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PORTABLE MINIDISC RECORDER -
Service Manual
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MZ-R70
SERVICE MANUAL
Ver 1.3 2001. 01 With SUPPLEMENT-1 (9-927-631-81)
US Model Canadian Model AEP Model UK Model E Model Australian Model Chinese Model Tourist Model
(Photo: Silver)
US and foreign patents licensed from Dolby Laboratories Licensing Corporation.
Model Name Using Similar Mechanism Mechanism Type Optical Pick-up Name
MZ-R90/R91 MT-MZR70-165 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 Frequency response 20 to 20,000 Hz ± 3 dB Wow and Flutter Below measurable limit Inputs Microphone: stereo mini-jack, 0.351.38 mV Line in: stereo mini-jack, 69194 mV Optical (Digital) in: optical (digital) minijack Outputs i1: stereo mini-jack, maximum output level 5 mW + 5 mW, load impedance 16 ohm i2: stereo mini-jack, maximum output level 5 mW + 5 mW, load impedance 16 ohm General Power requirements Sony AC Power Adaptor (supplied) connected at the DC IN 3 V jack: 120 V AC, 60 Hz (US model) 230-240 V AC, 50/60 Hz (UK and Hong Kong model) 240 V AC, 50/60 Hz (Australia and New Zealand model) 220-230 V AC, 50/60 Hz (European model) 220 V AC, 50 Hz (China model) 220 V AC, 50 Hz (Argentina model) 100-240 V AC, 50/60 Hz (Other models) Nickel cadmium rechargeable battery NC-WMAA (supplied) LR6 (size AA) alkaline battery (not supplied) Battery operation time Battery life1) Batteries Recording2) Playback NC-WMAA Approx. Approx. nickel cadmium 3 hours 6.5 hours rechargeable battery LR6 (size AA) Approx. Approx. Sony alkaline 3 hours3) 17 hours dry battery
1)
2)
3)
The battery life may be shorter due to operating conditions and the temperature of the location. When you record, use a fully charged rechargeable battery. Recording time may differ according to the alkaline batteries.
Continued on next page
PORTABLE MINIDISC RECORDER
1
Dimensions Approx. 81 × 74 × 26.2 mm (w/h/d) (3 1/ 4 × 3 × 1 1/ 16 in.) without projections. Mass Approx. 115 g (4 oz) the recorder only Approx. 155 g (5.4 oz) incl. a recordable MD, and NC-WMAA nickel cadmium rechargeable battery Supplied accessories AC power adaptor (1) Headphones with a remote control (1) Optical cable (1) NC-WMAA nickel cadmium rechargeable battery (1) Rechargeable battery carrying case (1) Carrying pouch (1) 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. This MiniDisc player is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT label is located on the bottom exterior. IN NO EVENT SHALL SELLER BE LIABLE FOR ANY DIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY NATURE, OR LOSSES OR EXPENSES RESULTING FROM ANY DEFECTIVE PRODUCT OR THE USE OF ANY PRODUCT. "MD WALKMAN" is a trademark of Sony Corporation.
SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT À LA SÉCURITÉ!! LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
2
TABLE OF CONTENTS 1. SERVICING NOTE ......................................................... 4 2. GENERAL ......................................................................... 5
Looking at the Controls ........................................................ 5 Recording an MD Right Away! ............................................ 6 Playing an MD Right Away! ................................................. 7
5. ELECTRICAL ADJUSTMENTS .............................. 20
5-1. Outline ................................................................................. 20 5-2. Precautions for Adjustment ................................................. 20 5-3. Adjustment Sequence .......................................................... 20 5-4. NV Reset ............................................................................. 20 5-5. Power Supply Manual Adjustment ...................................... 20 5-6. Temperature Correction ....................................................... 22 5-7. Overall Adjustment Mode ................................................... 22 5-8. Laser Power Check ............................................................. 23
3. DISASSEMBLY ............................................................... 8
3-1. Block Assy, Bottom .............................................................. 8 3-2. Panel Block Assy, Upper ....................................................... 8 3-3. LCD Module ......................................................................... 9 3-4. Main Board ........................................................................... 9 3-5. MD Mechanism Deck ......................................................... 10 3-6. Service Assy, OP ................................................................. 10 3-7. Holder Assy ......................................................................... 11 3-8. Motor Flexible Board .......................................................... 11 3-9. Motor, DC (M602) .............................................................. 12 3-10. "Motor, DC (M601)", "Motor, DC (M603)" .................... 12
6. DIAGRAMS ..................................................................... 25
6-1. Block Diagram MD Section .......................................... 25 6-2. Block Diagram Audio Section ...................................... 27 6-3. Block Diagram Power Supply Section .......................... 29 6-4. Printed Wiring Board Main Board ................................ 31 6-5. Schematic Diagram Main Board (1/3) .......................... 35 6-6. Schematic Diagram Main Board (2/3) .......................... 37 6-7. Schematic Diagram Main Board (3/3) .......................... 39 6-8. IC Block Diagrams .............................................................. 41 6-9. IC Pin Descriptions ............................................................. 44
4. TEST MODE ................................................................... 13
4-1. Outline ................................................................................. 13 4-2. Test Mode ............................................................................ 13 4-3. Manual Mode ...................................................................... 14 4-4. Overall Adjustment Mode ................................................... 15 4-5. Sound Skip Check Result Display Mode ............................ 16 4-6. Self-diagnosis Display Mode .............................................. 17 4-7. Key Check Mode ................................................................. 19
7. EXPLODED VIEWS ..................................................... 51
7-1. Cabinet Section ................................................................... 51 7-2. Mechanism Deck Section ................................................... 52
8. ELECTRICAL PARTS LIST ...................................... 53
3
SECTION 1 SERVICING NOTE
· 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) with tape. NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic break-down and also use the procedure in the printed matter which is included in the repair parts. The flexible board is easily damaged and should be handled with care. NOTES ON LASER DIODE EMISSION CHECK Never look into the laser diode emission from right avove when checking it for adustment. 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.
Tape MAIN board S801
· 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 page 20.)
laser-tap
· Replacement of CXD2660R (IC502) and CXR701081 (IC801) used in this set requires a special tool. Therefore, they cannot be replaced.
OPTICAL PICK-UP FLEXIBLE BOARD
4
SECTION 2 GENERAL
This section is extracted from instruction manual.
