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WIRING-4 (MECHANISM)
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TEST MODE
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1. CD Test Mode
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1-1. How to Start Up the CD Test Mode
While pressing the "CD OPEN/CLOSE" button, connect the AC plug to the power outlet.
When the CD test mode is started up, When the CD test mode starts up, all displays turn on.
Note: When the PANEL, TOP has been removed for each CHAS, GEAR, be sure to short pin-4 and pin-5 of the connector CN3 on
the CD board in order to recognize that the CD lid is closed.
1-2. Releasing the CD Test Mode
Remove the shorting between pin-4 and pin-5 of the connector CN3 on the CD board to return to the original setup.
Then press the POWER button or the FUNCTION button, or remove the AC plug from the power outlet to release the CD test
mode.
1-3. Function Description of the Test Mode
MODE
Operation
Start mode
Starting up the
test mode
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Search mode
2
Play mode
;
Traverse mode
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6
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Sled mode
5
Note: If the focus search operation is continued for 10 minutes or longer, heating of the driver IC is accumulated to trigger the
protection circuit that will stop operation of the CD system. .Turn off the main power and re-start operation about 10 minutes
later.
2. MD Test Mode
Note: Remote control unit is used to activate most of the MD TEST mode operations in the XR-MD200. (Only the two buttons are
located in the XR-MD200 that cannot be found in the remote control unit. These two buttons are the "MD EJECT" button that
is used to initiate the MD test mode and the 0 button that is used to enter "REC Analog (digital)". Therefore, the MD test
mode is described as follows on the premise of using a remote control unit.
2-1. How to Start Up the MD Test Mode
While pressing the "MD EJECT" button, connect the AC plug to the power outlet.
About three seconds later after the MD test mode has started up, the following message appears and the MD test mode becomes
operable.
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Indication on display
Function
CD TEST
CD
Continuous focus searching.
Check APC circuit.
The pickup lens repeats the full-
Laser current measurement.
swing up-down motion * Note
Focus error waveform check.
Track No. and
Normal playback.
Focus servo.
playing time are
When the TOC reading is not
Tracking servo.
displayed
possible, the same movement as
CLV servo.
in the search mode.
Sled servo.
Track No. and
Playback PAUSE mode
Tracking servo OFF.
playing time flash
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5
1
5
0
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4
CD TEST
The pickup moves to the
Sled servo.
innermost track
Check operation of the
The pickup moves to the
mechanism.
outermost track
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