Panasonic SC-TM900DVD, Service Manual

Page: 20 / 204

Item Operational Condition
and Key Function
Details Display TO Exit Mode
Jitter display While the player is
stopped and no disc is
inserted, press and hold
down the
button
on the player and the
number button, “5” on
the
remote controller
unit.
Press “Dimmer/FL
Display” button for next
page
Jitter display
Measures
and displays jitter.
Measurement is repeated every
second. Read error counter starts at 0
at the mode setting, and increased by
one as data read fails at target block. A
small defect is allowed to correct by
retry. Any possibility is counted as one
increment. Repetitive errors after retry
increase by two levels or more.
J
*1
xx
*2
yyy
*3
zz
*4
*1
: Jitter display mode
*2
: Jitter measurement value
*3
: Read error counter
*4
: Focus driving value
Values are shown to one decimal
place in the decimal digit. Focus
driving value is displayed in the
hexadecimal digit.
Press the STOP or
OPEN
button on
the player.
Error code display While the player is
stopped and no disc is
inserted, press and hold
down the
button
on the player and the
number button, “0” on
the
remote controller
unit.
Error code display
Displays the latest error code stored in
EEPROM. DVD_F---
*nn: Error history
*--: Error number
Press the OPEN
button.
Measurement of laser
current
electricity
initialization value
While the player is
stopped and no disc is
inserted, press and hold
down the
button
on the player and the
button on the
remote controller unit.
Press “Dimmer/FL
Display” button for next
page
Measurement of laser current
electricity initialization value
Memorizes each initialization value of
DVD and CD in EEPROM.
LDO
*1
xxx
*2
yyyy
*3
*1
: Laser current electricity
measurement mode
*2
: DVD current electricity value
*3
: CD current electricity value
Values are shown in the decimal
digit. The above example indicates
that the current electricity
initialization value is 13mA at DVD
laser and 32mA at CD laser when
laser is turned on.
Automatically exits
the mode after five
seconds.
Measurement of DVD
laser current electricity While the player is
stopped and no disc is
inserted, press and hold
down the
button
on the player and the
FUNCTION
button on
the remote controller
unit.
Press “Dimmer/FL
Display” button for next
page
Measurement of DVD laser current
electricity
Measures DVD laser current electricity
and displays the result together with
the
initialization value stored in
EEPROM. After measurement, DVD
laser is lit till the power is turned off (or
goes off when the primary power is
turned off).
LDD
*1
xxx
*2
yyyy
*3
*1
: DVD laser current electricity
measurement mode
*2
: Current electricity initialization
value stored in EEPROM
*3
: Present value of current
electricity
Values are shown in the decimal
digit. The above example indicates
that the current electricity
initialization value is 12mA and its
present value is 14mA.
Automatically exits
the mode after five
seconds.
ADSC internal RAM
display While the player is
stopped and no disc is
inserted, press and hold
down the
button
on the player and the
number button “1” or “2”
on the remote controller
unit.
ADSC internal RAM display
Reads and displays the RAM value
inside ADSC. The address is renewed
when the CLEAR key is pressed so
that the values at eleven points appear. FB0_0000
Values are shown in the
hexadecimal digit. The above
example indicates that ADSC
value at the address, FB0h is
0000h.
Press the STOP or
OPEN
button on
the player.
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