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Service Manual
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MZ-B100
SERVICE MANUAL
Ver 1.0 2001.10
Tourist Model
US and foreign patents licensed from Dolby Laboratories Licensing Corporation
Model Name Using Similar Mechanism Mechanism Type Optical Pick-up Name
NEW MT-MZB100-171 LCX-4R
SPECIFICATIONS
System Audio playing system MiniDisc digital audio system Laser diode properties Material: GaAlAs 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 350 rpm to 2,800 rpm (CLV) Error correction ACIRC (Advanced Cross Interleave Reed Solomon Code) Sampling frequency 44.1 kHz Sampling rate converter Input: 32 kHz/44.1 kHz/48 kHz Coding ATRAC (Adaptive TRansform Acoustic Coding) ATRAC3 -- LP2/LP4 Modulation system EFM (Eight to Fourteen Modulation) Speaker 28 mm (1 1/8 in.) dia. Frequency response (digital/analog input) 20 to 20,000 Hz ± 3 dB Wow and Flutter Below measurable limit Inputs Microphone: stereo mini-jack (minimum input level 0.25 mV) Line in 1): stereo mini-jack for analog input (minimum input level 39 mV) optical (digital) mini-jack for optical (digital) input Outputs i : stereo mini-jack (dedicated remote control jack) Maximum output (DC) 2) Headphones: 5 mW + 5 mW (16 ohm) Speaker: 70 mW Continued on next page
PORTABLE MINIDISC RECORDER
9-873-341-01
2001J0200-1 © 2001.10
Sony Corporation
Personal Audio Company Published by Sony Engineering Corporation
MZ-B100
General Power requirements DC 3V LR6 (size AA) alkaline dry battery (world model only) Battery operation time Battery life 1) When recording2)3) Recording mode Stereo LP2 Stereo LP4 Stereo MONO (Unit: approx.hours) (JEITA4)) Approx. hours 9 12.5 15 12
TABLE OF CONTENTS 1. SERVICING NOTES ....................................................... 3 2. GENERAL .......................................................................... 4 3. DISASSEMBLY
3-1. 3-2. 3-3. 3-4. 3-5. 3-6. 3-7. 3-8. 3-9. Panel (Lower) ASSY ..................................................... 6 Main Board ................................................................... 6 Cabinet (Belt) Section ................................................... 7 Key Board Unit ............................................................. 7 Mechanism Deck .......................................................... 8 Optical Pick-up Block (LCX-4R) ................................. 9 Holder ASSY .............................................................. 10 Motor, DC (Sled) (M602) ........................................... 10 "Motor, DC (Spindle) (M601)", "Motor, DC (Over Write Head Up/Down) (M603)" ... 11
1) The battery life may be shorter due to operating conditions
and the temperature of the location.
2) When using a Sony LR6 (SG) "STAMINA" alkaline dry
battery (produced in Japan). Recording time may differ according to the alkaline batteries. 3) When recorded with the built-in microphones. 4) Measured in accordance with the JEITA (Japan Electronics and Information Technology Industries Association) standard.
When playing1) Recording mode Stereo LP2 Stereo LP4 Stereo MONO
(Unit: approx.hours) (JEITA2)) Speaker 3) Headphones 4) 25.5 34.5 27 39.5 30 43 30 43
4. TEST MODE .................................................................... 12 5. ELECTRICAL ADJUSTMENTS ............................... 19 6. DIAGRAMS
6-1. Explanation of IC Terminals ....................................... 24 6-2. Block Diagrams (Main Section (1/3) .......................... 30 6-3. Block Diagrams (Main Section (2/3) .......................... 31 6-4. Block Diagrams (Main Section (3/3) .......................... 32 6-5. Printed Wiring Board (Main Section (1/2)) ................ 33 6-6. Printed Wiring Board (Main Section (2/2)) ................ 34 6-7. Schematic Diagram (Main Section (1/4)) ................... 35 6-8. Schematic Diagram (Main Section (2/4)) ................... 36 6-9. Schematic Diagram (Main Section (3/4)) ................... 37 6-10. Schematic Diagram (Main Section (4/4)) ................... 38
1) When using a Sony LR6 (SG) "STAMINA" alkaline dry
battery (produced in Japan). 2) Measured in accordance with the JEITA (Japan Electronics and Information Technology Industries Association) standard. 3) When played using the built-in speaker. 3) When played using headphones.
Dimensions Approx. 105.7 × 80.0 × 24.9 mm (w/h/d) (4 1/4 × 3 1/8 × 1 in.) not incl. projecting parts and controls. Mass Approx. 160 g (5.7 oz) (main unit only) Supplied accessories Remote control (1) Headphones (1) Carrying pouch (1) Hand strap (1) Sony LR6 (size AA) alkaline dry battery (1)
1) The LINE IN (OPTICAL) jack is used to connect either a digital
7. EXPLODED VIEW
7-1. 7-2. 7-3. 7-4. Panel (Lower) Section ................................................. 42 Panel (Upper Lid) Section .......................................... 43 Cabinet (Belt) Section ................................................. 44 Mechanism Deck Section (MT-MZB100-171) ........... 45
(optical) cable or a line (analog) cable.
2) Measured in accordance with JEITA.
8. ELECTRICAL PARTS LIST ....................................... 46
Design and specifications are subject to change without notice.
Flexible Circuit Board Repairing · Keep the temperature of the soldering iron around 270°C during repairing. · Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). · Be careful not to apply force on the conductor when soldering or unsoldering. Notes on chip component replacement · Never reuse a disconnected chip component. · Notice that the minus side of a tantalum capacitor may be damaged by heat. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.
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
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.
MZ-B100
· When repairing this device with the power on, if you remove the MAIN board or open the upper panel assy, this device stops working. In this case, you can work without the device stopping by fastening the hook of the open/close detect switch (S804).
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-4R) 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.
S804
· This set is designed to perform automatic adjustment for each adjustment and write its value to EEPROM. Therefore, when EEPROM (IC802) has been replaced in service, be sure to perform automatic adjustment and write resultant values to the new EEPROM. (Refer to Section 5 Electrical Adjustment. (page 19)) · Replacement of CXD 2671-209GA (IC801) used in this set requires a special tool.
z
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.)
laser-tap
: LEAD FREE MARK
OPTICAL PICK-UP FLEXIBLE BOARD
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.
3
MZ-B100
SECTION 2 GENERAL
This section is extracted from instruction manual.
LOCATION AND FUNCTION OF CONTROLS
Front of the recorder
How to attach the hand strap.
12 3456 78 qj qk ql
9q;qaqsqdqfqg
qh
w;
wa
ws
wd wf wgwh
1 SPEED CONTROL dial 2 .REVIEW/AMS/>CUE/AMS (search /AMS) buttons 3 VOR indicator 4 DISPLAY button 5 PLAY MODE button 6 EDIT/ENTER button 7 EASY SEARCH +/ buttons 8 Display window 9 x STOP button 0 N PLAY (play) button The N PLAY button has a tactile dot. qa X PAUSE button qs z REC button qd REC indicator
qf TRACK MARK button qg REC MODE switch qh GROUP button qj Speaker qk DC IN 3V jack ql Microphones w; i (headphones) jack wa OPEN switch ws HOLD switch wd VOL control The VOL control has a tactile dot. wf VOR button wg SYNCHRO REC ON/OFF switch wh ERASE button
Back of the recorder
1
4 2 5 3 6
1 Battery compartment 2 CLOCK SET button 3 SOUND button 4 LINE IN (OPTICAL) jack
5 MIC (PLUG IN POWER) jack The MIC (PLUG IN POWER) jack has a tactile dot. 6 MIC SENS (H/L) switch
4
MZ-B100
The display window
1
2 34
5
6
7
8
9 q;
qa
qs
qd
1 Character information display Displays the disc and track names, date, error messages, track numbers, recording level, etc. 2 Group indication 3 Play mode indication 4 Disc indication Shows that the disc is rotating for recording, playing or editing an MD. 5 VOR indication
6 Battery level indication 7 SYNC (synchro-recording) indication 8 Playback level meter 9 V-UP indication 0 STEREO (stereo), LP2 (LP2 stereo), LP4 (LP4 stereo), MONO (monaural) indication qa Pause indication qs SOUND indication qd REC indication
The remote control
F
A B C D
G E H I J
1 Stereo mini plug 2 SOUND button 3 TRACK MARK button 4 HOLD switch Slide to lock the controls of the remote control. 5 X (pause) button
6 Headphones 7 x (stop) button 8 >N buttons The >N buttons has a tactile dot. 9 .REVIEW/AMS 0 VOL control The VOL control has a tactile dot.
