Sharp MD-DR470HS User manual

MD-DR470H/MD-DR480H
CONTENTS
Page
SAFETY PRECAUTION FOR SERVICE MANUAL .......................................................................................................... 2
SPECIFICATIONS ............................................................................................................................................................ 3
NAMES OF PARTS .......................................................................................................................................................... 5
DISASSEMBLY................................................................................................................................................................. 6
REMOVING AND REINSTALLING THE MAIN PARTS.................................................................................................... 7
ADJUSTMENT .................................................................................................................................................................. 8
BLOCK DIAGRAM .......................................................................................................................................................... 25
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD............................................................................................ 26
VOLTAGE ....................................................................................................................................................................... 37
NOTES ON SCHEMATIC DIAGRAM ............................................................................................................................. 38
TYPES OF TRANSISTOR AND DIODE ......................................................................................................................... 38
WAVEFORMS OF MD CIRCUIT .................................................................................................................................... 39
TROUBLESHOOTING .................................................................................................................................................... 41
FUNCTION TABLE OF IC............................................................................................................................................... 44
PARTS GUIDE/EXPLODED VIEW
PACKING METHOD (MD-DR470H FOR U.K. ONLY)
SERVICE MANUAL
SHARP CORPORATION
No. S1309MDR470HS
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.
Illustration: MD-DR470H
Illustration: MD-DR480H
MD-DR470H(S)
MD-DR470H(BL)
MD-DR480H(S)
MODEL MD-DR480H(BL)
1-BIT PORTABLE MINIDISC RECORDER

MD-DR470H/MD-DR480H
– 2 –
Precaution to be taken when replacing and servicing the laser pickup.
The following precautions must be observed during servicing to protect your eyes against exposure to the laser.
Warning of possible eye damage when repairing:
If the AC adaptor or batteries are connected when the top housing (disc cover) of the unit is removed, and the PLAY key is
pressed, the laser will light up during focus access (2-3 seconds). (Fig. 2-1) During the operation, the laser will leak from the
opening between the magnetic head and the mechanical chassis (Fig. 2-2). In order to protect your eyes, you must not look
at the laser during repair. Before repairing be sure to disconnect the AC adaptor and remove the batteries.
Precaution to be taken when replacing and servicing the Laser Pickup.
The AEL (Accessible Emission Level) of Laser Power Output for this model is specified to be lower than Class 1 Requirements.
However, the following precautions must be observed during servicing to protect your eyes against exposure to the laser beam.
(1)Whenthecabinethasbeenremoved,thepoweristurnedonwithoutacompactdisc,andthePickupisonapositionouterthan
the lead-in position, the Laser will light for several seconds to detect a disc. Do not look into the Pickup Lens.
(2) The Laser Power Output of the Pickup inside the unit and replacement service parts have already been adjusted prior to
shipping.
(3) No adjustment to the Laser Power should be attempted when replacing or servicing the Pickup.
(4) Under no circumstances look directly into the Pickup Lens at any time.
(5) CAUTION - Use of controls or adjustments, or performance of procedures other than those specified herein may result in
hazardous radiation exposure.
SAFETY PRECAUTION FOR SERVICE MANUAL
Magnet Head Laser Beam
Optical Pickup
Main PWB
Spindle motor
Mechanism
Chassis
Figure 2-1 Figure 2-2
For MD-DR470H For MD-DR480H
Laser Diode Properties
Material: GaAlAs
Wavelength: 785 nm
Pulse time:
Read mode: 0.8 mW Continuous
Write mode: max 10 mW 0.5S
min cycle 1.5S
Repetition
Laser Diode Properties
Material: GaAIAs
Wavelength: 785 nm
Pulse time:
Read mode: 0.8 mW Continuous
Write mode: max 10 mW 0.5S
min cycle 1.5S
Repetition
OPEN
OPEN
OPEN
OPEN
Magnet Head
Optical Pickup Top Cabinet

MD-DR470H/MD-DR480H
– 3 –
FORACOMPLETEDESCRIPTIONOFTHEOPERATIONOFTHISUNIT,PLEASEREFERTO
THE OPERATION MANUAL.
Specifications for this model are subject to change without prior
notice
SPECIFICATIONS
Power source: DC 5 V: AC adaptor (AC 230 V, 50/60 Hz)
DC 1.5 V: Commercially available, "AA" size (LR6), alkaline battery x 1
DC 1.2 V: Rechargeable Nickel-Metal Hydride battery AD-N55BT x 1
DC 4.5 V: Optional car adaptor, AD-CA20X (for cars with a 12 - 24 V DC negative
earth electrical system)
Power consumption: 7 W (AC adaptor)
Output power: RMS: 16 mW (8 mW + 8 mW)
(0.2 % T.H.D.)
Charging time: Approx. 3.5 hours (90 %)
Approx. 5.5 hours (fully charged)
Dimensions: Width: 78.9 mm (3-1/8") Height: 17.8 mm (23/32") Depth: 71.9 mm (2-27/32")
Weight: 140 g (0.31 lbs.) with rechargeable battery
Input socket: Line/optical digital, microphone (powered by the main unit)
Output socket: Earphones (impedance: 32 ohms)/remote control unit
Type: Portable MiniDisc recorder
Signal readout: Non-contact, 3-beam semiconductor laser pickup
Audio channels: Stereo 2 channels/monaural 1 channel
Frequency response: 20 - 20,000 Hz (±3 dB)
Rotation speed: Approx. 400 - 1,800 rpm
Error correction: ACIRC (Advanced Cross Interleave Reed-Solomon Code)
Coding: ATRAC/ATRAC3 (Adaptive TRansform Acoustic Coding)
Recording method: Magnetic modulation overwrite method
Sampling frequency: 44.1 kHz (32 kHz and 48 kHz signals are converted to 44.1 kHz, and then recorded.)
Wow and flutter: Unmeasurable (less than ±0.001 % W. peak)
Battery life:
Input sensitivity: Output level:
Stereo 2 times long 4 times long
When using the rechargeable
battery (fully charged) included
with the unit
Continuous
recording:
Approx. 10.5
hours
Continuous
play: Approx.
27 hours
Continuous
recording:
Approx. 15
hours
Continuous
play: Approx.
35 hours
Continuous
recording:
Approx. 22
hours
Continuous
play: Approx.
42 hours
When using one, commercially
available, high capacity, "AA"
size (LR6), alkaline battery (The
rechargeable battery is in the
unit, discharged.)
Continuous
recording:
Approx. 13
hours
Continuous
play: Approx.
41 hours
Continuous
recording:
Approx. 22
hours
Continuous
play: Approx.
59 hours
Continuous
recording:
Approx. 30
hours
Continuous
play: Approx.
71 hours
When using one, commercially
available, high capacity, "AA"
size (LR6), alkaline battery with
the rechargeable battery (fully
charged)
Continuous
recording:
Approx. 28
hours
Continuous
play: Approx.
72 hours
Continuous
recording:
Approx. 42
hours
Continuous
play: Approx.
100 hours
Continuous
recording:
Approx. 57
hours
Continuous
play: Approx.
122 hours
Reference input
level Input impedance
MIC H 0.25 mV 10 kohms
MIC L 2.5 mV 10 kohms
LINE 100 mV 20 kohms
Specified
output Maximum output level Load imped- ance
Earphones - 8 mW + 8
mW 32 ohms
LINE 250 mV (-12
dB) - 10 kohms
The continuous recording time is for analogue inputs when the volume level is set to "VOL 0".
The continuous play time shows the value when the volume level is set to "VOL 15".
The above values are the standard values when the unit is charged and used at an ambient temperature of 25˚C (77˚F).
The operating time when using an alkaline battery may be different, depending on the type and manufacturer of the battery,
and on the operating temperature.
The setting for the REMOTE LCD is set to "AUTO OFF".
For MD-DR470H

