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MDX-595
MDX-595
MINIDISC RECORDER
MDX-595 SERVICE MANUAL
NATURAL SOUND MINIDISC RECORDER MDX-595
POWER EJECT REC
TIMER DIGITAL ANALOG
OFF
REC LEVEL REC LEVEL PHONES LEVEL
REC PLAY
RANDOM S/F REPEAT A-B DISPLAY SCROLL TITLE CHARA. DELETE EDIT SET SEARCH INPUT
CANCEL ENTER
0 10 0 10
IMPORTANT NOTICE
This manual has been provided for the use of authorized YAMAHA Retailers and their service personnel.
It has been assumed that basic service procedures inherant to the industry, and more specifically YAMAHA Products, are already
known and understood by the users, and have therefore not been restated.
WARNING: Failure to follow appropriate service and safety procedures when servicing this product may result in personal
injury, destruction of expensive components and failure of the product to perform as specified. For these reasons,
we advise all YAMAHA product owners that all service required should be performed by an authorized
YAMAHA Retailer or the appointed service representative.
IMPORTANT: The presentation or sale of this manual to any individual or firm does not constitute authorization, certification or
recognition of any applicable technical capabilities, or establish a principle-agent relationship of any form.
The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research, engineering, and
service departments of YAMAHA are continually striving to improve YAMAHA products. Modifications are, therefore, inevitable
and specifications are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact
the distributor's Service Division.
WARNING: Static discharges can destroy expensive components. Discharge any static electricity your body may have accumu-
lated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss).
IMPORTANT: Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the unit.
s CONTENTS
TO SERVICE PERSONNEL . . . . . . . . . . . . . . . . . . 1~2 IC DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25~34
REAR PANELS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . 35~37
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 TEST POINT WAVEFORMS . . . . . . . . . . . . . . . . 38~39
INTERNAL VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 PRINTED CIRCUIT BOARD . . . . . . . . . . . . . . . . 40~47
DISASSEMBLY PROCEDURES . . . . . . . . . . . . . . . 4~8 SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . 48~51
ADJUSTMENT & TEST MODE . . . . . . . . . . . . . . . 9~16 PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52~64
SPECIAL TEST MODE . . . . . . . . . . . . . . . . . . . . . . . 17 GREASE APPLICATION DIAGRAM . . . . . . . . . . . . 65
ERROR DISPLAY . . . . . . . . . . . . . . . . . . . . . . . . 18~19 REMOTE CONTROL TRANSMITTER . . . . . . . . . . . 66
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . 20~24
100671
MDX-595 MDX-595
s TO SERVICE PERSONNEL
1. Critical Components Information.
Components having special characteristics are marked Z AC LEAKAGE
and must be replaced with parts having specifications equal WALL EQUIPMENT TESTER OR
OUTLET UNDER TEST EQUIVALENT
to those originally installed.
2. Leakage Current Measurement (For 120V Models Only).
When service has been completed, it is imperative to verify
that all exposed conductive surfaces are properly insulated
from supply circuits.
INSULATING
q Meter impedance should be equivalent to 1500 ohm shunted TABLE
by 0.15µF.
q Leakage current must not exceed 0.5mA.
q Be sure to test for leakage with the AC plug in both
polarities.
CAUTION: USE OF CONTROLS OR ADJUSTMENTS Laser Diode Properties
OR PERFORMANCE OF PROCEDURES Material: GaAIAs
OTHER THAN THOSE SPECIFIED
Wavelength: 785 nm
HEREIN MAY RESULT IN HAZARDOUS
RADIATION EXPOSURE. Pulse time: Read mode ...0.8 mW Continuous
Write mode ...max 10 mW 0.5S
THE MINI DISC RECORDER SHOULD NOT BE min cycle 1.5S
ADJUSTED OR REPAIRED BY ANYONE EXCEPT
Repetition
PROPERLY QUALIFIED SERVICE PERSONNEL.
WARNING: CHEMICAL CONTENT NOTICE!
The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or
plastic (where applicable) components may also contain traces of chemicals found by the California Health and
Welfare Agency (and possibly other entities) to cause cancer and/or birth defects or other reproductive harm.
DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR
ANY REASON WHATSOEVER!
Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes
or expose eyes to solder/flux vapor!
If you come in contact with solder or components located inside the enclosure of this product, wash your hands
before handling food.