5
6
7
SECTION 3 DISASSEMBLY
Note : This set can be disassemble according to the following sequence. Set Block Assy, Bottom Panel Block Assy, Upper Main Board LCD Module Service Assy, OP Motor Flexible Board Motor, DC (M602) "Motor, DC (M601)", "Motor, DC (M603)" Note : Follow the disassembly procedure in the numerical order given. Holder Assy MD Mechanism Deck
3-1. BLOCK ASSY, BOTTOM
Note : When installing, fit the knobs (HOLD, SYNCHRO REC) and switches (S804, S807)
S804 S807
knob (HOLD) knob (SYNCHRO REC) 3 screws (1.4) 6 block assy, bottom 2 hinge
4 screws (1.4) 1 lid, battery case
5 block assy, bottom Note:When installing the bottom block assy, install the assy with the battery case lid open. After it is installed, close the battery case lid.
lid, battery case
3-2. PANEL BLOCK ASSY, UPPER
6 panel block assy, upper 4 screws (1.4) 1 CN801
5 screws (1.4)
3
2
8
3-3. LCD MODULE
1 screws (1.7) 3 LCD module
2
claws
3-4. MAIN BOARD
4 screw (1.4) 0 claws 6 screws (1.7) 7 stay qs
8 screw (1.7) 1 CN601
5 screw (1.4) qf MAIN board
9 claws 2 CN602 qd CN501
3 Remove the solder. qa boss
9
3-5. MD MECHANISM DECK (MT-MZR70-165)
3 boss 5 MD mechanism deck (MT-MZR70-165)
4 boss
chassis assy
2 screw (1.4) 1 screw (1.4)
3-6. SERVICE ASSY, OP
3 precision pan screw (M1.4) 4 rack spring
1 washer (0.8 - 2.5) 2 gear (SA) 8 Pull off the lead screw. 6 screw
5 screw
9 bearing
7
B
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
10
3-7. HOLDER ASSY
5 Remove the holder assy to direction of the arrow C.
B 1 Open the holder assy. A 3 2 Push the convex portion toward the direction B and open the holder assy toward the direction A to erect uprightly.
C
4 boss
3-8. MOTOR FLEXIBLE BOARD
1 Remove four solders of DC motor (sled) (M602). 2 Remove two solders of DC motor (over write head up/down) (M603).
4 adhesive sheet Note: Align a circular hole in the stripping paper with a circular hole in the DC motor (sled), when mounting the motor flexible board.
3 Remove four solders of DC motor (spindle) (M601).
5 motor flexible board
DC motor (sled) circular hole
11
3-9. MOTOR, DC (M602)
1 Remove four solders of motor flexible board. 2 washer (0.8 - 2.5)
4 two precision pan screws (M1.4)
3 gear (SA) 5 DC motor (sled) (M602)
3-10. "MOTOR, DC (M601)", "MOTOR, DC (M603)"
1 Remove six solders of motor flexible board.
qs DC motor (over write head up/down) (M603)
Note: Press-fit the gear (HA) up to the position of the DC motor (over write head up/down) (M603) as shown below. gear (HA)
6 two precision pan screws (M1.4) 4 three precision pan screws (M1.4) qa gear chassis assy 0 screw (M1.2 × 1.5)
2.65 mm gear chassis assy DC motor (over write head up/down) (M603)
9 gear (HA) 8 gear (HB) 7 washer (0.8 - 2.5) 2 washer (0.8 - 2.5)
3 gear (HC)
5 DC motor (spindle) (M601)
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SECTION 4 TEST MODE
4-1. 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 x key on the set, press the following remote control keys in the following order:
> t > t . t . t > t . t > t . t X t X
4-2. TEST MODE
4-2-1. 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.
MAIN
4-2-2. 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
F1SHUF REC
All lit
888 xxxxxxxxx
BOARD (SIDE B) All off
Microprocessor version 001 display
V0.000
· When the X key is pressed and hold down, the display at that time is held so that display can be checked. 4-2-3. 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.
Note: Remove the solders completely. Remaining could be shorted with the chassis, etc.
IC502 88 89 90 25 85 86 87 26 82 83 84 28 78 80 81 76 77 79 32 73 74 75 36 147144 37 46 47 50 53 56 59 64 68146 72 145 38 40 42 45 48 51 55 57 60 63 66 67 70 39 41 43 44 49 52 54 58 61 62 65 69 71 FB501 FB502 FB503 L502 FB504 C529 AP521 OFF ON AP508 AP504 AP505 S804 HOLD
For test mode set with the method 2: Turn off the power.
Note: If electrical adjustment (see page 20) has not been finished completely, always start in the test mode. (The set cannot start in normal mode.)
C537
R530 R529
R506
R503
R508
R509
AP804 AP803
09 AP507 AP1001 BP801 AP506 AP511 12 AP519 AP516 88 87 86 83 81 78 74 72 69 64 63 60 58 10 90 89 85 84 80 77 75 71 68 65 62 59 57 805 93 92 91 82 79 76 73 70 67 66 61 55 56 AP830 AP834 96 95 94 52 53 54 X801 AP517 AP907 99 98 97 49 50 51 AP807 IC801 46 47 48 102101 100 AP911 C801 43 45 44 105104 103 AP806 40 41 42 108104 106
109110 111 113114 112 117116 115 4 7 10 13 16 19 22 119118 2 6 8 11 14 17 21 23 120 1 3 5 9 12 15 18 20 24 37 34 27 26 25 36 35 32 28 29 39 36 33 31 30
R510
C530
5 IC802 R935 8 AP5209
4 1
32
BP801
13
4-2-4. Configuration of Test Mode
[VOL +] key:100th place of mode number [Major item switching]
N key x key
[Test Mode $Display Check Mode%] Press the > *1) or [VOL +] *3) key [Manual Mode]
Press the x *3) key
increase.
[VOL --] key:100th place of mode number
decrease.
[Servo Mode] [Audio Mode] [Power Mode] [OP Alignment Mode] [Overall Adjustment Mode]
[VOL +] key:10th place of mode number increase. [Medium item switching] [VOL --] key:10th place of mode number
N key x key
decrease.
Press the . *3) or [VOL --] *3) key Press the x *3) key Press the N *1) or [REC] *1) or N > *2) key Press the
x *3)
[Minor item switching]
N key: Unit place of mode number
increase.
[Adjusted value variation] [VOL +] key:Increases the
adjusted value
key
[Sound Skip Check Result Display Mode]
press the [DISPLAY] *2) or MENU . *1) key
[VOL --] key:Decreases the
adjusted value
[Self-Diagnosis Display Mode]
Press the x *3) key Press the [T MARK] or [DISPLAY] key on the remote commander for several seconds.
[Adjusted value write]
X key: When adjusted value is
*3)
*2)
[Key Check Mode]
Quit the key check or open the upper panel
Note: *1) on the set *2) on the remote commander *3) on the set or remote commander
changed: Adjusted value is written. When adjusted value is not changed: That item is adjusted automatically.
