Panasonic SA-XH201GW, Service Manual

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9.3. Self Diagnostic
By pressing various button combinations on the main unit and remote control unit, you can activate the various service modes for
checking.
Special Note:
• Due to the limitations of the no. characters that can be shown on the FL Display, the “FL Display” button on the remote control
unit can be used to show the two display pages. (Display 1 / Display 2).
• Refer to Section 6.1 for the section on “Remote Control Key Buttons Operations”.
9.3.1. Self Diagnostic Table 1 (For DVD)
FL Display
Key Operation
Front Key
Item
Description Mode Name
Initial setting of
laser drive
current
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 2.
Jitter rate is shown in decimal notation to one
place of decimal.
Focus drive value is shown in hexadecimal
notation.
(Display 1)
Jitter rate Jitter check
mode
(Display 2)
Lead
Error
Counter Focus Drive
Value
Press [ / ] to exit.
In STOP (with disc inside
tray) mode, press
[OPEN/CLOSE] button on
the main unit, and [5]
button on the remote
control unit.
Press [FL Display] on
remote control unit for next
page (FL Display).
Error code
check
Error code check
The latest error code stored in the
EEPROM IC is displayed.
Note: Refer to "(Section 9.4) Error
Code" for more detailed information on
the error codes.
Error code (play_err) is expressed in the
following convention.
Error code = 0 x DAXX is expressed:
DVDnn U12
Error code = 0 x DBXX is expressed: DVDnn H12
Error code = 0 x DXXX is expressed: DVDnn F123
Error code = 0 x 0000 is expressed: DVDnn F---
* "xx" denotes the error code
F / H / U
To exit, press [ / ] on
main unit or remote control.
In STOP (no disc) mode,
press [OPEN/CLOSE]
button on the main unit,
and [0] button on the
remote control unit.
*With pointing of cursor up
and down on display.
In STOP (no disc) mode,
press [OPEN/CLOSE]
button on the main unit,
and [PAUSE] button on the
remote control unit.
To exit, press
[OPEN/CLOSE] button on
the main unit and
[CANCEL] button on the
remote control unit.
Initial setting of laser drive current.
The value denotes the current in decimal
notation.
Laser current
measurement
mode