Sony PFM-50C1 Service Manual page 34

Service Mode
1. EEPROM Initialize
EEPROM Configuration
Table 1 shows the configuration of EEPROM. The entire
area or the respective areas of the EEPROM can be
separately initialized.
Menu Structure
Select the desired area of EEPROM to be initialized using
the following menu.
Service Mode
EEP ROM Initialize
Whole Area
Common
White Balance
Prog. Gamma
Tuner
Prog. Preset
Last Memory
User Memory
Factory
To initialize the desired area, firstly select the desired item
from the EEPROM RESET menu. Change the selected
item from "CANCEL" to "OK". Then press "ENTER".
a) Whole Area
It initializes whole area of EEP ROM.
This command is identical to executing the all items of
"Common", "White Balance", "Prog. Gamma",
"Tuner", "Prog. Preset", "Last Memory", "User
Memory" and "Factory".
Execute this command only when the memory
(IC1007) on the B board is replaced.
b) Common
It initializes "Common (1)", "Common (2)" and
"Common (3)" of the "COMMON DATA AREA"
shown in Table 1.
It initializes the data unique to the particular machine
and the shared data (various setup values of the user
menu".
Because it initializes the serial number and accumula-
tive operation hours, do not execute this command.
2-2
c) White Balance
It initializes "Color Temp (1)" and " Color Temp (2)"
of the "COMMON DATA AREA" shown in Table 1.
It initializes the color temperature "High", "Mid" and
"Low", and all data of user setup 1 to 3 to all 0.
It also initializes the user name to "User1", "User2"
and "User3".
d) Prog. Gamma
This command is not used in this machine.
e) Tuner
This command is not used in this machine.
f) Prog. Preset
It initializes the "PRESET DATA AREA" shown in
Table 1.
It resets the backup preset area.
g) Last Memory
It initializes "LAST MEMORY AREA" shown in
Table 1.
It initializes the last memory data that user has adjust-
ed for each signal.
h) User Memory
It initializes "USER MEMORY AREA" shown in
Table 1.
It resets all of the 20 types of the adjustment data that are
saved in the "User Memory" function of the user menu.
i) Factory
It resets the EEP ROM to the factory default status.
All of the EEP ROM areas except the following are
initialized by this command.
Items that are not initialized by the "FACTORY"
RESET function.
In the COMMON DATA AREA
1 Index Number stored in the Common (1) [General]
2 Watch Error and Serial Number data stored in the
Common (2) [General]
3 Service (1) [AD Converter] Adjustment data of 2-4.
AD Calibration Adjustment.
4 Service (2) [Chroma Decoder] Adjustment data of 2-5.
Sub Color, Sub Hue adjustment and 2-6. Video
decoder adjustment.
5 Adjustment data in Color Temp (1) [Data & Name] at
the factory except user adjustment value. (Adjustment
data of 2-3. White Balance Adjustment)
PFM-50C1/50C1E