4-3. 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 13) 2. Press the > or [VOL +] key activates the manual mode where the LCD display as shown below.
LCD display
000
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.
14
5. The display changes a shown below each time the jog key on the set is turned up or [DISPLAY] key on the remote commander is pressed.
4-4. 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
011
C68S01
adjusted value
N key protect switch ON
address mode number
CD overall adjusting
· Jitter Value & Adjusted Value Display
LCD display
All item OK
NG item exists or x key
CD overall adjustment NG
011
0FFJ01
adjusted value
x key
jitter value mode number
x key
· Block Error Value & Adjusted Value Display
LCD display
CD overall adjustment OK > key
protect switch OFF
adjusted value MO overall adjusting
011
063B01
block error value mode number
· ADIP Error Value & Adjusted Value Display
LCD display
NG item exists or x key
MO overall adjustment NG MO overall adjustment OK
011
059A01
adjusted value
x key
ADIP error value mode number
x key
· Item Title Display
LCD display
[Test mode $display check mode%]
For further information, refer to the Section 5 Electrical Adjustment. (See page 20)
011
LrefPw 01
adjusted value
item title mode number
However in the power mode (mode number 700's), only the power adjustment value is displayed. · Power Supply Adjusted Value
LCD display
731
AD
85
adjusted value
fixed display mode number
6. Quit the manual mode, and press x key to return to the test mode (display check mode).
15
4-5. 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 13) 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. When N or [REC] key on the set is pressed:
LCD display
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.
000
P**R** BOvr** Bful** Rtry** ######
000
000
000
P**R**
000
Total of record system error count Total of play system error count
000
3. When N key or N > key on the remote commander 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 EIB Playback Stat Adrs BEmp BOvr Recording Bful Rtry 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
000
P**R** EIB ** Stat** Adrs** BEmp** ######
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).
000
** : Sound skip check items counter (hexadecimal) ###### : 6-digit address (hexadecimal) where a sound skipped last
16
4-6. 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 13) 2. Press the MENU . key on the set or press the [DISPLAY] key on the remote commander activates the self-diagnosis display mode where the LCD display as shown below.
LCD display
000
1st0**
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).
17
· 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 "0000h" when recorder goes beyond this limit. Description
· Description of Error Indication Codes Problem No error Indication code 00 01 Servo error 02 03 04 Power error 22 Meaning of code No error Illegal access target address was specified High temperture Focus error Spindle error Low battery Attempt to access an abnormal address High temperture Forcus could not be applied Abnormal lotation of disc Momentary interruption detected Description
4-6-1. Clearing Self-Diagnosis Data and Total Recording Time 1. Setting the test mode. (See page 13.) 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, " RecT O" is displayed and it is cleared.
18
4-7. 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 13) 2. Press the [T MARK] or [DISPLAY] key on the remote commander for several seconds 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 VOL + VOL x REC END SEARCH MENU . MENU > ENTER T MARK HOLD (hold) HOLD (off) SYNCHRO REC (on) SYNCHRO REC (off) Indication PLAY FF FR PAUSE VOL + VOL STOP REC END S JOG+ JOG PUSH T MARK HLDon HLDoff SYCon SYCoff
Remote commander key
Key N/> . X VOL + VOL x PLAYMODE DISPLAY HOLD (hold) HOLD (off) Indication rPLAY rFR rPAUSE rVOL + rVOL rSTOP rPMODE rDISP
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.
19
Ver 1.3 2001. 01
SECTION 5 ELECTRICAL ADJUSTMENTS
5-4. NV RESET
· Setting method of NV reset 1. Select the manual mode of test mode, and set mode number 021NV Reset.
LCD display
5-1. OUTLINE
· In this set, automatic adjustment of CD and MO can be performed by entering the test mode. (See page 13) 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.
021
ResNV
2. Press the X key.
LCD display
5-2. PRECAUTIONS FOR ADJUSTMENT
1. Adjustment must be done in the test mode only. After adjusting, release the test mode. 2. Use the following tools and measuring instruments. · Test CD disc TDYS-1 (Part No. : 4-963-646-01) · SONY MO disc available on the market · 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 021
ResOK?
3. Press the X key once more.
LCD display
021
Res***
r NV reset (after several seconds)
021
Reset!
5-3. 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
4. Quit the manual mode, and activate the test mode.
5-5. 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)
20
· 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 14)
LCD display
· 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 14)
LCD display
762
VclPWM
765
VchPWM
2. Connect a digital voltmeter to the TP915 (VC) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 2.5 ± 0.02 V. Proceed to the next step, if voltage is already adjusted.
digital voltmeter MAIN board TP915 (VC) TP5105 (GND)
2. Connect a digital voltmeter to the TP915 (VC) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 2.5 ± 0.02 V. Proceed to the next step, if voltage is already adjusted.
digital voltmeter MAIN board TP915 (VC) TP5105 (GND)
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 14)
LCD display
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 14)
LCD display
763
VrhVcl
766
VrhVch
2. Connect a digital voltmeter to the TP914 (VR) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 2.75 ± 0.02 V. Proceed to the next step, if voltage is already adjusted.
digital voltmeter MAIN board TP914 (VC) TP5105 (GND)
2. Connect a digital voltmeter to the TP914 (VR) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 2.75 ± 0.02 V. Proceed to the next step, if voltage is already adjusted.
digital voltmeter MAIN board TP914 (VC) TP5105 (GND)
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 14)
LCD display
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 14)
LCD display
764
VrlVcl
767
VrlVch
2. Connect a digital voltmeter to the TP914 (VR) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 2.5 ± 0.02 V. Proceed to the next step, if voltage is already adjusted.
digital voltmeter MAIN board TP914 (VC) TP5105 (GND)
2. Connect a digital voltmeter to the TP914 (VR) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 2.5 ± 0.02 V. Proceed to the next step, if voltage is already adjusted.
digital voltmeter MAIN board TP914 (VC) TP5105 (GND)
3. Press the X key to write the adjusted value.
3. Press the X key to write the adjusted value.
21
5-6. TEMPERATURE CORRECTION
· Adjustment Method of temperature correction 1. Select the manual mode of test mode, and set the mode number 014. (See page 14)
LCD display
6. If the result of automatic adjustment is NG, the following display appears in the LCD:
LCD display
### NG
# # # : Overall adjustment. NG mode number
014
SetTmp
2. Measure the ambient temperature. 3. Adjust with [VOL +], [VOL --] 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.
