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Service Manual
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MZ-N1
SERVICE MANUAL
Ver 1.0 2002. 01
AEP Model UK Model E Model
US and foreign patents licensed from Dolby Laboratories.
· 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. TM and ® marks are omitted in this manual.
Model Name Using Similar Mechanism Mechanism Type Optical Pick-up Name
NEW MT-MZN1-171 LCX-5R
SPECIFICATIONS
Audio playing system
MiniDisc digital audio system
Laser diode properties
Ma terial : GaAlAs Wavelength: = 790 nm Emission dura tion : continuous Laser output : le ss tha n 44. 6 µW (This output is the va lue measured at a distance of 200 mm from the lens surface on the op tica l pick-up blo ck with 7 mm a pe rture .)
Recording and playback time (when using MDW-80)
Ma ximum 16 0 min. in monaural Ma ximum 32 0 min. in stereo
Revolutions
382 rpm to 2,700 rpm (CLV)
Error correction
ACIRC (Advanced Cro s s Interleave Reed Solomo n Code )
Sampling frequency
44.1 kHz
Sampling rate converter
Input: 32 kHz/44. 1 kHz/48 kHz
Coding
ATRAC (Adaptive TRa nsform Acoustic Coding) ATRAC3 -- LP 2/LP4
Continued on next page
PORTABLE MINIDISC RECORDER
9-873-443-01
2002A0500-1 C 2002.1
Sony Corporation
Personal Audio Company Published by Sony Engineering Corporation
MZ-N1
Modulation system
EFM (Eight to Four teen Modula tion)
Battery life 1)
When recording 2)
When playing
Frequency response
20 to 20, 000 Hz ± 3 dB
Wow and Flutter
Below measurable limit
(Unit: approxi.hours)(JEITA3)) Batteries SP LP2 LP4 Stere o Stere o Stereo Nickel me ta l 12 hydride rechargeable battery 4) LR6 (S G) 12 Sony alkaline dry battery 5) Nickel metal hydride rechargeable battery 4) + On e LR6 (SG)5)
1) The
Batteries
(Unit : approxi.hours)(JEITA1)) SP LP2 LP4 Stereo Stereo Stere o 30 38 42
Inputs 1)
MIC : stereo mini-ja ck (minimum inpu t leve l 0.25 mV) Line in: stereo mini-jack for anolog input (minimum inpu t level 49 mV) op tica l (digita l) mini-jack for opt ical (digital) input
17
21
Nickel metal hydride rechargeable battery2)
19
23
LR6 (S G) 44 Sony alkaline dry battery 3) Nickel metal hydride rechargeable battery 2) + On e LR6 (SG)3)
1) Measured
52
62
Outputs
i/LINE OUT 2): s tereo mini-jac k (ded icated re mo te control jack)/194 mV (10 kohm )
30
43
52
79
95
110
Maximum output (DC) Power requirement
2)
Headphones: 5 mW + 5 mW (16 ohm) Sony AC Power Adaptor connected a t the DC IN 3V jack (country model in pa rentheses): 220 V AC, 50/60 Hz (Continental Europe) 230 - 240 V AC, 50 Hz (U.K. and Hong Kong) 100 - 240 V AC, 50/60 Hz (Other countries) The recorder: Nicke l metal hydride rechargeable battery NH-14 WM(A) 1.2V 135 0 mAh (MIN) NiMH LR6 (S G) a lkaline battery USB cradle: AC power adaptor DC 3V Approx. 77 .7 × 71.4 ×16.4 mm (w/h/d) (31/8 × 27/8 × 21/32 in.)
battery life ma y be shorter due to operating conditions a nd the temperature of the location. 2) Whe n you record , use a fully charged rechargeable battery. Recording time may differ according to the a lka line batteries. 3) Measured in accordance with the J EITA (J a pa n Ele ctronic s a nd Informa tion Technology Industries Association) standard. 4) Whe n us ing a 100% fully cha rge d nickel metal hydride rech argeab le ba ttery (NH14WM(A)). 5) Whe n us ing a S ony LR6 (S G) "STAMINA " a lka line dry ba tte ry (produced in Japan).
in accordance woth the J EITA (Japan Electronics and Information Technology Industries Association) standard. 2) Whe n us ing a 100% fully charged nickel metal hydride rechargeable battery (NH14WM(A)). 3) When us ing a Sony LR6 (S G) "STAMINA " a lka line dry battery (pro duced in Japan)
Dimensions Mass
Approx. 87 g (3.0 oz ) the recorder only
1) The
LINE IN (OP T) jack is us ed to co nnect e ither a digital (optica l) ca ble or a line (analog) cable. 2) The i/LINE OUT jack connects either headphones/earphones or a line cable.
Supplied accessories
AC power adaptor (1) Headphones/earphones with a remote control (1) Optical cable (1) US B cable (1) Nickel metal hydride rechargeable battery NH-14WM(A) (1) CD-ROM (1)* Dry battery case (1) Rechargeable battery carrying case (1) Carrying pouch/carrying case with a belt clip (1) * Do not play a CD-ROM on an audio CD player.
De sign and specitications a re subject to change without not ice.
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 MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
2
MZ-N1
CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.
TABLE OF CONTENTS 1. 2. SERVICING NOTES ............................................... 4 GENERAL ................................................................... 5 DISASSEMBLY
Disassembly Flow ........................................................... Bottom Panel Assy .......................................................... Upper Panel Section ........................................................ LCD Module, Upper Panel Assy .................................... MAIN Board Section ...................................................... Battery Case Assy, MAIN Board .................................... MD Mechanism Deck (MT-MZN1-171), Chassis Assy .................................................................... OP Service Assy (LCX-5R) ............................................ Holder Assy ..................................................................... DC Motor (Sled) (M602) ................................................ DC SSM18B Motor (Spindle) (M601), DC Motor (Over Write Head UP/DOWN) (M603) ....... 6 7 7 8 8 9 9 10 11 11 12
On power sources
· Use house curre nt, nikel metal hyd ride rechargeable battery, LR6 (S G) battery, or car battery. · For use in your house: For the s uppl ied battery
charging s tand, use the AC power adaptor s uppl ied with this recorder. Do not use an y other AC power adaptor s ince it ma y cause the recorder to malfuncti on.
3.
3-1. 3-2. 3-3. 3-4. 3-5. 3-6. 3-7. 3-8. 3-9. 3-10. 3-11.
Polarity of the plug
Notes on chip component replacement · Never reuse a disconnected chip component. · Notice that the minus side of a tantalum capacitor may be damaged by heat. 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. 5. 6.
