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,
SET
INPUT
SYNCTIME
IMPORTANT: The presentation or sale of this manual to any individual or firm does not constitute authorization, certification or
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.
we advise all YAMAHA product owners that all service required should be performed by an authorized
YAMAHA Retailer or the appointed service representative.
recognition of any applicable technical capabilities, or establish a principle-agent relationship of any form.
S/F
RNDM
ABC DEF GHI JKL MNO
PQR
617283940
SPACE
+10
TITLE
ER
TY
PLAY PAUSE STOP REC
WDASCD-P
WARNING:Static discharges can destroy expensive components. Discharge any static electricity your body may have accumu-
IMPORTANT: Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the unit.
lated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss).
Critical Components Information
Components having special characteristics are marked Z
and must be replaced with parts having specifications equal
to those originally installed.
WALL
OUTLET
EQUIPMENT
UNDER TEST
INSULATING
TABLE
AC LEAKAGE
TESTER OR
EQUIVALENT
WARNING: Laser Safety
This product contains a laser beam component. This component may emit invisible, as well as visible radiation,
which may cause eye damage. To protect your eyes and skin from laser radiation, the following precautions must
be used during servicing of the unit.
1) When testing and/or repairing any component within the product, keep your eyes and skin more than 30 cm away from
the laser pick-up unit at all times. Do not stare at the laser beam at any time.
2) Do not attempt readjustment, disassembly or repair of the laser pick-up, unless noted elsewhere in this manual.
3) CAUTION : Use of controls, adjustments or performance of procedures other than those specified herein may result in
hazardous radiation exposure.
R, G, B models
R, G, B models
Cover (MD)
Laser Emitting conditions:
1) When the Cover (MD) is removed, and the POWER SW is turned to the "ON" position, the laser component will emit a
beam for several seconds to detect if a disc is present. During this time (5-10 sec.), the laser may radiate through the
lens of the laser pick-up unit. Do not attempt any servicing during this period!
MDX-596
If no disc is detected, the laser will stop emitting the beam. When a disc is set, you will not be exposed to any laser
emissions.
2) The laser power level can be adjusted with the VR on the pickup PWB, however, this level has been set by the factory
prior to shipping from the factory. Do not adjust this laser level control unless instruction is provided elsewhere in this
manual. Adjustment of this control can increase the laser emission level from the device.
1
Page 3
MDX-596
Laser Diode Properties
Material :GaAlAs
Wavelength :785 nm
Emission duration :Continuous
Pulse Durations and Max. Output at the lens of the Laser Pick Up Unit ;
Read mode :0.8 mW (Continuous)
Write mode :Max 10 mW for 0.5s, Min. Cycle 1.5s
ANSI Class :Class 1
* This output is the value measured at a distance of about 200 mm from
the objective lens surface on the Optical Pick-up Block.
VARO!: AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA NÄKYMÄTTÖMÄLLE
LASER-SÄTEILYLLE. ÄLÄ KATSO SÄTEESEEN.
VARNING! : OSYNLIG LASERSTRÅLNING NÄR DENNA DEL ÄR ÖPPNAD OCH SPÄRREN ÄR URKOPPLAD.
q POWER TRANSFORMER
w MAIN (1) P.C.B.
e POWER SWITCH
r MD RECORDER UNIT
t MAIN (2) P.C.B.
CB401
■ DISASSEMBLY PROCEDURES
(Remove parts in disassembly order as numbered.)
1. Removal of Top Cover
a. Remove 4 screws ( q ) and 3 screw
2. Removal of Front Panel
a. Remove 4 connectors.
CB5, CB6, CB7, CB401
b. Remove 3 screws
* Arrow marks ( ) are printed to identify the screws to be
removed.
c. Remove 2 screws
( e )
( r )
in Fig. 1
in Fig. 1
3. Removal of MD Recorder Unit
a. Remove 1 connector.
CB1
b. Remove 4 screws ( t ) in Fig. 1.
c. Remove 4 screws ( y ) in Fig. 2.
( w )
in Fig. 1.
.
.
qw
CB1
CB5
ert
Top Cover
q
MD Recorder Unit
r
t
t
CB6
CB7
w
q
e
MD Recorder Unit
y
r
Front Panel
y
Fig. 1
Support (Mechanism)
Fig. 2
MDX-596
4
Page 6
MDX-596
Disassembly of MD Recorder Unit
Remove the MD Recorder unit according to Steps 1 and 3 of the disassembly procedure (page 4).
Removal of MD Main P.C.B. and MD Mechanism (Fig. 3)
1. Remove 3 screws (K1) and then remove the Top Cover.
2. Remove 2 screws (K2) and then remove the Bottom Cover.
3. Disconnect 3 flat connecting cables (K3).
4. Disconnect the flexible P.C.B. for the optical pickup (K4).
5. Disconnect a connector (K5).
6. Remove 2 screws (K6) and then remove the MD Main
P.C.B.
7. Remove the spring (K7).
8. Remove 1 screw (K8) and then remove the Side Cover.
9. Remove 4 cushions (K9) from the bosses of the MD
Mechanism.
(K1)x1
ø2x 3mm
Top Cover
MD Mechanism
Boss
Spring
(K7)x1
(K1)x1
ø2x 3mm
(K1)x1
ø2x 3mm
Cushion
(K9)x2
(K8)x1
ø2x 3mm
Boss
Removal of Magnetic Head (Fig.4)
• Once the magnetic head is removed, it will be neces-
sary to perform “Confirmation of magnetic head
installation Position”. (See page 13.)
MDX-596
1. Remove screw (A1).
Caution
a. When removing the magnetic head, hold its base and
do not touch the magnetic head itself or the leaf
spring.
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.
Side Cover
(K3)x2
Pull
Pull
(K4)x1
Flexible P.C.B. for
optical pickup (*1)
(*1) After pulling off the flexible
P.C.B. for the optical pickup
from the connector, cover its
end with aluminum foil or the
like which is electrically
conductive so as to prevent the
optical pickup from being
damaged by static electricity.
Leaf Spring
MD Mechanism
MD Main P.C.B.
(K2)x1
ø2x 2mm
(A1)x1
ø1.7x 5mm
Cushion
(K9)x2
(K3)x1
(K5)x1
(K6)x2
ø1.7x 3mm
(K2)x1
ø2x 3mm
Bottom Cover
Magnetic Head
Fig. 3
Fig. 4
5
Page 7
MDX-596
Removal of MD Loading P.C.B./Loading Motor (Fig. 5)
1. Remove 1 screw (B1).
2. Remove 3 hooks (B2) and then remove the MD
Loading P.C.B.
3. Remove 2 screws (B3) and then remove the Loading
Motor.
Removal of Sled Motor/Optical Pickup Head (Fig. 6)
• Once the MD mechanism switch P.C.B. is removed, it
will be necessary to perform “Adjustment of Lead-in
Switch Position”. (See page 13.)
• Once the optical pickup head is removed, it will be
necessary to perform “Confirmation of magnetic head
installation Position”. (See page 13.)
Loading Motor
(B2)x2
Optical Pickup Head
(B3)x2
ø1.7x 3mm
(C1)x1
ø1.4x 5mm
(B1)x1
ø1.7x 6mm
MD Loading P.C.B.
(B2)x1
(C1)x2
ø1.4x 4.5mm
Sled Motor
MD Mechanism P.C.B.
Fig. 5
1. Remove 3 screws (C1) and then remove the sled
motor.