5
MZ-B100
SECTION 3 DISASSEMBLY
Main board Cabinet (belt) section Key board unit Mechanism deck
z The
equipment can be removed using the following procedure.
Panel (lower) ASSY
Set
Optical pick-up block
Holder ASSY
Motor, DC (sled) (M602)
Motor, DC (spindle) (M601) , Motor, DC (over write head up/down) (M603)
Note : Follow the disassembly procedure in the numerical order given.
3-1. PANEL (LOWER) ASSY
Panel (upper lid) ASSY S301
S809
3 2 Screws (ES lock)
Caution during assembly Position the SYNCHRO REC knob and the S809, position the MIC SENS knob and the S301 respectively.
z
Panel (lower) ASSY
1 Screws (B1.7x4)
MIC SENS knob
SYNCHRO REC knob
2 Screws (ES lock)
3-2. MAIN BOARD
Panel (upper lid) ASSY
Hold knob
5
6 CN501 2 CN801
4 CN701
3 Remove solder (4 places)
Main board
1 Screws 1 Screws
z
Caution during assembly Position the hold knob and the S801 respectively
6
MZ-B100
3-3. CABINET (BELT) SECTION
1 Screws (ES lock)
Panel (upper lid) ASSY
3
1 Screws (ES lock)
Cabinet (belt) section
2 Open
3-4. KEY BOARD UNIT
Panel (upper lid) ASSY
9 Claws
MIC101
0
MIC201
Key board unit
7 Remove solder (2 places) 6 Remove solder (4 places)
2 Cover (REC)
5 Screws 5 Screw 4 Speaker 1 Screws 3 Screws (B2.0) 8 Remove solder (2 places)
7
MZ-B100
3-5. MECHANISM DECK
Mechanism deck (MT-MZB100-171)
9
Set chassis ASSY Cabinet (front)
8 Screws (ES lock)
2
6 7 Screws (ES lock)
Cabinet (belt)
1 Screws (ES lock)
5 Screw (ES lock) 4 Screws (ES lock)
3 Screws (ES lock)
8
MZ-B100
3-6. OPTICAL PICK-UP BLOCK (LCX-4R)
2 gear (SA) 1 washer (0.8-2.5)
5 screw (M1.4)
6 spring, thrust detent 3 screw (M1.4) 8 Pull off "screw, lead" 4 spring, rack
7
9 Opening the over write head toward the direction A, remove the optical pick-up block (LCX-4R) toward the direction B. B
Note: Do not open the entire assy forcibly, when opening the over write head.
Optical pick-up block (LCX-4R)
A
over write head section
9
MZ-B100
3-7. HOLDER ASSY
5 Remove the holder assy in the direction of arrow D.
B 1 Open the holder assy. 2 Push the convex portion toward the direction B and open the holder assy toward the direction A to erect uprightly. C 3 Remove the concave portion in the direction of arrow C.
A
D
4 boss
3-8. MOTOR, DC (SLED) (M602)
2 washer (0.8-2.5) 3 gear (SA)
4 two screws (M1.4)
1 Remove six solders of motor flexible board.
5 motor, DC (sled) (M602)
10
MZ-B100
3-9. "MOTOR, DC (SPINDLE) (M601)", "MOTOR, DC (OVER WRITE HEAD UP/DOWN) (M603)"
1 Remove six solders of motor flexible board. qa motor, DC (over write head up/down) (M603)
Note: Press-fit the gear (HA) up to the position of the "motor, DC (over write head up/down) (M603) as shown below. gear (HA) 2.65 mm chassis assy, gear
6 two screws (M1.4)
qs chassis assy, gear 4 three screws (M1.4) 9 screw (M1.2)
motor, DC (over write head up/down) (M603)
5 motor, DC (spindle) (M601) 0 gear (HA) 8 gear (HB) 7 washer (0.8-2.5) 2 washer (0.8-2.5)
3 gear (HC)
11
MZ-B100
SECTION 4 TEST MODE
2 In the normal mode, turn on the HOLD switch on the set. While pressing the N key on the set, press the following set keys in the following order:
> t > t . t . t > t . t > t . t X t X
[Outline]
· This set provides the Overall adjustment mode (Assy mode) that allows CD and MO disc to be automatically adjusted when in the test mode. In this overall adjustment mode, the protect switch is detected to judge the disc, CD or 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. · The keys in the description refer to the keys on both set and remote commander unless otherwise specified.
[Operation in Setting the Test Mode]
· When the test mode becomes active, first the display check mode is selected. (Press x key once, when the display check mode is not active.) · Other mode can be selected from the display check mode. · When the test mode is set, the LCD repeats the following display. LCD display
[Setting Method of Test Mode]
There are two different methods to set the test mode: 1 Short SL801 (TEST) on the MAIN board with a solder bridge (connect pin 202 of IC801 to the ground). Then, turn on the power.
MAIN BOARD (SIDE A)
R812 C806 C808
1 4
8
All lit
IC804
5
C805
R804
C517
R817
40
C518
44
All off
SL801(TEST) OPEN: NORMAL MODE SHORT: TEST MODE
R801 R803
Microprocessor version display
V0.000
R802
* IC801
· When the X key is pressed and hold down, the display at that time is held so that display can be checked.
R828 C823
R819 C817 R820 R830 C816
[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.
R821 X801 C818
C821
R811 R810
R825 R827 R829
Note: Remove the solders completely. Remaining could be shorted with the chassis, etc.
SL801 SHORT: TEST MODE OPEN: NORMAL MODE
For test mode set with the method 2: Turn off the power.
Note: If electrical adjustment (see page 19) has not been finished completely, always start in the test mode. (The set cannot start in normal mode.)
12
MZ-B100
[Configuration of Test Mode]
[EASY SEARCH +] key: 100th place of [Major item switching]
mode number increase. [EASY SEARCH --] key: 100th place of mode number decrease.
[Test Mode $Display Check Mode%] Press the > or [EASY SEARCH +] key [Manual Mode]
Press the x key
Press the .
[Servo Mode] [Audio Mode] [Power Mode] [OP Alignment Mode] or [EASY SEARCH --] key [Overall Adjustment Mode]
N key
x key
[EASY SEARCH +] key: 10th place of [Medium item switching]
mode number increase. [EASY SEARCH --] key: 10th place of mode number decrease.
Press the x key Press the N or [REC] key on the set Press the x key
N key
x key
[Minor item switching]
N key: Unit place of mode number
[Sound Skip Check Result Display Mode]
Press the [DISPLAY] key
increase.
[Adjusted value variation] [EASY SEARCH +] key: Increases the
adjusted value
[Self-Diagnosis Display Mode]
Press the x key Press the [TRACK MARK] key on the remote commander for several seconds.
[EASY SEARCH --] key: Decreases the
adjusted value
[Key Check Mode]
Quit the key check 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. · Transition method in Manual Mode 1. Setting the test mode. (See page 12) 2. Press the > or [EASY SEARCH +] key activates the manual mode where the LCD display as shown below.
LCD display
changed: Adjusted value is written. When adjusted value is not changed: That item is adjusted automatically.
Manual
3. 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 mode number; 100th place is a major item, 10th place is a medium item, and unit place is a minor item.
