Read Sony DHC-MD7 / MDS-M9 Service Manual online
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SECTION 3
TEST MODE
3-1. Setting the Test Mode
Press the STOP (
p) button, EDIT/NO (NO) button and REPEAT button at the same time when the POWER of set is turned OFF. (Be sure to
release the Three buttons at the same time.)
3-2. Exiting the Test Mode
1. Press the REPEAT button.
2. In case a disc is unloaded, the display “STANDBY” will go on and off.
2. In case a disc is unloaded, the display “STANDBY” will go on and off.
In case a disc is loaded, the “STANDBY” is displayed once and the disc is ejected.
3. Unplug the power plug from an outlet.
3-3. Basic Operations of the Test Mode
All operations are performed using the SELECTOR knob, ENTER/YES (YES) button, and EDIT/NO (NO) button.
The functions of these buttons are as follows.
The functions of these buttons are as follows.
Function
SELECTOR knob
YES button
NO button
Contents
Changes parameters and modes
Proceeds onto the next step. Finalizes input.
Returns to previous step. Stops operations.
3-4. Selecting the Test Mode
Eight test modes are selected by turning the SELECTOR knob.
Display
TEMP ADJUST
LDPWR ADJUST
EFBAL ADJUST
FBIAS ADJUST
FBIAS CHECK
CPLAY MODE
CREC MODE
EEP MODE
For detailed description of each adjustment mode, refer to 4. Electrical Adjustments.
If a different adjustment mode has been selected by mistake, press the NO button to exit from it.
If a different adjustment mode has been selected by mistake, press the NO button to exit from it.
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The EEP MODE is not used in servicing. If set accidentally, press the NO button immediately to exit it.
3-4-1. 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 SELECTOR knob and display “CPLAY MODE”.
3 Press the YES button to change the display to “CPLAY IN”.
4 When access completes, the display changes to “C1 =
2 Rotate the SELECTOR knob and display “CPLAY MODE”.
3 Press the YES button to change the display to “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 played back 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 EJECT button and remove the disc.
Note 1 : The playback start addresses for IN, MID, and OUT are as follows.
2 Press the EJECT button and remove the disc.
Note 1 : The playback start addresses for IN, MID, and OUT are as follows.
IN
40h cluster
MID 300h cluster
OUT 700h cluster
OUT 700h cluster
Contents
Temperature compensation offset adjustment
Laser power adjustment
Traverse adjustment
Focus bias adjustment
Focus bias check
Continuous playback mode
Continuous recording mode
Non-volatile memory mode
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