Sony MDS-MX101 User manual
MDS-MX101
SERVICE MANUAL
MINI DISC DECK
MICROFILM
AEP Model
UK Model
E Model
Tourist Model
MDS-MX101 is the optional mini disc
deck that can be used only with section
CMT-101.
U.S and foreign patents licensed from Dolby Labo-
ratories Licensing Corporation.
SPECIFICATIONS
Model Name Using Similar Mechanism MDS-S38
MD Mechanism Type
MDM-3B
Optical Pick-up Name KMS-260A/J1N
System MiniDisc digital audio system
Disc MiniDisc
Laser Semicondu2ctor laser (λ = 780nm)
Laser output power Less than 44.6 µW*
*This output is the value measured at a distance of
200 mm from the objective lens surface on the
optical pick-up block with 7 mm aperture.
Laser diodo properties Material: GaAIAs
Revolutions (CLV) Approx. 400 rpm to 900 rpm
Error correction Advance Cross
Interleave Reed Solomon Code (ACIRC)
Sampling frequency 44.1 kHz
Modulation system EFM (Eight-to-Fourteen Modulation)
Number of channels 2 stereo channels
Frequency response 5 to 20,000 Hz
Signal-to-noise ratio More than 92 dB (during playback)
Wow and flutter Below measurable limit
DIGITAL IN (MD Square optical connector jack, Optical wave length
OPTICAL IN) input/ 660 nm
DIGITAL OUT (MD
OPTICAL OUT) output
Dimeansions Approx. 142 ×125 ×235 mm (w/h/d) incl.
projecting parts and controls
Mass Approx. 2 kg
Supplied accessory Digital optical cable (1)
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
— 2 —
TABLE OF CONTENTS
1. SERVICING NOTES
1-1. Check Mode of Fluorescent Indicator Tube,
Buttons, and LED’s ........................................................ 3
1-3. Extension Cable.............................................................. 3
2. GENERAL .................................................................. 4
3. DISASSEMBLY
3-1. Cover and Front Panel .................................................... 5
3-2. Mechanism Deck ............................................................ 5
3-3. Digital Board .................................................................. 5
3-4. OPJ Board, Power Board................................................ 6
3-5. Bracket (T), (L) and (R) ................................................. 6
3-6. BD Board........................................................................ 7
3-7. Sub Chassis..................................................................... 7
3-8. Shutter Assembly............................................................ 8
3-9. Over Write Head............................................................. 8
3-10. Slider Complete Assembly ............................................. 9
4. TEST MODE........................................................ 10
5. ELECTRICAL ADJUSTMENTS ......................... 13
6. DIAGRAMS
6-1. Circuit Boards Location ................................................. 18
6-2. Block Diagram ............................................................... 19
6-3. Printed Wiring Boards
– MD Mechanism Deck Section – ................................. 22
6-4. Schematic Diagram
– MD Mechanism Deck Section – ................................. 25
6-5. Schematic Diagram – Digital Section – ......................... 31
6-6. Printed Wiring Boards – Digital Section – ..................... 35
6-7. Schematic Diagram – Display Section – ........................ 38
6-8. Printed Wiring Boards – Display Section –.................... 41
6-9. Printed Wiring Boards – Power Section –...................... 43
6-10. Schematic Diagram – Power Section – .......................... 45
6-11. IC Block Diagrams......................................................... 47
6-12. IC Pin Functions ............................................................. 49
7. EXPLODEDVIEWS ................................................ 56
8. ELECTRICAL PARTS LIST ................................. 60
CAUTION
Use of controls or adjustments or performance of
procedures other than those specified herein may
result in hazardous radiation exposure.
This appliance is classified as a CLASS 1 LASER product.
The CLASS 1 LASER PRODUCT MARKING is located on
the rear exterior.
Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.
The following caution label is located inside the unit.
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
break-down because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
Notes on chip component replacement
•Never reuse a disconnected chip component.
•Noticethatthe minus sideofa tantalum capacitormaybedamaged
by heat.
Flexible Circuit Board Repairing
•Keep the temperature of the soldering iron around 270 ˚C during
repairing.
•Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
•Be careful not to apply force on the conductor when soldering or
unsoldering.
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type recommended by
the manufacturer.
Discard used batteries according to the manufacturer’s instructions.
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
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— 3 —
SECTION 1
SERVICING NOTES
1-1. CHECK MODE OF FLUORESCENT INDICATOR
TUBE, BUTTONS, AND LEDS
Setting the Check Mode:
This mode is activated by inserting the AC power cord of the PFJ-
1 power supply jig (or HCD-101) intoAC wall outlet while pressing
the REC button and the CHARACTER button. When this mode
started, the fluorescent indicator tube and LEDs are all turned on.
1-1-1. Button Check Mode (Key Check)
When the respective buttons (12 buttons are used in total)
are pressed while all tube and LEDs are turned on, the
display area which corresponds to the pressed button, is
turnedoff. This modeendsby pressing theCDSYNCbutton
at last.
1-1-2. Fluorescent Indicator Tube Check Mode (Segment
Check)
When the button check mode ends, [Segment Check]
appearsandtherespective dots of the12-digit,5 x 7 segment
fluorescent tube are lit every other dot. This mode ends by
pressing the CD SYNC button at last.
