Model Name Using Similar MechanismNEW
MD Mechanism TypeMT-MZE44-140
Optical Pick-up Mechanism TypeODX-1A/1B
General
Power requirements
Rechageable battery (supplied)
Nickel metal hydride rechargeable battery NH-9WM (N)
One LR6 (size AA) alkaline battery (not supplied)
Sony AC Power Adaptor AC-E15L (not supplied) connected at the
DC IN 1.5V jack
Battery operation time
BatteriesPlayback
Nickel metal hydrideApprox.
Rechargeable battery (NH-9WM (N))5.5 hours
One LR6 (size AA)Approx.
Sony alkaline dry batteries8.5 hours
Nickel metal hydride (NH-9WM (N)) +Approx.
One LR6 (size AA)16 hours
Dimensions
Approx. 87 x 17.8 x 91.5 mm (w/h/d)
(3 1/2 x 23/32 x 3 5/8 in) not including projecting parts and controls
Mass
Approx. 115 g (4.1 oz.) the player only
Approx. 155 g (5.5 oz.) incl. a premastered MD and a nickel
metal hydride rechargeable battery NH-9WM (N)
Supplied accessories
Battery charger (1)
Rechargeable battery (1)
Rechargeable battery carrying case (1)
Headphones with a remote control (1)
Dry battery case (1)
Handstrap (1)
Carrying pouch (1)
LR6 (size AA) alkaline battery (1) (Tourist model only)
MICROFILM
Design and specifications are subject to change without notice.
4. TEST MODE................................................................... 7
This Mini Disc player is classified as a CLASS 1 LASER
product.
The CLASS 1 LASER
PRODUCT label is located on
the bottom exterior.
IN NO EVENT SHALL SELLER BE
LIABLE FOR ANY DIRECT,
INCIDENTAL OR CONSEQUENTIAL
DAMAGES OF ANY NATURE, OR
LOSSES OR EXPENSES RESULTING
FROM ANY DEFECTIVE PRODUCT
OR THE USE OF ANY PRODUCT.
“MD WALKMAN” is a trademark of Sony
Corporation.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.
8. ELECTRICAL PARTS LIST ................................ 31
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.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be damaged by heat.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH
MARK ! ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS
LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN
SUPPLEMENTS PUBLISHED BY SONY.
SECTION 1
SERVICING NOTE
When repairing this device with the power on, if you remove the main board, this device stops working.
In this case, you work without the device stopping by fastening the hook of the Open/Close detection switch (S801) with tape.
Chassis ASSY
Main board
Tape
Open/Close switch (S801)
– 2 –
Page 3
LOCATION AND FUNCTION OF CONTROLS
Main Unit
SECTION 2
GENERAL
5
4
3
2
1 MD operate buttons
” • + (PLAY • FF )
= (REW )
p (STOP)
2 HOLD switch
3 VOLUME +/– buttons
4 EJECT button
6
7
8
9
!º
1
5 OPERA TE lamp
6 Battery compartment
7 External battery terminal (+/–)
8 DIGIT AL MEGA BASS s witc h
9 AVLS s witc h
!º 2 / REMOTE jack
Headphones with Remote Control
4
5
6
7
8
3
1 Headphones
2 MD operate switch and buttons
” • + (PLAY • FF)
= (REW)
p (STOP)
3 VOL +/– button
4 Display indicator
5 DISPLAY button
6 PLAYMODE button
7 P (PAUSE) b utton
8 HOLD c switch
9 p (STOP) b utton
2
9
1
– 3 –
Page 4
SECTION 3
n
DISASSEMBLY
r
The equipment can be removed using the following procedure.
Upper panel ASSY
setMain boardBelt ASSY, Front panel ASSY
Bottom panel ASSY
Note : Follow the disassembly procedure in the numerical order given.
