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TEST MODE-1/6
Introduction
� The test mode consists of the two modes. One is the AUTO Adj. Mode and the other is the MANUAL Mode. When the machine enters the AUTO Adj. Mode, all adjustment items of both the CD and MO are performed one after another automatically. In the AUTO Adj. Mode, the CD and MO disks are identified and then each adjustment is performed in the specified order If any error's detected, location of the cause of the error is displayed. In the MANUAL Mode, each adjustment can be performed manually. The test mode is controlled by operating the keys of the main unit. All keys that are referred to in this section indicate the keys of the main unit unless otherwise specified. [Display on LCD screen], means the display on the LCD screen of remote control. Note that the same display appears on the LCD screen of the main unit.
Operations in the Test Mode
� � � When the machine enters the test mode, the machine enters further the display check mode of the test mode. You can move to the other mode from the display check mode. When the machine enters the test mode, the LCD of the remote control repeats showing the following displays. Display on remote control LCD
All elements turn on. All elements turn off. Microprocessor version display
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How to Enter the Test Mode
You can enter the test mode by either one of the following two methods. 1 Turn off the power. Short-circuit the SL801 (TEST) solder bridge (connecting IC801 pin-3 to GND) on the MAIN C.B. Then turn on the power (See the picture below.) 2 Turn on the power and enter the normal mode. Set the �HOLD� switch to the ON position. While pressing the �VOL �� key, press the following keys in the order shown below. �§� � �§� � ��� � ��� � �§� � ��� � �§� � ��� � �;� � �;� � While the �;� key is kept pressed, the display at the moment is also kept appearing on the LCD that enables you to check the display. Note: The sets that use the microprocessor version 1.000 are adjusted of their setup data by the MANUAL mode in the factory before shipment. If the NV reset is executed in these sets, the setup data will be cleared. If the NV reset is executed in the sets of version 1.000, change the adjustment value in accordance with the adjustment value change procedure immediately after the NV reset is executed. (Refer to ELECTRICAL ADJUSTMENT on page 32.)
�MAIN C.B (Pattern side)�
How to Exit the Test Mode
When the machine has entered the test mode by using the method 1 of the How to Enter the Test Mode : Turn off the power and open the solder bridge of SL801 (TEST) MAIN C.B. Note: Remove the soldering completely with care. If any solder remains, it may cause short-circuit with the chassis. When the machine has entered the test mode by using the method 2 of the How to Enter the Test Mode : Turn off the power. Note: If all of the electrical adjustment items (CD AUTO Adj/MO AUTO Adj. ) are not finished yet, the machine starts up in the test mode when the power is turned on next time. (The machine will not start up in the normal mode.)
