DOWNLOAD Sony HCD-MJ1 / HCD-MJ1A Service Manual ↓ Size: 9.28 MB | Pages: 67 in PDF or view online for FREE

Model
HCD-MJ1 HCD-MJ1A
Pages
67
Size
9.28 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
hcd-mj1-hcd-mj1a.pdf
Date

Sony HCD-MJ1 / HCD-MJ1A Service Manual ▷ View online

– 9 –
3-3. CD MECHANISM, MD MECHANISM AND DIGITAL BOARD REMOVAL
1
 +BVTP 3 x 8
3
 +BVTT 3 x 6
CHASSIS (M)
4
 +BVTT3 x 10
CD MECHANISM SECTION
CASE (BOTTOM) SECTION
!™
5
 +BVTT3 x 6
1
 +BVTP 3 x 8
 +BVTT3 x 10
MD MECHANISM SECTION
SHELDE
 +BVTP 3 x 8
7
 +BVTP 3 x 8
9
 +BVTT 3 x 10
SHELDE (T)
DIGITAL BOARD
2
 +BVTT3 x 10
– 10 –
DOOR
CAM
1
 TWEEZERS
4
2
3
SECTION 4
DISC TABLE GETTING OUT PROCEDURE ON THE POWER SUPPLY IS OFF
DISC TABLE
– 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
– 12 –
5-5-2. Operating the Continuous Recording Mode
1. Entering the continuous recording mode
1 Set the MO disc in the unit.
2 Rotate the JOG dial 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 bottan. The display change to CREC MODE” and 
REC
 goes off.
2 Press the  MD § 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 buttton 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 be erased is set in the unit.
Note 4 :
Do not perform continuous recording for long periods of time above 5minutes.
Note 5 :
During continuous recording, be careful not to apply vibration.
5-5-3. Non-Volatile Memory Mode (EEP MODE)
This mode reads and writes the contents of the nonü]volatile memory.
It is not used in servicing. If set accidentally, press the No button immediately to exit it.
5-6. Functions of Other buttons
Function
Contents
^
Sets continuous playback when pressed in the STOP state.
When pressed during continuouse playback,the tracking servo turns ON/OFF.
p
Stops continuouse playback and continuouse recording.
)
The sled moves to the outer circumference only when this is pressed.
0
The sled moves to the inner circumference only when this is pressed.
r
Turns recording ON/OFF when presed during continuoos playback.
SCROOLL
Switches butween the pit and groove modes when pressed.
DISPLAY
Switches the display whin 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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