Mechanism deck section
Optical pick-up block ASSY
3-1. UPPER PANEL ASSY
2
Screws (M1.4) pan precision
3
1
Upper panel ASSY
2
Screws (M1.4) pan precision
Main section
3-2. BOTTOM PANEL ASSY
1
Screws (M1.4)
pan precision
Bottom panel ASSY
1
Screws (M1.4) pan precision
Main sectio
2
3-3. MAIN BOARD
9
Remove solder
Battery case ASSY
4
Switch unit (CN801)
3
Screw (M1.4)
pan precision
6
board (CN551)
5
Flexible board
(CN501)
9
!º
Flexible (CLV)
Remove solder
1
Screw (M1.4x2)
toothed lock
8
2
Screw
7
Screw tapping (M1.7)
9
Remove solder
Main board
1
Screws (M1.4x2)
toothed lock
– 4 –
Page 5
3-4. BELT ASSY, FRONT PANEL ASSY
)
Boss
Claws
32
5
Belt ASSY
Boss
4
7
Claws
1
Main section
Front panel ASSY
6
Screw
(M1.4) pan precision
3-5. MECHANISM DECK SECTION
8
Boss
Mechanism deck section
1
Remove claws
Claw
1
Remove claws
2
Step screws
3
Chassis ASSY (main section
– 5 –
Page 6
3-6. OPTICAL PICK-UP BLOCK ASSY
)
Optical pick-up block ASSY
2
OP flexible board
4
r
NOTE
When replacing the optical block, the OP flexible board protective sheet (SW) is necessary.
Before replacing, check where the sheet (SW) is pasted onto the
old OP flexible board and paste it on the new OP flexible board in
the same way.
3
5
1
Screw precision
Main shaft
Chassis ASSY (MD section
Pasting on the sheet (SW) :
Paste on aligning the sheet (SW) center section with the edge of
the OP flexible board as in the figure and folding the excess over
onto the opposite side.
OP flexible board
Optical pick-up ASSY
5 mm
Sheet (SW)
– 6 –
Page 7
SECTION 4
” key
” key
p key
p key
p key
p key
VOL
+ key
VOL
– key
(Start ?)
Overall
adjustment
mode (Auto?)
Adjustment
mode
(Manu ?)
Servo mode
0 0 0
Audio mode
1 0 0
Servo mode
3 0 0
+, – keys
+, – keys
+, – keys
Display when test mode
is set
Displays of the LCD on the remote commander
are shown in parentheses.
TEST MODE
Outline
• In this set, overall adjustment mode is made available by entering test mode to perform automatic adjustment of CD and MO.
In the overall adjustment mode, the disc is determined whether
it is CD or MO and adjustments are performed in sequence. If a
fault is found, the location of the fault is displayed. Also, in servo
mode, each adjustment can be automatically made.
Setting the Test Mode
To enter the test mode, two methods are available :
1. Entering method with key input.
Turn on the HOLD switch on the set. While holding down the p
key on the set, press the following remote commander keys in
the following order :
+ n + n = n = n + n = n + n
= n P n P
2. Entering method by shorting the test point
Solder bridge the test point TAP801 (TEST) on the main board
(connect IC801 pin #™ to GND), and turn on the POWER.
[MAIN BOARD] (Conductor side)
Configuration of Test Mode
The test mode has the configuration given below.
Servo Mode
• Set the test mode, press the VOLUME – key and use the ” key
to set the servo mode.
• When the servo mode is set, use the + key and the = key
to move the optical pick-up to the outer circumference and to
the inner circumference respectively.
• When entering another mode, refer to the configuration of test
mode.
1. Structure of Servo Mode
Test mode
Short : Test mode
Open : Normal mode
Releasing the Test Mode
1. When test mode was entered with key input, turn off the POWER.
2. When test mode was entered by shorting the test point, turn off
the POWER and open the solder bridge of TAP801 (TEST
MODE) on the main board.
Operation of Setting on Test Mode
When the test mode is set, the LCD displays the following :
LCD on remote commander
V3. 300
• The cycle - the above ROM version display n All lit n All off
- is repeated.
(The ROM version is constantly displayed.)
• When the PLAY MODE key is pressed and hold down, the display at that time is held so that display can be checked.
ROM version display
– 7 –
Servo mode
0 0 0
p key
p key
1
” key
Offset adjustment
+, – keys+, – keys
Laser power
adjustment
23
(See page 8)
0 1 0
0 2 0
” key
p key
p key
*1 Repeatedly press ” key
to change the mode.
(Refer to the following list
for a description of each
mode.)