7. If NG, set the manual mode. Perform automatic adjustment for the items not accepted. (See page 14) · Overall CD adjustment items
Item No. 312 313 314 328 321 323 332 336 344 345 521 522 341 Contents CD electrical offset adjustment CD TWPP gain adjustment CD TE gain adjustment CD TE offset adjustment CD ABCD level adjustment CD focus gain adjustment CD tracking gain adjustment CD two-axis sensitivity adjustment CD focus bias adjustment
5-7. OVERALL ADJUSTMENT MODE
· Adjustment Method of Overall Adjustment Mode 1. Setting the test mode. (See page 13) 2. Press the . or [VOL --] key activates the overall adjustment mode where the LCD display as shown below.
LCD display
000
Assy**
: (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.
** CD auto adjustment information F : CD auto adjustment finished 1 : Manual adjustment remains (not auto adjustment) 0 : Not adjusted yet MO auto adjustment information F : Auto adjustment finished 1 : Manual adjustment remains 0 : Not adjusted yet
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
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
10. If the result of automatic adjustment is OK, the following display appears in the LCD:
LCD display
141
MO OK
%%%
CD RUN
%%%: Manual mode number being executed
11. If the result of automatic adjustment is NG, the following display appears in the LCD:
LCD display
5. If the result of automatic adjustment is OK, the following display appears in the LCD:
LCD display
### NG
# # # : Overall adjustment. NG mode number
341
CD OK
12. If NG, set the manual mode. Perform automatic adjustment for the items not accepted. (See page 14)
22
· Overall MO adjustment items
Item 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 Low reflective CD TE gain adjustment Low reflective CD TE offset adjustment Contents
5-8. LASER POWER CHECK
Connection :
laser power meter
MO electrical offset adjustment
Optical pick-up objective lens
digital voltmeter
Low reflective CD ABCD level adjustment Low reflective CD focus gain adjustment Low reflective CD tracking gain adjustment MO TE gain adjustment MO TE offset adjustment MO TWPP gain adjustment MO x2 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 MO write ABCD level adjustment MO write tracking gain adjustment MO x1 speed read TWPP offset adjustment 32 cluster full recording MO focus bias adjustment
MAIN board Between TP1001 and TP1002
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 14) 14. When both CD and MO overall adjustments are OK, set the manual mode and clear the clock data. For the microprocessor version 1.20 or later, set the mode number 043 (Resume).
Note: In the mode number 043 (Resume), "Res***" display cannot be seen because of too fast processing.
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 between TP1001 and TP1002 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 between TP1001 and TP1002 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 between TP1001 and TP1002 at this time is below 80 mV. 13. Press the x key. 14. Release the test mode.
If microprocessor version 1.20 or later
LCD display
043
Resume
r Press the X key, historical data clear
043
ResClr
Note: In step 10, set the clock data to 99Y11M11D11H11M00S, and in step 14, do not set the clock.
23
Connecting Location:
MAIN BOARD (SIDE A)
TP5105 TP914 TP915
MAIN BOARD (SIDE B)
TP1001
TP1002
R1005
24
SECTION 6 DIAGRAMS
6-1. BLOCK DIAGRAM -- MD SECTION --
MZ-R70
OPTICAL PICK-UP BLOCK (LCX-2R) IX 9 IY 8 JX 10 JY 11 C 5 B 14 A 12 D 6
RF AMP, FOCUS/TRACKING ERROR AMP IC501
RF AMP PEAK/ BOTM ABCD AMP FOCUS ERROR TRACKING ERROR
JX JY
XRST 25 RF 33 PEAK 29 BOTM 28 ABCD FE TE ADFG 41 42 1 21
DIGITAL SERVO SIGNAL PROCESSOR EFM/ACIRC DECODER SHOCK PROOF MEMORY CONTROLLER ATRAC DECODER IC502 (1/2) 78 RFI 84 PEAK 85 BOTM 86 ABCD RESET 87 FE 96 TE 99 ADFG 4 MNT2 LPF SW Q501 20 OSCO X501 22.5MHz XRST WRPWR MNT1 MNT3 DQSY SQSY XINT SENS XLAT TX XCS DSP 12 15 3 5 14 13 16 11 8 17 32 SYSTEM CONTROLLER IC801(1/3) 68 7 51 52 54 53 55 6 8 5 9 XIC RST WRPWR XSHOCK FOK DQSY SQSY XINT SENS XLAT TX XCS DSP DADT 42 XBCK 45 LRCK 43 FS256 46 DADT XBCK LRCK FS256
A
TO REC/AMP SECTION (Page 27)
C B D A
I-V CONV.
IX IY AUTO POWER CONTROL Q1001
LD
20
PD-O
ADIP APC
PDI
PD
18
SBUS SCK
PD-IN
OFTRK 26 S-MON 43 WPPLPF 3
23 24 PD SO PD SI 4 CH MOTOR DRIVE IC601 TRACKING COIL DRIVE FOCUS COIL DRIVE DATA CLK
19
19 OSCI 106 APC REF
TRACKING COIL FOCUS COIL
30 32 7 5
21 22 16 15
110 TFDR 109 TRDR 111 FFDR 112 FRDR
SLCU 138
SLCV 139
11 9 M602 (SLED) 26 28 SLED MONITOR IC604 M601 (SPINDLE) U W V 46 44 42
FOCUS COIL DRIVE
PWM24
14 13 25 23 24 3 2 5 2 5 3 7 SPDL PWM CLVU CLVV CLVW SWITCH IC504, 505 1 6 1 6
133 134 141 135 140
SLDU SLDV SLDS SLDW SLCW
67 24 25 26
SPDL PWM CLV U CLV V CLV W
PWM1
102 SSB DATA 103 SSB CLK 124 127 128 129 SPVS SPDU SPDV SPDW
SPINDLE MOTOR DRIVE SPINDLE MONITOR OE
2 1 48
SPCU 130 SPCV 131 SPCW 132
36 PD SO 38 PD SI
34 35 36 SPCW SPCV SPCU SLCU SLCV
17
35 2 79 57 49
SLD MONI OFTRK S MON REC WBL SW SPDL START SW
· Signal path : PB
04
B
TO POWER SECTION (Page 29)
OE
25
26
MZ-R70
6-2. BLOCK DIAGRAM -- AUDIO SECTION --
OPT CONTROL Q302 J301 LINE IN (OPTICAL)
REC DRIVE IC603 HR601 OVER WRITE HEAD OVER WRITE HEAD DRIVE Q601, 602 M603 OVER WRITE HEAD UP/DOWN MOTOR 31 33 EFM LOGIC EFM
DIGITAL SIGNAL PROCESSOR EFM/ACIRC ENCODER ATRAC ENCODER 16M BIT DRAM IC502 (2/2) DIN1 33 35 123 EFMO 113 FS4 ADDT 41 4 STDO
A/D, D/A CONVERTER IC301 LIN 2 41 LIN 1 44 RIN 2 40 RIN 1 43 LOUT 2 29 ROUT 2 28
MIC AMP IC302
R-CH 9 STBY R-CH J303 MIC IN (PLUG IN POWER)
A/D CONV.