2. Remove the Optical Pickup Head.
Caution
Use care so as not to cause any damage to the gear.
(The damaged gear will cause abnormal noise to occur
while searching.)
Removal of Spindle Motor (Fig. 7)
• Once the spindle motor is removed, it will be necessary to perform “Pickup Rating”. (See page 14.)
1. Remove 3 screws (D1) and then remove the Spindle
Motor.
Caution
a. Be careful not to scratch the gear.
(Scratched gear will produce noises during searching.)
b.As the turn-table is magnetized, keep foreign objects
from being attracted.
(D1)x3
ø1.4x 3mm
Fig. 6
MDX-596
Spindle Motor
Fig. 7
6
Page 8
MDX-596
■ ADJUSTMENT & TEST MODE
Servicing Procedure
Perform adjustment and setup in the TEST mode. Specific adjustments and procedures vary depending on the type of servicing performed.
Required item
Type of servicing
PICKUP replacement
Magnetic head replacement
Mechanical unit replacement
(including PICKUP)
MD main PCB replacement
MD microprocessor (IC1401)
replacement
MD LSI (IC1201) replacement
RF IC (IC101) replacement
EEPROM IC (IC1402) replacement
TEMP standard
setting
TEMP
q
q
q
Numbers in the table, e.g., q, w, e, indicate the order in which required items should be performed.
"–" means that item needs not be performed.
–
–
–
–
–
EEPROM setting
value confirmation
EEPROM SET
q
–
q
w
q
_
w
w
AUTO preliminary
adjustment
AUT YOBI
w
–
w
e
–
q
e
e
AUTO
adjustment
AUTO AJST
e
–
e
r
_
w
r
r
AUTO AFB
adjustment
AUT AFB
r
–
r
t
_
e
t
t
EEPROM adjustment
value entry (*1)
TEST mode cancel
t
–
t
y
w
r
y
y
(With AUTO main adjustment done in advance)
Operation confirmation
TEST-PLAY
y
–
y
u
e
t
u
u
TEST-REC
u
q
u
i
r
y
i
i
(*1): The result of EEPROM entry is displayed at the end of the TEST mode.
OK_EEPROM:Both "setting value" and "preliminary adjustment completed" have been entered properly.
WR_EEPROM:The "setting value" has been entered properly but not "preliminary adjustment completed".
Perform preliminary adjustment properly and then enter "preliminary adjustment completed".
NG_EEPROM:The "setting value" has not been entered.
Check the MD microprocessor and EEPROM for connection.
Preparation before Adjustment
● Test disc
TypeTest disc
High reflecting discTDYS1 (SONY) [for reproduction] (P/No. TX945850)
Low reflecting discCommercially available mini disc for recording
Low reflecting discMMD-318 [for pre-adjustment] (P/No. AAX04890)
– – – – – – – –Clear disc for checking the head (P/No. AAX18050)
● Extension cable
TypePart No.
1. Extension P.C.B. for servicingAAX16660
2. 2-pin extension connector for servicingAAX16620
3. 6-pin flat cable for servicingAAX16640
4. 5-pin flat cable for servicingTX946190
5. 28-pin flat cable for servicingTX946220
TEST MODE
1. How to enter the test mode
1) Press the POWER button while pressing the SET/ENTER button and the PLAY/PAUSE button.
MDX-596
Version of microprocessor is displayed about 1 second.
tsm1C**e**
Version of EEPROM protect data (from 01)
Version of microprocessor ROM (from 01)
(see connection diagram on page 14.)
“EJECT” on display
2) Load either a disc for reproduction or a disc for recording.
“AUTOAJST” on display
7
Page 9
2. How to set to each mode
Every time the DISPLAY (forward) or EDIT (reverse) button is pressed, the mode changes. (For operation of each
mode, refer to the section describing each mode.)
AUTO_AJST (AUTO adjustment)
@
AUT_AFB (AUTO AFB adjustment)
@
RST_YOBI (RESULT preparation)
@
RESULT (RESULT)
@
Since this mode is not required for servicing , proceed to another mode promptly.
MNU_YOBI (MANUAL preliminary adjustment)
@
MNU_AJST (MANUAL adjustment)
@
EEPROM_SET (EEPROM setting)
@
AUT_YOBI (AUTO preliminary adjustment)
@
*
MDX-596
● Panel keys used in TEST mode
Panel keyFunction
RECTEST mode end (entry of EEPROM)1FH
EJECTEjectB3H
DISPLAYMenu feeding in TEST mode (1) / (Feeding of menus mainly related to adjustment and EEPROM)B2H
TITLE
CHARA.
EDITMenu feeding in reverse in TEST mode (Menu feeding in reverse in each TEST mode)A8H
SET/ENTERFinalization of menu selection or starting of its executionA2H
DELETE/CANCELStopping each test item and shifting to menu selection at one step upper levelA7H
SEARCH wForced feeding of the slide (in FWD direction) / Execution of JUMP function (FWD)AAH
SEARCH eForced feeding of the slide (in REV direction) / Execution of JUMP function (REV)ACH
JOG DIAL yForced feeding of the disc to EJECT / setting value increasedF3H
JOG DIAL tForced feeding of the disc to LOAD / setting value reducedF4H
INPUT
RANDOM–
REPEAT S/F–
REPEAT A-B–
SCROLL–
PLAY/PAUSE–
STOP–
Menu feeding in TEST mode (2) / (Feeding of menus mainly related to continuous playback and continuous recording)
Menu feeding in TEST mode (3) (Feeding of menus mainly related to INNER mode and JUMP SELECT)
ADDRESS setting value increased / Specification of direction when setting the tracking
ADDRESS setting value reduced / Specification of direction when setting the tracking
Switching of laser power at EJECT / switching of display for continuous playback / switching of digit setting when setting ADDRESS
Command code
B4H
F2H
F5H
MDX-596
3. How to cancel test mode (Entry of EEPROM adjustment value)
1) Be sure to perform AUTO preliminary adjustment, AUTO adjustment and AUTO AFB adjustment.
( “COMPLETE” appears on the display)
2) After completing above ajustments, press the REC button. (Entry to EEPROM initiates then.)
The TEST mode is completed. ( “TestEnd” appears on the display)
Laser power setting (record/reproduction power) is performed.
2. AUTO preliminary adjustment modeAutomatic preliminary adjustment is performed.
[ _ AUT _ YOBI _ ]Adjusted values are output by using the interface.
3. AUTO adjustment modeAutomatic adjustment is performed. (Grating adjustment mode after this adjustment.)
[ AUTO _ AJST _ ]Adjusted values are output by using the interface.
Continuous reproduction is performed. (Error rate on display, jump test)
4. AUTO AFB adjustment modeAutomatic focus balance adjustment is performed.
[ _ AUT _ AFB _ _ ]Adjusted values are output by using the interface.
RESULT preparation modeNot used (Do not use this function as it is not for servicing)
[ _ RST _ YOBI _ ]
RESULT mode (main adjustment)Not used (Do not use this function as it is not for servicing)
[ _ RESULT _ _ _ ]
MANUAL preliminary adjustment modeNot used (Do not use this function as it is not for servicing)
[ _ MNU _ YOBI _ ]
MANUAL adjustment modeNot used (Do not use this function as it is not for servicing)
[ _ MNU _ AJST _ ]
5. EEPROM setting modeVarious factors of the digital servo function are changed manually.
[ EEPROM _ SET ]The voltage is measured at the temperature detect terminal and the standard value is set.