011 to 013
*1
” key
” key
021 to 024
*1
” key
Page 8
(See page 7.)
1
p key
p key
p key
23
MO adjustment
0 3 0
p key
+, – keys
Low reflection
CD adjustment
0 4 0
p key
+, – keys
CD adjustment
0 5 0
p key
+, – keys
” key
” key
” key
031 to 039
*1
” key
041 to 048
*1
” key
051 to 058
*1
” key
2. Description of Each Mode
010 Offset adjustment
ModeDescription
011FE offset
012TE offset
013All servo ON
020 Laser power adjustment
ModeDescription
021MO power A
022MO power E
023CDL power
024CD power
030 MO adjustment
ModeDescription
031MO EF balance
032MO EF gain
033MO ABCD gain
034MO focus gain
035MO tracking gain
036MO RF gain
037MO ADIP gain
038MO focus bias E
039CD focus bias A
p key
p key
p key
Sled movement
0 6 0
p key
+, – keys
Automatic
adjustment
0 7 0
p key
+, – keys
NV relation
0 9 0
p key
+, – keys
Retern the Offset
adjustment (010)
” key
061 , 062
*1
” key
” key
071, 072,
073, 074
*1
” key
” key
091, 092,
093
*1
” key
*1 : Repeatedly press ” key
to change the mode.
(Refer to the following list
for a description of each
mode.)
040 Lower reflection CD adjustment
ModeDescription
041Lower reflection CD EF balance
042Lower reflection CD EF gain
043Lower reflection CD ABCD gain
044Lower reflection CD focus gain
045Lower reflection CD tracking gain
046Lower reflection CD RF offset
047Lower reflection CD RF gain
048Lower reflection CD focus bias
050 CD adjustment
ModeDescription
051CD EF balance
052CD EF gain
053CD ABCD gain
054CD focus gain
055CD tracking gain
056CD RF offset
057CD RF gain
058CD focus bias
• Enter the test mode and press the VOLUME – key. Then, press
the ( key and the VOLUME + key in this turn to enter audio
mode.
• When entering another mode, refer to the configuration of test
mode.
1. Structure of Audio Mode
Audio mode
1 0 0
p key
” key
Audio playback test
1 1 0
p key
p key
p key
p key
p key
p key
p key
p key
p key
” key
1kHz 0dB L/R
1 1 1
” key
Infinity Zero
1 1 2
” key
1kHz 0dB L
1 1 3
” key
1kHz 0dB R
1 1 4
” key
1kHz –20dB L/R
1 1 5
” key
20Hz –20dB L/R
1 1 6
” key
20kHz –20dB L/R
1 1 7
” key
16kHz De-Emphasis
L/R
1 1 8
” key
100Hz 0dB L/R
1 1 9
” key
headphones
output
–12dB
–
–12dB
–12dB
–20dB
–20dB
–20dB
–20dB
–40dB
• The mode No. 111 is for S/N and crosstalk. The mode No. 1 15 is
for distortion factor and frequency characteristics.
• When the VOLUME +/– keys is pressed in any mode, the volume of the headphones is changed (increased/decreased) in units
of one step. When the + / = keys is pressed, the volume of
the headphones is maximized/minimized.
• For the volume value, any changed value remains as it is basically.
However, when the volume is switched from 114 to 115 or 118
to 119, it returns the default value.
– 9 –
Page 10
SECTION 5
ELECTRICAL ADJUSTMENTS
Power Mode
• Enter the test mode and press the VOLUME – key. Then, press
the ( key and the VOLUME – key in this turn to enter power
mode.
• When entering another mode, refer to the configuration of test
mode.
1. Structure of Power Mode
Power mode
3 0 0
p key
” key
UNREG check
31 0
p key
” key
Power OFF
3 1 1
” key
Overall Adjustment Mode
• Enter the test mode and press the VOLUME + key to enter overall adjustment mode.
• When entering another mode, refer to the configuration of test
mode.
• When the overall adjustment mode is entered, the LCD on the
remote commander display the following :
040Auto?
1. Structure of Overall Adjustment Mode
Overall
adjustment
mode
Auto?
” key
Notes for Adjustment
• In this set, automatic adjustment of CD and MO can be performed by entering the test mode.
