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Service Manual
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MZ-R900
SERVICE MANUAL
Ver 1.2 2001. 03
US Model Canadian Model AEP Model UK Model E Model Australian Model Chinese Model Tourist Model
Photo: Red type
US and foreign patents licensed from Dolby Laboratories Licensing Corporation.
Model Name Using Similar Mechanism Mechanism Type Optical Pick-up Name
NEW MT-MZR900-171 LCX-4R
SPECIFICATIONS
Audio playing system
MiniDisc digital audio system
Wow and Flutter
Below measurable limit
Battery operation time
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.)
Inputs
Microphone: stereo mini-jack, minimum input level 0.25 mV Line in1): stereo mini-jack, minimum input level 49 mV Optical (Digital) in1): optical (digital) mini-jack
Battery life1)
When recording2)
Batteries
(Unit: approx.hours)(EIAJ3)) Stereo LP2 LP4 8 10.5 13
Outputs
i/LINE stereo mini-jack headphones/earphones: maximum output level 5 mW + 5 mW, load impedance 16 ohm LINE OUT: 194 mV, load impedance 10 kilohm 1)The LINE IN (OPT) jack is used to connect either a digital (optical) cable or a line (analog) cable. 2)The i/LINE OUT jack connects either headphones/earphones or a line cable. OUT2):
Recording and playback time
When using MDW-80: Maximum 160 min. in monaural Maximum 320 min. in stereo
NH-14WM nickel metal hydride rechargeable battery4) LR6 (SG) Sony alkaline dry battery5) NH-14WM nickel metal hydride rechargeable battery4) + One LR6 (SG)5)
1) The
Revolutions
350 rpm to 2,800 rpm (CLV)
7
10
14
Error correction
ACIRC (Advanced Cross Interleave Reed Solomon Code)
19
26
30
Sampling frequency
44.1 kHz
Power requirements
Sony AC Power Adaptor connected at the DC IN 3V jack: 120 V AC, 60 Hz (US model) 230240 V AC, 50/60 Hz (UK and Hong Kong model) 220230 V AC, 50/60 Hz (European model) 120 V AC, 50 Hz (Canadian model) 240 V AC, 50 Hz (Australian model) 220 V AC, 50 Hz (Chinese model) 110/220 V AC, 60 Hz (Korean model) 100240 V AC, 50/60 Hz (Other models) Nickel metal hydride rechargeable battery NH14WM LR6 (size AA) alkaline battery
Sampling rate converter
Input: 32 kHz/44.1 kHz/48 kHz
Coding
ATRAC (Adaptive TRansform Acoustic Coding) ATRAC3 -- LP2 ATRAC3 -- LP4
Modulation system
EFM (Eight to Fourteen Modulation)
Number of channels
2 stereo channels 1 monaural channel
battery life may be shorter due to operating conditions and the temperature of the location. 2) When you record, use a fully charged rechargeable battery. Recording time may differ according to the alkaline batteries.
Frequency response
20 to 20,000 Hz ± 3 dB
Continued on next page
PORTABLE MINIDISC RECORDER
9-927-991-13
2001C0500-1 C 2001.3
Sony Corporation
Audio Entertainment Group General Engineering Dept.
MZ-R900
in accordance with the EIAJ(Electronic Industries Association of Japan) standard. 4) When using a 100% fully charged rechargeable battery. 5) When using a Sony LR6 (SG) "STAMINA" alkaline dry battery (produced in Japan).
3) Measured
TABLE OF CONTENTS 1. 2. 3.
3-1. 3-2. 3-3. 3-4. 3-5. 3-6. 3-7. 3-8. 3-9. 3-10. 3-11. 3-12. 3-13.
SERVICING NOTES ............................................... 3 GENERAL ................................................................... 4 DISASSEMBLY
Disassembly Flow ........................................................... Panel Assy, Bottom ......................................................... Panel Assy, Upper Section .............................................. "LCD Module", "Panel Assy, Upper" ............................ MAIN Board Assy .......................................................... "Case Assy, Battery", "MAIN Board" ........................... Strip, Ornamental ............................................................ "MD Mechanism Deck (MT-MZR900-171)", "Chassis Assy, Set" ......................................................... Service Assy, OP (LCX-4R) ........................................... Holder Assy ..................................................................... MOTOR FLEXIBLE Board ............................................ Motor, DC (Sled) (M602) ............................................... "Motor, DC (Spindle) (M601)", "Motor, DC (Over Write Head UP/DOWN) (M603) ..... 5 5 6 6 7 7 8 8 9 10 10 11 11
When playing
(Unit: approx.hours)(EIAJ1)) Batteries Stereo LP2 LP4 NH-14WM nickel metal hydride rechargeable battery2) LR6 (SG) Sony alkaline dry battery3) NH-14WM nickel metal hydride rechargeable battery2) + One LR6 (SG)3)
1) Measured
21
23
26
30
35
38
53
60
66
in accordance with the EIAJ(Electronic Industries Association of Japan) standard. 2) When using a 100% fully charged rechargeable battery. 3) When using a Sony LR6 (SG) "STAMINA" alkaline dry battery (produced in Japan).
4. 5. 6.
TEST MODE .............................................................. 12 ELECTRICAL ADJUSTMENTS ......................... 17 DIAGRAMS
27 28 29 30 31 33
Dimensions Mass
Approx. 78.9 × 17.1 × 72.0 mm (w/h/d) (31/8 × 11/16 × 27/8 in.) Approx. 110 g (3.9 oz) the recorder only
Supplied accessories
AC power adaptor (1) Headphones/earphones with a remote control (1) Rechargeable battery (1) Dry battery case (1) Rechargeable battery carrying case (1) Carrying pouch/carrying case with a belt clip (except U.S.A model) (1) AC plug adaptor (World model only) (1) Optical cable (1)
6-1. Block Diagram SERVO Section ................................. 6-2. Block Diagram AUDIO Section ................................. 6-3. Block Diagram KEY CONTROL/DISPLAY/ POWER SUPPLY Section ............................................ 6-4. Printed Wiring Boards ..................................................... 6-5. Schematic Diagram ......................................................... 6-6. IC Pin Function Description ...........................................
7.
EXPLODED VIEWS
7-1. Panel Section ................................................................... 39 7-2. Chassis Section ............................................................... 40 7-3. MD Mechanism Deck Section (MT-MZR900-171) ....... 41
On power sources
· For use in your house: Use the AC power adaptor
supplied with this recorder. Do not use any other AC power adaptor since it may cause the recorder to malfunction.
8.
ELECTRICAL PARTS LIST ............................... 42
Polarity of the plug
Design and specifications are subject to change without notice.
SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT À LA SÉCURITÉ! LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
2
MZ-R900 SECTION 1 SERVICING NOTES
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic break-down and also use the procedure in the printed matter which is included in the repair parts. The flexible board is easily damaged and should be handled with care. NOTES ON LASER DIODE EMISSION CHECK Never look into the laser diode emission from right above when checking it for adjustment. It is feared that you will lose your sight. NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK (LCX-4R) The laser diode in the optical pick-up block may suffer electrostatic break-down easily. When handling it, perform soldering bridge to the laser-tap on the flexible board. Also perform measures against electrostatic break-down sufficiently before the operation. The flexible board is easily damaged and should be handled with care. · In performing the repair with the power supplied to the set, removing the MAIN board causes the set to be disabled. In such a case, fix a convex part of the open/close detect switch (S806 on MAIN board) with a tape in advance. Handle the FLEXIBLE board (overwrite head) with care, as it has been soldered directly to the MAIN board. In repairing the component side of MAIN board, connect the FLEXIBLE board (overwrite head) and the MAIN board with the lead wires in advance. (See page 7)
FLEXIBLE board (Over write head)
upper panel assy
Tape MAIN board S806
· Replacement of CDX2671-203GA (IC801) used in this set requires a special tool. · On the set having the microcomputer version 1.000, some adjusted values were set in the manual mode at the shipment, but these data will be cleared when the NV is reset. Therefore, on the set having the microcomputer version 1.000, change the adjusted values following the Change of Adjusted Values immediately after the NV was reset. (See page 17) · If the nonvolatile memory was replaced on the set, the modified program data must be written to the nonvolatile memory. In such a case, write the modified data that meets the microcomputer version following the patch data rewriting procedure at the replacement of nonvolatile memory. (See page 22)
laser-tap
OPTICAL PICK-UP FLEXIBLE BOARD
CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. Notes on chip component replacement · Never reuse a disconnected chip component. · Notice that the minus side of a tantalum capacitor may be damaged by heat. Flexible Circuit Board Repairing · Keep the temperature of the soldering iron around 270 °C during repairing. · Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). · Be careful not to apply force on the conductor when soldering or unsoldering.
