US and foreign patents licensed from Dolby
Laboratories Licensing Corporation
AEP Model
Hong Kong Model
Model Name Using Similar MechanismMZ-E500
MD Mechanism TypeMT-MZE500-174
Optical Pick-up Mechanism TypeLCX-4E
Audio playing system
MiniDisc digital audio system
Laser diode properties
Material: GaAlAs
Wavelength: λ = 790 nm
Emission duration: continuous
Laser output: 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.
Nickel Cadmium rechargeable battery
One NC-6WM (supplied): 1.2V, 600 mAh
One LR6 (size AA) battery (not supplied)
External power jack: Power rating 3V DC
AC power adaptor for the battery charging stand (supplied): AC230~240V,
50Hz
Battery operation time
See “When to replace or recharge the battery”
Dimensions
Approx. 74.5 × 80.5 × 17.9 mm (w/h/d) (3 × 3 1/4× 23/32 in.)
(not including projecting parts and controls)
Mass
Approx. 80 g (2.8 oz) (the player only)
Supplied accessories
Headphones/earphones with a remote control (1)
Battery charging stand (assembly needed)(1)
AC power adaptor*
Rechargeable battery (1)
Rechargeable battery carrying case (1)
Dry battery case (1)
Carrying pouch (1)
AC plug adaptor (1) (world model only)
US and foreign patents licensed from Dolby Laboratories.
Design and specifications are subject to change without notice.
8. ELECTRICAL PARTS LIST ·································· 33
CAUTION
Use of controls or adjustments or performance of
procedures other than those specified herein may result in
hazardous radiation exposure.
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
• Nev er reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be damaged by heat.
Unleaded solder
Boards requiring use of unleaded solder are printed with the leadfree mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size.)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40°C higher than
ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350°C.
Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscous (sticky, less prone to flow) than
ordinary solder so use caution not to let solder bridges occur such
as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
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.
2
Page 3
SECTION 1
Open/Close detection switch (S809)
SERVICING NOTES
MZ-E501
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
Never look into the laser diode emission from right above when
checking it for adjustment. It is feared that you will lose your sight.
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
(LCX-4E)
The laser diode in the optical pick-up block may suffer electrostatic
break-down easily. When handling it, perform soldering bridge to
the laser-tap on the flexible board. Also perform measures against
electrostatic break-down sufficiently before the operation. The
flexible board is easily damaged and should be handled with care.
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 (S809).
* Replacement of CXD2671-205GA (IC601) used in this set
requires a special tool.
OPTICAL PICK-UP FLEXIBLE BOARD
laser-tap
3
Page 4
MZ-E501
LOCATION AND FUNCTION OF CONTROLS
SECTION 2
GENERAL
This section is extracted from
instruction manual.
VOL+/–
>N
.
GROUP
x
X
3 Color Info-LED
PLAYMODERPT/ENT
DISPLAYSOUND
VOL+
VOL–
1N>
.
x
HOLD
./N>
VOL +/–
GROUP
x
3 Color Info-LED
HOLD
4
Page 5
r
Disassemble the unit in the order as shown below.
MZ-E501
SECTION 3
DISASSEMBLY
Case assy, Holder assySet
Mechanism deck
Note : Follow the disassembly procedure in the numerical order given.
3-1. CASE ASSY, HOLDER ASSY
1
screws (1.4), MI
3
Move it away
from the projection
2
Bracket assyMAIN board
Optical pick-up assy (LCX-4E)
case assy
1
screws (1.4), MI
hold assy
3
from the projection
case (rear)
Move it away
5
Page 6
MZ-E501
y
d
3-2. MECHANISM DECK
6
(CN551)
MOTER FLEXIBLE board
4
1
step screw (MD)
mechanism deck
5
OP FLEXIBLE boar
(CN501)
3-3. BRACKET ASSY
3
2
screw (1.7)
4
bracket (L) assy
claw
3
claw
1
screw (1.7)
2
bracket (R) ass
3
claw
6
Page 7
3-4. MAIN BOARD
g
7
battery case assy
1
screw (1.7)
5
Remove the soldering
2
claw
6
MAIN board
4
ornamental strip
5
Remove the soldering
MZ-E501
3
battery case lid
3-5. OPTICAL PICK-UP ASSY (LCX-4E)
optical pick-up assy (LCX-4E)
1
washer
2
gear (SA)
case (rear)
5
3
screw (MI 1.4)
4
thrust detent sprin
7
Page 8
MZ-E501
SECTION 4
TEST MODE
4-1. GENERAL
• When entered in the TEST MODE, this set provides the Overall
Adjustment mode which allows CD and MO discs to be automatically adjusted. In the Overall Adjustment mode, the system
discriminates between CD and MO discs, performs adjustments
in sequence automatically, and displa ys the faulty location if an y
fault is found. In the Manual mode, selected adjustments can be
performed automatically.
• The attached remote control is used to operate the TEST MODE.
Unless otherwise specified in the text, the key means that on the
remote control.
4-2. SETTING THE TEST MODE
4-2-1. How to set the TEST MODE
To set the TEST MODE, two methods are available.
1 Solder bridge and short TAP601 (TEST) on the main board.
Then turn on the power . Press the x b utton or close the upper
panel.
MAIN BOARD (SIDE B)
Remote control LCD
All on
All off
012 V1.110
Microprocessor
version
display
• Press and hold down X to hold the current display while the key
is being pressed.
4-2-3. How to release the TEST MODE
When method 1 was used:
Turn off the power and open the solder bridge on TAP601 on the
main board.
Note : The solder should be removed clean. The remaining solder
may make a short with the chassis and other part.
When method 2 was used:
Turn off the power.
Note : If electrical adjustment (see page 12) has not been finished
completely, always start in the test mode. (The set cannot
start in normal mode)
TAP601
OPEN : Normal mode
SHORT : Test mode
2 In the normal mode, operate the keys on the set and those on the
remote control rapidly as specified below:
Turn on HOLD switch on the set. Holding down x (STOP)
key on the set, press the keys on the remote control in the
following sequence:
> N t > N t . t . t > N
t . t > N t . t X t X
Note : When you press an incorrect switch by mistake, remove your
hands from the switches and perform all the operations once
again from the very beginning.
4-2-2. Operations when the TEST MODE is set
When the TEST MODE is entered, the system switches to the
display check mode within the TEST MODE. From this mode, the
other Test modes can be accessed.
When the TEST MODE is set, the LCD repeats a cycle of the
following displays:
4-3. TEST MODE STRUCTURE
Test Mode
(Display Check Mode)
+
key
VOL
Manual Mode
x
key
+
key
VOL
–
VOL
key
.
DISPLAY key
DISPLAY key
(Press and hold down about 3 sec)
Terminate key checking or open
the top panel.
–
VOL
or
x
x
>B
x
key
key
key
key
Overall Adjustment Mode
Self-diagnostic Display Mode
key
Sound Skip Check Result Display Mode
Servo Mode
Audio Mode
Power Mode
OP Alignment Mode
Key Check Mode
8
Page 9
MZ-E501
4-4. MANUAL MODE
4-4-1. Outline of the function
The Manual mode is designed to perform adjustments and
operational checks on the set’s operation according to each
individual function.
Usually, no adjustments are made in this mode.
However, the Manual mode is used to clear the memory before
performing automatic adjustments in the Overall Adjustment mode.