• Adjustments are performed in the overall adjustment mode. If
an item is determined as NG, the item is readjusted in servo
mode.
Adjustment Method in Overall Adjustment Mode
1. Enter the test mode and press the VOLUME + key to enter overall adjustment mode.
2. Insert the CD test disc (TGYS-1) or SONY MO disc (recorded)
commercially available.
3. Press the ( key twice. The disc is determined whether it is CD
or MO and each adjustment mode is set. Automatic adjustments
are performed in the order of the items listed below.
• In CD Automatic adjustment Mode
No.ModeDescription
1061Sled in
2071Focus search
3062Sled out 5
4051CD EF balance
5052CD EF gain
6051CD EF balance
7053CD ABCD gain
8054CD focus gain
9055CD tracking gain
10056CD RF offset
11057CD RF gain
12056CD RF offset
13058CD Focus bias
Start ?
” key (to discriminate between CD and MO)
CD automatic
adjustment
MO automatic
adjustment
OK
NG
OK
NG
p key
p key
p key
p key
Adjustment
mode
Manu ?
– 10 –
Page 11
057
Adjustment value (flashing)
Mode No. under adjustment
047
End-OK
• In MO Automatic adjustment Mode
No.ModeDescription
1061Sled in
2071Focus search
3062Sled out
4031MO EF balance
5032MO EF gain
6031MO EF balance
7033MO ABCD gain
8034MO focus gain
9035MO tracking gain
10036MO RF gain
11037MO ADIP gain
12039MO focus bias A
13073ADER check
14071Focus search
15031MO EF balance
16032MO EF gain
17031MO EF balance
18033MO ABCD gain
19034MO focus gain
20035MO tracking gain
21036MO RF gain
22037MO ADIP gain
23039MO focus bias A
24073ADER check
25061Sled in
26071Focus search
27041Low reflection CD EF balance
28042Low reflection CD EF gain
29041Low reflection CD EF balance
30043Low reflection CD ABCD gain
31044Low reflection CD focus gain
32045Low reflection CD tracking gain
33046Low reflection CD RF offset
34047Low reflection CD RF gain
35061Sled in
36071Focus search
37041Low reflection CD EF balance
38042Low reflection CD EF gain
39041Low reflection CD EF balance
40043Low reflection CD ABCD gain
41044Low reflection CD focus gain
42045Low reflection CD tracking gain
43046Low reflection CD RF offset
44047Low reflection CD RF gain
* Remote commander display during automatic adjustment
4. If result of automatic adjustment is OK, the following display
appears.
5. If result of automatic adjustment is NG, the following display
appears.
051
NG mode No.
NG
Error code
* If NG, enter servo mode to perform automatic adjustment of the
item determined as NG.
– 11 –
Page 12
)
Adjusting the OFF-track threshold
• Perform only for Ver. 1.000.
• Only for MO (use AU-1 disk).
• Use the following procedure.
• Monitor (adjust) with a storage oscilloscope.
1. Set in Test mode (Manual mode).
2. Press the PLAYMODE key per 030.
(2.6 volt operating mode • • • • • • Two battery marks light up.)
3. Check that the OP is at the center (not the outermost or innermost circumference) and then play the AU-1 disk (031 n 032n 033).
4. Press the PAUSE key at 033 and adjust the MO ABCD gain.
5. Press the STOP key (030), monitor the OFTRK (SP508) signal
and set the focus ON at 031 with the PLAY key.
H
OFTRK
L
6. The adjustment is okay when the periods for “H” and “L” of the
OFTRK is about equal.
7. Perform an overall adjustment without turning off the power.
8. Perform the following operation when the periods for “H” and
“L” of the OFTRK are not equal.
Press the DISPLAY key 6 times per “030” to set in Memory
mode.
[5C ø] is displayed. Press the remote control p key 6 times and
use the ” key 9 times to align at [629].
Shift the figure with the remote control ’, ‘ keys per the “629”
address and press PAUSE < set > (reset value “OA”).
(1) This figure is small when “H” is long.
3. When the automatic adjustment is completed, the flashing adjustment value is lit.
052
Adjustment value (lit
ø A n ø 9 n ø 8 n
• • • • • • • •
(2) This figure is large when “L” is long.