3
MZ-R900 SECTION 2 GENERAL
This section is extracted from instruction manual.
Looking at controls
See pages in ( ) for more details.
The display window of the recorder
1
2
3
4
5
The recorder
1 2 3 4 5 6 7
qa qs 6 qd qf qg qh qj 7 8 9 q; qa qs qd qf
8 9 q;
qk ql w;
A END SEARCH button (17) (47) B Battery compartment (13) C Jog lever (L) (MENU/ENTER) (11) (20) (25) (34) (43) (53) D E F G H I J K VOL +/ button (19) (47) REC MODE button (23) REC indicator (29) Terminals for attaching dry battery case (14) SYNCHRO REC ON/OFF (synchrorecording) switch (at the rear) (24) DC IN 3V jack (13) (16) HOLD switch (at the rear) (14) (55) REC (record) switch (17) (25)
L OPEN button (15) M X (pause) button (17) (19) (27) (31) (44) (47) (51) N Display window (24) (34) (53) O Jog lever (R) (N, ./>) (12) (17) (19) (44) (47) P x (stop)/CHARGE button (13) (17) (19) (23) (43) Q LINE IN (OPT) jack (16) (22) R MIC (PLUG IN POWER) jack (25) S T MARK button (44) T i (headphones/earphones)/LINE OUT jack (14) (31) (41)
A Alarm indication (53) B Character information display (29) (34) Displays the disc and track names, date, error messages, track numbers, etc. C AM/PM indication (30) Lights up along with the time indication in the 12-hour system. D Time display (29) (40) Shows the recorded time, current time, elapsed time of the track or MD being recorded or played. E Battery indication (13) Shows approximate battery condition. F Sound indication (36) Lights up when Digital Sound Preset is on. G Level meter (28) Shows the volume of the MD being played or recorded. H LP2, LP4, MONO (monaural) indication (23) I SYNC (synchro-recording) indication (24) Lights up while synchro-recording.
J REC indication (17) Lights up while recording. When flashing, the recorder is in record standby mode. K REC DATE (recorded/current date) indication (40) Lights up along with the date and time the MD was recorded. When only "DATE" lights up, the current date and time are displayed. L REMAIN (remaining time/tracks) indication (28) (40) Lights up along with the remaining time of the track, the remaining time of the MD, or the remaining number of tracks. M Play mode indication (34) Shows the play mode of the MD. N Disc indication (24) (34) Shows that the disc is rotating for recording, playing or editing an MD.
8
9
The headphones/earphones with a remote control
A B C DEF G H
+
I
J
K
A DISPLAY button (29) (38) (46) (48) (53) B PLAYMODE button (35) (48) C RPT/ENT (repeat/enter) button (36) (37) D SOUND button (36) E Clip F X (pause) button (19) (48) (51)
G Control (./N>) (12) (19) (36) (46) (48) (51) (53) N> : play, AMS, FF . : REW H Control (VOL +/) (12) (19) (48) Pull and turn to adjust the volume. I Display window (29) (36) J HOLD switch (14) (55) K x (stop) button (19) (38) (46) (53)
The display window of the remote control
A B C D E F
G
H
A Track number display (29) (36) (54) B Character information display (29) (36) (54) C Disc indication (29) (36) (54) D Alarm indication (54)
E F G H
Play mode indication (36) Battery indication (29) (36) (54) REC indication (17) (29) SOUND indication (36)
10
4
MZ-R900 SECTION 3 DISASSEMBLY
· This set can be disassembled in the order shown below.
3-1.
SET
DISASSEMBLY FLOW
3-2. PANEL ASSY, BOTTOM
3-3. PANEL ASSY, UPPER SECTION
3-5. MAIN BOARD ASSY 3-4. "LCD MODULE", "PANEL ASSY, UPPER"
3-6. "CASE ASSY, BATTERY", "MAIN BOARD"
3-7. STRIP, ORNAMENTAL
3-8. "MD MECHANISM DECK (MT-MZR900-171)", "CHASSIS ASSY, SET"
3-9. SERVICE ASSY, OP (LCX-4R) 3-11. MOTOR FLEXIBLE BOARD
3-10. HOLDER ASSY
3-12. MOTOR, DC (SLED) (M602)
3-13. "MOTOR, DC (SPINDLE) (M601)", "MOTOR, DC (OVER WRITE HEAD UP/DOWN) (M603)"
Note: Follow the disassembly procedure in the numerical order given.
3-2.
PANEL ASSY, BOTTOM
Note: On installation, adjust the position of both two switches (S801, S802) and two knobs (hold). S801 S802
3 lid, battery case
1 Open the lid, battery case. 2 claw
4 Close the battery terminal (plus).
5 two screws (1.4)
5 two screws (1.4)
5 screw (1.4) A
knob (hold)
6 Remove the "panel assy, bottom" in the direction of arrow A.
5
MZ-R900
3-3.
PANEL ASSY, UPPER SECTION
1 flexible board (CN801) 3 two screws (1.4)
4 panel assy, upper section 3 two screws (1.4)
2 Push button (open).
3-4.
"LCD MODULE", "PANEL ASSY, UPPER"
1 four screws (1.7) 2 LCD module
3 button (A), control Note: On installation, adjust the hole of "button (A), control" and boss of "panel assy, upper". (in the fig. a , b ) a
a d b c
4 button (B), control Note: On installation, adjust the boss of "button (B), control" and hole of "panel assy, upper". (in the fig. c , d )
b d 5 panel assy, upper c
6
MZ-R900
3-5.
MAIN BOARD ASSY
6 flexible board (CN501) 5 7 main board assy
1 Remove two solders of flexible board.
3 four screws (M1.4 toothed lock)
4 screw (1.4)
2 flexible board (CN502)
3-6.
"CASE ASSY, BATTERY", "MAIN BOARD"
2 case assy, battery
3 main board
1 Remove the solder of terminal (plus).
1 Remove the solder of terminal (minus).
7
MZ-R900
3-7.
STRIP, ORNAMENTAL
A 1 Pull toward the direction A to disengage two bosses a .
5 Remove the "strip, ornamental" in the direction of arrow C.
B
Note: As the "strip, ornamental" is very fragile, do not give an excessive force to the entire assy when removing it.
)
)
2 Open toward the direction B to disengage two bosses b and convex portions pointed . with A
*
C 3 three bosses b boss a boss
)
)
B 2 Open toward the direction B to disengage two bosses b and convex portions pointed . with
*
a boss
@ @
4 two convex portions pointed with
@
b boss
3-8.
"MD MECHANISM DECK (MT-MZR900-171)", "CHASSIS ASSY, SET"
2 boss
3 MD mechanism deck (MT-MZR900-171)
2 boss
4 spring (arm), tension
1 screw (1.4)
5 chassis assy, set
1 screw (1.4)
8
MZ-R900
3-9.
SERVICE ASSY, OP (LCX-4R)
2 gear (SA) 6 screw (M1.4) 1 washer (0.8-2.5) 7 spring, thrust 3 screw (M1.4) 9 Pull off "screw, lead" 4 spring (S), rack 5 screw
8 0 bearing (N)
qa Opening the over write head toward the direction A, remove the "service assy, OP (LCX-4R) toward the direction B. B
Note: Do not open the entire assy forcibly, when opening the over write head.
service assy, OP (LCX-4R)
A
over write head section
9
MZ-R900
3-10. HOLDER ASSY
5 Remove the holder assy in the direction of arrow D.
B 1 Open the holder assy. 2 Push the convex portion toward the direction B and open the holder assy toward the direction A to erect uprightly. C 3 Remove the concave portion in the direction of arrow C.
