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MZ-B50
SERVICE MANUAL
Ver 1.1 2001.03 With SUPPLEMENT-1 (9-927-952-83)
US Model Canadian Model AEP Model 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-MZB50-165 LCX-2R
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 Maximum 80 minutes (MDW-80, stereo recording) Maximum 160 minutes (MDW-80, monaural recording) Maximum 74 minutes (MDW-74, stereo recording) Maximum 148 minutes (MDW-74, monaural recording) Revolutions 400 rpm to 1,800 rpm (CLV) Error correction Advanced Cross Interleave Reed Solomon Code (ACIRC) Sampling frequency 44.1 kHz Sampling rate converter Input: 32 kHz/44.1 kHz/48 kHz Coding Adaptive TRansform Acoustic Coding (ATRAC) Modulation system EFM (Eight to Fourteen Modulation) Number of channels 2 stereo channels 1 monaural channel Speaker 28 mm (1 1/8 in.) dia. Frequency response 20 to 20,000 Hz ± 3 dB Wow and Flutter Below measurable limit Inputs Microphone: stereo mini-jack, 0.35 1.38 mV Line in: stereo mini-jack, 69 194 mV Optical (Digital) in: optical (digital) mini-jack Outputs i : stereo mini-jack Headphones/earphones: 5 mW + 5 mW Speaker: 300 mW Continued on next page
PORTABLE MINIDISC RECORDER
9-927-952-12
2001C0200-1 © 2001.3
Sony Corporation
Audio Entertainment Group General Engineering Dept.
General Power requirements DC 3V Two LR6 (size AA) alkaline batteries Battery operation time Battery life1) (EIAJ2)) Batteries Recording Two LR6 (size AA) Approx. Sony alkaline dry batteries 6 hours
1) The battery life may be shorter due to operating
TABLE OF CONTENTS
1. 2. Playback Approx. 18 hours 3. SERVICING NOTES 3 GENERAL 4
conditions, the temperature of the location, and varieties of batteries. 2) Measured in accordance with the EIAJ (Electronic Industries Association of Japan) standard. 3) When using LR6 (SG) Sony "STAMINA" alkaline dry batteries (produced in Japan). 4) To prevent interrupted recording due to drained batteries, use new batteries for recording operations. 5) When played using the built-in speaker.
DISASSEMBLY 3-1. Panel (Lower) ASSY 6 3-2. Main Board, Sled Control Board 3-3. Panel (Upper Lid) ASSY 7 3-4. Key Board Unit 7 3-5. BATT Board, DC Jack Board 3-6. Mechanism Deck 8 3-7. Optical Pick-up 9 TEST MODE 10
6
8
4. 5. 6.
ELECTRICAL ADJUSTMENTS 17 DIAGRAMS 6-1. Explanation of IC Terminals 22 6-2. Block Diagram Main Section (1/3) 29 6-3. Block Diagram Main Section (2/3) 31 6-4. Block Diagram Main Section (3/3) 33 6-5. Printed Wiring Boards Main Section (1/2) 6-6. Printed Wiring Boards Main Section (2/2) 6-7. Printed Wiring Boards Battery Section 6-8. Schematic Diagram Main Section (1/4) 6-9. Schematic Diagram Main Section (2/4) 6-10. Schematic Diagram Main Section (3/4) 6-11. Schematic Diagram Main Section (4/4) EXPLODED VIEWS 7-1. Panel (Lower) Section 55 7-2. Panel Upper Lid Section 56 7-3. Cabinet (Belt) Section 57 7-4. Mechanism Deck Setion (MT-MZB50-165) ELECTRICAL PARTS LIST 59
Dimensions Approx. 88.0 × 28.0 × 121.4 mm (w/h/d) (3 1/2 × 1 1/8 × 4 7/8 in.) not incl. projecting parts and controls. Mass Approx. 240 g (8.4 oz) Supplied accessories Headphones/earphones with a remote control (1) Sony LR6 (size AA) dry batteries (2) Carrying pouch (1) Hand strap (1) Design and specifications are subject to change without notice.
35 37 39 41 43 45 47
7.
58
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.
8.
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. · 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 (S801).
S801
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-2R) 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.
· 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 17)) · Replacement of CXD2660GA (IC502) and CXR701080-020GA (IC801) used in this set requires a special tool.
laser-tap
OPTICAL PICK-UP FLEXIBLE BOARD
3
SECTION 2 GENERAL
LOCATION AND FUNCTION OF CONTROLS
Front of the recorder
1 2 3 4 5 6 7 8 9 0 qa qs qd qf qg qh qj qk ql w; wa ws wd wf
This section is extracted from instruction manual.
1 EASY SEARCH +/ buttons 2 VOR indicator 3 PLAY MODE button 4 DISPLAY button 5 .REVIEW/AMS/>CUE/AMS (search /AMS) button 6 FAST PB button 7 x STOP button 8 i (headphones/earphones) jack 9 OPEN switch 0 N PLAY (play) button qa X PAUSE button qs HOLD switch qd Display window qf Microphones qg Speaker qh EDIT/ENTER button qj DC IN 3V jack qk TRACK MARK button ql ERASE button w; REC MODE switch wa VOR button ws VOL control wd REC indicator wf z REC button
Back of the recorder
1 4 2 5 6 3 7
1 Battery compartment 2 CLOCK SET button 3 SYNCHRO REC (synchro-recording) switch 4 MIC (PLUG IN POWER) jack 5 LINE IN (OPTICAL) jack 6 MIC SENS switch 7 MEGA BASS button
4
The display window
1 2 3 4 5 6 7 8 9 0 qa qs qd qf qg qh qj
1 V-UP indication 2 Fast Playback indication 3 Disc indication Shows that the disc is rotating for recording, playing or editing an MD. 4 STEREO (stereo)/MONO (monaural) indication 5 Play mode indication 6 REC indication Lights up while recording. When flashing, the recorder is in record standby mode. 7 Pause indication 8 SYNC (synchro-recording) indication 9 VOR indication 0 Mega Bass indication qa Character information display Displays the disc and track names, date, error messages, track numbers, etc. qs Battery indication qd 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. qf REC DATE (recorded/current date) indication Lights up along with the date and time he MD was recorded. When only " DATE" lights up, the current date and time are displayed. qg Time display qh Level meter Shows the volume of the MD being played or recorded. qj AM/PM indication
The headphones/earphones with a remote control 1 Stereo mini plug 2 V-UP button 3 TRACK MARK button 4 HOLD switch Slide to lock the controls of the remote control.