14
12
5 7
MOTOR DRIVE
CLK 34 F1 3 R1 2
A
(Page 26) TO PB SECTION
5 3 2 1 46 STDI D/A CONV.
R-CH
HEADPHONE AMP IC303 R-CH 22 2 J302
DADT XBCK LRCK FS256 RESET SWDT 6 SCLK 7 SRDT 10
R-CH 24 23
i
R-CH R-CH
2
19 DW TP 18 DW BT SWITCHING REGULATOR Q603
OE 24 REC 23 B+SW 22
BCLK LRCK MCLK XRST XCS 12 PD 47
15 17 STB 18 MUTE
BEEP
BATT +B
REC +B
15 CDTI 13 CCLK 14 CDTO
D C
POWER/LCD SECTION (Page 29) TO POWER/LCD SECTION (Page 29)
KEY-R
VC +B
RVCC KEY-R DTCK
J304
i
1
SWDT SCLK EEPROM IC802 DI SCLK DO XCS 3 2 4 1 12 13 11 119
SYSTEM CONTROLLER IC801 (2/3) SO0 SCK0 SI0 XCS NV XPD ADA 111 XCS ADA 110 BEEP 18 XHP STBY 23 MUTE 117 XOPT CONT XJACK DET OPT DET XMIC DET RMC DTCK 116 114 113 115 19
30 HD CON1 31 HD CON2 27 MODE 1 28 MODE 2 29 MODE 3
· Signal path : REC : PB
04
27
28
MZ-R70
6-3. BLOCK DIAGRAM -- POWER SUPPLY SECTION --
(Page 25)
B
TO PB SECTION
OE
· Waveforms
1
50mV/div, lµs/div (PB) Approx. 1.4Vp-p
D
TO REC/AMP SECTION (Page 28)
RMC KEY SW & LCD MODULE UNIT XWKI VC +B SYSTEM CONTROLLER IC801 (3/3) REC KEY WK DET RMC KEY FF CLR 4 PAUSE KEY SLEEP REG CTL PWM CLK 86 SET KEY1 VBAKN 87 SET KEY2 HALF LOCK SW 22 LCD RST 21 LCD STB 20 XCS LCD 88 83 85 39 40 64 37 78 84 S802 OPEN VC PWM VPM PWM SERON XRST 66 65 58 43 24 23 15 40 VLD +B 11 RF1 RF2 SERON XRST 34 35 33 37 36 43 XWK2 XWK1 XWK3 FLCLR SLEEP CLK POWER CONTROL IC901 POWER CONT
IC501 rs (FE), IC502 ij (FE)
2
31
0.5V/div, 0.2µs/div (PB) Approx. 1.4Vp-p
REC
30
IC501 ed (RF), IC502 uk (RFI)
3
DC/DC CONV 28
400mV/div, 20ns/div 1.9Vp-p 44.3ns
PAUSE
KEY IN MATRIX
C
TO REC/AMP SECTION (Page 28)
SWDT SCLK LCD DRIVER
38 VSTB 32 XWK4
IC502 w; (OSCO)
DC/DC CONV SWVG 17 VG +B DC/DC CONV L2 26
LCD
XTAL 45 EXTAL 46
X801 16.934MHz
POWER CONT POWER CONT RF3
VR
12
VR +B BATT +B
S807 SYNCHRO REC
ON 1 SYNC REC OFF OFF 73 XHOLD SW HOLD 56 T MARK VRM MON 89 VB MON 80 CHG MON 81
VREG +B BATT +B VR +B
10 8
VB BATM
44 5 IC902 POWER CONT Q901 (2/2) RECHARGEABLE BATTERY J901 2 Q901(1/2) DC IN 3V
S804 HOLD S803 T MARK S806 PROTECT DETECT S801 OPEN/CLOSE DETECT BP801 (TEST) 04
DC IN 1 RF5 CHG B 4
1
2.5V REG 5
3 PROTECT
XCHG 59
47
CHG SW RS
48 2
50 OPEN/CLOSE SW HI DC MON 90 GND SW 42 GROUND LINE SWITCHING Q902
60 X TEST
29
30
MZ-R70
6-4. PRINTED WIRING BOARD -- MAIN BOARD --
1
Common 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. · C : panel designation. Note: The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. Note: Les composants identifiés par une marque 0 sont critiques pour la sécurité. Ne les remplacer que par une piéce portant le numéro spécifié.
2
3
4
5
6
7
8
9
10
11
A
MAIN BOARD (SIDE A)
S801 (OPEN/CLOSE) S802 (OPEN)
B
C616
· A : B+ Line. · Power voltage is dc 3V and fed with regulated dc power supply from external power voltage jack. · Voltages and waveforms are dc with respect to ground in playback mode. no mark : REC ( ) : PB : 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. J : CD
C
IC504 TP904 8 1 5 4 C510
IC505 8 1 5 4
FB505
FB601 C638 25 30 35 40 20 15
AP530 C514 10 C640 IC601 5
C624
D
X501
RB603 L604 C623 C625
RB602
TP344 TP315
TP343 C113 TP333 R307
R619
R524 R525 R636
C632
C528
L301
45 481 C617 C631 C618 R520 R638
C304
E
L601
C303
C629
C527
C621
TP331
TP334 TP341 TP342 J301 (1/2) LINE IN (OPTICAL)
R321 TP332 C220 R204 R104 C120
R302
TP335
C534 R526 C536 C535 R522 R528
AP5101 TP5112 AP5102 C525 R325 CN501 1 L501
C222 R201
R101 C202
C308
C925 C524
C334 C102
10 TP5120 TP5118 R811 R834 R835 R808 R815 R814 20 AP5119 R802 R803 R805 R840 R806
C913
OPTICAL PICK-UP
C307 TP348
C103
F
Common note on Printed Wiring Boards: · Y : parts extracted from the conductor side. f · : internal component. · : Pattern from the side which enables seeing. Caution: Pattern face side: (Side B) Parts face side: (Side A)
R202
C122 R102
TP336 C203
TP346 TP337 D101
TP345 TP338
TP5105
D201
C917
L902
L901
R301 TP347 C333 D905 TP903
R322
G
R801
R809
C106 C915 L903 C926 R934 R912 R223 R936 R923 R921 R919 D906 C201 C206 D907 TP905 TP906 TP311 TP312 TP316 C905 TP313 TP314 J304 (1/2) i1 (LINE OUT) R209 R203 R208
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.
