Panasonic SC-TM72DV, Service Manual, Page: 31 / 132

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 theremote
controller unit.
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 defectis allowed to correct by retry.
Any possibility is counted as one increment.
Repetitive errors after retry increase by two
levels or more. J*1 xxx*2 _yyy*3 _zz*4
*1 : Jitter display mode
*2 : Jitter measurement value
*3 : Readerror 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.
Error code display While the player is
stopped and no disc
is inserted, press
and hold down the
button on the
player and the
Error code display
Displays the latest error code stored in
EEPROM. DVDnn_F---
*nn: Error history
*--: Error number
DVD 01 FOBF Press the OPEN
button.
15.6 Mode Table 2
Following modes are available with combinations of the pressed buttons on the player and on the remote controller unit.
number button, “0”
on theremote
controller unit.
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.
Measurement of laser current electricity
initialization value
Memorizes each initialization value of DVD
and CD in EEPROM. LDO*1 _013*2 _032*3
*1 : Laser current electricity
measurement mode
*2 : DVD current electricity value
*3 : CDcurrent 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
DISPLAY button on
the remote
controller unit.
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 tillthe power is
turned off (or goes off when the primary
power is turned off). LDD*1 _012*2 _014*3
*1 : DVD laser current electricity
measurement mode
*2 : Current electricity
initializationvalue 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
itspresent 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” onthe 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. A*1 _FB0*2 _0000*3
*1 :ADSC internal RAM display
mode
*2 : Address
*3 : RAM value atdisplayed
address
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.