6. TEST-PLAY modeContinuous reproduction from the specified address is performed.
[ TEST _ PLAY _ ]C1 error rate is measured and ADIP error rate is measured.
7. TEST-REC modeContinuous recording from the specified address is performed.
[ TEST _ REC _ _ ]
8. INNER modeThe position where the INNER switch is turned ON is measured.
[ _ _ INNER _ _ _ ]
1. EJECT mode
StepSetting methodRemarkDisplay
1
2
3
MDX-596
4
5
6
7
8
9
EJECT status in the TEST mode
Press the INPUT button.
Press the INPUT button.
Press the INPUT button.
Press the TITLE edit button.
Press the CHARA. button.
Press the DISPLAY button.
Press the DELETE/CANCEL button.
EJECT menu (No disc is loaded.)
Reproduction power output status
Recording power output status
Since this mode is not required for servicing , proceed to another mode promptly.
To TEMP setting
(Refer to TEMP setting)
To CONTROL1 setting
To CONTROL2 setting
EJECT menu
qPlayback power output “ppw”DC 0.2VOK (Move on to check w.)–
wRecording power output “rpw”DC 1.8VOK (End of checking.)–
“rpw” not achieved.–NGPerform *1.
*1: Poor soldering of the line at Pin 100 of IC1401.
Check the line of Pin 93 of IC1401 for short and poor soldering. (Check all the way to the SW P.C.B.)
*2: Check the line of Pin 3 of IC1401 for poor soldering and short with other patterns.
Check the pick-up laser for breakage.
Check item
(Pin 3 of IC1401)
DC 1.5VNGPerform *1.
Less than DC1.5V NGPerform *2.
Judgement
Possible cause and check content
● 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.
● TEMP (temperature standard) setting
(Make this setting quickly when the room temperature is within the range of 21 ˚C to 29 ˚C and
the P.C.B. is cold.)
(1) Set to the TEMP setting mode menu.
[ TEMP❍ ❍ ◆ ◆ ]
❍ ❍: Temperature measured value
◆ ◆: Temperature setting value
(2) Make temperature correction based on the ambient temperature and according to the following
table.
Ambient temperatureCorrection value
˚C ~ + 23.2 ˚C
+ 21.0
+ 23.3
+ 26.9
˚C ~ + 26.8 ˚C
˚C ~ + 30.7 ˚C
– 1H
± 0H
+ 1H
Example : When the temperature measured value is 7AH and the ambient temperature is 22 ˚C:
* If the temperature measured value deflects between two values, use the smaller value (If 7AH and 79H in the
above example, use 79H.)
(3) Using the jog dial, match the value obtained in Step (2) with the temperature setting value.
Example : When the temperature measured value is 7AH and the ambient temperature is 22 ˚C:
[ TEMP7A 79]
Temperature setting value
MDX-596
10
Page 12
MDX-596
2. AUTO preliminary adjustment modeDisc in use: MMD-318 [for pre-adjustment]
StepSetting methodRemarkDisplay
1
Set the Test mode.
2
Load a disc.
3
Press the EDIT button once.
4
Press the SET/ENTER button once.
Adjusted values are output.
Adjustment is completed.
5
When adjustment is OK, press the
DELETE/CANCEL button.
6
When adjustment is NG, press the
DELETE/CANCEL button.
No disc is loaded.
Auto adjustment menu
Auto preliminary adjustment menu
Auto preliminary adjustment is started after sliding to the
innermost track.
“***” changes in the following order during automatic
adjustment.
HAo -> ................. -> TCO
Proceed to Step 5 when adjustment is OK.
Proceed to Step 6 when adjustment is NG.
The display returns to the AUTO preliminary adjustment menu.
There is an abnormality at the adjusted point such as HAo.
Refer to “Troubleshooting”. (page 20)
3. AUTO adjustment modeDisc in use: TDYS1 (SONY) [for reproduction] or commercially available
mini disc for recording
StepSetting methodRemarkDisplay
1
Set the TEST mode.
2
Load a disc.
3
Press the SET/ENTER button once.
Adjusted values are output.
Adjustment is completed.
4
When adjustment is OK, press the
SET/ENTER button.
5
Press the INPUT button.
Press the DELETE/CANCEL button.
6
When adjustment is NG, press the
DELETE/CANCEL button.
No disc is loaded.
AUTO adjustment menu
Automatic adjustment is started after sliding to the innermost
track.
“ *** ” 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.
Proceed to Step 6 when adjustment is NG.
Continuous reproduction (bit section) (Address + C1 error display)
Continuous reproduction (group section) (Address + C1 error display)
Continuous reproduction (group section) (Address + ADIP error display)
Display returns to the AUTO adjustment menu display.
There is an abnormality at the adjusted point such as PEG.
Refer to “Troubleshooting”. (page 20)
Note) *** : Adjustment name, XXXX: Address, YYYY: Measured value
4. AUTO AFB adjustment modeDisc in use: Commercially available mini disc for recording
MDX-596
StepSetting methodRemarkDisplay
1
Set the Test mode.
2
Load a disc.
3
Press the DISPLAY button once.
4
Press the SET/ENTER button once.
5
Press the DELETE/CANCEL button.
No disc is loaded.
Auto adjustment menu
Auto AFB adjustment menu
Auto AFB adjustment is started.
Adjusted values are output.
The display returns to the AUTO AFB adjustment menu.
5. EEPROM setting modeDisc in use: Commercially available mini disc for recording
(used to confirm/adjust setting values)
Refer to p.15 for EEPROM setting.
6. TEST-PLAY modeUsing the disc: Commercially available mini disc for recording
(Use this mode to check that the playback function is provided at the specified address.)
StepSetting methodRemarkDisplay
1
Load a disc.
2
Press the TITLE button.
3
Press the INPUT button.
4
Press the SET/ENTER button.
5
Press the INPUT button.
6
Press the DELETE/CANCEL button.
• Every time the TITLE button is pressed in the address setting mode, the address changes in the order of 0032-> 03C0 -> 0700 -> 08A0
-> 0950 -> —
• Pressing the DISPLAY button in the TEST-PLAY menu changes to the AUTO adjustment menu.
AUTO adjustment menu
TEST-PLAY menu
ADDRESS setting (The initial value of the target address is displayed.)
Continuous reproduction (bit section) (Address + C1 error display)
Continuous reproduction (group section)
Continuous reproduction (group section) (Address + ADIP error display)
TEST-PLAY menu
(Address + C1 error display)
[ AUTO _ AJST _ ]
[ TEST _ PLAY _ ]
[ ADRES _ 0032 ]
[ s XXXX c YYYY ]
[ a XXXX c YYYY ]
[ a XXXX a YYYY ]
[ TEST _ PLAY _ ]
7. TEST-REC modeDisc in use: Commercially available mini disc for recording
(It is used to check the REC function at the specified address.)
StepSetting methodRemarkDisplay
1
Load a disc.
2
Press the TITLE button twice.
3
Press the SET/ENTER button.
4
Press the SET/ENTER button.
5
Press the DELETE/CANCEL button.
• Every time the TITLE button is pressed in the address setting mode, the address changes in the order of 0032-> 03C0 -> 0700 -> 08A0
-> 0950 -> —
• Pressing the DISPLAY button in the TEST-REC menu changes to the AUTO adjustment menu.
AUTO adjustment menu
TEST-REC menu
ADDRESS setting (The initial value of the address is displayed.)