MD-DR470H/MD-DR480H
– 4 –
Power source: DC 5 V: AC adaptor (AC 110 - 240 V, 50/60 Hz)
DC 1.5 V: Commercially available, "AA" size (LR6), alkaline battery x 1
DC 1.2 V: Rechargeable Nickel-Metal Hydride battery AD-N55BT x 1
DC 4.5 V: Optional car adaptor, AD-CA20X (for cars with a 12 - 24 V DC negative
earth electrical system)
Power consumption: 0.15 A (AC adaptor)
Output power: RMS: 16 mW (8 mW + 8 mW)
(0.2 % T.H.D.)
Charging time: Approx. 3.5 hours (90 %)
Approx. 5.5 hours (fully charged)
Dimensions: Width: 78.9 mm (3-1/8") Height: 17.8 mm (23/32") Depth: 71.9 mm (2-27/32")
Weight: 140 g (0.31 lbs.) with rechargeable battery
Input socket: Line/optical digital, microphone (powered by the main unit)
Output socket: Earphones (impedance: 32 ohms)/remote control unit
Type: Portable MiniDisc recorder
Signal readout: Non-contact, 3-beam semiconductor laser pickup
Audio channels: Stereo 2 channels/monaural 1 channel
Frequency response: 20 - 20,000 Hz (±3 dB)
Rotation speed: Approx. 400 - 1,800 rpm
Error correction: ACIRC (Advanced Cross Interleave Reed-Solomon Code)
Coding: ATRAC/ATRAC3 (Adaptive TRansform Acoustic Coding)
Recording method: Magnetic modulation overwrite method
Sampling frequency: 44.1 kHz (32 kHz and 48 kHz signals are converted to 44.1 kHz, and then recorded.)
Wow and flutter: Unmeasurable (less than ±0.001 % W. peak)
Battery life:
Input sensitivity: Output level:
Stereo 2 times long 4 times long
When using the rechargeable
battery (fully charged) included
with the unit
Continuous
recording:
Approx. 10.5
hours
Continuous
play: Approx.
27 hours
Continuous
recording:
Approx. 15
hours
Continuous
play: Approx.
35 hours
Continuous
recording:
Approx. 22
hours
Continuous
play: Approx.
42 hours
When using one, commercially
available, high capacity, "AA"
size (LR6), alkaline battery (The
rechargeable battery is in the
unit, discharged.)
Continuous
recording:
Approx. 13
hours
Continuous
play: Approx.
41 hours
Continuous
recording:
Approx. 22
hours
Continuous
play: Approx.
59 hours
Continuous
recording:
Approx. 30
hours
Continuous
play: Approx.
71 hours
When using one, commercially
available, high capacity, "AA"
size (LR6), alkaline battery with
the rechargeable battery (fully
charged)
Continuous
recording:
Approx. 28
hours
Continuous
play: Approx.
72 hours
Continuous
recording:
Approx. 42
hours
Continuous
play: Approx.
100 hours
Continuous
recording:
Approx. 57
hours
Continuous
play: Approx.
122 hours
Reference input
level Input impedance
MIC H 0.25 mV 10 k ohms
MIC L 2.5 mV 10 k ohms
LINE 100 mV 20 k ohms
Specified
output Maximum output level Load imped- ance
Earphones - 8 mW + 8
mW 32 ohms
LINE 250 mV (-12
dB) - 10 kohms
The continuous recording time is for analogue inputs when the volume level is set to "VOL 0".
The continuous play time shows the value when the volume level is set to "VOL 15".
The above values are the standard values when the unit is charged and used at an ambient temperature of 25˚C (77˚F).
The operating time when using an alkaline battery may be different, depending on the type and manufacturer of the battery,
and on the operating temperature.
The setting for the REMOTE LCD is set to "AUTO OFF".
Specifications for this model are subject to change without prior
notice
For MD-DR480H

MD-DR470H/MD-DR480H
– 5 –
NAMES OF PARTS
Main unit
1. Stop/Power Off/Hold Button
2. Group Button
3. Fast Forward/Fast Reverse/Recording Level/
Name Select Buttons
4. Play/Pause Button
5. Record Button
6. Menu Button
7. Display Button
8. Volume Buttons
9. 5 V DC Input Socket
10. Battery Connection Terminals
11. Optical/Line Input Socket
12. Microphone Input Socket
13. Remote Control/Earphones/
Line Output Socket
14. Open Lever
15. Rechargeable Battery Cover
16. Record Indicator
17. TOC Indicator
18. Level Meter
19. Repeat/Random Indicators
20. Synchro Recording Indicator
21. Disc/Group/Track Information Indicators
22. Battery Indicator
23. Alarm Indicator
24. Disc Mode Indicator
25. Character/Time Information Indicator
26. Recording Mode Indicators
27. Group Indicator
28. My Entry Indicator
1
2
3
4
5
6
7
8
10
9
11
12 13 14 15
16 17 18 19
20
21
26 27 28
22
23
24
25
Remote control unit
1. Earphones Socket
2. Bass Button
3. Display Button
4. Mode Button
5. Group Button
6. Volume Buttons
7. Stop/Power Off Button
8. Fast Reverse Button
9. Play/Pause Button
10. Fast Forward Button
11. Hold Switch
12. Disc Mode Indicator
13. Total Track Number Indicator
14. Track Number Indicator
15. Character/Time Information Indicator
16. Random Indicator
17. Repeat Indicator
18. Synchro Recording Indicator
19. Record Indicator
20. Group Indicator
21. My Entry Indicator
22. Battery Indicator
23. Recording Mode Indicators
11
1
867 10
245
12
18
13 14 15 16 17
19 20 21 22 23
3
9

