Sony MZ-N707 OpenMG Jukebox NOTES on installing & operating Service Manual
SERVICE MANUAL
PORTABLE MINIDISC RECORDER
US Model
Canadian Model
AEP Model
UK Model
SPECIFICATIONS
MZ-N707
US and foreign patents licensed from Dolby
Laboratories.
– Continued on next page –
Model Name Using Similar Mechanism NEW
Mechanism Type MT-MZN707-177
Optical Pick-up Name LCX-5R
Ver 1.0 2002. 01
9-873-458-01 Sony Corporation
2002A0500-1 Personal Audio Company
C 2002.1 Published by Sony Engineering Corporation
• OpenMG, “MagicGate”, “MagicGate Memory Stick”, “Memory Stick”,
VAIO,MusicClip and their logos are trademarks of Sony Corporation.
• “WALKMAN” is a trademark of Sony Corporation.
• Microsoft,Windows,Windows NT and Windows Media are trademarks
or registered trademarks of Microsoft Corporation in the United States
and/or other countries.
• IBM and PC/AT are registered trademarks of International Business
Machines Corporation.
• Macintosh is a trademark of Apple Computer,Inc.in the United States
and/or other countries.
• All other trademarks are trademarks of their respective owners. ™ and
® marks are omitted in this manual.
MD Recorder
Audio playing system
MiniDisc digital audio system
Laser diode properties
Material: GaAlAs MQW
Wavelength:
λ = 790 nm
Emission duration: continuous
Laser output: less than 44.6 µW
(This output is the valu e measure d at a dist ance
of 200 mm from the lens surface o n the optic a l
pick-up block with 7 mm aperture.)
Recording and playback time
When using MDW-80
Maximum 160 min. in monaural
Maximum 320 min. in stere o
Revolutions
Approx. 380 rpm to 2,700 rpm (CLV)
Error correction
ACIRC (Advanced Cross Interleave Reed
Solomon Code)
Sampling frequency
44.1 kHz
Sampling rate converter
Input: 32 kHz/44.1 kHz/48 kHz
Coding
ATRAC (Adaptive TRansform Acoustic
Coding)
ATR AC3 — LP2
ATR AC3 — LP4
2
MZ-N707
Modulation system
EFM (Eight to Fourteen Modulation)
Number of channels
2 stereo channels
1 monaural channel
Frequency response
20 to 20,000 Hz ± 3 dB
Wow and Flutter
Below measurable limit
Inputs
Microphone: stereo mini-ja ck , minimum input
level 0.35 mV
Line in: stereo mini- jack, minimum input level
49 mV
Optical (Digital) in: optical (digital) mini-jack
Output
i: stereo mini-jack, m aximum output level
5mW+5mW, load impedance 16 ohm (except US model)
5mW+5mW, load impedance 24 ohm (US model)
General
Power requirements
Sony AC Power Adaptor connected at the DC
IN 3 V jack (country model in parenthese s):
120 V AC, 60 Hz (USA, Canada)
230 V AC, 50/60 Hz (Continental Europe)
230 - 240 V AC, 50 Hz (U.K.)
Nickel Cadmium rechargeable battery NCWMAA (supplied)
LR6 (size AA) alkaline battery (not supplied)
Dimensions
Approx. 81 × 74.4 × 27.7 mm (w/h/d) (31/4 × 3
× 1
1
/8 in.) without projections.
Mass
Approx. 116 g (4.1 oz) the recorder only
Supplied accessories
NC-WMAA Nickel Cadmium rechargeable battery (1)
AC power adaptor (1)
Headphones/ear phones with a remote cont rol (1)
Battery charging stand (1)
Optical cable (1)
USB cable (1)
CD-ROM (1)*
Carrying case with a belt clip (1) (except US model)
Battery carrying case (1)
Carrying pouch (1) (US and Canadian models)
Car connecting pack (1) (US and Canadian models)
Blank Minidisc (1) (US and Canadian models)
Design and specifications are subject to change
without notice.
Car battery cord (1) (US and Canadian models)
∗ Do not play a CD-ROM on an audio CD player.
Battery life
1)
When recording
2)
(Unit: approx.hours)(JEITA3))
1)
The battery life may be shorter due to operating
conditions, the temperature of the location, and
varieties of batteries.
2)
When you record, use a fully charged
rechargeable batter y. Reco rd ing time may
differ according to the alkaline batteries.
3)
Measured in accordance wit h the JEITA (Japan
Electronics and Information Technolo gy
Industries Association) standard.
Batteries SP
Stereo
LP2
Stereo
LP4
Stereo
NC-WMAA
Nickel
Cadmium
rechargeable
battery
4)
4)
When using a 100% fully charged rechargeable
battery.
