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Service Manual
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MZ-N505
SERVICE MANUAL
Ver 1.0 2002. 01
US Model Canadian Model AEP Model UK 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
MZ-N707 MT-MZN707-177 LCX-5R
SPECIFICATIONS
MD Recorder Audio playing system
MiniDisc digital audio system
Laser diode properties
Material: GaAlAs MQW Wavelength: = 790 nm Emission duration: continuous Laser output: less than 44.6 µW (This output is the value measured at a distance of 200 mm from the lens surface on the optical pick-up block with 7 mm aperture.)
Recording and playback time
When using MDW-80 Maximum 160 min. in monaural Maximum 320 min. in stereo
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
Continued on next page
PORTABLE MINIDISC RECORDER
9-873-459-01
2002A0500-1 C 2002.1
Sony Corporation
Personal Audio Company Published by Sony Engineering Corporation
MZ-N505
Coding
ATRAC (Adaptive TRansform Acoustic Coding) A RAC3 -- LP2/LP4 T
Battery life 1)
When recording 2)
Modulation system
EFM (Eight to Fourteen Modulation)
Number of channels
2 stereo channels 1 monaural channel
Batteries
(Unit: approx.hours)(JEITA3)) SP LP2 LP4 Stereo Stereo Stereo 4 6 7.5
Frequency response
20 to 20,000 Hz ± 3 dB
Wow and Flutter
Below measurable limit
NC-WMAA Nickel Cadmium rechargeable battery4) LR6 (SG) Sony alkaline dry battery5)
Inputs
Line in: stereo mini-jack, minimum input level 49 mV Optical (Digital) in: optical (digital) mini-jack
9
13
16
Outputs
i: stereo mini-jack, maximum output level 5 mW + 5 mW, load impedance 16 ohm (except US model) 5 mW + 5 mW, load impedance 24 ohm (US model only)
1) The battery life may be shorter due to operating
General Power requirements
Sony AC Power Adaptor (supplied) connected at the DC IN 3 V jack (country model in parentheses): 120 V AC, 60 Hz (USA, Canada) 230 V AC, 50/60 Hz (Continental Europe) 230 - 240 V AC, 50 Hz (UK) Nickel Cadmium rechargeable battery NCWMAA (supplied) LR6 (size AA) alkaline battery (not supplied)
conditions, the temperature of the location, and varieties of batteries. 2) When you record, use a fully charged rechargeable battery. Recording time may differ according to the alkaline batteries. 3) Measured in accordance with the JEITA (Japan Electronics and Information Technology Industries Association) standard. 4) When using a 100% fully charged rechargeable battery. 5) When using a Sony LR6 (SG) "STAMINA " alkaline dry battery (produced in Japan).
When playing
Dimensions Mass
Approx. 81 × 27.9 × 74.4 mm (w/h/d) (31/4 × 11/8 × 3 in.) without projections. Approx. 104 g (3.7 oz) the recorder only
(Unit: approx.hours)(JEITA1)) Batteries SP LP2 LP4 Stereo Stereo Stereo NC-WMAA Nickel Cadmium rechargeable battery2) 15 16 20
Supplied accessories NC-WMAA Nickel Cadmium rechargeable battery (European model only) (1) AC power adaptor (1) Headphones/earphones with a remote control (1) Optical cable (European model only) (1) USB cable (1) Battery carrying case (1) Carrying case with a belt clip (European model only) (1) CD-ROM (1)* Minidisc (blank) (US and Canadian models only) (1)
Do not play a CD-ROM on an audio CD player.
Design and specifications are subject to change without notice.
42 LR6 (SG) Sony alkaline dry battery3)
1) Measured
48
56
in accordance with the JEITA (Japan Electronics and Information Technology Industries Association) standard. 2) When using a 100% fully charged rechargeable battery. 3) When using a Sony LR6 (SG) "STAMINA " alkaline dry battery (produced in Japan).
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.
ATTENTION AU COMPOSANT AYANT RAPPORT À LA SÉCURITÉ! LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMATIQUES 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.
2
MZ-N505
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 ........................................................... Case (Lower) ................................................................... Case (Upper) Section ...................................................... LCD Module, Case (Upper) Sub Assy ........................... Mechanism Deck (MT-MZN707-177) ........................... Set Chassis (5188) Assy .................................................. MAIN Board ................................................................... 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 current, Nickel Cadmium rechargeable battery, LR6 (size AA) battery, or car battery. · For use in your house: Use the AC power adaptor supplied with this recorder. Do not use any other AC power adaptor since it may cause the recorder to malfunction.
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
32 33 34 35 36 37 38 39 40 41 48
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
Case Section .................................................................... Chassis Section ............................................................... MAIN Board Section ...................................................... Mechanism Deck Section-1 (MT-MZN707-177) ........... Mechanism Deck Section-2 (MT-MZN707-177) ........... 55 56 57 58 59
8.
ELECTRICAL PARTS LIST ............................... 60
3
MZ-N505 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 (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.)
·
· · ·
laser-tap
·
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 digitalplayback 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 withthe 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 followingexamples: Windows ® 3.1/Windows® 95 t Windows® 98 (or Windows® 98 Second Edition/ Windows ® Me) Windows ® Me/Windows® 2000 Professionalt Windows ® XP ® Multi-bootenvironment withWindows ® 2000 (or Windows XP) and Windows® 98 (or Windows ® 98 Second Edition/ indows ® Me) W Display: High (16bit) Color or more (800 × 480 dot or more) Internet access: for Web registration and EMD services Internet access: for sfortware upgrades and CDDB2 use. (US and Canadian models) Windows Media Player (version 7.0 or higher) installed for playing WMAfiles.
