Test Mode - Sony MDS-JB940 Service Manual

4-1. PRECAUTIONS FOR USE OF TEST MODE
• As loading related operations will be performed regardless of the test mode operations being performed, be sure to check that the disc is
stopped before setting and removing it.
Even if the EJECT A button is pressed while the disc is rotating during continuous playback, continuous recording, etc., the disc will not
stop rotating.
Therefore, it will be ejected while rotating.
Be sure to press the EJECT A button after pressing the MENU/NO button and the rotation of disc is stopped.
4-1-1. Recording laser emission mode
• Continuous recording mode (CREC 1 MODE)
• Laser power check mode (LDPWR CHECK)
• Laser power adjustment mode (LDPWR ADJUS)
• IOP check (Iop compare)
• IOP value non-volatile writing (Iop NV Save)
• Traverse (MO) check (EF MO CHECK)
• Traverse (MO) adjustment (EF MO ADJUS)
• When pressing the REC z button.
4-2. SETTING THE TEST MODE
The following are two methods of entering the test mode.
Procedure 1: While pressing the l AMS L knob and x button, connect the power plug to an outlet, and release the l AMS L
knob and x button.
When the test mode is set, "[Check]" will be displayed. Turn the l AMS L knob switches between the following three
groups; ···y [Check] y [Service] y [Develop] y ···.
Procedure 2: While pressing the l AMS L knob, connect the power plug to the outlet and release the l AMS L knob.
When the test mode is set, "TEMP CHECK" will be displayed. By setting the test mode using this method, only the "Check"
group of method 1 can be executed.
4-3. RELEASING THE TEST MODE
Press the REPEAT button. The test mode is released and the unit sets into the STANDBY state.
4-4. BASIC OPERATIONS OF THE TEST MODE
All operations are performed using the l AMS L knob, YES button, and MENU/NO button.
The functions of these buttons are as follows.
Function name
MENU/NO button
YES button
l AMS L knob (right and left)
l AMS L knob (push)
SECTION 4

TEST MODE

Function
Cancels or moves to the next level up in the hierarchy.
Establishes.
Selects.
Establishes the sub menu.
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