Test Mode - Sony MDS-JA333ES Service Manual

4-1. Precaution on Using the Test Mode
• Be sure to insert and eject a disc after confirming that the disc in the MDS-JA333ES has come to complete stop because the loading
related movements of the mechanism are performed without any relationship with the test mode.
Disc does not stop rotating even through the A button is pressed while disc is rotating in the modes such as continuous playback and
continuous recording. Therefore, the disc is ejected while it is rotating.
Be sure to press the MENU/NO button, then press the A button after a disc has completely stopped of its rotation.
4-1-1. Modes in Which Recording Laser Emits the Light and the Button Operations
• Continuos recording mode (CREC 1MODE)
• Laser power check mode (LDPWR CHECK)
• Laser power adjustment mode (LDPWR ADJUS)
• IOP check (IOP compare) (Not used with the MDM-6J and MBU-5J)
• IOP value non-volatile writing (IOP NV Save) (Not used with the MDM-6J and MBU-5J)
• Traverse (MO) check (EF MO CHECK)
• Traverse (MO) check (EF MO ADJUS)
When the zREC button is pressed
•
4-2. How to Enter the Test Mode
There are two methods to enter the test mode as follows.
Method 1: Connect the power plug to the outlet while pressing the lAMSL knob and x button at the same time, and remove the
lAMSL knob and x button at the same time.
When the unit enters the test mode, "[Check]" appears. The three groups can be switched, ......↔ [Check] ↔ [Service] ↔
[Develop] ↔..... , by rotating the lAMSL knob.
The Develop group is not used for service. If you enter the group mistakenly, immediately press the MENU/NO button and exit
the mode.
Method 2: Connect the power plug to the outlet while pressing the lAMSL knob, and remove the lAMSL knob.
When the unit enters the test mode, "TEMP CHECK" (C12) appears. When the test mode is entered using this method, the
contents of check group at method 1 can be performed.
4-3. Exiting the Test Mode
Press the REPEAT button. The MDS-JA333ES enters the standby status and exits the test mode.
4-4. Basic Operation of the Test Mode
All operations are performed using the lAMSL knob, YES button, and MENU/NO button.
The functions of these button are as follows.
Function name
MENU/NO button
YES button
lAMSL knob (right/left) Selection
lAMSL knob (pushed)
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SECTION 4

TEST MODE

Function
Chancels or moves to the upper hierarchy
Decision
Decides the sub-menu