TEST MODE .............................................................. 13 ELECTRICAL ADJUSTMENTS ......................... 19 DIAGRAMS
30 31 32 33 34 35 36 37 38 39 46
6-1. Block Diagram SERVO/USB Section ...................... 6-2. Block Diagram AUDIO Section ............................... 6-3. Block Diagram DISPLAY/KEY CONTROL/ POWER SUPPLY Section ........................................... 6-4. Note for Printed Wiring Board and Schematic Diagrams ....................................................... 6-5. Printed Wiring Board MAIN Board (Component Side) ............................. 6-6. Printed Wiring Board MAIN Board (Conductor Side) ............................... 6-7. Schematic Diagram MAIN Board (1/4) .................. 6-8. Schematic Diagram MAIN Board (2/4) .................. 6-9. Schematic Diagram MAIN Board (3/4) .................. 6-10. Schematic Diagram MAIN Board (4/4) .................. 6-11. IC Pin Function Description ...........................................
7.
7-1. 7-2. 7-3. 7-4. 7-5.
EXPLODED VIEWS
Upper Panel Section ........................................................ Bottom Panel Section ...................................................... Chassis Section ............................................................... MAIN Board Section ...................................................... MD Mechanism Deck Section (MT-MZN1-171) .......... 53 54 55 56 57
8.
ELECTRICAL PARTS LIST ............................... 58
3
MZ-N1 SECTION 1 SERVICING NOTES
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. · 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 (IC802) to be rewritten using the application, when the MAIN board or nonvolatile memory (IC802) was replaced. (See page 27)
System requirements
· IBM PC/AT or Compatible (The software does not run on Macintosh.) CPU: MMXTM 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 · 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.
laser-tap
OPTICAL PICK-UP FLEXIBLE BOARD
· 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 convex part of the open/close detect switch (S804 on MAIN board) with a tape in advance. Handle the FLEXIBLE board (overwrite 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 (overwrite head) and the MAIN board with the lead wires in advance. (See page 8)
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.
FLEXIBLE board (Over write head)
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].
upper panel assy
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.
Tape MAIN board
Note
When songs become unplayable by executing "System Restore," an error dialog box may be displayed. In this case, follow the displayed messages.
S804
4
MZ-N1 SECTION 2 GENERAL
Looking at controls
The recorder
1 2 3 4 5
J
This section is extracted from instruction manual.
P MIC (PLUG IN POWER) jack There is a tactile dot beside the MIC (PLUG IN POWER) jack.
Q REC (record) switch R i (headphones/earphones)/LINE OUT jack
qa qs qd qf
The display window of the recorder
1 2 3 4 5 6
6 7 8 9
qg qh qj qk
A END SEARCH button B Display window C VOLUME +/ buttons
The VOLUME + button has a tactile dot.
· Other operations Operation Press N 1) Press . Press> Flip towards X Flip towards x
1) The
Function play/enter rewind fast forward pause stop
7 8 9 q; qa
D E F G
Battery compartment T MARK button HOLD switch (at the rear) Terminals for attaching dry battery case H DC IN 3V jack I USB cradle connecting jack J Control bar · Moves the cursor in the display.
N button has a tactile dot.
K L M N
GROUP/CANCEL button OPEN switch Charge lamp Jog dial (MENU/ENTER)
A Character information display Displays the disc and track names, date, error messages, track numbers, etc. B Group indication C Disc indication Shows that the disc is rotating for recording, playing or editing an MD. D REC indication Lights up while recording. When flashing, the recorder is in record standby mode. E SYNC (synchro-recording) indication
F Play mode indication Shows the play mode (shuffle play, program play, repeat play, etc.) of the MD. G Level meter H LP2 (LP2 stereo), LP4 (LP4 stereo), MONO (monaural) indication I Sound indication Lights up when Digital Sound Preset is on. J Battery indication Shows approximate battery condition. K Melody timer indication
Turn to select
Push to enter
O LINE IN (OPT) jack
12
13
The headphones/earphones with a remote control
A B C DEF G
H
+
I
J
K
A B C D E F G
DISPLAY button PLAY MODE button RPT/ENT (repeat/enter) button SOUND button Clip X (pause) button Control (./N>) N> : play, AMS, FF . : REW Turn or turn and hold to play, fast forward or rewind.
H I J K
You can quickly fast forward or rewind without listening to the playback sound. Control (VOLUME +/) Pull and turn to adjust the volume. Display window HOLD switch x (stop) button May be used as the "Enter" button, depending on the function.
The display window of the remote control
A B C D E F
G
H
A B C D
Track number display Character information display Disc indication Melody timer indication
E F G H
Play mode indication Battery level indication REC indication SOUND indication
14
5
MZ-N1 SECTION 3 DISASSEMBLY
· This set can be disassembled in the order shown below.
3-1.
DISASSEMBLY FLOW
SET
3-2. BOTTOM PANEL ASSY (Page 7)
3-3. UPPER PANEL SECTION (Page 7)
3-4. LCD MODULE, UPPER PANEL ASSY (Page 8)
3-5. MAIN BOARD SECTION (Page 8)
3-6. BATTERY CASE ASSY, MAIN BOARD (Page 9)
3-7. MD MECHANISM DECK (MT-MZN1-171), CHASSIS ASSY (Page 9)
3-8. OP SERVICE ASSY (LCX-5R) (Page 10)
3-10. DC MOTOR (SLED) (M602) (Page 11)
3-9. HOLDER ASSY (Page 11)
3-11. DC SSM18B MOTOR (SPINDLE) (M601), DC MOTOR (OVER WRITE HEAD UP/DOWN) (M603) (Page 12)
6
MZ-N1
Note: Follow the disassembly procedure in the numerical order given.
3-2.
BOTTOM PANEL ASSY
Note : On installation, adjust the position of both switch (S801) and knob (hold). S801
3 Remove the battery case lid.
1 Open the battery case lid. 2 claw
knob (hold)
4 Close the battery terminal (plus). 5 two screws (M1.4)
5 three screws (M1.4)
A
6 Remove the bottom panel assy in the direction of arrow A.
3-3.
UPPER PANEL SECTION
3 two screws (M1.4)
1 flexible board (CN801)
6 upper panel section 3 two screws (M1.4) 4
5 two convex holes for screws 2 Slide the lever (open) in the direction of the arrow, and open the upper panel section.
7
MZ-N1
3-4.
LCD MODULE, UPPER PANEL ASSY
1 four screws (1.7)
2 Remove the LCD module in the direction of the arrow.
3 upper panel section
3-5.
MAIN BOARD SECTION
6 flexible board (optical pick-up) (CN501)
5 7 holder (terminal)
1 Remove two solders of the flexible board (over write head).
8 main board section
3 four screws (M1.4) 4 screw (M1.4) 2 flexible board (motor) (CN502)
8
MZ-N1
3-6.
BATTERY CASE ASSY, MAIN BOARD
2 battery case assy
3 main board
1 Remove the solder of terminal (plus).
1 Remove the solder of terminal (minus).
3-7.