13
MZ-B100
5. Set the mode No. to 011. The display changes a shown below each time the [DISPLAY] key is pressed.
[Overall Adjustment Mode]
Mode to adjust the servo automatically in all items. Normally, automatic adjustment is executed in this mode at the repair. Adjust the CD first, when performing adjustment. · Configuration of overall adjustment
> key Title display . key
· Address & Adjusted Value Display
LCD display
C68S01
011
address adjusted value mode number
N key protect switch ON
CD overall adjusting
· Jitter Value & Adjusted Value Display
LCD display
All item OK
NG item exists or x key
CD overall adjustment NG
0FFJ01
jitter value
011
x key
adjusted value mode number
· Block Error Value & Adjusted Value Display
LCD display
x key
CD overall adjustment OK > key
063B01
011
block error value adjusted value mode number
protect switch OFF
MO overall adjusting
· ADIP Error Value & Adjusted Value Display
LCD display
NG item exists or x key
MO overall adjustment NG MO overall adjustment OK
059A01
011
ADIP error value adjusted value mode number
x key x key
· Item Title Display
LCD display
[Test mode $display check mode%]
LrefPw 01
item title
011
For further information, refer to the Section 5 Electrical Adjustment. (See page 19)
adjusted value mode number
However in the power mode (mode number 700's), only the power adjustment value is displayed. · Power Supply Adjusted Value
LCD display
AD
85
731
fixed display mode number adjusted value
6. Quit the manual mode, and press x key to return to the test mode (display check mode).
14
MZ-B100
[Sound Skip Check Result Display Mode]
This set can display and check the error count occurring during record and play. · Setting method of Sound Skip Check Result Display Mode 1. Setting the test mode. (See page 12) 2. Press the N or [REC] key on the set activates the sound skip check result display mode where the LCD displays as shown below.
LCD dispaly
4. When [REC] key on the set is pressed, the total of error count is displayed on the LCD, and each time the > key is pressed, the error count descents one by one as shown below. Also, when . key is pressed, the error count ascends by one. If N key is pressed, the error count during play is displayed.
P**R** Bovr**
000
000
P**R**
000
Total of record system error count Total of play system error count
BFul** Rtry** ######
000
000
000
3. When N key is pressed, the total of error count is displayed on the LCD, and each time the > key is pressed, the error count descents one by one as shown below. Also, when . key is pressed, the error count ascends by one. If [REC] key on the set is pressed, the error count during record is displayed.
** : Sound skip check items counter (hexadecimal) ###### : 6-digit address (hexadecimal) where a sound skipped last
Error code
Cause of error Description of error Sound error correction error Decorder status error Cannot access the address Buffer becomes empty Buffer becomes full and sounds are dumped Buffer capacity lowers and data are forcibly written Retry count over EIB Playback Stat Adrs BEmp BOvr Recording BFul Rtry
P**R** EIB ** Stat** Adrs** BEmp** ######
000
000
000
000
000
000
5. Quit the sound skip check result display mode, and press the x key to return to the test mode (display check mode).
** : Sound skip check items counter (hexadecimal) ###### : 6-digit address (hexadecimal) where a sound skipped last
15
MZ-B100
[Self-Diagnosis Display Mode]
· This set uses the self-diagnosis system in which if an error occurs in recording/playback mode, the error is detected by the model control and power control blocks of the microprocessor and information on the cause is stored as history in EEPROM. By viewing this history in test mode, it helps you to analyze a fault and determine its location. Total recording time has been recorded as optical pick-up using time, and it is compared with the total recording time in the self-diagnosis display mode to find when an error occurred. Clear both total recording time and the time in self-diagnosis display mode, when the optical pick-up was replaced. 1. Setting the test mode. (See page 12) 2. Press the [DISPLAY] key activates the self-diagnosis display mode where the LCD display as shown below.
LCD dispaly
1st0**
000
history code * * : Self-Diagnosis Data
3. Then, each time > key is pressed, LCD display descends by one as shown below. Also, the LCD display ascends by one when . key is pressed.
000
1st0** 1st1** 1st2** N N N 0** 1** 2**
000
1
000
N-11** N-12** N-20** N-21** N-22** R ####
000
000
000
000
000
000
000
000
000
N-10**
1
000
4. Quit the self-diagnosis display mode, and press the x key to return to the test mode (display check mode).
16
MZ-B100
· Description of Indication History History code number 1st0 1st1 1st2 N0 N1 N2 N-10 N-11 N-12 N-20 N-21 N-22 REC The first error Total recording time when 1st0 was generated (Higher rank byte) Total recording time when 1st0 was generated (Lower rank byte) The last error Total recording time when N 0 was generated (Higher rank byte) Total recording time when N 0 was generated (Lower rank byte) One error before the last. Total recording time when N-10 was generated (Higher rank byte) Total recording time when N-10 was generated (Lower rank byte) Two errors before the last. Total recording time when N-20 was generated (Higher rank byte) Total recording time when N-20 was generated (Lower rank byte) Total recording time * * Total recording time Total recording time is recorded in minutes. It is recorded in hexadecimal format and up to 65,535 min. can be counted. It returns to "0000min" when recorder goes beyond this limit. Description
· Description of Error Indication Codes Problem No error Indication code 00 01 Servo error 02 03 04 21 Power error 22 23 24 Meaning of code No error Illegal access target address was specified High temperture Focus error Spindle error Initial low battery Low battery Low battery NI Low battery AM Attempt to access an abnormal address High temperture Forcus could not be applied Abnormal lotation of disc Abnormal voltage at initialization Momentary interruption detected Momentary interruption detected (NiMH) Momentary interruption detected (AM) Description
[Clearing Self-Diagnosis Data and Total Recording Time]
1. Setting the test mode. (See page 12.) 2. Move up the jog key on the set or press the [DISPLAY] key on the remote commander activates the self-diagnosis display mode. 3. Press the X key or [REC] key on the set during display of self-diagnosis data when clearing the self-diagnosis data, or during display of total recording time when clearing the total recording time. Thus, "ClrOK?" will be displayed on the LCD, and press the same key again, and when self-diagnosis data is cleared "ErrCLR" is displayed and the data is cleared. Also when total recording time is cleared, " ReeT O" is displayed and it is cleared.
17
MZ-B100
[Key Check Mode]
This set can check if the set and remote commander function normally. · Setting Method of Key Check Mode 1. Setting the test mode. (See page 12) 2. Press the [T MARK] activates the key check mode where all segments of LCD turn OFF. (At the last two digits of DOT section, AD value of remote commander key line is displayed in hexadecimal) 3. When each key is pressed, it is displayed on the LCD, implying that it was successfully checked as shown below. However, for the slide switch on the set, it is not checked unless it is reciprocated. * The key pressed to enter the key check mode was already checked at that time. Set key
Key N > . X EASY SEARCH + EASY SEARCH x REC TRACK MARK HOLD (hold) HOLD (off) SYNCHRO REC (on) SYNCHRO REC (off) PLAY MODE DISPLAY EDIT/ENTER VOR ERASE REC MODE GROUP Indication PLAY FF FR PAUSE EASY + EASY STOP REC T MARK HLDon HLDoff SYCon SYCoff P MODE DISP MENU VOR ERASE R-MODE GROUP
Remote commander key
Key N/> . X x TRACK MARK V-UP Indication rPLAY rFR rPAUSE rSTOP rREP rSOUND
4. The test mode (display check mode) is automatically activated when all keys on the set and remote commander were checked (see above). Also, the test mode (display check mode) gets back if opening the upper panel during a key check.
18
SECTION 5 ELECTRICAL ADJUSTMENTS
[Outline]
· In this set, automatic adjustment of CD and MO can be performed by entering the test mode. (See page 12) However, before starting automatic adjustment, the memory clear, power adjustment and temperature adjustment must be performed in the manual mode. · The keys in the description refer to the keys on both set and remote commander unless otherwise specified. Though LCD display shows the LCD of the remote commander, same contents are also displayed on the LCD of the set.
MZ-B100
[NV Reset]
· Setting method of NV reset 1. Select the manual mode of test mode, and set mode number 021NV Reset.
LCD display
ResNV
021
2. Press the X key.
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) Available SONY CD disc · Recorded MO disc PTDM-1 (Part No. : J-2501-054-A) Available SONY MO disc (recorded) · Laser power meter LPM-8001 (Part No. : J-2501-046-A) · Digital voltmeter 3. Unless specified otherwise, supply DC 3V from the DC IN 3V jack. 4. Switch position HOLD switch ................ OFF
ResOK?
021
3. Press the X key once more.
LCD display
Res***
021
r NV reset (after several seconds)
Reset!