1-1-3. FluorescentIndicatorTubeCheckMode (Scroll Check)
When the segment check ends, [Scroll Check] appears.
When the SCROLL button is pressed, the displayed letter
scrolls to the left one letter after another. When all letters
are scrolled, [end] appears. Press YES button to return to
the normal operating mode.
1-2. EXTENSION CABLE
The two types of extension cable are available during repair of this
set. The extension cable (part code no. J-2501-086-A) is available
to connect CN103 of the BD board and CN200 of the DIGITAL
board. The extensioncable (part codeno.J-2501-103-A)is available
to connect CN102 of the BD board and CN201 of the DIGITAL
board.
CN102
CN103
CN200 CN201
Extension Cable
(J-2501-086-A) Extension Cable
(J-2501-103-A)
— BD board (Conductor side) —
— DIGITAL board (Component side) —
SERVICENG NOTE
• Supplying power during servicing
This equipment cannot operate without using a separate power supply. Connect the machine to the HCD-101. To apply power set the
SYSTEM POWER switch of HCD-101.
When other units are not available use the PFJ-1 power supply jig.
When using the PFJ-1, press the POWER switch of the conversion board to turn on the power.
[Connection Diagram]
PFJ-1
(Power Supply jig)
POWER SW Connector Cable 17P
(Supplied with set)
FH-E939, 838, 737,
MHC-6600, 5600,
CDP/TC
Conversion Board
(J-2501-144-A)
*
when checking the recording
function of MDS-MX101, select
any function other than MD using
the Function key of the conversion
board before check.
SYSTEM CONTROL
Set
Power Function
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TEL 13942296513 QQ 376315150 892498299
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— 4 —
SECTION 2
GENERAL This section is extracted
from instruction manual.
1Display window
2MD slot
36EJECT button
4rREC button
5CD SYNC button
6=0(finding a point in a track/
fast backward) button
)+(finding a point in a track/
fast forward) button
7EDIT/NO button
8YES button
9SCROLL button, DISPLAY button/
?CURSOR/button
0CHARACTER button
!¡ p(stop) button
!™ ^(play/pause) button
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
— 5 —
SECTION 3
DISASSEMBLY
Note : Follow the disassembly procedure in the numerical order given.
3-1. COVER AND FRONT PANEL
3-3. DIGITAL BOARD
3-2. MECHANISM DECK
1
Four Screws
(BVTT 3x8)
4
Mechanism deck
2
Flat type wire (29Core)
(CN102)
3
Flat type wire (19Core
)
(CN103)
5
Two screws
(BVTT 3x8)
3
Flat type wire (23Core)
(CN203)
2
Flat type wire (29Core)
(CN201)
1
Flat type wire (19Core)
(CN200)
6
Digital board
4
Flat type wire (13Core)
(CN204)
1
Two screws (Case)
1
Two screws (Case
)
4
Flac type wire (16Core)
(CN202)
5
Front Panel
3
Two screws (BVTP 3x8)
2
Cover
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TEL 13942296513 QQ 376315150 892498299
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— 6 —
3-5. BRACKET (T), (L) AND (R)
3-4. OPJ BOARD, POWER BOARD
2
Bracket (T)
1
Four screws
(BVTT 2x3)
4
Screw (BVTT 2x3)
3
Screw (BVTT 2x3
)
5
Bracket (joint)
7
Bracket (L)
9
Bracket (R)
8
Two screws
(BVTT 2x3)
6
Two screws
(BVTT 2x3)
8
Power board
5
Two screws
(BVTT 3x8)
1
Two screws
(BVTP 3x8)
5
Two screws
(BVTT 3x8)
6
Flat type wire
(23 Core)
7
Flat type wire
(13 Core)
1
Two screws
(BVTP 3x8)
1
Three screws
(BVTP 3x8)
4
Opj board
3
Cord (with Connector)
(CN102)
2
Back Panel
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
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— 7 —
3-6. BD BOARD
4
OP relay fiexible board
(CN101)
5
BD board
3
Screw (BVTT 2x4)
1
Flexible board
(Over write head)
2
Flat type wire (15 Core)
(CN106)
3-7. SUB CHASSIS
1
Two step screws
2
Two step screws
3
Two insulatores
4
Two insulatores
5
Sub chassis
Part A
Part A
Part A
NG
OK
Take care so that hte part A
may be right position when installing.
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
— 8 —
3-8. SHUTTER ASSEMBLY
1
Stopper washer
2
Shaft (shutter)
Shaft (shutter) A
Shaft (lid) B
3
Shutter assembly
Shutter assembly
Hole B
Hole A
When installing, install the shaft (shutter)
into the hole A as shown in the figure
before installing the shaft (lid) into the hole B.
3-9. OVERWRITE HEAD
1
Precision screw (P1.7x6
)
2
Over write head
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
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— 9 —
3-10 . SLIDER COMPLETE ASSEMBLY
• Note for Installation of Slider Complete Assembly
45
°
OK
NG
3
Set the shaft of Gear (LA) to be at the
position in the figure.
2
Retainer (Gear)
1
Screw
(M1.7x2)
4
Remove the slider complete
assembly in the direction of
arrow with putting out of
two claws.