4-4-2. How to set the Manual mode
1. Set the TEST MODE and press VOL+ key to set the Manual mode.
Remote control LCD display
000 Manual
2. During each test, press and hold down > N key or .
key for a while to move the optical pickup on the sled outer or
inner perimeter.
3. Each test item is assigned with a three-digit item number. The
100th place is a major item, 10th place is a middle item, and unit
place is a minor item.
+
key : 100th place of mode number
Change Major
Item
> N
VOL
increase
–
key : 100th place of mode number
VOL
decrease
x
keykey
4. During each test mode, the display is changed from one to
another each time DISPLAY key is pressed.
• Address & Adjusted Value Display
LCD display
011C68S5E
mode number
adress
• Jitter Value & Adjusted Value Display
LCD display
adjusted value
011OFEJ5E
mode number
jitter value
• Block Error Value & Adjusted Value Display
LCD display
adjusted value
011063B5E
block error value
mode number
• ADIP Error Value & Adjusted Value Display
LCD display
adjusted value
Change Middle
Item
> N
key
Change Minor
Item
x
+
key : 10th place of mode number
VOL
increase
–
key : 10th place of mode number
VOL
decrease
key
key : Unit place of mode number
> N
increase
.
key : Unit place of mode number
decrease
+
VOL
VOL
key : Up
–
key : Down
Change Adjustment
Value
Write Adjustment
Value
X
key : When adjusted value is changed :
Adjusted value is written.
When adjusted value is not changed :
That item is adjusted automatically.
011072A5E
ADIP error value
mode number
• Focus Drive Voltage Value &
Adjusted Value Display
adjusted value
011000F5E
forcus drive
voltage value
mode number
• Item Title Display
LCD display
adjusted value
011LrefPw 5 E
item title
mode number
Note: In the Power mode, the item title display is only displayed.
5. To terminate the Manual mode and return to the TEST MODE,
press x key.
4-5. OVERALL ADJUSTMENT MODE
adjusted value
4-5-1. Outline of the function
This mode is designed to adjust the servo system automatically by
going through all the adjustment items.
The power adjustment manual setting is performed in this mode also.
Usually, this mode is used to perform automatic adjustments when
servicing the set.
For further information, refer to section 5. ELECTRICAL
ADJUSTMENTS. (See page 12)
9
Page 10
MZ-E501
4-6. SELF-DIAGNOSTIC DISPLAY MODE
4-6-1. Outline of the function
The Self-diagnostic system is used in this set. If an error occurs
during playback, this system detects the fault through the
microprocessor’s mechanism and power control blocks and stores
the cause in EEPROM in a history format.
This history, which can be viewed in the TEST MODE, provides
the means of locating the fault in troubleshooting.
4-6-2. Self-diagnostic mode
1. Set the TEST MODE.
2. With all the LCD display segments blinking on the set, press
DISPLAY key and the Self-diagnostic mode is entered.
0011 Adrs
History code
Error display code
Simplified contents
3. Hereinafter, each time > N key is pressed, the reference
information display changes as follows:
0XX1 # # # #
0XXN # # # #
0XXN1 # # # #
0XXN2 # # # #
0XX R
• Press . key to go back to the previous display.
• Contents of the history codes
History code numberContents
1The first error that occurred.
NThe last error that occurred.
N-1The first error from the last one.
N-2The second error from the last one.
R
T otal recording time ( – – – – is displayed
for MZ-E501)
– – – –
• Description of the error display codes
Contents of fault
No error
Servo system error
TOC error
Power system error
Offset error
4-6-3. Clearing the error display code
After servicing, reset the error display code.
1. Set the TEST MODE.
2. Pressing the DISPLAY key on the remote control activates the
self-diagnosis display mode.
3. To reset the error display code, press X key (2 times)on the
remote control when the code is displayed. (except “R - - - -” )
(All the data on the 1st, N, N-1 and N-2 will be reset)
Display code
00
01
02
03
04
11
12
22
31
32
33
34
No error
Access target address illegally specified
HIGH TEMP
FOCUS ERROR
SPINDLE ERROR
TOC ERROR
READ DATA ERROR
LOWBATT
OFFSET ERROR
FE_ABCD_OFFSET_ERR
TE_OFFSET_ERR
X1_TE_OFFSET_ERR
Meaning of code
Simplified
contents
– – – –
Adrs
Temp
Fcus
Spdl
TOC
Data
LBat
Ofst
ABCD
TE
X1TE
Description
No error
An attempt to access an abnormal address.
HIGH TEMP
Focus off-center.
Abnormal rotation of disc
Faulty TOC contents
Data could not be read at SYNC
Instantaneous interruption detected.
Offset error
FE ABCD Offset error
TE Offset error
X1 TE Offset error
10
Page 11
MZ-E501
4-7. Sound Skip Check Result Display Mode
This set can display and check the error count occurring during
play.
• Setting method of Sound Skip Check Result Display Mode
1. Setting the test mode.
2. Pressing the > N key activates the sound skip check result
display mode where the LCD displays as shown below.
LCD display
000P**R##
Total of record system
error count
Total of play system error count
3. When > N key is pressed, the total of error count is
displayed on the LCD, and each time the > N key is pressed,
the error count descents one by one as shown below . Also, when
. key is pressed, the error count ascends one by one.
000 P**R00
000 EIB **
000 Stat**
4-8. KEY CHECK MODE
4-8-1. Outline of the function
This mode is used to check to make sure that each of the keys
(including the slide switch) on the set operates normally .(The 1 kHz
signal is outputted from the L and R channels of head phones)
4-8-2. Setting the Key Check mode
1. Set the TEST MODE. Press and hold down DISPLAY key (for
more than 3 sec) to set the Key Check mode.
LCD display
000 0F
2. When each key on the set and on remote control is pressed, its
name is displayed on the LCD. (The operated position is
displayed for 4 sec after the slide switch is operated. If any other
key is pressed during this display , the LCD switches to its name
display)
Example: When > N key on the set is pressed:
LCD display
000 FF 0F
Example: When > N key on the remote control is pressed:
LCD display
000 Adrs**
000 BEmp**
000 ######
P**R00 : Total of play system error and record system error count
** : Sound skip check items counter (hexadecimal)
##### : 6-digit address (hexadecimal) where a sound skipped last
Error code
Cause of error
Playback
4. Press the x key to terminate the sound skip check result display
mode and to return to the test mode. (Display check mode)
EIB
Stat
Adrs
BEmp
Description of error
Sound error correction error
Decorder status error
Cannot access the address
Buffer becomes empty
000 rPLAY XX
XX: AD v alue of the remote control key (he xadecimal 00 to FF)
3. When all the keys on the set and on the remote control are
considered as OK, the following displays are shown for 2 sec.
(The key pressed to enter the Key Check mode has been check ed
even if it is not pressed in this mode)
Example: When the keys on the set are considered as OK:
LCD display
888 SET OK OF
Example: When the keys on the remote control are considered
as OK:
LCD display
888 RMC OK OX
4. When all the key have been checked or when the top panel is
opened during this checking, the system terminates the Key
Check mode and return to the TEST MODE.
11
Page 12
MZ-E501
SECTION 5
ELECTRICAL ADJUSTMENTS
5-1. GENERAL
In this set, CD and MO discs can be automatically adjusted by setting
the Overall Adjustment mode within the TEST MODE,
Before performing these automatic adjustments, it is necessary to
clear the memory and adjust the power in the Manual mode.