021
4. Quit the manual mode, and activate the test mode. [Power Supply Manual Adjustment] · Adjustment sequence Adjustment must be done with the following steps. 1. VC PWM Duty (L) adjustment (mode number: 762) r 2. VREM PWM Duty (H) adjustment (mode number: 763) r 3. VREM PWM Duty (L) adjsutment (mode number: 764) r 4. VC PWM Duty (H) adjustment (mode number: 765) r 5. VREM PWM Duty (H) adjustment (mode number: 766) r 6. VREM PWM Duty (L) adjustment (mode number: 767)
[Adjustment Sequence]
Adjustment must be done with the following steps. 1. NV Reset (Memory clear) r 2. Power Supply Manual Adjustment Manual Mode r 3. Temperature correction r 4. CD Overall Adjustment r 5. MO Overall Adjustment Overall Mode
19
MZ-B100
· Adjustment method of VC PWM Duty (L) (mode number: 762) 1. Select the manual mode of the test mode, and set the mode number 762. (See page 13)
LCD display
digital voltmeter
AP913 (VC) AP909 (GND)
MAIN BOARD (SIDE A)
C9
C926 C925 C924 15 14 AP912 (VL)
VclPWM
762
2. Connect a digital voltmeter to the AP913 (VC) on the MAIN board, and adjust [EASY SEARCH +] key (voltage up) or [EASY SEARCH --] key (voltage down) so that the voltage becomes 2.5 ± 0.02 V. Proceed to the next step without pressing X key if voltage is already adjusted.
digital voltmeter
D903
C915 C912
AP909 (GND)
10 5
C913
R920 R919
AP913 (VC) C502
AP913 (VC)
1
AP909 (GND)
MAIN BOARD (SIDE A)
C9
56
R501
3. Press the X key to write the adjusted value. · Adjustment method of VREM PWM Duty (L) (mode number: 764) 1. Select the manual mode of the test mode, and set the mode number 764. (See page 13)
C915 C912
C926 C925 C924 15 14 10 5 1 56
C913
AP912 (VL)
D903
AP909 (GND)
LCD display
VrlVcl
AP913 (VC) C502
R920 R919
764
2. Connect a digital voltmeter to the AP912 (VL) on the MAIN board, and adjust [EASY SEARCH +] key (voltage up) or [EASY SEARCH --] key (voltage down) so that the voltage becomes 2.5 ± 0.02 V. Proceed to the next step without pressing X key if voltage is already adjusted.
digital voltmeter AP912 (VL)
MAIN BOARD (SIDE A)
R92 C9
R501
3. Press the X key to write the adjusted value. · Adjustment method of VREM PWM Duty (H) (mode number: 763) 1. Select the manual mode of the test mode, and set the mode number 763. (See page 13)
LCD display
VrhVcl
763
AP909 (GND)
AP912 (VL)
19
C922
C926 C925 C924 15
2. Connect a digital voltmeter to the AP913 (VC) on the MAIN board, and adjust [EASY SEARCH +] key (voltage up) or [EASY SEARCH --] key (voltage down) so that the voltage becomes 2.75 ± 0.02 V. Proceed to the next step without pressing X key if voltage is already adjusted.
D903
C915 C912
25
20
14 10 5
C913
AP909 (GND)
IC901
R920 R919
45
50 C902 56
1
R5
3. Press the X key to write the adjusted value.
20
MZ-B100
· Adjustment method of VC PWM Duty (H) (mode number: 765) 1. Select the manual mode of the test mode, and set the mode number 765. (See page 13)
LCD display
digital voltmeter AP912 (VL)
MAIN BOARD (SIDE A)
R92 C9
19 C926 C925 C924 15 25 20 14 10 5
VchPWM
765
2. Connect a digital voltmeter to the AP913 (VC) on the MAIN board, and adjust [EASY SEARCH +] key (voltage up) or [EASY SEARCH --] key (voltage down) so that the voltage becomes 2.75 ± 0.02 V. Proceed to the next step without pressing X key if voltage is already adjusted.
digital voltmeter
AP909 (GND)
AP912 (VL)
C922
D903
C915 C912
AP909 (GND)
AP913 (VC) AP909 (GND)
MAIN BOARD (SIDE A)
C9
45
50
C902
1 56
C913
IC901
R920 R919
R5
3. Press the X key to write the adjusted value. · Adjustment method of VREM PWM Duty (L) (mode number: 767) 1. Select the manual mode of the test mode, and set the mode number 767. (See page 13)
LCD display
C926 C925 C924 15 14 10
C913
AP912 (VL)
D903
C915 C912
AP909 (GND)
VrlVch
767
AP913 (VC) C502
5 1 56
R920 R919
R501
3. Press the X key to write the adjusted value. · Adjustment method of VREM PWM Duty (H) (mode number: 766) 1. Select the manual mode of the test mode, and set the mode number 766. (See page 13)
LCD display
2. Connect a digital voltmeter to the AP912 (VL) on the MAIN board, and adjust [EASY SEARCH +] key (voltage up) or [EASY SEARCH --] key (voltage down) so that the voltage becomes 2.5 ± 0.02 V. Proceed to the next step without pressing X key if voltage is already adjusted. 3. Press the X key to write the adjusted value.
digital voltmeter AP912 (VL)
MAIN BOARD (SIDE A)
C9
VrhVch
766
AP909 (GND)
AP912 (VL)
R92
19
C926 C925 C924 15
2. Connect a digital voltmeter to the AP912 (VL) on the MAIN board, and adjust [EASY SEARCH +] key (voltage up) or [EASY SEARCH --] key (voltage down) so that the voltage becomes 2.75 ± 0.02 V. Proceed to the next step without pressing X key if voltage is already adjusted.
C922
D903
C915 C912
AP909 (GND)
25
20
14 10 5
45
50
C902
1 56
C913
IC901
R920 R919
R5
21
MZ-B100
[Temperature Correction]
· Adjustment Method of temperature correction 1. Select the manual mode of test mode, and set the mode number 014. (See page 13)
LCD display
· CD Automatic Adjustment item
Mode No. 312 313 314 328 CD TWPP gain adjustment CD tracking error gain adjustment CD tracking error offset adjustment CD ABCD level adjustment CD focus gain adjustment CD tracking gain adjustment CD two-axis sensibility adjustment CD focus bias adjustment CD electrical offset adjustment Description
SetTmp
014 2. Measure the ambient temperature. 3. Adjust with [EASY SEARCH +], [EASY SEARCH --] key so that the adjusted value (hexadecimal value) becomes the ambient temperature. (Initial value: 14h = 20 °C, Adjusting range: 80h to 7fh (128 °C to +127 °C) 4. Press the X key to write the adjusted value.
321 323 332 336 344 345 521 522 341
[Overall Adjustment Mode]
· Adjustment Method of Overall Adjustment Mode 1. Setting the test mode. (See page 12) 2. Press the . or [EASY SEARCH --] key activates the overall adjustment mode where the LCD display as shown below.
LCD display
5. If the result of automatic adjustment is OK, the following display appears in the LCD:
LCD display
CD OK
ASSY**
000
: (DISC MARK) When power adjustment "H" finished; Outward ON When power adjustment "L" finished; Inward ON Power supply is not yet adjusted unless both outward and inward disc marks are ON. Note: Disc mark is displayed on the remote commander LCD only. : Left side = MO auto adjustment information F* : Auto adjustment finished 1* : Manual adjustment remains 0 * : Not adjusted yet Right side = CD auto adjustment information * F: CD auto adjustment finished * 1: Manual adjustment remains (not auto adjustment) * 0: Not adjusted yet
341
6. If the result of automatic adjustment is NG, the following display appears in the LCD:
LCD display
### NG
# # # : Overall adjustment. NG mode number
**
3. Insert the CD test disc TDYS-1 (Parts No.4-963-646-01) or an available SONY CD disc. 4. Press N key. The system discriminates between CD and MO and performs automatic adjustment for CD. Also, if . key is pressed, CD is adjusted automatically.
LCD display
7. If NG, set the manual mode. Perform automatic adjustment for the items not accepted. (See page 13) 8. If CD adjustment is OK, insert an available SONY MO disc (recorded). At this time, be sure to turn OFF the disc protect switch. 9. Press N key. The system discriminates between CD and MO and performs automatic adjustment for the MO disc. Also, if > key is pressed, MO is adjusted automatically. However, when CD adjustment is not finished, "SetCD!" is blinking on the LCD and MO adjustment is not executed.