G, B models
G, B models
1
MDX-595
MDX-595
English
THIS PRINTING (SEE POSITION SHOWN IN THE ILLUSTRATION) INFORMS THE USER THAT THE APPARATUS
CONTAINS A LASER COMPONENT.
THIS LABEL (SEE POSITION SHOWN IN THE ILLUSTRATION) WARNS THAT ANY FURTHER PROCEDURE WILL
BRING THE USER INTO EXPOSURE WITH THE LASER BEAM.
CAUTION : USE OF CONTROLS, ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE
SPECIFIED HEREIN, MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.
Swedish
DENNA MÄRKNING (SE FIGUR) UPPLYSER OM ATT DET I APPARATEN INGÅR EN LASERKOMPONENT AV
TYP KLASS 1.
VARNINGSMÄRKNING (SE FIGUR) FÖR STRÅLNING. INGREPP I APPARATEN BÖR ENDAST FÖRETAGAS AV
FACKMAN MED KÅNNEDOM OM LASER. APPARATEN INNEHÄLLER EN LASERKOMPONENT SOM AVGER
STRÅLNING ÖVERSTIGANDE GRÄNSEN FÖR LASERKLASS 1.
VARNING : OSYNLIG LASERSTRÅLNING NÄR DENNA DEL ÄR ÖPPNAD OCH SPÄRREN ÄR URKOPPLAD.
STIRRA EJ I STRÅLEN OCH BETRAKTA EJ STRÅLEN GENOM OPTISKT INSTRUMENT.
Danish
DETTE MÆRKAT ER ANBRAGT SOM VIST I ILLUSTRATIONEN FOR AT ADVARE BRUGEREN OM AT AP-
PARATET INDEHOLDER EN LASERKOMPONENT.
DETTE MÆRKAT OM LASEREN ER ANBRAGT PÅ APPARATET SOM EN OPLYSNING OM AT APPARATET
INDEHOLDER ET LASERKOMPONENT.
ADVARSEL : USYNLIG LASERSTRÅLING VED ÅBNING, NÅR SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION.
SE IKKE IND I STRÅLEN-HELLER IKKE MED OPTISKE INSTRUMENTER.
ADVARSEL : USYNLIG LASERSTRÅLING NÅR DEKSEL ÅPNES OG SIKKERHEDSLÄS BRYTES. STIRR IKKE INN
I STRÅLEN ELLER SE DIREKTE MED OPTISKE INSTRUMENTER.
Finnish
VARO! :
AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA NÄKYMÄTTÖMÄLLE LASER-SÄTEILYLLE.
ÄLÄ TUIJOTA SÄTEESEEN ÄLÄKÄ KATSO SITÄ OPTISEN LAITTEEN LÄPI.
s REAR PANELS
w U model
w G, B models
2
MDX-595 MDX-595
s SPECIFICATIONS
Digital audio system Outputs
System LINE OUT (PLAY)
MiniDisc digital audio system Type: pin jack
Disc Standard output level: 2.0 ± 0.5 Vrms
MiniDisc DIGITAL OUT (OPTICAL)
Recording method Type: square optical connector jack
Magnetic field variation overwrite PHONES
Reading method Standard output level
Non-contact optical pickup (using semiconductor laser) (Input 150 ohms shorted, 20 dB): 300 ± 60 mV
Laser
Semiconductor laser GENERAL
Laser Diode Properties Power Supplies
Material: GaAIAs U model 120 V, 60 Hz
Wavelength: 785 nm G, B models 230 V, 50 Hz
Pulse time: Power Consumption
Read mode ... 0.8 mW Continuous 20 W
Write mode ... max 10 mW 0.5S Dimensions (W x H x D)
min cycle 1.5S 435 x 96 x 288 mm (17-1/8" x 3-3/4" x 11-5/16")
Repetition Weight
Record/playback time 4.1 kg (9 lbs. 1 oz.)
Max. 80 minutes Accessories
80 minutes (stereo) Remote Control.... 1
160 minutes (mono) Audio cord... 2
Revolutions Optical cord... 1
Approx. 400~900 rpm (CLV) Batteries (size AA, R6, UM-3).... 2
Error Correction
ACIRC (Advanced Cross Interleave Reed-solomon Code) Specifications subject to change without notice.