ø A n ø 9 n ø 8 n• • • • • • • •
Press the DISPLAY key one time to return to [030].
9. Return to 5. Press the PLAY key (remote control ” key) again
to set to 031 (Focus ON).
Adjustment in Servo Mode Method
1. When each adjustment mode is set according to the structure of
servo mode, the lower two digits of the mode No. and the adjustment value written in EEPROM are displayed and lit on the
LCD on the remote commander.
052
Adjustment value (lit)
Mode No.
2. When the P key is pressed, the following display appears and
the automatic adjustment is performed.
052
Adjustment value (flashing)
Note)Although the VOLUME +/– keys can be used to change
the adjustment value to any value, they should not be
used whenever possible.
1–Not used (Fixed at “L” ).
2UREG MONIUnreg voltage monitor input.
3–Not used (Fixed at “L” ).
4VREFIReference voltage for power supply voltage adjustlment.
5PLAY KEYISet PLAY key input.
6OPEN/CLS SWIOPEN/CLOSE switch input. L : Close
7RMC KEYIRemote commander key input.
8SET KEYISet key input.
9XRESETISysten reset input (At reset : “L” ).
10AVDD–A/D converter power supply (+2.6V or +2.8V).
11AVSS–A/D converter Ground.
12TYPE 0IModel discrimination terminal (Fixed at “L” ).
13TYPE 1IModel discrimination terminal (Fixed at “L” ).
14TYPE 2IModel discrimination terminal (Fixed at “L” ).
15MODELIModel discrimination terminal (Fixed at “L” ).
16HOLD SWISet HOLD switch input.
17VREG CONO2.5V voltage on/off switch (Sub terminal) (not used).
18–Not used (Open).
19–Not used (Open).
20MCKIMaster clock input.
21–Not used (Open).
22VDD–Digital power supply (+2.6V or +2.8V).
23VSS–Digital Ground.
24–Not used (Open).
25VSS–Digital Ground.
26AVLS SWISet AVLS switch input.
27DSP SINTIInterrupt input from DSP.
28DBB 0IDIGITAL MEGA BASS switch input (MID).
29DBB 1IDIGITAL MEGA BASS switch input (MAX).
30OPR LEDOLED drive output.
31XWK CLROPower IC wakeup factor latch clear output and motor driver IC control signal outpt.
32ADJUSTI“Normally, Test mode select input (“L” : Test mode)
33SLEEPOPower supply circuit OFF signal output.
34SBUS CLKOSBB serial clock output.
35SBUS DATAOSBB serial data output.
36–Not used (Open).
37SLD 1 MONISled servo timing signal input.
38SLD 2 MONISled servo timing signal input.
39CLV VCONOSpindle servo drive voltage control output.
40APC REFOLaser power control output.
41V28-CONOPower voltage (+2.6V or +2.8V) correction control output.
42CLV U MONISpindle servo timing signal input.
43CLV V MONISpindle servo timing signal input.
44CLV W MONISpindle servo timing signal input.
45CLV U CONOSpindle servo drive signal output.
46CLV V CONOSpindle servo drive signal output.
47CLV W CONOSpindle servo drive signal output.
– 13 –
Page 14
Pin No.Pin NameI/OPin Description
48–Not used (Open).
49–Not used (Open).
50VDD–Digital power supply (+2.6V or +2.8V).
51VPP–Power for on board light.
52VSS–Digital ground.
53SLD 1R CONOSled motor control signal output.
54SLD 1F CONOSled motor control signal output.
55SLD 2R CONOSled motor control signal output.
56SLD 2F CONOSled motor control signal output.
57–Not used (Open).
58–Not used (Open).
59–Not used (Open).
60–Not used (Open).
61SPCKOSerial clock output for Remote control communication. Not used (Open).
62RMC DTCLKI/OSerial data input/output for Remote control communication.
63 – 66–Not used (Open).
67SLD VCONOSled servo outer voltage control output.
68SLD PWR-UPOBaypass transistor control output for sled drive power supply.
69HP MUTEOHeadphone amplifier mute output.
70HP STBYOHeadphone amplifier standby output.