MD-DR470H/MD-DR480H
– 6 –
1 Bottom Cabinet 1. Remove the rechargeable . 6-2
battery cover as indicated
by the arrow.
2. Screw .....................(A1) x5 6-1
2 Main PWB 1. Screw .....................(B1) x3 6-2
2. Flexible PWB..........(B2) x3
3 Top Cabinet 1. Open the Top cabinet. 6-1
2. Screw .................... (C1) x4 6-2
4 MD Mechanism 1. Remove the center cabinet 6-3
as indicated by the arrow.
2. Screw .................... (D1) x1
5 LCD Unit/ 1. Screw ......................(E1) x2 6-4
Operation Button
Flexible PWB Ass'y
DISASSEMBLY
Cares before disassembling
When assembling the machine after disassembling or
repair, observe the following requirements so as to ensure
safety and performance.
1.Removethebatteriesfromthemachine,andtakeoutthe
mini-disc.
2. When assembling after repair, be sure to position the
wires in the same location.
Use the specified screws to fix the cabinet and the
mechanismunit. Theuseof thescrewswithlength other
than specified may cause contact with the mechanism
unit resulting in malfunction.
3.Whenrepairing,paycloseattentionsonottodamagethe
IC from static electricity.
REMOVAL PROCEDURE
STEP FIGURE
Figure 6-1
Figure 6-2
Figure 6-4
Caution:
Carefullyhandlethe main PWBandflexible PWB. Afterremovingthe
flexible PWB (1*) for the optical pickup from the connector, do not
touch directly the front end of flexible PWB with your hand so as to
prevent damage of optical pickup by static electricity.
Figure 6-3
OPEN
OPEN
Top Cabinet
Bottom Cabinet
EJECT
Knob
(A1)x2
ø1.4x1.5mm
(A1)x1
ø1.4x1.5mm
(A1)x1
ø1.4x1.5mm
(A1)x1
ø1.4x1.5mm
OPEN
(B1)x3
ø1.4x2.5mm
Pull
Pull
Battery
Cover
Center Cabinet
Top Cabinet
Main PWB
1
2
(B2)x1(1*)
(B2)x1
EJECT Frame
Ass'y
(B2)x1
(C1)x2
ø1.4x1.5mm
(C1)x2
ø1.4x1.5mm
OPEN
MD Mechanism
(D1)x1
ø1.4x1.5mm
Center Cabinet
EJECT Frame Ass'y
Main Frame Ass'y
(E1)x2
ø1.4x2.5mm
Operation Button
Flexible PWB Ass'y
LCD Unit
Top Cabinet

MD-DR470H/MD-DR480H
– 7 –
REMOVING AND REINSTALLING THE MAIN PARTS
Remove the MD mechanism according to the disassembling
methods 1 to 4. (See Page 6.)
Figure 7-1
Figure 7-2
Figure 7-3Figure 7-4
How to remove the spindle motor
(See Fig. 7 -1.)
1. Remove the solder joints (A1) x 4 of flexible PWB.
2. Remove the screws (A2) x 3 pcs., and remove the spindle
motor.
How to remove the lift motor (See Fig. 7-2.)
1. Remove the solder joints (B1) x 2 of lift motor lead wire.
2. Remove the screw (B2) x 1 pc., and remove the lift motor.
Note:
Take care so that the motor gear is not damaged.
(If the gear is damaged, noise is caused.)
How to remove the sled motor (See Fig. 7-3.)
1.Remove thestopwasher(C1)x 1pc.,and removethedrive
gear (C2) x 1 pc.
2. Remove the screws (C3) x 2 pcs.
3. Remove the solder joints (C4) x 3 of flexible PWB., and
remove the sled motor.
Note:
Take care so that the motor gear is not damaged.
(If the gear is damaged, noise is caused.)
How to remove the magnetic head ass'y
(See Fig. 7 -4.)
1.Removethescrews(D1)x2pcs.ofthemagneticheadass'y
and the optical pickup, and remove the solder joints
(D2) x 2 of the head flexible plate.
Note:
Mount carefully so as not to damage the magnetic head.
How to reinstall the optical pickup
(See Fig. 7-4.)
1.Remove the screw(E1)x 1 pc.,andremove the gripspring.
2. Remove the screw (E2) x 1 pc. to remove the thrust
spring, and remove the drive screw and the optical
pickup from MD mechanism.
Then, remove the drive screw from the optical pickup.
(A2)x3
ø1.4x1.8mm
MD Mechanism
Spindle Motor
Solder Joints
(A1)x4
Solder Joints
(B1)x2
Lift Motor
MD Mechanism
(B2)x1
ø1.4x3.3mm
(C1)x1
(C2)x1
(C3)x2
ø1.4x1.2mm
Sled Motor
Solder
Joints
(C4)x3
MD Mechanism
(E2)x1
ø1.4x1.2mm
(E1)x1
ø1.4x1.8mm (D1)x2
ø1.4x1.8mm
Thrust
Spring
Optical Pickup
Magnetic
Head Ass'y
Drive Screw
Grip Spring
MD Mechanism
Solder
Joints
(D2)x2

MD-DR470H/MD-DR480H
– 8 –
Entering the TEST mode
1.Setting bythe mainunitoperation (whenin thestand-by
mode)
1 Keep holding down the VOLUME + button and press the
PLAY button.
2 With the PLAY button pressed, release the VOLUME +
button.
3 With the PLAY button pressed, release the VOLUME –
button.
4 Keep holding down the VOLUME – button, release the PLAY
button and then release the VOLUME – button.
5 The test mode stops, and [ T E S T _ ] appears.
2. Setting by the remote control operation (when in the
stand-by mode)
1 Switch the HOLD button from OFF to ON.
2 Hold down the VOLUME – button.
3 With the VOLUME – button pressed, switch the HOLD
button to from ON to OFF. (Complete steps 1 to 3 within 2
seconds.)
1 High reflection disc MMD-110 (TEAC Test MD) 88GMMD-110
2 Low reflection disc MMD-213A (TEAC Test MD) 88GMMD-213A
3 Low reflection disc Recording mini disc UDSKM0001AFZZ
4 Extension cable Performance test (extension cable for motors) QCNWN6936AFZZ
5 Extension relay PWB Performance test (extension relay PWB for motors) RUNTK0613AFZZ
ADJUSTMENT
Test disc
MD adjustment needs two types of disc, namely recording disc (low reflection disc) and playback-only disc (high
reflection disc).
Type Test disc Parts No.
Note: Use the low reflection disc on which music has been recorded.
Figure 8
Extension Relay PWB
(RUNTK0613AFZZ)
Extension Cable
(QCNWN6936AFZZ)
MD Mechanism
Mechanism Flexible PWB
CN601
Operation Button
Flexible PWB Ass'y
CN451
CN101
MAIN PWB
Optical Pickup (17)
LCD Unit (227)
4 Keep holding down the VOLUME – button and release the
PLAY button.
5 With the PLAY button pressed, release the VOLUME –
button and then release the PLAY button.
6 The test mode stops, and [ T E S T _ ] appears.
7 Press “VOLUME +” to check the version of the microcom-
puter. (It is displayed on the remote control only.)
8 Press “VOLUME –” to light up the whole LCD.
Leaving the TEST mode
1 Press the STOP button in the test mode stop state, and with
the version displayed or the whole LCD on.
2 Update the rewritable area of EEPROM.
3 Switch to the standby mode.
Shipping setting method
1 Keep holding down the VOLUME – and the PLAY button on
the main unit, and then plug in the AC adapter.
2 Make sure [INIT] changes to [BYE OK] on the main unit or
the remote control.