A
D
4 boss
3-11. MOTOR FLEXIBLE BOARD
1 Remove four solders of "motor, DC (sled) (M602)". 1 Remove two solders of DC motor (over write head up/down) (M603).
2 adhesive sheet 1 Remove four solders of "motor, DC (spindle) (M601)".
Note: Align a circular hole in the stripping paper with a circular hole in the "motor, DC (sled)", when mounting the motor flexible board.
3 motor flexible board
DC motor (sled) circular hole
10
MZ-R900
3-12. MOTOR, DC (SLED) (M602)
1 Remove four solders of motor flexible board.
2 washer (0.8-2.5) 4 two screws (M1.4) 3 gear (SA)
5 motor, DC (sled) (M602)
3-13. "MOTOR, DC (SPINDLE) (M601)", "MOTOR, DC (OVER WRITE HEAD UP/DOWN) (M603)"
1 Remove six solders of motor flexible board. qa motor, DC (over write head up/down) (M603) 6 two screws (M1.4)
Note: Press-fit the gear (HA) up to the position of the "motor, DC (over write head up/down) (M603) as shown below. gear (HA)
qs chassis assy, gear 4 three screws (M1.4) 9 screw (M1.2)
2.65 mm chassis assy, gear motor, DC (over write head up/down) (M603)
5 motor, DC (spindle) (M601)
0 gear (HA) 8 gear (HB) 7 washer (0.8-2.5) 2 washer (0.8-2.5)
3 gear (HC)
11
MZ-R900 SECTION 4 TEST MODE
Outline
· This set provides the Overall adjustment mode that allows CD and MO discs to be automatically adjusted when in the test mode. In this overall adjustment mode, the disc is discriminate between CD and MO, and each adjustment is automatically executed in order. If a fault is found, the system displays its location. Also, the manual mode allows each individual adjustment to be automatically adjusted. · Operation in the test mode is performed with the set. A key having no particular description in the text, indicates a set key. · For the LCD display, the LCD on the remote commander is shown, but the contents of LCD display on the set are same.
Operation in Setting the Test Mode
· When the test mode becomes active, first the display check mode is selected. · Other mode can be selected from the display check mode. · When the test mode is set, the LCD repeats the following display.
Remote commander LCD display
All lit
888
BASS12
Setting Method of Test Mode
There are two different methods to set the test mode: 1 Short SL801 (TEST) on the MAIN board with a solder bridge (connect pin 3 of IC801 to the ground). Then, turn on the power. MAIN Board (Conductor Side)
All off
Microcomputer version display
003 V1.000
Destination code 002 : Except US, Canadian models 003 : US, Canadian models
· When the X key is pressed and hold down, the display at that time is held so that display can be checked. Caution: On the set having the microcomputer version 1.000, some adjusted values were set in the manual mode at the shipment, but these data will be cleared when the NV is reset. Therefore, on the set having the microcomputer version 1.000, change the adjusted values following the Change of Adjusted Values immediately after the NV was reset (see page 17).
Releasing the Test Mode
For test mode set with the method 1: Turn off the power and open the solder bridge on SL801 (TEST) on the MAIN board.
+ C830 L801
+ C809
3 79 77 70 81 60 58 0 74 67 65 63 62 57 61 31 133 135 137 68 55 54 56 59 49 53 4 76 73 66 44 50 47 35 36 45 31 30 51 113 24 42 25 20 26 IC801 28 16 40 23 17 38 21 15 34 27 8 22 96 95 18 19 4 9 29 2 7 6 1 3 48 10 5 241 12 11
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 17) has not been finished completely, always start in the test mode. (The set cannot start in normal mode)
C813
SL801 (TEST)
2 In the normal mode, turn on the [HOLD] switch. While pressing the [VOL --] key press the following order:
> t > t . t . t > t . t > t . t X t X
12
C801
MZ-R900
Configuration of Test Mode [Test Mode $Display Check Mode%] Press the > or [VOL +] key [Manual Mode]
Press the x key
[VOL +] key:100th place of item number [Major item switching]
N key x key
increase.
[VOL --] key:100th place of item number
decrease.
[Servo Adjustment] [Audio Adjustment] [Power Supply Adjustment] [OP Alignment Adjustment]
[VOL +] key:10th place of item number increase. [Medium item switching] [VOL --] key:10th place of item number
N key x key
decrease.
Press the . or [VOL --] key
[Overall Adjustment Mode]
Press the x key
[Minor item switching]
N key: Unit place of item number
[Electrical Offset Adjustment]
Power Supply Adjustment Auto Item Feed CD Overall Adjustment/ MO Overall Adjustment
increase.
. key: Unit place of item number
decrease.
[Adjusted value variation] [VOL +] key:Increases the
adjusted value
Press the [JOG LEVER $L% R] (up) key, or [DISPLAY] key on the remote commander
[Self-Diagnosis Result Display Mode]
Press the x key Press the N or [REC] key
[VOL --] key:Decreases the
adjusted value
[Sound Skip Check Result Display Mode]
Press the x key Press the [T MARK] key, or [DISPLAY] key on the remote commander for several seconds (about 3 seconds)
[Adjusted value write]
X key: When adjusted value is
[Key Check Mode]
The key check quits, or open the upper panel
changed: Adjusted value is written. When adjusted value is not changed: That item is adjusted automatically.
Manual Mode
Mode to adjust or check the operation of the set by function. Normally, the adjustment in this mode is not executed. However, the Manual mode is used to clear the memory, power supply adjustment, and laser power check before performing automatic adjustments in the Overall Adjustment mode. · Transition method in Manual Mode 1. Setting the test mode (see page 12). 2. Press the > or[VOL +] key activates the manual mode where the LCD display as shown below.
Remote commander LCD display
000 M a n u a l
3. During each test, the optical pick-up moves outward or inward while the > or . key is pressed for several seconds respectively. 4. Each test item is assigned with a 3-digit item number; 100th place is a major item, 10th place is a medium item, and unit place is a minor item. The values adjusted in the test mode are written to the nonvolatile memory (for the items where adjustment was made).
13
MZ-R900
5. The display changes a shown below each time the [JOG LEVER $L% R] (up) key or [DISPLAY] key on the remote commander is pressed. · Address & Adjusted Value Display
Remote commander LCD display
Self-Diagnosis Result Display Mode
This set uses the self-diagnostic function system in which if an error occurred during the recording or playing, the mechanism control block and the power supply control block in the microcomputer detect it and record its cause as history in the nonvolatile memory. By checking this history in the test mode, you can analyze a fault and determine its location. Total recording time is recorded as a guideline of how long the optical pickup has been used, and by comparing it with the total recording time at the time when an error occurred in the selfdiagnosis result display mode, you can determine when the error occurred. Clear both self-diagnosis history data and total recording time, if the optical pickup was replaced. · Self-Diagnosis Result Display Mode Setting Method 1. Setting the test mode (see page 12). 2. In the display check mode, press the [JOG LEVER $L% R] (up) key or [DISPLAY] key on the remote commander activates the self-diagnosis result display mode where the LCD display as shown below.
Remote commander LCD display
011 C 6 8 S 0 1
address item number adjusted value
· Jitter Value & Adjusted Value Display
Remote commander LCD display
011 O F F J 0 1
jitter value item number adjusted value
· Block Error Value & Adjusted Value Display
Remote commander LCD display
011 0 6 3 B 0 1
block error value item number adjusted value
· ADIP Error Value & Adjusted Value Display
Remote commander LCD display
0XX 1 0 0 0 0
history code
Total recording time when error occurred
011 0 5 9 A 0 1
ADIP error value item number adjusted value
error display code
· Item Title Display
Remote commander LCD display
3. Then, each time the > key is pressed, LCD display descends by one as shown below. Also, the LCD display ascends by one when the . key is pressed.
011 L r e f P w 0 1
item title item number adjusted value
1
0XX 1 * * * * 0XX N * * * * 0XX N 1 * * * * 0XX N 2 * * * * 0XX R _ * * * *
1
XX : Error code * * * * : Total recording time
However in the power mode (item number 700's), only the item is displayed. 6. Quit the manual mode, and press the x key to return to the test mode (display check mode).
Overall Adjustment Mode
Mode to adjust the servo automatically in all items. Normally, automatic adjustment is executed in this mode at the repair. For further information, refer to "Section 5 Electrical Adjustments" (see page 17).
