Sharp MD-R3H User manual

MD-R3H
– 1 –
• In the interests of user-safety the set should be restored to its
originalconditionandonlypartsidenticaltothosespecifiedshould
be used.
MD-R3H
CONTENTS Page
SAFETY PRECATION FOR SERVICE MANUAL.................................................................................................................. 2
IMPORTANT SERVICE NOTES (FOR UK ONLY) ................................................................................................................ 3
SPECIFICATIONS ................................................................................................................................................................. 3
NAMES OF PARTS ............................................................................................................................................................... 4
OPERATION MANUAL .......................................................................................................................................................... 5
DISASSEMBLY...................................................................................................................................................................... 8
REMOVING AND REINSTALLING THE MAIN PARTS....................................................................................................... 11
ADJUSTMENT ..................................................................................................................................................................... 14
EXPLANATION OF ERROR DISPLAY................................................................................................................................ 29
EXPLANATION OF MECHANISM ERROR ......................................................................................................................... 30
NOTES ON SCHEMATIC DIAGRAM .................................................................................................................................. 33
BLOCK DIAGRAM ............................................................................................................................................................... 34
SCHEMATIC DIAGRAM/WIRING SIDE OF P.W.BOARD................................................................................................... 40
VOLTAGE (MD MAIN PWB) ................................................................................................................................................ 58
WAVEFORMS OF CD CIRCUIT.......................................................................................................................................... 59
WAVEFORMS OF MD CIRCUIT .......................................................................................................................................... 60
TROUBLE SHOOTING ........................................................................................................................................................ 62
FUNCTION TABLE OF IC.................................................................................................................................................... 71
PARTS GUIDE/EXPLODED VIEW
PACKING METHOD (FOR UK ONLY)
SERVICE MANUAL
SHARP CORPORATION
No. S1803MDR3H///
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
• Note for users in UK
Recording and playback of any material may require consent
which SHARP is unable to give. Please refer particularly to the
provisions of Copyright Act 1956, the Dramatic and Musical
Performers Protection Act 1956, the Perfmers Protection Acts
1963 and 1972 and to any subsequent statutory enactments and
orders.

MD-R3H
– 2 –
SAFETY PRECATION FOR
SERVICE MANUAL
WARNINGS
The ael (ACCESSIBLE EMMISSION LEVEL) of the laser
power output is less than class 1 but the laser component is
capable
of emitting radiation exceeding the limit for class 1. Therefore
it is important that the following precautions are observer
during
servicing to protect your eyes against exposure to the laser
beam.
(1) When the unit case cover is removed and LOADING SW
(SW 1956) is turned on and then PLAY SW (SW 1954
mechanism PWB) is turn on in a few second.
The laser will light for several second to detect a disk.
(2)Thelaserpower output ofthepickupunit and replacement
service parts are all factory pre-set before shipment.
Do not attempt to re-adjust the laser pick-up unit during
replacement or servicing.
(3) Under no circumstances stare into the pickup lens at any
time.
(4) If laser optical unit becomes faulty, replace the complete
laser optical unit.
(5)CAUTION-USEofcontrolsoradjustments,orpereformance
ofproceduresother thanthosespecified hereinmayresult
in hazardous radiation exposure.
(For UK)
(Except for UK)
LASER KLASSE 1
LUOKAN 1 LASERLAITE
KLASS 1 LASERAPPARAT
Laser Diode Properties
Material: GaAIAs
Wavelength: 785 nm
Pulse time: Read mode: 0.8 mW Continuous
Write mode: max 10 mW 0.5 S
min cycle 1.5 S
Repetition
CAUTION - INVISIBLE LASER RADIATION WHEN OPEN AND INTERLOCKS
DEFEATED . AVOID EXPOSURE TO BEAM .
VARNING - OSYNLIG LASERSTRALNING NAR DENNA DEL AR OPPNAD OCH
SPARRAR
AR URKOPPLADE . STRALEN AR FARLIG.
ADVARSEL - USYNLIG LASERSTRALING NAR DEKSEL APNES OG SIKKERHEDSLAS
BRYTES . UNNGA EKSPONERING FOR STRALEN .
VARO! AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA
NAKYMATON LASERSATEILYLLE . ALA KATSO SATEESEN .
VARNING - OSYNLIG LASERSTRALING NAR DENNA DEL AR OPPNAD OCH SPARREN
AR URKOPPLAD . BETRAKTA EJ STRALEN .
ADVARSEL - USYNLIG LASERSTRALING VED ABNING . NAR SIKKERHEDSAFBRYDERE
ER UDE AF FUNKTION . UNDGA UDSETTELSE FOR STRALING .
CAUTION - INVISIBLE LASER RADIATION WHEN OPEN AND INTERLOCKS DEFEATED 
AVOID EXPOSURE TO BEAM .
VARNING - OSYNLIG LASERSTRÅLNING NÄR DENNA DEL ÄR ÖPPNAD OCH SPÄRRAR
ÄR URKOPPLADE. STRÅLEN ÄR FARLIG.
ADVARSEL - USYNLIG LASERSTRÅLING NÅR DEKSEL ÅPNES OG SIKKERHEDSLÅS
BRYTES. UNNGÅ EKSPONERING FOR STRÅLEN.
VARO! AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA
NÄKYMÄTÖN LASERSÄTEILYLLE. ÄLÄ KATSO SÄTEESEN.
VARNING - OSYNLIG LASERSTRÅLING NÄR DENNA DEL ÄR ÖPPNAD OCH SPÄRREN
ÄR URKOPPLAD. BETRAKTA EJ STRÅLEN.
ADVARSEL - USYNLIG LASERSTRÅLING VED ÅBNING NÅR SIKKERHEDSAFBRYDERE
ER UDE AF FUNKTION. UNDGÅ UDSETTELSE FOR STRÅLING.

Laser Diode Properties
Material: GaAIAs
Wavelength: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW
VAROITUS! LAITTEEN KÄYTTÄMINEN MUULLA KUIN
TÄSSÄ
KÄYTTÖOHJEESSA MAINITULLA TAVALLA SAATTAA
ALTISTAA KÄYTTÄJÄN TURVALLISUUSLUOKAN 1
YLITTÄVÄLLE NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE.
VARNING - OM APPARATEN ANVÄNDS PÅ ANNAT SÄTT
ÄN I DENNA BRUKSANVISNING SPECIFICERAS. KAN
ANVÄNDAREN UTSÄTTAS FÖR OSYNLIG
LASERSTRÅLNING, SOM ÖVERSKRIDER GRÄNSEN FÖR
LASERKLASS 1.