MD-DR470H/MD-DR480H
– 9 –
1. AUTO1 Mode
• When the STOP button is pressed while the AUTO1 menu appears
or during automatic adjustment, the mode changes to the TEST
mode stop state. At this time the adjustment value is not output.
• Be sure to adjust, using the specified disc MMD-213A.
•AdjustmentNG; Adjustment item out ofrange,focusONfailure,and
adjustment error.
• When the PLAY button is pressed while ADJ. OK is displayed,
AUTO2 is executed.
2. AUTO2 Mode
• When the STOP button is pressed while the AUTO2 menu appears
or during automatic adjustment, the mode changes to the TEST
mode stop state. At this time the adjustment value is not output.
•AdjustmentNG;Adjustmentitemoutofrange,andadjustmenterror.
• When the PLAY button is pressed while ADJ. OK is displayed,
TEST_PLAY is executed.
3. MANU1 Mode
•AdjustmentitemtobemadeinAUTO1modeisperformedmanually.
• When the VOLUME + button is pressed during adjustment, the
setting increases, and the new setting is output.
• When the VOLUME – button is pressed during adjustment, the
setting decreases and the new setting is output.
• If the VOLUME +/– button is held down, the setting changes
continuously with 100 ms cycle.
*In this operation, the setting change is performed for each digit.
The digit is changed by pressing the REC button.
• If the setting is within the allowable range, the RND display lights.
•WhentheSTOPbuttonispressedduringMANU1menuormeasure-
ment or adjustment, the state is changed to the TEST mode stop
state.
4. MANU2 Mode
•AdjustmentitemtobemadeinAUTO2modeisperformedmanually.
• When the VOLUME + button is pressed during adjustment, the
setting increases, and the new setting is output.
• When the VOLUME – button is pressed during adjustment, the
setting decreases and the new setting is output.
• If the VOLUME +/– button is held down, the setting changes
continuously with 100 ms cycle.
*In this operation, the setting change is performed for each digit.
The digit is changed by pressing the REC button.
• If the setting is within the allowable range, the RND display lights.
1. AUTO 1 Mode • Perform preliminary automatic adjustment.
• If the combination of mechanism and pickup PWB
has been changed, be sure to start from AUTO1.
2. AUTO 2 Mode • Perform ATT (attenuator) automatic adjustment.
• Perform continuous playback. (error rate display,
jump test.)
3. PLAY Mode • Continuous playback from the specified address is
performed.
• 1 jump or 10 jumps and manual movement.
• C1 error rate display (pit section), ADIP error rate
display (groove section).
• The temperature correction is performed only when
servo start is performed, but the posture correction
is not performed during continuous playback.
4. REC Mode • Continuous record from the specified address is
performed.
• Change of record laser output. (servo gain is also
changed according to laser output.)
• The temperature correction is performed only when
servo start is performed, but the posture correction
is not performed during continuous recording.
5. MANU 1 Mode • Temperature is displayed.
• Seeing the displayed adjustment value, perform
preliminary manual adjustment.
(Error rate indication, jump test.)
6. MANU 2 Mode • Temperature is displayed.
• Seeing the displayed adjustment value, perform
ATT (attenuator) manual adjustment.
• Continuous playback is performed.
(error rate display, jump test.)
7. E_DATA display • Error information is displayed.
Mode • Error information is initialized.
8. NORMAL Mode • The mode is changed from the TEST mode to the
normal mode without adjustment.
• In the normal mode the internal operation mode,
memory capacity, etc. areindicated.
• In the normal mode both temperature correction
and posture correction are performed.
9. EEPROM Mode • Factors of digital servo are changed manually.
• Cut-off frequency of BASS1, BASS2 and BASS3 is
changed manually.
• Temperature detection terminal voltage is
measured, and the reference value is set.
• Defaults are selected and set.
• Setting of EEPROM protect area is updated.
Test Mode
•WhentheSTOPbuttonispressedduringMANU2menuormeasure-
ment or adjustment, the state is changed to the TEST mode stop
state.
• When the PLAY button is pressed in B-ATT set state, the mode is
changed to the continuous playback mode.
• As for operation during continuous playback refer to "PLAY mode
explanation".
5. PLAY Mode
• When the STOP button is pressed while the PLAY menu appears,
or in PLAY or continuous playback mode, the mode changes to the
TEST mode stop state.
• When the PLAY button is pressed while the PLAY menu appears,
continuous playback is initiated from the current pickup position.
• Whenever the DISP button is pressed in the PLAY menu, the target
address changes as follows.
0032 →03C0 →0700 →08A0 →0950 →0032 →•••
When the PLAY button is pressed while a target address is dis-
played, continuous playback is performed after searching that
address.
• Each time the REC button is pressed while the PLAY mode target
address is displayed, the digit which is changed by pressing the
FORWARD/REVERSE button is changed as follows.
0032 →0032 →0032 →0032 →•••
• When the FORWARD button is pressed in the PLAY mode target
address is displayed, the digit of address specified by the REC
button is set to +1h. (0 to F)
• When the REVERSE button is pressed in the PLAY mode target
address is displayed, the digit of address specified by the REC
button is set to -1h. (0 to F)
* When the fast FORWARD/REVERSE button is kept pressed, the
selected digit number continuously varies in a cycle of 100 ms.
• IfyoupresstheBASSbuttonontheremotecontrolinthecontinuous
playback mode, the number of jumps changes as follows.
1 →10 →100 step →1 •••
* After the number of jump lines is indicated for one second, the
address indication is restored. [ T R _ ]
• When the FORWARD button is pressed in the continuous playback
mode,thespecifiednumberoflinesisjumped in the FWD direction.
• When the REVERSE button is pressed in the continuous playback
mode, the specified number of lines is jumped in the REV direction.
* When the FORWARD/REVERSE button is held down, jump is
repeated every approx. 100 ms.
• Whenever the DISP button is pressed in the continuous playback
mode, the indication changes as follows.
Operation in each TEST mode