5-2. NOTES FOR ADJUSTMENT
5-2-1. Jigs
• CD discTDYS-1 (part code: 4-963-646-01)
• MO discPTDM-1 (part code: J-2501-054-A)
or commercially available MO disc (recorded)
• Digital voltmeter
5-2-2. Adjustment sequence
The adjustments should be always performed in the following
sequence:
1 Reset NV (Clear the memory)
2 Manual power adjustments
3 Electrical offset adjustments
(Do not enter the disc)
4 Overall CD adjustments
5 Overall MO adjustments
Manual mode
Overall adjustment mode
5-4. MANUAL POWER ADJUSTMENTS
5-4-1. Adjustment sequence
The adjustments should be always performed in the following
sequence:
1 Vc PWM Duty (L) adjustment (item No.:762)
r
2 Vc PWM Duty (H) adjustment (item No.:763)
r
3 VLL PWM Duty adjustment (item No.:764)
5-4-2. Vc PWM Duty (L) adjustment method
1. Confirm that the power voltage is at 1.5 V DC.
2. Set the TEST MODE.
3. To set the overall adjustment mode, press VOL– key.
LCD display
000 Assy 00
4. Press PLAY MODE key, and item No. will change to 762.
LCD display
762 VclPWM XX
6 RESUME clear
5-2-3. Power
The power is supplied with 1.5 V DC from the battery case.
Manual mode
5-3. RESET NV
5-3-1. How to reset NV
1. Set the TEST MODE.
2. Set the Manual mode and set the item No. 021, Reset NV.
LCD display
021 Res NV CC
3. Press X key on the remote control.
LCD display
021 Res OK?
4. Press X key on the remote control again.
LCD display
021 Res ***
5. Connect a digital voltmeter to TP901 (VC) on the main board
and adjust VOL+ key (voltage up) and VOL– key (voltage
down) on the remote control.
Adjustment value:2.36V
Standard value:2.35 to 2.365V
MAIN BOARD (SIDE B)
digital voltmeter
TP901 (VC)
6. Press X key to write the adjustment value. Item No.will change
to 763.
After reset is completed.
021Reset!
5. Press x key to terminate the Manual mode and return to the
TEST MODE.
12
Page 13
MZ-E501
5-4-3. Vc PWM Duty (H) adjustment method
1. Set the Manual mode and set the item No. to 763.
LCD display
763 VchPWM XX
2. Connect a digital voltmeter to TP901(VC) on the main board
and adjust VOL+ key and VOL– key on the remote control.
Adjustment value:2.75V
Standard value:2.74 to 2.755V
MAIN BOARD (SIDE B)
digital voltmeter
TP901 (VC)
3. Press X key to write the adjustment value.
The adjustment completion display appears as follows.
LCD display
000 ADJ OK
5-4-5.Electrical offset adjustment method
Note: Doing adjustment by the state that a disc does not enter.
1. Confirm the power voltage is 1.5V.
2. Set to the test mode.
3. Press the VOL– key activates the overall adjustment mode.
LCD display
000 Assy11
4. Press the DISPLAY key.
LCD display
030 Ofst**
5. If result of electrical offset adjustment is OK,the following display
appears.
LCD display
030 OfstOK
3. Press X key to write the adjustment value.(Item No. will change
to 764)
5-4-4. VLL PWM Duty adjustment method
1. Set the Manual mode and set the item No. to 764.
LCD display
764 Vl PWM XX
2. Connect a digital voltmeter to TP904 (VL) on the main board
and adjust VOL+ key and VOL– key on the remote control.
Adjustment value:2.23V
Standard value:2.22 to 2.235V
MAIN BOARD (SIDE B)
digital voltmeter
TP904 (VL)
5-5. OVERALL ADJUSTMENT MODE
5-5-1. Overall adjustment mode structure
TEST MODE
(Display Check Mode)
VOL – key
Overall Adjustment
Title Display(ASSY**)
.
key
> N
key
Note: The overall adjustments should be always performed in the
sequence of CD t MO adjustments.
5-5-2. Overall CD and MO adjustment method
1. Set the TEST MODE and press VOL– key to set the Overall
Adjustment mode.
LCD display
CD overall
Adjustment
> N
MO overall
Adjustment
x
key
x
key
key
000Assy11
2. Insert CD disc in the set, and press . key to set the Overall
CD Adjustment mode.
Automatic adjustments are made.
LCD display
XXX CD RUN
XXX: Item No. for which an adjustment is being executed.
13
Page 14
MZ-E501
3. If NG in the overall CD adjustments, return to Reset NV and
perform from the electrical offset adjustment again.
LCD display
000 XXX NG
XXX: NG item No.
4. If OK through the overall CD adjustments, then perform overall
MO adjustments.
LCD display
XXX CD OK
5. Insert MO disc in the set, and press > N key to set the
Overall MO Adjustment mode. Automatic adjustments are made.
LCD display
XXX MO RUN
XXX: Item No. for which an adjustment is being executed.
6. If NG in the overall MO adjustments, return to Reset NV and
perform the adjustment again.
LCD display
000 XXX NG
XXX: NG item No.
7. If OK through the overall MO adjustments, press x key to
return to the TEST MODE and terminate the Overall Adjustment
mode.
LCD display
000 MO OK
5-5-3.Resume clear method
1. Setting the test mode.
2. Set the Manual mode and set the item No.043(RESUME Clear).
LCD display
Contents
Tracking servo ON
ABCD gain adjustment
KF gain adjustment
RF gain adjustment
FCS gain adjustment
TRK gain adjustment
READ GRV adjustment 1
R GRV setting • servo OFF
SLED move to outside
Focus servo OFF
TON offset adjustment
TE gain adjustment
TON offset adjustment
TEIN offset adjustment
TWPP offset adjustment
Tracking servo ON
TWPP offset adjustment
ABCD gain adjustment
KF gain adjustment
ADIP BPF fo adjustment
FCS gain adjustment
TRK gain adjustment
TWPP gain adjustment
TWPP offset adjustment 1
TWPP offset adjustment 2
TWPP OP offset adjustment
RF gain adjustment
R GRV setting • Servo OFF
15
Page 16
MZ-E501
SECTION 6
DIAGRAMS
Note on Printed Wiring Boards: MAIN SECTION
• X : parts extracted from the component side.
•: 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.
• Main boards is four-layer pritnted board.
However, the patterns of layer 2 and 3 have not been
included in this diagrams.
* Replacement of IC601 used in this set requires a special
tool.
• Lead Layouts
Lead layout of
conventional IC
Note on Schematic Diagram: MAIN SECTION
• 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.
f
•
Note: The components identified by mark 0 or dotted
: internal component.
line with mark 0 are critical for safety.
Replace only with part number specified.
CSP (chip size package)
4
W or less unless otherwise
surface
r
WAVEFORMS
IC501 1 TE
1
IC501 ed (RF OUT)
2
IC501 rs (FE)
3
X601 (OSCO)
4
22.1 ns
Approx.
12 mVp-p
Approx.
1.2 Vp-p
Approx.
10 mVp-p
2.7 V
•: B+ Line.
• Power voltage is dc 1.5V and fed with regulated dc power
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.
F: Audio (Analog)
J: Audio (Digital)
* Replacement of IC601 used in this set requires a special
tool.
• The voltage and waveform of CSP (chip size package)
cannot be measured, because its lead layout is different
from that of conventional IC.
