DOWNLOAD Sharp CD-MD3000 (serv.man8) Service Manual ↓ Size: 132.73 KB | Pages: 11 in PDF or view online for FREE

Model
CD-MD3000 (serv.man8)
Pages
11
Size
132.73 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System / Test mode details
File
cd-md3000-sm8.pdf
Date

Sharp CD-MD3000 (serv.man8) Service Manual ▷ View online

CD-MD3000H/CD-MD3000W
– 36 –
[POWER]
O
O
___
Single press Turning on/off the power of the set.
When the power of the set is in the on state, it is
turned off; when it is in the off state, it is turned on.
[EQ]
O
O
B 2 h
Single press Test mode menu feed. To the servo adjustment
mode (Feed of the menu for the adjustment and
EEPROM)
[X-BASS]
O
O
B 4 h
Single press Test mode menu feed. To the recording mode
(Feed of the menu mainly for the continuous
playback and continuous recording)
[PLAY]
O
O
F 2 h
Single press Test mode menu feed. To other modes
(Feed of the menu of the INNER mode,
JUMP SELECT, etc.)
[REV PLAY]
O
O
A 8 h
Single press Menu reverse feed in each mode.
(Effective in each test mode)
[TAPE REC]
O
O
A 2 h
Single press Decision of the menu select or start of its execution.
[STOP]
O
O
A 7 h
Single press Cancellation of each test item and transition to the
menu select of one higher order
[FF/CUE]
O
O
A A h
Single press 1) Outer periphery feed of the slide motor (FWD).
Continuous     Continued outer periphery feed
press
2) Execution of JUMP
3) Address set value UP
    Others
[REW/REV]
O
O
A C h
Single press 1) Inner periphery feed of the slide motor (REV).
Continuous     Continued inner periphery feed
press
2) Execution of JUMP
3) Address set value DOWN
    Others
[JOG UP]
O
F 3 h
___
1) Forced UNLOAD feed of a disc
2) Adjustment value +1
[JOG DOWN]
O
F 4 h
___
1) Forced LOAD feed of a disc
2) Adjustment value -1
[DISP/CHARACTER] O
O
F 5 h
Single press 1) Laser switching in the EJECT mode
2) Display switching during continuous playback
    Others
[MENU]
O
O
1 F h + D 1 h
Single press To the operation mode without auto adjustment
[LOADING SW]
O
B 5 h
___
Execution of normal loading operation
[MD EJECT]
O
B 3 h
Single press Execution of normal eject operation
Operation/Input table for MD test mode 1
Button/Remoto
control input
Main unit
Function
Remoto
control
Transmission
command
 to MD
Pressing
time
1. Preparation for adjustment
 Test disc
Type
Test disc
Part No.
1
High reflection disc TGYS1 (SONY) [for Playback]
RRCDT0101AFZZ
2
Low reflection disc
Recording minidisc
  ––––––––––––
SONY  80 minutes disc is recommended.(example:PRISM 80)
3
Head Adjusting transparent
RRCDT0103AFZZ
4
Low reflection disc
Pre-adjustment disc  [TEAC Test MD]
88GMMD-318 or
88GMMD-213AS
– 37 –
CD-MD3000H/CD-MD3000W
Test mode setting method
1. "MD TEST 1" ENTER.
(State  A  is changed to state  B .)
2. Insert the playback-only disc 1 (high reflection disc) or the recordable disc 2 (low reflection disc). (State is changed to C.)
 A  tsm 1C
e
: TEST MODE
 represents version of MD microcomputer.
            STOP state
 B  EJECT
 C  AUT AJST
2. 
Test Mode
Entering the specific mode
Whenever the EQUALIZER button is pressed, the mode is changed.
Cancel of test mode
To restore the usual state once reset.
*Before pressing the MENU button, be sure to perform the AUTO preliminary adjustment and the AUTO adjustment. Make sure
that they return a "COMPLETE" result.
*When the data of EEPROM was changed or the preliminary adjustment was performed again, be sure to press the MENU button
to write data in the EEPROM.
(Data is written in the EEPROM by pressing the MENU button.)
*When changing the EEPROM settings, write them into the EEPROM and then enter the test mode again. Perform the AUTO
preliminary adjustment and the AUTO adjustment. Then, write those into the EEPROM.
• Test Mode
1. EJECT mode
• TEMP setting (of EEPROM setting)
• CONTROL setting (of EEPROM setting)
• Setting of laser power (record/playback power)
2. AUTO pre-adjustment mode
• Automatic pre-adjustment is performed.
3. AUTO adjustment mode