MD-DR470H/MD-DR480H
– 10 –
* Pre-mastered disc
Continuous playback [ S Q ]
(SUBQ address indication)
↓
Continuous playback (C1 error indication) [ C E ]
↓
Continuous playback [ S Q ]
(SUBQ address indication)
* Recordable disk
Continuous playback [ A P ]
(ADIP address indication)
↓
Continuous playback (C1 error indication) [ C E ]
↓
Continuous playback (ADIP error indication)[ A E ]
↓
Continuous playback [ b ]
(Integrating jitter indication)
↓
Continuous playback [ A P ]
(ADIP address indication)
6. REC Mode
• When the STOP button is pressed while the REC menu appears, or
in the REC mode or continuous record mode, the mode changes to
the TEST mode stop state.
• Whenever the DISP button is pressed in the REC menu, the target
address changes as follows.
0032 →03C0 →0700 →08A0 →0950 →0032 →•••
When the PLAY button is pressed while a target address is dis-
played, continuous playback is performed after searching that
address.
• Whenever the REC button is pressed in the REC mode target
address is displayed, the digit which is changed by the VOLUME +/
– button changes as follows.
0032 →0032 →0032 →0032 →•••
• When the FORWARD button is pressed in the REC mode target
address is displayed, the digit of address specified by the REC
button is set to +1h. (0 to F)
• When the REVERSE button is pressed in the REC mode target
address is displayed, the digit of address specified by the REC
button is set to -1h. (0 to F)
* When the FORWARD/REVERSE button is held down, the setting
changes continuously, one cycle being 100 ms.
• When the VOLUME +/– button is pressed in the REC mode or
continuous record mode, the laser record power changes.
(Servo gain changes also according to record power.)
* After the laser record power is indicated for one second, the
address indication is restored. [ R P W _ ]
• : Address
• : Laser power cord
• Operation is disabled if the premastered disc or disc is in miserase-
protected state.
7. NORMAL Mode
• When the STOP button is pressed while the NORMAL menu
appears, the mode changes to the TEST mode stop state.
• Indication during operation Indication of memory capacity on main
unit LCD [ _ _ ] + Level meter
: Internal mode
: Address (Cluster section)
: Address (Sector section)
• Selection of sound volume, BASS, etc. is possible. (without indica-
tion)
• Recording is also possible.
• If the STOP button is pressed during operation in the NORMAL
mode,theNORMAL modeiscancelled,andthepoweristurnedoff.
8. E_DATA display Mode
• Reversing when REVERSE button is pressed.
• When the STOP button is pressed while the error data indication
menu appears or during error data indication, the mode changes to
the TEST mode stop state.
• Error data 0 is the latest error.
•ErrorwhichoccurredintheTESTmodeisalsostoredinthememory.
• When the DISP button is pressed while the error data indication
menu appears, the error data is initialized.
[ C L E A R _ ]
: Error Code
13 h : Adjustment servo retraction excessive retrial
16 h : C. IN detection time-over
17 h : A, B, E, F, and TCRSO offset measurement value out of
tolerable range
21 h : Focus retraction completion allowable time-over
22 h : Unable to activate the spindle motor
23 h : Track search completion allowable time-over
32 h : P-TOC read failure
42 h : U-TOC read failure
44 h : U-TOC write data write disabled/read check error
45 h : U-TOC write test failure
52 h : SD write data write disabled
72 h : EEPROM data read check sum error
73 h : Record head drive disabled (by EJECT lever)
82 h : Power overvoltage detection
83 h : The temperature sensor output error
91 h : Ambient temperature is higher that the allowable temperature
Explanation of error history code
Can't READ (*)
* = f : Focus pulled
a : Servo adjustment
s : Track search
r : TOC information reading
p : Spindle start
Er-MD (**)
** = 80
“Er-MD80”appearswhenEEPROMdatacannotbereadcorrectly
(inconsistency of data and the checksum results).
EEPROM or communication paths including the microcomputer
may be defective.
WhenyouchangeEEPROM,resetdatabyreferringtotheservice
manual.
** = 41
“Er-MD41” appears when writing U-TOC fails. (Only recorders)
(Reading of the written data reveals errors.)
The record head, the recording signal generator circuit including
system LSI or the pickup laser may be defective.
TOC Form (*)
* = t_ : TNO information
a_: Address information
Ln: Pointer information
(n = 0, 1, 2 or 4: UTOC sector number)
Error messages

MD-DR470H/MD-DR480H
– 11 –
[1] Measurement, calculation and setting procedure.
1 Set the TEST mode.
2 Activate the “Temp” menu in the “EEPROM” mode.
• In the test mode stop state, press the MENU button,
SKIP-DOWN button (three times), and PLAY button
(twice) in this order.
• “TM$$%%” appears. ($$ = temperature code, %% =
temperature reference value)
3 “TPin##”willappearwhenpressingtheSKIP-UPbutton
once. (## = TEMP input AD value)
4 Calculatethetemperaturecorrection value by referring
to the ambient temperature and the “Temperature
measurement value correction table”.
5 Calculatethetemperaturereferencevalueaccordingto
the formula below.
• Temperature reference value = Microcomputer TEMP input
AD value + Temperature correction value
6 Press the SKIP-DOWN button once to display “TM$$%%”.
Press the VOLUME –/+ button to set “%%” to the value
calculated in step 5 .
7 Check if the temperature code ($$) is the same as in the
“Temperature measurement value correction table”
Ambient
temperature Temperature
correction
+ 8 oC ~ +10 oC - 05 h + 9.2 oC
+11 oC ~ +13 oC - 04 h + 12.1 oC
+14 oC ~ +16 oC - 03 h + 14.9 oC
+17 oC ~ +19 oC - 02 h + 17.8 oC
+20 oC ~ +22 oC - 01 h + 20.7 oC
+23 oC ~ +25 oC±00 h + 23.6 oC
+26 oC ~ +27 oC + 01 h + 26.5 oC
+28 oC ~ +30 oC + 02 h + 29.4 oC
+31 oC ~ +33 oC + 03 h + 32.3 oC
Center
temperature
Ambient
temperature Temperature
correction Center
temperature
- 8 oC ~ +10 oC 08 h + 0.5 oC
+ 3 oC ~ +21 oC 07 h + 12.0 oC
+14 oC ~ +33 oC 06 h + 23.6 oC
+26 oC ~ +43 oC 05 h + 35.0 oC
[2] Temperature measurement value correction table.
Temperature reference setting method.
[3] Temperature code identification.
EEPROM DATA LIST (EEPROM version : Y06BhX)
F G 1 _ 40 H
F G 2 _ 90 H
F F 0 _ 10 H
F F 1 _ 70 H
F F 2 _ E5 H
F f 0 _ 10 H
F f 1 _ 48 H
F f 2 _ EA H
F Z H _ ED H
F L n _ 09 H
F L p _ 06 H
D J G _ 0E H
F S S _ 28 H
F T S _ 18 H
F S B _ 40 H
F T B _ 28 H
F G M _ 66 H
T V G _ 84 H
T O 1 _ 50 H
T O 5 _ 58 H
T O R _ 58 H
P L E _ 8B H
R F T _ 00 H
Item display Set values
Fucus setting
S P G _ 30 H
S P i _ 9A H
S P m _ 62 H
S P o _ 4F H
P G M _ E0 H
S P 1 _ 10 H
S P 2 _ 60 H
S P 3 _ F2 H
S P 4 _ F2 H
S P 5 _ 10 H
S p 2 _ 60 H
S p 5 _ 10 H
S D 1 _ 7F H
S D 2 _ 7F H
S P K _ EB H
M P G _ 28 H
S P L _ 60 H
S P W _ 0F H
S P B _ 66 H
S R i _ C0 H
S R m _ 9A H
S R o _ 7B H
S B R _ 60 H
O S L _ 14 H
P J G _ 46 H
Item display Set values
Spindle setting