7 5 8 9 0
1 2 3 4
6
5 X (pause) button 6 Headphones/earphones 7 x (stop) button 8 >N buttons 9 .REVIEW/AMS 0 VOL control
5
SECTION 3 DISASSEMBLY
z The
equipment can be removed using the following procedure.
BATT board, DC jack board Panel (lower) ASSY Main board, Sled control board Panel (upper lid) ASSY Mechanism deck Key board unit Optical pick-up
Set
Note : Follow the disassembly procedure in the numerical order given.
3-1. PANEL (LOWER) ASSY
3 Claw 7 Claws 6 Claw Panel (lower) Assy
5 Screw (B1.7x5) 8 Ornament (L) 1 Screws (B1.7x6) 4 Claws Ornament (R) 2 Screws (B1.7x5)
7 Claws
3-2. MAIN BOARD, SLED CONTROL BOARD
9 Remove solder (4 places)
8 Motor flexible board (CN602)
Sled control board
7 Switch unit (CN802) qs
3
5 Connector unit (CN801) 6 OP flexible board 2 OPEN 4 Screw (1.7x3)
1 Screws (1.7x3)
0 Remove solder (3 places)
Main board
qa Remove solder (4 places) 4 Screws (1.7x3)
6
3-3. PANEL (UPPER LID) ASSY
Panel (upper lid) ASSY
Spring (UP), tension
1 Screw (step M1.4) 2
1 Screw (step M1.4) 3 Claw
3 Claw
3-4. KEY BOARD UNIT
Panel (upper lid) sub ASSY
2 Screws (B1.7x4)
2 Screws (B1.7x4) 6 Screws (1.7x3) 1 Screw, ornament 3 Button (upper lid) 7 Cabinet (upper lid)
5 Key board unit
8
4 Screws (1.7x3)
7
3-5. BATT BOARD, DC JACK BOARD
1 Screws (1.7x3) 1 Screws (1.7x3)
BATT board 3 4 Screws (1.7x3)
DC jack board
2 Insert a precision screwdriver and move a point of battery terminal (+) away from a claw.
Cabinet (belt)
3-6. MECHANISM DECK
5 Head flexible board (CN2001)
Mechanism deck (MT-MZB50-165)
3 Screws (step) 6
8 Motor flexible board
4
7 OP flexible board 4
Cover (flexible)
Cover (flexible)
2 Screws (1.7x2.5) 2 Screws (1.7x2.5) 1 Spacer (flexible cover) 1 Spacer (flexible cover)
8
3-7. OPTICAL PICK-UP
1 Washer (0.8 - 2.5) 3 Precision pan screw (M1.4) 4 Rack spring 5 Screw 2 Gear (SA) 7 Pull off the lead screw. 5 Screw
8 Bearing
6
9 Peel off the head flexible board
Mechanism deck (MT-MZB50-165)
B
Optical pick-up (LCX-2R)
0 Opening the over write head toward the direction A, remove the OP Service assy toward the direction B. Note: Do not open the entire assy forcibly, when opening the over write head.
Over write head section
A
9
SECTION 4 TEST MODE
[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. Though LCD display shows the LCD of the remote commander, same contents are also displayed on the LCD of the set. 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
[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 BP801 (TEST) on the MAIN board with a solder bridge (connect pin y; of IC801 to the ground). Then, turn on the power.
BP801 SHORT: TEST MODE OPEN: NORMAL MODE
MAIN BOARD (SIDE A)
All lit
C810
GRN R805 R803 R804 YEL
X801
R807 R850
R849 R848
All off
R851
BP801 SHORT: TEST MODE OPEN: NORMAL MODE
IC804
5 1
Microprocessor version display
V0.000
000
R802
IC801
*
6
10 X802
· 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 BP801 (TEST) on the MAIN board.
C808
R812 R813 C807
L801
T
R838
R
Note: Remove the solders completely. Remaining could be shorted with the chassis, etc.
For test mode set with the method 2: Turn off the power.
Note: If electrical adjustment (see page 18) has not been finished completely, always start in the test mode. (The set cannot start in normal mode.)
10
[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 10) 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
000 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.
11
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 17)
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).
12
[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 10) 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
13
[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 10) 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).
14
· 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 10.) 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.
15
[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 10) 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 FAST PB MEGA BASS VOR ERASE REC MODE (STEREO) REC MODE (MONO) Indication PLAY FF FR PAUSE EASY + EASY STOP REC T MARK HLDon HLDoff SYCon SYCoff P MODE DISP ENTER FAST P M BASS VOR ERASE RMODEs RMODEm
Remote commander key
Key N/> . X x Indication rPLAY rFR rPAUSE rSTOP
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.
16
SECTION 5 ELECTRICAL ADJUSTMENTS
[Outline]
· In this set, automatic adjustment of CD and MO can be performed by entering the test mode. (See page 10) 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.
[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 Overall Mode r 5. MO Overall Adjustment
17
· 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 11)
LCD display
digital voltmeter TP914 (VR) TP5105 (GND)
L
C610
VclPWM
762
MAIN BOARD (SIDE B)
R937 R924 R936 R923
2. Connect a digital voltmeter to the TP915 (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 TP915 (VC)
TP915 (VC)
TP914 (VR)
C501 R505 C517 C516 C511 C508 C 09 R507 C502
C504 C503
R537
R536
C514 R518 C526 R517
R535
L
MAIN BOARD (SIDE B)
TP915 (VC)
TP5105 (GND)
C611
C610
629
R520
TP5105 (GND)
3. Press the X key to write the adjusted value.
5
Q
R609
R608
· 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 11)
LCD display
C501 R505 C517 C516 C511 C508 R507 C502
VrlVcl
764
TP5105 (GND)
C504 C503
C514 R518 C526 R517
R520
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 11)
LCD display
2. Connect a digital voltmeter to the TP914 (VR) 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 TP914 (VR) TP5105 (GND)
L
VrhVcl
763
R937 R924 R936 R923
MAIN BOARD (SIDE B)
