JVC HR-S9850EK, Service Manual

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1-9
1.8 Servicing the video navigation function
The video navigation function built into this unit works by stor-
ing the video navigation data in the internal Flash memory
and writing data in the cassette tape simultaneously.
Therefore, the Flash memory and the cassette tape (self- re-
corded tape) form a related pair. If the Flash memory or the
board assembly (in which the Flash memory is included) is
replaced, the video navigation function will not operate. In
this case, it is required to copy the video navigation data in
the original Flash memory into the Flash memory of the unit
which the navigation function is available.
1.8.1 Copying the video navigation data
Notes:
• When copying the video navigation data, initialization
of the Flash memory of the master unit is required.
• Connect the JLIP cable to each “JLIP terminal” of the
VCR.
JLIP Cable (Parts No. : QAM0129-001 or PEAC0453)
Fig. 1-8-1a Connection diagram
(1) Set the VCR to the Jig RCU mode (the mode in which
codes from the Jig RCU can be received).
(2) Turn off the power of the 2 units (slave and master) VCR
and set it without a cassette tape.
(3) Press the “PLAY” button of the slave unit for 7 seconds.
When the copy mode is set, “1” will be displayed on the
FDP. (To cancel the copy mode, press the “PLAY” but-
ton of the slave unit.)
(4) Press the “PAUSE” button of the master unit for 7 sec-
onds. When the copy mode is set, “2” will be displayed
on the FDP. (To cancel the copy mode, press the
“PAUSE” button of the master unit.)
Player <Slave Unit (S)>
JLIP cable
Recorder <Master Unit (M)>
[CONDITION]
•
Power OFF
•
No cassette tape
[CONDITION]
•
Power OFF
•
No cassette tape
•
Flash memory initialization
FDP : 1 (S)
FDP : 2 (M)
FDP : 3 (M)
FDP : 4 (M)
<Completed>
FDP : 5 (M)
<Error>
FDP : 1 (S)
(5) Press the “STOP” button of the master unit.
When copying is started,“3” will be displayed on the FDP
and when copying is completed the FDP display changes
from “3” to “4” .
When an error occurs during the copying process, “5” will
be displayed on the FDP. During such an occurrence the
slave unit FDP display is “1” .
(6) Press the“STOP” button of the master unit.
The copy mode of the master and slave unit will be can-
celled simultaneously.
1.8.2 Erasing the video navigation data (Initialization)
This is the service mode to erase all the video navigation
data inside the Flash memory. When a unit is replaced or
after an operations check, erase the data which is not re-
quired while observing the TV screen.
Notes:
• During Flash memory initialization, the transmission of
the Jig code may affect the peripheral VCR. Therefore,
when initializing the Flash memory, be sure to unplug
the peripheral VCR power cable.
• Please take note that after erasing data cannot be re-
stored, therefore care must be exercised.
• 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).
INITIAL MODE
DATA CODE
CUSTOM CODE
43: A
CODE
[Data transmitting method]
Depress the “ ” ( 3 ) button
after the data code is set.
Jig RCU
Fig. 1-8-2a Jig RCU [PTU94023B]