• Automatic adjustment is performed. (After adjustment the grating adjustment mode is set.)
• RESULT sub-mode
• Therefore do not set this mode since it is not necessary for the service.
• RESULT mode (final adjustment)
• MANUAL pre-adjustment mode
• MANUAL adjustment mode
• MANUAL AFB adjustment mode
• ERROR DATA
4. EEPROM setting mode
• Various coefficients of digital servo are changed manually.
5. TEST-PLAY mode
• Continuous playback from the specified address is performed.
• C1 error rate measurement, ADIP error rate measurement.
6. TEST-REC mode
• Continuous recording from the specified address is performed.
7. INNER mode
• The position where the INNER switch is turned on is measured.
(When the MD STOP button is pressed in the   C  state, the indication  A  is
restored. To restore   C  again, press the EQUALIZER button.)
1. EJECT mode
Step 1
Test mode EJECT state
[ _ _ E J E C T _ _ _ ]
Step 2
Press the DISP/CHARACTER button. Playback power output state
[ p p w _ _ _ _ _ _ _ ]
Step 3
Press the DISP/CHARACTER button. Rec power output state
[ r p w _ _ _ _ _ _ _ ]
Step 4
Press the DISP/CHARACTER button. Therefore do not set this mode since it is not necessary
[ x p w _ _ _ _ _ _ _ ]
for the service.
Step 5
Press the X-BASS button.
TEMP setting of EEPROM setting
[TEMP _ 
 _ 
 ]
Step 6
Press the PLAY button.
CONTROL setting of EEPROM setting
Step No.
Setting Method
Remarks
Display
MD TEST
Playback power output
[ppw]
DC0.2V
DC1.5V
To check 2
NG
Microcomputer may have recognized the PWB 
as for playback-only. Perform check 1.
Recording power output
[rpw]
Cannot enter 
[rpw] mode
DC1.8V
Below DC1.5V
Check end
NG
NG
Perform check 2.
Microcomputer may have recognized the PWB 
as for playback-only. Perform check 1.
Step
Mode
Check items
Pin 3 of IC1401
Result
Probable cause and remedy
1
2
A U T O   Y O B I
AUTO AJST
R S T   Y O B I
A U T   A F B
EEPROM_SET
MAN AFB
M N U   Y O B I
  M N U   A J S T
ERR DATA
(ERRER DATA)
(AUTO prelimirary adjustment) 
(AUTO adjustment)
(Advanced FAB adjustment)
(RESULT 
Y O B I )
RESULT  
(MANUAL pre-adjustment)
 (MANUAL adjustment) 
(MANUAL advanced FAB adjustment) 
(EEPROM setting)
CD-MD3000H/CD-MD3000W
– 38 –
3. AUTO adjustment mode
Step No.
Setting Method
Remarks
Display
Step 1
Test mode STOP state
The AUTO preliminary adjustment should have been completed.
[ t s m       
 e 
 ]
Step 2
Press once the EQUALIZER button.
AUTO adjustment menu
[ A U T O _ A J S T _ ]
Step 3
Press  once the TAPE REC button.
The slide moves to the innermost periphery, and automatic
 : _ _ _ _ _ _ ]
adjustment is started.
• In case of high reflection disc 
 changes as follows.
PEG
HAG
• In case of low reflection disc 
 changes as follows.
PEG
LAG
End of adjustment
If adjustment is OK, Step 4.
If adjustment is NG, Step 8.
Step 4
Adjustment value output
For grating adjustment
[ _ C O M P L E T E _ ]
Press the TAPE REC  button.
STEP 5
Press the MD STOP button.
STEP 2   AUTO adjustment
Step 5
Continuous playback (pit section) Confirmation of CI error
[ s
c
 ]
Continuous playback (groove section)
[ a
c
 ]
Step 6
Press the DISP/CHARACTER button. Conformation of ADIP error (High reflection disc STEP 7)
[ a
a
 ]
Press the MD STOP button.
STEP 2  AUTO adjustment menu
Step 7
Continuous playback (pit section) Confirmation of Jitter
[ s
 j 
 ]
Continuous playback (groove section)
[ a
 j 
 ]
Step 8
Adjustment value output
[  C a n ' t  _  A D J .  ]
Press the MD STOP button.
STEP 2  AUTO adjustment menu
• 
 : Adjustment name,  
 : Measurement value,  
 : Address
2. AUTO pre-adjustment mode (Low reflection disc only)
Step No.
Setting Method
Display
Step 1
Test mode STOP state
[ t s m       
 e 
 ]
Step 2
Press once the EQUALIZER button. AUTO adjustment menu
[ A U T O _ A J S T _ ]
Step 3
Press once the REV PLAY button.
AUTO pre-adjustment menu
[ _ A U T _ Y O B I _ ]
Step 4
Press  once the TAPE REC button.
• During automatic adjustment 
 changes as follows.
 : _ _ _ _ _ _ ]
HAo
→ 
• 
 