MD MECHANISM DECK (MT-MZN1-171), CHASSIS ASSY
2 boss
3 MD mechanism deck (MT-MZN1-171)
2 boss
1 screw (M1.4)
5 chassis assy
4 spring (POP)
1 screw (M1.4)
9
MZ-N1
3-8.
OP SERVICE ASSY (LCX-5R)
2 gear (SA) 1 washer (0.8-2.5)
5 screw (M1.4)
6 thrust detent spring 3 screw (M1.4) 8 Pull off lead screw.
4 rack spring
7
9 Opening the over write head toward the direction A, remove the OP service assy (LCX-5R) toward the direction B. B
Note: Do not open the entire assy forcibly, when opening the over write head.
OP service assy (LCX-5R)
A
over write head section
10
MZ-N1
3-9.
HOLDER ASSY
5 Remove the holder assy in the direction of arrow D.
B 2 Push the convex portion toward the direction B and open the holder assy toward the direction A to erect uprightly. 3 Remove the concave portion in the direction of arrow C.
1 Open the holder assy.
C A
D
4 convex portion
3-10. DC MOTOR (SLED) (M602)
2 washer (0.8-2.5) 3 gear (SA)
4 two screws (M1.4)
1 Remove six solders of the motor flexible board.
5 DC motor (sled) (M602)
11
MZ-N1
3-11. DC SSM18B MOTOR (SPINDLE) (M601), DC MOTOR (OVER WRITE HEAD UP/DOWN) (M603)
1 Remove six solders of the motor flexible board. qa DC motor (over write head up/down) (M603) 6 two screws (M1.4)
Note : Press-fit the gear (HA) up to the position of the DC motor (over write head up/down) (M603) as shown below. gear (HA) 2.65mm
qs gear chassis assy 4 three screws (M1.4) 9 screw (M1.2 × 1.5)
gear chassis assy DC motor (over write head up/down) (M603)
5 DC SSM18B motor (spindle) (M601)
q; gear (HA) 8 gear (HB) 7 washer (0.8-2.5) 2 washer (0.8-2.5)
3 gear (HC)
12
MZ-N1 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. · For the LCD display, the LCD on the remote commander is shown, but the contents of LCD display on the set are same.
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 display.
Remote commander LCD display
All lit
888
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 All off
MAIN Board (Conductor Side)
Microcomputer version display
001 V1.000
· 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.
SL801 (TEST)
S801 [HOLD] switch OFF t ON (HOLD)
C820
C821
SL801 (TEST)
C818 C813
C850 + C810
SL506 FB802 R842
C509
+
C510 C511
FB801
195 199 178 174 170 166 164 158 1 193 197 203 180 176 172 168 162 160 1 189 191 187 185 175 171 169 167 163 159 1 182 183 173 179 177 201 165 161 1 186 184 207 181 190 209 215 188
2 In the normal mode, turn on the [HOLD] switch. While pressing the [VOLUME --] 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.
R841
13
MZ-N1
Configuration of Test Mode [Test Mode $Display Check Mode%] Press the > or [VOLUME +] key [Manual Mode]
Press the x/CHG key
[VOLUME +] key: 100th place of item [Major item switching]
N key x/CHG key
number increase.
[VOLUME --] key: 100th place of item
number decrease.
[Servo Adjustment] [Audio Adjustment] [Power Supply Adjustment] [OP Alignment Adjustment] Press the . or [VOLUME --] key [Overall Adjustment Mode] [Electrical Offset Adjustment]
Power Supply Adjustment Auto Item Feed CD Overall Adjustment/ MO Overall Adjustment
[VOLUME +] key: 10th place of item number increase. [Medium item switching] [VOLUME --] key: 10th place of item
N key x/CHG key
number decrease.
Press the x/CHG key
[Minor item switching]
> key: Unit place of item number
increase.
. key: Unit place of item number
decrease.
[Adjusted value variation] [VOLUME +] key: Increases the adjusted
value of the 1st digit
Turn the jog dial (down), or press the [DISPLAY] key on the remote commander
[Self-Diagnosis Result Display Mode]
Press the x/CHG key Press the N or [REC] key
[VOLUME --] key: Decreases the adjusted
value of the 1st digit
[PLAY MODE] key of
the remote commander: Increase the adjusted value of the 2nd digit [SOUND] key of the remote commander: Decrease the adjusted value of the 2nd digit
[Sound Skip Check Result Display Mode]
Press the x/CHG key Press the [T MARK] key, or [DISPLAY] key on the remote commander for several seconds (about 3 seconds)
[Key Check Mode]
The key check quits, or open the upper panel
[Adjusted value write]
X key: When adjusted value is
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[VOLUME +] key activates the manual mode where the LCD display as shown below.
Remote commander LCD display
changed: Adjusted value is written. When adjusted value is not changed: That item is adjusted automatically.
000 M a n u a l
3. During each test, the optical pick-up moves outward or inward while the > or . key is pressed for several seconds 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).
14
MZ-N1
5. The display changes a shown below each time the jog dial (down) is turned or the [DISPLAY] key on the remote commander is pressed.
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
· Address & Adjusted Value Display
Remote commander LCD display
011 C 6 8 S 0 1
address item number adjusted value
· Jitter Value & Adjusted Value Display
Remote commander LCD display
011 O F F J 0 1
jitter value item number adjusted value
· Block Error Value & Adjusted Value Display
Remote commander LCD display
011 0 6 3 B 0 1
block error item number value adjusted value
1. Set the test mode (see page 13). 2. In the display check mode, turn the jog dial (down) or press the [DISPLAY] key on the remote commander activates the selfdiagnosis result display mode where the LCD display as shown below.
Remote commander LCD display
· ADIP Error Value & Adjusted Value Display
Remote commander LCD display
0XX 1
0000
Total recording time when error occurred
011 0 5 9 A 0 1
ADIP error item number value adjusted value
history code error display code
· Focus Drive Value & Adjusted Value Display
Remote commander LCD display
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.
011 0 1 5 F 0 1
Focus drive item number value adjusted value
1
0XX 1 * * * * 0XX N * * * * 0XX N 1 * * * *
· Item Title Display
Remote commander LCD display
011 L r e f P w 0 1
item title item number adjusted value
0XX N 2 * * * * 0XX R _ * * * *
1
XX : Error code * * * * : Total recording time
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).
If the jog dial (down) is turned or the [DISPLAY] key on remote commander 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).