16
Page 17
6-1. BLOCK DIAGRAM
MZ-E501
Jx Jy
Jx
Ix
Ix Iy
a
cd
b
F
PD
OPTICAL PICK-UP BLOCK
Iy
Ix
Jx
Jy
A
B
C
D
MINIDISC
(LCX-4E)
LD
S0
S1
AVCC
TRACKING
COIL
FOCUS
COIL
MINIDISC
MECHANISM BLOCK
M902
(SLED)
M901
(SPINDLE)
LD-A
LD-K
AVCC
MAIN BOARD
CN501
VREF
6
Iy
9
Ix
10
Jx
14
Jy
15
A
16
B
17
C
7
D
8
MON
18
VIF
5
LASER
AUTO POWER
12
CONTROL
Q501
13
S0
S1
SLED1+
SLED1-
SLED2+
SLED2-
CLVU
CLVV
CLVW
11
19
20
2
1
4
3
5
7
6
8
1
2
3
4
VL
TRK+
TRK-
FCS+
FCS-
CN551
UNREG
RF AMP,FOCUS/TRACKING ERROR AMP
IC501
VREF
4
Iy
8
Ix
9
Jx
10
11
12
14
5
6
13
7
18
22
40
20
RF AMP,
Jy
FOCUS
A
ERROR,
B
TRACKING
C
ERROR
D
A-C
TPP/WPP
D-C
PD-I
DVDD
AVCC
PD-O
APC
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
SERIAL
S-MONITOR
PEAK
/BOTM
I/F
RF OUT
PEAK
BOTM
ABCD
ADIP IN
ADIP
PD-NI
OFTRK
XRST
SBUS
SCK
S MON
33
29
28
41
FE
42
TE
1
44
21
19
31
VC
26
25
23
24
43
IC551
42
41
40
39
33
PRE
3224
DRIVER
35
10
719
PRE
DRIVER
8
14
PRE
15
DRIVER
12
29
PRE
31
DRIVER
54
51
52
53
48
45
PRE
46
DRIVER
49
44
HI-BRIDGE
CONTROL
HI-BRIDGE
CONTROL
HI-BRIDGE
CONTROL
HI-BRIDGE
CONTROL
3 PHASE
CONTROL
BIAS
HEADPHONE AMP
IC301
29
RFI
37
44
PEAK
BOTM
45
ABCD
46
FE
47
TE
56
ADFG
74
APCREF
78
49
VC
12
VREF MON
217
OFTRK
221
XRF RST
SSB DATA
160
161
SSB CLK
9
S MON
194
PD S0
195
EEPROM
PDS1
IC801
XCS
4DI3DO2SK1
38
37
25
TAP601
(TEST)
18
16
17
20
26
27
1
56
55
2
3
4
5
6
219
XCS NV
181
SCK0
S00
180
SI0
179
SLD1MON
100
SLD2MON
101
TFDR
81
TRDR
88
XTEST
3
FFDR
82
FRDR
80
98
SLDV
SRDR
96
SFDR
97
SLDW
99
SLCW
102
XCS NVSI0
93
SPCU
SCK0
94
SPCV
S00
SPCW
95
90
SPD W
89
SPD V
87
SPD U
88
SPDL PWM
220
XRST MTR DRV
DIGITAL SIGNAL PROCESSOR,
DIGITAL SERVO SIGNAL PROCESSOR,
EFM/ACIRC ENCODER/DECODER,
SHOCK PROOF MEMORY CONTROLLER,
16M BIT D-RAM, SYSTEM CONTROL
IC601
AOUT L
AOUT R
BEEP
XHP STB
MUTE
RMC DTCK
REC KEY
SET KEY2
TSB MST VDD
OPR LED R PWM
OPR LED G PWM
HOLD SW
XAVLS
SET KEY 1
WK DET
HALF LOCK SW
DIFVDD0
DIFVDD1
TSB SLV VDD
MIFVDD0
MIFVDD1
MIFVDD2
TSB SLV CHK
MIFVDD3
OSCI
OSCO
RMC KEY
VB MON
VC PWM
VL PWM
FS4
VLON
SLEEP
FFCLR
XRST
AVDD
AVD1
AVD2
VDI00
VDI01
VDI02
MCU VDD0
DSP VDD0
DSP VDD1
MCU VDD1
DSP VDD2
DSP VDD3
MCU VDD2
MCU VDD3
30
UNREG
183
240
218
142
RMC VDD
18
14
141
167
163
227
224
13
17
19
VIF
76
103
143
154
176
196
210
241
24
25
20
10
165
164
86
234
235
236
8
21
23
119
139
151
231
6
59
73
84
91
113
153
222
UNREG
X601
45.1584MHz
AVDD
DVDD
222
RCH
21
IN B
+B
1
VCC
20
VIF
15
18
STB
MUTE
17
S809
(OPEN/CLOSE
DETECT)
DVDD
• Signal path
J : Audio (Digital)
F : Audio (Analog)
BEEP
GROUP
POWER SUPPLY
VD
5
XWK4
2
XWK1
7
VRMC
4
XWK3
6
VSTB
3
XWK2
26
INM1
RF1
27
23
RF2
22
INM2
56
CLK
1
VLON
55
SLEEP
54
FFCLR
46
XRST
36
VC
34
VC
45
VC2
OUT B
BEEP OUT A
BEEP OUT B
VREF IN
S806
IC901
VC OUT
S805
VOL
VLO
VCO
VIF
VA
VG
LG
VL
VL
VB
4
RCH
24
23
REFERENCE
VOLTAGE
13
SWITCHING
Q301
D801
(INFO)
LED SWITCH
ON
OFF
S803
S804
.