C610
2. Connect a digital voltmeter to the TP914 (VR) 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.
TP915 (VC)
TP914 (VR)
C501 R505 C517 C516 C511 C508 C 09 R507 C502
C504 C503
R537
R535
R536
C514 R518 C526 R517
629
R520
TP5105 (GND)
3. Press the X key to write the adjusted value.
18
· 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 11)
LCD display
digital voltmeter TP914 (VR) TP5105 (GND)
L
C610
VchPWM
2. Connect a digital voltmeter to the TP915 (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
R937 R924 R936 R923
MAIN BOARD (SIDE B)
765
TP915 (VC)
TP914 (VR)
C501 R505 C517 C516 C511 C508 C 09 R507 C502
C504 C503
TP915 (VC)
R537 R536 C514 R518 C526 R517 R535
L
MAIN BOARD (SIDE B)
TP915 (VC)
TP5105 (GND)
C611
C610
629
R520
TP5105 (GND)
3. Press the X key to write the adjusted value.
5
Q
· 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 11)
LCD display
R609
C501 R505 C517 C516 C511 C508 R507 C502
R608
VrlVch
767
TP5105 (GND)
C504 C503
R520
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 11)
LCD display
2. Connect a digital voltmeter to the TP914 (VR) 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 TP914 (VR)
C514 R518 C526 R517
VrhVch
766
R937 R924 R936 R923
MAIN BOARD (SIDE B)
TP5105 (GND)
L
2. Connect a digital voltmeter to the TP914 (VR) 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.
C610
TP915 (VC)
TP914 (VR)
C501 R505 C517 C516 C511 C508 C 09 R507 C502
C504 C503
R537
R535
R536
C514 R518 C526 R517
629
R520
TP5105 (GND)
19
[Temperature Correction]
· Adjustment Method of temperature correction 1. Select the manual mode of test mode, and set the mode number 014. (See page 11)
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 10) 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 11) 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
20
· 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 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
R1005 R1005
C517 C516 C511 C508 C509 C515 C507 C522 R502 C531 C502
C504 C503
MO double speed read TWPP offset adjustment
TP5105 (GND)
C505 C506 C513 R1010 C1003 C1002 R1001 R1003 C1004 Q1001 R1002 R1004 R1006
S G D
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 11) 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 11) 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 R1005 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 R1005 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 R1005 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.
21
R1005
SECTION 6 DIAGRAMS
6-1. EXPLANATION OF IC TERMINALS
· MAIN BOARD IC501 SN761056CDBT (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
Description Tracking error signal output to the CXD2660GA (IC502) 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 the CXD2660GA (IC502) 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) Off track signal input from the CXD2660GA (IC502) Ground terminal (digital system) Light amount signal (RF/ABCD) bottom hold output to the CXD2660GA (IC502) Light amount signal (RF/ABCD) peak hold output to the CXD2660GA (IC502) 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 the CXD2660GA (IC502) 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 the CXD2660GA (IC502) Focus error signal output to the CXD2660GA (IC502) Servo signal monitor output to the system controller (IC801) ADIP duplex FM signal (22.05 kHz ± 1 kHz) input terminal Not used "L": reset
22
· MAIN BOARD IC502 CXD2660GA (DIGITAL SIGNAL PROCESSOR, DIGITAL SERVO SIGNAL PROCESSOR, EFM/ACIRC ENCODER/DECODER, SHOCK PROOF MEMORY CONTROLLER, ATRAC ENCODER/DECODER, 16M BIT D-RAM) Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 to 29 30 31 32 33 34 35 36, 37 38 39 40 41 42 43 44 45 Pin name VDC0 MNT0 MNT1 MNT2 MNT3 SWDT SCLK XLAT VSC0 SRDT SENS
I/O -- I/O O O O I I (S) I (S) -- O (3) O (3) I (S) O O I O I -- I O -- -- -- I I I O O -- I I I I O O -- O Not used (open)
Description Power supply terminal (+1.8V) (for internal logic) Recording shock detect signal output to the system controller (IC801) Off track signal output to the SN761056CDBT (IC501) and system controller (IC801) Focus OK signal output to the system controller (IC801) "H": is output when focus is on ("L": NG) Serial data input from the system controller (IC801) Serial clock signal input from the system controller (IC801) Serial data latch pulse input from the system controller (IC801) Ground terminal (for internal logic) Serial data output to the system controller (IC801) Internal status (SENSE) output to the system controller (IC801) Reset signal input from the system controller (IC801) "L": reset Subcode Q sync (SCOR) output the system controller (IC801) "L" is output every 13.3 msec Almost all, "H" is output Digital In U-bit CD format subcode Q sync (SCOR) output to the system controller (IC801) "L" is output every 13.3 msec Almost all, "H" is output Laser power selection signal input from the system controller (IC801) "L": playback mode, "H": recording mode Interrupt status output to the system controller (IC801) Recording data output enable signal input from the system controller (IC801) Writing data transmission timing input Power supply terminal (+2.4V) (for I/O) System clock (512Fs=22.5792 MHz) input terminal System clock (512Fs=22.5792 MHz) output terminal Ground terminal (for I/O) Not used (open) Ground terminal (for internal logic) Input terminal for the system clock frequency setting "L": 45.1584 MHz, "H": 22.5792 MHz (fixed at "H" in this set) Chip select signal input from the system controller (IC801) Digital audio signal input terminal when recording mode Digital audio signal output terminal when playback mode Not used (open) Power supply terminal (+1.8V) (for internal logic) Serial data input terminal Not used (fixed at "L") L/R sampling clock signal (44.1 kHz) input terminal "L": Rch, "H": Lch Not used (fixed at "L") Serial input/output data bit clock signal (2.8224 MHz) input terminal Not used (fixed at "L") Recording data signal input from the A/D, D/A converter (IC301) Playback data signal output to the A/D, D/A converter (IC301) L/R sampling clock signal (44.1 kHz) output to the A/D, D/A converter (IC301) Ground terminal (for internal logic) Serial input/output data bit clock signal (2.8224 MHz) out put to the A/D, D/A converter (IC301) Not used (open)