15
MZ-N1
· Description of error indication codes Problem No error Indication code 00 01 Servo system error 02 03 04 TOC error Power supply system error 11 12 22 31 32 Offset system error 33 34 · Description of indication history History code number 1 N N1 N2 R_ Description The first error The last error One error before the last. Two errors before the last. Total recording time Meaning of code No error Simple display --No error Attempt to access an abnormal address High temperature detected Disordered focus or can not read an address Abnormal rotation of disc Faulty TOC contents Data could not be read at SYNC Momentary interruption detected Offset error Focus error ABCD offset error Tracking error Offset error X1 tracking error Offset error Description
Illegal access target Adrs address was specified High temperature Focus error Spindle error TOC error Data reading error Low battery Offset error Focus error ABCD offset error Tracking error Offset error X1 tracking error Offset error Temp Fcus Spdl TOC Data LBat Ofst ABCD TE X1TE
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. Turn the jog dial (down) or press the [DISPLAY] key on the remote commander 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)
16
MZ-N1
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] key, and the playing or recording sound skip result display mode becomes active respectively where the LCD displays the following.
Remote commander LCD display
Jog and Key Check Mode
This set can check if the set and remote commander function normally. · Setting method of jog check mode 1. Set the test mode (see page 13). 2. Press the jog button to activate the jog check mode and display as below.
Remote commander LCD display
000 PUSH
3. Turn the jog dial downwards one click.
000 P * * R * *
Total count of record system errors (hex.) Total count of play system errors (hex.)
Remote commander LCD display
000 JOG+ 1
4. Turn the jog dial downwards three more clicks.
Remote commander LCD display
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 shown 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 shown 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.
Playing sound skip result display Recording sound skip result display
000 JOG+OK
5. Turn the jog dial upwards one click.
Remote commander LCD display
000 JOG- 1
6. Turn the jog dial upwards three more clicks.
000 P * * R * * 000 E I B * * 000 S t a t * * 000 A d r s * * 000 B E m p * * 000 # # # # # #
000 P * * R * * 000 B O v r * * 000 B f u l * * 000 R t r y * * 000 # # # # # #
Remote commander LCD display
000 JOG OK
7. When the x/CHG key is pressed, it changes over to the key check mode.
Note: To enter the key check mode, it is not necessary to enter via the jog dial check mode. (Refer to next item)
P**R**: Total play/record errors (hex.) ** : Counter of sound skip check each item (hex.) ######: 6-digit address where sound was skipped last (hex.)
· Setting method of key check mode 1. Set the test mode (see page 13). 2. Press the [T MARK] key or [DISPLAY] key on the remote commander for several seconds (about 3 seconds) activates the key check mode. (At the last two digits, AD value of remote commander key line is displayed in hexadecimal)
Remote commander LCD display
000
· Cause of sound skip error Cause of error EIB Play Stat Adrs BEmp BOvr Record Bful Rtry Description of error Sound error correction error Decoder status error Address access error Buffer is empty Buffer is full, and sounds were dumped Buffer capacity becomes less, and forcible writing occurred Retry times over
**
**: AD value of the remote commander key (hexadecimal 00 to FF)
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)
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.
17
MZ-N1
Example1: When the > key on the set is pressed:
Remote commander LCD display
000 FF
**
**: AD value of the remote commander key (hexadecimal 00 to FF)
Example2: When the N > key on the remote commander is pressed:
Remote commander LCD display
000 rPLAY
**
**: AD value of the remote commander key (hexadecimal 00 to FF)
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:
Remote commander LCD display
888 SET OK **
**: AD value of the remote commander key (hexadecimal 00 to FF)
Example2: When the keys on the remote commander are considered as OK:
Remote commander LCD display
888 RMC OK **
**: AD value of the remote commander key (hexadecimal 00 to FF)
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.
18
MZ-N1 SECTION 5 ELECTRICAL ADJUSTMENTS
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. · For the LCD display, the LCD on the remote commander is shown, but the contents of LCD display on the set are same.
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. · Setting method of NV reset 1. Select the manual mode of the test mode, and set item number 021 NV Reset (see page 14).
Remote commander LCD display
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 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
021 ResNV CC
2. Press the X key.
Remote commander LCD display
021 ResOK?
3. Press the X key once more.
Remote commander LCD display
021 Res***
NV reset (after several seconds)
Adjustment Sequence
021 Reset!
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 1.000) Caution: Change the NV adjustment values according to the microcomputer 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 modified Change ABCD gain [Hpit] initial value (item number 336) Caution: The ABCD gain [Hpit] initial value must be changed before the overall adjustment. Change DFTC threshold value (item number 151) Turn off sound generation speed-up (item numbers 861 to 864) Change CLV drive voltage limiter (item numbers 865, 866) Change x2 CLV speed gain, +6dB compared to conventional (item numbers 867, 868) Change x2 CLV phase gain, +3dB compared to conventional (item numbers 871, 872) Change x2/x1 switching temperature threshold value (+10°C t +5°C) (item numbers 873, 874)
5. Electrical Offset Adjustment Caution: This adjustment must be made with no disc loaded. Overall Mode r 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. Temperature Correction" and "2. Power Supply Manual Adjustment" can be performed continuously in reverse order with pressing the [PLAY MODE] key on the remote commander in the overall adjustment mode.
19
MZ-N1
2. NV adjusted values modifying procedure 1) Select manual mode of the test mode, and set item number 336 (see page 14).
Remote commander LCD display
19) Press the X key to write the adjusted value. 20) Select manual mode of the test mode, and set item number 865 (see page 14).
Remote commander LCD display
336 AbcdGn **
**: Adjusted value
865 V3 num **
**: Adjusted value
2) Adjust with the [VOLUME +] key (adjusted value up) or [VOLUME --] key (adjusted value down) so that the adjusted value becomes 8. 3) Press the X key to write the adjusted value. 4) Select manual mode of the test mode, and set item number 149 (see page 14). 5) Press the > key to set item number 151.
Remote commander LCD display
21) Adjust with the [VOLUME +] key (adjusted value up) or [VOLUME --] key (adjusted value down) so that the adjusted value becomes 2C. 22) Press the X key to write the adjusted value. 23) Select manual mode of the test mode, and set item number 866 (see page 14).
Remote commander LCD display
866 V3 dat **
**: Adjusted value
151 Dfct 1 **
**: Adjusted value
6) Adjust with the [VOLUME +] key (adjusted value up) or [VOLUME --] key (adjusted value down) so that the adjusted value becomes 07. 7) Press the X key to write the adjusted value. 8) Select manual mode of the test mode, and set item number 861 (see page 14).
Remote commander LCD display
24) Adjust with the [VOLUME +] key (adjusted value up) or [VOLUME --] key (adjusted value down) so that the adjusted value becomes B9. 25) Press the X key key to write the adjusted value. 26) Select manual mode of the test mode, and set item number 867 (see page 14).
Remote commander LCD display
861 V1 num **
**: Adjusted value
867 V4 num **
**: Adjusted value
9) Adjust with the [VOLUME +] key (adjusted value up) or [VOLUME --] key (adjusted value down) so that the adjusted value becomes 79. 10) Press the X key to write the adjusted value. 11) Select manual mode of the test mode, and set item number 862 (see page 14).