C810 TP816 R807 TP9001 TP801 TP828 S803 T.MARK TP601 C605 L606 R637 C612 R611 R614 R612 R639 C600 C602 1 Q603 D600 4 D601 AP808 R838
R812
R813
TP914 TP915
TP317
C934
C921
· Main board is four-layer printed board. However, the patterns of layers 2 and 3 have not been included in this diagrams.
C923
AP909
AP910
R938
H
R942
C935
R930 R927 R907 R908 L904
C930
TH901
C902
* IC502, IC801 is not replaceable
· Lead Layouts surface
D602
R928
TP823 Q905 8 L603
I
C613 C615 04
R613 C614 C601
5
R903
LF901
C929 C910 R937 R924 R913 C918 C933 R929 C932 C922 R931
L905
1-677-124-
11
Lead layout of conventional IC
CSP (chip size package)
31
32
MZ-R70
13
12
11
10
MAIN BOARD (SIDE B)
9
8
7
6
5
4
3
2
1 A
· Semiconductor Location Ref. No. D101 D201 (D301) (D302) (D501) D600 D601 D602 (D901) (D902) (D903) D905 D906 D907 (IC301) (IC302) (IC303) (IC501) (IC502) IC504 IC505 IC601 (IC603) (IC604) (IC801) (IC802) (IC901) (IC902) (Q301) (Q302) (Q501) (Q601) (Q602) Q603 (Q901) (Q902) Q905 (Q906) (Q1001) ( ) : SIDE B Location F-10 F-10 H-10 I-10 H-5 I-4 I-5 I-3 G-7 H-9 H-9 G-8 G-7 G-8 F-8 D-9 F-9 F-6 E-4 D-2 D-3 E-4 I-3 E-7 G-4 H-3 H-7 I-9 G-9 E-9 E-6 I-5 I-5 I-3 H-8 H-9 I-8 I-10 F-7
S806 (PROTECT)
RECHARGEABLE BATTERY NC-WMAA 1.2V 700mAh
B
C937
C938 MD MECHANISM L605 AP5103 AP529 AP532 AP525 AP533 AP535 AP531 R537 R535 CN602 15 C320 C213 C322 1 R536 1 C112 C212 IC604 4 5 8 TP1001 TP1002 2 RB601 1 7 R1004 R1005 C513 R1006 5 35 C335 124 6 C339 19 18 R306 R305 C904 C916 C903 13 12 40 1 45 48 8 R621
3 142139137 133130 126124121 118116 112110 2 141138 135132 129 127123120 117114111 109 5 4 140136 134131 128125122 119115 113108 106107 7 6 1 103 104105 8 10 11 100 102101 9 13 12 97 98 99 96 95 94 14 16 15 17 19 18 92 91 93 IC502 88 89 90 20 21 24 25 85 86 87 22 23 26 82 83 84 78 80 81 29 27 28 76 77 79 30 31 32 73 74 75 33 34 36 143 35 147144 37 46 47 50 53 56 59 64 68146 72 145 38 40 42 45 48 51 55 57 60 63 66 67 70 39 41 43 44 49 52 54 58 61 62 65 69 71
L602
C
AP511AP534
AP523 R527 C519 C630 C533
C332
C118
J303 R319 MIC (PLUG IN POWER) C318 R218 C217 C218 R317 J301 (2/2) LINE IN (OPTICAL) R118
C620 C622 AP524 AP5104
8 IC302 C216 14 C323 C340 C111
7
C116
C117
2 8 RB302 1 7
D
1 C208 C312 C330 C306
C526
C532 AP521
S807 SYNCHRO REC
C619
C321 C211 R211
R517 C502 Q501
R518 R519
E
OFF ON AP508 AP504 AP505 S804 HOLD
C108
S
C506 C505
Q302 C210 30 IC301 C110
10
C521
C537
24 25
20
15 13
R112
R318 C331 J302 i2
FB501
C1004 22
R507
R506
R503
R508
R509
R122
C301 C1003
R222
C1001
IC501 23 C507 44
R1003 R1001
IC303 7
C310
C1002
R123
R109 R108
C338
C336
C324 L302 FB301 C315 C316 C319 FB303 FB304 C311 C317 C224 FB302 C124
Q301 Q901 8 5 25 30 1 4 35 37 40 R901 R902 R906 R940 C906 C920 20
R932 Q902 D902 S
15 10
C806
C101
D901
R842 AP833 AP804 AP803
R103
C936
C515
R1002 C522
C939
IC901
5
D301 D903
J304 (2/2) i1
1 45 48 R916
C509 AP507 AP1001 BP801 AP506 AP511 C512 AP519 AP516 C508 C516 AP501 AP510 88 87 86 83 81 78 74 72 69 64 63 60 58 90 89 85 84 80 77 75 71 68 65 62 59 57 R505 AP805 93 92 91 82 79 76 73 70 67 66 61 55 56 AP830 AP834 C807 96 95 94 52 53 54 X801 AP517 AP509 AP907 99 98 97 49 50 51 C511 AP807 IC801 46 47 48 102101 100 AP911 R905 C801 43 45 44 105104 103 AP806 40 41 42 108104 106 C911 37 36 39 109110 111 AP802 5 4 AP912 113114 112 34 35 36 AP801 IC802 R939 R915 117116 115 4 7 10 13 16 19 22 27 32 33 AP518 119118 2 6 8 11 14 17 21 23 26 28 31 8 1 R914 R944 AP515 AP832 120 1 3 5 9 12 15 18 20 24 25 29 30 R904 AP5209 AP520 C531 AP512 R911 R502 AP908 AP5210 R941 D501 C517 L801 R935 C901 C633 18 15 10 IC603 19 25 30 36 1-677-124C610 C611 C609 R609 R608 11 5 1
C337
C919
R510
Q1001 R1010
FB504 C529
C530
R212 C223
R111 C123
C504 C503 C520 AP502 C501 1
FB502 FB503
L502
R530 R529
F
G
H
D302
Q906
R922
4 3 5 1 IC902
1 CN801
14
1 5 CN601
8 Q601 1
5
8 Q602
5
I
4
1
4
04 LCD MODULE AND SW UNIT OVER WRITE HEAD
J901 DC IN 3V
J
!
33
34
MZ-R70
6-5. SCHEMATIC DIAGRAM -- MAIN BOARD (1/3) -- · Refer to page 30 for Waveforms. · Refer to page 41 for IC Block Diagrams.