MD-DR470H/MD-DR480H
– 12 –
H Q 1 _ 90 H
H Q 2 _ 90 H
H S G _ 11 H
H S O _ FF H
L Q 1 _ 90 H
L Q 2 _ 90 H
L S G _ 12 H
L S O _ 00 H
G Q 1 _ 98 H
G Q 2 _ 84 H
G S G _ 12 H
A L S _ 3F H
R C N _ 00 H
E Q R _ 00 H
S K S _ 7F H
S K L _ 7F H
S L C _ 22 H
S T L _ 08 H
S T M _ 42 H
S T E _ A6 H
S D V _ 60 H
S J P _ 03 H
W T m_ 18 H
S R V _ 54 H
S L T _ 58 H
M V S _ 0A H
S L S _ 28 H
S K E _ 25 H
S D E _ 1C H
B P E _ 71 H
B P W _ 75 H
B P 1 _ 43 H
B R E _ 94 H
B R W _ 34 H
S R S _ 00 H
T G 1 _ 17 H
T G 2 _ 40 H
T F 0 _ 10 H
T F 1 _ 70 H
T F 2 _ E0 H
T f 0 _ 10 H
T f 1 _ 40 H
T f 2 _ E4 H
T F S _ 00 H
T B o _ 20 H
T B t _ 34 H
T K o _ 20 H
T K t _ 32 H
T K T _ 16 H
T D o _ 67 H
T D t _ 0E H
T D T _ 16 H
S C o _ 00 H
S C t _ 3A H
S C m _ 48 H
C L p _ 24 H
C L r _ 38 H
J P I _ 0E H
T H P _ 02 H
T H G _ 02 H
T 0 P _ F0 H
T 0 G _ EF H
T 1 P _ 18 H
T K n _ 11 H
T K N _ 26 H
T K L _ 40 H
Item display Set values
Tracking setting
Item display Set values
Sled setting
B S 0 _ 00 H
B S 1 _ 00 H
B S 2 _ 50 H
B S 3 _ 00 H
B S 4 _ 00 H
B S 5 _ 00 H
B S 6 _ 00 H
B S 7 _ 22 H
B S 8 _ 00 H
Item display Set values
BASS setting
C O K _ 28 H
F A T _ C0 H
T A T _ 3E H
C A T _ 40 H
F A B _ 64 H
Item display Set values
ADJ. SET setting
Digital EQ setting
Item display Set values

MD-DR470H/MD-DR480H
– 13 –
C T 0 _ 07 H
C T 1 _ 01 H
C T 2 _ BB H
C T 3 _ 50 H
U S A _ 18 H
R C E _ 94 H
X 2 T _ FF H
S D F _ 1F H
F B O _ FC H
B H S _ 01 H
F B L _ 16 H
M C 2 _ 00 H
M C 4 _ 00 H
L 2 H _ 81 H
L 4 H _ 80 H
B S 0 _ 3A H
B S 1 _ 98 H
B U 0 _ 01 H
B D 0 _ 05 H
B D 1 _ DC H
B M K _ 1E H
C S T _ 65 H
I J U _ 81 H
I J D _ 55 H
M C T _ A1 H
E R C _ 5A H
C V 0 _ 27 H
C V 1 _ 10 H
S S K _ E9 H
A C T _ 60 H
C 1 E _ 52 H
A D E _ C0 H
L C V _ 12 H
R C 0 _ D7 H
R C 1 _ D6 H
R 2 0 _ 80 H
R 2 1 _ 20 H
R 4 0 _ BF H
R 4 1 _ 02 H
MF P _ 4B H
S P M _ 00 H
M S L _ 00 H
U S 0 _ 00 H
U S 1 _ 00 H
U S 2 _ 00 H
w E 0 p 54 H
w E 2 _ 46 H
w E 3 p 05 H
w E 3 g 00 H
Item display Set values
Control setting
Item display Set values
w E A _ 16 H
w E F _ 00 H
K 1 0 _ 0F H
K 1 1 _ 8E H
R M 0 0 59 H
R M 0 1 30 H
R M 0 2 36 H
R M 0 3 42 H
R M 0 4 0C H
R M 0 5 0D H
R M 0 6 3F H
R M 0 7 30 H
R M 0 8 42 H
R M 0 9 5F H
R M 0 A 41 H
R M 0 B 5F H
R M 0 C FD H
R M 0 D 6F H
R M 0 E 40 H
R M 0 F 0D H
R M 1 0 FC H
R M 1 1 33 H
R M 1 2 3F H
R M 1 3 0D H
R M 1 4 10 H
R M 1 5 0D H
R M 1 6 B6 H
R M 1 7 60 H
R M 1 8 FD H
R M 1 9 B6 H
R M 1 A 9E H
R M 1 B 0C H
R M 1 C 7E H
R M 1 D BF H
R M 1 E 90 H
R M 1 F 30 H
R M 2 0 7E H
R M 2 1 5E H
R M 2 2 FB H
R M 2 3 03 H
R M 2 4 FC H
R M 2 5 64 H
R M 2 6 B6 H
R M 2 7 0D H
R M 2 8 00 H
Item display Set values
ROM Correction setting

MD-DR470H/MD-DR480H
– 14 –
(During the spare style automatic adjustment.)
(During the focus balance adjustment.)
(During the adjustment that ATT is automatic.)
Normality completion.
(Adjustment completion.)
(Continuance is regenerating.)
It confirms that an address proceeds.
PLAY
PLAY
A U T O 1
Do the following when replacing the mechanism, the pickup, the
EEPROM (IC402), the LSI (IC201) or the main PWB unit.
A D J . O K
A T 2
A T 1
Before you replace EEPROM, be sure to set the EEPROM set value to the latest version.
(Note) After that, be sure to perform the shipment setting.
(The battery indicator starts to operate correctly after you complete the setting.)
The indication of RANDOM
A P # # # #
Indication disappears.
All the supply of the power supply is turned off.
B Y E O K
STOP is 2 pushed.
Remote controller MODE button.
A D J . O K
Enter the test mode, move the pickup to the most internal periphery and execute AUTO1.
(Use the disc of MMD-213A.)
PLAY is pushed.
Normality completion.
(In such cases as the battery.)
Performance mode = Normal
Playback volume = 28
LINE REC volume = 30
Microphone REC volume = 20
Resume setting = Cancellation
: To the test mode stop ([Test mode menu])
Volume
Up
Volume
Down : Version indication 2 seconds
EEPROM version
Test Mode Start · Completion method
All the lighting
T E S T
• Starting method of the test mode
When the unit is in the stand-by state (with no display), the test mode is started by performing
the following operation using the remote control.
Switch the [HOLD] button from OFF to ON.
Keep holding down the [VOLUME DOWN] button and switch the [HOLD] button from ON to OFF within
2 seconds, and then press the [PLAY] button.
Keep holding down the [PLAY] button, release the [VOLUME DOWN] button and then the [PLAY] button.
: LCD all the lighting two seconds
Destination
Program version
• How to cancel the test mode
T E S T
B Y E
B Y E O K
POWER OFF
: Test mode stop
: [OK] or [NG]
Check the microcomputer RAM and EEPROM with
the contents of the preliminary adjustment.
Pickup position initialisation
EEPROM contents renewal.
STOP
Indication after the start :