Sampling frequency
44.1 kHz (32 kHz and 48 kHz signals converted to 44.1 kHz
U : USA model
for recording)
B : British model
Coding
G : European model
ATRAC (Adaptive TRansform Acoustic Coding)
* US and foreign patents licensed from Dolby Laboratories
Modulation system
Licensing Corporation.
EFM (Eight-to-Fourteen Modulation)
Number of channels (1/4")
2 (stereo) or 1 (mono, for extended recording)
6.5
Frequency Response
5 ~ 20,000 Hz ±0.5 dB
Signal-to-Noise Ratio
More than 99 dB during playback
266.5(101/2")
288(115/16")
Wow and Flutter
Below measurable limit
Inputs
LINE IN (REC)
Type: pin jack
(9/16")
Input impedance: greater than 56 k-ohms
15
435(171/8")
Standard input level: 300 mV
DIGITAL IN (OPTICAL) 1/2
(31/8")
(33/4")
Type: square optical connector jack
80
96
(5/8")
16
Units : mm (inch)
3
MDX-595
MDX-595
s INTERNAL VIEW
q POWER TRANSFORMER q w e
w P.C.B. DIGITAL
e P.C.B. MAIN (1)
r POWER SWITCH
t MD MECHANISM UNIT
y P.C.B. MAIN (2)
CB1 CB6
CB5
CB401 CB7
r t y
s DISASSEMBLY PROCEDURES
(Remove parts in disassembly order as numbered.)
1. Removal of Top Cover 3. Removal of MD Mechanism Unit
a. Remove 4 screws ( q ) and 3 screw ( w ) in Fig. 1. a. Remove 1 connector.
CB1
2. Removal of Front Panel b. Remove 4 screws ( t ) in Fig. 1.
a. Remove 4 connectors. c. Remove 4 screws ( y ) in Fig. 2.
CB5, CB6, CB7, CB401
d. Remove 2 screws ( u ) in Fig. 2.
b. Remove 3 screws ( e ) and 2 screws ( r ) in Fig. 1. e. Remove 2 screws ( i ) in Fig. 2.
Top Cover
i Shield Case (Top)
q w
MD Mechanism Unit
i
t
MD Mechanism Unit
q
r t
u
Shield Case (Bottom)
u
y
e
r
y
Front Panel Support (Mechanism)
Fig. 1
Fig. 2
4
MDX-595 MDX-595
Disassembly of MD Mechanical Unit
Remove the MD mechanical unit according to Steps 1 ~ 3 of the disassembly procedure (page 4).
Removal of MD Main P.C.B. (Fig. 3)
1. Remove 4 screws (Q1).
2. Remove 6 connectors (Q2).
( Q1 ) x 4
( Q2 ) x 1
1.7 x 3mm
Flexible P.C.B. for
MD Main P.C.B.
optical pickup (*1)
(Q2)x1
(*1) After pulling off the flexible P.C.B.
for the optical pickup from the ( Q2 ) x 1
connector, cover its end with
aluminum foil or the like which is ( Q2 ) x 3
electrically conductive so as to prevent
the optical pickup from being
damaged by static electricity.
Frame
Fig. 3
Removal of MD Mechanism (Fig.4) Removal of Magnetic Head (Fig.5)
1. Remove 4 screws (R1). 1. Remove a screw (A1).
Caution Caution
Almost the entire surface of the cartridge holder is a. When removing the magnetic head, hold its base and
coated with oil. When removing the mechanism, hold it do not touch the magnetic head itself or the leaf
at the rear end (where marked with arrows in the figure) spring.
and avoid touching the oiled surface. b. Place the magnetic head upside down.
c. Use special care so as not to cause any damage to
the magnetic head when installing it.
Cartridge Holder MD Mechanism
(A1)x1
ø1.7x5mm
Leaf Spring Magnetic Head
Black
MD Mechanism Sheet, Head
Gray
Gray
(R1)x4
Fig. 4 Fig. 5
ø1.7x8.9mm
5
MDX-595
MDX-595
Removal of Cartridge Holder (Fig.6)
1. Open the roller arm lever in the arrow direction and move the clamper lever to the rear.
2. With a +5V voltage (*2) applied to the red line side of the blue connector of the loading
motor, push the rack gear in the arrow direction until the cam plate lever clicks.
(*2) A +5V voltage can be obtained from the pluspol (D6.5/5V) of C3 and the ground
terminal of the Main P.C.B.