Notes
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 (S806 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.
· Trouble-free operation is not assured withina multiple-monitor environment. · We do not assure trouble-free operation for all computers satisfying the system requirements. · Trouble-free operation is not guaranteed followingthe 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 digitaloutput connector (on computers provided withone) may be disabled duringplayback 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
FLEXIBLE board (over write head)
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].
case (upper)
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
S806
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.
4
MZ-N505 SECTION 2 GENERAL
Lookingat the controls
The recorder
6
This section is extracted from instruction manual.
The display window of the recorder
A B C DE F G H
LP2.4
Digital MEGA BASS
1
CHARGE
7 8 2 3 9 q; qa qs qd qf qg
G Display window H GROUP/CANCEL button I T MARK/REC button J HOLD switch K USB connecting jack L Battery compartment M LINE IN (OPTICAL) jack N MENU/ENTER button O i (headphones/earphones) jack
I
J
K
L
M
N
A MONO (monaural) indication B LP mode indication C Mega bass indication D Disc indication
H REC indication
4 5
A OPEN button B END SEARCH button C X (pause) button D DC IN 3V jack E VOL +/ button
The VOL + button has a tactile dot.
F N (play) button
The N button has a tactile dot. ./> (search/AMS) button x (stop)/CHARGE button
Shows that the disc is rotating for recording, playing or editing an MD. E Level meter Shows the volume of the MD being played or recorded. F REC REMAIN/REMAIN (remaining time/tracks) indication Lights up along with the remaining time of the track, the remaining time of the MD, or the remaining number of tracks. G SYNC (synchro-recording) indication
I J K
L M
N
Lights up while recording. When flashing, the recorder is in record standby mode. Battery indication Shows approximate battery condition. Time display Disc name/track name indication Lights up when labeling a disc or a track. Group indication Lights up when group mode is on. Character information display Displays the disc and track names, error messages, track numbers, etc. Play mode indication Shows play mode of the MD.
10
11
The headphones/earphoneswith a remote control
F
A B C D E G H I
A ./>/N (search/AMS/play) · B C D E
F Headphones/earphones
>/. button x (stop) · ENTER button X (pause) · CAPS button EDIT button VOL +/ button
Can be replaced with optional headphones/earphones. G HOLD switch Slide to lock the controls of the remote control. H T MARK button I DELETE button
12
5
MZ-N505 SECTION 3 DISASSEMBLY
· This set can be disassembled in the order shown below.
3-1.
DISASSEMBLY FLOW
SET
3-2. CASE (LOWER) (Page 7)
3-3. CASE (UPPER) SECTION (Page 7)
3-4. LCD MODULE, CASE (UPPER) SUB ASSY (Page 8)
3-5. MECHANISM DECK (MT-MZN707-177) (Page 8)
3-6. SET CHASSIS (5188) ASSY (Page 9)
3-8. OP SERVICE ASSY (LCX-5R) (Page 10)
3-10. DC MOTOR (SLED) (M602) (Page 11)
3-7. MAIN BOARD (Page 9)
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-N505
Note: Follow the disassembly procedure in the numerical order given.
3-2.
CASE (LOWER)
1 two screws (M1.4)
1 two screws (M1.4)
2 Remove the case (lower) in the direction of the arrow.
3-3.
CASE (UPPER) SECTION
6 case (upper) section
1 flexible board (CN801)
Set chassis (5188) assy
5 boss
3 two screws (M1.4)
case (upper) torsion spring (p up-L)
4 torsion spring (pop up-L)
2 Slide the open slider in the direction of the arrow, and open the case (upper) section.
7
MZ-N505
3-4.
LCD MODULE, CASE (UPPER) SUB ASSY
1 four screws (1.7 × 2.5) 2 LCD module
Note: On installation, adjust the position of both switch and knob (hold).
switch
3 button (control)
4 case (upper) sub assy
knob (hold)
3-5.
MECHANISM DECK (MT-MZN707-177)
3 step screw (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).
8
MZ-N505
3-6.
SET CHASSIS (5188) ASSY
2 two screws (1.7 × 2.5) 3 set chassis (5188) assy
1 four screws (M1.4 × 2)
3-7.
MAIN BOARD
3 battery case
4 main board
1 battery terminal board (+)
2 battery terminal ()
9
MZ-N505
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-N505
3-9.
HOLDER ASSY
4 holder assy
2 Open the holder assy
3 boss 1 convex portion
3 boss
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-N505
3-11. DC SSM18B MOTOR (SPINDLE) (M601), DC MOTOR (OVER WRITE HEAD UP/DOWN) (M603)
1 Remove six solders of the motor flexible board. 2 tapping screw 3 motor cover 7 DC motor (over write head up/down) (M603)
Note: Press-fit the gear (HA) up to the position of the DC motor (over write head up/down) (M603) as shown below.
8 three tapping screws 6 gear (HA)
gear (HA) 3.15 mm
4 gear (HB)
DC motor (over write head up/down) (M603)
5 gear (HC)
9 DC SSM18B motor (spindle) (M601)
12
MZ-N505 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.
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.
Set LCD display
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 MAIN Board (Conductor Side)
All lit
All off
Microcomputer version display
V1.100
· 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.