Remote commander LCD display
27) Adjust with the [VOLUME +] key (adjusted value up) or [VOLUME --] key (adjusted value down) so that the adjusted value becomes C9. 28) Press the X key to write the adjusted value. 29) Select manual mode of the test mode, and set item number 868 (see page 14).
Remote commander LCD display
868 V4 dat **
**: Adjusted value
862 V1 dat **
**: Adjusted value
12) Adjust with the [VOLUME +] key (adjusted value up) or [VOLUME --] key (adjusted value down) so that the adjusted value becomes 00. 13) Press the X key to write the adjusted value. 14) Select manual mode of the test mode, and set item number 863 (see page 14).
Remote commander LCD display
30) Adjust with the [VOLUME +] key (adjusted value up) or [VOLUME --] key (adjusted value down) so that the adjusted value becomes 80. 31) Press the X key to write the adjusted value. 32) Select manual mode of the test mode, and set item number 871 (see page 14).
Remote commander LCD display
871 V5 num **
**: Adjusted value
863 V2 num **
**: Adjusted value
15) Adjust with the [VOLUME +] key (adjusted value up) or [VOLUME --] key (adjusted value down) so that the adjusted value becomes EA. 16) Press the X key to write the adjusted value. 17) Select manual mode of the test mode, and set item number 864 (see page 14).
Remote commander LCD display
33) Adjust with the [VOLUME +] key (adjusted value up) or [VOLUME --] key (adjusted value down) so that the adjusted value becomes CA. 34) Press the X key to write the adjusted value. 35) Select manual mode of the test mode, and set item number 872 (see page 14).
Remote commander LCD display
864 V3 dat **
**: Adjusted value
872 V5 dat **
**: Adjusted value
18) Adjust with the [VOLUME +] key (adjusted value up) or [VOLUME --] key (adjusted value down) so that the adjusted value becomes 01.
36) Adjust with the [VOLUME +] key (adjusted value up) or [VOLUME --] key (adjusted value down) so that the adjusted value becomes 2D. 37) Press the X key to write the adjusted value.
20
MZ-N1
38) Select manual mode of the test mode, and set item number 873 (see page 14).
Remote commander LCD display
7) Select manual mode of the test mode, and set item number 866 (see page 14).
Remote commander LCD display
873 V6 num **
**: Adjusted value
866 V3 dat **
**: Adjusted value
39) Adjust with the [VOLUME +] key (adjusted value up) or [VOLUME --] key (adjusted value down) so that the adjusted value becomes BB. 40) Press the X key to write the adjusted value. 41) Select manual mode of the test mode, and set item number 874 (see page 14).
Remote commander LCD display
8) Adjust with the [VOLUME +] key (adjusted value up) or [VOLUME --] key (adjusted value down) so that the adjusted value becomes B9. 9) Press the X key to write the adjusted value. 10) Select manual mode of the test mode, and set item number 867 (see page 14).
Remote commander LCD display
874 V6 dat **
**: Adjusted value
867 V4 num **
**: Adjusted value
42) Adjust with the [VOLUME +] key (adjusted value up) or [VOLUME --] key (adjusted value down) so that the adjusted value becomes 05. 43) Press the X key to write the adjusted value. · Change of NV adjusted values (version 1.100) Caution: Change the NV adjustment values according to the microcomputer 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 modified Change ABCD gain [Hpit] initial value (item number 336) Caution: The ABCD gain [Hpit] initial value must be changed before the overall adjustment. Change CLV drive voltage limiter (item numbers 865, 866) Change x2 CLV speed gain, +6dB compared to conventional (item numbers 867, 868) Change x2 CLV phase gain, +3dB compared to conventional (item numbers 871, 872) Change x2/x1 switching temperature threshold value (+10°C t +5°C) (item numbers 873, 874) 2. NV adjusted values modifying procedure 1) Select manual mode of the test mode, and set item number 336 (see page 14).
Remote commander LCD display
11) Adjust with the [VOLUME +] key (adjusted value up) or [VOLUME --] key (adjusted value down) so that the adjusted value becomes C9. 12) Press the X key to write the adjusted value. 13) Select manual mode of the test mode, and set item number 868 (see page 14).
Remote commander LCD display
868 V4 dat **
**: Adjusted value
14) Adjust with the [VOLUME +] key (adjusted value up) or [VOLUME --] key (adjusted value down) so that the adjusted value becomes 80. 15) Press the X key to write the adjusted value. 16) Select manual mode of the test mode, and set item number 871 (see page 14).
Remote commander LCD display
871 V5 num **
**: Adjusted value
17) Adjust with the [VOLUME +] key (adjusted value up) or [VOLUME --] key (adjusted value down) so that the adjusted value becomes CA. 18) Press the X key to write the adjusted value. 19) Select manual mode of the test mode, and set item number 872 (see page 14).
Remote commander LCD display
872 V5 dat **
**: Adjusted value
336 AbcdGn **
**: Adjusted value
2) Adjust with the [VOLUME +] key (adjusted value up) or [VOLUME --] 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 865 (see page 14).
Remote commander LCD display
20) Adjust with the [VOLUME +] key (adjusted value up) or [VOLUME --] key (adjusted value down) so that the adjusted value becomes 2D. 21) Press the X key to write the adjusted value. 22) Select manual mode of the test mode, and set item number 873 (see page 14).
Remote commander LCD display
865 V3 num **
**: Adjusted value
873 V6 num **
**: Adjusted value
5) Adjust with the [VOLUME +] key (adjusted value up) or [VOLUME --] key (adjusted value down) so that the adjusted value becomes 2C. 6) Press the X key to write the adjusted value.
23) Adjust with the [VOLUME +] key (adjusted value up) or [VOLUME --] key (adjusted value down) so that the adjusted value becomes BB. 24) Press the X key to write the adjusted value.
21
MZ-N1
25) Select manual mode of the test mode, and set item number 874 (see page 14).
Remote commander LCD display
· Adjustment method of Vc PWM Duty (H) (item number: 763)
Remote commander LCD display
874 V6 dat **
**: Adjusted value
763 VchPWM
**: Adjusted value
**
26) Adjust with the [VOLUME +] key (adjusted value up) or [VOLUME --] key (adjusted value down) so that the adjusted value becomes 05. 27) Press the X key to write the adjusted value.