3. Remove a screw (B1 and B2, 1 each) from the holder arm and remove the cartridge
holder by moving it to the left.
Slider Lever
Cartridge Holder
Roller Arm Lever
Clamper (B1) x1
Lever Loading Ø1.7x5mm
Motor
C3 Pluspol (D6.5/5V)
Rack Gear
Cam Plate (B2) x1
Lever
Fig.6
Caution
Be careful so that oil does not get on the clamper lever
which contacts the roller of the roller arm lever.
Installation of Cartridge Holder
· To install the cartridge holder, the rack of the mechanism must be
lowered toward the rear.
· While pushing the roller arm lever outward, push in the slider lever.
· Apply a +5V voltage to the loading motor (until clicking sound is
heard) and push in the rack gear.
· With the slider lever and the rack gear installed as described above,
fit the cartridge holder as shown in the figure and tighten screws.
6
MDX-595 MDX-595
(E1)x1
Removal of Mechanism SW P.C.B. (Fig.7) Ø1.7x3mm
· Once the mechanism switch P.C.B. is removed, it will
(E1)x1
be necessary to perform "Adjustment of Lead-in Switch Ø1.7x9.5mm
Position". (See page 13.)
Mechanism SW P.C.B.
1. Remove 2 screws (E1) and then remove the Mecha-
nism SW P.C.B.
Installation of Mechanism SW P.C.B. Fig.7
· Set the mechanism to the eject mode by applying -5V
to the loading motor. (E1)x1
(E1)x1 Ø1.7x3mm
· Install the mechanism SW P.C.B. so that the boss fits
Ø1.7x9.5mm
in the hole in it.
· Push the lead switch on the mechanism SW P.C.B.
toward the optical pickup side (so that looseness in the
boss hole is eliminated).
· Tighten screws and apply thread lock.
· Measure the lead-in switch position. (See page 13.)
(Enter the result in EEPROM.) Lead-in switch
Mechanism SW P.C.B.
Removal of Sled Motor/Loading Motor (Fig.8)
(D1)x2
(D1)x2
1. Remove 4 screws (D1) and then remove the sled Ø1.7x2mm
Ø1.7x2mm
motor/loading motor.
Caution
Use care so as not to cause any damage to the gear.
(The damaged gear will cause abnormal noise to occur
while searching.)
Loading Motor
Sled motor
Fig. 8
7
MDX-595
MDX-595
Removal of Spindle Motor (Fig.9)
· Once the spindle motor is removed, it will be neces-
sary to perform "Pickup Rating". (See page 14.)
1. Remove 3 screws (C1).
2. Remove the spindle motor by moving it in the arrow
direction.
Caution
a. Be careful not to scratch the gear. Turn Table
(Scratched gear will produce noises during searching.)
b. As the turn-table is magnetized, keep foreign objects Spindle Motor
from being attracted.
(C1)x3
(C1)x1 Ø1.7x2.5mm
Ø1.7x2.1mm
Fig.9
(F1)x3
Removal of Optical Pickup Head (Fig.10 and Fig.11) Ø1.7x9.5mm
1. Remove 3 screws (F1).
Caution
Use care so as not to cause any damage to the gear. Optical Pickup Head
(The damaged gear will cause abnormal noise to occur
while searching.)
2. Remove a screw (F2).
The leaf spring (A) attached to the P.U. will be reused
when replacing the pickup. It is not supplied with the
optical pickup.
3. Using tweezers or the like, pull the PU shaft from the
base a little. Pull only enough to allow the pickup to
come off. If it is pulled off completely, the oil on the
shaft will be scraped off.
Be sure to keep oil on the shaft!
MD Guide (B)
Fig. 10
MD Guide (A)
Assembly of Optical Pickup
· When installing the pickup to the MD guide (A), be
sure to tighten the leaf spring (A) with it. Optical Pickup
· When installing the pickup to the MD mechanism, fit
PU Shaft
the pickup into the MD guide (B) first, match the boss
of the MD guide (A) and its hole in the chassis and
tighten them with a screw. Leaf Spring (A)
Fit the pickup into the MD guide (B) first Fig. 11
(F2)x1
Ø1.4x2.2mm
8
MDX-595 MDX-595
s ADJUSTMENT & TEST MODE
Preparation before Adjustment
q Test disc q Extension cable (see connection diagram on page 14.)