Claw
Claw
Slider assembly
Install the part A of leever (head up)
to pass over the slider complete assembly.
Part A
Take care not to damage
the detective switch.
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
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– 10 –
SECTION 4
TEST MODE
4-1. PRECAUTIONS FOR USE OFTEST MODE
1. As loading related operations will be performed regardless of
the test mode operations being performed, be sure to check
that the disc is stopped before setting and removing it. Even if
the 6button is pressed while the disc is rotating during con-
tinuous playback, continuous recording, etc., the disc will not
stop rotating. Therefore, it will be ejected while rotating. Be
sure to press the 6button after pressing the EDIT/NO but-
ton and the rotation of disc is stopped.
2. The erasing-protection tab is not detected in the test mode.
Therefore, operating in the recording laser emission mode and
pressing the rREC button, the recorded contents will be
erased regardless of the position of the tab. When using a disc
that is not to be erased in the test mode, be careful not to enter
the continuous recording mode and traverse adjustment mode.
4-1-1. Recording Laser Emission Mode and Operating
Button
1. Continuous recording mode (CREC MODE)
2. Traverse adjustment mode (EFBAL ADJUST)
3. Laser power adjustment mode (LDPWR ADJUST)
4. Laser power check mode (LDPWR CHECK)
5. When pressing the rREC button.
4-2. SETTINGTHETEST MODE
With the AC power cord of the PFJ-1 power supply jig (or
HCD-101) removed from AC outlet, press the )+button
and CHARACTER button simultaneously, and connect the AC
power cord to the AC wall outlet. The test mode is activated.
4-3. RELEASINGTHETEST MODE
Press the 6button, and the power is turned OFF (standby status)
and the set becomes ready for normal operation.
4-4. BASIC OPERATIONS OFTHETEST MODE
All operations are performed using the =0 button,
)+button, YES button, and EDIT/NO button. The
functions of these buttons are as follows.
Table 4-1.
4-5. SELECTINGTHETEST MODE
Thirteen test modes are selected by pressing the =0but-
ton, and )+button.
Table 4-2.
•For detailed description of each adjustment mode, refer to the
“5. ELECTRICALADJUSTMENTS”.
•If a different adjustment mode has been selected by mistake,
press the EDIT/NO button to exit from it.
*1: The Scurve CHECK, EEP MODE, MANUAL CMD and
SVDATA READ are not used in servicing. If set accidentally,
press the EDIT/NO button immediately to exit it.
Display Contents
TEMP ADJUST Temperature compensation offset
adjustment
LDPWR ADJUST Laser power adjustment
LDPWR CHECK Laser power check
EFBAL ADJUST Traverse (E-F balance) adjustment
FBIAS ADJUST Focus bias adjustment
FBIAS CHECK Focus bias check
CPLAY MODE Continuous playback mode
CREC MODE Continuous recording mode
DETRK CHECK Detrack check
Scurve CHECK S curve check (*1)
EEP MODE Non-volatile memory mode (*1)
MANUAL CMD Manual command transfer mode (*1)
SVDATA READ Data reading out mode (*1)
Button
=0button
)+button
YES button
EDIT/NO button
CD SYNC button
Function
Changes parameters and modes.
Proceeds onto the next steps.
Finalizes input.
Returns to previous step.
Stops operations
Confirms the entry.
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
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– 11 –
4-6. OPERATING THE CONTINUOUS PLAYBACK
MODE
4-6-1. Entering the Continuous Playback Mode
1. Set the MO or CD disc in the unit. (Whichever recordable discs
or discs for playback only are available.)
2. Press the =0button or )+button and display
“CPLAY MODE”.
3. Press the YES button to change the display to “CPLAY MID”.
4. When access completes, the display changes to
“C1= AD= ”.
Note:The numbers “ ” displayed show you error rates andADER.
4-6-2. Changing the Parts to be Played-back
1. Press the YES button during continuous playback to change
the display as below.
2. When access completes, the display changes to
“C1= AD= ”.
Note:The numbers “ ” displayed show you error rates andADER.
4-6-3. Exitting the Continuous Playback Mode
1. Press the EDIT/NO button. The display will change to
“CPLAY MODE”.
2. Press the 6button and remove the disc.
Notes:
1. The playback start address for IN, MID, and OUT are as fol-
lows.
In case you want to display the address of the playback posi-
tion on the display, press the DISPLAY button and display
“CPLAY ( )”.
IN : 40h cluster
MID : 300h cluster
OUT: 700h cluster
2. The EDIT/NO button can be used to stop playing anytime.
4-7. OPERATINGTHE CONTINUOUS RECORDING
MODE
4-7-1. Entering the Continuous Recording Mode
1. Set the MO disc in the unit.
2. Press the =0button or )+button and display
“CREC MODE”.
3. Press the YES button to change the display to “CREC MID”.
4. When access completes, the display changes to “CREC ( )”
and, SHUFFLE and REPEAT Turn on.
Note:The numbers “ ” displayed shows you the recording posi-
tion address.
4-7-2. Changing the Parts to be Recorded
1. When the YES button is pressed access is completed, the
display changes as below. (See Note 6.)
2. When access completes, the display changes to “CREC ( )”
and SHUFFLE and REPEAT lightup.