XRST
SQSY DQSY (MTFLGL) RECP XINT TX VDIO0 OSCI OSCO VSIO0 NC VSC1 XTSL XCS_DSP DIN1 DOUT DT72 VDC1, VDC2 DATAI LRCKI XBCKI ADDT DADT LRCK VSC2 XBCK
* I (S) stands for schmitt input, I (A) for analog input, O (3) for 3-state output, and O (A) for analog output in the column I/O
23
Pin No. 46 47 to 52 53 54 55 to 59 60 61 62 63 64 to 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 99 100 101 102
Pin name FS256 A03, A04, A02, A05, A01, A06 VDIO1 VSIO1 A00, A07, A10, A08, A09 XRAS
I/O O O -- -- O O O O O I/O -- -- O O O I (S) O (A) I (A) -- I (A) I (A) -- O (3) I (A) O (A) I (A) I (A) I (A) I (A) I (A) I (A) I (A) O (A) I (A) -- -- I (A) I (A) I (A) I (A) I (A) I (A) -- -- O
Description Clock signal (11.2896 MHz) output to the A/D, D/A converter (IC301) (X' tal system) Address signal output to the external D-RAM Not used (open) Power supply terminal (+2.4V) (for I/O) Ground terminal (for I/O) Address signal output to the external D-RAM Not used (open) Row address strobe signal output to the external D-RAM "L" active Not used (open) Output enable signal output terminal for internal D-RAM "L" active Not used (open) Data write enable signal output terminal for internal D-RAM "L" active Not used (open) Column address strobe signal output to the external D-RAM "L" active Not used (open) Two-way data bus with the external D-RAM Not used (open) Power supply terminal (+1.8V) (for internal logic) Ground terminal (for internal logic) Address signal output to the external D-RAM Not used (open) Output enable signal output to the external D-RAM "L" active Not used (open) Data write enable signal output to the external D-RAM "L" active Not used (open) Digital in PLL oscillation input from the external VCO Not used (fixed at "L") Playback EFM full-swing output terminal Playback EFM asymmetry comparator voltage input terminal Power supply terminal (+2.4V) (analog system) Playback EFM asymmetry circuit constant current input terminal Playback EFM RF signal input from the SN761056CDBT (IC501) Ground terminal (analog system) Phase comparison output for master clock of the recording/playback EFM master PLL Filter input for master clock of the recording/playback EFM master PLL Filter output for master clock of the recording/playback EFM master PLL Internal VCO control voltage input of the recording/playback EFM master PLL Light amount signal (RF/ABCD) peak hold input from the SN761056CDBT (IC501) Light amount signal (RF/ABCD) bottom hold input from the SN761056CDBT (IC501) Light amount signal (ABCD) input from the SN761056CDBT (IC501) Focus error signal input from the SN761056CDBT (IC501) Auxiliary signal (I3 signal/temperature signal) input terminal Not used (fixed at "H") Middle point voltage (+1.2V) input terminal Monitor output of the A/D converter input signal Not used (open) A/D converter operational range upper limit voltage input terminal (fixed at "H" in this set) Power supply terminal (+2.4V) (analog system) Ground terminal (analog system) A/D converter operational range lower limit voltage input terminal (fixed at "L" in this set) Sled error signal input terminal Not used (fixed at "L") Tracking error signal input from the SN761056CDBT (IC501) Connected to the +2.4V power supply Error signal input for the laser automatic power control Not used (fixed at "H") ADIP duplex FM signal (22.05 kHz ± 1 kHz) input from the SN761056ADBT (IC501) Power supply terminal (+2.4V) (for I/O) Ground terminal (for I/O) Filter f0 control signal output terminal Not used (open)
IXOE
IXWE
XCAS VDC3 VSC3 A11
D1, D2, D0, D3
XOE
XWE
MVCI ASYO ASYI AVD1 BIAS RFI AVS1 PCO FILI FILO CLTV PEAK BOTM ABCD FE AUX1 VC ADIO ADRT AVD2 AVS2 ADRB SE TE DCHG APC ADFG VDIO2 VSIO2 F0CNT
* I (S) stands for schmitt input, I (A) for analog input, O (3) for 3-state output, and O (A) for analog output in the column I/O
24
Pin No. 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 to 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147
Pin name XLRF CKRF DTRF APCREF LDDR VDC4 TRDR TFDR FFDR FRDR FS4 SRDR SFDR VSC4 SPRD SPFD FGIN TEST1 to TEST3 EFMO SPVS VDIO3 VSIO3 SPDU SPDV SPDW SPCU SPCV SPCW SLDU SLDV SLDW VDC5 VSC5 SLCU SLCV SLCW SLVS BYPS VSS VDD VSS VDD IVC
I/O O O O O O -- O O O O O O O -- O O I I O O -- -- O O O I I I O O O -- -- I I O O O -- -- -- -- O Serial latch signal output terminal Serial clock signal output terminal Writing data output terminal power control
Description Not used (open) Not used (open)
Not used (open)