C815 C821
SL801 (TEST) C816 R822
R825 R824
SL801 (TEST)
+
+
+ C809
C822
R823
R857
C817
2 In the normal mode, turn on the [HOLD] switch. While pressing 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 key, press the keys on the remote commander with the following order: > t > t . t . t > t . t > 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.
R827
96 194 190 186 182 187 189 193 98 192 209 184 183 185 191 197 195 203 199 180 178 17 211 215 207 173 175 176 174 04 213 188 181 179 171 172 170 177 169
R817 R821
C814
R858
FB801 C839
C625
13
MZ-N505
CONFIGURATION OF TEST MODE [Test Mode $Display Check Mode%] Press the > or [VOL +] key [Manual Mode]
Press the x key
[Major item switching]
N key x key
[VOL +] key: 100th place of item
number increase.
[VOL --] key: 100th place of item
number decrease.
[Servo Adjustment] [Audio Adjustment] [Power Supply Adjustment] [OP Alignment Adjustment] [Overall Adjustment Mode]
[Medium item switching]
N key x key
[VOL +] key: 10th place of item
number increase.
[VOL --] key: 10th place of item
number decrease.
> key: Unit place of item number
Press the . or [VOL --] key Press the x key
[Minor item switching]
increase.
. key: Unit place of item number
[Electrical Offset Adjustment]
Power Supply Adjustment Auto Item Feed CD Overall Adjustment/ MO Overall Adjustment
decrease.
[Adjusted value variation] [VOL +] key: Increases the adjusted
value of the 1st digit
Press the [MENU/ENTER] key
[Self-Diagnosis Result Display Mode]
Press the x key Press the N or N and [T MARK/REC] keys
[VOL --] key: Decreases the adjusted
value of the 1st digit
[Sound Skip Check Result Display Mode]
Press the x key Press the [T MARK/REC] and X keys
[Adjusted value write]
X key: When adjusted value is
[Key Check Mode]
The key check quits, or open the upper panel
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.
Set LCD display
changed: Adjusted value is written. When adjusted value is not changed: That item is adjusted automatically.
000
Manual
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-N505
5. The display changes a shown below each time the [MENU/ENTER] key .
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).
· Address & Adjusted Value Display
Set LCD display
SELF-DIAGNOSIS RESULT DISPLAY MODE
011
item number Set LCD display
C68S1B
address adjusted value
· Jitter Value & Adjusted Value Display
011
item number Set LCD display
0FEJ1B
jitter value adjusted value
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, [MENU/ENTER] key activates the self-diagnosis result display mode where the LCD display as shown below.
Set LCD display
· Block Error Value & Adjusted Value Display
011
item number Set LCD display
063B1B
block error adjusted value value
· ADIP Error Value & Adjusted Value Display
0XX
error display code
1 0000
history code Total recording time when error occurred
011
item number Set LCD display
081A1B
ADIP error adjusted value value
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.
1
· Focus Drive Value & Adjusted Value Display
0XX 0XX 0XX 0XX 0XX
1 **** N **** N1**** N2**** R_****
1
011
item number
000F1B
Focus adjusted value drive value
· Item Title Display
Set LCD display
011
item number
LrefPw
item title
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 key to return to the test mode (display check mode).
If the [MENU/ENTER] 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 key to return to the test mode (display check mode).
15
MZ-N505
· 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 Disc error 35 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 MD DATA 2 disc 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 MD DATA 2 disc error Temp Fcus Spdl TOC Data LBat Ofst ABCD TE X1TE MD2
· 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
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/ENTER] 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)
16
MZ-N505
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 N and [T MARK/REC] keys, and the playing or recording sound skip result display mode becomes active respectively where the LCD displays the following.
Set LCD display
· 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
000
P**R**
Total count of play system errors (hex.) Total count of record system errors (hex.)
4. To quit the sound skip check result display mode and to return to the test mode (display check mode), press the x key. · Setting Method of Key Check Mode 1. Set the test mode (see page 13). 2. Press the [T MARK/REC] and X keys on the remote commander 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
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 N and [T MARK/REC] keys are pressed, the display in the record mode appears. When the N and [T MARK/REC] keys are 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
004
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:
Set LCD display
000 P**R** 000 EIB ** 000 Stat** 000 Adrs** 000 BEmp** 000 ######
000 P* * R * * 000 BO v r * * 000 Bf u l * * 000 Rt r y * * 000 ## # # # #
004
Set LCD display
FF
Example2: When the > key on the remote commander is pressed:
P**R**: Total play/record errors (hex.) ** : Counter of sound skip check each item (hex.) ######: 6-digit address where sound was skipped last (hex.)
004
rPLAY
17
MZ-N505
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:
Set LCD display
888
Set LCD display
SET OK
Example2: When the keys on the remote commander are considered as OK:
888
RMC 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.
18
MZ-N505 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.
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 (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) r 2. Power Supply Manual Adjustment r 3. Temperature Correction (item number: 015) r 4. Laser Power Check r 5. Electrical Offset Adjustment Caution: This adjustment must be made with no disc loaded. r 6. CD Overall Adjustment r 7. MO Overall Adjustment r 8. RESUME Clear
021
###: Address
###SCC
2. Press the X key.
Remote commander LCD display
ADJUSTMENT SEQUENCE
021
Manual Mode Manual Mode
ResOK?
3. Press the X key once more.
Remote commander LCD display
Manual Mode
021
Res***
NV reset (after several seconds)
Overall Mode
Remote commander LCD display
Manual Mode
021
Reset!