4 6 7.5
LR6 (SG)
Sony alkaline
dry battery
5)
5)
When using a Sony LR6 (SG) “STAMINA”
alkaline dry battery (produced in Japa n) .
91316
When playing
(Unit: approx.hours)(JEITA1))
Batteries SP
Stereo
LP2
Stereo
LP4
Stereo
NC-WMAA
Nickel
Cadmium
rechargeable
battery
2)
15 16 20
LR6 (SG)
Sony alkaline
dry battery
3)
42 48 56
1)
Measured in accordance with the JEITA
(Japan Electronics and Information
Technology Industries Associat io n ) stan d ard .
2)
When using a 100% fully charged
rechargeable battery.
3)
When using a Sony LR6 (SG) “STAMINA”
alkaline dry battery (produced in Japa n) .
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQ UE 0
SUR LES DIAGRAMMES SCHÉMA TIQUES ET LA LISTE
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ
DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED
LINE WITH MARK 0 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 MANU AL OR IN SUPPLEMENTS PUBLISHED BY SONY.
3
MZ-N707
On power sources
• Use house current, Nickel Cadmium
rechargeable battery, LR6 (SG) battery, or car
battery.
• For use in your house: Use the AC power
adaptor supplied with this r ecor de r. Do not
use any other AC power adaptor since it may
cause the recorder to malfunction.
Polarity of the
plug
TABLE OF CONTENTS
1. SERVICING NOTES............................................... 4
2. GENERAL ................................................................... 5
3. DISASSEMBLY
3-1. Disassembly Flow ........................................................... 6
3-2. Case (Lower) ................................................................... 7
3-3. Upper Panel Section........................................................ 7
3-4. LCD Module, Upper Panel Sub Assy............................. 8
3-5. Mechanism Deck (MT-MZN707-177) ........................... 8
3-6. Set Chassis (5192) Assy.................................................. 9
3-7. MAIN Board ................................................................... 9
3-8. OP Service Assy (LCX-5R)............................................ 10
3-9. Holder Assy ..................................................................... 11
3-10. DC Motor (Sled) (M602) ................................................ 11
3-11. DC SSM18B Motor (Spindle) (M601),
DC Motor (Over Write Head Up/Down) (M603) .......... 12
4. TEST MODE.............................................................. 13
5. ELECTRICAL ADJUSTMENTS......................... 19
6. DIAGRAMS
6-1. Block Diagram – SERVO/USB Section – ...................... 32
6-2. Block Diagram – AUDIO Section – ............................... 33
6-3. Block Diagram – DISPLAY/KEY CONTROL/
POWER SUPPLY Section – ........................................... 34
6-4. Note for Printed Wiring Board and
Schematic Diagrams ....................................................... 35
6-5. Printed Wiring Board
– MAIN Board (Component Side) – ............................. 36
6-6. Printed Wiring Board
– MAIN Board (Conductor Side) – ............................... 37
6-7. Schematic Diagram – MAIN Board (1/4) – .................. 38
6-8. Schematic Diagram – MAIN Board (2/4) – .................. 39
6-9. Schematic Diagram – MAIN Board (3/4) – .................. 40
6-10. Schematic Diagram – MAIN Board (4/4) – .................. 41
6-11. IC Pin Function Description ........................................... 48
7. EXPLODED VIEWS
7-1. Upper Panel, Case (Lower) Section ............................... 55
7-2. Chassis Section ............................................................... 56
7-3. MAIN Board Section ...................................................... 57
7-4. Mechanism Deck Section-1 (MT-MZN707-177)........... 58
7-5. Mechanism Deck Section-2 (MT-MZN707-177)........... 59
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.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged 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.
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.
4
MZ-N707
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-5R)
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.
OPTICAL PICK-UP FLEXIBLE BOARD
SECTION 1
SERVICING NOTES
• In performing the repair with the power supplied to the set, removing the MAIN board causes the set to be disabled.
In such a case, fix a conve x part of the open/close detect switch
(S806 on MAIN board) with a tape in advance.
Handle the FLEXIBLE board (over write head) with care, as it
has been soldered directly to the MAIN board.
In repairing the component side of MAIN board, connect the
FLEXIBLE board (over write head) and the MAIN board with
the lead wires in advance.
laser-tap
• Replacement of CXD2677-202GA (IC801) used in this set requires a special tool.
• The shipment data will be cleared when the NV is reset. Therefore, change the NV adjusted values following the Change of
NV Adjusted Values immediately after the NV was reset. (See
page 19)
• This set requires the patch data in the nonvolatile memory
(IC804) to be rewritten using the application, when the MAIN
board or nonvolatile memory (IC804) was replaced. (See page
29)
System requirements
• IBM PC/AT or Compatible (The software does not run on Macintosh.)
CPU: MMX™ Pentium
®
233 MHz or higher (Pentium® II 400 MHz or higher is
recommended.)