Control signal output to the reference voltage generator circuit for the laser automatic PWM signal output for the laser automatic power control Not used (open) Power supply terminal (+1.8V) (for internal logic) Tracking servo drive PWM signal () output to the XC111256FTAEB (IC601) Tracking servo drive PWM signal (+) output to the XC111256FTAEB (IC601) Focus servo drive PWM signal (+) output to the XC111256FTAEB (IC601) Focus servo drive PWM signal () output to the XC111256FTAEB (IC601) Clock signal (176.4 kHz) output to the MPC18A20MTAEL (IC603) (X' tal system) Sled servo drive PWM signal () output terminal Not used (open) Sled servo drive PWM signal (+) output terminal Not used (open) Ground terminal (for internal logic) Spindle servo drive PWM signal () output terminal Not used (open) Spindle servo drive PWM signal (+) output terminal Not used (open) FG signal input terminal for spindle servo Not used (open) Input terminal for the test (normally : fixed at "L") EFM signal output when recording mode to the MPC18A20MTAEL (IC603) Spindle servo drive voltage control signal output to the XC111256FTAEB (IC601) Power supply terminal (+2.4V) (for I/O) Ground terminal (for I/O) Spindle servo (U) drive signal output to the XC111256FTAEB (IC601) Spindle servo (V) drive signal output to the XC111256FTAEB (IC601) Spindle servo (W) drive signal output to the XC111256FTAEB (IC601) Spindle servo (U) timing signal input from the XC111256FTAEB (IC601) Spindle servo (V) timing signal input from the XC111256FTAEB (IC601) Spindle servo (W) timing signal input from the XC111256FTAEB (IC601) Sled servo (1+) drive signal output to the XC111256FTAEB (IC601) Sled servo (1) drive signal output to the XC111256FTAEB (IC601) Sled servo (2+) drive signal output to the XC111256FTAEB (IC601) Power supply terminal (+1.8V) (for internal logic) Ground terminal (for internal logic) Sled servo (1) timing signal input from the XC111256FTAEB (IC601) Sled servo (2) timing signal input from the XC111256FTAEB (IC601) Sled servo (2) timing signal output to the XC111256FTAEB (IC601) Sled servo voltage control signal output to the XC111256FTAEB (IC601) By-pass transistor control signal output to the XC111256FTAEB (IC601) Ground terminal (for internal 16M bit D-RAM) Power supply terminal (+2.4V) (for internal 16M bit D-RAM) Ground terminal (for internal 16M bit D-RAM) Power supply terminal (+2.4V) (for internal 16M bit D-RAM) Output terminal for the test Not used (open)
25
· MAIN BOARD IC801 CXR701080-020GA (MASTER CONTROLLER) 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 Pin name SYNC REC OFTRK PROTECT PAUSE KEY TX SENSE WRPWR XLAT XCS DSP CS RTC SI0 SO0 SCK0 OCLT (NC) VSS VDD NC BEEP RMC DTCK XCS LCD LCD STB LCD RST XHP STBY CLV U CLV V CLV W MODE1 MODE2 MODE3 HD CON 1 HD CON 2 XREC MODE LD ON VOR SLD MON 1 I/O I I I I O I O O O O I O O -- -- -- -- O I/O O O O O O O O O O O O O O O O I Description SYNCHRO REC switch (S801) input terminal "L": off, "H": on Off track signal input from the CXD2660GA (IC502) Rec-proof claw detect input from the protect detect switch (S806) "L": recording possible , "H": protect Set pause key input terminal Recording data output enable signal output to the CXD2660GA (IC502) Writing data transmission timing output Internal status (SENSE) input from the CXD2660GA (IC502) Laser power select signal output to the CXD2660GA (IC502) "L": playback mode , "H": recording mode Serial data latch pulse output to the CXD2660GA (IC502) Chip select signal output to the CXD2660GA (IC502) Chip select signal output to the real time clock (IC804) Serial data input from the A/D, D/A converter (IC301), CXD2660GA (IC502), EEPROM (IC802), real time clock (IC804) and switch & liquid crystal display module unit Serial data output to the A/D, D/A converter (IC301), CXD2660GA (IC502), EEPROM (IC802), real time clock (IC804) and switch & liquid crystal display module unit Serial clock signal output to the A/D, D/A converter (IC301), CXD2660GA (IC502), EEPROM (IC802), real time clock (IC804) and switch & liquid crystal display module unit Not used (open) Ground terminal Power supply terminal (+2.4V) Not used (open) Beep sound control signal input terminal TSB serial communication data input/output terminal for remote commander with headphone Chip select signal output to the liquid crystal display Strobe signal output to the liquid crystal display Reset control signal output to the liquid crystal display Standby on/off control signal output to the line/headphone amplifier (IC303) "L": standby mode, "H": amplifier on Spindle servo (U) drive signal output to the XC111256FTAEB (IC601) Spindle servo (V) drive signal output to the XC111256FTAEB (IC601) Spindle servo (W) drive signal output to the XC111256FTAEB (IC601) Power supply control signal output for over write head drive to the MPC18A20MTAEL (IC603) Power supply control signal output for over write head drive to the MPC18A20MTAEL (IC603) Power supply control signal output terminal for over write head drive Over write head control signal output to the MPC17A17XDTBR2 (IC602) Over write head control signal output to the MPC17A17XDTBR2 (IC602) Not used (open) Laser diode on/off control signal output terminal "L": laser off, "H": laser on Not used (open) VOR on/off control signal output terminal Sled servo timing signal input from the XC111256FTAEB (IC601)
26
Pin No. 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75
Pin name PD S0 MIC AMP PD S1 FFCLR SLEEP VOICE UP SP AMP XRST VSS XTAL EXTAL VDD MEGA BASS SPDL START SW OPEN CLOSE SW XSHOCK FOK SQSY DQSY XINT T.MARK REC WBL SW SERON PLUNGER XTEST SET CODE0 SET CODE1 SET CODE2 REG CTL PWM VRM PWM VC PWM SPDL PWM XIC RST REC LED VOR LED VOR OUT MONO XHOLD SW VDD TEX
I/O O O O O O O O I -- O I -- I/O O I I I I I I I O O O I I I I O O O O O O O O I I -- I