Note:The numbers “ ” displayed shows you the recording posi-
tion address.
4-7-3. Ending the Continuous Recording Mode
1. Press the EDIT/NO button. The display will change to “CREC
MODE” and PRESET goes off.
2. Press the 6button and remove the disc.
( MONO turns on once and turns off immedia Tely.)
Notes:
1. The recording start address for IN, MID, and OUT are as fol-
lows.
IN : 40h cluster
MID : 300h cluster
OUT : 700h cluster
2. The EDIT/NO button can be used to stop recording anytime.
3. During the test mode, the erasing-protection tab will not be
detected. Therefore be careful not to set the continuous re-
cording mode when a disc not to be erased is set in the unit.
4. Do not perform continuous recording for long periods of time
above 5 minutes.
5. During continuous recording, be careful not to apply vibra-
tion.
6. After access is completed, the recorded portions cannot be
moved any more.
CPLAY MID CPLAY OUT CPLAY IN CREC MID CREC OUT CREC IN
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TEL 13942296513 QQ 376315150 892498299
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– 12 –
4-8. EEP MODE
This mode reads and writes the contents of the non-volatile
memory. It is not used in servicing.
If set accidentally, press the EDIT/NO button immediately to exit
it.
1. MODE display
Displays “TEMP ADJUST”, “CPLAY MODE”, etc..
2. Error rate display
Error rates are displayed as follows.
C1= AD=
C1= : Indicates C1 error
AD=: Indicates ADER
3. Address display
Address are displayed as follows.
h= a= (in MO disc)
h= s= (during CD disc)
h=: Header address
a=: ADIP address
s=: SUB Q address
Note: “—” is displayed when the address cannot be read.
4. Auto gain display
Auto gain are displayed as follows.
AGF= T=
F= Focus auto gain acquired value
T= Tracking auto gain acquired value
4-11. MEANINGS OF OTHER DISPLAYS
Table 4-4.
Note:Auto gain display and IVR display are not used in servicing.
Note: The erasing-protection tab in not detected during the test
mode. Recording will start regardless of the position of
the erasing-protection tab when the rREC button is
pressed.
4-10. TEST MODE DISPLAYS
Each time the DISPLAY button pressed, the display changes in
the following order.
Table 4-3.
4-9. FUNCTIONS OF OTHER BUTTONS
Button
^
p
CHARACTER
SCROLL
rREC
DISPLAY
6
Function
• Sets continuous playback when pressed in
the STOP state. (servo all on)
• When pressed during continuous playback,
the tracking and sled servo turns on/off.
Stop 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 the diaplay when pressed.
Disc eject
Mode
display
Address display
ADIP address
display
(during MO disc
mode)
SUB Q address
display
(during CD disc
mode)
Auto gain
display
Error rate
display
IVR
display
Display
indication
1
MONO
SHUFFLE
TRACK
DISC
PROGRAM
REPEAT
REC LEVEL
OVER
D-IN
A-IN
TOC-EDIT
Light On
CLV locked state
Pit mode
High reflection rate disc
Spindle servo
CLV-S
(pill-in mode)
ABCD adjustment
completed
• Focus auto gain
successful
• Tracking auto gain
successful
Off
CLV unlocked
state
Groove mode
Low reflection
rete disc
Spindle servo
CLV-A
(playback mode)
ABCD adjust-
ment not yet com-
pleted
Contents
Blinking
• Focus auto gain
successful
• Tracking auto
gain failed
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
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– 13 –
SECTION 5
ELECTRICAL ADJUSTMENTS
5-3. PRECAUTIONS FOR ADJUSTMENTS
1) When replacing the following parts, perform the adjustments
and checks with ®in the order shown in the following table.
Optical pick-up flexible board
5-1. PRECAUTIONS FOR CHECKING LASER DI-
ODE EMISSION
To check the emission of the laser diode during adjustments, never
view directly from the top as this may lose your eyesight.
5-2. PRECAUTIONS FOR USE OF OPTICAL
PICK-UP (KMS-260A)
As the laser diode in the optical pick-up is easily damaged by
static electricity, solder the laser tap of the flexible board when
using it.
Before disconnecting the connector, desolder first. Before con-
necting the connector, be careful not to remove the solder. Also
tale adequate measures to prevent damage by static electricity.
Handle the flexible board with care as it breaks easily.
Table 5-1.
Optical BD board
Pick-up IC171 D101 IC101, IC121, IC192
1. Temperature
compensation ×®® ®
offset adjustment
2. Laser power ®®×®
adjustment
3. Traverse ®®×®
adjustment
4. Focus bias ®®×®
adjustment
5. Error rate check ®®×®
2) Set the test mode when performing adjustments.
After completing the adjustments, exit the test mode.
3) Perform the adjustments in the order shown.
4) Use the following tools and measuring devices.
•Test disc (CD for playback only)
TDYS-1 (part No. 4-963-646-01)
•Laser power meter
LPM-8001 (part No. J-2501-046-A)
•Oscilloscope (Measure after preforming CAL of prove.)
•Digital voltmeter
•Thermometer
5) When observing several signals on the oscilloscope, etc., make
sure that VC and ground do not connect inside the oscillo-
scope.