Type Test disc Type Part No.
High reflecting disc TDYS1 (SONY) [for reproduction] (P/No. TX945850)
1. Extension P.C.B. for servicing TX946230
Low reflecting disc Commercially available mini disc for recording
2. 2-pin extension connector for servicing TX946200
Low reflecting disc MMD-318 [for pre-adjustment] (P/No. AAX04890)
3. 6-pin extension connector for servicing TX946210
4. 5-pin flat cable for servicing TX946190
5. 28-pin flat cable for servicing TX946220
TEST MODE
1. How to set to the test mode
1) Press the POWER button while pressing the SET/ENTER button and the PLAY/PAUSE button.
Version of microprocessor on display (about 1 second)
t s m 1 3 * * e * *
Version of EEPROM protect data (from 01)
Version of microprocessor ROM (from 01)
"EJECT" on display
2) Load either a disc for reproduction or a disc for recording.
"AUT YOBI" on display
This completes setting to the test mode.
2. How to set to each mode
Every time the DISPLAY button is pressed, the mode changes. (For operation of each mode, refer to the section
describing each mode.)
->AUTO pre-adjustment -> AUTO adjustment -> RESULT preparation -> RESULT -> MANUAL pre-adjustment ->
MANUAL adjustment -> EEPROM setting
Caution) The AUTO pre-adjustment and AUTO adjustment modes are used for adjustment during servicing. Other modes
are used when checking the specific measured values and adjusted values or when changing the set value and the
adjusted value. Note that use of other modes will rewrite RAM and EEPROM.
3. How to cancel test mode
1) Finish the AUTO pre-adjustment and AUTO adjustment. ( "COMPLETE" appears on the display)
2) Press the REC button. ( "TEST END" appears on the display)
3) Eject the disc by pressing the EJECT button.
4) Turn off the power.
q When using a new combination of a mechanical pickup and an MD P.C.B. after a repair or for some other
reason, make sure to set to the TEST mode and perform AUTO pre-adjustment and AUTO adjustment accord-
ing to the following procedure.
1) Set to the TEST mode and perform AUTO pre-adjustment and AUTO adjustment.
2) Cancel the TEST mode by pressing the REC button. (Writing into EEPROM starts from here.)
3) Eject the disc by pressing the EJECT button.
4) Turn off the power.
9
MDX-595
MDX-595
Description of TEST modes
1. AUTO pre-adjustment mode Automatic pre-adjustment is performed. (Grating adjustment mode after this adjustment.)
[ _ AUT _ YOBI _ ] Adjusted values are output by using the interface.
2. AUTO adjustment mode Automatic adjustment is performed.
[ AUTO _ AJST _ ] Adjusted values are output by using the interface.
Continuous reproduction is performed. (Error rate on display, jump test)
3. RESULT preparation mode Not used (Do not use this function as it is not for servicing)
[ _ RST _ YOBI _ ]
4. RESULT mode (main adjustment) Not used (Do not use this function as it is not for servicing)
[ _ RESULT _ _ _ ]
5. MANUAL pre-adjustment mode Not used (Do not use this function as it is not for servicing)
[ _ MNU _ YOBI _ ]
6. MANUAL adjustment mode Not used (Do not use this function as it is not for servicing)
[ _ MNU _ AJST _ ]
7. EEPROM setting mode Various factors of the digital servo function are changed manually.
[ EEPROM _ SET ] Each servo function is turned on independently.
The voltage is measured at the temperature detect terminal and the standard value is set.
8. TEST-PLAY mode Continuous reproduction from the specified address is performed.
[ TEST _ PLAY _ ] C1 error rate is measured and ADIP error rate is measured.
9. TEST-REC mode Continuous recording from the specified address is performed.
[ TEST _ REC _ _ ]
10. INNER mode The position where the INNER switch is turned ON is measured.
[ _ _ INNER _ _ _ ]
11. EJECT mode To TEMP setting (of EEPROM setting)
[ _ _ EJECT _ _ _ ] To CONTROL setting (of EEPROM setting)
Laser power setting (record/reproduction power) is performed.