Description PD IC mode switching signal output to the optical pick-up block +2.5V REG on/off control signal output terminal PD IC mode switching signal output to the optical pick-up block Input latch output for starting signal to the MPC18A31FTAEB (IC901) System sleep control signal output to the MPC18A31FTAEB (IC901) "H": sleep on Voice up on/off control signal output terminal Speaker amp on/off control signal output terminal System reset signal input from the MPC18A31FTAEB (IC901) "L": reset For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H" Ground terminal Main system clock output terminal (16.9344 MHz) Main system clock input terminal (16.9344 MHz) Power supply terminal (+2.4V) MEGA BASS switch (S814) input terminal Spindle servo start switching signal output to the analog switch (IC504, 505) Upper panel open/close detect switch (S801) input terminal (A/D input) "L": upper panel close, "H": upper panel open Recording shock detect signal input from the CXD2660GA (IC502) Focus OK signal input from the CXD2660GA (IC502) "H": is input when focus is on ("L": NG) Subcode Q sync (SCOR) input from the CXD2660GA (IC502) "L" is input every 13.3 msec Almost all, "H" is input Digital In U-bit CD format subcode Q sync (SCOR) input from the CXD2660GA (IC502) "L" is input every 13.3 msec Almost all, "H" is input Interrupt status input from the CXD2660GA (IC502) T MARK switch (S803) input terminal Stable control signal is output when recording Series power supply control signal output to the MPC18A31FTAEB (IC901) REC button release plunger control output Setting terminal for the test mode "L": test mode, normally: fixed at "H" Destination setting terminal Fixed at "L" in this set Destination setting terminal Fixed at "L" in this set (US, canadian model: Not used (open)) Destination setting terminal Fixed at "L" in this set (US, canadian model: Not used (open)) Synchronizing external clock signal output to the MPC18A31FTAEB (IC901) VREM power supply voltage control PWM signal output to the MPC18A31FTAEB (IC901) System power supply voltage control PWM signal output to the MPC18A31FTAEB (IC901) Spindle servo drive voltage control PWM signal output to the XC111256FTAEB (IC601) Reset signal output to the A/D, D/A converter (IC301), SN761056ADBT (IC501) and CXD2660GA (IC502) "L": reset REC LED drive signal output terminal "H": LED on VOR LED drive signal output terminal "H": LED on VOR ON/OFF signal output terminal REC MODE switch (S805) input HOLD switch (S804) input terminal Power supply terminal (+2.4V) Sub system clock input terminal Not used (open) "L": hold on, "H": hold off
27
Pin No. 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 to 109 110 111 112 113 114 115 116 117 118 119 120
Pin name TX VSS VBKAN S MON VB MON SET KEY3 VREF MON WK DET HALF LOCK SW RMC KEY SET KEY 1 SET KEY 2 REC KEY VRM MON HIDC MON AVSS AVREF AVDD TEST0 TEST1 TDI TMS TCK TRST TDO PLAY KEY SSB DATA SSB CLK FLASH WR EN VDD VSS VLC1 to VLC3 XCS ADA XPD ADA XRST MTR DRV OPT DET XJACK DET XMIC DET XHP DET XOPT CONT MUTE XCS NV CLOCK SET
I/O O -- I I I I I I I I I I I I I -- I -- I I I I I I O O I/O O -- -- -- -- O O O I I I I O O O I Sub system clock output terminal Ground terminal Sub power supply input terminal
Description Not used (open)
Servo signal monitor input from the SN761056ADBT (IC501) (A/D input) Un-regulator power supply voltage monitor input terminal (A/D input) VOR key (S811), ERASE key (S813) input Reference voltage monitor input from the SN761056ADBT (IC501) (A/D input) Set key starting detect signal input terminal (A/D input) Open knob detect switch (S802) input terminal "L": normal position, "H": open knob slid Remote commander with headphone key input terminal (A/D input) Set key input terminal (A/D input) REC key input terminal VREM voltage monitor input terminal (A/D input) HI-DC voltage monitor input terminal (A/D input) Ground terminal (for A/D converter) Input terminal for power supply voltage adjustment reference voltage (+2.4V) (for A/D converter) Power supply terminal (+2.4V) (for A/D converter) Input terminal for the test (normally: fixed at "L") Input terminal for the test (normally: fixed at "L") Input terminal for JTAG Not used (open) Input terminal for JTAG Not used (open) Input terminal for JTAG Not used (open) Input terminal for JTAG Not used (open) Output terminal for JTAG Not used (open) Not used (fixed at "H") Two-way SSB serial data bus with the SN761056ADBT (IC501) SSB serial clock signal output to the SN761056ADBT (IC501) Not used (fixed at "H") Power supply terminal (+2.4V) Ground terminal Power supply terminal for the liquid crystal display (+2.4V) Chip select signal output to the A/D, D/A converter (IC301) Power supply control signal output to the A/D, D/A converter (IC301) Reset signal output terminal "L": reset Not used (open) DIN plug detect signal input terminal LINE IN plug detect signal input terminal MIC plug detect signal input terminal Headphones jack detect signal input terminal Power supply control signal output to the DIN plug laser diode Analog muting on/off control signal output terminal "L": muting off, "H": muting on Chip select signal output to the EEPROM (IC802) CLOCK SET key (S808) input terminal (x, >, .,VOL +/ keys input) Set key input terminal (A/D input) (B, jog, END SEARCH keys input)
28
MZ-B50
6-2. BLOCK DIAGRAM MAIN Section (1/3)
BATT BOARD (1/2)
HR601 OVER WRITE HEAD OPTICAL PICK-UP BLOCK (LCX-2R)
MAIN BOARD (1/3)
OVER WRITE HEAD DRIVE Q601, 602 10 11
HB EFM LOGIC EFM 14 123 EFMO
ADDT 41
ANALOG REC
A B C
HA
DIN1 33 CK 19 113 FS4 DIGITAL SIGNAL PROCESSOR, EFM/ACIRC ENCODER/DECODER, SHOCK PROOF MEMORY CONTROLLER, ATRAC ENCODER/DECODER, 16M BIT D-RAM
DIGITAL REC
RF AMP, FOCUS/TRACKING ERROR AMP
IC501
DETECTOR JX JY JX JY B C D B A I-V AMP A B 14 A 12 D 6 C 5 ABCD AMP ADIP FOCUS ERROR AMP TRACKING ERROR AMP TON JX 10 JY 11 IY 8 IX 9 RF OUT PEAK PEAK/ BOTM BOTM 33 29 28 CONTROL LOGIC 18
COSC
DADT, XBCK, LRCK, FS256 DADT XBCK LRCK FS256 42 45 43 46
OSC VIN 24 B+ SWITCH Q603, 604 OVER WRITE HEAD B+
78 RFI 74 ASYO 75 ASYI
MODE3
RF AMP
SAW. GEN.