MD-R3H
– 3 –
General
Type: MD/CD Deck
Power source: AC 230 V, 50 Hz
Power consumption: 20 W
Dimensions: Width: 430 mm (16-15/16")
Height: 118 mm (4-11/16")
Depth: 302 mm (11-15/16")
Weight: 5.1 kg (11.3 lbs)
Input sockets
Output sockets
LINE IN Pin socket Over 680 mVrms 170 mVrms
22 kohms
OPTICAL Square
IN (Optical) optical
connector
COAXIAL Pin socket 75 ohms 500 mVp-p
(Coaxial)
MIC (Micro- Stereo 600 ohms 6 mVrms
phone) socket
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
SPECIFICATIONS
MiniDisc recorder section
Type: MiniDisc recorder
Signal readout: Non-contact, 3-beem semi-conductor
laser pick-up
Audio channels: Stereo 2 channels/monaural
(long-play mode) 1 channel
Frequency response: 4 - 20,000 Hz (+0/-1 dB)
Rotation speed: 400 - 900 rpm CLV, Approx.
Error correction: ACIRC (Advanced Cross Interleave
Reed-Solomon code)
Coding: ATRAC (Adaptive TRansformed
Acoustic Coding)
Recording method: Magnetic modulation overwrite
methood
A/D, D/A converter: 1 bit
Sampling frequency: 44.1kHz
Wow and flutter: Unmeasurable (less than ±0.001%
W. peek)
Signal/noise ratio: 100 dB (1 kHz)
Dynamic range: 90 dB (1 kHz)
T.H.D. at 1 kHz: 0.008%
Compact disc player
Type: 3-disc multi-play compact disc player
Signal readout: Non-contact, 3-beem semi-conductor
laser pick-up
Rotation speed: 200 - 500 rpm CLV, Approx.
Error correction: CIRC (Cross Interleave Reed-
Solomon code)
Quantization: 16-bit linear
Frequency response: 4 - 20,000 Hz (+0/-1 dB)
D/A converter: 1 bit
Signal/noise ratio: 100 dB (1 kHz)
Dynamic range: 90 dB (1 kHz)
Wow and flutter: Unmeasurable (less than ±0.001%
W. peek)
Timer/clock
Type: Digital clock with date function
Timer: ON/OFF, once a day
IMPORTANT SERVICE NOTES (FOR UK ONLY)
Beforereturningtheunittothecustomer after completion of a
repairoradjustment it isnecessaryfor thefollowingwithstand
voltage test to be applied to ensure the unit is safe for the
customer to use.
Setting of Withstanding Voltage Tester and set.
Set name set value
Withstanding Voltage Tester
Test voltage 4,240 VPEAK
3,000 VRMS
Set time 6 secs
Set current(Cutoff current) 4 mA
Unit
Judgment
OK: The “GOOD” lamp lights.
NG: The “NG” lamp lights and the buzzor sounds.
SHORT-CIRCUIT
AC POWER
SUPPLY CORD
CONNECT THE PROBE
TO GND TERMINAL
OF PHONO TERMINAL
PROBE
AC
UNIT
WITHSTANDING
VOLTAGE TESTER
+
-
OUT
OF CHASSIS
SCREW
Socket
name Socket shape Input
impedance Reference input level Minimum input level
Socket
name Output
level Load impedance
PHONES 6.3 mm (1/4") stereo 15 mV 32 ohms
(Headphones) socket
LINE OUT Pin socket 2 Vrms 50 kohms
OPTICAL Square optical connector
OUT (Optical)
Socket shape
Specifications for this model are subject to change without
prior notice.

MD-R3H
– 4 –
NAME OF PARTS
Front panel
1. MD TOC Indicator: TOC
2. Total Time Indicator
3. Disc Name Indicator
4. Track Name Indicator
5. Data Indicator
6. Level Meter/Character Information Display
7. Recording Level indicator
8. Recording Level Too High Indicator
9. Music Calender
10. More Tracks Indcator
11. Pause Indicator:
12. Record Indicator:
13. Play Indicator:
14. Monaural Long-Play Mode Indicator
15. Programme Indicator
16. Repeat Indicator:
17. Remaining Time Indicator
18. Random Play Indicator
19. Timer Playback/Timer Recording Indicator
20. Clock Indicator
21. CD Trays
22. CD Direct Play Buttons and Indicators
23. CD Open/Close Buttons:
24. CD Track Select Button
25. Cue/Review Button:
26. Display/Character Button
27. Remote Sensor
28. MD Loading Slot
29. Record Level Control
30. Microphone Socket
31. On/Stand-by Button
32. CD Stop Button:
33. CD Play/Pause Button:
34. Headphone Socket
35. Headphone Level Control
36. CD Edit Button
37. Program Button
38. Jog Dial (Next/Previous)
39. Enter Button
40. Delete/Clear/Timer Button
41. Name/TOC Edit Button
42. Input Select Button
43. Record Button:
44. MD Stop Button:
45. MD Play/Pause Button:
46. MD Eject Button:
TOC 12 4 0dB OVERDISC TRACK DATE
MONO LP PRGM RANDOM TIMER REC CLOCK
AM
PM
REMAIN
TOTAL
1234567
8 9 10 11 12 13
15 16 17 18 19 20 14
12345 6 7
8
9
10
11
14 1516 1817 19 20
29
30
12
13
31 32 33 34 35 43424140 44 45 4638 393736
26 27 282221 23 2524
Rear panel
1. AC Power Lead
2. Coaxial Input Socket (Digiral)
3. Optical Input/Output Sockets
(Digital)
4. Line Input/Output Sockets
(Analogue)
5. Reset Button
12345

MD-R3H
– 5 –
OPERATION MANUAL
Names of controls
1. Direct Key Buttons
2. Play Mode Button
3. Music Scan Button
4. Input Select Button
5. Display Button
6. Auto Mark Button
7. Time Button
8. MD Track Up/Cue Button:
9. MD Track Down/Review Button:
10. CD Track Down/Review Button:
11. CD Track Up/Cue Button:
12. Program Button
13. Clear Button
14. Synchro Record Button:
15. Record Cancel Button
16. Record Button:
17. Record Mode Button
18. MD Stop Button:
19. MD Play/Pause Button:
20. CD Play/Pause Button:
21. CD Stop Button:
22. CD Play buttons: 1 - 3
23. On/Stand-by Button
SETTING THE CLOCK
When recording, the date and time are recorded on the Minidisc.
Setting the date
1
Press the ON/STAND-BY button to turn the power on and press the TIMER button.
2
Within 10 seconds, turn the jog dial until “TIME ADJUST” appears.
3
Within 10 seconds, press the ENTER button.
The unit will enter the date setting mode.
4
Set the “year” using the jog dial.
When you turn the jog dial and let go, the year will change up or down by one. The year 2000 or later is set as follows: [00] indicates the year 2000. [01] indicates the year 2001. The range of dates that can be entered is from January 1, 1997 to December 31, 2099.
5
Press the ENTER button to set the “year”.
6
Set the “month” repeating steps 4 and 5.
7
Set the “day” repeating steps 4 and 5.
The unit will enter the time setting mode.
ON/
STAND-BY
ENTER
DELETE/CLEAR
TIMER
DATE
CLOCK
CLOCK
CLOCK
DATE
7 6 54 3 2 1
Date setting mode
Each time the button is pressed, the display will change.
Time setting mode
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
23 22