1. AUTO pre-adjustment mode Low reflecting disc (MMD-318) only
Step Setting method Remark Display
1 Set the Test mode to STOP. No disc is loaded. [ EJECT ]
2 Load a disc. Auto pre-adjustment menu [ LOADING ]
[ _ AUT _ YOBI _ ]
3 Press the SET/ENTER button once. Auto pre-adjustment is started after sliding to the innermost [ *** : _ _ _ _ _ _ ]
Grating adjustment is performed and track.
adjusted values are output. " *** " changes in the following order during automatic
Adjustment is completed. adjustment.
HAo -> RFg -> SAg -> SBg -> PTG -> PCH -> GTG -> GCH ->
RCG -> SEG -> RFG -> SAG -> HAO -> HEO -> TCO -> LAO
Proceed to Step 4 when adjustment is OK. [ _ COMPLETE _ ]
Proceed to Step 5 when adjustment is NG. [ Can't _ ADJ. ]
4 When adjustment is OK, press the The display returns to the AUTO pre-adjustment menu. [ _ AUT _ YOBI _ ]
DELETE/CANCEL button.
5 When adjustment is NG, press the There is an abnormality at the adjusted point such as HAo. [ Can't _ ADJ. ]
DELETE/CANCEL button. Refer to "Troubleshooting". (page 20)
10
MDX-595 MDX-595
2. AUTO adjustment mode
Step Setting method Remark Display
1 Set the TEST mode to STOP. No disc is loaded. [ EJECT ]
2 Load a disc. AUTO pre-adjustment menu [ LOADING ]
Press the DISPLAY button once. AUTO adjustment menu [ _ AUT _ YOBI _ ]
[ AUTO _ AJST _ ]
3 Press the SET/ENTER button once. Automatic pre-adjustment is started after sliding to the innermost [ *** : _ _ _ _ _ _ ]
Adjusted values are output. track.
Adjustment is completed. " *** " changes in the following order when a high reflecting disc
(disc for reproduction) is used.
PEG -> HAG
" *** " changes in the following order when a low reflecting disc
(disc for recording) is used.
PEG -> LAG -> GCG -> GEG -> LAG
Proceed to Step 4 when adjustment is OK. [ _ COMPLETE _ ]
Proceed to Step 5 when adjustment is NG. [ Can't _ ADJ. ]
4 When adjustment is OK, press the Continuous reproduction (bit section) [ s XXXX c YYYY ]
SET/ENTER button. (Address + C1 error display) [ a XXXX c YYYY ]
Continuous reproduction (group section)
(Address + C1 error display)
5 Press the INPUT button. Continuous reproduction (group section) [ a XXXX a YYYY ]
Press the DELETE/CANCEL button. (Address + ADIP error display) [ AUTO _ AJST _ ]
Display returns to the AUTO adjustment menu display.
6 When adjustment is NG, press the There is an abnormality at the adjusted point such as PEG. [ Can't _ ADJ. ]
DELETE/CANCEL button. Refer to "Troubleshooting". (page 20)
Note) *** : Adjustment name, XXXX: Address, YYYY: Measured value
8. TEST-PLAY mode
(Use this mode to check that the playback function is provided at the specified address.)
Step Setting method Remark Display
1 Load a disc. AUTO pre-adjustment menu [ _ AUT _ YOBI _ ]
2 Press the TITLE button. TEST-PLAY menu [ TEST _ PLAY _ ]
3 Press the INPUT button. ADDRESS setting (The initial value of the target address is displayed.) [ ADRES _ 0050 ]
Press the SET/ENTER button. Set the search output to "H" while searching and back to "L" when
continuous reproduction is started.
4 Continuous reproduction (bit section) (Address + C1 error display) [ s XXXX c YYYY ]
Continuous reproduction (group section) (Address + C1 error display) [ a XXXX c YYYY ]
5 Press the INPUT button. (Address + ADIP error display) [ a XXXX a YYYY ]
Continuous reproduction (group section)
6 Press the DELETE/CANCEL button. TEST-PLAY menu [ TEST _ PLAY _ ]
· Every time the TITLE button is pressed in the address setting mode, the address changes in the order of 0050-> 03C0 -> 0700 -> 08A0
-> 0050 -> --
· Pressing the DISPLAY button in the TEST-PLAY menu changes to the AUTO pre-adjustment menu.
11
MDX-595
MDX-595
9. TEST-REC mode
Use a disc for confirmation of recording function. (It is used to check the REC function at the specified address.)