(Page 38)
35
36
(Page 39)
MZ-R70
6-6. SCHEMATIC DIAGRAM -- MAIN BOARD (2/3) -- · Refer to page 42, 43 for IC Block Diagrams.
(Page 36)
37
38
(Page 39)
MZ-R70
6-7. SCHEMATIC DIAGRAM -- MAIN BOARD (3/3) -- · Refer to page 41, 43 for IC Block Diagrams.
(Page 38)
(Page 36)
39
40
6-8. IC BLOCK DIAGRAM
IC501 SN761056
44 ADIP 43 S-MON A+B+C+D I+J NPP TON CSL Aw+Dw TON Peak TON Botm ADIP TE TE TEMP TWpp PK/BTM Aw CSLO VREF075 A-C D-C Malfa Mij AwBPF Dw DwBPF
TE 1 REXT 2 Wpp-LPF 3 VREF 4 C 5 D 6
S-MONITOR
D-C 7 Tpp/Wpp
42 41 40 39 38 37 36 35 34 33 32 31 30 29 28
FE ABCD AVCC OFC-1 OFC-2 PS LP EQ AGND RFOUT CCSL2 VC VREF075 PEAK BOTM
RF Iy 8 Ix 9 Jx 10 Jy 11 A 12 A-C 13 B 14 TON-C CIG CDN PD-I PD-NI PD-O 15 16 17 18 19 20 PEAK/BOTM ABCD FE
27 DGND T-ON APC 25 XRST 24 SCK 23 SBUS 26 OFTRK
SERIAL I/F ADIP 21 DVDD 22 ADIP
IC302 NJM2173
DC CUT2 MIC V+2 OUT2 GV STBY V+ IN2
IC303 TA2131FL
RST SW BEEP IN VREF IN 13 V REF 12 VREF 11 LPF1 TC MT 19 VCC1 20 REG VINR 21 BST1 ADD 10 BST NF1 PWSTB MUTE GND 14
14
13
12
11
10 9 8
18 PW SW
17 MT SW
16 BST SW
15 BEEP
+ +
BIAS
1 OUT1
2 DC CUT1
3 IN1
4 MIC V+1
5 6 7 NOISE GND REG
VINL 22
9 LPF2
BEEP 23 OUTB BEEP 24 OUTA 1 +B
PW A
PW B
BST2
8 BST NF2 7 BST OUT BST AGC
2 LOUT
3 PWR GND
4 ROUT
5 DET
6 AGC IN
41
IC601
MPC17A56FTA
PWM24 24 RI4 23 FI4 22 RI3 21 FI3 VG 20 VG 19 GND VC 18 VC 17 OE 16 FI1 15 RI1 VC VC VC VC PRE DRIVER VG 14 FI2 13 RI2 PGND3 PGND4 27 VC BIAS FO2 VM2 36 VC 35 EFM 34 CLK 33 HB PRE DRIVER LEVEL DET EFM PRE DRIVER 32 PGND1 2 31 HA 30 VG 29 VG2 CHARGE PUMP PRE DRIVER 28 C1H 27 C1L 26 VC2 25 VRECIN 24 OE 23 RECON 22 21 20 19 SW(2.5/1.3V) DTC VREF DW TPOUT COUO COVO COWO FO3 VM34 VM3 RO3 RO4 FO4
36 35 34
33
32
31
30 29 VM4
28
26 25
VC VG PRE DRIVER VC COM 37
VC VG
PRE DRIVER
HI-BRIDGE CONTROL
VC
HI-BRIDGE CONTROL
CPWI 38
CPVI 39
CPUI 40 PGNDW 41 WO 42 VMVW 43 VO 44
PGNDUV 45 UO 46 VMU 47 VC VG PRE DRIVER 3 PHASE CONTROL
HI-BRIDGE CONTROL
HI-BRIDGE CONTROL
PRE DRIVER
VG
VC WI 48
1 2 3 PWM1 VI UI
4 VM1
5 6 RO1 PGND1
7 FO1
8 VM12
9 10 11 12 PGND2 RO2
IC603
MPC18A21MTB
GND R1 F1 VRECIN 1
1 2 3 4
CONTROL LOGIC
OUTA 5 PGND1 1 6 OUTB 7 VRECIN 2 8 VREC 1 9 LIL 1 10 PGND2 1 PGND2 2 LIL 2 VREC 2 11 12 13 14 SYSTEM CONTROL STEP UP/DOWN PRE DRIVER
PWM
SAW
INM 15 INP 16
+
RF 17 DW BTOUT 18
42
IC901 MPC18A31FTA
VROUT 25 VG STEP-UP PRE DRIVER VC VC PWM FFCLR VRMC 39 VC VC 24 RF1 VR XRST 40 23 RF2 CRST 41 RSTREF 42 22 INM1 21 DTC 20 INM2 CLK 43 VB 44 VREF 45 STEP-UP DC/DC CONVERTER 19 VG 18 GND 17 SWVG 16 PWMVC 15 SERON 14 INM4 13 RF4 DCIN RF4 DCIN CHGSW 48 1 DCIN 2 RS 3 INM5 4 RF5 5 BATM 6 INM3 7 INP3 8 RF3 9 FB 10 VREG 11 12 VLD 36 IPGAL 35 34 33 32 ADCL VCMC VCMR ADCR 31 IPGAR 30 VRAD TST3 8 29 LOUT2 9 10 11 12 CONTROL REGISTER I/F 28 27 26 25 13 14 15 CCLK(SSI) CDTO CDTI(SSO) 16 17 18 19 20 21 22 23 24 DGND VD VB VA AGND VCOM DZF OPGAR ROUT1 ROUT2 VRDA OPGAL LOUT1 VR RF2 PWM VC RF2 STEP-UP PRE DRIVER VC SLEEP XWK1 XWK2 XWK3 XWK4 PGND VCON VCIN VC L1 L2 26 VREG BANDGAP REFERENCE HPF DPGA DBB DAC ADO
36 35
34
33 32 VC
31
30
29
28
27
FFCLR 37
SAW OSC2 VB
SYSTEM CONTROL
VG
XRST VSTL 38
CHGMON 46 VC VB CHGB 47
DCIN
IC301 AK4517-VQ-L
CMODE 48 MCLK 1 LRCK BCLK SDTO SDTI DIFO DIFI 2 3 4 5 6 7 CLOCK DIVIDER DCODE0 DCODE1 DCODE2 CS(SCK) PD RST SSB LIN1 RIN1 TST1 LIN2 RIN2 TST2 LIN3 RIN3 47 46 45 44 43 42 41 40 39 38 37
AUDIO I/F CONTROLLER
43
6-9. IC PIN DESCRIPTIONS
· MAIN BOARD IC501 SN761056ADBT (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 Pin 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 (+1.1 V) 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 (+2.4 V) (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 (+1.2 V) 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 (+2.4 V) (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
44
· 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 46 47 to 52 Pin Name VDC0 MNT0 MNT1 MNT2 MNT3 SWDT SCLK XLAT VSC0 SRDT SENS XRST SQSY DQSY (MTFLGL) WRPWR XINT TX VDIO0 OSCI OSCO VSIO0 NC VSC1 XTSL XCS_DSP DIN1 DOUT DT72 VDC1, VDC2 DATAI LRCKI XBCKI ADDT DADT LRCK VSC2 XBCK FS256 A03, A04, A02, A05, A01, A06 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 O O Pin Description Power supply terminal (+1.8 V) (for internal logic) Not used (open) Recording shock detect signal output to the system controller (IC801) Off track signal output to the SN761056ADBT (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" is output every 13.3 msec "L" is output every 13.3 msec "L": reset Subcode Q sync (SCOR) output the system controller (IC801) Almost all, "H" is output Almost all, "H" is output Digital In U-bit CD format subcode Q sync (SCOR) output to the system controller (IC801) 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 (+2.4 V) (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 (+1.8 V) (for internal logic) Serial data input terminal "L": Rch, "H": Lch Not used (fixed at "L") L/R sampling clock signal (44.1 kHz) input terminal 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) output to the A/D, D/A converter (IC301) 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) Not used (open)
* 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
45