• 
 
• 
 
• 
 
• 
 
• 
 
• 
 
• 
 
 →
LAO
End of adjustment
If adjustment is OK, Step 5.
If adjustment is NG, Step 6.
Step 5
Grating adjustment,
[ _ C O M P L E T E _ ]
adjustment value output
Press once the MD STOP button.
STEP 3  AUTO pre-adjustment menu
Step 6
Adjustment value output
[  C a n ' t  _  A D J .  ]
Press once the MD STOP button.
STEP 3  AUTO pre-adjustment menu
• 
 : Adjustment name
Remarks
Confirmation of pickup laser power
It is possible to confirm in the record/playback mode with the aid of laser power meter.  However, since the laser power meter
measurement is characterized with dispersion, obtained data are used only for confirmation.
     Reference data (at room temperature 25
°
C)
     Playback: 0.72
±
0.1 mW
     Record: 5.5
±
0.5 mW
Note: Never see directly the laser light.  Otherwise your eyes are injured.
With the pre-adjustment disc (MMD-318)
If "R/P WHICH?" appears, the mechanism and the PWB can be mismatched. Check whether the combination of the playing/
recording PWB and mechanism are appropriate.
If "R/P WHICH?" still appears, eject the disc and check as follows.
Check 1: Check the pin 100 line of IC1401 for defective soldering. Check the pin 93 line of IC1401 for short-circuit and defective
           soldering (Also check the SW PWB).
Check 2: Check the pin 3 line of IC1401 for defective soldering and short-circuit with other patterns. Check that the pickup laser
is not broken.
4. AUTO AFB adjustment mode (Low reflection disc only)
Step No.
Setting Method
Remarks
Display
Step 1
Test mode STOP state
The AUTO preliminary adjustment should have been completed.
[ t s m       
 e 
 ]
Step 2
Press the EQUALIZER button two times.
AUTO FAB adjustment menu
[ _ A U T  _ A F B _ _ ]
Step 3
Press  the TAPE REC button.
The slide moves to the innermost periphery, and automatic
[F A B 
 _
 ]
"PB_DISC_ _ _ " (HIGH reflection DISC)
Step 4
Adjustment value output
STEP 2   AUTO adjustment
[
 _ 
 _ _ _]
Press the MD STOP button.
• 
 , 
 , 
 : Measurement value
– 39 –
CD-MD3000H/CD-MD3000W
5. EEPROM setting mode
A) Focus setting
Step No.
Setting Method
Display
Step 1
Test mode STOP state
[ t s m       
 e 
 ]
Step 2
Press the EQUALIZER button eight times. [ E E P R O M_ S E T ]
Step 3
Press the TAPE REC button.
[ _ _ F o c u s _ _ _ ]
Step 4
Press the TAPE REC button.
[F G _ _ _ _ _ _ 
]
Step 5
Press the EQUALIZER button.
[F F 0 _ _ _ _ _ 
]
Step 6
Press the EQUALIZER button.
