Panasonic SA-PT480PH Service Manual page 24

6.2.3. Service Mode Table 3 (For DVD)
Item
Mode Name
Micro-processor Micro-processor firmware version
firmware version display & EEPROM checksum display.
display & EEPROM checksum is only available
EEPROM due to existence of EEPROM IC.
checksum
display. Note: Condition 1/2/3 shows the state
of EEPROM IC.
FL Display sequence:
Display 1
Initialization Initialization.
User settings are cancelled and player
is initialized to factory setting.
It is necessary when after replacement
of Micro-processor (DV5 LSI) IC,
FLASH ROM IC (IC8651), EEPROM
IC (IC8611) & Main P.C.B.
(DVD) To reset Main P.C.B.
Main P.C.B. This process is used when the Main
Reset P.C.B. or FLASH ROM IC is replaced
with a new one.
Description
2 3.
FL Display
(Display 1)
(Display 2)
(Condition 1)
If the version of the EEPROM does not match,
[NG] is displayed.
(Condition 2)
(a) If there is NO EEPROM header string
OR
(b) If there is no EEPROM (no data is received
by Micro-processor), [NO] is displayed.
(Condition 3)
If the EEPROM version matches, checksum
[YYYY] is displayed.
(Display 3)
Opecon
Version
24
Key Operation
Front Key
In STOP (no disc)
mode, press [STOP]
button on the main unit,
and [7] button on the
remote control unit.
Cancelled automatically
5 seconds later.
Press [FL Display] button on
EEPROM
remote control unit for next
Checksum
page. (FL Display)
(If applicable,
refer below.)
In STOP (no disc)
mode, press [STOP]
button on the main unit,
and [ 10] button on the
remote control unit.
While in initialization
mode, press & hold
[STOP] button on the main
unit for 3 seconds, follow
by [ENTER] button on the
remote control unit.