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 [END SEARCH] key in the overall adjustment mode.
4. Press the x key to quit the manual mode, and return the test mode (display check mode).
19
MZ-N505
· 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 BatFlg value (item number 741) Change NiRec0 to 4 values (item numbers 771 to 775) Change NiPb 1 to 4 values (item numbers 776 to 779, 781) 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).
Set LCD display
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).
Set LCD display
772
**: Adjusted value
AD **
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).
Set LCD display
773
**: Adjusted value
AD **
14) Adjust with the [VOL +] key (adjusted value up) or [VOL --] key (adjusted value down) so that 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).
Set LCD display
336
###: Address **: Adjusted value
###S**
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).
Set LCD display
774
**: Adjusted value
AD **
17) Adjust with the [VOL +] key (adjusted value up) or [VOL --] key (adjusted value down) so that 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).
Set LCD display
741
**: Adjusted value
AD **
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).
Set LCD display
775
**: Adjusted value
AD **
20) Adjust with the [VOL +] key (adjusted value up) or [VOL --] key (adjusted value down) so that 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).
Set LCD display
771
**: Adjusted value
AD **
8) Adjust with the [VOL +] key (adjusted value up) or [VOL --] key (adjusted value down) so that the adjusted value becomes 6E.
776
**: Adjusted value
AD **
20
MZ-N505
23) Adjust with the [VOL +] key (adjusted value up) or [VOL --] key (adjusted value down) so that 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).
Set LCD display
37) Select manual mode of the test mode, and set item number 865 (see page 14).
Set LCD display
865
###: Address **: Adjusted value
###S**
777
**: Adjusted value
AD **
26) Adjust with the [VOL +] key (adjusted value up) or [VOL --] key (adjusted value down) so that the adjusted value becomes 7B. 27) Press the X key to write the adjusted value. 28) Select manual mode of the test mode, and set item number 778 (see page 14).
Set LCD display
38) Adjust with the [VOL +] key (adjusted value up) or [VOL --] key (adjusted value down) so that the adjusted value becomes 2C. 39) Press the X key to write the adjusted value. 40) Select manual mode of the test mode, and set item number 866 (see page 14).
Set LCD display
866 778
**: Adjusted value
###S**
AD **
###: Address **: Adjusted value
29) Adjust with the [VOL +] key (adjusted value up) or [VOL --] key (adjusted value down) so that the adjusted value becomes 7D. 30) Press the X key to write the adjusted value. 31) Select manual mode of the test mode, and set item number 779 (see page 14).
Set LCD display
41) Adjust with the [VOL +] key (adjusted value up) or [VOL --] key (adjusted value down) so that the adjusted value becomes B9. 42) Press the X key to write the adjusted value. 43) Select manual mode of the test mode, and set item number 867 (see page 14).
Set LCD display
779
**: Adjusted value
AD **
867
###: Address **: Adjusted value
###S**
32) Adjust with the [VOL +] key (adjusted value up) or [VOL --] key (adjusted value down) so that the adjusted value becomes 7F. 33) Press the X key to write the adjusted value. 34) Select manual mode of the test mode, and set item number 781 (see page 14).
Set LCD display
44) Adjust with the [VOL +] key (adjusted value up) or [VOL --] key (adjusted value down) so that the adjusted value becomes C9. 45) Press the X key to write the adjusted value. 46) Select manual mode of the test mode, and set item number 868 (see page 14).
Set LCD display
781
**: Adjusted value
AD **
868
###: Address **: Adjusted value
###S**
35) Adjust with the [VOL +] key (adjusted value up) or [VOL --] key (adjusted value down) so that the adjusted value becomes 81. 36) Press the X key to write the adjusted value.
47) Adjust with the [VOL +] key (adjusted value up) or [VOL --] key (adjusted value down) so that the adjusted value becomes 80. 48) Press the X key to write the adjusted value.
21
MZ-N505
49) Select manual mode of the test mode, and set item number 871 (see page 14).
Set LCD display
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) · 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)
Set LCD display
871
###: Address **: Adjusted value
###S**
50) Adjust with the [VOL +] key (adjusted value up) or [VOL --] key (adjusted value down) so that the adjusted value becomes CA. 51) Press the X key to write the adjusted value. 52) Select manual mode of the test mode, and set item number 872 (see page 14).
Set LCD display
872
###: Address **: Adjusted value
###S**
53) Adjust with the [VOL +] key (adjusted value up) or [VOL --] key (adjusted value down) so that the adjusted value becomes 2D. 54) Press the X key to write the adjusted value. 55) Select manual mode of the test mode, and set item number 873 (see page 14).
Set LCD display
762
**: Adjusted value
AD **
1. Connect a digital voltmeter to the AP912 (VCO) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 2.40 ± 0.05 V.
873
###: Address **: Adjusted value
###S**
digital voltmeter MAIN board AP912 (VCO) AP602 (GND)
56) Adjust with the [VOL +] key (adjusted value up) or [VOL --] key (adjusted value down) so that the adjusted value becomes BB. 57) Press the X key to write the adjusted value. 58) Select manual mode of the test mode, and set item number 874 (see page 14).