LCD display
MO RUN
%%%
%%% : Manual mode number being executed
CD RUN
%%%
%%% : Manual mode number being executed
22
MZ-B100
· MO Automatic Adjustment item
Mode No. 112 113 114 118 221 223 232 236 244 245 121 122 134 131 132 136 144 145 434 431 432 436 445 411 412 448 141 32 cluster full recording MO focus bias adjustment MO write ABCD level adjustment MO write tracking gain adjustment MO normal speed read TWPP offset adjustment MO ABCD level adjustment MO focus gain adjustment MO tracking gain adjustment MO write TWPP gain adjustment MO write TWPP offset adjustment Lower reflection CD ABCD level adjustment Lower reflection CD focus gain adjustment Lower reflection CD tracking gain adjustment MO tracking error gain adjustment MO tracking error offset adjustment MO TWPP gain adjustment MO double speed read TWPP offset adjustment Lower reflection CD tracking error gain adjustment Lower reflection CD tracking error offset adjustment MO electrical offset adjustment Description
[Laser Power Check]
Connection :
laser power meter
Optical pick-up objective lens
digital voltmeter
R501 R501
MAIN BOARD (SIDE A)
C709
AP913 (VC) C502 56 1
C712
45 50
43
C711
R501 L502
L501
C504
42 40 35
5
R506
IC701
10 14 15
C716
10. If the result of automatic adjustment is OK, the following display appears in the LCD:
LCD display
MO OK
141 11. If the result of automatic adjustment is NG, the following display appears in the LCD:
LCD display
### NG
# # # : Overall adjustment. NG mode number
12. If NG, set the manual mode. Perform automatic adjustment for the items not accepted. (See page 13) 13. To clear the data in overall adjustment mode, set the manual mode and change the mode number 021 (Res NV) to reset the NV. (See page 13) 14. When both CD and MO overall adjustments are OK, set the mode No. 043 (Resume) and clear the clock data.
LCD display
Check Method : 1. Select the manual mode of test mode, and set the laser power adjusting mode. (mode number 010) 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. (mode number 011) 5. Check that the laser power meter reading is 0.81 ± 0.08 mW. 6. Check that the voltage both ends of resitor R501 at this time is below 44 mV. 7. Press the N key, and set the laser CD read adjustment mode. (mode number 012) 8. Check that the laser power meter reading is 0.97 ± 0.10 mW. 9. Check that the voltage both ends of resitor R501 at this time is below 44 mV. 10. Press the N key, and set the laser MO write adjustment mode. (mode number 013) 11. Check that the laser power meter reading is 4.95 ± 0.50 mW. 12. Check that the voltage both ends of resister R501 at this time is below 80 mV. 13. Press the x key. 14. Release the test mode.
Resume
043 r Press the X key, historical data clear
ResClr
043
Note: In step 10, set the clock data to 99Y11M11D11H11M00S, and in step 14, do not set the clock.
505 R502 R504 R503
C501
509 508 507 513 512
20
25
28
C715
E B C Q501
29
23
MZ-B100
SECTION 6 DIAGRAMS
6-1. EXPLANATION OF IC TERMINALS
· MAIN BOARD IC501 SN761057DBT (RF AMP, FOCUS/TRACKING ERROR AMP) Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 Pin name TE REXT WPPLPF VREF11 C D D-C IY IX JX JY A A-C B TON-C CIG CDN PD-NI PD-I PD-O ADFG DVDD SBUS SCK XRST OFTRK DGND BOTM PEAK VREF075 VC CCSL2 RF OUT AGND EQ LP PS OFC-2 OFC-1 AVCC ABCD FE S-MON ADIP-IN
I/O O -- -- O I I I I I I I I I I -- -- -- I I O O -- I/O I I I -- O O -- O -- O -- -- -- -- -- -- -- O O O I Tracking error signal output to IC801
Description Connected to the external resistor for the ADIP amplifier control Connected to the external capacitor for low-pass filter of the TPP/WPP Reference voltage output terminal (+1.1V) Signal input from the optical pick-up detector (C) Signal input from the optical pick-up detector (D) Signal input from the optical pick-up detector (D) (AC input) I-V converted RF signal IY input from the optical pick-up block detector I-V converted RF signal IX input from the optical pick-up block detector I-V converted RF signal JX input from the optical pick-up block detector I-V converted RF signal JY input from the optical pick-up block detector Signal input from the optical pick-up detector (A) Signal input from the optical pick-up detector (A) (AC input) Signal input from the optical pick-up detector (B) Connected to the external capacitor for the TON hold Connected to the external capacitor for low-pass filter of the NPP divider denominator Connected to the external capacitor for low-pass filter of the CSL divider denominator Light amount monitor input terminal (non-invert input) Light amount monitor input terminal (invert input) Light amount monitor output terminal ADIP duplex FM signal (22.05 kHz ± 1 kHz) output to IC801 Power supply terminal (+2.4V) (digital system) Two-way SSB serial data bus with the system controller (IC801) SSB serial clock signal input from the system controller (IC801) Reset signal input from the system controller (IC801) "L": reset Off track signal input from IC801 Ground terminal (digital system) Light amount signal (RF/ABCD) bottom hold output to IC801 Light amount signal (RF/ABCD) peak hold output to IC801 Connected to the external capacitor for the internal reference voltage Middle point voltage (+1.2V) generation output terminal Connected to the external capacitor for low-pass filter of the TPP/WPP Playback EFM RF signal output to IC801 Ground terminal (analog system) Connected to the external capacitor for the RF equalizer Connected to the external capacitor for the RF equalizer Connected to the external capacitor for the RF equalizer Connected to the external capacitor for the RF AC coupling Connected to the external capacitor for the RF AC coupling Power supply terminal (+2.4V) (analog system) Light amount signal (ABCD) output to IC801 Focus error signal output to IC801 Servo signal monitor output to the system controller (IC801) ADIP duplex FM signal (22.05 kHz ± 1 kHz) input terminal Not used
24
MZ-B100
· IC801 CXD2671-209GA (SYSTEM CONTROLLER, DIGITAL SIGNAL PROCESSOR, 16M BIT D-RAM) Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 to 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 Pin name MICAMP CTL XHP DET V UP SP AMP XMONO MODE MCUVDD0 MIFVSS3 XRST S MON VB MON CHG MON VREF MON SET KEY 1 3 HIDC MON WK DET REC KEY HALF LOCK SW RMC KEY AVDD AVSS VDIOSC OSCI OSCO VSIOSC DAVDD VREFL AOUTL AOUTR VREFR DAVSS ASYO ASYI AVD1 BIAS RFI AVS1 PCO PDO FILI FILO CLTV PEAK BOTM ABCD FE AUX1 VC ADIO ADRT I/O O I O O O -- -- I I I I I I I I I I I -- -- -- I O -- -- I O O I -- O I -- I I -- O O I O I I I I I I I O I MIC AMP ON/OFF control output Headphones connection detect input Volume control output Speaker amplifier ON/OFF control output MONO/STEREO control output Power supply terminal (for microcomputer block) (+1.5V) Ground terminal (for microcomputer I/F) System reset signal input terminal from the power control (IC901) Voltage monitor input terminal of UNREG power supply (A/D input) Charge voltage monitor input terminal (A/D input) from IC601 Clear