Hard disk drive space: 60 MB or more (The amount of necessary space depends on
the version of the Windows OS or the size of your audio files.)
RAM: 64 MB or higher (128 MB or higher is recommended for Windows
®
XP Home
Edition/Windows
®
XP Professional.)
CD-ROM drive (capable of digital playback by WDM)
Sound Board
USB port (supports USB 2.0 Full Speed (previously USB 1.1))
• Operating System: Windows
®
98/Windows® 98 Second Edition/Windows® 2000
Professional/Windows
®
Me/Windows® XP Home Edition/Windows® XP
Professional (manufacturer installed)
The NTFS format of Windows
®
2000 Professional, Windows® XP Home Edition, or
Windows
®
XP Professional (manufacturer-installed) is supported only when used
with the standard (factory) settings.
This software is not supported by the following environments.
– Windows
®
95, Windows® NT, or other versions of Windows® NT (such as Server)
– An environment that is an upgrade of the original manufacturer-installed
operating system, as in the following examples:
Windows
®
3.1/Windows® 95 t Windows® 98 (or Windows® 98 Second Edition/
Windows
®
Me)
Windows
®
Me/Windows® 2000 Professional t Windows® XP
– Multi-boot environment with Windows
®
2000 (or Windows® XP) and Windows
®
98 (or Windows® 98 Second Edition/Windows®Me)
• Display: High (16bit) Color or more (800 × 480 dot or more)
• Internet access: for Web registration and EMD services
• Internet access: for software upgrades and CDDB2 use. (US and Canadian models)
• Windows Media Player (version 7.0 or higher) installed for playing WMA files.
Notes
• Trouble-free operation is not assured within a multiple-monitor environment.
• We do not assure trouble-free operation for all computers satisfying the system requirements.
• Trouble-free operation is not guaranteed following the self-conducted upgrade of home-built
PCs or operating systems.
• We do not assure trouble-free operation of the system suspend, sleep, or hibernation function on
all computers.
• For details, refer to “Net MD Help” of the online help.
Note
The optical digital output connector (on computers provided with one) may be disabled
during playback for the protection of copyrights.
Notes on using OpenMG Jukebox with Windows
2000/Windows XP
If your computer is Windows 2000 Professional, Windows XP Home Edition, or
Windows XP Professional, please be aware of the following before instaling OpenMG
Jukebox.
1
With Windows 2000 Professional, you must log on as “Administrators” (or with the
user name “Administrator”) to install OpenMG Jukebox.
2
With Windows XP Home Edition or Windows XP Professional, you must log on
with user name “Computer Administrator” to install OpenMG Jubebox. To check
whether a user name has the attribute of “Computer Administrator” or not, go to
[Control Panel] - [User Account].
Notes on using OpenMG Jukebox with Windows XP/
Windows Me
If Windows XP/Windows Me is installed in your computer, and you perform the
“System Restore” function of the Windows “System Tools,” the songs managed by
OpenMG Jukebox may become corrupted and rendered unplayable.
Therefore, before executing “System Restore,” back up the songs using “OpenMG
Jukebox Backup Tool” first.
Then, after the “System Restore” function is finished, restore the songs using
“OpenMG Jukebox Backup Tool” to ensure the integrity and reliability of song
playback.
For more information about backup, refer to the online Help for OpenMG Jukebox.
Note
When songs become unplayable by executing “System Restore,” an error dialog box may be
displayed. In this case, follow the displayed messages.
upper panel ass
y
MAIN board
tape
S806
FLEXIBLE board
(over write head)
5
MZ-N707
SECTION 2
GENERAL
This section is extracted from
instruction manual.
10
Looking at the controls
The recorder
A
GROUP/CANCEL button
B
REC (record) switch
C
Display window
D
OPEN button
E
T MARK button
F
VOL +/– button
The VOL + button has a tactile dot.
G
Terminal for attaching the battery
charging stand
H
DC IN 3V jack
I
END SEARCH button
J
5 position control k ey
X (pause) button
./> (search/AMS) button
ENTER/N* (play) button
x (stop)/CHG ( charge) button
*The N button has a tactile dot.
K
MENU button
L
HOLD switch
M
USB connecting jack
N
Battery compartme nt
O
LINE IN (OPTICAL) jack
P
MIC (PLUG IN POWER) jack
There is a tactile dot left side of the MIC
(PLUG IN POWER) jack.
Q
i (headphones/earp hones) jack
1
3
2
4
5
6
qg
qf
qh
qj
qa
qs
qd
7
8
9
J
ENTER
C
H
G
11
The display window of the recorder
A
Character information display
Displays the disc and track names,
error messages, track numbers, etc.
B
SYNC (synchro-recording) indication
C
Sound indication
D
REC indication
Lights up while recording. When
flashing, the recorder i s in record
standby mode.