Continuous recording
TEST-REC menu
[ AUTO _ AJST _ ]
[ TEST _ REC _ _ ]
[ a0032 _ pw ZZ ]
[ a XXXX _ pw ZZ ]
[ TEST _ REC _ _ ]
8. INNER modeDisc in use: Commercially available mini disc for recording
StepSetting methodRemarkDisplay
1
Load a disc.
2
Press the CHARA. button.
3
Press the SET/ENTER button.
4
Press the DELETE/CANCEL button.
• Pressing the DISPLAY button in the INNER menu changes to the AUTO adjustment menu.
AUTO adjustment menu
INNER menu
INNER switch position is measured.
(Both SUBQ address and C1 error are displayed.)
INNER menu
[ AUTO _ AJST _ ]
[ _ _ INNER _ _ _ ]
[ s XXXX c YYYY ]
[ _ _ INNER _ _ _ ]
MDX-596
12
Page 14
MDX-596
●
Lead-in switch position adjustment
Adjust the lead-in switch position so that it is between FF85 and FFD2.
1. Load a TDYS1 (SONY) (P/No. TX945850) disc for reproduction.
2. Loosen the screw (A1) (1 pc) attaching the mechanical switch P.C.B.
3. Retighten the screw (A1) (1 pc) while pressing the mechanical switch P.C.B in the arrow A direction in the figure for
FF85 or less and in the arrow B direction for FFD2 or more.
Measure the lead-in switch position again and check that it is in the range between FF85 and FFD2.
A
B
Note) Apply thread lock to the screw (A1) (1 pc) of
(A1) X1
the P.C.B. after tightening it.
Fig.8
●Forced rotation of loading motor
It is possible to force the loading motor to rotate by turning the jog dial when the microprocessor version (tsm1C**e**)
of the test mode or EJECT appears on display. (This is used when the disc cannot be ejected.)
JOG DIAL y : Forced feeding of the disc to EJECT
JOG DIAL t : Forced feeding of the disc to LOAD
* To obtain the microprocessor version on display when a disc is loaded, “AUTO _ AJST _ ” appears on display. Press
the DELETE/CANCEL key in this state, and the microprocessor version will appear.
● Confirmation of magnetic head installation position
• After replacing the magnetic head and the optical pick-up, be
sure to confirm their installation positions.
• To facilitate adjustment of their installation positions, bring the
optical pick-up to the center position and follow the procedure
Objective lens
Magnetic head
Circumferentical direction
described below.
1.Load a clear disc (P/No. AAX18050) for checking the head.
2.Push down the up-shift arm of the magnetic head with a finger to
MDX-596
Radial direction
raise the magnetic head.
3.Looking at the unit from above, check if the magnetic head
matches with the optical pick-up objective lens.
4.Check to ensure that the magnetic head moves up and down
smoothly.
13
Push down with a finger.
Fig.9
Page 15
MDX-596
MECHANISM ADJUSTMENT
When making an adjustment, be sure to connect an extension cable for servicing and an expansion P.C.B. as shown in
Fig.12.
1. Optical pickup rating inspection method
2
3
1
GND (TP1202)
IC1201 No.4 pin
EIN (TP1253)
IC1201 No.11 pin
FIN (TP1254)
IC1201 No.12 pin
(See page E41/J39)
(Externally attached)
100K
470p
470p
100K
Oscilloscope
Fig. 10
GND CH1 CH2
XY
a
b
Lissajous waveform
a:b = Within 4:1
2
After performing automatic adjustment in the AUTO mode
selected from the test mode by using a TDYS1 (SONY) (P/
No. TX945850) disc for reproduction (COMPLETE status
on display), adjust the EOUT to FOUT Lissajous waveform
(x-y).
1. Loosen 3 screws of the spindle motor a little and make
adjustment while watching the Lissajous waveform.
2. After adjustment, tighten screws in the order of (q), (w)
and (e).
From magnetic head
Mechanism
P.C.B.
1
3
Adjustment hole
Connector for 2P extension
AAX16620
Check the Lissajous waveform
while adjusting the installation
position by using a screwdriver in
the adjustment hole in the
spindle motor.
Fig. 11
From optical pickup
Extension P.C.B. for servicing
(AAX16660)
Install an Extension P.C.B. for servicing
to the mechanism.
FFC for 28P extension
TX946220
FFC for 6P extension
AAX16640
FFC for 5P extension
TX946190
Fig. 12
MD Main P.C.B.
MDX-596
14
Page 16
5. EEPROM setting modeDisc in use: Commercially available mini disc for recording
(used to confirm/adjust setting values)
1) Start the TEST mode.
2) Load the disc.
[AUTOAJST]
3) Press the DISPLAY button 6 times.
[EEPROMSET]
4) Execute the procedure to have “EEPROM setting mode transition diagram” displayed and adjust
the jog dial so that the same setting values as those in “EEPROM contents list” are obtained.
(Refer to p.10 for TEMP setting.)
5) Press the REC button to cancel the TEST mode.
(Entry into EEPROM can be started here.)
6) Set to the TEST mode again and perform AUTO preliminary adjustment, AUTO adjustment and
AUTO AFB adjustment.
EEPROM SETTING MODE TRANSITION DIAGRAM
Note) To return to the SUB MENU or MAIN MENU display of the test mode, press the DELETE/CANCEL button.
15
Page 17
EEPROM CONTENTS LIST
● Focus setting (Focus)
Item on displaySet value
FG❍ ❍B1 H
FF0❍ ❍10 H
FF1❍ ❍70 H
FF2❍ ❍E0 H
FZHLEV❍ ❍ED H
FOKLEVh❍ ❍07 H
FOKLEVL❍ ❍09 H
FOSTn❍ ❍2C H
DISCJG❍ ❍14 H
● Spin setting (Spindle)
Item on displaySet value
SPG❍ ❍10 H
SPG-in❍ ❍5C H
SPG-mid❍ ❍48 H
SPG-out❍ ❍38 H
SP1❍ ❍10 H
SP2❍ ❍93 H
SP3❍ ❍ED H
SP4❍ ❍EE H
SP5❍ ❍20 H
SPDLIM❍ ❍64 H
SPKLEVm❍ ❍15 H
● Tracking setting (Tracking)
Item on displaySet value
TG❍ ❍6B H
TF0❍ ❍10 H
TF1❍ ❍6B H
TF2❍ ❍F0 H
FT3❍ ❍08 H
SVCNT4❍ ❍01 H
TRBLVo❍ ❍68 H
TRBLVt❍ ❍50 H
TRKLVo❍ ❍60 H
TRKLVt❍ ❍2E H
TDPWo❍ ❍67 H
TDPWt❍ ❍21 H
SLCTo❍ ❍00 H
SLCTt❍ ❍50 H
SLCTm❍ ❍53 H
TCRSC1P❍ ❍16 H
TCRSC0h❍ ❍00 H
TCRSC0L❍ ❍FA H
TCRSCHh❍ ❍02 H
TCRSCHL❍ ❍02 H
COTLVP❍ ❍05 H
COTLVr❍ ❍15 H
JPint❍ ❍00 H
KIK10❍ ❍64 H
● Slide setting (Sled)
Item on displaySet value
SLG❍ ❍3E H
SL2❍ ❍10 H
SLDLIM❍ ❍7F H
SLDLEV❍ ❍12 H
SLKLVk❍ ❍55 H
SLKLVt❍ ❍2E H
SLKLVm❍ ❍55 H
SLBKm❍ ❍08 H
SLKrio❍ ❍60 H
SLKroi❍ ❍68 H
SLK1io❍ ❍68 H
SLK1oi❍ ❍60 H
● Control setting (Control)
Item on displaySet value
CONTROL1❍ ❍08 H
CONTROL2❍ ❍02 H
ADJTTM❍ ❍14 H
HDEQAD❍ ❍92 H
LDEQAD❍ ❍8E H
GDEQAD❍ ❍91 H
MDEQBC❍ ❍8C H
LDEQBC❍ ❍8F H
GDEQBC❍ ❍8A H
HALSG❍ ❍11 H
LALSG❍ ❍11 H
GALSG❍ ❍11 H
HALSOFS❍ ❍FC H
LALSOFS❍ ❍00 H
GALSOFS❍ ❍00 H
● Adjust setting (ADJSET)
Item on displaySet value
COK❍ ❍58 H
FAT❍ ❍C0 H
TAT❍ ❍3E H
CAT❍ ❍40 H
FAB❍ ❍5C H
STR❍ ❍0B H
SFS❍ ❍0D H
STC❍ ❍0D H
16
Page 18
MDX-596
■ SPECIAL TEST MODE
● How to set to the special test mode
Press the POWER button while pressing the SET/ENTER button and the STOP button. Then all the indicators will light up.