If the [JOG LEVER $L% Q] (up) key or the [DISPLAY] key on remote commander is pressed with this display, the LCD switches to the simple display mode. 4. Quit the self-diagnosis result display mode, and press the x key to return to the test mode (display check mode).
14
MZ-R900
· Description of Error Indication Codes Problem No error Indication code 00 01 Servo system error 02 03 04 TOC error Power supply system error 11 12 22 31 32 Offset system error 33 34 · Description of Indication History History code number 1 N N1 N2 R_ Description The first error The last error One error before the last. Two errors before the last. Total recording time Meaning of code No error Illegal access target address was specified High temperature Focus error Spindle error TOC error Data reading error Low battery Offset error Focus error ABCD offset error Tracking error Offset error X1 tracking error Offset error Simple display --Adrs Temp Fcus Spdl TOC Data LBat Ofst ABCD TE X1TE No error Attempt to access an abnormal address High temperature Disordered focus Abnormal rotation of disc Faulty TOC contents Data could not be read at SYNC Momentary interruption detected Offset error Focus error ABCD offset error Tracking error Offset error X1 tracking error Offset error Description
Reset the error display code
After servicing, reset the error display code. · Setting method of Reset the Error Display Code 1. Setting the test mode (see page 12). 2. Press the [JOG LEVER $L% R] (up) key or [DISPLAY] key on the remote commander activates the self-diagnosis result display mode. 3. To reset the error display code, press the X key (2 times) when the code is displayed (except "R_****"). (All the data on the 1, N, N1, and N2 will be reset)
15
MZ-R900
Sound Skip Check Result Display Mode
This set can display the count of errors that occurred during the recording/playing for checking. · Setting method of sound skip check result display mode 1. Set the test mode (see page 12). 2. Press the N key or [REC] key, and the playing or recording sound skip result display mode becomes active respectively where the LCD displays the following.
Remote commander LCD display
Key Check Mode
This set can check if the set and remote commander function normally. · Setting Method of Key Check Mode 1. Setting the test mode (see page 12). 2. Press the [T MARK] key or [DISPLAY] key on the remote commander for several seconds (about 3 seconds) activates the key check mode. (At the last two digits, AD value of remote commander key line is displayed in hexadecimal)
Remote commander LCD display
000 P * * R * *
Total count of record system errors (hex.) Total count of play system errors (hex.)
000
**
**: AD value of the remote commander key (hexadecimal 00 to FF)
3. When the N key is pressed, total error count is displayed on the LCD, and each time the > key is pressed, the display item moves down by one as shown below. Also, if the . key is pressed, the display item moves up by one, then if the [REC] key is pressed, the display in the record mode appears. When the [REC] key is pressed, total error count is displayed on the LCD, and each time the > key is pressed, the display item moves down by one as shown below. Also, if the . key is pressed, the display item moves up by one, then if the N key is pressed, the display in the play mode appears.
Playing sound skip result display Recording sound skip result display
3. When each key on the set and on remote commander is pressed, its name is displayed on the remote commander LCD. (The operated position is displayed for 4 seconds after the slide switch is operated. If any other key is pressed during this display, the remote commander LCD switches to its name display) Example1: When > key on the set is pressed:
Remote commander LCD display
000 FF
**
**: AD value of the remote commander key (hexadecimal 00 to FF)
000 P * * R * * 000 E I B * * 000 S t a t * * 000 A d r s * * 000 B E m p * * 000 # # # # # #
000 P * * R * * 000 B O v r * * 000 B f u l * * 000 R t r y * * 000 # # # # # #
Example2: When N > key on the remote commander is pressed:
Remote commander LCD display
000 rPLAY
**
**: AD value of the remote commander key (hexadecimal 00 to FF)
4. When all the keys on the set and on the remote commander are considered as OK, the following displays are shown for 4 seconds. Example1: When the keys on the set are considered as OK:
Remote commander LCD display
P**R**: Total play/record errors (hex.) ** : Counter of sound skip check each item (hex.) ######: 6-digit address where sound was skipped last (hex.)
888 SET OK **
**: AD value of the remote commander key (hexadecimal 00 to FF)
· Cause of Sound Skip Error Cause of error EIB Play Stat Adrs BEmp BOvr Record Bful Rtry Description of error Sound error correction error Decoder status error Address access error Buffer is empty Buffer is full, and sounds were dumped Buffer capacity becomes less, and forcible writing occurred Retry times over Example2: When the keys on the remote commander are considered as OK:
Remote commander LCD display
888 RMC OK **
**: AD value of the remote commander key (hexadecimal 00 to FF)
5. When all keys were checked or if the upper panel is opened, the key check mode quits and the test mode (display check mode) comes back.
4. To quit the sound skip check result display mode and to return to the test mode (display check mode), press the x key.
16
MZ-R900 SECTION 5 ELECTRICAL ADJUSTMENTS
Outline
· In this set, automatic adjustment of CD and MO can be performed by entering the test mode (see page 12). However, before starting automatic adjustment, the memory clear, power supply adjustment, and laser power check must be performed in the manual mode. · A key having no particular description in the text, indicates a set key. · For the LCD display, the LCD on the remote commander is shown, but the contents of LCD display on the set are same. · Setting method of NV reset 1. Select the manual mode of the test mode, and set item number 021NV Reset (see page 13).
Remote commander LCD display
021 ResNV CC
2. Press the X key.
Remote Commander LCD display
Precautions for Adjustment
1. Adjustment must be done in the test mode only. After adjusting, release the test mode. 2. Use the following tools and measuring instruments. · Test CD disc TDYS-1 (Part No. : 4-963-646-01) · SONY MO disc available on the market · Digital voltmeter · Laser power meter LPM-8001 (Part No. : J-2501-046-A) · Thermometer (using the Temperature Correction) 3. Unless specified otherwise, supply DC 3V from the DC IN 3V jack (J601). 4. Switch position SYNCHRO REC switch .............................. OFF HOLD switch ............................................... OFF
021 ResOK?
3. Press the X key once more.
Remote commander LCD display
021 Res***
NV reset (after several seconds)
021 Reset!
4. Press the x key to quit the manual mode, and activate the test mode (display check mode). · Change of Adjusted Values On the set having the microcomputer version 1.000, some adjusted values were set in the manual mode at the shipment, but these data will be cleared when the NV is reset. Therefore, on the set having the microcomputer version 1.000, modify the adjusted values through the following procedure immediately after the NV was reset. 1. Item numbers in which the adjusted values are to be modified Item number 832 Item number 862 Item number 871 Item number 872 2. Adjusted values modifying procedure 1) Select the manual mode of the test mode, and set item number 832 (see page 13).
Remote commander LCD display
Adjustment Sequence
1. NV Reset (Memory clear) r 2. Power Supply Manual Adjustment r 3. Temperature Correction (item number: 014) r 4. Laser Power Check r 5. Electrical offset Adjustment Caution: This adjustment must be made with no disc loaded. r 6. CD Overall Adjustment r 7. MO Overall Adjustment r 8. RESUME Clear Manual Mode Overall Mode
Manual Mode
Overall Mode
Manual Mode
832 Pw-T W **
**:Adjusted value
NV Reset
Caution: On the set having the microcomputer version 1.000, some adjusted values were set in the manual mode at the shipment, but these data will be cleared when the NV is reset. Therefore, on the set having the microcomputer version 1.000, change the adjusted values following the Change of Adjusted Values immediately after the NV was reset.
2) Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes E4. 3) Press the X key to write the adjusted value. 4) Select the manual mode of the test mode, and set item number 862 (see page 13).
Remote commander LCD display
862 V1dat
**:Adjusted value
**
5) Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 01. 6) Press the X key to write the adjusted value.
17
MZ-R900
7) Select the manual mode of the test mode, and set item number 871 (see page 13).
Remote commander LCD display
· Adjustment method of Vc PWM Duty (L) (item number: 762)
Remote commander LCD display
871 V5num
**:Adjusted value
**
762 Vc1PWM **
**: Adjusted value
8) Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 20. 9) Press the X key to write the adjusted value. 10) Select the manual mode of the test mode, and set item number 872 (see page 13).