reference monitor voltage input terminal (A/D input) from RF amp (IC501) Key input terminal from the switch & LCD module (A/D input) HIGH DC voltage monitor input terminal (A/D input) Set key start switching detection signal input terminal (A/D input) REC key input terminal (A/D input) Open button detection switch (S805) input terminal (A/D input) open button is pressed. Input "H" in other cases. Key input terminal (A/D input) from the remote commander attached headphone Power supply terminal (for the analog circuit block) (+2.8V) Ground terminal (for the analog circuit block) Power supply terminal (for OSC cell) (+2.4V) System clock (45.1584MHz) input terminal System clock (45.1584MHz) output terminal Ground terminal (for OSC cell) Power supply terminal (for the built-in D/A converter) (+2.4V) Reference voltage input terminal (for the internal D/A converter L-CH) Built-in D/A converter (L-CH) output terminal Built-in D/A converter (R-CH) output terminal Reference voltage input terminal (for the built-in D/A converter R-CH) Ground terminal (for the built-in D/A converter) Playback EFM duplex signal output terminal Playback EFM comparison slice level input terminal Ground terminal (for the analog) (+2.4V) Bias current input terminal for the playback EFM comparison Playback EFM RF signal input from RF amp (IC501) Ground terminal (for the analog) Phase comparison output terminal for the playback EFM system master PLL Phase comparison output terminal for the analog PLL Not used (open) Filter input terminal for the playback EFM system master PLL Filter output terminal for the playback EFM system master PLL Internal VCO control voltage input for the playback EFM system master PLL Peak hold signal input of the light amount signal (RF/ABCD) from RF amp (IC501) Bottom hold signal input of the light amount signal (RF/ABCD) from RF amp (IC501) Light amount signal (ABCD) input from RF amp (IC501) Focus error signal input from RF amp (IC501) Support signal (I3 signal/temperature signal) input terminal (A/D input) Middle point voltage (+1.2V) input terminal Monitor output terminal of A/D converter input signal Not used (open) A/D converter the upper limit voltage input terminal (fixed at "H" in this set) Input "L" when the "L": reset Servo signal monitor input terminal (A/D input) from RF amp (IC501) Description
25
MZ-B100
Pin No. 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100
Pin name AVD2 AVS2 ADRB SE TE DCHG APC DSPVDD0 DSPVSS0 XTSL DIN1 DOUT DAPWMLP DAPWMLN DAPWMRP DADT ADDT LRCK XBCK FS256 MVCI DSPVDD1 ADFG F0CNT DIFVDD0 DIFVSS0 APCREF LDDR TRDR TFDR FFDR FRDR MCUVDD1 FGIN FS4 SPDU SPFD/SPVS/PWM3 SPDV SPDW DSPVDD2 DSPVSS1 SPCU SPCV SPCW SRDR SFDR SLDV SLDW SLCU
I/O -- -- I I I -- I -- -- I I O O O O O I O O O I -- I O -- -- O O O O O O -- I O O O O O -- -- I I I O O O O I Ground terminal (for the analog)
Description Power supply terminal (for the analog) (+2.4V) A/D converter the lower limit voltage input (fixed at "L" in this set) Sled error signal input terminal Not used (fixed at "L") Tracking error signal input from RF amp (IC501) Connecting analog power supply of the low impedance (fixed at "H" in this set) Error signal input for the laser automatic power control Power supply terminal (for DSP block) (+1.5V) Ground terminal (for DSP block) Input terminal for the frequency set up of the system clock "H": 22.5792MHz (fixed at "L" in this set) Input terminal of the record system digital audio signal Output terminal of the playback system digital audio signal D/A converter PWM output terminal (L-CH right phase) D/A converter PWM output terminal (L-CH reverse phase) D/A converter PWM output terminal (R-CH right phase) Audio data output to the external A/D converter Data input from the external A/D converter (IC301) L/R sampling block signal (44.1KHz) output to the external A/D converter (IC301) Bit clock signal (2.8224MHz) output to the external A/D converter (IC301) 11.2896MHz clock signal output to the external A/D converter (IC301) Clock signal input from the external VCO Not used (fixed at "L") Power supply terminal (for DSP block) (+1.5V) ADIP duplex FM signal (20.05±1kHz) input from RF amp (IC501) Filter cut off control signal output terminal Power supply terminal (for DSP I/F) (+2.3V) Ground terminal (for DSP I/F) Reference PWM signal output for the laser automatic power control to RF amp (IC501) PWM signal output for the laser automatic power control Not used (open) Tracking servo drive PWM signal output () to the motor driver (IC701) Tracking servo drive PWM signal output (+) to the motor driver (IC701) Focus servo drive PWM signal output (+) to the motor driver (IC701) Focus servo drive PWM signal output () to the motor driver (IC701) Power supply terminal (for the microcomputer block) (+1.5V) FG signal input terminal for the spindle CAV servo Not used (open) 176.4kHz clock signal output to the power control (IC601, IC901) Spindle motor drive control signal output (U) to the motor driver (IC701) Spindle servo drive PWM signal output to the motor driver (IC701) Spindle motor drive control signal output (V) to the motor driver (IC701) Spindle motor drive control signal output (W) to the motor driver (IC701) Power supply terminal (for DSP block) (+1.5V) Ground terminal (for DSP block) Spindle motor drive comparison signal input (U) from the motor driver (IC701) Spindle motor drive comparison signal input (V) from the motor driver (IC701) Spindle motor drive comparison signal input (W) from the motor driver (IC701) Sled motor drive signal output (U) to the motor driver (IC701) Sled servo drive PWM signal output to the motor driver (IC701) Sled motor drive signal output (V) to the motor driver (IC701) Sled motor drive signal output (W) to the motor driver (IC701) Sled motor drive comparison signal input (U) from the motor driver (IC701) Not used (open) Not used (open) Not used (open) Not used (open) Not used (open) "L": 45.1584MHz, Not used (fixed at "H")
Not used (open)
26
MZ-B100
Pin No. 101 102 103 104 105 106 107 108 109 110 111 112 113 114 to 117 118 119 120 to 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156, 157 158 159 160 161 162 163 164 165 166 167, 168 169 170
Pin name SLCV SLCW DIFVDD1 DIFVSS1 EFMO MNT0 MNT1 MNT2 MNT3 SENSE TX RECP DSPVDD3 NC DRAMVSS0 DRAMVDD0 NC DRAMVDD1 DRAMVSS1 TSB MST VDD RMC DTCK TSB SLV VDD TSB SLVI TSB SLVO TDI TMS TCK XTRST TDO JTAGVDD JTAGVSS MCUVDD2 MIFVDD0 MIFVSS0 TEST1, TEST0 EVA OPR LED SSB DATA SSB CLK MCUVSS0 VREC PWM VL PWM VC PWM SPDL AUX PWM NC CLK SEL OPEN CLOSE SW
I/O I I -- -- O O O O O O O O -- O -- -- O -- -- -- I/O -- I O I I I I O -- -- -- -- -- I I -- I/O O -- O O O O O O I
Description Sled motor drive comparison signal input (V) from the motor driver (IC701) Sled motor drive comparison signal input (W) from the motor driver (IC701) Power supply terminal (for DSP I/F) (+2.3V) Ground terminal (for DSP I/F) EFM encode data output for the record to the over write head drive (IC601) Internal DSP monitor output (0) terminal Internal DSP monitor output (1) terminal Internal DSP monitor output (2) terminal Internal DSP monitor output (3) terminal Not used (open) Not used (open) Not used (open) Not used (open) Not used (open)