VOL
-
+
-
VL
1044
VC
35
VIF
42
AVDD
41
19
D903
18
L906
9
11
16
L2
L2
12
50
32
L1
28
L1
33
D902
L902
L901
D901
Q801
>
VDD
S802
S808
HOLD
N
VG
UNREG
RCH
RGND
RMC
VDD
S801
x
LCH
KEY
DATA
J301
i
RECHAGEABLE
BATTERY
NC-6WM
1PC, 1.2V 600mAh
DRY BATTERY
SIZE "AA"
(IEC DESIGNATION LR6)
1PC, 1.5V
• RCH is omitted due to same as LCH
1717
Page 18
MZ-E501
6-2. PRINTED WIRING BOARD – MAIN SECTION (SIDE A) –
1TEOTracking error signal output to the system controller (IC601)
2REXTIConnect terminal to the external resistor for ADIP amp control
3WPPLPFIConnect terminal to the external capacitor for TPP/WPP low-pass filter
4VREFOReference voltage output terminal (+1.1V)
5CISignal (C) input from the optical pickup detector
6DISignal (D) input from the optical pickup detector
7D-CISignal (D) input from the optical pickup detector (AC input)
8IYII-V converted RF signal (IY) input from the optical pickup detector
9IXII-V converted RF signal (IX) input from the optical pickup detector
10JXII-V converted RF signal (JX) input from the optical pickup detector
11JYII-V converted RF signal (JY) input from the optical pickup detector
12AISignal (A) input from the optical pickup detector
13A-CISignal (A) input from the optical pickup detector (AC input)
14BISignal (B) input from the optical pickup detector
15TON-CIConnect terminal to the external capacitor for TON hold
16CIGI
17CDNI
18PD-IILight amount monitor input terminal (invert input)
19PD-NIILight amount monitor input terminal (non-invert input)
20PD-OOLight amount monitor output terminal
21ADIPOADIP duplex FM signal (66.15kHz ± 3kHz) output to the system controller (IC601)
22DVDDIPower supply terminal (+1.9V) (digital system)
23SBUSI/OSSB serial data input/output with the system controller (IC601)
24SCKISSB serial clock signal input from the system controller (IC601)
25XRSTIReset signal input from the system controller (IC601) “L”: reset
26OFTRKIOff track signal input from the system controller (IC601)
27DGNDIGround terminal (digital system)
28BOTMO
29PEAKO
30VREFIConnect terminal to the external capacitor for the internal reference voltage
31VCOMiddle point voltage (+1.2V) generation output terminal
32CCSL2IConnect terminal to the external capacitor for TPP/WPP low-pass filter (not used in this set)
33RF OUTOPlayback EFM RF signal output to the system controller (IC601)
34AGNDIGround terminal (analog system)
35~37EQ, LP, PSIConnect terminal to the external capacitor for the RF equalizer
39, 40OFC2, OFC-1IConnect terminal to the external capacitor for RF AC coupling
41ABCDO Light amount signal (ABCD) output to the system controller (IC601)
42FEOFocus error signal output to the system controller (IC601)
43S-MONOServo signal monitor output to the system controller (IC601)
44ADIP-INIADIP duplex FM signal (66.15kHz ± 3kHz) input terminal, 3 times speed
Connect terminal to the external capacitor for the low-pass filter of NPP divider
denominator (Not used in this set)
Connect terminal to the external capacitor for the low-pass filter of CSL divider
denominator (Not used in this set)
Bottom hold signal output of the light amount signal (RF/ABCD) to the system controller
(IC 601)
Peak hold signal output of the light amount signal (RF/ABCD) to the system controller
(IC 601)
MZ-E501
25
Page 26
MZ-E501
• IC601 CXD2671-205GA (SYSTEM CONTROL)
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12VREF MONIClear reference voltage monitor
13
14
15VL MONIVL voltage monitor
16
17
18
19
20
21
22AVSS
23VDIOSC
24
25
26
27
28
29
30
31
32
33
34ASYIIPlayback EFM comparison slice level input
35
36
37
38
39PCOOPhase comparison output for the playback EFM system master PLL
40
41
42FILOOFilter output for the playback EFM system master PLL
43CLTVIInternal VCO control voltage input for the playback EFM system master PLL
44PEAK
45BOTM
46ABCDILight amount signal input
Pin Name
OPR_LED_G_H
OPR_LED_G_L
XTEST
OPR_LED_R_H
OPR_LED_R_L
MCUVDD0
MIFVSS3
XRST
S MON
VB MON
SET KEY 1
SET KEY 2
HIDC MON
WK DET
REC KEY
HALF LOCK SW
RMC KEY
AVDD
OSCI
OSCO
VSIOSC
DAVDD
VREFLBuilt-in DAC VREF (L-ch)
AOUTL
AOUTR
VREFR
DA VSS
ASYO
AVD1
BIAS
RFI
AVS1
PDO
FILI
I/ODescription
O
High intensity green LED control (open)
O
Low intensity green LED control (open)
I
Input terminal for the test mode detection
O
High intensity red LED control (open)
O
Low intensity red LED control (open)
—
Power supply (for microcomputer block)
—
Ground (for microcomputer I/F)
I
System reset terminal
I
Servo signal monitor
I
Voltage monitor of UNREG power supply
I
Not used (connected to ground)CHG MON
I
Set key detection 1
Not used (connected to RMC VDD)
I
I
Not used (connected to ground)
I
Set KEY WAKE detection
I
Not used (connected to RMC VDD)
I
Signal input for OPEN SW detection
I
Remote control key detection
—
Power supply (for the analog circuit block)
—
Ground (for the analog circuit block)
—
Power supply (for OSC cell)
I
Input to the X’tal oscillator circuit
O
Output from the X’tal oscillator circuit
—
Ground (for OSC cell)
—
Built-in DAC VCC
—
O
Built-in DAC (L-ch) output
O
Built-in DAC (R-ch) output
I
Built-in DAC VREF (R-ch)
—
Ground (for the built-in DAC)
O
Playback EFM duplex signal output
—
AVDD
I
Bias input for the playback EFM comparison
I
Playback EFM RF signal input
—
AVSS
O
Phase comparison output for the analog PLL
I
Filter input for the playback EFM system master PLL
I
Peak hold signal input of the light amount signal
I
Bottom hold signal input of the light amount signal
26
Page 27
MZ-E501
Pin No.
47FEIFocus error signal input
48AUX1ISupport signal input (A/D input)
49VCIMiddle point voltage input
50ADIOONot used (open)
51ADRTIA/D converter the upper limit voltage input
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
Pin Name
AVD2
AVS2
ADRB
SE
TE
DCHG
APC
DSPVDD0
DSPVSS0
XTSL
DIN1
DOUT
PWMLPONot used (open)
PWMLN
PWMRPONot used (open)
DADT/PWMRNONot used (open)
ADDT
LRCKONot used (open)
XBCKONot used (open)
FS256
MVCI
DSPVDD1
ADFG
F0CNT
DIFVDD0
DIFVSS0
APCREFO
LDDRONot used (open)
TRDROTracking servo drive PWM signal output (–)
TFDROTracking servo drive PWM signal output (+)
FFDROFocus servo drive PWM signal output (–)
FRDROFocus servo drive PWM signal output (+)
MCUVDD1
FGININot used (open)
FS4O176.4kHz clock signal output
SPRD/SPDU/
RTG0
SPFD/SPVS/
PWM3
SPDV/RTG1OBrushless spindle motor 3-phase drive logic output (V)/RTG output 1
SPDW/RTG2OBrushless spindle motor 3-phase drive logic output (W)/RTG output 2
I/ODescription
—
AVDD
—
AVSS
I
A/D converter the lower limit voltage input
I
Sled error signal input
I
Tracking error signal input
—
Connecting analog power supply of the low impedance
I
Error signal input for the laser digital APC
—
Power supply (for DSP block)
—
Ground (for DSP block)
X’tal oscillation frequency selection
I
I
Not used (connected to ground)
O
Not used (open)
O
Not used (open)
I
Not used (connected to ground)
O
Not used (open)
I
Not used (connected to ground)
—
Power supply (for DSP block)
I
ADIP duplex FM signal (20.05±1KHz) input
O
Not used (open)
—
Power supply (for DSP I/F)
—
Ground (for DSP I/F)
Output to the reference PWM for the laser APC
—
Power supply (for the microcomputer block)
Spindle servo drive output (PWM– or inertia)/Brushless spindle motor 3-phase drive logic
O
output (U)/RTG output 0
Spindle servo drive output (PWM+ or PWM absolute value)/Brushless spindle motor absolute
O
value PWM output/PWM3
27
Page 28
MZ-E501
Pin No.