1. Connect a digital voltmeter to the AP914 (VC) on the MAIN board, and adjust [VOLUME +] key (voltage up) or [VOLUME --] key (voltage down) so that the voltage becomes 2.75 ± 0.015 V.
digital voltmeter
Power Supply Manual Adjustment
· Adjustment sequence Adjustment must be done with the following steps. 1. Vc PWM Duty (L) adjustment (item number: 762) r 2. Vc PWM Duty (H) adjustment (item number: 763) r 3. Vl PWM Duty (L) adjustment (item number: 764) r 4. Vl PWM Duty (H) adjustment (item number: 765) r 5. Vrec PWM Duty (L) adjustment (item number: 766) r 6. Vrec PWM Duty (H) adjustment (item number: 767) r 7. Vd PWM Duty adjustment (item number: 768) · Setting method of power supply manual adjustment 1. Make sure that the power supply voltage is 3V. 2. Select the manual mode of the test mode (see page 14). 3. Set item number. · Adjustment method of Vc PWM Duty (L) (item number: 762)
Remote commander LCD display
MAIN board AP914 (VC) AP912 (GND)
2. Press the X key to write the adjusted value. Adjustment and Connection Location: MAIN board (see page 24) · Adjustment method of Vl PWM Duty (L) (item number: 764)
Remote commander LCD display
764 VLpwmL
**: Adjusted value
**
1. Connect a digital voltmeter to the AP915 (VL) on the MAIN board, and adjust [VOLUME +] key (voltage up) or [VOLUME 0.005 --] key (voltage down) so that the voltage becomes 2.30 + 0.01 V.
digital voltmeter MAIN board AP915 (VL) AP912 (GND)
2. Press the X key to write the adjusted value. Adjustment and Connection Location: MAIN board (see page 24) · Adjustment method of Vl PWM Duty (H) (item number: 765)
Remote commander LCD display
762 VclPWM **
**: Adjusted value
1. Connect a digital voltmeter to the AP914 (VC) on the MAIN board, and adjust [VOLUME +] key (voltage up) or [VOLUME --] 0.005 key (voltage down) so that the voltage becomes 2.40 + 0.01 V.
digital voltmeter MAIN board AP914 (VC) AP912 (GND)
765 VLpwmH
**: Adjusted value
**
1. Connect a digital voltmeter to the AP915 (VL) on the MAIN board, and adjust [VOLUME +] key (voltage up) or [VOLUME 0.005 --] key (voltage down) so that the voltage becomes 2.55 + 0.01 V.
digital voltmeter MAIN board AP915 (VL) AP912 (GND)
2. Press the X key to write the adjusted value. Adjustment and Connection Location: MAIN board (see page 24)
2. Press the X key to write the adjusted value. Adjustment and Connection Location: MAIN board (see page 24)
22
MZ-N1
· Adjustment method of Vrec PWM Duty (L) (item number: 766)
Remote commander LCD display
Temperature Correction
· Adjustment method of temperature correction 1. Select the manual mode of test mode, and set the item number 015 (see page 14).
Remote commander LCD display
766 RECpwL
**: Adjusted value
**
1. Connect a digital voltmeter to the AP611 (VREC) on the MAIN board, and adjust [VOLUME +] key (voltage up) or [VOLUME + 0.025 --] key (voltage down) so that the voltage becomes 1.08 0.005 V.
digital voltmeter MAIN board AP611 (VREC) AP912 (GND)
015 SetTmp
**: Adjusted value
**
2. Measure the ambient temperature. 3. Adjust with [VOLUME +], [VOLUME --] key so that the adjusted value (hexadecimal value) becomes the ambient temperature. (Initial value: 19h = 25 °C, Adjusting range: 80h to 7fh (128 °C to +127 °C) 4. Press the X key to write the adjusted value.
2. Press the X key to write the adjusted value. Adjustment and Connection Location: MAIN board (see page 24) · Adjustment method of Vrec PWM Duty (H) (item number: 767)
Remote commander LCD display
Laser Power Check
Connection :
laser power meter
Optical pick-up objective lens
767 RECpwH
**: Adjusted value
**
MAIN board TP (+) TP ()
digital voltmeter
1. Connect a digital voltmeter to the AP611 (VREC) on the MAIN board, and adjust [VOLUME +] key (voltage up) or [VOLUME --] key (voltage down) so that the voltage becomes 1.65 to 1.70 V.
digital voltmeter MAIN board AP611 (VREC) AP912 (GND)
Checking Method : 1. Select the manual mode of test mode (see page 14), and set the laser power adjusting mode (item number 010).
Remote commander LCD display
010 Laser
2. Press the . key continuously until the optical pick-up moves to the most inward track. 3. Open the cover and set the laser power meter on the objective lens of the optical pick-up. 4. Press the N key, and set the laser MO read adjustment mode (item number 011).
Remote commander LCD display
2. Press the X key to write the adjusted value. Adjustment and Connection Location: MAIN board (see page 24) · Adjustment method of Vd PWM Duty (item number: 768)
Remote commander LCD display
011 LrefPw
**
768 VD_PWM
**: Adjusted value
**
1. Connect a digital voltmeter to the AP911 (VD) on the MAIN board, and adjust [VOLUME +] key (voltage up) or [VOLUME --] key (voltage down) so that the voltage becomes 1.31 ± 0.010 V. digital
voltmeter MAIN board AP911 (VD) AP912 (GND)
5. Check that the laser power meter reading is 0.81 ± 0.08 mW. 6. Check that the voltage both ends (TP (+) and TP ()) of resistor R521 at this time is below 44 mV. 7. Press the N key, and set the laser CD read adjustment mode (item number 012).
Remote commander LCD display
012 HrefPw
**
2. Press the X key to write the adjusted value. Adjustment and Connection Location: MAIN board (see page 24)
8. Check that the laser power meter reading is 0.97 ± 0.10 mW. 9. Check that the voltage both ends (TP (+) and TP ()) of resistor R521 at this time is below 44 mV.
