Toshiba D-VR4SU Service Manual page 61

This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily.
To enter to the SERVICE MODE function, press and hold both buttons simultaneously on the main unit or on the main unit
and on the remote control for more than a standard time in the appropriate condition. (See below chart.)
In case of the main unit and remote control, press the remote control buttons first, then press the main unit buttons.
Set
Set Key
Condition
VCR mode CH UP
DVD mode CH UP
VCR mode
CH UP
(Playback)
VCR mode CH UP
VCR mode
VCR/DVD
(Playback)
VCR mode
CH UP
(Playback)
Power On CH DOWN
Power Off CH DOWN
Set
Set Key
Condition
DVD mode
STOP
(STOP)
DVD mode
STOP
(No disc)
DVD mode
STOP
(No disc)
DVD mode
STOP
(No disc)
DVD mode
STOP
(STOP)
SERVICE MODE LIST
Standard
Set Key
Time
FF 2 sec.
PLAY 2 sec.
CH DOWN 2 sec.
REC 2 sec.
REC 2 sec.
STOP 2 sec.
VCR/DVD 2 sec.
POWER 2 sec.
Standard
Remocon
Time
Key
0 2 sec.
2 2 sec.
6 2 sec.
7 2 sec.
8 2 sec.
PLAY/REC total hours are displayed on the TV Monitor.
Refer to the "PREVENTIVE CHECKS AND SERVICE INTERVALS"
(CONFIRMATION OF HOURS USED).
Can be checked of the INITIAL DATA of MEMORY IC (VCR side).
Refer to the "WHEN REPLACING EEPROM (MEMORY) IC".
Initialization of the factory.
NOTE: If you set a factory initialization, the memories are reset
such as the clock setting, the channel setting, and PLAY/
REC total hours.
Adjusting of the Tracking to the center position.
NOTE: Also can be adjusted by pressing the ATR button for more
than 2 seconds during PLAY.
The BOT, EOT, and the Reel Sensor do not work and the VCR
deck can be operated without a cassette tape.
Refer to the "PREPARATION FOR SERVICING"
Adjust the PG SHIFTER automatically.
Refer to the "ELECTRICAL ADJUSTMENT".
Display of the DVD AUDIO LEVEL and SEPARATION Adjustment
MENU on the screen.
Refer to the "ELECTRICAL ADJUSTMENT".
Information screen displayed on the TV Monitor.
Refer to the "WHEN REPLACING NEW DVD LOADER".
VCR operation mode at no connection of DVD.
Refer to the "PREPARATION FOR SERVICING"
NOTE: Although the DVD is connected, the DVD mode cannot be
selected.
Tray cannot be opened.
Refer to the "TRAY LOCK".
No indications on the screen when the Tray Lock is setting.
NOTE:
The function will only work without the setting of DVD disc
at DVD mode.
DVD Write mode.
Refer to the "RE-WRITE FOR DVD FIRMWARE".
Can be checked of the INITIAL DATA of MEMORY IC (DVD side).
Refer to the "WHEN REPLACING EEPROM (MEMORY) IC".
Releasing of PARENTAL LOCK.
Refer to the "PARENTAL CONTROL - RATING LEVEL".
NOTE: The function will only work without the setting of DVD disc
at DVD mode.
Region setting.
Refer to the "WHEN REPLACING NEW DVD LOADER".
C2-1
Operations
Operations
D-VR4SU/D-VR4SC