Internal DSP (SENS) monitor output terminal Not used (open)
Record data output enable signal output monitor terminal of the internal DSP Laser power changeover signal output monitor terminal Power supply terminal (for DSP block) (+1.5V) Output terminal for the external D-RAM Ground terminal (for the external D-RAM) Power supply terminal (for the external D-RAM) (+2.4V) Output terminal for the external D-RAM Ground terminal (for the external D-RAM) Power supply terminal (for TSB master communication) (+2.8V) TSB serial data input/output with the remote commander attached headphone Power supply terminal (for I/F to TSB slave communication) TSB slave signal input from the remote commander attached headphone TSB slave signal output to the remote commander attached headphone Data input terminal for JTAG Clock input terminal for JTAG Reset input terminal for JTAG Data output terminal for JTAG Ground terminal (for JTAG) Power supply terminal (for the microcomputer block) (+1.5V) Power supply terminal (for the microcomputer I/F block) (+2.3V) Ground terminal (for the microcomputer I/F block) Input terminal for the main test (normally fixed at "L") EVA/FLASH chip discrimination terminal Not used (open) Input/output of SSB data with RF amp (IC501) SSB clock output to RF amp (IC501) Ground terminal (for the microcomputer block) Over write head control spare terminal Not used (open) PWM signal output for the laser power supply voltage control to the power control (IC901) PWM signal output for the system power supply voltage control to the power control (IC901) PWM signal output for the spindle support to the motor driver (IC701) Not used (open) System clock select signal output to the power control (IC901) Open/close detection switch (S806) of the upper panel input terminal "L": when upper panel close "L": FLASH chip, "H": EVA chip Not used (open) Not used (open) Not used (open) Not used (open) Not used (open) Test mode control input terminal for JTAG Not used (open) Power supply terminal (for the external D-RAM) (+2.4V) Not used (open) Not used (open)
Power supply terminal (for JTAG) (+2.4V)
27
MZ-B100
Pin No. 171 172 173 174, 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194, 195 196 197 to 199 200, 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219
Pin name PLCTL SET CODE0 SET CODE1 SET CODE2, 3 MIFVDD1 MIFVSS1 AOUT SEL SI0 SO0 SCK0 XGUM ON BEEP NC VD SEL XMUTE LCD RST AUX PAUSE KEY MIC SENSE XPATCH OPT DET XJACK DET XMIC DET PD S0, PD S1 MIFVDD2 MODE1 to 3 HD CON 1, 2 XTEST XCS ADA XPD ADA XCS LCD LCD STB LCD RST REC LED LD ON TSB SLV CHK K-TAI MON K-TAI SW MCUVSS1 GND SW XOPT CTL CS RTC OFTRK MUTE XCS NV
I/O O I I I -- -- -- I O O I O O O O O I O I I I I O -- O O I O O O O O O O O -- -- -- O O O O O O PL control signal output
Description Input terminal for the set (fixed at "L" in this set) Input terminal for the set (open in this set) Input terminal for the set (fixed at "L" in this set) Power supply terminal (for the microcomputer I/F block) (+2.3V) Ground terminal (for the microcomputer I/F block) Not used (open) Serial data input from the nonvolatile memory (IC804) and liquid crystal display element module Serial data output to the nonvolatile memory (IC804), A/D converter (IC301) and liquid crystal display element module Serial clock signal output to the nonvolatile memory (IC804), A/D converter (IC301) and liquid crystal display element module Rechargeable battery detection switch (S804) input terminal "L": there is rechargeable battery Beep sound control signal output to the headphone amp (IC302) Not used (open) VD power supply changeover signal output terminal "L": muting ON Reset control signal output terminal to the liquid crystal display element Pause key input terminal from the switch & LCD module Not used (open) Patch function detection input terminal DIN plug detection signal input terminal LINE IN plug detection signal input terminal Microphone plug detection signal input terminal PD IC mode changeover signal output to the optical pick up Power supply terminal (for the microcomputer I/F block) (+2.3V) Power supply control signal output (for the over write head drive) to the over write head drive (IC601) Over write head control signal output to the over write head drive (IC601) Terminal for test mode set (nomally: open) "L": test mode Chip select signal output to A/D converter (IC301) Power supply control signal output for the drive to A/D converter (IC301) Chip select signal output to the liquid crystal display element Strobe signal output to the liquid crystal display element Reset control signal output to the liquid crystal display element LED ON/OFF control signal output for REC display ON/OFF control signal output terminal of the laser diode TSB slave detection signal output terminal Not used (open) Not used (open) Ground terminal (for the microcomputer block) GND changeover control signal output Power supply ON/OFF control signal output for DIN PD drive Chip select signal output to the clock IC Off track signal output to RF amp (IC501) Analog muting control signal output "H": muting ON Not used (open) Chip select signal output to EEPROM (IC804) Not used (open) Not used (open) "L": patch function Not used (open) "L": reset Not used (open) Analog muting control signal output terminal to the headphone amp (IC302)
28
MZ-B100
Pin No.
Pin name
I/O
Description
220 221 222 223 224 225, 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244
XRST MTR DRV XRF RST MCUVDD3 SPDL MON XAVLS JOG A, B XHOLD SW SYNC REC TSB SSB CTL PROTECT FLASHVDD FLASHVSS SLD MON VLON SLEEP FFCLR CHG GAIN CHG TUN REG ON XHP STBY MIFVDD3 MIFVSS2 TEST2 NC
O O -- I I I I I O I -- -- I O O O O O O O -- -- I --
Reset control signal output to the motor driver (IC701) Reset control signal output to RF amp (IC501) Power supply terminal (for the microcomputer block) (+1.5V) Spindle servo monitor signal input from the motor driver (IC701) Input terminal for AVLS switch detection signal Jog dial pulse input terminal from the switch & LCD module HOLD switch (S801) input terminal "L": hold ON, "H": hold OFF "L": OFF, "H": ON Not used (open) Not used (open) SYNCHRO REC switch (S802) input terminal TSB/SSB changeover control signal output
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. f · : internal component. 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. · Power voltage is dc 3 V and fed with regulated dc power supply from external power voltage jack. · Voltages and waveforms are dc with respect to ground under no-signal conditions. no mark : PLAYBACK ( ) : RECORD : 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 : PLAYBACK (ANALOG IN) l : RECORD (DEGITAL IN) · 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.
z Waveforms
1
2.3Vp-p
0.56 sec
IC601 4 XIN