23
MZ-N1
10. Press the N key, and set the laser MO write adjustment mode (item number 013).
Remote commander LCD display
013 WritPw
**
11. Check that the laser power meter reading is 4.95 ± 0.50 mW. 12. Check that the voltage both ends (TP (+) and TP ()) of resistor R521 at this time is below 80 mV. 13. Press the x/CHG key to quit the manual mode, and activate the test mode (display check mode). Checking and Connection Location: MAIN board
Adjustment/checking and Connection Location:
MAIN Board (Conductor Side)
AP914 (VC) TP (+) TP () AP911 (VD) AP915 (VL)
R304 R3
IC303 5 4
8 9
1 16
R84
C
C521
C305 +
C306
13 12
IC301
8 9
IC551
42 43 56 1
R503 C502 C527
C510 C511 C513
FB801 FB803
R319
C217
C216
R843
C504
IC501
C519
+ C320
C218 R218 R206 SL804 L302 L301
C303 +
C505 + C301
C532
C302
C304
C925
C924
C923
D903
R517
K A A K R920 C913
R505
C514 C515 C516 22 23 C507 C506 C526 C518 + L501
C103
R519
C851
186 184 190 209 194 192 196 198 200 202 205 206 208 210 212 214 216 218 220 222 223 231 239 235 229 232 233 234
207 181 215 188 211 213 217 204 221 219 226 224 227 225 243 241 237 1 230 228 3 5 242 244 4
IC801
R866
C530
R865
C906 R934
R301
C203
R909 R910 C922 R905 R941 + C902
C914
R521 R522 56 C926 E B 1
9 11 6 7 8 245
C102
R303 R312
+ C529
C101
C202
C201
D902
14
C523
R101
R102
R935 R937
15
R202
F801
C932
C108 L303 5 C309 + 8 9 4
C208 1
C915
C921
C
+ C828
16 13 12 + C315
R903 R607
Q908
B E
C524 +
L802
C829
R911
D603
28 R605 R604 29 42 C936 2 1
C105 +
C205 +
43
R956 R958
D
S G
C
E B
R925
IC302
C307
R616
Q907 D905 D904
K C A R915 S G R916 K 1
A
Q904
R927
R309
R311
K
FB303 FB304 FB306
C335
K
D901
A
R629
C636
C107
R628
R960
R105 8 5 R103 R104
K
A
3 4 2
+ C920
C919 + B
A 5
R929
C
Q909
Q905
G D 3 5 G2 S2 S2 8 D2 4 S
R954
R959 C935 R955
C207
ECB
D301
1 4
IC603
C901 +
E RB801
C931 R938
D303
Q903
D L907
R922 + C929 + C928
B E C1 C2
IC803
1 8
FB301
R813
R928
C312 +
IC903 R961
4
+ C825
R845 1 5 8 C840 C608
+ C316
C905
R902
IC901
C
L502
R201
C908
Q501
236 238 240 17 18 19 16 36 23 12 40 24
TH601
R203
D602
R205 A K
A A
D604
K
C934 +
Q906 Q901
G1 4 S1 S1 D1 1 B1 E B2 R930 4
3 1
R953
R846
C637
TH602
R951 R950 C601
E1 C1 B2
C2 C632 E2
B1 E B2 C839
C826
Q607
D606
K A
K
A
5
+ C603
C604
C626 +
K
A
AP912 (GND)
AP611 (VREC)
24
G2 S2 S2 D2
D612
C615
D608
G1 S1 S1 D1
Q605
Q604
C609 +
R952
R204
R630
C628
Q910 E B Q911 C1 C2 B1 C Q801
IC902
MZ-N1
Overall Adjustment Mode
· Configuration of overall adjustment mode
Overall adjustment mode . key (Title display) N key Protect switch ON
· Overall adjustment mode (title display)
Remote commander LCD display
000 Assy**
: (Disc mark) At end of power supply adjustment: Outside lit At end of electrical offset adj.: Inside lit Note: On the set having microcomputer version 1.000, the disc mark is displayed on the remote commander LCD only. ** : Left side = MO overall adjustment information F*: MO overall adjustment completed 1*: Manual adjustment exists (overall adj. not completed) 0*: Not adjusted Right side = CD overall adjustment information *F: CD overall adjustment completed *1: Manual adjustment exists (overall adj. not completed) *0: Not adjusted
Note: Adjust the CD first, when performing adjustment.
CD overall adjusting
All item OK
NG item exists or x/CHG key
CD overall adjustment NG
x/CHG key CD overall adjustment OK
x/CHG key
Protect switch OFF
> key
N key
MO overall adjusting
NG item exists or x/CHG key
MO overall adjustment NG MO overall adjustment OK
· Electrical offset adjusting method Caution: The electrical offset adjustment must be made with no disc loaded. 1. Make sure that the power supply voltage is 3 V. 2. Set the test mode (see page 13). 3. Press the . or [VOLUME --] key to activate the overall adjustment mode.
Remote commander LCD display
000 Assy11
4. Turn the jog dial (down), or press the [DISPLAY] key on the remote commander.
Remote commander LCD display
x/CHG key
x/CHG key
Jog dial (down) or [DISPLAY] key on the remote commander
x/CHG key
035 Ofst**
Electrical offset adjustment
5. Electrical offset adjustment is over, if the following display appears.
Remote commander LCD display
Jog dial (up) or
[PLAYMODE] key on the remote commander Power supply
x/CHG key adjustment auto item feed
000 OfstOK
· Adjustment method of CD and MO overall adjustment mode 1. Set the test mode (see page 13). 2. Press the . or [VOLUME --] key to activate the overall adjustment mode.
Remote commander LCD display
[Test mode $display check mode%]
000 Assy11
3. Insert CD disc in the set, and press thethe . key to set the CD overall adjustment mode. Automatic adjustments are made.
Remote commander LCD display
XXX CD RUN
XXX: Item number for which an adjustment is being executed.
25
MZ-N1
4. In case of CD overall adjustment NG, reset the NV (see page 19), then readjust from the temperature correction (see page 21).
Remote commander LCD display
2. MO overall adjustment items
Item No. 112 113 114 118 221 224 232 236 244 245 121 122 134 131 132 136 144 145 138 434 431 432 436 445 411 412 448 Low reflective CD tracking error gain adjustment Low reflective CD tracking error offset adjustment Low reflective CD ABCD gain adjustment Low reflective CD focus gain adjustment Low reflective CD tracking gain adjustment MO tracking error gain adjustment MO TON offset adjustment MO TWPP gain adjustment MO triple speed read TWPP offset adjustment MO ABCD gain adjustment MO focus gain adjustment MO tracking gain adjustment MO RF gain adjustment MO write TWPP gain adjustment MO write TWPP offset adjustment MO tracking error offset adjustment MO write ABCD gain adjustment MO write tracking gain adjustment MO normal speed read TWPP offset adjustment MO tracking error offset adjustment 20 sec full recording Description
000 *** NG
**: NG item number.
MO electrical offset adjustment
5. If OK through the CD overall adjustments, then perform MO overall adjustments.
Remote commander LCD display
000 CD OK
6. Insert MO disc in the set, and press the > key to set the MO overall adjustment mode. Automatic adjustments are made.
Remote commander LCD display
XXX MO RUN
XXX: Item number for which an adjustment is being executed.
7. In case of MO overall adjustment NG, reset the NV (see page 19), then readjust from the temperature correction (see page 21).
Remote commander LCD display
000 *** NG
**: NG item number.
8. If OK through the MO overall adjustments, press the x/ CHG key to return to the test mode and terminate the overall adjustment mode.
Remote commander LCD display
000 MO OK
· CD and MO overall adjustment items 1. CD overall adjustment items
Item No. 312 313 314 321 328 324 332 336 344 345 521 522 CD tracking error gain adjustment CD TWPP gain adjustment CD tracking error offset adjustment CD ABCD gain adjustment CD focus gain adjustment CD tracking gain adjustment CD two-axis sensitivity adjustment Description CD electrical offset adjustment
Resume Clear
Perform the Resume clear when all adjustments completed. · Resume clear setting method 1. Select the manual mode of the test mode, and set item number 043 (see page 14).