91
92
93SPCUIBrushless spindle motor drive comparison signal input (U)
94SPCVIBrushless spindle motor drive comparison signal input (V)
95SPCWIBrushless spindle motor drive comparison signal input (W)
96SRDR/SL1FOSled servo drive PWM signal output (–)
97SFDR/SLVFOSled servo drive PWM signal output (+)
98SLDVO
156, 157TEST1, TEST0ITerminal 1, 0 for the main test
158EVAIEVA/FLASH chip discrimination terminal
159OPR LEDOOperation LED control (Not used in this set)
160SSB DATAI/OInput/output of SSB serial data
161SSB CLK—SSB serial clock
162MCUVSS0
163OPR_LED_R_PWMOOperation LED (R) control PWM
164VL PWM —
165VC PWM—PWM for the system power supply voltage control
166
167
168
169CLK SELONot used (open)
170
171GND SWONot used (open)
172SET CODE0OSet code 0
173SET CODE1OSet code 1
174SET CODE2O
175SET CODE3O
176MIFVDD1
177MIFVSS1
178AOUT SELOHP/LINE changeover signal output Not used (open)
179SI0
180SO0O
181SCK0O
182XGUM ONI
183BEEP OBeep sound output
184NC
185VD. SELO
186XMUTEO
187LCD_RST_AUXO
188-189NCONot used (open)
190X PATCHI
191OPT DETINot used (open)
192XJACK DETINot used (open)
193XMIC DETINot used (open)
194, 195PD S0, PD S1OPD IC mode changeover 0, 1
196MIFVDD2
197 to
199
200, 201HD CON 1, 2ONot used (open)
202NCONot used (open)
203XCS ADAONot used (open)
204XPD ADAONot used (open)
205XCS LCDONot used (open)
Pin Name
SPDL_AUX_PWM
OPR_LED_G_PWM
NCONot used (open)
OPEN CLOSE
SW
MODE1 to 3O
I/ODescription
—
Ground (for the microcomputer block)
PWM for the laser power supply voltage control
OSpindle auxiliary control PWM
OOperation LED (G) control PWM
Not used (open)
I
Set code 2
Set code 3
—
Power supply (for the microcomputer I/F block)
—
Ground (for the microcomputer I/F block)
I
Serial data input (CH0)
Serial data output (CH0)
Serial clock signal output (CH0)
Not used (open)
—
Not used (open)
Not used (open)
Not used (open)
Not used (open)
Not used (connected to ground)
—
Power supply (for the microcomputer I/F block)
Not used (open)
29
Page 30
MZ-E501
Pin No.
206LCD STBONot used (open)
207LCD RSTONot used (open)
208REC LEDONot used (open)
209LD ONONot used (open)
210TSB SLV CHKITSB slave check
211
212
213MCUVSS1
214CAV CLV SWONot used (open)
215XOPT CTLONot used (open)
216CS RTCONot used (open)
217OFTRKIOff track signal input
218MUTEOAnalog mute “H”: muting ON
219XCS NVONV RAM chip select
227XHOLD SWIHOLD switch detection
228SYNC RECINot used (open)
229TSB_SSB_CTLOTSB/SSB switching
230PROTECTI
231FLASHVDD
232FLASHVSS
233SLD MONISled monitor
234VLONOLaser power supply control
235SLEEPOSLEEP request
236FFCLROInput latch output for the start signal
237CHG GAINONot used (open)
238CHGONot used (open)
239
240
241MIFVDD3
242MIFVSS2
243TEST2ONot used (open)
244NC
Pin Name
K-TAI_MONINot used (open)
K-TAI_SWINot used (open)
XRST MTR
DRV
SOUND 1, 2
TUN REG ONONot used (open)
XHP STBYOHP Amp power supply control
I/ODescription
—
Ground (for the microcomputer block)
ONADESHIKO2 reset
—
Power supply (for the microcomputer block)
I
Not used (open)
Not used (open)
—
Power supply for FLASH
—
Ground terminal for FLASH
—
Power supply (for the microcomputer I/F block)
—
Ground (for the microcomputer I/F block)
—
Not used (open)
30
Page 31
NOTE:
• -XX, -X mean standardized parts, so they may
have some differences from the original one.
• Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering these
items.
• The mechanical parts with no reference number
in the exploded views are not supplied.
7-1. MAIN SECTION
6
not
supplied
SECTION 7
EXPLODED VIEWS
• Hardware (# mark) list and accessories and
packing materials are given in the last of this
parts list.
• Color Indication of Appearance Parts Example:
KNOB, BALANCE (WHITE) . . . (RED)
Parts of Color Cabinet’s Color
8
not
supplied
6
↑ ↑
18
The components identified by mark 0 or
dotted line with mark 0 are critical for safety.
Replace only with part number specified.
14X-3380-733-1 CASE ASSY, BATTERY
154-989-078-01 SPRING (OPEN), TENSION
16X-3380-896-1 CASE ASSY (SILVER)
16X-3380-897-1 CASE ASSY (PINK)
16X-3380-898-1 CASE ASSY (BLUE)
53-232-179-31 STRIP, ORNAMENTAL (YELLOW)
64-218-233-09 SCREW (1.4), MI
7X-3380-870-1 HOLDER ASSY (S)
8X-3380-740-1 LID ASSY, UPPER (SILVER)
8X-3380-741-1 LID ASSY, UPPER (PINK)
8X-3380-742-1 LID ASSY, UPPER (BLUE)
8X-3380-743-1 LID ASSY, UPPER (YELLOW)
16X-3380-899-1 CASE ASSY (YELLOW)
173-232-194-01 PLATE, ELECTROSTATIC
183-232-178-01 BUTTON (B), CONTROL
194-225-074-01 TERMINAL BOARD
203-241-062-01 SHEET (BATT CASE)
R5151-208-895-11 METAL CHIP2.2K0.5%1/16W
R5161-208-895-11 METAL CHIP2.2K0.5%1/16W
R5171-208-895-11 METAL CHIP2.2K0.5%1/16W
R5191-218-977-11 RES-CHIP100K5%1/16W
R5211-242-967-11 RES-CHIP15%1/16W
R9101-218-965-11 RES-CHIP10K5%1/16W
R9201-208-911-11 METAL CHIP10K0.5%1/16W
R9211-218-979-11 RES-CHIP150K5%1/16W
R9461-208-919-11 METAL CHIP22K0.5%1/16W
R9481-208-939-11 METAL CHIP150K0.5%1/16W
R9501-218-953-11 RES-CHIP1K5%1/16W
(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.
• Main boards is four-layer pritnted board.
However, the patterns of layer 2 and 3 have not been
included in this diagrams.
* Replacement of IC601 used in this set requires a special tool.
• Lead Layouts
Lead layout of
conventional IC
CSP (chip size package)
surface
44
Page 41
2-3. PRINTED WIRING BOARD – MAIN SECTION (SIDE B) –
MZ-E501
A
B
C
D
E
12
MAIN BOARD
J301
COM
R
RGND
R-KEY
R-DATA
34567891011121314
TO
OPTICAL
PICK-UP
BLOCK
(LCX-4E)
IC 801
• Semiconductor
Location
Ref. No. Location
D901F-3
IC551H-6
IC801C-12
IC903H-5
Q801D-4
(SIDE B)
L
TO MOTOR FLEXIBLE BOARD
(M901 : SPINDLE MOTOR)
(M902 : SLED MOTOR)
3
5
4
1
F
G
H
I
S809
(OPEN/CLOSE
DETECT SWITCH)
RVDD
IC 903
IC 551
RECHARGEABLE BATTERY
NC-6WM
1PC, 1.2V 600mAh
1-681-868-
12
(12)
Note on Printed Wiring Boards
• X : parts extracted from the component side.
•: 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.
• Main boards is four-layer pritnted board.
However, the patterns of layer 2 and 3 have not been
included in this diagrams.
55
Page 42
MZ-E501
2-4. SCHEMATIC DIAGRAM – MAIN SECTION (1/3) –
• See page 11, 12 for IC Pin Function Description.
r
WAVEFORMS
1234
Approx.