(VC and ground will become short-circuited)
5-4. CREATING MO CONTINUOUSLY RECORDED
DISC
* This disc is used in focus bias adjustment and error rate check.
The following describes how to create a MO continuous record-
ing disc.
1. Insert a MO disc (blank disc) commercially available.
2. Press the =0button or )+button and display
“CREC MODE”.
3. Press the YES button and display “CREC MID”.
“CREC (0300)” is displayed for a moment and recording starts.
4. Complete recording within 5 minutes.
5. Press the EDIT/NO button and stop recording.
6. Press the 6button and remove the MO disc.
The above has been how to create a continuous recording data for
the focus bias adjustment and error rate check.
Note: Be careful not to apply vibration during continuous
recording.
Pick-up Flexible board
Laser tap
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TEL 13942296513 QQ 376315150 892498299
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http://www.xiaoyu163.com
– 14 –
5-5. TEMPERATURE COMPENSATION OFFSET
ADJUSTMENT
Save the temperature data at that time in the non-volatile memory
as 25°C reference data.
Notes:
1. Usually, do not perform this adjustment.
2. Perform this adjustment in an ambient temperature of 22 °C to
28 °C. Perform it immediately after the power is turned on
when the internal temperature of the unit is the same as the
ambient temperature of 22 °C to 28 °C.
3. When D101 has been replaced, perform this adjustment after
the temperature of this part has become the ambient tempera-
ture.
Adjusting Method:
1. Press the =0button or )+button and display
“TEMPADJUST”.
2. Press the YES button and select the “TEMPADJUST” mode.
3. “TEMP = ” and the current temperature a data will be dis-
played.
4. To save the data, press the YES button.
When not saving the data, press the EDIT/NO button.
5. When the YES button is pressed, “TEMP= SAVE” will
be displayed for some time, followed by “TEMP ADJUST”.
When the EDIT/NO button is pressed, “TEMP ADJUST”
will be displayed immediately.
Specifications:
The temperature should be within “E0-EF”, “F0-FF”, “00-0F”,
“10-1F” and “20-2F”.
5-6. LASER POWER ADJUSTMENT
Connection:
Adjusting Method:
1. Set the laser power meter on the objective lens of the optical
pick-up. (When it cannot be set properly, press
the CHARACER button or SCROLL button and move the
optical pick-up.)
Connect the digital voltmeter to CN110 pin 5(I+3V) and
CN110 pin 4(IOP) of the BD board.
2. Press the =0button or )+button and display
“LDPWR ADJUST”.
(Laser power: for adjustment)
3. Press the YES button and display “LD 0.9 mW $ ”.
4. Press the =0button or )+button so that the
reading of the laser power meter becomes 0.82 to 0.91 mW.
Set the range control on the laser power meter to 10 mW, then
press the YES button to save the adjustment result in the non-
volatile memory.
(“LD SAVE $ ” will be displayed for a moment.)
5. Then “LD 7.0 mW $ ”will be displayed.
6. Press the =0button or )+button so that the
reading of the laser power meter becomes 6.9 to 7.1 mW, press
the YES button and save the adjustment result in the non-
volatile memory.
(“LD SAVE $ ” will be displayed for a moment.)
Note: Do not perform the emission with 7.0 mW more than 15
seconds continuously.
7. Press the =0button or )+button and display
“LDPWR CHECK”.
8. Press the YES button and display “LD 0.9 mW $ ”.
Check that the reading of the laser power meter becomes 0.80
to 0.96 mW.
9. Press the YES button and display “LD 7.0 mW $ ”.
Check that the reading of the laser power meter and digital
voltmeter satisfy the specified value.
Specification:
Laser power meter reading : 7.0 ± 0.2 mW
Digital voltmeter reading : Optical pick-up displayed value ±10%
10. Press the EDIT/NO button and display “LDPWR CHECK”,
and stop the laser emission.
(The EDIT/NO button is effective at all times to stop the
laser emission.)
Optical pick-up
objective lens
laser
power meter
KMS260A
27X40
B0825
lOP=82.5 mA in this case
lOP (mA) = Digital voltmeter reading (mV)/1 (
Ω
)
(Optical pick-up label)
+
–
BD board
digital voltmeter
CN110 pin
5
(I+3V)
CN110 pin
4
(IOP)
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TEL 13942296513 QQ 376315150 892498299
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– 15 –
5-7. TRAVERSE (E-F BALANCE) ADJUSTMENT
Note 1: Data will be erased during MO reading if a recorded
disc is used in this adjustment.
Note 2: If the traverse waveform is not clear, connect the os-
cilloscope as shown in the following figure so that it
can be seen more clearly.
Connection:
8. Press the =0button or )+button so that the
waveforms of the oscilloscope becomes the specified value.
(When the =0button or )+button is pressed,
the “ ” of “EFB= MO-W” changes and the waveform
changes.)
In this adjustment, waveform varies at intervals of approx.
2%. Adjust the waveform so that the specified value is satis-
fied as much as possible.
(MO write power traverse adjustment)
(Traverse Waveform)
9. Press the YES button, and save the result of adjustment to
the non-volatile memory.
(“EFB= SAVE” will be displayed for a moment. Then
“EFB= MO-P” will be displayed.)