● Operation procedure
Every time the SET/ENTER button is pressed, lighting of indicators and items on the display change as follows.
1) All indicators light up.
2) All indicators turn off.
3) Segments not sharing the border light up.
4) Above segments turn off and other segments light up.
5) The date when the software was entered appears on the display.
6) The version of the micro processor appears on the display.[ CPUVer:TP03 ]
7) The time of auto-marking appears on the display.[ AMTime:C8h ]
8) The analog level of auto-marking appears on the display.[ AMLv1_A:24h ]
9) The digital level of auto-marking appears on the display.[ AMLv1_D:1Ah ]
10) The parameter of the bit distribution during recording on the display.[ RecBit0:C0h ]
11) The parameter of the bit distribution during recording on the display.[ RecBit1:FEh ]
12) Write/read check for EEPROM appears on the display[ EEW/RCheck ]
When the INPUT button is pressed at this point, whether the micro processor executed data write/read function into
EEPROM or not is checked.
If [OK] appears on the display and the pin 6 of IC6 is at “H”, the check result is satisfactory.
[NG] is displayed when there is an error while writing or reading the data.
In such a case, check EEPROM (IC7).
● How to cancel the special mode
Press the STOP button, and the mode will change from the special test mode to the factory preset mode and the data in
RAM will be cleared.
Note : Turning off the power will cancel the special test mode but will not clear the data in RAM (ie., user settings are
maintained).
MDX-596
Data to write in EEPROM (IC7)Initial settings
INPUT modeANALOG
REPEAT modeOFF
RANDOM modeOFF
PROGRAM modeOFF
REC mode (STEREO/MONO)STEREO
AUTO MARK/MANUALAUTO (“MANUAL” does not light up.)
DISPLAY modeDISC TITLE
17
Page 19
■ ERROR DISPLAY
Error on displayDescriptionCountermeasure
Can't REC
• DEFECT occurred 10 times continuously during RECPLAY.
• Recordable cluster became “0” due to occurrence of
DEFECT during REC-PLAY.
• REC mode cannot be set for 20 seconds even after
repeatedly trying to read the read disabled address.
• Check that the disc is free from any scratch,
dust, finger print, black spot, etc. and that
decentering, face deflection, etc. are not
excessive.
MDX-596
Can't Copy
DIGin Unlock
TOC Full
UTOC ERR R
• One of the following judgments has been made
depending on the channel status of the digital signal
input from D-IN during REC-PAUSE or REC-PLAY.
(1) Other than audio
(2) Other than civil purpose
(3) Copy NG due to reversed COPY bit of CD (ie., copy
protected)
• Either of the following symptoms occurred for the digital
signal input from D-IN during REC-PAUSE or RECPLAY.
(1) Digital IN PLL is unlocked.
(2) Locked under conditions other than FS=44.1kHz.
• No space is left to register music No and character data
(song name, disc name, etc.) while the REC-PLAY
function is used.
• No recordable space is left when trying to activate the
REC-PAUSE function.
• “FTNO > LTNO” occurred.
• “FTNO = 0 or 1” occurred.
• UTOC recorded in the disc could not be read.
• Check if the CD is a copy inhibited on (e.g., CD-
R, etc.)
• Check that the D-IN signal line is free from
abnormality.
• Use a disc for recording and reproduction with a
space left to register UTOC.
• As an abnormality exists in the UTOC data, use
another disc.
UTOC ERR A
UTOC ERR L0 ~ 4
Not Audio
Disc Full
Playback MD
Protected
• “Start address > end address” occurred.
• Any one of the UTOC0 ~ 4 data was looped.
• Data not for audio purpose is recorded in the track mode
of TNO which is currently selected.
• No recordable space is left when trying to activate the
REC-PAUSE function.
• The loaded disc was for reproduction only when trying to
activate the REC-PAUSE function or trying to edit.
• Recording or editing was attempted while the data
protector of the disc for recording and reproduction is
set to the data protected state.
• Editing the track subject to write protect function was
attempted by using the data written in UTOC.
• Select another TNO or use another disc.
MDX-596
• Use another disc for recording with a recordable
space left.
• As the loaded disc is for reproduction only, use
a disc for recording.
• Try again with the data protector set to the
original position.
• As the track to be edited is write protected, try
again with another track.
18
Page 20
MDX-596
Error on displayDescriptionCountermeasure
Can' t Edit
• Editing conditions were not satisfied with respect to
each editing function.
• Wrong operation procedure was used. Try
again by using the correct procedure.
TMP Over!!
DISC ERR R
DISC ERR S
DISC ERR W
TOC ERR S
TOC ERR R
U TOC W ERR
FOCUS ERR
BLANK DISC
• The temperature in the set (MD unit) went up excessively high due to occurrence of some abnormality.
• The data was not correct or it was not possible to read it
correctly.
• Recording the music data failed as an abnormality
occurred while recording it.
• The TOC data was not correct.
• It was not possible to read the TOC data.
• It was not possible to rewrite UTOC correctly and an
abnormality occurred while rewriting it.
• The disc was loaded but it was not possible to achieve
FOCUS.
• The total number of TNO and NAME characters was “0”
as a result of reading UTOC.
• Check according to troubleshooting.
• Check the temperature of the area where the
unit is used.
• Use another disc as there is an abnormality in
TOC or UTOC data or the disc has a scratch or
other faulty condition.
• The TOC data recorded in the disc is not in
compliance with the MD standard.
• Use another disc as the disc has a scratch or
other faulty condition.
• Use another disc as the disc has a scratch or
other faulty condition.
• Check that the disc is free from any scratch,
dust, finger print, black spot, etc. and that
decentering, face deflection, etc. are not
excessive.
• Check if the disc is recordable by actually
recording.
TOC W ERROR
EEPROM ERROR
Mechanism Error
MDX-596
Er_MD2_*The head fails to move up.
Er_MD3_*The head fails to move down.
* = E Eject completed position< 1.0 V
* = M Horizontal midway position> 3.01 V
* = LLoad completed position1.31 — 2.36 V
* = D Head down position1.01 — 1.31 V
• UTOC can be read but cannot be rewritten.