MD-R3H
– 6 –
(Continued)
Setting the time
After step 7, described in the “Setting the date” section 8Set the “hour” using the jog dial.
When you turn the jog dial and let go, the hour will change up or down by one. When you turn and hold it, the hour will change continuously. The clock uses the 24-hour system.
9Press the ENTER button to set the “hour”.
10Adjust the “minute” using the jog dial. 11Press the ENTER button to set the “minute”.
When the ENTER button is pressed, the clock will show the correct time.
Checking the date and time
After pressing the TIMER button, turn the jog dial until the date and time are displayed. Resetting the date and time
See “Setting the clock”.
Once you have set the date and time, “TIME ADJUST” will not be displayed in step 2. Turn the jog dial to make the date and time appear. If you don't need to change the settings, just press the ENTER button without turning the jog dial again.
ENTER
DELETE/CLEAR
TIMER
DATE
CLOCK
DATE
CLOCK
DATE
CLOCK
DATE
CLOCK
8 9
10 11
SYMPTOM POSSIBLE CAUSE REMEDY
TROUBLESHOOTING
If a problem occurs
If this unit functions abnormally during operation, first check the following items. If the unit continues to function abnormally, or if an abnormality appears other than listed below, turn off the player's power and disconnect the AC power plug, then consult your SHARP dealer or service personnel.
General
SYMPTOM POSSIBLE CAUSE REMEDY
The clock is wrong. Did a power failure occur? Try setting it again.
When a button is pressed, the unit does not respond. Turn the power off and on again, and
then retry the operation.
Radios make unusual noise or the picture on the TV screen is distorted. When a radio or TV which uses an in-
door aerial is placed near the unit, the picture on the TV screen may be dis- torted or the radio may not function prop- erly.
It is recommended that you use an out- door aerial.
MD recording and playback
A recording cannot be made. Is the MiniDisc protected against acci-
dental erasure? Slide the accidental erase prevention tab
back to its original position.
Did you try to make recording on a play- back-only MiniDisc? Replace it with a recordable disc.
Can you see the “TOC FULL” message in the display? Put in another recordable disc with re-
cording space on it.
Even though a disc has been loaded, “NO DISC” or “ERROR” is displayed.
Is the disc scratched?
Is the unit located near excessive vibra- tion?
Replace the disc. Place the unit on a firm, level surface free from vibration.
Playback stops in the middle of a track, or playback is not performed properly. Is the unit located near excessive vibra-
tions? Place the unit on a firm, level surface free
from vibration.
Playback sounds are skipped. Has condensation formed inside the unit? Remove the disc and leave the power
turned on. The unit should function prop- erly in about 1 hour.
Remote control
SYMPTOM POSSIBLE CAUSE REMEDY
The remote control does not function or does not operate properly. The batteries (polarity) are not inserted
properly. Insert properly.
The batteries inside the remote control are dead. Replace the batteries.
The remote control is operated from an incorrect distance or angle. Operate it within a range of 0.2 m (8") to
6 m (20') and within an angle of 15
o
to
either side of centre.
No disc has been loaded. Load a disc.
The power cannot be turned on from the remote control. Is the AC power lead plugged in? Connect the AC power lead.
CD playback
SYMPTOM POSSIBLE CAUSE REMEDY
Even though a disc has been loaded, "NO DISC" or "ERROR" is displayed. Playback stops in the middle of a track, or playback is not performed properly. Playback sounds are skipped.
The disc is loaded up-side down. Load the disc with the correct side up.
The disc is very dirty. Clean the disc.
The disc does not satisfy the standards. Load the correct disc.
Is the unit located near excessive vibra- tions? Place the unit on a firm, level surface free
from vibration.
Has condensation formed inside the unit? Remove the disc and leave the power
turned on. The unit should function properly in about 1 hour.
REMOTE CONTROL
Proper use of the remote control
Aim the remote control at the remote control sensor within 30
o
with no obstacles, and operate as shown.
Notes concerning use:
Replace the batteries if the control distance decreases or operation becomes erratic. Periodically clean the transmitter window on the remote control and the sensor on the main unit with a soft cloth. Exposing the sensor on the main unit to strong light can interfere with operation. Change the lighting or the direction of the unit. Keep the remote control away from moisture, excessive heat, shock, and vibrations. The remote control's usable range is between 0.2 m (8") and 6 m (20') away from the sensor.
1515
0.2 - 6 m (8" - 20')