71RMC SELOTSB/SSB selection signal output to remote commander terminal. Not used (Open).
72NV D0OSerial data signal output for NVRAM.
73NV D1ISerial data signal input from NVRAM.
74NV CLKOSerial clock signal output for NVRAM.
75NV CS1OChip select signal output for NVRAM.
76VDD–Digital power supply (+2.6V or +2.8V).
80VSS–Digital ground.
81 – 87–Not used (Open).
88 – 96LCD SEG0 – 8–LCD Segment terminal. Not used (Open).
97 – 100LCD COM0 – 3–LCD common terminal. Not used (Open).
– 14 –
Page 15
6-2. BLOCK DIAGRAM
MZ-E44/E45
– 15 –– 17 –– 16 –
• Signal path.
J: PLAY
Page 16
MZ-E44/E45
r
Semiconductor
Location
Ref. No.Location
D351I-10
D352H-11
D801I-5
D841F-10
D901D-5
D902H-14
IC301C-7
IC302D-7
IC501H-12
IC551G-14
IC552F-14
IC601F-12
IC603F-6
IC801C-13
IC802C-15
IC901E-4
Q501I-12
Q551G-3
Q552F-3
6-3. PRINTED WIRING BOARDS
*Note:
Use R1001 only with V er .3.0 of microprocessor (IC801).
Using R1001 with other microprocessor versions will
cause operating errors so be sure to remove it.
You can check the version with Test Mode (page 7).
Note:
• X : parts extracted from the component side.
r
•
• b : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:Parts on the pattern face side seen from the
(Side B)pattern face are indicated.
Parts face side:Parts on the parts face side seen from the
(Side A)parts face are indicated.
: Through hole.
– 18 –– 20 –– 19 –
Page 17
6-4. SCHEMATIC DIAGRAM
p
r
Refer to page 25 for IC Block Diagrams.
r
Wavef orms
1
MZ-E44/E45
800mVp-p
IC501 @•
2
IC601 #ª
3
IC601 $¡
4
VOLT/DIV : 200mV AC
TIME/DIV : 5 µsec
µ
sec
23
VOLT/DIV : 1V AC
TIME/DIV : 10 µsec
482nsec
VOLT/DIV : 500mV AC
TIME/DIV : 200nsec
2.7Vp-p
2.6Vp-p
2.0 Vp-
*Note:
Use R1001 only with Ver.3.0
of microprocessor (IC801).
Using R1001 with other microprocessor versions will cause
operating errors so be sure to
remove it.
Y ou can check the v ersion with
Test Mode (page 7).
16.9344 MHz
IC601 $ª
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and 1/
specified.
• C : panel designation.
Note: The components identified by mark ! or dotted
line with mark ! are critical for safety.
Replace only with part number specified.
• A: B+ Line.
• Power voltage is dc 1.5V and fed with regulated dc po wer
supply from battery terminal.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : PLAY
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production tolerances.
• Circled numbers refer to waveforms.
• Signal path.
J: PLAY
4
VOLT/DIV : 500mV AC
TIME/DIV : 20nsec
W or less unless otherwise
– 21 –– 22 –– 24 –– 23 –
Page 18
MZ-E44/E45
21
22
23
24
25
26
27
28
29
30
2
3
5
4
6
7
8
9
10
1
11
12
13
14
15
16
17
18
19
20
31
32
33
34
35
36
GND
VRMC
VREF
INM
RF
DTC
CRST
XRST
VBMON
VC
SPCK1
SPCK0
C2L
C1L
VB
C1H
C2H
VG
BAND GAP
REFERENCE
RESET
VB SELECT
SPCK
BUFF
CHARGE
PUMP
VSTB
VBH
SYSTEM
CONTROL
OSC1
STEP-UP
DC / DC
CONVERTER
PWM1
MODE
SELECT
SAW
OSC2
XWK1
XWK2
XWK3
XWK4
FFCLR
SLEEP
VBSEL
CLK
VB2
VB1
PGND
SW
PWM1
D0
D1
VCON
r
IC Block Diagrams
IC301 BA3577FS-E2
1
RF IN
2
RF OUT
BIAS IN
3
4
BIAS OUT
5
V IN1
V IN2
6
PWSTB
7
PWSTB T
8
MUTE
9
10
MUTE T
IC601 µPD63731GC-9EU
VDD ADC
1
VREF
2
RF
3
FE
4
5
ABCD
6
TE
ADIP
7
VRT
8
VRB
9
VSS ADC
10
T-COUNT
11
DEFECT
12
OFTRK
13
VSS
14
NC
15
NC
16
NC
17
18
NC
19
NC
20
NC
21
TFOUT
TROUT
FROUT
FFOUT
CK176
22
23
24
25
R/F
100
ADC
26 27 28 29 30
PWSTB
MUTE
ID0
ID1
ADIP
RF
FE
ABCD
TE
5
NC
NC
BEEP
ID2
ID3
FOK
FON
ERFLAG
CRCF
ADIP
PLL
EFM
PLL
DSSP
3
SBD
8
8
SSB CONTROL
MONITOR I/O etc.