Remote commander LCD display
1. Connect a digital voltmeter to the AP914 (VC) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --] key + 0.005 (voltage down) so that the voltage becomes 2.40 0.01 V.
digital voltmeter MAIN board AP914 (VC) AP912 (GND)
872 V5dat
**:Adjusted value
**
11) Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 39. 12) Press the X key to write the adjusted value.
2. Press the X key to write the adjusted value. (The item number changes to 763 when X key is pressed) Adjustment and Connection Location: MAIN board (see page 19) · Adjustment method of Vc PWM Duty (H) (item number: 763)
Remote commander LCD display
Power Supply Manual Adjustment
· Adjustment sequence Adjustment must be done with the following steps. 1. Vc PWM Duty (L) adjustment (item number: 762) r 2. Vc PWM Duty (H) adjustment (item number: 763) r 3. Vl PWM Duty adjustment (item number: 764) · Setting method of power supply manual adjustment 1. Make sure that the power supply voltage is 3V. 2. Set the test mode (see page 12). 3. Press the . or [VOL--] key to activate the overall adjustment mode.
Remote commander LCD display
763 VchPWM **
**: Adjusted value
1. Connect a digital voltmeter to the AP914 (VC) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 2.75 ± 0.015 V.
digital voltmeter MAIN board AP914 (VC) AP912 (GND)
000 Assy00
4. Press the [JOG LEVER $L% r] (down) key, or [PLAYMODE] key on the remote commander. (Pressing the [JOG LEVER $L% r] (down) key, or [PLAYMODE] key on the remote commander causes the item number to be switched to 762.)
2. Press the X key to write the adjusted value. (The item number changes to 764 when X key is pressed) Adjustment and Connection Location: MAIN board (see page 19) · Adjustment method of Vl PWM Duty (item number: 764)
Remote commander LCD display
764 Vl PWM
**: Adjusted value
**
1. Connect a digital voltmeter to the AP915 (VL) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --] key 0.005 (voltage down) so that the voltage becomes 2.30 + 0.01 V.
digital voltmeter MAIN board AP915 (VL) AP912 (GND)
18
MZ-R900
2. When press the X key to write the adjusted value, LCD displays as follows and power supply manual adjustment has completed.
Remote commander LCD display
7. Press the N key, and set the laser CD read adjustment mode (item number 012).
Remote commander LCD display
000 ADJ
012 HrefPw
**
OK
8. Check that the laser power meter reading is 0.97 ± 0.10 mW. 9. Check that the voltage both ends (TP (+) and TP ()) of resistor R521 at this time is below 44 mV. 10. Press the N key, and set the laser MO write adjustment mode (item number 013).
Remote commander LCD display
Adjustment and Connection Location: MAIN board
Temperature Correction
· Adjustment Method of temperature correction 1. Select the manual mode of test mode, and set the mode number 014 (see page 13).
Remote commander LCD display
013 WritPw
**
014 SetTmp **
**: Adjusted value
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.
11. Check that the laser power meter reading is 4.95 ± 0.50 mW. 12. Check that the voltage both ends (TP (+) and TP ()) of resistor R521 at this time is below 80 mV. 13. Press the x key to quit the manual mode, and activate the test mode (display check mode). Checking and Connection Location: MAIN board Adjustment/checking and Connection Location:
Laser Power Check
Connection :
laser power meter
MAIN Board (Conductor side)
Optical pick-up objective lens
AP912 (GND)
digital voltmeter
C325 R317 R318 C211 R212 R211 R111 C111 R302 R307
AP914 (VC)
AP915 (VL)
MAIN board TP (+) TP ()
C326
C340
C330
C110
Q302
C210
R112
D
+ C323
C336
G
R306
S
9
C101
Checking Method : 1. Select the manual mode of test mode (see page 13), and set the laser power adjusting mode (item number 010).
C318
C314
C116
C118 C117 R118 C112 C212
C203
C103
CN502 15 R305 10 5 1
5
4
1
16
IC303
8 C320 + 13 12 R218 1
28
22 21
R304
42 43
29 28
C216
R202 C102 R201
7 8 C305 + C201 C306 C302 14
15
C912
C913
Remote commander LCD display
R102 R101
IC301
4 3
IC551
C
C910
C909
+ C303
R319 C327 + C345 + C315
C928
010 Laser
2. Press the . key continuously until the optical pick-up moves to the most inward track. 3. Open the cover and set the laser power meter on the objective lens of the optical pick-up. 4. Press the N key, and set the laser MO read adjustment mode (item number 011).
Remote commander LCD display
L303 C344 + C316 R309 R303 R310 4 5
C202
C217 C218
C914
IC902
1 2 56 1 C525 C521 C501 C504 C505 C506 C507 R501 + C529 B R502 C531 14 15
C304 L302
+ C301
Q904
C923 C925 C924 + C904 D R916 S C927 G
D902
L301
A
K
R920
+ C524
K
R301 A
R942
C922
Q501
D303
C926 C918 56 C915 K R910 R941 R909 C908 C921 R813 R903 C905 R902 K A 28 29 A F801 43 A 14 1
R507 C503
R519
1 16
R905
R904
R919 R916 R914
R521
C906
8 9 C105 + 12 C205 +
13
R816
R932
IC302
L501
R815
IC901
R918 R917 R911
C526
R915
C331 FB301 FB303 FB304 FB302 C319 C328
TP (+)
TP ()
D904
C337 C
D901
+ C902 K
42 R949 R912 R901 R947 R906 + C919 + C920 R946 C911 +
011 LrefPw
**
FB305
C333 C324 C317 A/K C338 C335 B R811
D301
K
Q803
E C825
FB306
C901 +
D302
R105 C2 C836 C107 R846 1 5 C1
Q801
C601 10 15 18 A
TH601
C602 R602 C605
5. Check that the laser power meter reading is 0.81 ± 0.08 mW. 6. Check that the voltage both ends (TP (+) and TP ()) of resistor R521 at this time is below 44 mV.
C329 R103
A C106 C206
R948
Q903
BCE R603
R204 C207 R205 B1 E B2 R203
R936 R913
R104
D605
A K R622 C633
K
CN801
D602
C837
J601 DC IN 3V
+
+ C518
D903 15
L502
E
C
19
MZ-R900
Overall Adjustment Mode
· Configuration of overall adjustment
Overall adjustment mode . key (Title display) N key
· Overall Adjustment Mode (Title Display)
Remote commander LCD display
000 Assy**
: (Disc mark) At end of power supply adjustment: Outside lit At end of electrical offset adj.: Inside lit Note: On the set having microcomputer version 1.000, the disc mark is displayed on the remote commander LCD only. ** : Left side = MO overall adjustment information F*: MO overall adjustment completed 1*: Manual adjustment exists (overall adj. not completed) 0*: Not adjusted Right side = CD overall adjustment information F*: CD overall adjustment completed 1*: Manual adjustment exists (overall adj. not completed) 0*: Not adjusted
Protect switch ON
CD overall adjusting
All item OK
NG item exists or x key
CD overall adjustment NG
x key CD overall adjustment OK
x key
Protect switch OFF
> key
N key
MO overall adjusting
· Electrical Offset Adjusting Method Caution: The electrical offset adjustment must be made with no disc loaded. 1. Make sure that the power supply voltage is 3 V. 2. Set the test mode (see page 12). 3. Press the . or [VOL--] key to activate the overall adjustment mode.
Remote commander LCD display
NG item exists or x key
MO overall adjustment NG MO overall adjustment OK
000 Assy11
4. Press the [JOG LEVER $L% R] (up) key, or [DISPLAY] key on the remote commander.
Remote commander LCD display
x key
x key
[JOG LEVER $L% R] (up) key or [DISPLAY] key on the remote commander
x key
035 Ofst**
Electrical offset adjustment
5. Electrical offset adjustment is over, if the following display appears.
Remote commander LCD display
[JOG LEVER $L% r] (down) key or [PLAYMODE] key on the remote commander Power supply
x key adjustment auto item feed
000 OfstOK
[Test mode $display check mode%]
Note: Adjust the CD first, when performing adjustment.
20
MZ-R900
· Adjustment Method of Overall CD and MO Adjustment Mode 1. Setting the test mode (see page 12). 2. Press the . or [VOL --] key activates the overall adjustment mode.
