data when replac-
ing the ROM. If you keep pressing the [DEGAUSS}
key at the beginning of the above writing, the WRITE
guidance will change into FACTORY RESET guid-
ance after approximately 3 seconds. By once again
pressing the [DEGAUSS] key after this, setting will be
carried out ([} will be displayed as status) and the
data will be copied. By carrying out this operation, the
selection items of the menu and the adjustment values
will be reset to the standard conditions, so please be
careful. If this operation is carried out once, it cannot
be carried out again, but the FACTORY SET FLAG
(No. 120) in the service mode can be set to 1.
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