MC
VDD
SUBQ/ADIP
DECODER
4
2nd MSB
SBR
SBA
SBW
8
31 32 33 34 35 36 37 38 39 40
SCK
SINT
SBUS
RESET
VCC
TEST
ADIP–DATA
919293949597 969899
SQREQ
EFM ACIRC
DECODER
NC
XBUSY
+B
ADPLCK
EFM
EFM
10
NC
VDD
20
NC
NC
19
VCC
18
+B
17
NF1
16
OUT1
15
GND
14
OUT2
13
NF2
12
BEEP IN
11
PLCK
VDD
MO3
MO2
MO1
MO0
PLCK
FLAG
AC LRCK
AC WDCK
AC BYCK
AC DATA
8
EFM DATA A/B
WR REQ etc.
ATRAC
DECODER
41 42 43 44 45 46 47 48 49 50
BCK
LRCK
VSS
DOUT
AUDATA
EMP
IC552 TLC372CPWR
8
V+
1
2
MOCK
MICK
MI3
MI2
MI1
MI0
VSS
767778798081828384858687868990
AC
EBA
ATDT
DREQ
CLOCK
GENERATOR
VSS
MCK/2
WDCK
S DATA
16
8
12
8
16
X1
MCK I-O
8
X0
MCK
SECTOR
DECODER
ECC DATA
RD DT ECC
XATWE
XBUSY
PMCK
SECTION 7
EXPLODED VIEWS
IC802 AK93C55AV-LIC551 MPC17A55FTA
NOTE :
• -XX, -X mean standardized parts, so they
may have some difference from the original
one.
• Color indication of Appearance Parts
Example :
• The mechanical parts with no reference
number in the exploded views are not
supplied.
• Accessories and packing materials are given
in the last of this parts list.
The components identified by mark !
or dotted line with mark ! are critical
for safety.
Replace only with part number specified.
KNOB, BALANCE (WHITE) ••• (RED)
↑↑
Parts color Cabinet's color
• Items marked “ * ”are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
561-475-804-11 SWITCH UNIT
574-211-119-01 SCREW, STEP
58X-4950-229-1 CHASSIS ASSY (MAIN SECTION)
594-989-078-01 SPRING (OPEN), TENSION
604-995-274-11 SPRING (O-C), TORSION
614-982-418-01 DAMPER
624-211-118-01 LID, BATTERY CASE
634-212-087-01 TERMINAL
64X-4950-232-1 CASE ASSY, BATTERY
654-963-883-41 SCREW (M1.4), PRECISION PAN
664-217-305-01 SHEET, BLIND
– 29 –
Page 20
7-3. MECHANISM DECK SECTION
(MT-MZE44-140)
113
106
107
M902
M901
104
103
*
R1001
102
not
supplied
108
101
105
*Note :
Use R1001 only with Ver.3.0 of microprocessor
(IC801).
Using R1001 with other microprocessor versions will
cause operating errors so be sure to remove it.
You can check the version with Test Mode (page 7).