Set LCD display
2. Press the X key to write the adjusted value. Adjustment and Connection Location: MAIN board (See page 25) · Adjustment Method of Vc PWM Duty (H) (item number: 763)
Set LCD display
874
###: Address **: Adjusted value
###S** 763
**: Adjusted value
59) Adjust with the [VOL +] key (adjusted value up) or [VOL --] key (adjusted value down) so that the adjusted value becomes 05. 60) Press the X key to write the adjusted value.
AD **
1. Connect a digital voltmeter to the AP912 (VCO) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 2.50 ± 0.05 V.
digital voltmeter MAIN board AP912 (VCO) AP602 (GND)
22
MZ-N505
2. Press the X key to write the adjusted value. Adjustment and Connection Location: MAIN board (See page 25) · Adjustment Method of Vl PWM Duty (L) (item number: 764)
Set LCD display
1. Connect a digital voltmeter to the TP (VREC) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 1.13 ± 0.02 V.
digital voltmeter MAIN board TP (VREC) AP602 (GND)
764
**: Adjusted value
AD **
2. Press the X key to write the adjusted value. Adjustment and Connection Location: MAIN board (See page 25) · Adjustment Method of Vrec PWM Duty (H) (item number: 767)
Set LCD display
1. Connect a digital voltmeter to the AP913 (VLO) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 2.30 ± 0.01 V.
digital voltmeter MAIN board AP913 (VLO) AP602 (GND)
767
**: Adjusted value
AD **
2. Press the X key to write the adjusted value. Adjustment and Connection Location: MAIN board (See page 25) · Adjustment Method of Vl PWM Duty (H) (item number: 765)
Set LCD display
1. Connect a digital voltmeter to the TP (VREC) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 1.65 to 1.75 V.
digital voltmeter MAIN board TP (VREC) AP602 (GND)
2. Press the X key to write the adjusted value.
765
**: Adjusted value
AD **
Adjustment and Connection Location: MAIN board (See page 25)
1. Connect a digital voltmeter to the AP913 (VLO) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 2.55 ± 0.01 V.
digital voltmeter MAIN board AP913 (VLO) AP602 (GND)
TEMPERATURE COREECTION
· Adjustment Method of Temperature Correction 1. Select the manual mode of test mode, and set the item number 015 (see page 14).
Set LCD display
015
###: Address **: Adjusted value
###S**
2. Press the X key to write the adjusted value. Adjustment and Connection Location: MAIN board (See page 25) · Adjustment Method of Vrec PWM Duty (L) (item number: 766)
Set LCD display
2. Measure the ambient temperature. 3. Adjust with [VOL +], [VOL --] 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.
766
**: Adjusted value
AD **
23
MZ-N505
LASER POWER CHECK
· Connection
laser power meter
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 key to quit the manual mode, and activate the test mode (display check mode). Checking and Connection Location: MAIN board (See page 25)
Optical pick-up objective lens
digital voltmeter MAIN board TP (+) TP ()
· Checking Method 1. Select the manual mode of test mode (see page 14), and set the laser power adjusting mode (item number 010).
Set 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).
Set LCD display
011
###: Address **: Adjusted value
###S**
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).
Set LCD display
012
###: Address **: Adjusted value
###S**
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. 10. Press the N key, and set the laser MO write adjustment mode (item number 013).
Set LCD display
013
###: Address **: Adjusted value
###S**
24
MZ-N505
Adjustment/checking and Connection Location: MAIN Board (Component Side)
TP (-)
1 C803
Q501
C B
R519
F801
CN501
R521
R522
+
S806 (OPEN/CLOSE DETECT) C630 L902 R105 + +
L502
+
C518
+
20
L904
L501
C904
C104
C204
E
J302
R853
C316
C913
L901
L905
TP (+)
MAIN Board (Conductor Side)
AP913 (VLO)
C504
C529 + C506 24 + C507 R505 C513 C527 C514
AP912 (VCO)
2 22 20 42 46 50 56 60 39 15 43 14 47 44 51 48 54 52 58 62 66 70 64 68 73
C824 C805 R861 R836 R804
IC801
*
C516
C515
R517
C530
Q901
ECB R920 R916 C912
22
23 C523
R921 R908
C802
R834
Q801
R907
C909 C2 R810
C838
C914 4
C910
C826
R864
R801
C1
1
B1 E B2
R852
C924
Q904
E
C926
56
R911
+
B
R927
L801
C804 R826
R835
R843
FB806
X802
IC501
C832 C833 R838 R
859
906
142 143 138 139 134 147 137 130 126 128 122 124 135 120 71 63 80 84 88 92 94 100 104 108 114 101115 141 109 105 103 69 61 82 86 90 95 98 102 106 110 112 116118 113 111 107 136 151 10 41 132 140 45 129 131 49 119 133 53 72 57 59 77 81 79 83 87 93 96 117 121 123 55 67 65 74 78 76 75 85 89 91 97 99 127 125
TP (VREC)
L602
C928
C639
IC901
43 9 K
C
AP602 (GND) C613 C614 42 29 28 C618 C616 C619 R613
C915 C917 R946
C911 +
4
Q602
1 R606 R622 R624 R608 C607 43
C629
+ C632
R906
R612
A
R948
R626
R604
R605
C901 +
C902 +
C622 +
R615
56
15 1 14
R621
+
AP602 (GND)
K
R620
1
4
D608
5
8
C603
C633
A
A
IC601
R614
C621
D901
+ C919
8
5
D606
42
K
C609 + 4 1
Q605
Q604
5
8
25
MZ-N505
OVERALL ADJUSTMENT MODE
· Configuration of Overall Adjustment Mode
Overall adjustment mode . key (Title display) N key Protect switch ON
· Overall adjustment mode (title display)
Set LCD display
000
CD overall adjusting
Assy**
All item OK
NG item exists or x key
CD overall adjustment NG
x key CD overall adjustment OK
: (Disc mark) At end of power supply adjustment: Outside lit At end of electrical offset adj.: Inside lit ** : 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.
x key
Protect switch OFF
> key
N key
MO overall adjusting
NG item exists or x 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 [VOL --] key to activate the overall adjustment mode.