E
Battery level indication
Shows approximate battery condition.
F
Disc indication
Shows that the disc is rotating for
recording, playing or editing an MD.
G
Time display
H
Group indication
Lights up when group mode is on.
I
Play mode indication
Shows play mode of the MD.
J
Level meter
Shows the volume of the MD being
played or recorded.
K
REC REMAIN/REMAIN (remaining
time/tracks) in d i cation
Lights up along with the remaining
time of the track, the remaining time
of the MD, or the remaining num ber
of tracks.
L
Recording mode (LP2/LP4/MONO)
indication
132456
7qsqaq;98
12
The headphones/earphones with a remote control
A
DISPLAY button
B
PLAY MODE button
C
RPT/ENT (repeat/en t er) button
D
SOUND button
E
Clip
F
X (pause) button
G
Control (./N>)
N> : play, AMS, FF
. : REW, AMS
Turn or turn and hold to play, fast
forward, rewind, etc.
H
Control (VOL +/–)
Pull and turn to adjust the volume.
I
Display window
J
HOLD switch
K
x (stop) button
May be used as the “Enter” button,
depending on the function.
The display window of the remote control
A
Track number display
B
Character information displ ay
C
Disc indication
D
Play mode indication
E
Battery level indication
F
REC indication
G
SOUND indication
+
–
A B C DE
K
F
IJ
G
H
.
N>
E
GF
A
BCD
6
MZ-N707
3-2. CASE (LOWER)
(Page 7)
3-3. UPPER PANEL SECTION
(Page 7)
3-4. LCD MODULE,
UPPER PANEL SUB ASSY
(Page 8)
3-5. MECHANISM DECK
(MT-MZN707-177)
(Page 8)
3-6. SET CHASSIS (5192) ASSY
(Page 9)
3-7. MAIN BOARD
(Page 9)
3-8. OP SERVICE ASSY
(LCX-5R)
(Page 10)
3-9. HOLDER ASSY
(Page 11)
3-10. DC MOTOR
(SLED) (M602)
(Page 11)
3-11. DC SSM18B MOTOR
(SPINDLE) (M601),
DC MOTOR (OVER
WRITE HEAD UP/DOWN)
(M603)
(Page 12)
SET
SECTION 3
DISASSEMBLY
• This set can be disassembled in the order shown below.
3-1. DISASSEMBLY FLOW
7
MZ-N707
Note: Follow the disassembly procedure in the numerical order given.
3-2. CASE (LOWER)
3-3. UPPER PANEL SECTION
1
two screws
(M1.4)
1
two screws
(M1.4)
2
Remove the case (lower) in th
e
direction of the arrow.
3
two screws
(M1.4)
5
torsion spring
(pop up-L)
3
two screws
(M1.4)
2
Slide the open slider in the direction of the arrow,
and open the upper panel section.
set chassis (5192) assy
torsion spring (pop up-L)
1
flexible board
(CN801)
4
upper panel section
8
MZ-N707
3-4. LCD MODULE, UPPER PANEL SUB ASSY
3-5. MECHANISM DECK (MT-MZN707-177)
1
five screws
(1.7 × 2.5)
2
LCD module
3
compression spring
(button)
Note: On installation, adjust the position of
both switch and knob (hold).
4
button (control A)
knob (hold)
switch
5
upper panel sub ass
y
3
two step screws (MD)
6
mechanism deck
(MT-MZN707-177)
5
flexible board (optical pick-up)
(CN501)
4
2
flexible board (motor)
(CN502)
1
Remove two solders of the
flexible board (over write head).
9
MZ-N707
3-6. SET CHASSIS (5192) ASSY
3-7. MAIN BOARD
2
two screws
(1.7 × 2.5)
3
set chassis (5192) assy
1
four screws
(M1.4 × 2)
4
battery case
5
main board
3
battery terminal (–)
2
battery terminal board (+)
10
MZ-N707
3-8. OP SERVICE ASSY (LCX-5R)
4
rack spring
3
screw (M1.4)
1
washer (0.8-2.5)
2
gear (SA)
5
screw (M1.4)
6
thrust detent spring
8
Pull off lead screw.
7
over write head section
OP service assy (LCX-5R)
9
Opening the over write head
toward the direction
A
, remove the OP service assy
(LCX-5R) toward the direction
B
.
A
B
Note: Do not open the entire assy forcibly,
when opening the over write head.
11
MZ-N707
3-9. HOLDER ASSY
3-10. DC MOTOR (SLED) (M602)
4
holder ass
y
3
boss
3
boss
1
convex portion
2
Open the holder assy
2
washer (0.8-2.5)
5
DC motor (sled) (M602)
4
two screws (M1.4)
3
gear (SA)
1
Remove six solders
of the motor flexible board.
