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1.7 Servicing items related to video navigation
The video navigation function built into this unit works by
storing the video navigation data in the internal EEPROM
and writing data in the cassette tape simultaneously.
The video navigation data stored in the EEPROM cannot
be copied to another EEPROM. Therefore, when the circuit
board mounting the EEPROM is replaced, the original
EEPROM should be mounted on the new board. This will
make the user’s video navigation data usable with the new
circuit board after replacement. However, the user’s data
cannot be restored if the EEPROM on the original circuit
board is damaged.
Note:
•
If the circuit board mounting the EEPROM or the
EEPROM alone has been replaced, it is required to per-
form confirmation/re-adjustment on all of the adjust-
ment items using the EVR as well as those which are
adjusted by transmitting adjustment codes from the Jig
RCU.
1.6 Jig RCU mode
This unit uses the following two modes for receiving remote
control codes.
1) User RCU mode : Ordinary mode for use by the user.
2) Jig RCU mode : Mode for use in production and serv-
icing.
When using the Jig RCU, it is required to set the VCR to
the Jig RCU mode (the mode in which codes from the Jig
RCU can be received). As both of the above two modes
are stored in the EEPROM, it is required to set the VCR
back to the User RCU mode each time that an adjustment
is made or to check that the necessary operations have
been completed. These modes can be set by the opera-
tions described below.
1.6.1 Setting the Jig RCU mode
(1) Unplug the power cord plug from the power outlet.
(2) Press and hold the “REC” and “PAUSE” buttons on the
VCR simultaneously, while plugging the power cord plug
into the power outlet.
When the VCR is set to the Jig RCU mode, the symbols
( “ : ” ) in the time display of the FDP are turned off.
1.6.2 Setting the User RCU mode
(1) Turn off the power.
(2) Press the “REC” and “PAUSE” buttons of the VCR si-
multaneously. Alternatively, transmit the code “80” from
the Jig RCU.
www.freeservicemanuals.info
Digitized in Heiloo the Netherlands
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