Set LCD display
x key
x key
000
Electrical offset adjustment Temperature correction and Power supply adjustment auto item feed
Assy11
4. Press the [MENU/ENTER] key on the remote commander.
[MENU/ENTER] key
x key
Set LCD display
[END SEARCH] key
x key
035
Set LCD display
Ofst**
[Test mode $display check mode%]
5. Electrical offset adjustment is over, if the following display appears.
000
OfstOK
· Adjustment Method of CD and MO Overall Adjustment Mode 1. Set the test mode (see page 13). 2. Press the . or [VOL --] key to activate the overall adjustment mode.
Set LCD display
000
26
Assy11
MZ-N505
3. Insert CD disc in the set, and press thethe . key to set the CD overall adjustment mode. Automatic adjustments are made.
Set LCD display
· CD and MO Overall Adjustment Items 1. CD overall adjustment items
Item No. 312 313 Description CD electrical offset adjustment 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
XXX
CD RUN
314 321 328 324 332 336 344 345 521
XXX: Item number for which an adjustment is being executed.
4. In case of CD overall adjustment NG, reset the NV (see page 19), then readjust from the temperature correction (see page 22).
Set LCD display
000
***: NG item number.
*** NG
522
2. MO overall adjustment items
Item No. 112 113 114 118 221 224 232 236 244 245 121 122 134 Description
5. If OK through the CD overall adjustments, then perform MO overall adjustments.
Set LCD display
MO electrical offset adjustment
000
CD OK
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
6. Insert MO disc in the set, and press the > key to set the MO overall adjustment mode. Automatic adjustments are made.
Set LCD display
XXX
MO RUN
131 132 136 144 145 138 434 431 432
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 22).
Set LCD display.
000
***: NG item number
*** NG
436 445 411 412 448
8. If OK through the MO overall adjustments, press the x key to return to the test mode and terminate the overall adjustment mode.
Set LCD display
000
MO OK
27
MZ-N505
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).
Set LCD display
043
###: Address
###S00
2. Press the X key.
Set LCD display
043
Res**
Resume clear complete
043
ResClr
3. Press the x key to return to the test mode (display check mode).
28
MZ-N505
REWRITING THE PATCH DATA AT REPLACEMENT OF MAIN BOARD OR NONVOLATILE MEMORY (IC804)
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. 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 cable (attached to the set) 2. Personal computer in which the Net MD Driver has been installed. (For further information, see "System requirements" (page 4) in "SECTION 1 SERVICING NOTES") 3. Application "PatchWriter" for patch data rewriting · How to Get the Application "PatchWriter" for Patch Data Rewriting Contact our service technical support division to get the application. · 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 set to the personal computer with the USB cable. 2. Start the application "PatchWriter". 3. Make sure that the following window opens. 4. Click the [Usb Connect] button.
29
MZ-N505
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.
30
MZ-N505
8. Click the [Usb Disconnect] button.
9. Confirm that the window becomes as shown below where the [Write + Verify] button and [Read] button are inactive.
10. Disconnect the USB cable from the personal computer and the set.
31
31
MZ-N505 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 7 4 VRECO B+ CLK
OPTICAL PICK-UP BLOCK (LCX-5R)
OVER WRITE HEAD DRIVE Q604, 605
33 M603 OVER WRITE HEAD UP/DOWN 41 38
HA OUTA OUTB
D
(Page 34)
RF AMP, FOCUS/TRACKING ERROR AMP IC501 4 VREF + IY IX JX JX JY JX JY IX IY IX A B
M
SYSTEM CONTROL (1/2)
37 VRECIN1 42 C1H 28 CHARGE PUMP 1 C1L 27 C2H CHARGE PUMP 2 31 30
· SIGNAL PATH : PLAYBACK : REC (ANALOG IN) : REC (DIGITAL IN) : USB CHECK OUT
230
1 2 3 142 141 140
LD
2-AXIS DEVICE (FOCUS) (TRACKING)
CPWO1
52
53
CLV MON W
32
32
CLV MON U
CLV MON V
CPUO1
CPVO1
+
MON
+
D
+
C
+
A BC D
8 9 10 11 12 14 5 6
IY IX JX JY A B C D
MODE3 MODE2 MODE1
33 29 28 41 42
163 RFI 169 PEAK 170 BOTM 171 ABCD 172 FE 181 TE 202 ADFG
HD CON2 HD CON1
EFMO
RF OUT PEAK /BOTM PEAK BOTM ABCD FE TE
RI FI
25 VREF
SW RECON OE
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 A-C 13 D-C 7 18 PD-NI 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 33)
SYSTEM CONTROLLER, DIGITAL SIGNAL PROCESSOR, 16M BIT D-RAM IC801 (1/3)
ADDT 195 AOUTL
ADDT AOUTL, AOUTR
(Page 33)
AOUTL 155
(Page 33)
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
3 DATA+ 2 DATA CN701 (1/2) (USB CONNECTOR)
X802 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 CPWI1 20 COM1 17 SPINDLE VOLTAGE MONITOR BIAS
OE
48
74 XRST MTR DRV
54
MZ-N505
6-2.