Pin No. 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 99 100 101 102 103 104 105 106 107
Pin Name VDIO1 VSIO1 A00, A07, A10, A08, A09 XRAS IXOE IXWE XCAS D1, D2, D0, D3 VDC3 VSC3 A11 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 XLRF CKRF DTRF APCREF LDDR
I/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 O O O O O
Pin Description Power supply terminal (+2.4 V) (for I/O) Ground terminal (for I/O) Address signal output to the external D-RAM Not used (open) "L" active "L" active "L" active Not used (open) Not used (open) Not used (open) Not used (open)
Row address strobe signal output to the external D-RAM Output enable signal output terminal for internal D-RAM
Data write enable signal output terminal for internal D-RAM Column address strobe signal output to the external D-RAM Two-way data bus with the external D-RAM Ground terminal (for internal logic) Address signal output to the external D-RAM Power supply terminal (+1.8 V) (for internal logic) Not used (open)
"L" active
Not used (open) "L" active Not used (open) Not used (open) "L" active
Output enable signal output to the external D-RAM
Data write enable signal output to the external D-RAM Digital in PLL oscillation input from the external VCO Playback EFM full-swing output terminal
Not used (fixed at "L")
Playback EFM asymmetry comparator voltage input terminal Power supply terminal (+2.4 V) (analog system) Playback EFM asymmetry circuit constant current input terminal Playback EFM RF signal input from the SN761056ADBT (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 SN761056ADBT (IC501) Light amount signal (RF/ABCD) bottom hold input from the SN761056ADBT (IC501) Light amount signal (ABCD) input from the SN761056ADBT (IC501) Focus error signal input from the SN761056ADBT (IC501) Auxiliary signal (I3 signal/temperature signal) input terminal Middle point voltage (+1.2 V) input terminal Monitor output of the A/D converter input signal Power supply terminal (+2.4 V) (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 SN761056ADBT (IC501) Connected to the +2.4 V power supply Error signal input for the laser automatic power control Power supply terminal (+2.4 V) (for I/O) Ground terminal (for I/O) Filter f0 control signal output terminal Serial latch signal output terminal Serial clock signal output terminal Writing data output terminal control PWM signal output for the laser automatic power control Not used (open) Not used (open) Not used (open) Not used (open) Not used (fixed at "H") ADIP duplex FM signal (22.05 kHz ± 1 kHz) input from the SN761056ADBT (IC501) Not used (open) A/D converter operational range upper limit voltage input terminal (fixed at "H" in this set) Not used (fixed at "H")
Not used (open)
Control signal output to the reference voltage generator circuit for the laser automatic power
* 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
46
Pin No. 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
Pin Name 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 VSSDRAM VDDDRAM
I/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 I O O -- --
Pin Description Power supply terminal (+1.8 V) (for internal logic) Tracking servo drive PWM signal () output to the MPC17A56FTA (IC601) Tracking servo drive PWM signal (+) output to the MPC17A56FTA (IC601) Focus servo drive PWM signal (+) output to the MPC17A56FTA (IC601) Focus servo drive PWM signal () output to the MPC17A56FTA (IC601) Clock signal (176.4 kHz) output to the MPC18A21MTB (IC603) (X' tal system) Sled servo drive PWM signal () output terminal Sled servo drive PWM signal (+) output terminal Ground terminal (for internal logic) Spindle servo drive PWM signal () output terminal Spindle servo drive PWM signal (+) output terminal FG signal input terminal for spindle servo Input terminal for the test (normally : fixed at "L") EFM signal output when recording mode to the MPC18A21MTB (IC603) Spindle servo drive voltage control signal output to the MPC17A56FTA (IC601) Power supply terminal (+2.4 V) (for I/O) Ground terminal (for I/O) Spindle servo (U) drive signal output to the MPC17A56FTA (IC601) Spindle servo (V) drive signal output to the MPC17A56FTA (IC601) Spindle servo (W) drive signal output to the MPC17A56FTA (IC601) Spindle servo (U) timing signal input from the MPC17A56FTA (IC601) Spindle servo (V) timing signal input from the MPC17A56FTA (IC601) Spindle servo (W) timing signal input from the MPC17A56FTA (IC601) Sled servo (U) drive signal output to the MPC17A56FTA (IC601) Sled servo (V) drive signal output to the MPC17A56FTA (IC601) Sled servo (W) drive signal output to the MPC17A56FTA (IC601) Power supply terminal (+1.8 V) (for internal logic) Ground terminal (for internal logic) Sled servo (U) timing signal input from the MPC17A56FTA (IC601) Sled servo (V) timing signal input from the MPC17A56FTA (IC601) Sled servo (W) timing signal input from the MPC17A56FTA (IC601) Sled servo voltage control signal output to the MPC17A56FTA (IC601) By-pass transistor control signal output to the MPC17A56FTA (IC601) Ground terminal (for internal 16M bit D-RAM) Power supply terminal (+2.4 V) (for internal 16M bit D-RAM) Not used (open) Not used (open) Not used (open) Not used (open) Not