12
MZ-N707
3-11. DC SSM18B MOTOR (SPINDLE) (M601), DC MOTOR (OVER WRITE HEAD UP/DOWN) (M603)
9
DC SSM18B motor
(spindle) (M601)
8
three tapping screws
2
tapping screw
3
motor cover
6
gear (HA)
4
gear (HB)
5
gear (HC)
DC motor
(over write head up/down)
(M603)
3.15 mm
gear (HA)
Note: Press-fit the gear (HA) up to the position of
the DC motor (over write head up/down)
(M603) as shown below.
7
DC motor (over write head up/down)
(M603)
1
Remove six solders of the
motor flexible board.
13
MZ-N707
OPERATION IN SETTING THE TEST MODE
• When the test mode becomes active, first the display check mode
is selected.
• Other mode can be selected from the display check mode.
• When the test mode is set, the LCD repeats the following dis-
play.
2 In the normal mode, turn on the [HOLD] switch. While press-
ing the [VOL --] key press the following order:
> t > t . t . t > t
. t > t . t X t X
3 In the normal mode, turn on the [HOLD] switch. While
pressing the x/CHG key, press the keys on the remote
commander with the following order:
N > t N > t . t . t N > t
. t N > t . t X t X
Note: If electrical adjustment (CD and MO overall adjustment) has not
been finished completely , “NV Error” is displayed on LCDs of the
set and the remote commander.
SECTION 4
TEST MODE
OUTLINE
• This set provides the Overall adjustment mode that allows CD
and MO discs to be automatically adjusted when in the test mode.
In this overall adjustment mode, the disc is discriminate between
CD and MO, and each adjustment is automatically executed in
order. If a fault is found, the system displays its location. Also,
the manual mode allows each individual adjustment to be automatically adjusted.
• Operation in the test mode is performed with the set. A key
having no particular description in the text, indicates a set key.
SETTING METHOD OF TEST MODE
There are three different methods to set the test mode:
1 Short SL801 (TEST) on the MAIN board with a solder bridge
(connect pin <zvn of IC801 to the ground). Then, turn on the power .
827
C839
R817
C814
FB801
R821
R823
R824
R858
R825
C822
C816
R822
R857
C817
C809
+
C815
+
C821
+
195
199
178
174
170
203
180
176
172
175
171
169
197
193
191
189
185
187
173
179
177
183
182
207
181
184
186
215
188
209
190
211
213
192
194
1
7
0
4
9
8
9
6
SL801
(TEST)
C625
SL801
(TEST)
– MAIN Board (Conductor Side) –
Microcomputer
version
display
All off
All lit
Set LCD display
Ver 1.100
00 3
• When the X key is pressed and hold down, the display at that
time is held so that display can be checked.
RELEASING THE TEST MODE
For test mode set with the method 1:
Turn off the power and open the solder bridge on SL801 (TEST)
on the MAIN board.
Note: Remove the solders completely. Remaining could be shorted with
the chassis, etc.
For test mode set with the method 2 or 3:
Turn off the power.
14
MZ-N707
CONFIGURATION OF TEST MODE
MANUAL MODE
Mode to adjust or check the operation of the set by function.
Normally, the adjustment in this mode is not executed.
However, the Manual mode is used to clear the memory, power
supply adjustment, and laser power check before performing
automatic adjustments in the Overall Adjustment mode.
• Transition Method in Manual Mode
1. Set the test mode (see page 13).
2. Press the > or[VOL +] key activates the manual mode where
the LCD display as shown below.
3. During each test, the optical pick-up moves outward or inward while the
> or . key is pressed for several sec-
onds respectively.
4. Each test item is assigned with a 3-digit item number;
100th place is a major item, 10th place is a medium item, and
unit place is a minor item.
The values adjusted in the test mode are written to the
nonvolatile memory (for the items where adjustment was
made).
Press the x/CHG key
[Manual Mode]
[Servo Adjustment]
[Audio Adjustment]
[Power Supply Adjustment]
[OP Alignment Adjustment]
[Overall Adjustment Mode]
[Sound Skip Check Result Display Mode]
[Key Check Mode]
[Test Mode $Display Check Mode%]
Press the x/CHG key
Press the . or [VOL --] key
Press the N or [REC] key
Press the > or [VOL +] key
[Electrical Offset Adjustment]
Power Supply Adjustment
Auto Item Feed
CD Overall Adjustment/
MO Overall Adjustment
[Self-Diagnosis Result Display Mode]
Press the [MENU] key
Press the
[T MARK] key
The key check quits, or open the upper panel
Press the
x/CHG key
Press the x/CHG key
x/CHG
key
x/CHG
key
[VOL +]
key: 100th place of item number
increase.
[VOL --]
key: 100th place of item number
decrease.