BLOCK DIAGRAM AUDIO Section
OPTICAL RECEIVER B+ SWITCH Q302
VIF B+ DIN1
(Page 32)
A
J301 LINE IN (OPTICAL)
(LINE IN JACK) A/D CONVERTER IC301
LIN2 (Page 32)
B
ADDT
9
SDTO
AUDIO I/F CONTROL
A/D CONVERTER & HPF
3
GAIN AMP
RIN2
4
SDO0 SCK0
(Page 34)
E
SDO0, SCK0
10 12
16
MCLK
13 14 15
CDTI CCLK CSN
CONTROL REGISTER I/F
BCLK LRCK PDN
CLOCK DIVIDER
11 HEADPHONE AMP IC302
J302 i OUT L OUTB BEEP
(Page 32 )
C
AOUTL, AOUTR
AOUTL
22
IN L
2 24 F801 VC B+ RVDD DTCK KEY-R RGND
AOUTR
21
IN R
OUT R OUTA BEEP
4 23
MUTING
MUTE BEEP
HP/LINE SWITCH
HP/L
VREF IN 13 +
REFERENCE VOLTAGE SWITCHING Q301
15
17
18
RMC KEY
F
(Page 34)
197 196
XBCK LRCK
148
XPD ADC
198
FS256
58 37 36
XOPT CTL XJAC DET OPT DET
49
BEEP
69
MUTE
147 XCS ADC
93 XHP STBY
SDI0 SDO0 SCK0
XCS NV1
45 SI0 46 SO0 47 SCK0
SYSTEM CONTROLLER, DIGITAL SIGNAL PROCESSOR, 16M BIT D-RAM IC801 (2/3)
OSCO OSCI
RMC DTCK 120
71
150
151
SDO0 SCK0
SDI0
X801 45.1584MHz
· SIGNAL PATH : PLAYBACK : REC (ANALOG IN) : REC (DIGITAL IN)
4 3 2 1
DO DI SK XCS
EEPROM IC804
33
33
MZ-N505
6-3. BLOCK DIAGRAM DISPLAY/KEY CONTROL/POWER SUPPLY Section
F
RMC KEY 7 4 56 52 54 55 1 2 3 5 53 VL RF AMP (501) LASER APC CIRCUIT B+ L904 10 VRMC XWK3 CLK CLK SEL FFCLR SLEEP VLON XWK1 XWK2 XWK4 VAIFON VLO VB HEADPHONE AMP (IC302), MOTOR/COIL DRIVER (IC551) B+
(Page 33)
(Page 32)
D
CLK
RMC KEY FS4 CLK SEL FFCLR SLEEP VLON WK DET REC KEY HALF LOCK SW
116 211 64 89 88 85 113 114 115 S805 OPEN
SYSTEM CONTROL POWER CONTROL IC901
SYSTEM CONTROLLER, DIGITAL SIGNAL PROCESSOR, 16M BIT D-RAM IC801 (3/3)
REGURATOR BANDGAP REFERENCE STEP-UP PRE DRIVER & PWM
VL VL
9 11 D902 L902
49
VREF
SWITCHING REGURATOR
DTC2 24 25 DTC1 (Page 33)
L2 12 L2 16
RF2
E
SDO0, SCK0
SD0 SCK RST STB CS XWK1 REC
SDO0 SCK0 102 LCD RST 68 LCD STB 67 XCS LCD
SUSPEND 131 D804
VD SYSTEM CONTROLLER (IC801) B+ VIF A/D CONVERTER (IC301), SYSTEM CONTROLLER (IC801), EEPROM (IC804) B+ VA A/D CONVERTER (IC301), SYSTEM CONTROLLER (IC801) B+ VC RF AMP (IC501), MOTOR/COIL DRIVER (IC551), REMOTE CONTROL CIRCUIT B+ NOISE FILTER D904
VDFB 39 VD 44 VIFFB 38 VIF 42 SERIES PASS REGULATOR
STEP-UP DC/DC CONVERTER
VG
VG MOTOR/COIL DRIVER (IC551) B+
L905 D903
19 LG 18
VC2
45
VAFB 40 VA 41
35
VCO SWITCH
VC REGULATOR VC VOUT SWITCHING REGULATOR
36 34 33 D901
L901
VL PWM 30 RESET SWITCH Q801 PAUSE VIF B+ VB B+ VC PWM 31 82 PAUSE KEY XRST 104 NOISE FILTER
22 23 26 27 46 47
INM2 RF2 INM1 RF1 XRST CRST RESET SIGNAL GENERATOR DTC1
L1 32 L1 28 VB 50
B+ SWITCH Q903, 904 VOLTAGE DETECTOR IC902
STEP-UP PRE DRIVER & PWM
VB VC
VSTB
6
SWITCHING Q901, 902
SE1 KEY 1 SE1 KEY 2
109 SET KEY 1 110 SET KEY 2
VRECO OVER WRITE HEAD DRIVE (IC601) B+ VREC OVER WRITE HEAD DRIVE CIRCUIT B+ VREC PWM 29 WAKE UP SWITCH Q608
L602
VRECO1 10 VRECO2 15 16 19 VREC INM1 + NOISE FILTER 20 RF1 POWER CONTROL IC601 (2/2) CHGMON CHARGE MONITOR SYSTEM CONTROL (2/2) SWITCH
SWITCHING REGULATOR
L1 1 11 L1 2 14
L601 B+ SWITCH Q603
HOLD
77 XHOLD SW
STEP-UP DOWN DW BT 22 PRE DRIVER DW TP & 21 PWM VIO 8 VC2 26 VC 9 VG 36 RF2 49 INM2 48 INP2 47 RS CHG SW 46 45
VIF B+ VC B+ VG B+ CHARGE CONTROL Q602 (2/2)
CHARGE D603
RECHARGEABLE BATTERY NC-WMAA 1PC. 1.2V OR DRY BATTERY SIZE "AA" (IEC DESIGNATION LR6) 1PC. 1.5V
VOLTAGE DETECTER IC604 DVDD VIF B+ CHG MON 107 51
BATTERY CHARGER & REGULATOR
SWITCH & LCD MUDULE
S806 OPEN/CLOSE DETECT
39 OPEN CLOSE SW
CHG GAIN 90 CHG 91 HIDC MON 112 GND SW 66
GAIN 54 CHG 55