10. The optical pick-up moves to the pit area automatically and
servo is locked.
11. Press the =0button or )+button until the
waveforms of the oscilloscope moves closer to the specified
value.
In this adjustment, waveform varies at intervals of approx. 2%.
Adjust the waveform so that the specified value is satisfied as
much as possible.
1. Connect an oscilloscope to CN110 pin 3(TEO) and CN110
pin 2(VC) of the BD board.
2. Load a MO disc (any available on the market). (Refer to note
1.)
3. Press the CHARACTER button or SCROLL button and
move the optical pick-up to outer circumference outside the
pit area.
4. Press the =0button or )+button and display
“EFBAL ADJUST”.
5. Press the YES button and display “EFB= MO-R”.
(Laser power READ power/Focus servo ON/tracking servo
OFF/spindle (S) servo ON)
6. Press the =0button or )+button so that the
waveforms of the oscilloscope becomes the specified value.
(When the =0button or )+button is pressed,
the “ ” of “EFB= MO-R” changes and the waveform
changes.)
In this adjustment, waveform varies at intervals of approx. 2%.
Adjust the waveform so that the specified value is satisfied as
much as possible.
(MO read power traverse adjustment)
(Traverse Waveform)
7. Press the YES button, and save the result of adjustment to
the non-volatile memory.
(“EFB= SAVE” will be displayed for a moment. Then
“EFB= MO-W” will be displayed.)
Adjusting Method:
(Traverse Waveform)
12. Press the YES button, and save the result of adjustment to the
non-volatile memory.
(“EFB= SAVE” will be displayed for a moment. Then
“EFBAL CD” will be displayed.)
The disc stops rotating automatically.
13. Press the 6button and remove the MO disc.
14. Load the test disc TDYS-1.
15. Press the YES button and display “EFB= CD”.
Servo is imposed automatically.
16. Press the =0button or )+button until the
waveforms of the oscilloscope moves closer to the specified
value.
In this adjustment, waveform varies at intervals of approx. 2%.
Adjust the waveform so that the specified value is satisfied as
much as possible.
17. Press the YES button, and save the result of adjustment to the
non-volatile memory.
(“EFB= SAVE” will be displayed for a moment. Then
“EFBAL ADJUST” will be displayed.)
18. Press the 6button and remove the test disc TDYS-1.
(Traverse Waveform)
+
–
oscilloscope
(DC range)
10 pF
330 k
Ω
CN110 pin
3
(TEO)
CN110 pin
2
(VC)
BD board
+
–
BD board
CN110 pin
3
(TEO)
CN110 pin
2
(VC)
oscilloscope
(DC range)
V: 0.1 V/div
H: 10 ms/div
A
B
VC
specification: A=B
A
B
VC
specification: A=B
A
B
VC
specification: A=B
A
B
VC
specification: A=B
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
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– 16 –
5-8. FOCUS BIAS ADJUSTMENT
Adjusting Method:
1. Load a continuously recorded disc (Refer to “5-4. Creating
MO Continuously Recorded Disc”.).
2. Press the =0button or )+button and display
“CPLAY MODE”.
3. Press the YES button and display “CPLAY MID”.
4. Press the EDIT/NO button when “C1= AD= ” is dis-
played.
5. Press the =0button or )+button and display
“FBIAS ADJUST”.
6. Press the YES button and display “ /a= ”.
The first four digits indicate the C1 error rate, the two digits
after [/] indicateADER, and the 2 digits after [a=] indicate the
focus bias value.
7. Press the )+button and find the focus bias value at
which the C1 error rate becomes 220. (Refer to note 2.)
8. Press the YES button and display “ /b= ”.
9. Press the =0button and find the focus bias value at
which the C1 error rate becomes 220. (Refer to note 2.)
10. Press the YES button and display “ /c= ”.
11. Check that the C1 error rate is below 50 andADER is 00.
Then press the YES button.
12. If the “( )” in “ - - ()” is above 20, press the YES
button.
If below 20, press the EDIT/NO button and repeat the ad-
justment from step 2 again.
13. Press the EDIT/NO button and press the 6button to re-
move the continuously recorded disc.
Note 1: The relation between the C1 error and focus bias is as
shown in the following figure. Find points a and b in the
following figure using the above adjustment. The focal
point position c is automatically calculated from points a
and b.
Note 2: As the C1 error rate changes, perform the adjustment us-
ing the average vale.
5-9. ERROR RATE CHECK
5-9-1. CD Error Rate Check
Checking Method:
1. Load a test disc TDYS-1.
2. Press the =0button or )+button and display
“CPLAY MODE”.
3. Press the YES button and display “CPLAY MID”.
4. “C1= AD= ” is displayed.
5. Check that the C1 error is below 20.
6. Press the EDIT/NO button, stop playback, press the 6but-
ton, and remove the test disc.
5-9-2. MO Error Rate Check
Checking Method:
1. Load a continuously recorded disc (Refer to “5-4. Creating
MO Continuously Recorded Disc”.).
2. Press the =0button or )+button and display
“CPLAY MODE”.
3. Press the YES button and display “CPLAY MID”.
4. “C1= AD= ” is displayed.