• The EEPROM data is not correct
Error on displayDescription
HINF (IC1401 No.93 pin)
• Check if the recording head contacts properly
and if wiring from the circuit board to the
recording head is free from breakage.
• Try again after resetting and if still NG, replace
EEPROM.
19
Page 21
MDX-596
■ TROUBLESHOOTING
When MD fails to operate
When the objective lens of the optical pickup becomes dirty, MD may fail to operate. Clean the objective lens first and
check MD for reproduction function. If it still fails to operate, check according to the following flow charts.
Contaminant on the pickup lens such as dust or other foreign matter may cause the pickup to skip or the TOC (content of
the selection) not to be displayed. Check if the lens is clean before making adjustments. If the lens is dirty, clean it as
follows.
● Turn off the power. Dampen the lens cleaning paper with a small amount of isopropyl alcohol and wipe the lens with it,
using care not to cause any damage to the lens. Be sure not to touch the lens with your hand directly.
Does the power turn on when the POWER button of the main unit is pressed?
YES
▼
Does the disc loading function work properly?
YES
▼
Is the play mode available when the PLAY/PAUSE button is pressed?
YES
▼
Is appropriate audio output provided?
YES
▼
Does recording/reproduction function work properly?Check the trouble item “Recording/reproduction function”.
Power fails to turn on.
Does the unit operate properly when its STOP button of is pressed?
NO
▼
Is +5V ~ +6V voltage applied to No.17 and 18 pins of CN1501?
NO
NO
NO
NO
NO
YES
NO
▲
Check the trouble item “Power fails to turn on”.
▲
Check the trouble item “Disc cannot be loaded properly.”.
▲
Check the trouble item “Play mode is not available.”.
▲
Check the trouble item “Audio reproduction circuit”.
▲
▲
Check the display section.
▲
Check the power supply section and CN1501.
YES
Is a pulse applied to No.6 pin of CN1501 when the reset power is turned on?
▼
YES
▼
Is the voltage at No.62 pin of IC1401 +3.2V?Check around Q1804 and IC1401.
NO
▼
Is a 8.4672MHz pulse applied to No.15 pin of IC1401?Check IC1201.
YES
▼
Is a pulse output from No.34 pin of IC1401?Check IC1401.
YES
NO
YES
NO
NO
▲
Check IC6 and CN1501.
▲
▲
▲
▼
Check CN1501 and IC6.
MDX-596
20
Page 22
MDX-596
Disc cannot be loaded properly.
Does the loading function work properly when a disc is inserted?
NO
Does No.5 pin of CN1401 become “H”?
YES
▼
Does a change occur at either No.19 or 20 pin of IC1601?
YES
▼
▼
Does a change occur at either No.12 or 13 pin of IC1601?
YES
▼
Check M903.
YES
▼
Does eject function work when the MD eject button is pressed?
YES
NO
NO
NO
NO
▲
Check CN1401, CN1931 and SW1932.
▲
Check IC1401.
▲
Check CN1401, CN1931 and IC1601.
Is the disc drawn in again immediately after it is ejected?
Check CN1901 and SW1932.
Play mode is not available.
Is the play mode unavailable with either high reflecting disc
or low reflecting disc?
MDX-596
Is the play mode unavailable only with the high reflecting disc?
Is the voltage at No.93 pin of IC1401 1.45 ± 0.15V in the test
mode state with a high reflecting disc loaded?
▼
▼
▼
▼
YES
YES
NO
YES
YES
▲
Proceed to the check item “Checking by using the test mode”.
NO
▼
The play mode unavailable only with the low reflecting disc.
YES
▼
Is the voltage at No.93 pin of IC1401 with a low reflecting disc loaded
1.75V ± 0.15V (recordable) or 2.15V ± 0.15V (recording inhibited)?
NO
YES
▼
▼
After readjustment, proceed to the check item “Normal reproduction”.
21
▼
YES
NO
▼
Check SW1931, loading circuit board and CN1931.
Page 23
Normal reproduction
Applicable when the E2-PROM value has been confirmed as normal in the test mode
MDX-596
Is initialization done properly for reproduction of a high reflecting disc?
YES
NO
▼
Is the disc turning properly?
NO
YES
▼
Check the position of the lead-in switch by selecting the lead-in
switch position measurement mode from the adjustment items for
the high reflecting disc.
▲
Does the play time display count up properly?
NO
▼
Check IC1201.
▲
Does the lead-in switch turn on with the pickup at the
innermost track in the test mode?
(Is No.63 pin of IC1401 at “L”?)
NO
▼
Check SW1936, soldered points in the mechanical switch
circuit board and around No.6 pin of CN1932.
Audio reproduction circuit
Applicable when no sound is produced although the play time display counts up properly during reproduction in the normal mode
Is the audio output waveform obtained at No.24 and 26 pins of IC1701?
NO
YES
▼
Is the audio output waveform obtained at No.26 and 28 pins of CN1501?
NO
▲
Check No.70 — 72, 74 pins of IC1201 and No.12, 16,
17, 19 pins of IC1701.
▲
Check the connection line IC1701 and CN1501.
YES
▼
Is the audio output waveform obtained at No.1 and 7 pins of IC3?
YES
NO
▲
Check IC3.
▼
Check the muting section of IC8.
MDX-596
22
Page 24
MDX-596
Recording/reproduction function
Load a low reflection disc and after confirming the audio output in the normal reproduction mode, execute recording/reproduction.
Does the recording function fail from the starting address?
NO
▲
Check that the disc is not in the recording inhibited status.
YES
▼
Is an RF waveform available at No.1 pin of IC1201 or TP1201
during reproduction after recording?
NO
▼
Does the level of No.3, 26 and 39 pins of IC1401 change
between recording and reproduction?
YES
▼
Is an RF pattern provided at No.50 pin of IC1201?
YES
YES
NO
NO
▲
Check around IC1401.
▲
Check IC1201 for proper soldering.
▼
Check IC1300 — 1302 and CN1300.
I
s an output waveform available at No. 1 and 7 pins of IC4 and No. 1
and 7 pins of IC5 while recording the LINE input in the normal mode?
Is an input waveform applied to No.3 and 5 pins of IC1701?
Check around IC1701 and No.70 — 73 pins of IC1201.
MDX-596
▼
▼
▼
YES
YES
NO
NO
▲
Check around IC4 and IC5 and also check the REC
LEVEL volume.
▲
Check around IC1701 and CN1501.
23
Page 25
Checking by using the test mode
Spindle motor does not run.
Is a correct waveform provided at No.24 and 25 pins of IC1201
during the AUTO adjustment mode step 3 in the test mode?
YES
▼
Is a waveform provided at No.9 and 10 pins of IC1601 as
well as at No.5 and 6 pins of CN1402?
YES
▼
Replace the spindle motor as a complete unit.
NO
NO
MDX-596
▲
Check No.24 and 25 pins of IC1201 as well as solder
connections and parts of the peripheral circuit.
▲
Check IC1601, CN1402 and the mechanism switch circuit
board solder connections.
Sled motor does not run.
Does a change occur at No.22 and 23 pins of IC1201 when
R and E buttons are pressed?
NO
YES
▼
Does a change occur at No.14 and 15 pins of IC1601 and No.3 and
4 pins of CN1402 when the R and E buttons are pressed?
NO
YES
▼
Does a voltage change occur at the + and - terminals of the
sled motor when the R and E buttons are pressed?