MD-R3H
– 7 –
(Continued)
When an error message is displayed, proceed as follows:
Error messages Meaning Remedy
BLANK MD Nothing is recorded.
(Neither music nor a disc name have been  recorded on this MD.)
Replace the disc with a recorded disc.
Can't COPY You tried to record from a disc which you are
not allowed to copy. Replace it with another disc which you can
copy from (regular CD).
Can't EDIT A track cannot be edited. Change the stop position of the track and then
try editing it.
Can't REC Recording cannot be performed correctly due to
vibration. Move the unit away from the source of vibration.
DEFECT Since this disc has scratches on it, the
recording operation was skipped. Replace the disc with another recordable disc.
CH ERROR The CD changer is not working properly. Press the ON/STAND-BY button to enter the
stand-by mode, and disconnect the AC power lead from the AC socket. Then connect the AC power lead, and turn on the power again.
Din UNLOCK Incorrect digital signals are input. Connect correct digital signals.
Use the analogue input socket.
DISC ERR The disc is damaged or there is no TOC on the
disc. Reload the disc or replace it.
DISC FULL The disc is out of recording space. Replace the disc with another recordable disc. EDIT OVER There is no space left to record the remainder
of the CD. Replace the MD with another recordable disc.
FOCUS ERROR The proper focus cannot be obtained. Reload the MiniDisc. MD ERROR The unit has determined that it is out of order
by performing a self-diagnosis. Ask the store where you purchased this unit,
about repairs.
MECHA ERR* There is a mechanical problem and the disc is
not working properly. Press the ON/STAND-BY button to enter the
stand-by mode, and press the button.
NAME FULL The number of characters for the disc name or
track name exceeds 100. Shorten the disc or track name.
*NO DISC* A disc has not been loaded.
The disc data cannot be read. Load a disc.
Reload the disc.
NOT AUDIO The data recorded on this disc is not audio data. Select another track.
Replace the disc.
PLAYBACK MD You tried to record on a playback-only disc.
The data of disc names and track names are not able to move from playback-only discs.
Replace it with a recordable MiniDisc. Edit only the sound.
PROTECTED The MiniDisc is write protected. Move the write protection tab back to its original
position.
TEMP OVER The temperature is too high. Press the ON/STAND-BY button to enter the
stand-by mode, and wait for a while.
TOC ERR* The disc has a large amount of damage.
TOC information cannot be read. The MD does not meet the specifications for MDs.
Replace the disc with another disc.
TOC FULL* There is no space left for recording character
information (track names, disc names, etc.) Replace it with another recordable disc.
TOC W ERROR The unit has determined that it is abnormal by
performing a self-diagnosis. Ask the store where you purchased this unit,
about repairs.
U TOC ERR* The TOC information on this disc does not
meet the MD specifications or it cannot be read. Replace it with another disc.
Erase all the data, and try recording.
U TOC W ERR The TOC information could not be created
properly due to a mechanical shock or to scratches on the disc.
Press the ON/STAND-BY button to enter the stand-by mode, and try to write the TOC again. (Remove any source of shock or vibration whilst writing.)
? DISC The data contains an error. Replace the disc with another disc. 0 0:00 Music is not being recorded. Replace the disc with a recorded disc.
*: Number or symbol
(Continued)
Moisture condensation
In the following cases, condensation may form inside the unit.
Shortly after turning on a heater. When the unit is placed in a room where there is exces- sive steam or moisture. When the unit is moved from a cool place to a warm place.
When the unit has condensation inside, the disc signals cannot be read, and the product may not function prop- erly.
●If this happens, remove the disc, and open the disc tray.
The condensation should evaporate in approximately 1 hour. The unit will then function properly.
If a problem occurs
If this product is subjected to strong external interfer- ence (mechanical shock, excessive static electricity, ab- normal supply voltage due to lightning, etc.) or if it is operated incorrectly, it may malfunction or the display may not function correctly. If such a problem occurs, do the following:
Unplug the AC power lead from the AC socket. Wait about 20 - 30 seconds and then plug the AC power lead back into the AC socket. Press the RESET button on the back of the unit.
1 2 3
When the RESET button is pressed, all of the settings in memory will be erased. If strange sounds, smells or smoke come out of the unit or if a foreign object falls into the unit, turn off the power, unplug the AC power lead from the AC socket, im- mediately. Contact the shop where you purchased the unit.
If a power failure occurs during recording
If the AC power plug is disconnected from the AC socket or a power failure occurs during recording (before the TOC information has been recorded on the disc), the audio portion being recorded at that time will be erased. When a recording is being added to a MiniDisc which already has a recording on it, if the TOC is not updated before the power failure, the added recording will be erased.
If a power failure occurs or the AC power lead is dis- connected for about 10 minutes, when power is restored, the TOC will be written on the disc.
RESET
Pen, pencil, etc.
TRANSPORTING THE UNIT
When transporting the unit, proceed as follows: 1
Press the ON/STAND-BY button to turn the power on.
2
Remove all discs CDs/MD from the unit.
3
Press the RESET button on the rear of the unit. When the RESET button is pressed, all of the settings in mem- ory will be erased.
4
Make sure "TIME ADJUST" appears in the display, then press the ON/STAND-BY button to turn the power on again.
5
Press the ON/STAND-BY button to enter the stand-by mode.
6
Make sure the message on the display has changed from "GOOD BYE!" to "TIME ADJUST", and then unplug the AC power lead from the AC socket.
1,4,5 2 2

MD-R3H
– 8 –
DISASSEMBLY
Caution on Disassembly
Follow the below-mentioned notes when disassembling
the unit and reassembling it, to keep it safe and ensure
excellent performance:
1. Take the minidisc out of the unit.
2. When disassembling the machine, be sure to withdraw
the power plug from the socket in advance.
3. When disassemble the parts, remove the nylon band or
wire holder as necessary.
To assemble afterrepair, be sure to arrange the wires as
they were.
If a screw of different length is fitted to the MD mecha-
nism (the screw of the part to be fitted to the MD
mechanism chassis), it may contact the optical pickup,
resulting in malfunction.
4.Whenrepairing,paydueattentiontoelectrostaticcharges
of IC.
1 Top Cabinet 1. Screw .....................(A1) x5 8-1
2 Rear Panel 1. Screw .....................(B1) x5 8-2
3 MD Unit 1. Screw .................... (C1) x4 8-2
2. Flat Cable ...............(C2) x1
3. Socket .................. (C3) x1
4 Front Panel 1. Screw .................... (D1) x6 8-3
2. Flat Cable ...............(D2) x1
3. Socket ................... (D3) x4
5 CD Changer Block 1. Screw ...................... (E1) x4 8-3
(with CD Servo/ 2. Socket ..................... (E2) x4
CD Changer PWB)
6 Main PWB 1. Screw ..................... (F1) x6 8-3
(with Transformer)
7 Mic PWB 1. Screw ................... (G1) x2 8-4
8 Headphones PWB 1. Screw ....................... (H1) x2 8-4
9 Jog Dial 1. Knob ....................... (J1) x1 8-4
2. Nut .......................... (J2) x1
10 Display PWB/ 1. Knob .......................(K1) x2 8-4
Switch PWB 2. Screw ...................(K2) x13
11 Switch PWB 1. Screw ..................... (L1) x4 8-4
12 CD Servo PWB 1. Screw ................... (M1) x3 9-1
(Note1) 2. Socket ................... (M2) x3
13 CD Changer PWB 1. Screw ....................... (N1) x2 9-1
14 Tray Switch PWB 1. Screw .....................(P1) x1 9-1
15 CD Mechanism 1.Screw ..................... (Q1) x2 9-2
2. Top Board ............. (Q2) x1
3. Disc Holder............ (Q3) x3
4. Disc Tray ............... (Q4) x3
5. Screw .................... (Q5) x1
6. Mechanism Holder
Guide ..................... (Q6) x1
7.
Mechanism Holder . (Q7) x1
8. Screw .................... (Q8) x4
16 MD Mechanism 1. Screw .................... (R1) x4 9-3
Unit
17 MD Main PWB 1. Screw .....................(S1) x4 9-4
2. Socket ....................(S2) x6
18 MD Mechanism 1. Screw ..................... (T1) x4 9-5
REMOVAL PROCEDURE
STEP FIGURE
Figure 8-1
Figure 8-2
Figure 8-3
Top Cabinet
(A1)x1
ø3x10mm
(A1)x1
ø3x10mm
(A1)x3
ø3x10mm
(C3)x1
(C2)x1
(B1)x5
ø3x10mm
(C1)x4
ø3x6mm
Rear Panel
MD Unit
Front Panel
(F1)x2
ø4x8mm
(F1)x2
ø3x10mm
Washer
(F1)x2
ø3x10mm
(E1)x1
ø3x10mm (E1)x2
ø3x10mm
(D1)x4
ø3x8mm
(D1)x1
ø3x8mm
(E1)x1
ø3x10mm
Front Panel
(E2)x1
(E2)x1
(E2)x2
(D2)x1
(D3)x1
Main PWB
CD Changer
Block
(D1)x1
ø3x8mm
(D3)x3
(G1)x2
ø2.6x10mm
(K2)x11
ø2.6x10mm
(K2)x2
ø2.6x10mm
(H1)x2
ø2.6x10mm (L1)x4
ø2.6x10mm
Mic PWB
Front Panel
Display PWB
Switch PWB
Switch PWB
Headphones
PWB
(J1)x1
(K1)x1
(K1)x1
(J2)x1
Washer
Figure 8-4
Note 1. After removing the connector for the optical pickup
from the connector wrap the conducitive aluminum
foil around the front end of connector so as to protect
the optical pickup from electrostatic damage.