[Major item switching]
[VOL +]
key: 10th place of item number
increase.
[VOL --]
key: 10th place of item number
decrease.
[VOL +]
key: Increases the adjusted
value of the 1st digit
[VOL --]
key: Decreases the adjusted
value of the 1st digit
[Medium item switching]
N
key
N
key
[Minor item switching]
[Adjusted value variation]
X
key: When adjusted value is
changed:
Adjusted value is written.
When adjusted value is
not changed:
That item is adjusted
automatically.
[Adjusted value write]
>
key: Unit place of item number
increase.
.
key:Unit place of item number
decrease.
Manual
0 00
Set LCD display
15
MZ-N707
5. The display changes a shown below each time the
[MENU] key is pressed.
However in the power mode (item number 700’s), only the
item is displayed.
6. Quit the manual mode, and press the
x/CHG key to return to
the test mode (display check mode).
OVERALL ADJUSTMENT MODE
Mode to adjust the servo automatically in all items.
Normally, automatic adjustment is executed in this mode at the
repair.
For further information, refer to “SECTION 5 ELECTRICAL
ADJUSTMENTS” (see page 19).
item number
address adjusted value
• Address & Adjusted Value Display
Set LCD display
• Jitter Value & Adjusted Value Display
Set LCD display
• Block Error Value & Adjusted Value Display
Set LCD display
• ADIP Error Value & Adjusted Value Display
Set LCD display
• Focus Drive Value & Adjusted Value Display
Set LCD display
• Item Title Display
Set LCD display
C68S1B
0 11
item number
jitter value adjusted value
0FEJ1B
0 11
item number
block error value adjusted value
063B1B
0 11
item number
ADIP error value adjusted value
081A1B
0 11
item number
Focus drive value adjusted value
000F1B
0 11
item number
item title adjusted value
LrefPw 1B
0 11
SELF-DIAGNOSIS RESULT DISPLAY MODE
This set uses the self-diagnostic function system in which if an
error occurred during the recording or playing, the mechanism
control block and the power supply control block in the
microcomputer detect it and record its cause as history in the
nonvolatile memory.
By checking this history in the test mode, you can analyze a fault
and determine its location.
Total recording time is recorded as a guideline of how long the
optical pickup has been used, and by comparing it with the total
recording time at the time when an error occurred in the selfdiagnosis result display mode, you can determine when the error
occurred.
Clear both self-diagnosis history data and total recording time, if
the optical pickup was replaced.
• Self-Diagnosis Result Display Mode Setting Method
1. Set the test mode (see page 13).
2. In the display check mode, press the [MENU] key activates the
self-diagnosis result display mode where the LCD display as
shown below.
3. Then, each time the
> key is pressed, LCD display descends
by one as shown below. Also, the LCD display ascends by one
when the . key is pressed.
If the
[MENU] key is pressed with this display, the LCD switches
to the simple display mode.
4. Quit the self-diagnosis result display mode, and press the x/
CHG key to return to the test mode (display check mode).
1 ****
0 XX
N ****
0 XX
N1****
0 XX
N2****
0 XX
R_****
0 XX
1
1
XX
: Error code
****
: Total recording time
1 0000
0 XX
history code
error display code
Total recording time
when error occurred
Set LCD display
16
MZ-N707
• Description of Indication History
History code number Description
1 The first error
N The last error
N1 One error before the last.
N2 Two errors before the last.
R_ Total recording time
RESET THE ERROR DISPLAY CODE
After servicing, reset the error display code.
• Setting Method of Reset the Error Display Code
1. Set the test mode (see page 13).
2. Press the [MENU] key activates the self-diagnosis result display
mode.
3. To reset the error display code, press the X key (twice) when
the code is displayed (except “R_****”).
(All the data on the 1, N, N1, and N2 will be reset)
• Description of Error Indication Codes
Problem Indication code Meaning of code Simple display Description
No error 00 No error --- No error
01
Illegal access target
Adrs Attempt to access an abnormal address
address was specified
Servo system error 02 High temperature Temp High temperature detected
03 Focus error Fcus Disordered focus or can not read an address
04 Spindle error Spdl Abnormal rotation of disc
TOC error
11 TOC error TOC Faulty TOC contents
12 Data reading error Data Data could not be read at SYNC
Power supply system error 22 Low battery LBat Momentary interruption detected
31 Offset error Ofst Offset error
32
Focus error ABCD
ABCD Focus error ABCD offset error
offset error
Offset system error
33
Tracking error
TE Tracking error Offset error
Offset error
34
X1 tracking error
X1TE X1 tracking error Offset error
Offset error
Disc error 35
MD DATA 2
MD2 MD DATA 2 disc error
disc error
17
MZ-N707
• Cause of Sound Skip Error
Cause of error Description of error
EIB Sound error correction error
Play
Stat Decoder status error
Adrs Address access error
BEmp Buffer is empty
BOvr
Buffer is full, and sounds were
dumped
Record
Bful
Buffer capacity becomes less,
and forcible writing occurred
Rtry Retry times over
4. To quit the sound skip check result display mode and to return
to the test mode (display check mode), press the x/CHG key.
