Test Mode - Sony MDS-JE700 - Mini Disc Player Service Manual

4-1. PRECAUTIONS FOR USE OF TEST MODE
1 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 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 button after pressing the NO button and the rotation of disc is stopped.
2 The erasing-protection tab is not detected in the test mode. Therefore, operating in the recording laser emission mode and pressing the
rREC button, the recorded contents will be erased regardless of the position of the tab. When using a disc that is not to be erased in the
test mode, be careful not to enter the continuous recording mode and traverse adjustment mode.
4-1-1. Recording laser emission mode and operating buttons
1. Continuous recording mode (CREC MODE)
2. Traverse adjustment mode (EFBAL ADJUST)
3. Laser power adjustment mode (LDPWR ADJUST)
4. Laser power check mode (LDPWR CHECK)
5. When pressing the rREC button.
4-2. SETTING THE TEST MODE
While pressing the AMS knob, insert the power plug into the power supply inlet, and release the AMS knob.
4-3. EXITING THE TEST MODE
When the REPEAT button is pressed, it becomes in the STANDBY mode. Or unplug the power plug from an outlet.
4-4. BASIC OPERATIONS OF THE TEST MODE
All operations are performed using the AMS knob, YES button, and NO button.
The functions of these buttons are as follows.
Function name
AMS knob Changes parameters and modes
YES button Proceeds onto the next step. Finalizes input.
NO button Returns to previous step. Stops operations.
4-5. SELECTING THE TEST MODE
Thirteen test modes are selected by turning the AMS knob.
Display
TEMP ADJUST Temperature compensation offset adjustment
LDPWR ADJUST
Laser power adjustment
LDPWR CHECK Laser power check
EFBAL ADJUST
Traverse adjustment
FBIAS ADJUST Focus bias adjustment
FBIAS CHECK
Focus bias check
CPLAY MODE Continuous playback mode
CREC MODE Continuous recording mode
DETRK CHECK
Detrack check
S curve CHECK S curve check
EEP MODE
Non-volatile memory mode
MANUAL CMD Manual command transfer mode
SVDATA READ Data reading out mode
For detailed description of each adjustment mode, refer to "5. Electrical Adjustments".
If a different adjustment mode has been selected by mistake, press the NO button to exit from this mode.
* The EEP MODE, S curve CHECK, MANUAL CMD and SVDATA READ are not used in servicing. If set accidentally, press the NO button
immediately to exit this mode.
SECTION 4

TEST MODE

Function
Contents
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