YES
NO
▼
Replace the sled motor.
▲
Check the waveform at No.22 and 23 pins of IC1201,
peripheral parts and solder connections.
▲
Check IC1601 and CN1402 solder connections.
▲
Check the connection section to the sled motor for any
poor solder connections or broken wires.
RF signal input terminal 1 to input RF signal output from pickup
RF signal input terminal 2 to input RF signal output from pickup
RF signal input terminal 3 to input RF signal output from pickup
RF signal input terminal 4 to input RF signal output from pickup
Amplifier input terminal for reference voltage
Amplifier output terminal for reference voltage
Amplifier (focus servo system) output terminal 1 for servo signal
Amplifier (focus servo system) output terminal 2 for servo signal
Amplifier (focus servo system) reverse input terminal for servo signal
Amplifier (focus servo system) reverse input terminal for servo signal
Amplifier (focus servo system) output terminal 2 for servo signal
Amplifier (focus servo system) output terminal 1 for servo signal
Amplifier (tracking servo system) output terminal 1 for servo signal
Amplifier (tracking servo system) output terminal 2 for servo signal
Amplifier (tracking servo system) reverse input terminal for servo signal
Amplifier (tracking servo system) reverse input terminal for servo signal
Amplifier (tracking servo system) output terminal 2 for servo signal
Amplifier (tracking servo system) output terminal 1 for servo signal
Amplifier (tracking servo system) output terminal 1 for servo signal
Amplifier (tracking servo system) output terminal 1 for servo signal
Amplifier (tracking servo system) output terminal 1 for servo signal
Amplifier output terminal for track cross detect signal when in groove section
Amplifier input terminal for track cross detect signal when in groove section
Output terminal for added resistance of RF1 ~ 4
Chip temperature detect terminal
Switch control terminal for servo amplifier
Pit/grove mode select control terminal
Power supply output terminal for OPIC section
Power supply terminal for digital/power section
Comparator output terminal to make ADIP signal into binary value
Ground terminal for digital/power section
Pre-amplifier output terminal for ADIP signal
Function
The * marked terminal is a terminal which is not connected externally (open terminal).
AGC amplifier output terminal for ADIP signal
AGC smooth capacitor connecting terminal for ADIP signal
AGC amplifier input terminal for ADIP signal
RF1, RF2 differential signal
AGC amplifier output terminal for RF signal
Reference voltage smooth capacitor connecting terminal for RF signal AGC amplifier
AGC smooth capacitor connecting terminal for RF signal
Power supply terminal for analog section
Bias input terminal
Ground terminal for analog section
AGC amplifier reverse input terminal for RF signal
Ground terminal when in pit section
Output terminal for added resistance of RF3 and RF4 when in groove section
AGC amplifier reverse input terminal for RF signal
Output terminal for added resistance of RF1 and RF2 when in groove section
Output terminal for added resistance of RF1 ~ 4 when in pit section
The * marked terminal is a terminal which is not connected externally (open terminal).
EFM monitor output
Power supply terminal for analog section
Input terminal for EFM signal from RF amplifier
Ground terminal for analog section
Power supply terminal for analog section
Reference voltage input for RF amplifier
ADIP wobble signal
Tracking cross signal
Focus error signal A
The * marked terminal is a terminal which is not connected externally (open terminal).
Focus error signal B
Tracking error signal E
Tracking error signal F
Power supply voltage detect signal for constant voltage servo
Power supply terminal for digital section
Digital ground terminal
Connected to GND in normal use
Clock output. f=176.4KHz (4fs)
Focus servo forward output. PWM
Focus servo reverse output. PWM
Tracking servo forward output. PWM
Tracking servo reverse output. PWM
Slide servo forward output. PWM
Slide servo reverse output. PWM
Spindle servo forward output or spindle serve output. PWM
Spindle servo reverse output or switching of spindle rotation forward/reverse
Address output to external D-RAM. ADR3
Address output to external D-RAM. ADR2
Address output to external D-RAM. ADR1
Address output to external D-RAM. ADR0 (LSB)
Address output to external D-RAM. ADR10 (MSB)
Power supply terminal for DRAM interface
Address output to external D-RAM. ADR4
Address output to external D-RAM. ADR5
Address output to external D-RAM. ADR6
Address output to external D-RAM. ADR7
Address output to external D-RAM. ADR8
Data output enable signal output to external D-RAM
Ground terminal for digital section
Column address strobe signal output to external D-RAM
Data input/output with external D-RAM. D2
Data input/output with external D-RAM. D3 (MSB)
Address output to external D-RAM. ADR9
Low address strobe signal output to external D-RAM
Data write enable signal output to external D-RAM
Data input/output with external D-RAM. D1
Data input/output with external D-RAM. D0 (LSB)
ADR11 (MSB 64Mbit)
CRC error flag monitor output of ADIP
EFM PLL clock output during reproduction
EFM signal output during recording and C1F (C1 error flag) monitor output during reproduction
Clock output. f=705.6KHz. No clock output when RSTX=0.
Track cross signal
Test input terminal, connected to GND when in normal use
DIN lock detect
Digital input signal. Expansion port 0
Data input for high speed dubbing. Microprocessor expansion output port 5 when switching.
LR clock input for high speed dubbing. Microprocessor expansion output port 6 when switching.
Bit clock input for high speed dubbing. Microprocessor expansion output port 7 when switching.
PLL clock input for variable pitch.
PLL phase error output for variable pitch.
Power supply terminal for digital section
Ground terminal for digital section
Oscillation circuit input. 33.8688MHz
The * marked terminal is a terminal which is not connected externally (open terminal).
The * marked terminal is a terminal which is not connected externally (open terminal).
(Note) Set RSTX to "L" when or after turning on the power supply.
Oscillation circuit output. 33.8688MHz
Digital input signal
Digital output signal
External capacitor terminal for internal PLL
Ground terminal for digital section
Output terminal for switching music data to Lch, Rch
Shift clock for music data
Clock for AD/DA converter digital filter. 256Fs
Voice data input
Voice data output
Focus error signal monitor output
Total signal monitor output
Tracking error signal monitor output
DIN sub-code reading clock. EIAJ CP-309 format
DIN sub-code serial data. EIAJ CP-309 format.
DIN sub-code block synchronous signal. EIAJ CP-309 format.
DIN sub-code frame synchronous signal. EIAJ CP-309 format.
Focus OK detect signal. "0": focus OK
Servo state detect signal. "1": Auto move, auto jump, auto focus being drawn in
Track cross signal output
Clock output for microprocessor. Clock output also when RSTX=0
Output terminal used to request interrupt into system control interface.
Power supply terminal for interface section
Ground terminal for digital section
Chip reset input. Reset at "L" (Note)
Data bus terminal of system control interface (LSB)
Data bus terminal of system control interface.