Step Setting method Remark Display
1 Load a disc. AUTO pre-adjustment menu [ _ AUT _ YOBI _ ]
2 Press the TITLE button twice. TEST-REC menu [ TEST _ REC _ _ ]
3 Press the SET/ENTER button. ADDRESS setting (The initial value of the address is displayed.) [ a0050 _ pw ZZ ]
4 Press the SET/ENTER button. Set the search output to "H" while searching and back to "L" when
continuous reproduction is started.
Continuous recording [ a XXXX _ pw ZZ ]
5 Press the DELETE/CANCEL button. TEST-REC menu [ TEST _ REC _ _ ]
· Every time the TITLE button is pressed in the address setting mode, the address changes in the order of 0050-> 03C0 -> 0700 -> 08A0
-> 0050 -> --
· Pressing the DISPLAY button in the TEST-REC menu changes to the AUTO pre-adjustment menu.
10. INNER mode
Step Setting method Remark Display
1 Load a disc. AUTO pre-adjustment menu [ _ AUT _ YOBI _ ]
2 Press the CHARA. button. INNER menu [ _ _ INNER _ _ _ ]
3 Press the SET/ENTER button. INNER switch position is measured. [ s XXXX c YYYY ]
(Both SUBQ address and C1 error are displayed.)
4 Press the DELETE/CANCEL button. INNER menu [ _ _ INNER _ _ _ ]
· Pressing the DISPLAY button in the INNER menu changes to the AUTO pre-adjustment menu.
11. EJECT mode
Step Setting method Remark Display
1 EJECT status in the TEST mode EJECT menu (No disc is loaded.) [ _ _ EJECT _ _ _ ]
2 Press the INPUT button. Maximum power output status [ xpw _ _ _ _ _ _ _ ]
3 Press the INPUT button. Recording power output status [ rpw _ _ _ _ _ _ _ ]
4 Press the INPUT button. Reproduction power output status [ ppw _ _ _ _ _ _ _ ]
5 Press the TITLE edit button. To TEMP setting of EEPROM setting
(Refer to TEMP setting of EEPROM.)
6 Press the CHARA. button. To CONTROL setting of EEPROM setting
(Refer to CONTROL setting of EEPROM.)
7 Press the DELETE/CANCEL button. EJECT menu [ _ _ EJECT _ _ _ ]
q Confirmation of pick-up laser power
Recording and reproduction can be checked by using the laser power meter. However it should be used for checking only
because there is variation in its measurement.
When the measured value is excessively deviated from the reference value, replace the pick-up.
Reference value (measured at room temperature of 25 °C)
During reproduction (ppw) : 0.72 ± 0.1 mW
During recording : 5.5 ± 0.5 mW
Note : Be very careful when using the laser power meter. The laser beam would cause damage to your eye if exposed to it
directly.
12
MDX-595 MDX-595
q Lead-in switch position measurement mode
Load a TDYS1 disc for reproduction (high reflecting disc).
Note) Adjust the position of the lead-in switch to FF85 ~ FFD2.
1. Loosen 2 screws (A) fixing the mechanism switch P.C.B.
2. Retighten screws while pushing the mechanism switch P.C.B. in the arrow (<-) direction and then measure the
position of the lead-in switch again. After adjusting the position, tighten 2 screws (A) securely. (Fig.12)
Loosen 2 screws (A)
Note) Apply thread lock to 2 screws on the
P.C.B. after tightening them.
Lead-in switch
Mechanism SW P.C.B.
Fig.12
q Forced rotation of loading motor
It is possible to force the loading motor to rotate by turning the jog dial when the microprocessor version (tsm13**e**)
of the test mode or EJECT appears on display. (This is used when the disc cannot be ejected.)
* To obtain the microprocessor version on display When a disc is loaded, " _ AUT _ YOBI _ " appears on display. Press
the DELETE/CANCEL key in this state, and the microprocessor version will appear.
q Confirmation of magnetic head installation position
· After replacing the magnetic head and the optical pick-up, be
Magnetic head
sure to confirm their installation positions.
Circumferentical direction
· To facilitate adjustment of their installation positions, bring the
Objective lens
optical pick-up to the center position and follow the procedure
described below. Radial direction Push down with a finger.
1.Push down the up-shift arm of the magnetic head with a finger to
raise the magnetic head.
2.Looking at the unit from above, check if the magnetic head
matches with the optical pick-up objective lens.