MD-R3H
– 9 –
Figure 9-3
Figure 9-1
Figure 9-2
Figure 9-4
Figure 9-5
CD
Servo PWB
CD Changer PWB
(Remove 4 soldering joints).
Tray
Switch
PWB
CD Changer
Block
(M1)x3
ø3x10mm
(N1)x2
ø2.6x10mm
(P1)x1
ø2x7mm
(M2)x3
(N2)x2
(Q1) x2
ø2 x7mm (Q5) x1
ø2.6 x12mm
(Q8) x4
ø2.6 x10mm
(Q3) x1
(Q2) x1
(Q6) x1
(Q7) x1
Pawl
Disc Tray 1
Disc Tray 2
Disc Tray 3
CD
Mechanism
Push .
Spring
Turn clockwise the
main cam to raise the
CD mechanism up to
the uppermost position.
(Q4) x3
Press in turns the arrow 
parts, starting with the 
uppermost one, to 
withdraw the disc trays
1
2
3
Normal state

Disc Tray 1
(After drawing out the disc trays 1, 2, and 3, turn 
over the mechanism unit, push two pawls, and
remove successively the three disc trays from the 
mechanism unit, starting with the disc tray 3. 
Thereby the CD mechanism shown in the right
figure can be removed.)
Push the pawl of disc tray 
with a proper screwdriver.
Disc Tray 2
Disc Tray 3

Pawl
Pawl
Back surface
Shield Case
(R1) x 2
ø3 x 6mm
(R1) x 2
ø3 x 6mm
MD Mechanism
Unit
MD Main PWB
(S2)x1
Pull
Pickup Flexible 
PWB (*1)
Frame
(S2) x 1
(S2) x 3
(S2) x 1
(S1) x 4
ø1.7 x 3mm
(*1) After disconnecting the optical 
 pickup flex PWB from the 
 connector wrap the front end of 
 flex PWB in conductive aluminium 
 foil so as to prevent electrostatic 
 damage of optical pickup.
(T1)x4
ø1.7x8.9mm
MD Mechanism

MD-R3H
– 10 –
• Jog knob replacement procedure
Jog Knob
Jog Decoration
Display PWB
Remove the pawl of jog decoration with fine piece
such as tweezers, press, and remove the jog knob.
Only push out on the jog knob itself.
Figure 10-1
Figure 10-2
Jog Knob
Push directly the jog knob with pliers etc.
Jog Decoration
FL Window
Front Panel
Display PWB
VOLUME
NUT

MD-R3H
– 11 –
CD MECHANISM SECTION
For the procedure to remove the CD mechanism from the
main unit, refer to Disassembling Procedure, Steps 1, 5, 11,
and 14.
How to Remove the optical pickup
(See Fig. 11-1.)
1. Remove the screws (A1)x 2 pcs., to remove shaft (A2)x 1
pc.
2.Removestopwasher(A3)x1pc.,toremovegear(A4)x1pc.
3. Remove the optical pickup.
Note:
After disconnecting the optical pickup connector wrap the
front end of connector in conductive aluminum foil so as to
prevent damage to the optical pickup by static electricity.
Figure 11-4
Figure 11-2
Figure 11-3
Figure 11-1
How to Remove the tray motor/main cam motor
(with CD changer PWB)
(See Fig. 11-2.)
1.Removethefrontcabinet,andremovetheCDchangerfrom
the rear cabinet. After that, disassemble as shown in the
figure.
2. Remove the belts (B1)x 2 pcs., from the motor side.
3. Remove the screws (B2)x 4 pc.
4. Remove the tray motor and main cam motor.
How to remove the CD disc
(When CD exists in the tray)
(See Fig. 11-4.)
1. Remove the front cabinet.
2. Remove the CD changer from the rear cabinet.
3. Remove the CD disc from the tray as shown in the figure.
How to remove the CD disc
(When CD is in playback state)
(See Fig. 11-3.)
1. Remove the front cabinet.
2. Remove the CD changer from the rear cabinet.
3. Remove the CD disc as shown in the figure.
REMOVING AND REINSTALLING THE MAIN PARTS
(A1) x2
ø2.6 x5mm
CD
Mechanism
Stop Washer
(A3) x1
Gear
(A4) x1

Shaft
(A2) x1

Pickup
Tray Motor
Main Cam
Motor
Belt
(B1) x1
Belt
(B1) x1

CD Changer PWB
(B2) x2
ø2.6 x4mm
(B2) x2
ø2.6 x4mm
CD Disc
Disc Holder

Turn the main cam clockwise, 
and raise the CD mechanism 
and disc holder up to 
uppermost position.

CD CHanger
Block
(When CD is in playback state.)
Disc Tray 1 

Disc Holder
CD Disc
Disc Tray 2

Disc Tray 3

CD Mechanism CD Changer
Block
Press in turns the arrow 
parts, starting with the 
uppermost one, to 
withdraw the disc trays
1
2
3
Turn the main cam clockwise, 
and raise the CD mechanism 
and disc holder up to 
uppermost position.

(When CD exists in the tray.)

