Sony HCD-MJ1, Service Manual

Page: 11 / 68

– 11 –
5-1. How to enter the Test Mode
With the power switched off and the power plug plugged into a socket, press the BASS/TREBLE button, CLOCK button, and MD button more
than one at a time in order.
5-2. How to Release the Test Mode
Press the REPEAT button.
5-3. Basic Operations of the Test Mode
All operations are performed using the JOG dial (Rotary Encoder) , YES (ENTR/TES)button, and NO (EDIT/ON)button.
The functions of these keys are as follows.
Function Contents
JOG dial Changes parameters and modes.
YES button Proceeds onto the next setp. inalizes input
NO button Returns to previous step. Stops operations.
5-4. Selecting the Test Mode
Eight test modes are selected by turning the AMS knob.
Display Contents
TEMP ADJUST Temperature compnsation offset adjustment
LDPWR ADJUST Laser power adjustment
EFBAL ADJUST Traverse adjustment
FBIAS ADJUST Focus bias adjustment
FBIAS CHECK Focus bias check
CPLAY MODE Continuous playback mode
CREC MODE Continuous recording mode
EEP MODE Non-volatile memory mode*
For detailed description of each adjustment mode, refer to 6. Electrical Adjustments.
If a different adjustment mode has been selected by mistake, press the NO button to exit from it.
* The EEP MODE is not used in servicing. If set accidentally, press the NO button immediately to exit it.
5-5-1. Operating the Continuous Playback Mode
1. Entering the continuous playback mode
1
Set the disc in the unit (either MO or CD).
2
Rotate the JOG dial and display “CPLAY MODE”.
3
Press the YES button to change the display “CPLAY IN”.
4
When access completes, the display changes to “C1 = AD = ”
Note :
The “ ” displayed are arbitrary numbers.
2. Changing the parts to be played back
1
Press the YES button during continuous playback to change the display to “CPLAY MID”, “CPLAY OUT”.
When pressed another time, the parts to be playedback can be changed.
2
When access completes, the display changes to “C1 = AD = ”
Note :
The “ ” displayed are arbitrary numbers.
3. Ending the continuous playback mode
1
Press the No button. The display will change to “CPLAY MODE”.
2
Press the MD
§
button and remove the disc.
Note 1 : The playback start addresses for IN, MID, and OUT are as follows.
Press the DISPIAY button twice to display thae address. Pressing the DISPIAY buttan again returns the display to
“C1 = AD = ”
IN 40h cluster
MID 300h cluster
OUT 700h cluster
SECTION 5
TEST MODE