Data bus terminal of system control interface. (MSB)
Input terminal for register write pulse of system control interface
Input terminal for register read pulse of system control interface
Input terminal for register selection of system control interface
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Unused (Open)
Digital input switching
LINE MUTE
Unused (GND)
(Pull-down at 5.1 kΩ)
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Reset input
Ceramic clock 10MHz
GND level input
Ceramic clock 10MHz
Microprocessor power supply input
PU to Vcc
MD strobe input
Power failure detect (Power down)
Remote controller input
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Clock to EEPROM
Data input for EEPROM
Data to EEPROM
Data to FL driver
CE FL driver
Clock FL data
Reset FL driver
MD key data
MD data input
MD clock output
MD start (MD-ON)
MD reset output
Used at MD unit power failure
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
PU at 10kΩ
Unused (pull up)
Unused (pull up)
Destination input
L-H: DISC IN
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Unused ((Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Microprocessor power supply input
Unused (Pull-down at 10 kΩ)
GND level input
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Unused ((Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Timer SW input
Timer SW input
Unused (Pull-down at 10 kΩ)
JOG input 2
JOG input 1
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Unused ((Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
Unused (Pull-down at 10 kΩ)
KEY input 3
KEY input 2
GND level input for AD
KEY input 1
Reference voltage input for AD
Power supply terminal for AD
Unused (Pull-down at 10 kΩ)
BA
BB
98
99
9A
9B
9C
A0
A1
A2
A4
A3
AB
AE
B1
B0
A8
A9
AA
AF
81
83
84
91
90
92
85
8A
8F
93
CUSTOM CODE
HEX79C0 C1 C2 C3 C4 C5 C6 C7
7
10011110
51
Page 47
MDX-596
■ WARNING
Components having special characteristics are marked Z and must be replaced
PARTS LIST
■ ELECTRICAL PARTS
with parts having specifications equal to those originally installed.
● Carbon resistors (1/6W or 1/4W) are not included in the ELECTRICAL PARTS
List. For the parts No. of the carbon resistors, refer to last page.
ABBREVIATIONS IN THIS LIST ARE AS FOLLOWS :
C.A.EL.CHP: CHIP ALUMI. ELECTROLYTIC CAP
C.CE: CERAMIC CAP
C.CE.ARRAY : CERAMIC CAP ARRAY
C.CE.CHP: CHIP CERAMIC CAP
C.CE.ML: MULTILAYER CERAMIC CAP
C.CE.M.CHP: CHIP MULTILAYER CERAMIC CAP
C.CE.SAFTY: RECOGNIZED CERAMIC CAP
C.CE.TUBLR : CERAMIC TUBULAR CAP
C.CE.SMI: SEMI CONDUCTIVE CERAMIC CAP
C.EL: ELECTROLYTIC CAP
C.MICA: MICA CAP
C.ML.FLM: MULTILAYER FILM CAP
C.MP: METALLIZED PAPER CAP
C.MYLAR: MYLAR FILM CAP
C.MYLAR.ML : MULTILAYER MYLAR FILM CAP
C.PAPER: PAPER CAPACITOR
C.PLS: POLYSTYRENE FILM CAP
C.POL: POLYESTER FILM CAP
C.POLY: POLYETHYLENE FILM CAP
C.PP: POLYPROPYLENE FILM CAP
C.TNTL: TANTALUM CAP
C.TNTL.CHP: CHIP TANTALUM CAP
C.TRIM: TRIMMER CAP
CN: CONNECTOR
CN.BS.PIN: CONNECTOR, BASE PIN
CN.CANNON : CONNECTOR, CANNON
CN.DIN: CONNECTOR, DIN
CN.FLAT: CONNECTOR, FLAT CABLE
CN.POST: CONNECTOR, BASE POST
COIL.MX.AM: COIL, AM MIX
COIL.AT.FM: COIL, FM ANTENNA
COIL.DT.FM: COIL, FM DETECT
COIL.MX.FM: COIL, FM MIX
COIL.OUTPT : OUTPUT COIL
DIOD.ARRAY : DIODE ARRAY
DIODE.BRG: DIODE BRIDGE
DIODE.CHP: CHIP DIODE
DIODE.VAR: VARACTOR DIODE
DIOD.Z.CHP: CHIP ZENER DIODE
DIODE.ZENR : ZENER DIODE
DSCR.CE: CERAMIC DISCRIMINATOR
FER.BEAD: FERRITE BEADS
FER.CORE: FERRITE CORE
FET.CHP: CHIP FET
FL.DSPLY: FLUORESCENT DISPLAY
FLTR.CE: CERAMIC FILTER
FLTR.COMB: COMB FILTER MODULE
MDX-596
FLTR.LC.RF: LC FILTER ,EMI
GND.MTL: GROUND PLATE
GND.TERM: GROUND TERMINAL
HOLDER.FUS : FUSE HOLDER
IC.PRTCT: IC PROTECTOR
JUMPER.CN: JUMPER CONNECTOR
JUMPER.TST : JUMPER, TEST POINT
L.DTCT: LIGHT DETECTING MODULE
L.EMIT: LIGHT EMITTING MODULE
LED.DSPLY: LED DISPLAY
LED.INFRD: LED, INFRARED
MODUL.RF: MODULATOR, RF
PHOT.CPL: PHOTO COUPLER
PHOT.INTR: PHOTO INTERRUPTER
PHOT.RFLCT : PHOTO REFLECTOR
PIN.TEST: PIN, TEST POINT
PLST.RIVET: PLASTIC RIVET
R.ARRAY: RESISTOR ARRAY
R.CAR: CARBON RESISTOR
R.CAR.CHP: CHIP RESISTOR
R.CAR.FP: FLAME PROOF CARBON RESISTOR
R.FUS: FUSABLE RESISTOR
R.MTL.CHP: CHIP METAL FILM RESISTOR
R.MTL.FLM: METAL FILM RESISTOR
R.MTL.OXD: METAL OXIDE FILM RESISTOR
R.MTL.PLAT: METAL PLATE RESISTOR
RSNR.CE: CERAMIC RESONATOR
RSNR.CRYS: CRYSTAL RESONATOR
R.TW.CEM: TWIN CEMENT FIXED RESISTOR
R.WW: WIRE WOUND RESISTOR
SCR.BND.HD : BIND HEAD B-TITE SCREW
SCR.BW.HD: BW HEAD TAPPING SCREW
SCR.CUP: CUP TITE SCREW
SCR.TERM: SCREW TERMINAL
SCR.TR: SCREW, TRANSISTOR
SUPRT.PCB: SUPPORT, P.C.B.
SURG.PRTCT : SURGE PROTECTOR
SW.TACT: TACT SWITCH
SW.LEAF: LEAF SWITCH
SW.LEVER: LEVER SWITCH
SW.MICRO: MICRO SWITCH
SW.PUSH: PUSH SWITCH
SW.RT.ENC: ROTARY ENCODER
SW.RT.MTR: ROTARY SWITCH WITH MOTOR
SW.RT: ROTARY SWITCH
SW.SLIDE: SLIDE SWITCH
TERM.SP: SPEAKER TERMINAL
TERM.WRAP : WRAPPING TERMINAL
THRMST.CHP : CHIP THERMISTOR
TR.CHP: CHIP TRANSISTOR
TR.DGT: DIGITAL TRANSISTOR
TR.DGT.CHP : CHIP DIGITAL TRANSISTOR
TRANS: TRANSFORMER
TRANS.PULS : PULSE TRANSFORMER
TRANS.PWR : POWER TRANSFORMER ASS’y
TUNER.AM: TUNER PACK, AM
TUNER.FM: TUNER PACK, FM
TUNER.PK: FRONT-END TUNER PACK
VR: ROTARY POTENTIOMETER
VR.MTR: POTENTIOMETER WITH MOTOR
VR.SW: POTENTIOMETER WITH ROTARY SW
VR.SLIDE: SLIDE POTENTIOMETER
VR.TRIM: TRIMMER POTENTIOMETER
Note) Those parts marked with “#” are not included in the P.C.B. ass'y.