Panasonic SA-PT480PH Service Manual page 22

6.2.1. Service Mode Table 1 (For DVD)
Item
Mode Name
Error code Error code check
check The latest error code stored in the
EEPROM IC is displayed.
Note: Refer to "[Section 6.4] DVD Self
Diagnostic Function-Error Code" for
more detailed information on the error
codes.
Jitter check Jitter check.
Jitter rate is measured and displayed.
Measurement is repeatedly done in
the cycle of one second. Read error
counter starts from zero upon mode
setting.
When target block data failed to be
read out, the counter advances by one
increment. When the failure is caused
by minor error, it may be corrected
when retried to enable successful
reading.
In this case, the counter advances by
one. When the error persists even
after retry, the counter may jump by
two or more.
FL Display sequence:
Display 1
Initial setting of Initial setting of laser drive current.
laser drive Initial current value for the DVD laser
current and CD laser is separately saved in
the EEPROM IC.
FL Display sequence:
Display 1
Description
2.
2.
FL Display
F / H / U
Error code (play_err) is expressed in the
following convention.
Error code = 0 x DAXX is expressed:
Error code = 0 x DBXX is expressed:
Error code = 0 x DXXX is expressed:
Error code = 0 x 0000 is expressed:
* "xx" denotes the error code
(Display 1)
Jitter check
mode
Jitter rate is shown in decimal notation to one
place of decimal.
Focus drive value is shown in hexadecimal
notation.
(Display 2)
Lead
Error
Counter
(Display 1)
Laser current
measurement
mode
The value denotes the current in decimal
notation.
(Display 2)
CD
Laser
The above example shows the initial current
is XXXmA and YYYmA for CD laser and
DVD laser respectively when the laser is
switched on.
22
Key Operation
Front Key
In STOP (no disc) mode,
press [STOP] button on the
main unit, and [0] button on
the remote control unit. *With
pointing of cursor up and
down on display.
To exit, press [POWER]
DVDnn U12
button on main unit or
DVDnn H12
remote control.
DVDnn F123
DVDnn F---
In STOP (with disc inside
tray) mode, press [STOP]
button on the main unit,
and [5] button on
the remote control unit.
Jitter rate
Press [POWER] or [STOP]
button to exit.
Press [FL Display] on
remote control unit for next
page (FL Display).
Focus Drive
Value
In STOP (no disc) mode,
press [STOP] button on the
main unit, and [PAUSE]
button on the remote
control unit.
Press [FL Display] on
remote control unit for next
page (FL Display) on values
of laser drive current.
DVD Laser