Remote commander LCD display
· Overall CD and MO adjustment items 1. Overall CD adjustment items
Item No. 312 313 314 321 328 324 332 336 344 345 521 522 CD tracking error gain adjustment CD TWPP gain adjustment CD tracking error offset adjustment CD ABCD gain adjustment CD focus gain adjustment CD tracking gain adjustment CD two-axis sensitivity adjustment Description CD electrical offset adjustment
000 Assy11
3. Insert CD disc in the set, and press the . key to set the Overall CD Adjustment mode. Automatic adjustments are made.
Remote commander LCD display
XXX CD RUN
XXX: Item number for which an adjustment is being executed.
4. In case of CD overall adjustment NG, reset the NV (see page 17), then readjust from the temperature correction (see page 19).
Remote commander LCD display
000 *** NG
***: NG item number.
2. Overall MO adjustment items
Item No. 112 113 114 118 221 224 232 236 244 245 121 122 134 131 132 136 144 145 138 434 431 432 436 445 411 412 448 Low reflective CD tracking error gain adjustment Low reflective CD tracking error offset adjustment Low reflective CD ABCD level adjustment Low reflective CD focus gain adjustment Low reflective CD tracking gain adjustment MO tracking error gain adjustment MO TON offset adjustment MO TWPP gain adjustment MO double speed read TWPP offset adjustment MO ABCD gain adjustment MO focus gain adjustment MO tracking gain adjustment MO RF gain adjustment MO write TWPP gain adjustment MO write TWPP offset adjustment MO tracking error offset adjustment MO write ABCD gain adjustment MO write tracking gain adjustment MO normal speed read TWPP offset adjustment MO tracking error offset adjustment 20 sec full recording Description
5. If OK through the overall CD adjustments, then perform overall MO adjustments.
Remote commander LCD display
MO electrical offset adjustment
000 CD OK
6. Insert MO disc in the set, and press the > key to set the Overall MO Adjustment mode. Automatic adjustments are made.
Remote commander LCD display
XXX MO RUN
XXX: Item number for which an adjustment is being executed.
7. In case of MO overall adjustment NG, reset the NV (see page 17), then readjust from the temperature correction (see page 19).
Remote commander LCD display
000 *** NG
***: NG item number.
8. If OK through the overall MO adjustments, press the x key to return to the test mode and terminate the Overall Adjustment mode.
Remote commander LCD display
000 MO OK
21
MZ-R900
Resume Clear
Perform the Resume clear when all adjustments completed. · Resume Clear Setting Method 1. Select the manual mode of the test mode, and set item number 043 (see page 13).
Remote commander LCD display
7. Press the X key. (0D58 is blinking)
Remote commander LCD display
023 0D581E
1E:Adjusted value
043 Resume CC
2. Press the X key.
Remote commander LCD display
8. Press the [VOL+] key once to change the blinking portion to 0D59.
Remote commander LCD display
023 0D5900
00:Adjusted value
043 Res***
Resume clear complete
043 ResClr
3. Press the x key to return to the test mode (display check mode).
9. Press the x key. (00 is blinking) 10. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes B2.
Remote commander LCD display
023 0D59B2
B2:Adjusted value
Patch Data Rewriting When Nonvolatile Memory was Replaced
On this set, if the nonvolatile memory was replaced, the modified program data must be written to the nonvolatile memory. In such a case, write the modified data that meets the microcomputer version following the procedure provided below. · Modified Data Writing Method (version 1.000) 1. Select the manual mode of the test mode, and set item number 022 (see page 13).
Remote commander LCD display
11. Press the X key. (0D59 is blinking) 12. Press the [VOL+] key once to change the blinking portion to 0D5E.
Remote commander LCD display
023 0D5E00
00:Adjusted value
022 PatClr CC
2. Press the X key to initialize the patch data. (The modified data writing is over, if the adjusted value changes to DD)
Remote commander LCD display
13. Press the x key. (00 is blinking) 14. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 8B.
Remote commander LCD display
023 0D5E8B
8B:Adjusted value
022 ***SDD
DD:Adjusted value
3. Press the N key or > key to set item number 023.
Remote commander LCD display
15. Press the X key. (0D5E is blinking) 16. Press the [VOL+] key once to change the blinking portion to 0D5F.
Remote commander LCD display
023 Patch00
00:Adjusted value
023 0D5F00
00:Adjusted value
4. Press the [VOL+] key once to change the adjusted value to 01. 5. Press the [DISPLAY] key on the remote commander for several seconds (about 3 seconds) to activate the patch data write mode. (The following display will appear where 00 is blinking)
Remote commander LCD display
17. Press the x key. (00 is blinking) 18. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 20.
Remote commander LCD display
023 0D5800
00:Adjusted value
023 0D5F20
20:Adjusted value
6. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 1E.
Remote commander LCD display
19. Press the X key. (0D5F is blinking)
023 0D581E
1E:Adjusted value
22
MZ-R900
20. Press the [VOL+] key once to change the blinking portion to 0D60.
Remote commander LCD display
34. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 20.
Remote commander LCD display
023 0D6000
00:Adjusted value
023 0D6520
20:Adjusted value
21. Press the x key. (00 is blinking) 22. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 08.
Remote commander LCD display
35. Press the X key. (0D65 is blinking) 36. Press the [DISPLAY] key on the remote commander for several seconds (about 3 seconds) to exit the patch data write mode (to return to the manual mode display in the test mode).
Remote commander LCD display
023 0D6008
08:Adjusted value
023 Patch01
01:Adjusted value
23. Press the X key. (0D60 is blinking) 24. Press the [VOL+] key once to change the blinking portion to 0D61.
Remote commander LCD display
37. Press the X key to write the modified data. (The adjusted value changes to CC) 38. The modified data writing is over, if the adjusted value changes to DD.
Remote commander LCD display
023 0D6100
00:Adjusted value
023 ***SDD
DD:Adjusted value
25. Press the x key. (00 is blinking) 26. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes A1.
Remote commander LCD display
39. Turn the power off. · Modified Data Writing Method (version 1.100) 1. Select the manual mode of the test mode, and set item number 022 (see page 13).
Remote commander LCD display
023 0D61A1
A1:Adjusted value
022 PatClr CC
2. Press the X key to initialize the patch data. (The modified data writing is over, if the adjusted value changes to DD)
Remote commander LCD display
27. Press the X key. (0D61 is blinking) 28. Press the [VOL+] key once to change the blinking portion to 0D62.
Remote commander LCD display
023 0D6200
00:Adjusted value
022 ***SDD
DD:Adjusted value
3. Press the N key or > key to set item number 023.
Remote commander LCD display
29. Press the x key. (00 is blinking) 30. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 04.
Remote commander LCD display
023 Patch00
00:Adjusted value
023 0D6204
04:Adjusted value
4. Press the [VOL+] key once to change the adjusted value to 01. 5. Press the [DISPLAY] key on the remote commander for several seconds (about 3 seconds) to activate the patch data write mode. (The following display will appear where 00 is blinking)