5. If the C1 error is below 50, check that ADER is 00.
6. Press the EDIT/NO button, stop playback, press
the 6button, and remove the continuously recorded disc.
5-10. FOCUS BIAS CHECK
Change the focus bias and check the focus tolerance amount.
Checking Method:
1. Load a continuously recorded disc (Refer to “5-4. Creating
MO Continuously Recorded Disc”.).
2. Press the =0button or )+button and display
“CPLAY MODE”.
3. Press the YES button and display “CPLAY MID”.
4. Press the EDIT/NO button when “C1= AD= ” is dis-
played.
5. Press the =0button or )+button and display
“FBIAS CHECK”.
6. Press the YES button and display “ /c= ”.
The first four digits indicate the C1 error rate, the two digits
after [/] indicateADER, and the 2 digits after [c=] indicate the
focus bias value.
Check that the C1 error is below 50 and ADER is 00.
7. Press the YES button and display “ / b= ”.
Check that the C1 error is not below 220 and ADER is not
above 00 every time.
8. Press the YES button and display “ / a= ”.
Check that the C1 error is not below 220 and ADER is not
above 00 every time.
9. Press the EDIT/NO button, next press the 6button, and re-
move the continuously recorded disc.
Note 1: If the C1 error and ADER are above 00 at points a or b,
the focus bias adjustment may not have been carried out
properly. Adjust perform the beginning again.
C1 error
220
bca
Focus bias value
(F. BIAS)
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
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– 17 –
IC171
IC121
IC101
RF
VC TEO IOP
I+3V
CN110
15
CN101
D101
IC192
5-11. ADJUSTING POINTS AND CONNECTING POINTS
— BD BOARD (SIDE A) —
— BD BOARD (SIDE B) —
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
– 18 –
SECTION 6
DIAGRAMS
6-1. CIRCUIT BOARDS LOCATION
POWER board
OPJ board
SW board
INDICATION board
CONTROL board
BD board
DIGITAL board
E.SW board
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
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MDS-MX101
6-2. BLOCK DIAGRAM
— 19 — — 20 — — 21 —
COMPA-
RATOR
OVER WRITE
HEAD DRIVE
Q181,182
OVER WRITE
HEAD DRIVE
IC181
CB
AD
I J
F
E
15
RF
AMP
IC101
RF AMP,
FOCUS/TRACKING
ERROR AMP
MORFO
RF
AGC
VCC
PEAK &
BOTTOM
EQ
B.P.F
1
2
48 47
46 40
AGCI
RFO
EQ
WBL
3T
14
I-V
AMP
4
5
6
7
I-V
AMP
B.P.F
3T
8
9
AT
AMP
TEMPI
TEMPR
12
TEMP
AMP
ABCD
AMP
FOCUS
ERROR AMP
TRACKING
ERROR AMP
29 30
DECODER
SERIAL/
PARALLEL
CONVERTER
V-I
CONVERTER
LD/PD
AMP
LASER ON
SWITCH
Q101
Q162,163
AUTOMATIC
POWER
CONTROL
COMMAND
EQ
3T
00X
WBL
11
10
HF
MODULE
MORFI
APC REF
PD
APC
32
17
16
18
20
XLAT
SCLK
SWDT
FOCNT
ADFG
28
26
34
35
33
5
37
SE
TE
FE
ABCD
AUX
BOTM
PEAK
38
RF
I
J
A
B
C
D
F
E
DETECTOR
OPTICAL PICK-UP BLOCK
(KMS-260A/J1N)
I
J
A
B
C
D
F
E
LASER ON
DIODE
D101
ILCC
PD
VR
BUFFER
IC122
SLED
MOTOR
DRIVE
SPINDLE
MOTOR
DRIVE
FOCUS
COIL
DRIVE
TRACKING
COIL
DRIVE
6
OUT 4F
8
OUT 4R
15
IN 3R
16
PSB
27
OUT 2F
25
OUT 2R
23
OUT 1R
10
OUT 3R
21
OUT 1F
12
OUT 3F
14
IN 3F
19
IN 1F
29
IN 2F
3
IN 4F
18
IN 1R
30
IN 2R
4
IN 4R
M
M
FOCUS
COIL
TRACKING
COIL
SPINDLE
MOTOR
SLED
MOTOR
M901
M902
2-AXIS
DEVICE
16
FCS+
FCS
TRK+
TRK