CHARGE CONTROL Q602 (1/2) VBUS GND 1 5
CHARGE CONTROL
CN701 (2/2) (USB CONNECTOR)
VB 43 BATM 44 DREG 56 VB B+ L701 DCIN 50 B+ SWITCH Q701 VB B+ VA B+
VIF B+ LINE FILTER T601
S803 PROTECT DETECT
83 PROTECT
VB MON 186
USBIFVDD 132 VBUS DET 111 SWITCHING Q706
DC/DC CONVERTER D703, IC702, Q704 VOLTAGE DETECT Q703
TH601 J601 DC IN 3V
D701 USB ON/OFF SWITCH Q705 GROUND LINE SWITCHING Q601
+
SL801 (TEST)
146 XTEST
34
34
MZ-N505
6-4.
NOTE FOR PRINTED WIRING BOARD AND SCHEMATIC DIAGRAMS
Note on Schematic Diagram: · All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. · All resistors are in and 1/4 W or less unless otherwise specified. · % : indicates tolerance. · C : panel designation. Note: The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. · A : B+ Line. · Total current is measured with MD installed. · Power voltage is dc 3 V and fed with regulated dc power supply from DC IN 3 V jack (J601). · Voltages and waveforms are dc with respect to ground in playback mode. no mark : PLAYBACK ( ) : REC : USB : Impossible to measure · Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production tolerances. · Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances. · Circled numbers refer to waveforms. · Signal path. E : PLAYBACK j : REC (ANALOG IN) l : REC (DIGITAL IN) F : USB CHECK OUT * Replacement of IC801 used in this set requires a special tool. · The voltage and waveform of CSP (chip size package) cannot be measured, because its lead layout is different form that of conventional IC.
Note on Printed Wiring Board: · X : parts extracted from the component side. · Y : parts extracted from the conductor side. · : Pattern from the side which enables seeing. (The other layers' patterns are not indicated.) Caution: Pattern face side: (Conductor Side) Parts face side: (Component Side)
Parts on the pattern face side seen from the pattern face are indicated. Parts on the parts face side seen from the parts face are indicated.
· MAIN board is four-layer printed board. However, the patterns of layers 2 and 3 have not been included in this diagrams. * Replacement of IC801 used in this set requires a special tool. · Lead Layouts
surface
Lead layout of conventional IC
CSP (chip size package)
35
35
MZ-N505
6-5.
· Semiconductor Location
Ref. No. D601 D603 D607 D803 D804 D904 IC551 IC604 IC804 Q302 Q501 Q601 Q603 Q608 Location I-7 I-5 I-3 G-3 H-2 H-5 D-5 H-5 D-4 D-9 F-7 I-6 H-3 I-5
PRINTED WIRING BOARD MAIN Board (Component Side)
:Uses unleaded solder.
1
2
3
4
5
6
7
8
9
10
11
A
S805 OPEN
FB704
B
5 CN701 (1/2) (USB CONNECTOR) 1
FB703 FB702 FB701
J301(1/2)
R830 R707
R705 (CHASSIS)
LINE IN (OPTICAL) 56 1 43 42
C512 L554
R846
D
C830
C828
R847 1
R807
R845
OPTICAL RECEIVER
C829
4
5
C521
L552
R316
ECB
L802
IC804
C823
IC551
C522 14 15 28 29
L553
R302
C330
C111
C211
8
R320
R317
C
MAIN BOARD (COMPONENT SIDE)
R816
R814 C811
C812 FB803
C818
Q302
L551
(CHASSIS)
R808 R809
FB802 C801 FB804
R815 R831
E
C810
C813
1 C803
Q501
C B OPTICAL PICK-UP BLOCK (LCX-5R)
CN501 R519
TP (-) F801
R521 R522
F
+
C204
E
L502
C518
TP (+)
+ C104
S806 (OPEN/CLOSE DETECT) RVDD
J302 (1/2)
C904
C630 L902
+
R105
+
20
L904
L501
DTCK
KEY-R + RGND
G
R802 R803 C825 R844 C834 R840
R853
FB805
C316
R832 R839
R855
C913
L901
L905
A
K
R863
K
A
D803
D904
R914
L906 A
D804
R607
R610
1 C1
2
R628
C608 (CHASSIS)
4
5
C606
R619
R602 C605 R603 R947 C920
C206
H
1
8