Remote commander LCD display
31. Press the X key. (0D62 is blinking) 32. Press the [VOL+] key once to change the blinking portion to 0D65.
Remote commander LCD display
023 0D5C00
00:Adjusted value
023 0D6500
00:Adjusted value
6. Press the X key. (0D5C is blinking) 7. Press the [VOL+] key once to change the blinking portion to 0D5D.
Remote commander LCD display
33. Press the x key. (00 is blinking)
023 0D5D00
00:Adjusted value
23
MZ-R900
8. Press the x key. (00 is blinking) 9. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes AA.
Remote commander LCD display
23. Press the [VOL+] key once to change the blinking portion to 0D65.
Remote commander LCD display
023 0D6500
00:Adjusted value
023 0D5DAA
AA:Adjusted value
10. Press the X key. (0D5D is blinking) 11. Press the [VOL+] key once to change the blinking portion to 0D5E.
Remote commander LCD display
24. Press the x key. (00 is blinking) 25. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 1C.
Remote commander LCD display
023 0D651C
1C:Adjusted value
023 0D5E00
00:Adjusted value
12. Press the x key. (00 is blinking) 13. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 04.
Remote commander LCD display
26. Press the X key. (0D65 is blinking) 27. Press the [VOL+] key once to change the blinking portion to 0D66.
Remote commander LCD display
023 0D6600
00:Adjusted value
023 0D5E04
04:Adjusted value
14. Press the X key. (0D5E is blinking) 15. Press the [VOL+] key to change the blinking portion to 0D61.
Remote commander LCD display
28. Press the x key. (00 is blinking) 29. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 03.
Remote commander LCD display
023 0D6100
00:Adjusted value
023 0D6603
03:Adjusted value
16. Press the x key. (00 is blinking) 17. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 20.
Remote commander LCD display
30. Press the X key. (0D66 is blinking) 31. Press the [VOL+] key to change the blinking portion to 0D68.
Remote commander LCD display
023 0D6800
00:Adjusted value
023 0D6120
20:Adjusted value
18. Press the X key. (0D61 is blinking) 19. Press the [VOL+] key to change the blinking portion to 0D64.
Remote commander LCD display
32. Press the x key. (00 is blinking) 33. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 80.
Remote commander LCD display
023 0D6400
00:Adjusted value
023 0D6880
80:Adjusted value
20. Press the x key. (00 is blinking) 21. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes F4.
Remote commander LCD display
34. Press the X key. (0D68 is blinking) 35. Press the [VOL+] key once to change the blinking portion to 0D69.
Remote commander LCD display
023 0D6900
00:Adjusted value
023 0D64F4
F4:Adjusted value
36. Press the x key. (00 is blinking)
22. Press the X key. (0D64 is blinking)
24
MZ-R900
37. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 09.
Remote commander LCD display
51. Press the [VOL+] key to change the blinking portion to 0D72.
Remote commander LCD display
023 0D7200
00:Adjusted value
023 0D6909
09:Adjusted value
38. Press the X key. (0D69 is blinking) 39. Press the [VOL+] key to change the blinking portion to 0D6C.
Remote commander LCD display
52. Press the x key. (00 is blinking) 53. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 05.
Remote commander LCD display
023 0D6C00
00:Adjusted value
023 0D7205
05:Adjusted value
40. Press the x key. (00 is blinking) 41. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes F6.
Remote commander LCD display
54. Press the X key. (0D72 is blinking) 55. Press the [VOL+] key once to change the blinking portion to 0D73.
Remote commander LCD display
023 0D6CF6
F6:Adjusted value
023 0D7300
00:Adjusted value
42. Press the X key. (0D6C is blinking) 43. Press the [VOL+] key once to change the blinking portion to 0D6D.
Remote commander LCD display
56. Press the x key. (00 is blinking) 57. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes D3.
Remote commander LCD display
023 0D6D00
00:Adjusted value
023 0D73D3
D3:Adjusted value
44. Press the x key. (00 is blinking) 45. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 1C.
Remote commander LCD display
58. Press the X key. (0D73 is blinking) 59. Press the [VOL+] key once to change the blinking portion to 0D74.
Remote commander LCD display
023 0D6D1C
1C:Adjusted value
023 0D7400
00:Adjusted value
46. Press the X key. (0D6D is blinking) 47. Press the [VOL+] key once to change the blinking portion to 0D6E.
Remote commander LCD display
60. Press the x key. (00 is blinking) 61. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes F8.
Remote commander LCD display
023 0D6E00
00:Adjusted value
023 0D74F8
F8:Adjusted value
48. Press the x key. (00 is blinking) 49. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 03.
Remote commander LCD display
62. Press the X key. (0D65 is blinking) 63. Press the [VOL+] key once to change the blinking portion to 0D75.
Remote commander LCD display
023 0D6E03
03:Adjusted value
023 0D7500
00:Adjusted value
50. Press the X key. (0D6E is blinking)
64. Press the x key. (00 is blinking)
25
MZ-R900
65. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 1C.
Remote commander LCD display
79. Press the [DISPLAY] key on the remote commander for several seconds (about 3 seconds) to exit the patch data write mode (to return to the manual mode display in the test mode).
Remote commander LCD display
023 0D751C
1C:Adjusted value
023 Patch 01
01:Adjusted value
66. Press the X key. (0D75 is blinking) 67. Press the [VOL+] key once to change the blinking portion to 0D76.
Remote commander LCD display
80. Press the X key to write the modified data. (The adjusted value changes to CC) 81. The modified data writing is over, if the adjusted value changes to DD.
Remote commander LCD display
023 0D7600
00:Adjusted value
023 ***SDD
DD:Adjusted value
68. Press the x key. (00 is blinking) 69. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 03.
Remote commander LCD display
82. Turn the power off. · Modified Data Writing Method (version 1.200 and later) 1. Select the manual mode of the test mode, and set item number 022 (see page 13).
Remote commander LCD display
023 0D7603
03:Adjusted value
022 PatClr CC
2. Press the X key to initialize the patch data. (The modified data writing is over, if the adjusted value changes to DD)
Remote commander LCD display
70. Press the X key. (0D76 is blinking) 71. Press the [VOL+] key to change the blinking portion to 0D78.
Remote commander LCD display
023 0D7800
00:Adjusted value
022 ***SDD
DD:Adjusted value
3. Turn the power off.
72. Press the x key. (00 is blinking) 73. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 01.
Remote commander LCD display
023 0D7801
01:Adjusted value
74. Press the X key. (0D78 is blinking) 75. Press the [VOL+] key once to change the blinking portion to 0D79.
Remote commander LCD display
023 0D7900
00:Adjusted value
76. Press the x key. (00 is blinking) 77. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes E0.
Remote commander LCD display
023 0D79E0
E0:Adjusted value
78. Press the X key. (0D79 is blinking)
26
MZ-R900 SECTION 6 DIAGRAMS
6-1. BLOCK DIAGRAM SERVO Section
HR601 OVER WRITE HEAD OVER WRITE HEAD DRIVE Q604, 605 35 HB EFM PRE DRIVER EFM CLK H-BRIDGE PRE DRIVER VRECIN2 7 4 VRECO B+ OVER WRITE HEAD DRIVE IC601 (1/2)
· SIGNAL PATH : PLAYBACK : REC (ANALOG IN) : REC (DIGITAL IN)
OPTICAL PICK-UP BLOCK (LCX-4R)
33 M603 OVER WRITE HEAD UP/DOWN 41 38
HA OUTA OUTB
RF AMP, FOCUS/TRACKING ERROR AMP IC501 4 VREF + IY IX JX JX JY JX JY IX IY IX A B
M
SYSTEM CONTROL (1/2)
37 VRECIN1 42 C1H 28 CHARGE PUMP 1 C1L 27 C2H CHARGE PUMP 2 31 38
1 2 3 199 198 197
RI FI
25 VREF
SW RECON OE
C2L
HD CON2 HD CON1
MODE3 MODE2 MODE1
IX JX JY A B C D A-C
33 29 28 41 42
37 RFI 44 PEAK 45 BOTM 46 ABCD 47 FE 56 TE 74 ADIP 78 APCREF 49 VC 12 VREF MON 217 OFTRK 221 XRF RST
EFMD
LD
2-AXIS DEVICE (FOCUS)
(TRACKING) TRK FCS+ FCS TRK FCS+ FCS
SLD 1 MON
SLD 2 MON
CPWO
55
56
CLV MON W
CLV MON U
CLV MON V
CPUO
CPVO
+
MON
+
D
+
C
+
A BC D
+ + + + LD-A AUTOMATIC POWER CONTROL Q501 S0 S1 TRK+ TRK+ 8 9 10 11 12 14 5 6 IY RF OUT PEAK /BOTM PEAK BOTM ABCD FE TE RF AMP, FOCUS ERROR, TRACKING ERROR 13 D-C 7 18 PD-NI 1 ADIP IN 44 TPP/WPP ADIP 21 PD-I 19 APC VC 31 OFTRK 26 20 PD-O RESET 25 SERIAL INTERFACE S-MONITER SBUS 23 SCK 24 S-MON 43 160 SSB DATA 161 SSB CLK 9 S MON TRK+ TRK FCS+ FCS 194 PD S0 195 PD S1 M602 (SLED)
5 6 201 200 105 DIN1
DIN1 62
A B C
(Page28)
SYSTEM CONTROLLER, DIGITAL SIGNAL PROCESSOR, 16M BIT D-RAM IC801 (1/3)
ADDT 68
ADDT
(Page 28)
DADT 67
DADT
(Page 28)
CLK
D
(Page 29)
FOCUS/TRACKING COIL DRIVE, SPINDLE/SLED MOTOR DRIVE IC551 FO3 33 RO3 35 FO1 10 RO1 8 FI3 25 RI3 24 FI1 19 RI1 18
TRACKING COIL DRIVE FOCUS COIL DRIVE
81 TFDR 80 TRDR 82 FFDR 83 FRDR 233 SLD MON 96 SLDR 98 SLDV 97 SFDR 99 SLDW 102 SLCW SPINDLE SERVO DRIVE SWITCH IC805 166 SPDL AUX PWM 88 SPFD/SPVS/PWM3
M
14 42 12 41 29 40 31 39 CPA0 38 CPB0 37
FO2 CPAIP RO2 CPAIM FO4 CPBIP RO4 CPBIM SLED VOLTAGE MONITER
FI2
17
SLED MOTOR DRIVE
RI2 16 PWMI4 20 FI4 26 RI4 27
SLD1 MON SLCU 100 SLD2 MON SLCV 101
PWM
5
48 53 46 52 U M601 (SPINDLE) W V
UO CPUI VO CPVI SPINDLE MOTOR DRIVE
UI VI WI
4 3 2
223 SPDL MON 87 SPDU SPCU 93 89 SPDV SPCV 94 90 SPDW SPCW 95 CLV MON W CLV MON V CLV MON U
WO 44 CPWI 51 COM 54 SPINDLE VOLTAGE MONITOR BIAS
OF
6
220 XRST MTR DRV
1
VREF
E
(Page 29)
27
27
MZ-R900
6-2.
