DOWNLOAD Sony DHC-MD7 / MDS-M9 Service Manual ↓ Size: 795.54 KB | Pages: 43 in PDF or view online for FREE

Model
DHC-MD7 MDS-M9
Pages
43
Size
795.54 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio / S/M MDS-M9 96 US,CAN,E,TOUR
File
dhc-md7-mds-m9.pdf
Date

Sony DHC-MD7 / MDS-M9 Service Manual ▷ View online

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— 10 —
— 11 —
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.
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.
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.
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 = 
 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.
IN
40h cluster
MID 300h 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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3-4-2. Operating the Continuous Recording Mode
1. Entering the continuous recording mode
1 Set the MO disc in the unit.
2 Rotate the SELECTOR knob and display “CREC MODE”.
3 Press the YES button to change the display to “CREC IN”.
4 When access completes, the display changes to “CREC (
)” and 
 
REC
 
 lights up.
Note : The “ ” displayed are arbitrary numbers.
2. Changing the parts to be recorded
1 When the YES button is pressed during continuous recording, the display changes to “CREC MID”, “CREC OUT” and  
REC 
 goes off.
When pressed another time, the parts to be recorded can be changed.
2 When access completes, the display changes to “CREC (
)” and  
REC
  lights up.
Note : The “ ” displayed are arbitrary numbers.
3. Ending the continuous recording mode
1 Press the NO button. The display changes to “CREC MODE” and  
REC
  goes off.
2 Press the EJECT button and remove the disc.
Note 1 : The recording start addresses for IN, MID, and OUT are as follows.
IN
40h cluster
MID 300h cluster
OUT 700h cluster
Note 2 : The NO button can be used to stop recording anytime.
Note 3 : During the test mode, the erasing-protection tab will not be detected. Therefore be careful not to set the continuous recording mode
when a disc not to be erased is set in the unit.
Note 4 : Do not perform continuous recording for long periods of time above 5 minutes.
Note 5 : During continuous recording, be careful not to apply vibration.
3-4-3. Non-Volatile Memory Mode
This mode reads and writes the contents of the non-volatile memory.
It is not used in servicing. If set accidentally, press the NO button immediately to exit it.
3-5. Functions of Other buttons
¢
Function
 P
p
)
0
r REC
SCROLL
PROGRAM
DISPLAY
Contents
Sets continuous playback when pressed in the STOP state. When pressed during continuous playback, the tracking servo turns ON/OFF.
Stops continuous playback and continuous recording.
The sled moves to the outer circumference only when this is pressed.
The sled moves to the inner circumference only when this is pressed.
Turns recording ON/OFF when pressed during continuous playback.
Switches between the pit and groove modes when pressed.
Switches the spindle servo mode (CLVS and A).
Switches the display when pressed.Returns to previous step. Stops operations.
Note : The erasing-protection tab is not detected during the test mode. Recording will start regardless of the position of the erasing-protection
tab when the 
r REC button is pressed.
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