MD-R3H
– 12 –
MD MECHANISM SECTION
Perform steps 1, 3, 15 to 17 of the disassembly method to
remove the MD mechanism.
How to remove the magnetic head
(See Fig. 12-1)
1. Remove the screws (A1) x 1 pc.
Caution:
Takeutmostcaresothatthemagneticheadisnotdamaged
when it is mounted.
How to remove the cartridge holder
(See Fig. 12-2)
1. Open the rpller arm lever in the arrow direction, and lower
the clamper lever to the rear side.
2. Apply +5V to the red line side of blue connector of loading
motor,pushtherackgearinthearrowdirection to movethe
cam plate lever until tick is heard.
3. Remove the screw (B1) x1 pc., and the spring (B2) x1 pc.,
fitted to the holder arm, and shift the cartridge holder to the
left side to remove it.
How to remove the mechanism switch PWB
(See Fig. 12-3)
1. Remove the screws (C1) x 2 pcs., and remove the mecha-
nism switch PWB.
Figure 12-1
Figure 12-2
Figure 12-3
MD Mechanism
(A1)x1
ø1.7x5mm
Magnetic Head
Slider Lever
Cartridge Holder
Clampa Lever
Lack Gear
Roller Arm Lever
Loading Motor
Cam Plate Lever
(B1) x1
Ø1.7x5mm
(B2) x1
(C1)x1
Ø1.7x3mm
(C1)x1
Ø1.7x9.5mm
MD Mechanism
Switch PWB

MD-R3H
– 13 –
How to remove the sled motor/loading motor
(See Fig. 13-1)
1. Remove the screws (D1) x 1 pcs., and remove the sled
motor/loading motor.
Caution:
Be careful so that the gear is not damaged.
(The damaged gear emits noise during searching.)
Figure 13-1
Figure 13-2
Figure 13-3
How to remove the spindle motor
(See Fig. 13-2)
1. Remove the screws (E1) x 3 pcs., and remove the spidle
motor.
Caution:
Be careful so that the turntable is not damaged.
How to remove the optical pickup
(See Fig. 13-3)
1. Remove the screws (F1) x 3 pcs.
Caution:
Be careful so that the gear is not damaged.
(The damaged gear emits noise during searching.)
Sled Motor
Loading
Motor
(D1)x2
Ø1.7x2mm (D1)x2
Ø1.7x2mm
Spindle Motor
Turntable
(E1)x3
Ø1.7x2.5mm
Optical Pickup
(F1)x3
Ø1.7x9.5mm

MD-R3H
– 14 –
ADJUSTMENT
CD SECTION
Extension cable
When making adjustment or checking operation, use the following extension cable as necessary.
Extension cable Parts No.
Type
A For CD PWB (TP751, 6-pin) QCNWK0043AFZZ
Figure 14
CD circuit adjustment
1. Preparation for adjustment
Setting the CD TEST mode
CD test mode 0 Holding down the CD direct play 1 Without IL
button and the ENTER butto plug in
AC code (or press the RESET
switch).
CD test mode 1 IPress the [CD-PLAY] button. Laser ON
CD test mode 1
CD test mode 2 Press the [CD-PLAY] button. Focus servo ON
(2nd time)
CD test mode 2
CD test mode 3 Press the [CD-PLAY] button. When the spin servo is on, the disc
(3rd time) motor rotates.
CD test mode 3
CD test mode 4 Press the [CD-PLAY] button. Tracking servo ON
(4th time)
CD test mode 4
CD test mode 5 Press the [CD-PLAY] button. Track No. and time are indicated.
(5th time)
CD test mode 5
Test mode Setting procedure IndicationRemarks
CNS903
1
10
1
6
1
6
CNP700A
TP751 BI851/CNS552 CNP751
CNP752
Extension cable for
CD Servo PWB
QCNWK0043AFZZ
A
CD SERVO PWB

MD-R3H
– 15 –
Button operation in CD test mode
1. [STOP] : Specific operation is stopped, resulting in TEST mode waiting state. The pickup slide
is kept in stop state.
2. [ ] : The pickup slides toward the external periphery.
3. [ ] : The pickup slides toward the internal periphery.
When the switch (Pu_IN) is on, the slide is stopped.
4. [DISP] :WhenthisswitchispressedinTEST4orlater,itisaccepted,andthemodeischanged
directly to TEST 3.
(Tracking servo OFF)
6.Hold down [CD-PLAY] for 500 msec : This button is accepted in the TEST waiting state, and mode is changed directly to
TEST 5.
Caution
1.Even when the sub-code cannot be read during playing, the [STOP] button must be accepted to perform the STOP operation.
2.When the [CD-EJECT] button is pressed, the tray must be opened after normal STOP operation.
2. Adjusting the servo unit
Set all the half-fixed resistors in the mechanical center position.
Set the CD test mode 0, and shift the pickup to the center.
Set the CD test mode 1. (Make sure that laser lights.)
After loading the disc set the test mode 2.
(Make sure that the focus servo is on. The disc does not rotate but mechanical tone is heard.)
Set the CD test mode 3. (The spin servo is turned on, and the disc turns.)
Tracking error balance adjustment VR751 *1 (Figure 16-1) Pin 6 (1/2Vcc) and pin 4 (TG1) of TP751
Set the CD test mode 4. (Tracking servo ON)
Tracking gain adjustment VR752 Get the same waveform on Pin 4 (TG1), pin 2 (TG2) and pin 6 (1/2Vcc)
CH1 and CH2. *2 of TP751 (Relay circuit is used)
Set the test mode 5, and make sure that track No. and time are indicated.
Apply a black tape to the disc, and play back this part. (Figure 16-2). (It is allowed to apply any mode in addition to test mode.)
Focus offset adjustment VR753 *3 Pin 6 (1/2Vcc) and pin 1 (FG1) of TP751 *4
Tracking offset adjustment VR754 *5 Pin 6 (1/2Vcc) and pin 4 (TG1) of TP751 *6
Adjustment classification Connection of measuring instrument
Setting/adjusting procedure
*1: Taking 1/2Vcc as a reference DC level, make an adjustment to get vertical symmetry of waveform (Figure 16-1) with respect
to the reference DC level.
(Amplitude 0.5 to 1.5 Vp-p) (As the optical pickup has been adjusted before shipping, adjustment is required only when
adjustment disturbance is found.)
*2: Input oscillation frequency 1.5 kHz, 300 mVrms
*3: Makeanadjustmentsothattheerrorwaveformisminimized(Figure16-3),noise(trackjumpsound)ceasesduringaudiooutput
monitoring and clear playback is ensured.
*4: The proper measurement range of oscilloscope is 50 mV, 0.5 ms.
Connect the trigger to the pin 39 (HFD) of IC750, apply coupling on DC (-) slope, and observe waveform in the normal trigger
mode.
*5: Make an adjustment so that the error waveform becomes uniform and is minimized (Figure 16-3), noise (track jump sound)
ceases during audio output monitoring, clear playback is ensured and sound skip and pause state do not occur.
*6: The proper measurement range of oscilloscope is 0.1V, 0.5 ms. The trigger is the same as stated in the note*4 above.
Reference:Iftheerrorwaveformcontainssignificantnoiseandisnotclear,observethewaveform,usingthelow-passfilter(Figure
16-4).
Adjusting object

