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SECTION 4
TEST MODE
4-1. PRECAUTIONS FOR USE OF TEST MODE
1. The erasing-protection tab is not detected in the test mode.
Therefore, operating in the recording laser emission mode and
pressing the REC/CD-MD SYNC button, the recorded con-
tents 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 adjust-
ment mode.
But “CREC MODE”, “EF MO CHECK” and “EF MO AD-
JUST” is detect the erasing-protection tab and recording laser
power off.
2. Using MD slot is “DISC 1” only.
4-1-1.
Recording Laser Emission Mode and Operating
Button
1. Continuous recording mode (CREC MODE)
2. Traverse adjustment mode (EF MO ADJUST)
3. Laser power adjustment mode (LDPWR ADJUST)
4. Laser power check mode (LDPWR CHECK)
5. When pressing the REC/CD-MD SYNC button.
6. Traverse checking mode (EF MO CHECK)
4-2. SETTING THE TEST MODE
1. Turn on the set, and select the MD function.
2. Place the MD in “NO DISC” status (No disc present in stocker
and inside of set)
3. Press DBFB button, DIMMER button, and MD
6
button si-
multaneously to activate the Test mode.
When the Test mode is activated. “TEMP ADJUST” is dis-
played on fluorescent indicator tube.
4-3. LOADING/UNLOADING A DISC IN TEST MODE
1. In the Test mode, use the slot 1 only. (Do not load a disc in
other slots.)
2. When a disc is loaded in slot 1, in several seconds it will be
automatically pulled in.
3. To unload a disc, press MD
6
button .
4. To load a disc again, press MD
6
button .
5. In the Test mode, MD1, 2, 3 LEDs do not light regardless of
whether a disc is present or not.
4-4. RELEASING THE TEST MODE
Press the REPEAT button, and the set returns to normal mode.
(If REPEAT button is pressed with a disc loaded, the disc is au-
tomatically ejected.)
4-5. BASIC OPERATIONS OF THE TEST MODE
All operations are performed using the MULTI JOG dial,
ENTER/YES button, and EDIT/NO button. The functions of
these buttons and dial are as follows.
Table 1.
4-6. SELECTING THE TEST MODE
Twenty six test modes are selected by turn the MULTI JOG dial.
Table 2.
• For detailed description of each adjustment mode, refer to the “5.
ELECTRICAL ADJUSTMENTS” (page 24).
• If a different adjustment mode has been selected by mistake, press
the EDIT/NO button to exit from it.
*1: Scurve CHECK, VERIFY CHECK, EEP MODE, MANUAL
CMD, SVDATA READ, SLED MOVE, ACCESS MODE, 0920
CHECK, Write sure?, HEAD ADJUST, CPLAY2MODE, and
CREC2MODE are not used in servicing. If set accidentally,
press the POWER button immediately to exit it.
Display
Contents
TEMP CHECK
Temperature compensation offset check
LDPWR CHECK
Laser power check
EF MO CHECK
Traverse (E-F balance) check
EF CD CHECK
Travers (Pre mastered disk) check
FBIAS CHECK
Focus bias check
CPLAY MODE
Continuous playback mode
CREC MODE
Continuous recording mode
Scurve CHECK
S-curve check (*1)
VERIFY MODE
Non-volatile memory check (*1)
DETRK CHECK
Detrack check
TEMP ADJUST
Temperature compensation offset adjustment
LDPWR ADJUST
Laser power adjustment
EF MO ADJUST
Traverse (E-F balance) adjustment
EF CD ADJUST
Traverse (Pre mastered disk) adjustment
FBIAS ADJUST
Focus bias adjustment
EEP MODE
Non-volatile memory mode (*1)
MANUAL CMD
Manual command transfer mode (*1)
SVDATA READ
Data reading out mode (*1)
ERR DP MODE
Operation of error histories memory
SLED MOVE
Operation of sled motor (*1)
ACCESS MODE
Access check (*1)
0920 CHECK
Outermost periphery check (*1)
WRITE sure?
Non-volatile memory initialize (*1)
HEAD ADJUST
HEAD adjustment check (*1)
CPLAY2MODE
Continuous playback mode (*1)
CREC2MODE
Continuous recording mode (*1)
Button & dial
Function
MULTI JOG dial
Changes parameters and modes.
ENTER/YES button
Proceeds onto the next step.
Finalizes input.
EDIT/NO button
Returns to previous step.
Stops operations.
Summary of Contents for HCD-MD515 - Component For Dhcmd515
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