3.Check to ensure that the magnetic head moves up and down
smoothly.
Magnetic head
13
MDX-595
MDX-595
MECHANISM ADJUSTMENT
When making adjustment, be sure to connect an extension cable for servicing and an expansion P.C.B. as shown in
Fig.16.
1
3
1. Optical pickup rating inspection method 2
(Externally attached)
GND (TP1125) Oscilloscope a
IC1101 No.43 pin
100K
EOUT (TP1129)
IC1101 No.26 pin 470p
GND CH1 CH2
Spindle motor
470p b
X Y
FOUT (TP1130)
IC1101 No.25 pin 100K
Lissajous waveform
(See page E41/J39) a:b = Within 4:1
Fig. 13
After performing automatic adjustment in the AUTO mode Adjustment hole
selected from the test mode by using a high reflecting MD 3
disc (COMPLETE status on display), adjust the EOUT to Spindle motor Check the Lissajous wave-
FOUT Lissajous waveform (x-y). 1 form while adjusting the
1. Loosen 3 screws of the spindle motor a little and make installation position by using a
adjustment while watching the Lissajous waveform. screwdriver in the adjustment
Adjustment hole hole in the spindle motor.
2. After adjustment, tighten screws in the order of (q), (w)
2
and (e).
Fig. 14
Jitter meter
2. Jitter verification method
After performing automatic adjustment in the AUTO mode
selected from the test mode by using a low reflecting MD IC1201 No.1 pin (TP1201)
EFMMON
disc, confirm the jitter in the pit continuous reproduction
GND
mode and the groove continuous reproduction mode.
(TP1125)
Fig. 15
(See page E41/J39)
Connector for 2P extension
FFC for 5P extension TX946200 From magnetic head
TX946190
CN1300(Rear face)
From motor
Mechanism From optical pickup
SW P.C.B.
CN1602(Rear face)
CN1601(Rear face) FFC for 28P extension
TX946220
CN1603(Rear face)
CN1604(Rear face) CN1101
MD Main P.C.B. Extension P.C.B. for servicing
(TX946230)
Install an Extension P.C.B. for servicing
to the mechanism.
Connector for 6P-2P extension
TX946210
Fig. 16
14
PROCEDURE TO WRITE DATA INTO EE-PROM (IC1402)
1. Procedure to change the EE-PROM and write the (5) Press the DISPLAY button 4 times.
initial value of the microprocessor into EE-PROM [ Temp ]
(1) Replace the EE-PROM. (6) Press the SET/ENTER button.
(2) Refer to the latest "List of EE-PROM contents". [ TEMP r r x x ]
(3) Press the POWER button while pressing the SET/ r r : Temperature measured value
ENTER button and the PLAY/PAUSE button to start x x : Temperature set value
the test mode. (7) Adjust the temperature set value to the value ob-
(4) Version on display tained as described above by using the jog dial.
Version of EEPROM protect data (from 01) (8) Press the DELETE/CANCEL button.
[ EEPROM SET ]
t s m 1 3 * * e * *
Version of microprocessor ROM (from 01) LIST OF EE-PROM CONTENTS
(5) Load a disc.
[ AUT YOBI ] q Focus setting
(6) Press the DISPLAY button 6 times.
Item on display Set value
[ EEPROM SET ]
FG rr DA H
(7) Perform the procedure to have "EE-PROM setting
FF1 rr 70 H
mode transition diagram" displayed, compare it with FF2 rr E0 H
"List of EE-PROM contents" and set to "List of EE- FZHLEV rr ED H
PROM contents" by using the jog dial. FOKLEVn rr 08 H
(8) Set the temperature standard value. FOKLEVf rr 08 H
(Refer to "Procedure to set the temperature standard FOKLPFn rr 00 H
value".) FOKPFVf rr 88 H
(9) Use the same settings as "List of EE-PROM con- WAITf rr 90 H
tents" for all.
q Spin setting
10) Set to the TEST mode and perform AUTO pre-
adjustment and AUTO adjustment. Item on display Set value
11) Cancel the TEST mode by pressing the REC button. SPG rr 20 H
(Writing into EEPROM starts from here.) SPG-in rr B8 H
SPG-mid rr 95 H
SPG-out rr 79 H
2. Procedure to set the temperature standard value SP1 rr 10 H
SP2 rr 87 H
(This setting should be performed within the room