12 mVp-p
Approx.
1.2 Vp-p
Approx.
10 mVp-p
X601 (OSCO)IC501 rs (FE) IC501 ed (RF OUT)IC501 1 TE
22.1 ns
2.7 V
Note on Schematic Diagram
• 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
otherwise specified.
f
•
: internal component.
1
4
/
W or less unless
•: B+ Line.
• Power voltage is dc 1.5V and fed with regulated
dc power supply from battery terminal.
• Voltages and waveforms are dc with respect to
ground under no-signal conditions.
no mark : PLAY
66
• Voltages are taken with a VOM (Input imped-
ance 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.
F: Audio (Analog)
J: Audio (Digital)
* Replacement of IC601 used in this set requires
a special tool.
• The voltage and waveform of CSP (chip size
package) cannot be measured, because its lead
layout is different from that of conventional IC.
Page 43
MZ-E501
2-5. SCHEMATIC DIAGRAM – MAIN SECTION (2/3) –
• See page 9, 10 for IC Block Diagrams.
IC B/D
IC B/D
Note on Schematic Diagram
• 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
specified.
•: B+ Line.
• Power voltage is dc 1.5V and fed with regulated dc power
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.
1
4
/
W or less unless otherwise
77
Page 44
MZ-E501
2-6. SCHEMATIC DIAGRAM – MAIN SECTION (3/3) –
• See page 9 for IC Block Diagrams.
IC B/D
Note on Schematic Diagram
• 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
specified.
• C : panel designation.
•: B+ Line.
• Power voltage is dc 1.5V and fed with regulated dc power
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.
1TEOTracking error signal output to the system controller (IC601)
2REXTIConnect terminal to the external resistor for ADIP amp control
3WPPLPFIConnect terminal to the external capacitor for TPP/WPP low-pass filter
4VREFOReference voltage output terminal (+1.1V)
5CISignal (C) input from the optical pick-up detector
6DISignal (D) input from the optical pick-up detector
7D-CISignal (D) input from the optical pick-up detector (AC input)
8IYII-V converted RF signal (IY) input from the optical pick-up detector
9IXII-V converted RF signal (IX) input from the optical pick-up detector
10JXII-V converted RF signal (JX) input from the optical pick-up detector
11JYII-V converted RF signal (JY) input from the optical pick-up detector
12AISignal (A) input from the optical pick-up detector
13A-CISignal (A) input from the optical pick-up detector (AC input)
14BISignal (B) input from the optical pick-up detector
15TON-CIConnect terminal to the external capacitor for TON hold
16CIGI
17CDNI
18PD-IILight amount monitor input terminal (invert input)
19PD-NIILight amount monitor input terminal (non-invert input)
20PD-OOLight amount monitor output terminal
21ADIPOADIP duplex FM signal (66.15kHz ± 3kHz) output to the system controller (IC601)
22DVDDPower supply terminal (+1.9V) (digital system)
23SBUSI/OSSB serial data input/output with the system controller (IC601)
24SCKISSB serial clock signal input from the system controller (IC601)
25XRSTIReset signal input from the system controller (IC601) “L”: reset
26OFTRKIOff track signal input from the system controller (IC601)
27DGNDIGround terminal (digital system)
28BOTMO
29PEAKO
30VREFIConnect terminal to the external capacitor for the internal reference voltage
31VCMiddle point voltage (+1.2V) generation output terminal
32CCSL2IConnect terminal to the external capacitor for TPP/WPP low-pass filter (not used in this set)
33RF OUTOPlayback EFM RF signal output to the system controller (IC601)
34AGNDIGround terminal (analog system)
35~37EQ, LP, PSIConnect terminal to the external capacitor for the RF equalizer
39, 40OFC2, OFC-1IConnect terminal to the external capacitor for RF AC coupling
41ABCDO Light amount signal (ABCD) output to the system controller (IC601)
42FEOFocus error signal output to the system controller (IC601)
43S-MONOServo signal monitor output to the system controller (IC601)
44ADIP-INIADIP duplex FM signal (66.15kHz ± 3kHz) input terminal, 3 times speed
Connect terminal to the external capacitor for the low-pass filter of NPP divider
denominator (Not used in this set)
Connect terminal to the external capacitor for the low-pass filter of CSL divider
denominator (Not used in this set)
—
Bottom hold signal output of the light amount signal (RF/ABCD) to the system controller
(IC 601)
Peak hold signal output of the light amount signal (RF/ABCD) to the system controller
(IC 601)
—
—
MZ-E501
11
Page 48
MZ-E501
• IC601 CXD2671-207GA (SYSTEM CONTROL)
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12VREF MONIClear reference voltage monitor
13
14
15VL MONIVL voltage monitor
16
17
18
19
20
21
22AVSS
23VDIOSC
24
25
26
27
28
29
30
31
32
33
34ASYIIPlayback EFM comparison slice level input
35
36
37
38
39PCOOPhase comparison output for the playback EFM system master PLL
40
41
42FILOOFilter output for the playback EFM system master PLL
43CLTVIInternal VCO control voltage input for the playback EFM system master PLL
44PEAK
45BOTM
46ABCDILight amount signal input
Pin Name
OPR_LED_G_H
OPR_LED_G_L
XTEST
OPR_LED_R_H
OPR_LED_R_L
MCUVDD0
MIFVSS3
XRST
S MON
VB MON
SET KEY 1
SET KEY 2
HIDC MON
WK DET
REC KEY
HALF LOCK SW
RMC KEY
AVDD
OSCI
OSCO
VSIOSC
DAVDD
VREFLBuilt-in DAC VREF (L-ch)
AOUTL
AOUTR
VREFR
DA VSS
ASYO
AVD1
BIAS
RFI
AVS1
PDO
FILI
I/ODescription
O
High intensity green LED control (open)
O
Low intensity green LED control (open)
I
Input terminal for the test mode detection
O
High intensity red LED control (open)
O
Low intensity red LED control (open)
—
Power supply (for microcomputer block)
—
Ground (for microcomputer I/F)
I
System reset terminal
I
Servo signal monitor
I
Voltage monitor of UNREG power supply
I
Not used (connected to ground)CHG MON
I
Set key detection 1
Not used (connected to RMC VDD)
I
I
Not used (connected to ground)
I
Set KEY WAKE detection
I
Not used (connected to RMC VDD)
I
Signal input for OPEN SW detection
I
Remote control key detection
—
Power supply (for the analog circuit block)
—
Ground (for the analog circuit block)
—
Power supply (for OSC cell)
I
Input to the X’tal oscillator circuit
O
Output from the X’tal oscillator circuit
—
Ground (for OSC cell)
—
Built-in DAC VCC
—
O
Built-in DAC (L-ch) output
O
Built-in DAC (R-ch) output
I
Built-in DAC VREF (R-ch)
—
Ground (for the built-in DAC)
O
Playback EFM duplex signal output
—
AVDD
I
Bias input for the playback EFM comparison
I
Playback EFM RF signal input
—
AVSS
O
Phase comparison output for the analog PLL
I
Filter input for the playback EFM system master PLL
I
Peak hold signal input of the light amount signal
I
Bottom hold signal input of the light amount signal
12
Page 49
MZ-E501
Pin No.