BLOCK DIAGRAM AUDIO Section
OPTICAL RECEIVER B+ SWITCH Q302
VIF B+ DIN1
(Page 27)
A
J301 LINE IN (OPT)
(LINE IN JACK)
(Page 27)
B
ADDT
15
SDTO
A/D CONVERTER & HPF
GAIN AMP
LIN2 6 LIN1 4 RIN2 7 RIN1 5
MIC AMP IC303 16 OUT2 IN2 2
J303 MIC (PLUG IN POWER)
13
OUT1
IN1 STBY
11 5
REGULATOR A/D, D/A CONVERTER IC301 4 GV
AUDIO I/F CONTROL
HEADPNONE AMP IC302 LOUT1 DADT SDTI BCLK LRCK CDTI CCLK CSN SSB D/A CONVERTER 26 27 OPGAL GAIN AMP ROUT2 28 1 OPGAR ROUT2 3 1 R-IN ROUT GA-R LOUT2 2 3 L-IN LOUT GA-L 10 9 F801 VC B+
J302 i/LINE OUT
(Page 27)
C
16 17 20 SDO0 SCK0 21 22 23 25
12 13
(Page 29)
G
SDO0, SDI0, SCK0
RVDD CDWM 2V DTCK KEY-R CDWM DATA RGND
CONTROL REGISTER I/F
CLOCK DIVIDER
MCLK
19 MUTING
MUTE BEEP
HP/LINE SWITCH
HP/L
14
15
16
70
XBCK
69
LRCK
71
FS256
215 192 191 2 193
XOPT CTL XJAC DET OPT DET MIC SENSE XMIC DET
183
BEEP
186
XMUTE
178 AOUT SEL TSB SLV CHK 210 TSB SLV VDD RMC DTCK TSB SLVI TSB SLVO 143 142 144 145 TSB SLAVE DETECT Q803 RMC KEY
SDI0 SDO0 SCK0
XCS NV
179 SIO 180 SO0 181 SCK0
SYSTEM CONTROLLER, DIGITAL SIGNAL PROCESSOR 16M BIT D-RAM IC801 (2/3)
OSCO OSCI
F
(Page 29)
219
24
25
SDO0 SCK0
SDIO
X801 45.1584MHz
· SIGNAL PATH : PLAYBACK : REC (ANALOG IN) : REC (DIGITAL IN)
4 3 2 1
DO DI SK XCS
EEPROM IC804
28
28
6-3.
(Page 28)
BLOCK DIAGRAM KEY CONTROL/DISPLAY/POWER SUPPLY Section
F
RMC KEY 7 4 56 52 54 55 1 2 3 5 53 VSTB SYSTEM CONTROLLER (IC801) B+ VL LASER APC CIRCUIT B+ L801 6 L904 10 VRMC XWK3 CLK CLK SEL FFCLR SLEEP VLON XWK1 XWK2 XWK4 VAIFON VSTB VLO VB HEADPHONE AMP (IC302), MOTOR/COIL DRIVER (IC551) B+
(Page 27)
D
CLK
RMC KEY FS4 CLK SEL FFCLR SLEEP VLON WK DET REC KEY HALF LOCK SW
20 86 169 236 235 234 17 18 19 S805 OPEN
SYSTEM CONTROL POWER CONTROL IC901
SYSTEM CONTROLLER IC801 (3/3)
VB VC REGURATOR BANDGAP REFERENCE STEP-UP PRE DRIVER & PWM VL VL 9 10 D902 SWITCHING REGURATOR L2 12 L2 16 VG MOTOR/COIL DRIVER (IC551) B+ L902
VL MON 15 (Page 27)
E G
VRFF
49
VREF
(Page 28)
SDO0, SDI0, SCK0 VD SYSTEM CONTROLLER (IC801) B+ VIF A/D, D/A CONVERTER (IC301), SYSTEM CONTROLLER (IC801), EEPROM (IC804) B+ VA A/D, D/A CONVERTER (IC301), SYSTEM CONTROLLRE (IC801) B+ VC MIC AMP (IC303), RF AMP (IC501), MOTOR/COIL DRIVER (IC551), REMOTE CONTROL CIRCUIT B+ VL PWM 164 1 PAUSE KEY VC PWM 165 REC REC LED 208 REC LED XRST 8 SE1 KEY 1 SE1 KEY 2 x , T MARK , REC MODE , END SEATCH , + VOL , (JOG LEVER L/R) BACKUP + S801 HOLD OFF HOLD S802 SYNCHRO REC ON OFF VIF B+ VB B+ VIF B+ S806 OPEN/CLOSE DETECT S804 BATTERY IN DETECT S803 PROTECT DETECT 170 OPEN CLOSE SW AUXI 48 VREC PWM 163 13 SET KEY1 14 SET KEY2 VRECO OVER WRITE HEAD DRIVE CIRCUIT B+ NOISE FILTER NOISE FILTER
DTC2 24 25 DTC1 VDFB 39 VD 44 VIFFB 38 VIF 42
L905 D903
RF2
LCD
LCD DRIVER & REAL TIME CLOCK
SD0 SI0 SCK RST STB CS CS RTC XWK1
SDO0 SDI0 SCK0 187 206 205 216 LCD RST AUX LCD STB XCS LCD CS RTC
STEP-UP DC/DC CONVERTER SERIES PASS REGULATOR
VG
19 LG 18
VC2
45
VAFB 40 VA 41 D904 35 VCO SWITCH L903 L901 VOUT 26 27 46 47 INM1 RF1 XRST CRST RESET SIGNAL GENERATOR DTC1 STEP-UP PRE DRIVER & PWM SWITCHING REGULATOR 33 D901 VC REGULATOR VC 36 34
REC
REC
RESET SWITCH Q801 X PAUSE
VIF B+ VB B+
22 23
INM2 RF2
L1 32 L1 28 VB 50
L602
VRECO1 10 VRECO2 15 VREC INM1 +
SWITCHING REGULATOR
L1 1 11 L1 2 14
L601 B+ SWITCH Q603
DRY BATTERY SIZE "AA" IEC DESIGNATION R6 1PC. 1.5V
227 XHOLD SW
L603 16 19
SWITCH
228 SYNC REC
NOISE FILTER
20
RF1
STEP-UP DOWN DW BT 22 PRE DRIVER DW TP & 21 PWM VIO 8 VC2 26 VC 9 RF2 49 INM2 48 INP2 47 RS CHG SW 46 45
VIF B+ VC B+ CHARGE CONTROL Q602 (2/2)
CHARGE D603
(BATTERY CASE)
DVDD UNREG SWITCH & LCD MUDULE UNIT
POWER CONTROL IC601 (2/2)
BATTE