MD-DR470H/MD-DR480H
– 15 –
: Test mode stop
: Pre-automatic adjustment menu
: ATT auto adjustment menu
: EEPROM setting menu
MENU
T E S T
Slide external
periphery move Slide internal
periphery move
Change of Test Mode Menus
A U T O 1
A U T O J
A U T O 2
SKIP UP SKIP DOWN
SKIP UP SKIP DOWN
SKIP DOWN
SKIP UP SKIP DOWN
SKIP UP SKIP DOWN
SKIP UP SKIP DOWN
SKIP UP SKIP DOWN
T R E C
T P L A Y
SKIP UP SKIP DOWN
SKIP UP SKIP DOWN
: Error history display menu
E E P R O M
SKIP UP SKIP DOWN
SKIP UP
SKIP DOWN
SKIP UP
* When the [STOP] button is pressed in specific menu, the "TEST MODE STOP" state is set.
* When the [VOLUME UP] button is pressed in the "TEST MODE STOP" state, the program version
is displayed for 2 seconds.
* When the [VOLUME DOWN] button is pressed in the "TEST MODE STOP" state, all the displays
appear for 2 seconds.
: Pre-manual adjustment menu
: ATT manual adjustment menu
: Continuous playback menu
M A N U 1
: Continuous record menu
M A N U 2
: Test mode normal play menu
E D A T A
N O R M A L
: Digital input signal monitor menu
SKIP UP SKIP DOWN
SKIP UP SKIP DOWN
: Pre-adjustment value check menu
D i n M o n
SKIP UP SKIP DOWN
: ATT adjustment value check menu
R S L T 1
R S L T 2

MD-DR470H/MD-DR480H
– 16 –
: Pre-automatic adjustment menu
Adjustment error
: Pre-adjustment error (adjustment value output)
: During pre-automatic adjustment
Adjustment error
Normal end
: Pre-adjustment normal end (adjustment value output)
: During ATT automatic adjustment
PLAY
PLAY
A U T O 1
Servo Pre-automatic Adjustment
A D J . O K
A D J . N G
A T 2
A T 1
* When the [STOP] button is pressed in specific menu, the "TEST MODE STOP" state is set.
* Move the pickup lens manually to the innermost periphery before performing the servo
preliminary auto adjustment. (Refer to "Change of test mode menus" for the operation method.)
* " " is the internal processing number, the meanings of the numbers are as follows.
0 2 : ABEF input offset measurement
0 4 : AB input (ABMAXO) level setting
0 5 : Focus ATT tentative setting
0 6 : Pit section EF input level setting
0 7 : COUT level setting for pit section adjustment
0 8 : Sled external periphery move
0 9 : Groove section EF input level setting
1 0 : COUT level setting for groove section adjustment
1 1 : TCRS input level setting
1 2 : Tracking ATT initial setting
1 3 : AB input (LPFABO) level setting
1 4 : Focus ATT initial setting
1 6 : TCRS input offset measurement
* It is necessary for each test mode where servo operation is made to complete the preliminary
adjustment. (Otherwise, "ErADJ." appears.)
* The preliminary adjustment complete state is stored on the EEPROM (protected field).
: ATT auto adjustment menu
: ATT adjustment error (adjustment value output)
: During ATT auto adjustment
Adjustment error
Normal end
: ATT adjustment error (adjustment value output)
: Continuous playback (high reflection)
: Continuous playback (low reflection)
PLAY
PLAY
A U T O 2
Servo ATT Auto Adjustment
A D J . O K
A D J . N G
S Q # # # #
A P # # # #
A T 2
* When the [STOP] button is pressed in specific menu, the "TEST MODE STOP" state is set.
* Move the pickup lens manually to the innermost periphery before performing the servo
ATT auto adjustment. (Refer to "Change of test mode menus" for the operation method.)
* " " represent the adjustment number as follows.
0 0 : Initial setting
0 3 : Pit section tracking ATT setting
0 4 : Pit section focus ATT setting
0 6 : Sled external periphery move (low reflection only)
0 7 : TCRS ATT setting (low reflection only)
0 8 : Groove section tracking ATT setting (low reflection only)
0 9 : Groove section focus ATT setting (low reflection only)

MD-DR470H/MD-DR480H
– 17 –
: Continuous playback menu
SQ : Continuous playback (pit section)
AP : Continuous playback (groove section)
# # # # : Address
: Continuous playback (pit section)
: Continuous playback (groove section)
# # # # : Address
Continuous Playback
* When the [STOP] button is pressed in specific menu, the "TEST MODE STOP" state is set.
* In the start address set state the start address changes as follows when the [DISP] button is pressed.
0 0 3 2
H (initial value) 0 3 C 0 H 0 7 0 0 H0 8 A 0 H
A d 0 0 3 2 A d 0 3 C 0 A d 0 7 0 0 A d 0 8 A 0
* In the start address setting state the start address change digit changes when the [REC] button is pressed.
1st digit (initial value) 2nd digit 3rd digit
A d 0 0 5 0 A d 0 0 5 0
REC A d 0 0 5 0
• Continuous playback from current pickup position
: Continuous playback menu
: Start address setting
DISP
T P L A Y
A d 0 0 3 2
PLAY
S Q # # # #
A P # # # #
• Continuous playback from any address
* In the start address set state the value of selection digit changes in the range of "0h to Fh"
when the [SKIP UP/DOWN] button is pressed.
* If the [REC] button is pressed in the continuous playback state, the mode is changed to the B-ATT setting
state of the ATT manual adjustment.
A d 0 9 5 0
PLAY
T P L A Y
S Q # # # #
A P # # # #
AUTO1 Practice finish ?
AUTO2 Practice finish ?
YES
YES
E r A D J
AUTO2 Practice
No error ?
A D J. N G
NO
NO
YES
NO
0 9 5 0
H
REC
H B
L B
S Q # # # #
A P # # # #
: Continuous playback (pit section)
: Continuous playback (groove section)
# # # # : Address
: High-reflection pit section B-ATT (focus) setting
: Low-reflection groove section B-ATT (focus) setting
: ATT setting
REC
REC
* In the continuous playback state the number of jump lines changes as follows shown
the [Remote Controller BASS] button is pressed.
1 (initial value) 10
1 T R 1 0 T R 1 0 0 s t p
* When the [SKIP UP] button is pressed in the continued playback mode, jump of specified
number of lines occurs in the external periphery direction.
If the key is held down jump occurs continuously. (100 ms cycle)
* When the [SKIP DOWN] button is pressed in the continuous playback mode, jump of
specified number of lines occurs in the internal periphery direction.
If the key is held down, jump occurs continuously. (100 ms cycle)
• Focus balance Adjustment mode
100step
MENU
T-PLAY Each indication
b # # #
PLAY
Others indication
* The focus balance adjustment mode is available only for low reflection discs.
* The RANDOM marker lights up in the focus balance adjustment mode.
* The focus balance ( ) can be changed by the VOLUME UP/DOWN button operation.
* If the PLAY button is pressed in the focus balance adjustment mode, the unit returns to the
continuous playback mode.
: Continuous playback menu
: Focus balance Adjustment mode
: Focus balance
# # # : Jitter error