CHARGE PUMP
C1L 21 VGH 22 C1H 23 MODE1 17 16 MODE1 MODE2
81 FILI FILTER 80 PCO 83 CLTV
IC502 (1/2)
OSCO 20 OSCI 19
ABCD ADFG FE TE OFTRK
21 42 1 26
OVER WRITE HEAD DRIVE
IX
IY IY IX D C
IC603
4 3 5
14 13 16 11 8 17 32 10 6 7
SRDT SWDT SCLK
MNT2 MNT1 MNT3
41
MODE2
82 FILO
DQSY SQSY XINT SENS XLAT TX XCS_DSP
X501 22.5792MHz
RESET 68
D
LASER DIODE S-MONITOR LD-A AUTOMATIC POWER CONTROL Q1001 PD-O TPP/WPP
S-MON WPPLPF
43 3 LOW-PASS FILTER SWITCH Q501
79 S MON
XIC RST
20
APC
57 REC WBL SW
OFTRK 2 XSHOCK 51 FOK 52 DQSY 54 SQSY 53 XINT 55 SENSE 6 XLAT 8 TX 5 XCS DSP 9 SI0 11 SO0 12 SCK0 13
PD
LD MON PD S0 PD S1 18 PD-NI
SERIAL INTERFACE
SBUS XRST PD-I SCK
27 MODE1 28 MODE2 29 MODE3
SWDT SCLK
SWDT, SCLK
E
19
23 24 25
DATA CLK
2-AXIS DEVICE
(TRACKING) (FOCUS)
TRK+ 106
APCREF
102 103 36 38 12
XRST
SSB DATA SSB CLK PD S0 PD S1
SRDT SWDT SCLK OVER WRITE HEAD UP/DOWM MOTOR DRIVE
SRDT, SWDT, SCLK
F
IC602
BATT B+ DC/DC CONVERTER D603 2 13
30 TRK FCS+ FCS 32 7 5 11 9
FO3 RO3 FO1 RO1 FO2 RO2 SLED MOTOR DRIVE FOCUS COIL DRIVE TRACKING COIL DRIVE
FI3 RI3 FI1 RI1
SYSTEM CONTROLLER
21 22 16 15
110 TFDR 109 TRDR 111 FFDR 112 FRDR
IC801 (1/3)
PEAK BOTM ABCD ADFG FE TE 84 85 86 99 87 96 35 SLD MON 1
IC605
Q607 B+ SWITCH Q605 VC
VMC VMAB C2H C2L CHARGE PUMP
5 6 12 11
VC B+
1
LVDET
C1H C1L
M602 (SLED)
M
26 28
FO4 RO4
FI2 RI2 PWM24 FI4 RI4
14 13 25 23 24 SPINDLE SERVO DRIVE SWITCH IC504, 505
133 SLDU 134 SLDV 141 SLVS 135 SLDW 140 SLCW
RECP 15
7
WRPWR
HD CON 2 31 HD CON 1 30
8 7
IN2 IN1
CONTROL LOGIC
MOTOR DRIVE
OUTB OUTA
14 3
M
M603 OVER WRITE HEAD UP/DOWM
SLED CONTROL BOARD
SLED SPEED SWITCH 1 2 5 6 SLED VOLTAGE MONITOR 7 3 SWITCH Q1, 2, 3 FOCUS/TRACKING COIL DRIVE, SPINDLE/SLED MOTOR DRIVE
SLCU 138 SLCV 139
IC504
1 7 124 127 128 129 SPVS SPDU SPDV SPDW
IC1
DIGITAL SERVO SIGNAL PROCESSOR
49 SPDL START SW
IC604
MAIN BOARD (3/3)
IC601
PWMI
3
2
IC502 (2/2)
SPCU 130 SPCV 131 SPCW 132 67 24 25 26 SPDL PWM CLV U CLV V CLV W
UI UO 46 CPUI 40 VO 44 CPVI 39 WO 42 CPWI 38 SPINDLE VOLTAGE MONITOR 34 35 36
SPCW SPCV SPCU
2 1
5
6 3
I
U W V
VI SPINDLE MOTOR DRIVE WI
IC505
48 2
SPDL PWM
1 7
CLV U CLV V CLV W
5
6 3
BIAS
OE
· SIGNAL PATH : PLAY : REC (ANALOG IN) : REC (DIGITAL IN)
M601 (SPINDLE)
SLCU SLCV
17 OE
G
02
29
30
MZ-B50
6-3. BLOCK DIAGRAM MAIN Section (2/3)
MAIN BOARD (2/3)
VC B+ DIGITAL REC B+ SWITCH Q302
OPTICAL RECEIVER
B
+2.5V REGULATOR
VC B+
J301 LINE IN (OPTICAL)
IC305
35 38
VRAD
VRDA
A/D, D/A CONVERTER
IC301 A
ANALOG REC 4 STDO HIGH-PASS FILTER
ADCL A/D CONVERTER ADCR
47 43
48 42
PGAL PGAR SUB TRACTION
LIN2 53 LIN1 56 RIN2 52 RIN1 55 SWITCH Q106, Q206 SWITCH Q335, 336
+2.5V REGULATOR SWITCH Q338
IC304
B+ SWITCH Q305, 306 SWITCH Q322 SWITCH Q312
(LINE IN JACK) VR B+
MIC AMP
J303 MIC (PLUG IN POWER)
IC302
EQ
S301 AUDIO INTERFACE CONTROLLER MIC SENS
H L
SWITCH Q103, 203
SWITCH Q328
+2.5V REGULATOR
IC309
SWITCH Q337
SWITCH & LCD MODULE UNIT (1/2)
DADT, XBCK, LRCK, FS256
C
DADT XBCK LRCK
6 3 2
STDI BCLK LRCK
SWITCH Q104, Q204 DPGA SWITCH Q314, 333 SWITCH Q105, 205
L MIC
MIC AMP
MIC1 MIC MIC2 MIC
IC308
EQ SWITCH Q107, 207
R MIC
Q334
FS256
1
MCLK
CLOCK DIVIDER
BUFFER
IC310
+30dB AMP VOR
VOR SWITCH Q330-332
SP AMP 13 IN1
IC313
SP A SP B SP1 SPEAKER
F D
SRDT, SWDT, SCLK
CDTI SWDT 18 CCLK SCLK 16 CDTO SRDT 17 61 XRST
IC311
CONTROL REGISTER INTERFACE
IC306
Q311
SP VCC S805 REC MODE SWITCH Q304, 305
PWR OUT1 11 PWR 6 IN2 OUT2 8 MUTE 14 OUT1 BASE 15 OUT 1 STNBY 16 SWITCH Q316