MD-R3H
– 16 –
Figure 16-2 FOCUS OFFSET/TRACKING OFFSET
Figure 16-3 FOCUS OFFSET/TRACKING OFFSET
Figure 16-1 TRACKING ERROR BALANCE
Figure 16-6 ADJUSTMENT POINTS
Figure 16-4 LOW-PASS FILTER
Figure 16-5 TRACKING GAIN RELAY CIRCUIT
Vertically
symmetrical
waveform
0.5~1.5Vp - p
Reference
CD level
1/2 VCC
Apply a black tape
(1.2 to 1.5 wide).
It is allowed use any disc in addition
to test disc.
Do not apply the black tape to the
initialization part (TOC).
Adjust to get uniform and minimized
error waveform.
27kΩ
FG1
TP751, pin 1
TG1
TP751, pin 4
Waveform
observation
point
820P
1/2 VCC
TP751,
pin 4
(TG1)
TP751,
pin 6
(1/2Vcc)
TP751,
pin 2
(TG2)
0.0082
0.0082
100K
100K
100K
100K
2.2K
2.2K
820P
820P
CH - 1
CH - 2
VV
VV
Signal
transmitter
1 FG1
2 FG2
3HF
4 TG1
5 FG2
6 1/2Vcc
CNS903
VR752
VR751
VR753
VR754
16
TP751
TP751 CNP700A
For your safety do not attempt to adjust
the half-fixed resistor for laser power
adjustment.
OPTICAL PICKUP PWB
TRACKING
ERROR BALANCE
TRACKING
OFFSET TRACKING
GAIN
FOCUS
OFFSET
CD SERVO PWB
Do not plug in or unplug the optical pickup
connection cable while power is on.
Otherwise damage may occur.

MD-R3H
– 17 –
TEST MODE
1) Mode there are 5 kinds TEST MODE as below.
MODE PUSH KEY
A) MD TEST MODE ENTER PLAY
B) AUDIO TEST MODE CUE REVIEW
C) KEY TEST MODE CUE ENTER
D) RECORDING TEST MODE ENTER REC
E) MD TEST2 MODE (DATA MONITOR MODE) ENTER STOP
2) How to start and quit TEST MODE.
AC Supply On or push RESET KEY after push two keys.
In all TEST MODE. Power Off (POWER KEY) is quit TEST MODE.
3) TEST MODE description.
A) MD TEST MODE (ENTER+PLAY)
Disp. Will be "AUT YOBI". In this mode push PLAY KEY in mean product alignment's auto adjust mode.
(Disp. Will be "AUTO AJST". In this mode push PLAY KEY in mean auto adjust mode by disc condition.
Then push PLAY KEY again. It start play and display will be "a__C__". The 4 digits after "a" are address.
After "C" are error rate.)
PUSH KEY NAME ACTION
ENTER Servo adjust mode or menu from adjust mode.
TIMER REC. and P.B. mode or to menu from REC.mode.
NAME Other menu select.
REC Reverse menu select.
PLAY Selected menu execution.
STOP Execute stop.
CUE Slide motor (PIC) move to out-side.
REVIEW Slide motor (PIC) move to in-side.
JOG. UP *1 Manual alignment +1, loading motor on (OUT).
JOG. DOWN *1 Manual alignment -1, loading motor on (IN).
POWER Test mode quit and power off.
EJECT Disc eject.
*1. Jog. Up/Jog. Down key effect for loading motor control when display panel "tsm____e__". (Push STOP KEY some times
to disp. "tsm____e__".)
NOTE. MD test are necessary mode only for MD Unit.
B) Audio test mode (CUE+REVIEW)
This mode is key examination mode for a set with in MD-unit.
Automatically set recording mode.
Digital opt. Digital coax and analog are effective.
Test mode start is REC KEY push after disc toc. Read.
REC KEY push
1) Record form analog function by 3 sec time.
2) Record form digital opt. Function by 3 sec time.
3) Record from digital coax. Function by 3 sec time.
4) Record stop.
Note. 1) If digital function is din unclock. Skip to follwing next function.
2) Digital synchronize level is -50 dB.
Analog synchronize level is -47 dB.
C) Key test mode (CUE+ENTER)
This mode is key examination mode for a set with out MD-unit.
This mode indicate destination as below dot display.

MD-R3H
– 18 –
KEY NAME ILLUMINATE
SEGMENT
TIMER 10 ROW DOT INPUT SELECT TOC
DISPLAY 11 ROW DOT EJECT 7 ROW DOT
REVIEW ALL PLAY 4 ROW DOT
CUE PM STOP 5 ROW DOT
ENTER 8 ROW DOT REC 6 ROW DOT
JOG. UP 17 (M.C.) NAME 9 ROW DOT
JOG. DOWN 18 (M.C.) TIME AM
PROGRAM PRGM
KEY TEST
KEY NAME ILLUMINATE
SEGMENT
D) Recording test mode (ENTER+REC)
This mode is auto recording repeat mode.
After disc full. Erase all and rec start again.
1. Preparation for adjustment
Test disc
MD SECTION
Type Test disc Part No.
1 High reflection disc TGYS1 (SONY) RRCDT0101AFZZ
2 Low reflection disc Recording minidisc UDSKM0001AFZZ
3 Head Adjusting transparent RRCDT0103AFZZ
Extension Cable (See Fig. 28-4)
Type Part No.
1 Extension PWB for servicing RUNTK0457AFZZ
2 Extension Connector (2 Pin) QCNWK0059AFZZ
3 Extension Connector (6 Pin) QCNWK0107AFZZ
4 Extension Cable (5 Pin) QCNWK0109AFZZ
3 Extension Cable (28 Pin) QCNWK0108AFZZ
2. Test mode
Test mode setting method
1. Holding down the ENTER button and MD (PLAY/PAUSE) button, press the RESET button.
(State A is changed to state B .)
2. Insert the playback disc 1 (high reflection disc) or recording disc 2 (low reflection disc). (State C is set.)
Thus, the test mode state is set.
A tsm e : TEST MODE represents version of MD microcomputer.
TEST STOP state (When the MD (STOP) button is ressed in the C state, the indication A
is restored. To restore C again, press the ENTER button.)
B EJECT
TEST
C AUT YOBI
TEST
Entering the specific mode
Whenever the CD (PLAY/PAUSE) button is pressed, the mode is changed.
AUTO pre-adjustment AUTO adjustment RESULT SUB RESULT
EEPROM setting MANUAL adjustment MANUAL pre-adjustment
• Canceling the test mode
• When the RESET button is pressed, the test mode is canceled, and the POWER OFF state is set.
•IfyoupressthePOWERbutton,thetestmodewillbecancelledafterwritingintoEEPROMandthemodewithoutautoadjustment
will be actirated.