MD-DR470H/MD-DR480H
– 18 –
: Continuous record menu
Continuous Record
* When the [STOP] button is pressed in specific condition, the "TEST MODE STOP" state is set.
* In the start address set state the start address changes as follows when the [DISP] button is pressed.
• Continuous record from the current pickup position
: Continuous record menu
: Start address setting
: Continuous record
# # # #: Address
: Continuous record
# # # #: Address
DISP
T R E C
A d 0 0 3 2
PLAY
A P # # # #
• Continuous record playback from any address
A d 0 0 3 2
0 0 3 2 H (initial value) 0 3 C 0 H 0 7 0 0 H 0 8 A 0 H
A d 0 3 C 0
DISP
A d 0 7 0 0
DISP
DISP
DISP
A d 0 8 A 0
* In the start address setting state the start address change digit changes when the [REC] button is pressed.
* In the start address set state the value of selection digit changes in the range of 0h to Fh when
the [SKIP UP/DOWN] button is pressed.
* In the continuous record state and start address set state the record laser power changes in the
range of "0h to Fh" when the [VOLUME UP/DOWN] button is pressed. (Initial value 0DH)
A d 0 0 5 0
1st digit (initial value) 2nd digit 3rd digit
A d 0 0 5 0 A d 0 0 5 0
RECREC
A d 0 9 5 0
0 9 5 0 H
PLAY
T R E C
A P # # # #
AUTO1 Practice finish ?
AUTO2 Practice finish ?
YES
YES
E r A D J
AUTO2 Practice
No error ?
A D J. N G
NO
NO
YES
NO
Enter the EEPROM setting mode, and press the SKIP UP button.
Change the MSL setting value from 00 to 08 by using CTRL_ (control setting menu).
(If the MSL remains in 00, no signal is recorded.)
REC

MD-DR470H/MD-DR480H
– 19 –
REC
: Pre-Manual Adjustment menu
: Temperature code indication
$ $ : Temperature code
: A signal offset (AINO) measurement
: Measurement value
: B signal offset (BINO) measurement
: Measurement value
: E signal offset (EINO) measurement
: Measurement value
: F signal offset (FINO) measurement
: Measurement value
: Laser ON (play power)
: AB signal level measurement (ABMAXO)
: Measurement value
: A-ATT (focus) tentative setting
: ATT setting
: B-ATT (focus) tentative setting
: ATT setting
: Pit section adjustment COUT level setting
: COUT level setting
: Groove section adjustment COUT level setting
: COUT level setting
: E-ATT (tracking) initial setting
: ATT setting
: F-ATT (tracking) initial setting
: ATT setting
PLAY
M A N U 1
Servo Pre-Manual Adjustment
T M P $ $
A h
SKIP UP SKIP DOWN
B h
SKIP UP SKIP DOWN
E h
SKIP UP SKIP DOWN
F h
SKIP UP SKIP DOWN
L O N P
SKIP UP SKIP DOWN
A B
SKIP UP SKIP DOWN
S a
SKIP UP SKIP DOWN
S b
SKIP UP SKIP DOWN
e f
SKIP UP SKIP DOWN
P C H
SKIP UP SKIP DOWN
e f
SKIP UP SKIP DOWN
G C H
SKIP UP SKIP DOWN
T C
SKIP UP SKIP DOWN
S E
SKIP UP SKIP DOWN
S F
SKIP UP SKIP DOWN
SKIP UP SKIP DOWN
: Pit section EF signal level measurement (LPFEFO)
: Measurement value
: Groove section EF signal level measurement (LPFEFO)
: Measurement value
: TCRS signal level measurement (TCRSMIO)
: Measurement value
: A-ATT (focus) initial setting
: ATT setting
: B-ATT (focus) initial setting
: ATT setting
: TCRS signal offset (TCRSO) measurement
: Measurement value
a b
S A
SKIP UP SKIP DOWN
S B
SKIP UP SKIP DOWN
T H
SKIP UP SKIP DOWN
: AB input level measurement (LPFABO)
: Measurement value
* In the specific setting display state the setting change digit changes when the [REC] button is pressed.
• In the case of the setup value two digits.
1st digit (initial value) 2nd digit
• In the case of the setup value three digits.
1st digit (initial value) 2nd digit 3nd digit
* In the specific state the setting changes in the range of "0h to Fh" when the [VOLUME UP/DOWN]
button is pressed.
REC
REC REC
BASS BASS
* When the [STOP] button is pressed in specific condition, the "TEST MODE STOP" state is set.
* When you press the [Remote Controller BASS] button with the laser ON (lid open), the laser power shifts as follows.
L O N P L O N R L O N M
Play back Record power Maximum power
REC
BASS

MD-DR470H/MD-DR480H
– 20 –
S F
f i
E F
DISP
DISP
S E
e i
E F
DISP
DISP
DISP
DISP
• LPFFINO/EFMIO measurement value
• LPFEINO/EFMIO measurement value
G C H
e f
P C H
S B
a b
S A
• LPFEFO measurement value
• LPFABO measurement value
S b
A B
DISP DISP
S a
• ABMAXO measurement value
* If the [DISP] button is pressed, the display changes as follows.
: EFMIO measurement value indication
"REPEAT", "1" Mark lighting
: LPFFINO measurement value indication
"1" Mark lighting
: F-ATT (tracking) initial setting
: EFMIO measurement value indication
"REPEAT", "1" Mark lighting
: LPFEINO measurement value indication
"1" Mark lighting
: E-ATT (tracking) initial setting
: LPFEFO measurement value indication
"1" Mark lighting
: Pit section adjustment COUT level setting
: Group section adjustment COUT level setting
: LPFABO measurement value indication
"1" Mark lighting
: ABMAXO measurement value indication
"1" Mark lighting
: A-ATT (focus) tentative setting
: B-ATT (focus) tentative setting
: A-ATT (focus) tentative setting
: B-ATT (focus) tentative setting
DISP DISP
DISP DISP
: ATT manual adjustment menu
: Temperature code indication
$ $ : Temperature code
: Laser ON (play power)
: Pit section E-ATT (tracking) setting
: ATT setting
: Pit section F-ATT (tracking) setting
: ATT setting
: High reflection A-ATT (focus) setting
: Low reflection A-ATT (focus) setting
: ATT setting
: TCRS ATT setting
: ATT setting
:Groove section E-ATT (tracking) setting
: ATT setting
:Groove section F-ATT (tracking) setting
: ATT setting
: Low reflection A-ATT (focus) setting
: ATT setting
: Low reflection B-ATT (focus) setting
: ATT setting
PLAY
M A N U 2
Servo ATT Manual Adjustment
T M P $ $
L O N P
SKIP UP SKIP DOWN
P E
SKIP UP SKIP DOWN
P F
SKIP UP SKIP DOWN
H A
L a
SKIP UP SKIP DOWN
: High reflection B-ATT (focus) setting
: Low reflection B-ATT (focus) setting
: ATT setting
H B
L b
SKIP UP SKIP DOWN
G C
SKIP UP SKIP DOWN
G E
SKIP UP SKIP DOWN
G F
SKIP UP SKIP DOWN
L A
SKIP UP SKIP DOWN
L B
SKIP UP SKIP DOWN
* When the [STOP] button is pressed in specific condition, the "TEST MODE STOP" state is set.