RESET
STEREO MONO SWITCH Q310 VC B+ LINE/HP AMP LINE/HP OUT ON/OFF SWITCH Q101, 201 MUTING Q102, 202 J304 i/REMOTE
DO EEPROM
4 3 2 1
SRDT SWDT DBB D/A CONVERTER
LOUT1 ROUT1
33 32
34 31
OPGAL OPGAR LOW-PASS FILTER
LOUT2 ROUT2
37 36
XCS
IC802
DI SK XCS
VOLUME RV301
VOICE UP
+ +
VC B+ BEEP TONE BUFFER Q301, 303 RVCC DTCK KEY-R RGND
SCLK
IC307,
Q313, 318 MUTING Q326, 327 Q321 MUTING CONTROL SWITCH Q325
IC303
PD 62 SWITCH Q319
15
REAL TIME CLOCK
SWITCH Q320
MUTING CONTROL SWITCH Q308
LINE/HP OUT ON/OFF CONTROL SWITCH Q307, 309
IC804
X802 32.768kHz 9 OSCIN SCK2 SDO SDI 3 4 2 SRDT SWDT SCLK 110 111 41 71 42 34 37 72 42 118
XCS ADA
XPD ADA
VOR OUT VOR
SP AMP
MUTE
119 XCS NV 8 OSCOUT CS-RTC VDD 2 D804 D801 X801 16.9344MHz BATT B+ 7 10 CS RTC
SYSTEM CONTROLLER
IC801 (2/3)
EXTAL XTAL
BEEP XHP STBY XOPT CONT OPT DET XJACK DET XMIC DET XHP DET
18 23 117 113 114 115 116
MIC AMP
VOICE UP
MONO
H
RMC KEY
RMC DTCK 19
46
45
DC/DC CONVERTER
02
BACK-UP BATT B+
IC803
Q809
· SIGNAL PATH : PLAY : REC (ANALOG IN) : REC (DIGITAL IN)
31
32
MZ-B50
6-4. BLOCK DIAGRAM MAIN Section (3/3)
MAIN BOARD (3/3)
G H
OE VC B+ RF AMP (IC501), DSP (IC502), MOTOR/COIL DRIVE (IC601), OVER WRITE HEAD DRIVE (IC603), SYSTEM CONTROLLER (IC801), REMOTE CONTROL CIRCUIT B+ POWER CONTROL
IC901
30 VC SWITCHING REGULATOR VCIN 31 29 VCON SWITCHING REGULATOR L1 28
OVER WRITE HEAD DRIVE CIRCUIT B+ D905 L904
RMC KEY
SYSTEM CONTROLLER
IC801
(3/3) S807 SYNCHRO REC ON 1 OFF OFF 73 XHOLD SW HOLD RMC KEY FFCLR SLEEP REG CTL PWM 85 39 40 64 33 37 36 43 34 35 32 VLD B+ LASER APC CIRCUIT B+ S802 (HALF LOCK) BP801 (TEST) 60 XTEST VC PWM 66 NOISE FILTER VRM PWM 65 NOISE FILTER 22 LCD RST 21 LCD STB 20 XCS LCD SERON 58 XRST 43 69 REC LED VB MON 80 VORLED VOR TRCK MARK T. MARK 56 T. MARK VR B+ PAUSE PAUSE 70 VOR LED 15 SERON 40 XRST 22 24 20 23 VREG B+ DSP (IC502) B+ (FOR INTERNAL LOGIC) INM1 RF1 RF2 INM2 RF2 VBAKN 78 38 SYNC REC VREF MON 82 RF1 STEP-UP PRE DRIVER & PWM
PWMVC
16
SWITCHING REGULATOR Q904
S804 HOLD .
VSTB
VB VC
S814 MEGA BASS
48 MEGA BASS
SWITCH UNIT
S806 (PROTECT DETECT) S801 (OPEN/CLOSE DETECT)
WK DET 83 HALF LOCK SW 84 3 PROTECT
XWK3 FFCLR SLEEP CLK XWK2 XWK1 XWK4
XRST SYSTEM CONTROL
VG B+ MOTOR/COIL DRIVE (IC601) B+ VG SWVG 19 17
D901
L902
STEP-UP DC/DC CONVERTER
BATT B+ MOTOR/COIL DRIVE (IC601), OVER WRITE HEAD UP/DOWN MOTOR DRIVE (IC602) B+ VR B+ D906 L905
11 10
VLD VREG REGULATOR VR 12 25 VROUT SWITCHING REGULATOR STEP-UP PRE DRIVER & PWM L2 26
50 OPEN CLOSW SW
VB 44 SWITCH & LCD MODULE UNIT (2/2) SDO SCK LCD LCD DRIVER RST STB CS SWDT SCLK
E
D907
+2.5V REGULATOR
+2.5V REGULATOR
IC904,
RESET SIGNAL GENEARTOR Q902, 906
IC905,
Q901, 905
I
REC LED REC
MAIN BOARD (1/3)
SP VCC S811 VOR SET KEY 3 81 S813 ERASE
4
PAUSE KEY
VRM MON 89
REC
REC
88 REC KEY HiDC MON 90
BATT BOARD
DRY BATTERY SIZE "AA" (IEC DESIGNATION LR6) 2PCS, 3V S808 CLOCK SET
SET KEY 1 SET KEY 2 PL CTL
CLOCK SET 120 86 SET KEY 1 87 SET KEY 2 59 PLUNGER
+2.5V REGULATOR
XWK1
IC906
Q907 BACK UP BATT B+
LINE FILTER LF901
J1001 DC IN 3V
!
BAT1 LITHIUM BATTERY (FOR BACK UP) 02
B UP BATT
PL +
DC JACK BOARD
33
34
MZ-B50
6-5. PRINTED WIRING BOARDS MAIN Section (1/2)
1 2 3 4
z
Refer to page 49 for Notes.
5 6 7 8 9 10 11
z
Semiconductor Location
Ref. No. D301 D302 D303 D501 D602 D603 D901 D905 D906 IC301 IC302 IC303 IC304 IC305 IC307 IC308 IC309 IC310 IC311 IC501 IC502 IC504 IC505 IC601 IC602 IC603 IC604 IC605 IC801 IC802 IC803 IC804 IC9