MOD
HF MODULE
SWITCH
IC103,Q102-104
MOD
WRPWM
A+3V
VC
K
VCC
VC SPINDLE/SLED MOTOR DRIVE,
FOCUS/TRACKING COIL DRIVE
IC152
SPRD
SPFD
SFDR
SDDR
FFDR
FRDR
TFDR
TRDR
SPRD
SPFD
SFDR
SDDR
FFDR
FRDR
TFDR
TRDR
Q180
HR901
OVER WRITE
HEAD
55
562
63
66
64
65
74
73
79
82
81
80
41
42
44
45
83
78
100
58
59
60
61
52
51
FILTER
EFMO
PCO
FILI
FILO
CLTV
PLL
ASYO
ASYI
RFI
PEAK
BOTM
AUTO
SEQUENCER
DRAM
EFM/ACIRC
ENCODER/DECODER
SHOCK PROOF
MEMORY CONTROLLER
ATRAC
ENCODER/DECODER
DIGITAL
AUDIO
INTERFACE
SAMPLING
RATE
CONVERTER
SUBCODE
PROCESSOR
512FS
BUFFER
IC123
CLOCK
GENERATOR
SERVO
DIGITAL SIGNAL
PROCESSOR
26
XBCK
25
LRCK
16
OSCI
17
OSCO
12
DQSY 11
SQSY 14
XINT
21
DIN
24
DADT 23
ADDT
22
DOUT
94
1
MNT0
2
3
4
5
SWDT
6
SCLK
7
XLAT
8
SRDT
9
SENS
MONITOR
CONTROL
CPU
INTERFACE
MNT1
MNT2
MNT3
ANALOG MUX
ABCD
AUX
SE
TE
FE
ADIP
DEMODULATOR/
DECODER
ADFG
SPINDLE
SERVO
A/D
CONVERTER
FOCNT
DTRF
XWE
XWE
D0 – D3 A0 – A9
D RAM
IC124
XRAS
XCAS
XOE
XCAS
XRAS
XWE
CKRF
XLRF
AUTOMATIC
POWER
CONTROL
PWM
GENERATOR
ADRESS/DATA BUS
APCREF
93 92 91 88 89 86 85
SPRD
SPFD
SFDR
SDDR
FFDR
FRDR
TFDR
TRDR
1013
RECP
RST
DIGITAL SIGNAL
PROCESSOR
IC121
15
TX
LOADING
MOTOR
DRIVE
2
10 5
6
4
REFERENCE
VOLTAGE SWITCH
Q100,101
M
LOADING MOTOR DRIVE
IC100
OUT1
REV
FWD
OUT2
REF
M903
LOADING
MOTOR
5
6
SDA
SCL
EEPROM
IC171
89
SCTX
91
PWAD
12
XINT
15
SQSY
16
DQSY
77
FOK
33
SHOCK
41
MNT2
42
MNT3
68
SWDT
67
SCLK
90
XLATCH
69
SRDT
52
SDA
53
SCL
94
LD OUT
81
DIG RST
80
WR PWR
86
MOD
75
LD ON
95
LD IN
39
LD LOW
37
REC P
SYSTEM CONTROL
IC200
BCK
LRCK
32
SENS
S688
(REC POSITION)
38
PB P
S687
(PB POSITION)
8
PACK OUT
S686
(PACK OUT)
6
CHACK IN
S685
(CHACKING IN)
7
PACK IN
3.3V
97
PROTECT
S683
(PROTECT)
98
REFRECT
S682
(REFLECT)
96
LIMIT IN
S681
(LIMIT IN)
28
XIN
27
XOUT
25
XIN-T
24
XOUT-T
X201
32.768kHz
X200
12MHz
35
62
X202
22MHz
OSC
IC201 1 3 2 5
CK
QDQ
DIVIDER
IC203
14
SDT O
13
SDT I
12
SCLK
11
LRCK
15
MCLK
1
PH5
5
A IN L
BCK
LRCK
A/D,D/A CONVERTER
IC202
OPTICAL
INPUT
IC104
OPTICAL
OUTPUT
IC103 DIGITAL OUT
SYSTEM CONTROL
DIGITAL IN
26
A OUT L
3
A IN R
27
A OUT R
23
PDDA
24
PDAD
16
DEM0
92
PWDA 88
DEMP
3
KEY 0
5
KEY 2
4
KEY 1
61
SYNC 56
PAUSE 55
PLAY 54
REC
72
FL DATA 71
FL CLK 73
FL CS
13
PDOWN
Q201-204
LED
DRIVER
S400-410
FUNCTION
KEY
D400-402
EJECT
S411
POWER
SWITCH
Q102,103
FLUORESCENT
INDICATOR TUBE
FL400
40 52 539
G1 G13 S1 S35
FL DISPLAY
DRIVER
IC400
-VM SW
Q104,105
64
VDD
56
VFL
60
RST
58
OSCO
59
OSCI
SYS 3.3V
D106 D107
2MHz
F1 F2
D104
63
DAT
62
CLK
61
CS
B+ SWITCH
Q205
+3.3V
REG
IC192 15
9
PDOWN
4
ANA5
5
SYS 3.3V
8
CD1
2
STBY
6
BACK
12
RESET
36
STBY 23
BACK 20
SYS RST
3
VCC
7
AC
REGULATOR
IC101
D109
D108
D110
D111
+12V
(IC100)
HEAD 5V
MDM 3.3V
D 3.3V
A 3.3V
MOTOR 5V
B+
(IC202)
SYS 3.3V
(IC200,400)
14
AU BUS 59
AU BK
46
BUS OUT SWITCHING
Q200
Q206
D200
1
2
5
4
9
10
12
CN102
IN L
OUT L
IN R
OUT R
AU BUS
AC
AC
: MD PB
: MD REC
: MD PB (DIGITAL OUT)
: MD REC (DIGITAL IN)
PD
LD
WAVE
SHAPER
IC102
46 49
1, 2, 18, 19 5 – 9, 11 –15
29 – 32, 34 – 38, 43
3
4
17
16
• Signal path.
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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