• Setting Method of Key Check Mode
1. Set the test mode (see page 13).
2. Press the [T MARK] key activates the key check mode.
3. When each key on the set and on remote commander is pressed,
its name is displayed on the remote commander LCD. (The
operated position is displayed for 4 seconds after the slide
switch is operated. If any other key is pressed during this display, the remote commander LCD switches to its name display)
Example1: When the > key on the set is pressed:
Example2: When the N > key on the remote commander
is pressed:
SOUND SKIP CHECK RESULT DISPLAY MODE
This set can display the count of errors that occurred during the
recording/playing for checking.
• Setting Method of Sound Skip Check Result Display
Mode
1. Set the test mode (see page 13).
2. Press the N key or [REC] ke y, and the playing or recording
sound skip result display mode becomes active respectively
where the LCD displays the following.
3. When the
N key is pressed, total error count is displayed on
the LCD, and each time the > key is pressed, the display
item moves down by one as sho wn below . Also, if the . key
is pressed, the display item moves up by one, then if the [REC]
key is pressed, the display in the record mode appears.
When the [REC] key is pressed, total error count is displayed
on the LCD, and each time the > key is pressed, the display
item moves down by one as sho wn below . Also, if the . key
is pressed, the display item moves up by one, then if
the N key is pressed, the display in the play mode appears.
P**R**
0 00
EIB **
0 00
Stat**
0 00
Adrs**
0 00
BEmp**
0 00
######
0 00
P**R**
0 00
BOvr**
0 00
Bful**
0 00
Rtry**
0 00
######
0 00
P**R**
: Total play/record errors (hex.)
**
: Counter of sound skip check each item (hex.)
######
: 6-digit address where sound was skipped last (hex.)
Playing sound skip
result display
Recording sound skip
result display
**
0 04
**
: AD value of the remote commander key
(hexadecimal 00 to FF)
Set LCD display
FF **
0 04
**
: AD value of the remote commander key
(hexadecimal 00 to FF)
Set LCD display
rPLAY **
0 04
**
: AD value of the remote commander key
(hexadecimal 00 to FF)
Set LCD display
P**R**
0 00
Total count of play
system errors (hex.)
Total count of record
system errors (hex.)
Set LCD display
18
MZ-N707
4. When all the keys on the set and on the remote commander are
considered as OK, the following displays are shown for 4 seconds.
Example1: When the keys on the set are considered as OK:
Example2: When the keys on the remote commander are con-
sidered as OK:
5. When all keys were checked or if the upper panel is opened,
the key check mode quits and the test mode (display check
mode) comes back.
SET OK **
8 88
**
: AD value of the remote commander key
(hexadecimal 00 to FF)
Set LCD display
RMC OK **
8 88
**
: AD value of the remote commander key
(hexadecimal 00 to FF)
Set LCD display
19
MZ-N707
• Setting Method of NV Reset
1. Select the manual mode of the test mode, and set item number
021 NV Reset (see page 14).
2. Press the X key.
3. Press the X key once more.
4. Press the x/CHG key to quit the manual mode, and return
the test mode (display check mode).
• Change of NV Adjusted Values (Version 1.100)
Caution: Change the NV adjustment values according to the mi-
crocomputer version.
In this set, some adjusted values were set in the manual mode at
the shipment, but these will be cleared when the NV is reset.
Therefore, modify the NV adjusted values through the following
procedure immediately after the NV was reset.
1. Item numbers in which the NV adjusted values are to be modi-
fied
– Change ABCD gain [Hpit] initial value (item number 336)
Caution: The ABCD gain [Hpit] initial value must be
changed before the overall adjustment.
– Change BatFlg value (item number 741)
– Change NiRec0 to 4 values (item numbers 771 to 775)
– Change NiPb 0 to 4 values (item numbers 776 to 779, 781)
– Change CL V dri ve voltage limiter (item n umbers 865, 866)
– Change x2 CL V speed gain, +6dB compared to con ventional
(item numbers 867, 868)
– Change x2 CL V phase gain, +3dB compared to con ventional
(item numbers 871, 872)
– Change x2/x1 switching temperature threshold value
(+10°C t +5°C) (item numbers 873, 874)
ResOK?
0 21
Set LCD display
SECTION 5
ELECTRICAL ADJUSTMENTS
Res***
0 21
Set LCD display
Reset!
0 21
r
NV reset (after several seconds)
OUTLINE
• In this set, automatic adjustment of CD and MO can be performed by entering the test mode.