Remote commander LCD display
043 Resume CC
2. Press the X key.
Remote commander LCD display
043 Res***
Resume clear complete
043 ResClr
3. Press the x/CHG key to return to the test mode (display check mode).
26
MZ-N1
Rewriting the Patch Data at Replacement of Main Board or Nonvolatile Memory (IC802)
This set requires the patch data in the nonvolatile memory (IC802) to be rewritten using the application, when the MAIN board or nonvolatile memory (IC802) was replaced. Caution: The application that meets the microcomputer version in this set must be used when rewriting the patch data. Rewriting the patch data using the application not suitable for the microcomputer version could cause the set to malfunction. For a checking method of the microcomputer version, see "SECTION 4 TEST MODE" (page 13). · Preparation 1. USB cradle (attached to the set) 2. USB cable (attached to the set) 3. Personal computer in which the Net MD Driver has been installed. (For further information, see "System requirements" (page 4) in "SECTION 1 SERVICING NOTES") 4. Application "PatchWriter" for patch data rewriting · How to get the application "PatchWriter" for patch data rewriting Download it from the following homepage. Name: ESI HomePage URL: http: //43.7.134.23/index.htm · Pre-check 1. Check the microcomputer version in this set. (For a checking method of the microcomputer version, see "SECTION 4 TEST MODE" (page 13).) 2. Check that the Net MD Driver has been installed in the personal computer. 3. Make sure that the set is in the Normal mode.
Note: Do not rewrite the patch data in the Test mode.
· Rewriting the patch data 1. Connect the USB cradle to the personal computer with the USB cable, and place the set on the USB cradle. 2. Start the application "PatchWriter". 3. Make sure that the following window opens. 4. Click the [Usb Connect] button.
27
MZ-N1
5. Confirm that the model and version indicated on the title bar coincide with the codes displayed in the Device Name block and the Version block in the window.
6. Click the [Write + Verify] button. The patch data writing and the verify processing will be executed automatically in the following order: 1) Writing to patch area (front area) 2) Writing to patch area (reverse area) 3) Verifying patch area (front area) 4) Verifying patch area (reverse area) 7. The operation will terminate with the a mark given to all areas. If the × mark is given to any area, the nonvolatile memory will be faulty.
28
MZ-N1
8. Click the [Usb Disconnect] button.
10. Disconnect the USB cable from the personal computer and the USB cradle. 11. Remove the set from the USB cradle.
9. Confirm that the window becomes as shown below where the [Write + Verify] button and [Read] button are inactive.
29
29
MZ-N1 SECTION 6 DIAGRAMS
6-1. BLOCK DIAGRAM SERVO/USB Section
OVER WRITE HEAD DRIVE IC601 (1/2) HR601 OVER WRITE HEAD 35 HB EFM PRE DRIVER EFM CLK H-BRIDGE PRE DRIVER VRECIN2 VRECIN1 C1H SYSTEM CONTROL (1/2)
SW RECON OE
OPTICAL PICK-UP BLOCK (LCX-5R)
OVER WRITE HEAD DRIVE Q604, 605
7 4 37 42 28 27 31 30 VRECO B+ CLK
33 M603 OVER WRITE HEAD UP/DOWN 41 38
HA OUTA OUTB
D
(Page 32)
RF AMP, FOCUS/TRACKING ERROR AMP IC501 4 VREF + IY IX JX JX JY JX JY IX IY IX A B
M
· SIGNAL PATH : PLAYBACK : REC (ANALOG IN) : REC (DIGITAL IN) : USB CHECK OUT
230
EFMO
CHARGE PUMP 1 CHARGE PUMP 2
C1L C2H
1 2 3 142 141 140 33 29 28 41 42 163 RFI 169 PEAK 170 BOTM 171 ABCD 172 FE 181 TE 202 ADFG
MODE3 MODE2 MODE1
LD
2-AXIS DEVICE (FOCUS) (TRACKING)
CPWO1
52
CLV MON W
53
CLV MON V
30
30
CLV MON U
CPUO1
CPVO1
+
MON
+
D
+
C
+
A BC D
8 9 10 11 12 14 5 6
IY IX JX JY A B C D A-C
HD CON2 HD CON1
RF OUT PEAK /BOTM PEAK BOTM ABCD FE
RI FI
25 VREF
C2L
+ + + + LD-A AUTOMATIC POWER CONTROL Q501 S0 S1 TRK+ TRK+ TRK FCS+ FCS TRK U FCS+ FCS M602 (SLED) W V RF AMP, FOCUS/ TRACKING ERROR AMP 13 D-C 7 18 PD-NI TE 1 ADIP IN 44 TPP/WPP ADFG 21 PD-I 19 APC 206 APCREF OFTRK 26 VC 31 174 VC 108 VREF MON 20 PD-O XRST SERIAL INTERFACE SBUS 23 SCK 24 S-MON 43 27 SSB DATA 28 SSB CLK 180 SE TRK+ TRK 80 PD S0 81 PD S1 FCS+ FCS 25 75 XRF RST S-MONITER SLD MON U SLD MON V SLD MON W U M601 (SPINDLE) W V
5 6 145 143
DIN1 190
DIN1
A B C
(Page 31)
SYSTEM CONTROLLER, DIGITAL SIGNAL PROCESSOR, 16M BIT D-RAM IC801 (1/3)
ADDT 195 AOUTL
ADDT AOUTL, AOUTR
(Page 31)
AOUTL 155
(Page 31)
AOUTR 156 234 MNT3
AOUTR
UDP 134 UPUEN 135 UDM 133 FOCUS/TRACKING COIL DRIVE, SPINDLE/SLED MOTOR DRIVE IC551 FO2 30 RO2 32 FO1 13 RO1 11 FI2 28 RI2 27 FI1 15 RI1 16 PWM2 44 UI2 SLED MOTOR DRIVE VI2 WI2 43 42 41 UOSCI 137 UOSCO 138
5 D+ 4 D CN601 (1/2) USB CRADLE CONNECTOR
X801 48MHz
TRACKING COIL DRIVE FOCUS COIL DRIVE
208 TFDR 207 TRDR 209 FFDR 210 FRDR 220 SFDR 84 SLD MON 219 SLDR 221 SLDV 222 SLDW SLD MON U SLD MON V SLD MON W
35 25 37 24 39 23 26
UO2 CPUI2 VO2 CPVI2 WO2 CPWI2 COM2
SLCU 225 SLCV 226 SLCW 227
CPUO2 45 CPVO2 46 CPWO2 47
PWM1 SLED VOLTAGE MONITER
55
213 SPFD
8 18 6 19
UO1 CPUI1 VO1 CPVI1 SPINDLE MOTOR DRIVE
UI1 VI1 WI1
56 1 2
76 SPDL MON 212 SPRD SPCU 216 214 SPDV SPCV 217 215 SPDW SPCW 218 CLV MON W CLV MON V CLV MON U
WO1 4 CP