[F F 1 _ _ _ _ _ 
]
Step 7
Press the EQUALIZER button.
[F F 2 _ _ _ _ _ 
]
Step 8
Press the EQUALIZER button.
[F Z H L E V _ _ 
]
Step 9
Press the EQUALIZER button.
[F O K L E V h _ 
]
Step 10
Press the EQUALIZER button.
[F O K L E V L _ 
]
Step 11
Press the EQUALIZER button.
[F O S T n _ _ _ 
]
Step 12
Press the EQUALIZER button.
[D S C J G _ _ _ 
]
• 
 : Setting value
B) Spin setting
Step 1
Test mode STOP state
[ t s m       
 e 
 ]
Step 2
Press the EQUALIZER button eight times. [ E E P R O M_ S E T ]
Step 3
Press the TAPE REC button.
[ _ _ F o c u s _ _ _ ]
Step 4
Press the EQUALIZER button.
[ _ S p i n d l e _ _ ]
Step 5
Press the TAPE REC button.
[S P G _ _ _ _ _ 
]
Step 6
Press the EQUALIZER button.
[S P G _ i n _ _ 
]
Step 7
Press the EQUALIZER button.
[S P G _ m i d _ 
]
Step 8
Press the EQUALIZER button.
[S P G _ o u t _ 
]
Step 9
Press the EQUALIZER button.
[S P 1 _ _ _ _ _ 
]
Step 10
Press the EQUALIZER button.
[S P 2 _ _ _ _ _ 
]
Step 11
Press the EQUALIZER button.
[S P 3 _ _ _ _ _ 
]
Step 12
Press the EQUALIZER button.
[S P 4 _ _ _ _ _ 
]
Step 13
Press the EQUALIZER button.
[S P 5 _ _ _ _ _ 
]
Step 14
Press the EQUALIZER button.
[S P D L  I M _ _ 
]
Step 15
Press the EQUALIZER button.
[S P K L E V m _ 
]
• 
 : Setting value
C) Tracking setting
Step No.
Setting Method
Display
Step 1
Test mode STOP state
[ t s m       
 e 
 ]
Step 2
Press the EQUALIZER button eight times. [ E E P R O M_ S E T ]
Step 3
Press the TAPE REC button.
[ _ _ F o c u s _ _ _ ]
Step 4
Press the EQUALIZER button two times.
[ _ T r a c k i n g _ ]
Step 5
Press the TAPE REC button.
[T G _ _ _ _ _ _ 
]
Step 6
Press the EQUALIZER button.
[T F 0 _ _ _ _ _ 
]
Step 7
Press the EQUALIZER button.
[T F 1 _ _ _ _ _ 
]
Step 8
Press the EQUALIZER button.
[T F 2 _ _ _ _ _ 
]
Step 9
Press the EQUALIZER button.
[F T 3 _ _ _ _ _ 
]
Step 10
Press the EQUALIZER button.
[S V C N T 4 _ _ 
]
Step 11
Press the EQUALIZER button.
[T R B L V o _ _ 
]
Step 12
Press the EQUALIZER button
[T R B L V t _ _ 
]
Step 13
Press the EQUALIZER button
[T R K L V o _ _ 
]
Step 14
Press the EQUALIZER button
[T R K L V t _ _ 
]
Step 15
Press the EQUALIZER button
[T D P W o _ _ _ 
]
Step 16
Press the EQUALIZER button
[T D P W t _ _ _ 
]
Step 17
Press the EQUALIZER button
[S L C T o _ _ _ 
]
Step 18
Press the EQUALIZER button
[S L C T t _ _ _ 
]
Step No.
Setting Method
Display
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