VOLT/DIV : 0.5 V AC TIME/DIV : 0.1 µsec
Detection input terminal of the record check claw from the protect detection switch (S803) "L": recording possible condition, "H": protect Power supply terminal (for the internal FLASH ROM) (+2.4V) Ground terminal (for the internal FLASH ROM) Sled servo monitor signal input from the motor driver (IC701) Power supply control signal output for the laser diode drive to the power control (IC901) System sleep control signal output to the power control (IC901) Charge gain control signal output to the power control (IC601) Charge ON/OFF control signal output to the power control (IC601) Not used (open) Power supply control signal output terminal for the headphone amp Power supply terminal (for the microcomputer I/F block) (+2.3V) Ground terminal (for the microcomputer I/F block) Input terminal for the main test (normally open) Not used (open) Not used (open) "H": charge ON "H": sleep ON Input latch output for the start switching to the power control (IC901)
2
2.3Vp-p
0.56 sec
IC901 th CLK
VOLT/DIV : 0.5 V AC TIME/DIV : 0.1 µsec
3
2.2Vp-p 45.1584MHz
IC801 wg OSCO
VOLT/DIV :0.5 V AC TIME/DIV : 20 nsec
Note on Printed Wiring Board: · X : parts extracted from the component side. · Y : parts extracted from the conductor side. · x : parts mounted on the conductor side. z : Through hole. · · : 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)
29
29
MZ-B100
6-2. BLOCK DIAGRAM MAIN Section (1/3)
V_REC B+ OVER WRITE HEAD 35 NB
OVER WRITE HEAD DRIVE IC601 (1/2)
OPTICAL PICK-UP BLOCK (LCX-4R)
OVER WRITE HEAD DRIVE Q604, 605
33 M603 OVER WRITE HEAD UP/DOWN 41 38
NA OUTA OUTB
EFM PRE DRIVER
EFM CLK
7 4 VRECO B+ CLK
D
(Page 32)
RF AMP, FOCUS/TRACKING ERROR AMP IC501 VREF + IY IX JX JX JY JX JY IX IY IX A B 4 VREF
M
H-BRIDGE PRE DRIVER
SYSTEM CONTROL (1/2) SW RECON OE 25 VREF
37 VRECIN1 42 C1H 28 CHARGE PUMP 1 C1L 27 C2H CHARGE PUMP 2 31 30
VRECIN2
· SIGNAL PATH : PLAYBACK : REC (ANALOG IN) : REC (DIGITAL IN)
105 EFMO DIN1
1 2 3 199 198 197 33 29 28 41 42 37 RFI 44 PEAK 45 BOTM 46 ABCD 47 FE 56 TE 74 ADFG MODE3 MODE2 MODE1
LD
2-AXIS DEVICE TRK+ (TRACKING) TRK FCS+ (FOCUS) FCS FCS TRK FCS+ U M602 (SLED) W V V W TRK+ U
CPWO1
W N
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 JY JX A B C D RF AMP, FOCUS ERROR, TRACKING ERROR
PEAK /BOTM
PEAK BOTM ABCD FE TE
HD_CON_2 HD_CON1_
RF OUT
RI FI
C2L
+ + + + LD-A ID DRIVER Q501 S0 S1 A-C 13 D-C 7 18 PD-NI 1 ADIP-IN 44 TPP/WPP ADFG 21 PD-I 19 APC 78 APCREF 49 VC 12 VREF_MON 217 OFTRK 221 XRF_RST VC 31 OFTRK 26 20 PD-O XRST SERIAL INTERFACE SBUS 23 SCK 24 S-MON 43 160 SSB DATA 161 SSB CLK 9 S MON TRK+ TRK 194 PD S0 195 PD S1 FCS+ FCS 25 S-MONITER N SLD MON U SLD MON V SLD MON W U U M601 (SPINDLE) W V V
5 6 201 200
DIN1 62
A B C
(Page 31)
SYSTEM CONTROL, DIGITAL SIGNAL PROCESSOR, 16M D-RAM IC801 (1/3)
ADDT 68 AOUTL
ADDT AOUTL, AOUTR
(Page 31)
AOUTL 29
(Page 31)
AOUTR 30
AOUTR
MOTOR DRIVER IC701 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
TRACKING COIL DRIVE FOCUS COIL DRIVE
81 TFDR 80 TRDR 82 FFDR 83 FRDR 97 SFDR 233 SLD MON 96 SLDR 98 SLDV 99 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 100 SLCV 101 SLCW 102
45 CPVO2 46 CPWO2 47
CPUO2
PWM1 SLED VOLTAGE MONITER
55
SPINDLE SERVO DRIVE SWITCH IC802
166 SPDL AUX PWM 88 SPFD/SPVS/PWM3
8 18 6 19
UO1 CPUI1 VO1 CPVI1 SPINDLE MOTOR DRIVE
UI1 VI1 WI1
56 1 2
223 SPDL MON 87 SPRD/SPDU/RTG3 SPCU 93 89 SPDV/RTG1 SPCV 94 90 SPDW/RTG2 SPCW 95 CLV_MON_W CLV_MON_V CLV_MON_U
WO1 4 CPWI1 20 COM1 17 SPINDLE VOLTAGE MONITOR BIAS
OE
48
220 XRST_MTR_DRV
54
MZ-B100
6-3. BLOCK DIAGRAM MAIN Section (2/3)
OPTICAL RECEIVER B+ SWITCH Q301 J301 LINE IN (OPT) B+ EXT MIC AMP B+ SWITCH Q313 Q314 Q316 B+ INT MIC AMP B+ SWITCH Q315 VS+
VIF B+ DIN1
(Page 30)
A
(LINE IN JACK) A/D CONVERTER IC301 LIN2 3 LIN1 1 RIN2 4 RIN1 2
IC305 3 2 AMP IC311 Q101 Q317 7 1
MIC AMP IC306 R-CH 1
J303 MIC (PLUG IN POWER)
(Page 30)
B
ADDT
9
SDTO
AUDIO I/F CONTROL
A/D CONVERTER & HPF
GAIN AMP
1
1 1
2
R-CH
SDO0 SCK0
MCLK
13 14 15
CDTI CCLK CSN
AMP IC308 2 1 2 3 1 2 7 5 MIC R
CONTROL REGISTER I/F
CLOCK DIVIDER
VS+ S301 MIC SENS H VOR AMP IC312 VOR LEVEL DETECT Q318,319 Q320 L
1 IC307
BCLK LRCK
PDN
(Page 32)
G
SDO0, SDI0, SCK0
10 12
16
11
7 3 5 6
FS256
XBCK LRCK
PDN
R-CH
7
6
5
1 MIC AMP IC310
3
MIC L
VC B+
+2.5V REG IC313
13 B+ SWITCH Q321,322 VS+ R-CH
1
SELECT SWITCH IC309 SPEAKER AMP IC304 VB B+ B+ SWITCH Q309,310 3 VCC 1 2 8 7
Q302 (2/1) VA B+ B+ SWITCH Q304,305 Q302(1/2) 13 12 BUFFER Q306 (1/2) A OUTL V RET HEADPNONE AMP IC302 OUT_L OUT B BEEP Q308
BOOSTER Q312 SPEAKER
5 4 BOOSTER Q311 J302
Q303 AOUTL, AOUTR 2 3
i
(Page 30)
C
1
22
IN_L
2 24
Q323
A OUTR BUFFER Q306 (2/2)
6 5 EQ AMP IC303
7
21
IN_R
OUT R OUT A BEEP
4 23
VC B+
F301 RVCC DTCK KEY-R RGND
BEEP
MUTING
POWER SWITCH
MUTE
BEEP
Q302(2/2) Q302 (2/2)
15
17
XBCK LRCK PDN FS256
70 69 204 71 3
215 192 191 1 193 5 4
183
218
HP/L
16 240
RMC KEY
XBCK LRCK XPD_ADA FS256
BEEP
MICAMP_CTL XMIC_DET XMONO_MODE SP_AMP
XOPT_CTL XJAC_DET OPT_DET
MUTE
V_UP
XCS_NV
OSCO
OSCI
SDI0 SDO0 SCK0
179 SIO 180 SO0 181 SCK0
SYSTEM CONTROL, DIGITAL SIGNAL PROCESSOR 16M D-RAM IC801 (2/3)
XHP_STBY
203 XCS_ADA
F
(Page 32)
XHP_DET 2 TSB_SLV_CHK 210 TSB_SLV_VDD 143 TSB_SLVI 144 VIF B+
219
24
25
X801 45.1584MHz
4 3 2 1
· R-CH is omitted · SIGNAL PATH : PLAYBACK : REC (ANALOG IN) : REC (DIGITAL IN)
SDO0 SCK0
SDIO
TSB_SLVO 145 NC RMC_DTCK 142
DO DI SK XCS
EEPROM IC804
31
31
MZ-B100
6-4. BLOCK DIAGRAM MAIN Section (3/3)
RMC KEY 7 4 56 52 54 55 1 2 3 5 NC 53 RMC-KEY REMOTE CONTROL CIRCIT L502 RF AMP(IC502) 10 6 VRMC XWK3 CLK CLK SEL FFCLR SLEEP VLON XWK1 XWK2 XWK4 VAIFON VSTB VLO VB HEADPHONE AMP (IC301), MOTOR DRIVER (IC701) B+
(Page 31)
F
(Page 30)
D
CLK
RMC_KEY FS4 CLK_SEL FFCLR SLEEP VLON WK_DET REC_KEY HALF_LOCK_SW
20 86 169 236 235 234 17 18 19 S803 OPEN (HALF LOCK)
SYSTEM CONTROL POWER CONTROL IC901 VD B+ VB VC REGURATOR BANDGAP REFERENCE STEP-UP PRE DRIVER & PWM VL VL 9 11 D903 SWITCHING REGURATOR L2 12 L2 16 VG MOTOR/COIL DRIVER (IC701) B+ L905 L904 D904
SYSTEM CONTROL IC801 (3/3)
49 SDO0, SDI0, SCK0
VREF
(Page 31)
G
DTC2 24 25 DTC1 VD SYSTEM CONTROL (IC801) B+ VIF A/D, D/A CONVERTER (IC301), SYSTEM CONTROL(IC801), EEPROM (IC804) B+ VA A/D, D/A CONVERTER (IC301), SYSTEM CONTROL (IC801) B+ VDFB 39 VD 44 VIFFB 38 VIF 42
RF2
SD0 SI0 SCK RESET STB XCS_LED CS_RTC XWK1 REC
SDO0 SDI0 SCK0 187 206 205 216 LCD_RS_AUX LCD_STB XCS_LCD CS_RTC
STEP-UP DC/DC CONVERTER SERIES PASS REGULATOR
VG
19 LG 18
VC2
45
NC 40 VAFB VA 41 D901
RESET SWITCH Q802 PAUSE REC_LED JOG_A JOG_B SET_KEY_1 SET_KEY_2 SET_KEY_3
VIF B+ VB B+ 188 PAUSE_KEY 208 REC_LED 225 JOG_A 226 JOG_B 13 SET_KEY_1 14 SET_KEY_2 15 SET_KEY_1 VC_PWM 165 VL_PWM 164
SYSTEM CONTROL (IC801), REMOTE CONTROL CIRCUIT B+ NOISE FILTER
35
VCO SWITCH
VC REGULATOR VC
36 34 L901
22 23 26 NOISE FILTER 27 46 47 V_REC OVER WRITE HEAD DRIVE CIRCUIT B+
INM2 RF2
VCOUT INM1 RF1 XRST CRST RESET SIGNAL GENERATOR DTC1 STEP-UP PRE DRIVER & PWM SWITCHING REGULATOR
L903 33 D902
L1 32 L1 28
XRST 8
VB 50
L602
S808 ERASE
S807 VOR ON/OFF
S806 CLOCK SET
S805 SOUND
VRECO1 10 VREC