Panasonic SA-VK950EE Service Manual ▷ View online
10.3. Special Mode Table 2
Item
FL Display
Key Operation
Mode Name
Description
Front Key
Self -Diagnostic
Mode
To
enter
into
self
diagnostic checking for
main unit.
main unit.
1.
Select [
] for DVD/CD mode.
(Ensure no disc is inserted into the drive
unit.)
unit.)
2.
Press and hold [
] button for 3
seconds follow by [
].
To exit, press
button on main
unit or remote control.
CD Changer
Reliability Test
(CRS1D)
To
determine
the
reliability
of
CD/DVD
Changer Unit.
(For more
(For more
information,
refer to section 10.3.2)
In Self-Diagnostic Mode:
1.
1.
Select [
] for CD mode.
2.
Press [1] on remote control..
To exit, press
button on main
unit or remote control.
(The tray will return to PLAY position and then
power off)
(The tray will return to PLAY position and then
power off)
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SA-VK950EE
Item
FL Display
Key Operation
Mode Name
Description
Front Key
Doctor Mode
To enter into “Doctor
Mode” for purpose of
checking various
functions of the main unit
(Example: Micro-p
Firmware version &
EEPROM IC check etc)
Mode” for purpose of
checking various
functions of the main unit
(Example: Micro-p
Firmware version &
EEPROM IC check etc)
1.
FL will light up for all segments
2.
Device display
3.
4.
In doctor mode (under CD mode)
1.
All segments will light up for 1 second.
In CD mode:
1.
1.
Press [
] button on main unit
follow by [4] and [7] on remote control.
(Ensure no disc is inserted into drive unit.)
To exit, press [ENTER] button on remote
control or
control or
button on main unit
or remote control.
Note: In firmware version & checksum data
(EEPROM IC) displayed when the buttons is
pressed twice.
Note: In firmware version & checksum data
(EEPROM IC) displayed when the buttons is
pressed twice.
Cold Start
Initialize backup data and
start the micro-processor.
start the micro-processor.
In doctor mode:
1.
1.
Press [4] on remote control.
To exit, press [ENTER] button on remote
control or
control or
button on main unit
or remote control.
FL Display Test To
check
the
FL
segments
display
(All
segments will light up and
LED will blink at 0.5
second interval)
LED will blink at 0.5
second interval)
In doctor mode:
1.
1.
Press
button on remote
control.
Tape Eject Test To check on the tape
eject function (For deck
1/2)
1/2)
Both deck will be eject automatically.
In doctor mode:
1.
1.
Press [0] button on remote control.
Firmware version
check &
EEPROM IC
Information
To display the micro-
processor
processor
firmware
version & checksum date
when
when
there
is
an
EEPROM IC istalled
1.
Firmware version display & the EEPROM.
In doctor mode:
1.
1.
Press [
] button on main unit
follow by [4] and [7] on remote control.
To exit, press [ENTER] button on remote
control or
control or
button on main unit
or remote control.
Refer to Section 10.3.1 for more information.
Refer to Section 10.3.1 for more information.
Firmware version
checking (For
DVD Module)
DVD Module)
To display the firmware
version
version
for
the
DVD
Module
(Firmware is loaded to
FLASH ROM IC)
(Firmware is loaded to
FLASH ROM IC)
In doctor mode:
1.
1.
Press [
] button on main unit
follow by [CANCEL] on remote control.
To exit, press [ENTER] button on remote
control or
control or
button on main unit
or remote control.
H417: For GC/ GS region
J417: For GCS/ GCT region
H417: For GC/ GS region
J417: For GCS/ GCT region
10.3.1. EEPROM Checksum (ROM Correction)
Purpose: To check for microprocessor firmware version and EEPROM checksum (ROM correction).
Below are the procedures for this mode.
Step 1: Enter into Doctor mode (for more information, refer to section 10.3 on the key operation to enter into this mode.
Step 2: Check for firmware version and EEPROM checksum (By pressing STOP button on main unit followed by “4” and “7” on
remote control).
· When entering into DOCTOR MODE, the firmware version and checksum data of EEPROM (if applicable) will appear on FL
Below are the procedures for this mode.
Step 1: Enter into Doctor mode (for more information, refer to section 10.3 on the key operation to enter into this mode.
Step 2: Check for firmware version and EEPROM checksum (By pressing STOP button on main unit followed by “4” and “7” on
remote control).
· When entering into DOCTOR MODE, the firmware version and checksum data of EEPROM (if applicable) will appear on FL
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SA-VK950EE
display. Below is the information on the EEPROM IC (ROM correction) under 3 possible situations:
1. In the case that the correction point existence data is other than 0 (ie. correction file exists), EEPROM checksum display for
the microprocessor shall be made after calculating checksum by summing up the content of data area from EEPROM IC.
the microprocessor shall be made after calculating checksum by summing up the content of data area from EEPROM IC.
2. In the case when no EEPROM IC is installed. It is display as below (no display of checksum data)
3. In cases that the filename is different even though a EEPROM is installed, or no correction file exists, [NG] shall be displayed
(the correction point existence data is set to 0 at this condition).
(the correction point existence data is set to 0 at this condition).
Note: Microprocessor firmware refers to version number for microprocessor IC located on PANEL P.C.B.. It is subject to change
which would be updated accordingly. ROM correction checksum refers to the HEX code that is displayed upon key buttons pressed
if an EEPROM is loaded in the unit.
which would be updated accordingly. ROM correction checksum refers to the HEX code that is displayed upon key buttons pressed
if an EEPROM is loaded in the unit.
10.3.2. CD/DVD changer unit ageing test mode
Below is the process flow chart of ageing for the CD/DVD changer unit. (CRS1D)
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SA-VK950EE
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SA-VK950EE
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