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JVC ux-a70md Service Manual page 5

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For investigating the mode in which an error
occurred during the disk adjustment, freeze the
set in the mode by pressing the proper key
(refer to the table on the right) on the remote
controller before cancelling the TEST MODE 1.
(6) Setup of the TEST MODE 2
While pressing both the POWER key and
FORWARD STOP key on the main unit,
turn on the primary power supply.
FL indication
TEST MODE 2
While pressing the STOP key on the main
unit, press the FM/AM key on the main
unit double. The TEST MODE 2 is set up.
FL indication
TEST MODE 2
Setup is complete.
(7) Indication of variation in the pickup adjustment value
Set up the TEST MODE 2.
Press the MD OPEN/CLOSE key
and insert the MD test disk.
Press the "6" key on the
remote controller.
FL indication*
XXXXX - XXXX
* Each time the
ASG
"6" key on the
TRG
remote
TRB
controller is
FOB
pressed, the
indication
FGR
changes from
FEXP
ASG to TRG,
FGC
from TRG to
FG
TRB, and so
TGR
on as shown
in the figure.
TEXP
TGC
TG
SLEEP key (Remote controller)
"6" key (Remote controller)
"7" key (Remote controller)
"8" key (Remote controller)
"9" key (Remote controller)
STOP key (Remote controller)
EJECT key (Main unit)
(8) Indication of the C1 error
Press the "8" key on the remote controller. Counting of
number of C1 errors starts and it continues until it
counts up the maximum number of C1 errors with
indication (maximum number of error indication is 432).
-1
-2
:
-128
127
126
:
1
0
Key to press
Set up the TEST MODE 2.
Press the MD OPEN/CLOSE key
and insert the MD test disk.
FL indication*
X X
Y Y
(9) Cancel of the TEST MODE
(The cancel operation is common to the TEST
MODE 1 and 2.)
Cut off the primary power supply to cancel the
TEST MODE.
UX-A70MD
Mode
FOCUS SEARCH
PIT ROUGH SERVO
GROOVE ROUGH SERVO
TRACKING ON
TRACKING OFF
STOP
EJECT
200 Hz or less
Z Z
1-5

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