However, before starting automatic adjustment, the memory
clear, power supply adjustment, and laser power check must be
performed in the manual mode.
• A key having no particular description in the text, indicates a
set key.
PRECAUTIONS FOR ADJUSTMENT
1. Adjustment must be done in the test mode only.
After adjusting, release the test mode.
2. Use the following tools and measuring instruments.
• Test CD disc TDYS-1
(Part No. : 4-963-646-01)
• SONY MO disc available on the market
• Digital voltmeter
• Laser power meter LPM-8001
(Part No. : J-2501-046-A)
• Thermometer (using the Temperature Correction)
3. Unless specified otherwise, supply DC 3V from the DC IN
3V jack (J601).
4. Switch position
HOLD switch ............................................... ON
ADJUSTMENT SEQUENCE
1. NV Reset (EEPROM clear)
Manual Mode
r
2. Power Supply Manual Adjustment
Manual Mode
r
3. Temperature Correction (item number: 015)
r
Manual Mode
4. Laser Power Check
r
5. Electrical Offset Adjustment
Caution: This adjustment must be made with
no disc loaded.
r Overall Mode
6. CD Overall Adjustment
r
7. MO Overall Adjustment
r
Manual Mode
8. RESUME Clear
Note: If the version of the microcomputer is 1.000 or later, “3. T empera-
ture Correction” and “2. Power Supply Manual Adjustment” can
be performed continuously in reverse order with pressing the [END
SEARCH]
key in the overall adjustment mode.
NV RESET
Caution: The shipment data will be cleared when the NV is reset.
Therefore, change the NV adjusted values following the
Change of NV Adjusted Values immediately after the
NV was reset.
Change the NV adjustment values according to the microcomputer version.
ResNV CC
0 21
Set LCD display
20
MZ-N707
2. NV adjusted values modifying procedure
1) Select manual mode of the test mode, and set item number
336 (see page 14).
2) Adjust with the [VOL +] key (adjusted value up) or [VOL --]
key (adjusted value down) so that the adjusted value becomes
08.
3) Press the X key to write the adjusted value.
4) Select manual mode of the test mode, and set item number
741 (see page 14).
5) Adjust with the [VOL +] key (adjusted value up) or [VOL --]
key (adjusted value down) so that the adjusted value becomes
02.
6) Press the X key to write the adjusted value.
7) Select manual mode of the test mode, and set item number
771 (see page 14).
8) Adjust with the
[VOL +] key (adjusted value up) or [VOL --]
key (adjusted value down) so that the adjusted value becomes
6E.
9) Press the X key to write the adjusted value.
10) Select manual mode of the test mode, and set item number
772 (see page 14).
11) Adjust with the [VOL +] key (adjusted value up) or [VOL --]
key (adjusted value down) so that the adjusted value becomes
7C.
12) Press the X key to write the adjusted value.
13) Select manual mode of the test mode, and set item number
773 (see page 14).
AbcdGn **
3 36
**
: Adjusted value
Set LCD display
BatFlg **
7 41
**
: Adjusted value
Set LCD display
NiRec0 **
7 71
**
: Adjusted value
Set LCD display
NiRec1 **
7 72
**
: Adjusted value
Set LCD display
NiRec2 **
7 73
**
: Adjusted value
Set LCD display
14) Adjust with the [VOL +] key (adjusted value up) or [VOL --]
key (adjusted value down) so tha t the adjusted value becomes
7D.
15) Press the X key to write the adjusted value.
16) Select manual mode of the test mode, and set item number
774 (see page 14).
17) Adjust with the [VOL +] key (adjusted value up) or [VOL --]
key (adjusted value down) so tha t the adjusted value becomes
7F.
18) Press the X key to write the adjusted value.
19) Select manual mode of the test mode, and set item number
775 (see page 14).
20) Adjust with the [VOL +] key (adjusted value up) or [VOL--]
key (adjusted value down) so tha t the adjusted value becomes
81.
21) Press the X key to write the adjusted value.
22) Select manual mode of the test mode, and set item number
776 (see page 14).
23) Adjust with the
[VOL +] key (adjusted value up) or [VOL --]
key (adjusted value down) so tha t the adjusted value becomes
5B.
24) Press the X key to write the adjusted value.
25) Select manual mode of the test mode, and set item number
777 (see page 14).
26) Adjust with the [VOL +] key (adjusted value up) or [VOL --]
key (adjusted value down) so tha t the adjusted value becomes
7B.
27) Press the X key to write the adjusted value.
NiRec3 **
7 74
**
: Adjusted value
Set LCD display
NiRec4 **
7 75
**
: Adjusted value
Set LCD display
NiPb 0 **
7 76
**
: Adjusted value
Set LCD display
NiPb 1 **
7 77
**
: Adjusted value
Set LCD display
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