R1011-216-835-11 METAL CHIP15K5%1/16W
R1021-216-831-11 METAL CHIP6.8K5%1/16W
R1031-216-829-11 METAL CHIP4.7K5%1/16W
R1041-216-864-11 METAL CHIP05%1/16W
R2011-216-835-11 METAL CHIP15K5%1/16W
R2021-216-831-11 METAL CHIP6.8K5%1/16W
R2031-216-829-11 METAL CHIP4.7K5%1/16W
R2041-216-864-11 METAL CHIP05%1/16W
R3011-216-809-11 METAL CHIP1005%1/16W
R3021-216-803-11 METAL CHIP335%1/16W
R3031-216-797-11 METAL CHIP105%1/16W
R5011-216-817-11 METAL CHIP4705%1/16W
R5021-216-827-11 METAL CHIP3.3K5%1/16W
R5031-216-853-11 METAL CHIP470K5%1/16W
R5051-216-841-11 METAL CHIP47K5%1/16W
IC3018-759-431-56 IC BA3577FS-E2
IC3028-759-541-32 IC AK4350-VF-E1
IC5018-759-538-56 IC SN761054
IC5518-759-390-25 IC MPC17A55FTA
IC5528-759-358-40 IC TLC372CPWR
IC6018-759-538-55 IC uPD63731GC-9EU
IC6038-759-527-01 IC MN41X4400TT-10L
IC8018-759-564-20 IC RU6815MF-0004 (VERSION 3.0)
IC8018-759-580-35 IC RU6815MF-0006 (VERSION 3.3)
IC8028-759-449-23 IC AK93C55AV-L
R5061-216-864-11 METAL CHIP05%1/16W
R5071-216-864-11 METAL CHIP05%1/16W
R5081-216-793-11 RES,CHIP4.75%1/16W
R5531-216-833-11 METAL CHIP10K5%1/16W
R5541-216-833-11 METAL CHIP10K5%1/16W
R5551-216-809-11 METAL CHIP1005%1/16W
R5561-216-853-11 METAL CHIP470K5%1/16W
R6011-216-833-11 METAL CHIP10K5%1/16W
R6021-216-809-11 METAL CHIP1005%1/16W
R8011-216-845-11 METAL CHIP100K5%1/16W
R8021-216-845-11 METAL CHIP100K5%1/16W
R8031-216-853-11 METAL CHIP470K5%1/16W
R8041-216-853-11 METAL CHIP470K5%1/16W
R8081-216-825-11 METAL CHIP2.2K5%1/16W
R8101-216-827-11 METAL CHIP3.3K5%1/16W
R8111-216-827-11 METAL CHIP3.3K5%1/16W
R8121-216-841-11 METAL CHIP47K5%1/16W
R8141-216-825-11 METAL CHIP2.2K5%1/16W
R8151-216-829-11 METAL CHIP4.7K5%1/16W
R8161-216-831-11 METAL CHIP6.8K5%1/16W
R8171-216-835-11 METAL CHIP15K5%1/16W
R8181-216-839-11 METAL CHIP33K5%1/16W
R8191-216-853-11 METAL CHIP470K5%1/16W
R8201-216-845-11 METAL CHIP100K5%1/16W
R8211-216-857-11 METAL CHIP1M5%1/16W
R8411-216-809-11 METAL CHIP1005%1/16W
R8421-216-809-11 METAL CHIP1005%1/16W
R9011-216-845-11 METAL CHIP100K5%1/16W
R9021-216-853-11 METAL CHIP470K5%1/16W
R9031-216-863-11 RES,CHIP3.3M5%1/16W
R9041-216-845-11 METAL CHIP100K5%1/16W
R9061-216-827-11 METAL CHIP3.3k5%1/16W
R9091-216-847-11 METAL CHIP150K5%1/16W
R9101-218-871-11 RES,CHIP10K0.50% 1/16W
561-475-804-11 SWITCH UNIT
1031-666-784-13 FLEXIBLE (CLV) BOARD
! 114X-4949-164-1 OPTICAL PICK-UP BLOCK ASSY
M9011-698-991-11 MOTOR, DC (SPINDLE)
M9021-698-764-21 MOTOR, SLED (SLED)
R1001 1-216-789-11 METAL CHIP2.25%1/16W
*Note :
Use R1001 only with Ver.3.0 of microprocessor (IC801).
Using R1001 with other microprocessor versions will cause operating
errors so be sure to remove it.
You can check the version with Test Mode (page 7).