47FEIFocus error signal input
48AUX1ISupport signal input (A/D input)
49VCIMiddle point voltage input
50ADIOONot used (open)
51ADRTIA/D converter the upper limit voltage input
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
Pin Name
AVD2
AVS2
ADRB
SE
TE
DCHG
APC
DSPVDD0
DSPVSS0
XTSL
DIN1
DOUT
PWMLPONot used (open)
PWMLN
PWMRPONot used (open)
DADT/PWMRNONot used (open)
ADDT
LRCKONot used (open)
XBCKONot used (open)
FS256
MVCI
DSPVDD1
ADFG
F0CNT
DIFVDD0
DIFVSS0
APCREFO
LDDRONot used (open)
TRDROTracking servo drive PWM signal output (–)
TFDROTracking servo drive PWM signal output (+)
FFDROFocus servo drive PWM signal output (–)
FRDROFocus servo drive PWM signal output (+)
MCUVDD1
FGININot used (open)
FS4O176.4kHz clock signal output
SPRD/SPDU/
RTG0
SPFD/SPVS/
PWM3
SPDV/RTG1OBrushless spindle motor 3-phase drive logic output (V)/RTG output 1
SPDW/RTG2OBrushless spindle motor 3-phase drive logic output (W)/RTG output 2
I/ODescription
—
AVDD
—
AVSS
I
A/D converter the lower limit voltage input
I
Sled error signal input
I
Tracking error signal input
—
Connecting analog power supply of the low impedance
I
Error signal input for the laser digital APC
—
Power supply (for DSP block)
—
Ground (for DSP block)
X’tal oscillation frequency selection
I
I
Not used (connected to ground)
O
Not used (open)
O
Not used (open)
I
Not used (connected to ground)
O
Not used (open)
I
Not used (connected to ground)
—
Power supply (for DSP block)
I
ADIP duplex FM signal (20.05±1KHz) input
O
Not used (open)
—
Power supply (for DSP I/F)
—
Ground (for DSP I/F)
Output to the reference PWM for the laser APC
—
Power supply (for the microcomputer block)
Spindle servo drive output (PWM– or inertia)/Brushless spindle motor 3-phase drive logic
O
output (U)/RTG output 0
Spindle servo drive output (PWM+ or PWM absolute value)/Brushless spindle motor absolute
O
value PWM output/PWM3
13
Page 50
MZ-E501
Pin No.
91
92
93SPCUIBrushless spindle motor drive comparison signal input (U)
94SPCVIBrushless spindle motor drive comparison signal input (V)
95SPCWIBrushless spindle motor drive comparison signal input (W)
96SRDR/SL1FOSled servo drive PWM signal output (–)
97SFDR/SLVFOSled servo drive PWM signal output (+)
98SLDVO
156, 157TEST1, TEST0ITerminal 1, 0 for the main test
158EVAIEVA/FLASH chip discrimination terminal
159OPR LEDOOperation LED control (Not used in this set)
160SSB DATAI/OInput/output of SSB serial data
161SSB CLK—SSB serial clock
162MCUVSS0
163OPR_LED_R_PWMOOperation LED (R) control PWM
164VL PWM —
165VC PWM—PWM for the system power supply voltage control
166
167
168
169CLK SELONot used (open)
170
171GND SWONot used (open)
172SET CODE0OSet code 0
173SET CODE1OSet code 1
174SET CODE2O
175SET CODE3O
176MIFVDD1
177MIFVSS1
178AOUT SELOHP/LINE changeover signal output Not used (open)
179SI0
180SO0O
181SCK0O
182XGUM ONI
183BEEP OBeep sound output
184NC
185VD. SELO
186XMUTEO
187LCD_RST_AUXO
188,189NCONot used (open)
190X PATCHI
191OPT DETINot used (open)
192XJACK DETINot used (open)
193XMIC DETINot used (open)
194, 195PD S0, PD S1OPD IC mode changeover 0, 1
196MIFVDD2
197 to
199
200, 201HD CON 1, 2ONot used (open)
202NCONot used (open)
203XCS ADAONot used (open)
204XPD ADAONot used (open)
205XCS LCDONot used (open)
Pin Name
SPDL_AUX_PWM
OPR_LED_G_PWM
NCONot used (open)
OPEN CLOSE
SW
MODE1 to 3O
I/ODescription
—
Ground (for the microcomputer block)
PWM for the laser power supply voltage control
OSpindle auxiliary control PWM
OOperation LED (G) control PWM
Not used (open)
I
Set code 2
Set code 3
—
Power supply (for the microcomputer I/F block)
—
Ground (for the microcomputer I/F block)
I
Serial data input (CH0)
Serial data output (CH0)
Serial clock signal output (CH0)
Not used (open)
—
Not used (open)
Not used (open)
Not used (open)
Not used (open)
Not used (connected to ground)
—
Power supply (for the microcomputer I/F block)
Not used (open)
15
Page 52
MZ-E501
Pin No.
206LCD STBONot used (open)
207LCD RSTONot used (open)
208REC LEDONot used (open)
209LD ONONot used (open)
210TSB SLV CHKITSB slave check
211
212
213MCUVSS1
214CAV CLV SWONot used (open)
215XOPT CTLONot used (open)
216CS RTCONot used (open)
217OFTRKIOff track signal input
218MUTEOAnalog mute “H”: muting ON
219XCS NVONV RAM chip select
227XHOLD SWIHOLD switch detection
228SYNC RECINot used (open)
229TSB_SSB_CTLOTSB/SSB switching
230PROTECTI
231FLASHVDD
232FLASHVSS
233SLD MONISled monitor
234VLONOLaser power supply control
235SLEEPOSLEEP request
236FFCLROInput latch output for the start signal
237CHG GAINONot used (open)
238CHGONot used (open)
239
240
241MIFVDD3
242MIFVSS2
243TEST2ONot used (open)
244NC
Pin Name
K-TAI_MONINot used (open)
K-TAI_SWINot used (open)
XRST MTR
DRV
SOUND 1, 2
TUN REG ONONot used (open)
XHP STBYOHP Amp power supply control
I/ODescription
—
Ground (for the microcomputer block)
ONADESHIKO2 reset
—
Power supply (for the microcomputer block)
I
Not used (open)
Not used (open)
—
Power supply for FLASH
—
Ground terminal for FLASH
—
Power supply (for the microcomputer I/F block)
—
Ground (for the microcomputer I/F block)
—
Not used (open)
16
Page 53
MZ-E501
SECTION 2
ELECTRICAL PARTS LIST
NOTE:
• Due to standardization, replacements in the
parts list may be different from the parts
specified in the diagrams or the components
used on the set.
• -XX, -X mean standardized parts, so they
may have some difference from the original
one.
• Items marked “*” are not stocked since they
are seldom required for routine service.
Some delay should be anticipated when
ordering these items.
R5151-208-691-11 METAL CHIP2.2K0.5%1/16W
R5161-208-691-11 METAL CHIP2.2K0.5%1/16W
R5171-208-691-11 METAL CHIP2.2K0.5%1/16W
R5191-218-977-11 RES-CHIP100K5%1/16W
R5211-242-967-11 RES-CHIP15%1/16W
Clicking the version allows you to jump to the revised page.
Also, clicking the version at the upper right on the revised page allows you to jump to the next revised
page.
Ver.DateDescription of Revision
1.22001.12 Supplement-1:Change of board (1-681-868-11→1-681-868-12)
Correction of IC pin function description and exploded views
(ECN-DAB01214)
1.12001.11 AEP, French model addition
1.02001.07 New
(ENG-01021)
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