– 19 –
MD-R3H
• Test Mode
1. AUTO pre-adjustment mode • Automatic pre-adjustment is performed. (After adjustment the grating adjustment mode is set.)
• The adjustment value is output with the aid of system controller interface.
2. AUTO adjustment mode • Automatic adjustment is performed.
• The adjustment value is output with the aid of system controller interface.
• Continuous playback is performed. (Error rate indication, jump test)
3. RESULT sub-mode • The measurement value, set value and calculated value are indicated.
• The set value is changed manually (in servo OFF state).
4. RESULT mode (final adjustment) • The set value (after calculation) is indicated.
• The set value is changed manually (in servo OFF state).
5. MANUAL pre-adjustment mode • RF side manual adjustment is performed.
• Focus and tracking signal ATT manual adjustment is performed.
• Focus and tracking signal offset setting is performed.
6. MANUAL adjustment mode • Focus and tracking signal ATT manual adjustment is performed.
7. EEPROM setting mode • Various coefficients of digital servo are changed manually.
• Each servo is set to ON individually.
• Temperature detection terminal voltage is measured, and the reference value is determined.
8. TEST-PLAY mode • Continuous playback from the specified address is performed.
• C1 error rate measurement, ADIP error rate measurement.
9. TEST-REC mode • Continuous recording from the specified address is performed.
• Change of record laser output (servo gain is also changed according to laser output)
10. INNER mode • The position where the INNER switch is turned on is measured.
11. EJECT mode • TEMP setting (of EEPROM setting)
• CONTROL setting (of EEPROM setting)
• Setting of laser power (record/playback power)
1. AUTO pre-adjustment mode (Low reflection disc only)
Step No. Setting Method Remarks Display
Step 1 Testmode STOP state [ t s m e ]
Step 2 Press once the ENTER button. AUTO pre-adjustment menu [ A U T O ]
Step 3 Press once the MD PLAY button. The slide moves to the innermost periphery, and automatic [ : _ _ _ _ _ _ ]
pre-adjustment is started.
• During automatic adjustment changes as follows.
HAo→RFg→SAg→SBg→PTG→PCH→GTG→GCH→RCG→
SEG→RFG→SAG→HAO→HEO→TCO→LAO
End of adjustment If adjustment is OK, Step 4.
If adjustment is NG, Step 5.
Step 4 Grating adjustment, [ _ C O M P L E T E _ ]
adjustment value output
Press once the MD STOP button. STEP 2
Step 5 Adjustment value output [ C a n ' t _ A D J . ]
Press once the MD STOP button. STEP 2 AUTO pre-adjustment menu
• : Adjustment name

MD-R3H
– 20 –
Step 1 Testmode STOP state [ t s m e ]
Step 2 Press the ENTER button three times. RESULT sub-menu [ _ R S T _ Y O B I _ ]
Step 3 Press once the MD PLAY button. Indication of set value [ R F G : _ _ _ _ _ ]
Step 4 Press once the ENTER button. Indication of set value [ R C G : _ _ _ _ _ ]
Step 5 Press once the ENTER button. Indication of set value [ R T G : _ _ _ _ _ ]
Step 6 Press once the ENTER button. Indication of set value [ G T G : _ _ _ _ _ ]
Step 7 Press once the ENTER button. Indication of set value [ P C H : _ _ _ _ ]
Step 8 Press once the ENTER button. Indication of set value [ G C H : _ _ _ _ ]
Step 9 Press once the ENTER button. Indication of set value [ S A G : _ _ _ ]
Step 10 Press once the ENTER button. Indication of set value [ S B G : _ _ _ ]
Step 11 Press once the ENTER button. Indication of set value [ S E G : _ _ _ ]
Step 12 Press once the ENTER button. Indication of set value [ S F G : _ _ _ ]
Step 13 Press once the ENTER button. Indication of measurement value [ H A O : _ _ _]
Step 14 Press once the ENTER button. Indication of measurement value [ H B O : _ _ _]
Step 15 Press once the ENTER button. Indication of measurement value [ H E O : _ _ _]
Step 16 Press once the ENTER button. Indication of measurement value [ H F O : _ _ _]
Step 17 Press once the ENTER button. Indication of measurement value [ L A O : _ _ _]
Step 18 Press once the ENTER button. Indication of measurement value [ L B O : _ _ _]
Step 19 Press once the ENTER button. Indication of measurement value [ L E O : _ _ _]
Step 20 Press once the ENTER button. Indication of measurement value [ L F O : _ _ _]
Step 21 Press once the ENTER button. Indication of measurement value [ T C O : _ _ _ _]
Step 22 Press once the ENTER button. Indication of adjustment error sequence No. [ Y O B : _ _ _ _]
Step 23 Press once the ENTER button. Indication of adjustment status [ D I F : _ _ _ _]
Step 24 Press once the ENTER button. Indication of pre-adjustment not completed (00)/completed (4B) [ A D J : _ _ _ _]
Step 25 Press once the MD STOP button. RESULT sub-menu state [ _ R S T _ Y O B I _ ]
2. AUTO adjustment mode
Step No. Setting Method Remarks Display
Step 1 Testmode STOP state [ t s m e ]
Step 2 Press the ENTER button two times. AUTO adjustment menu [ A U T O _ A J S T _ ]
Step 3 Press once the MD PLAY button. The slide moves to the innermost periphery, and automatic [ : _ _ _ _ _ _ ]
adjustment is started.
• In case of high reflection disc changes as follows.
PEG→HAG
•In case of low reflection disc changes as follows.
PEG→LAG→GCG→GEG→LAG
End of adjustment If adjustment is OK, Step 4.
If adjustment is NG, Step 7.
Step 4 Adjustment value output [ _ C O M P L E T E _ ]
Press the MD PLAY button. STEP 5
Press the MD STOP button. STEP 2
Step 5 Continuous playback (pit section) [ s c ]
Continuous playback (groove section) [ a c ]
Step 6 Press the DISPLAY button. Continuous playback (groove section) [ a a ]
Press the MD STOP button. STEP 2 AUTO adjustment menu
Step 7 Adjustment value output [ C a n ' t _ A D J . ]
Press the MD STOP button. STEP 2 AUTO adjustment menu
• : Adjustment name, : Measurement value, : Address
3. RESULT sub-mode
Step No. Setting Method Remarks Display
• : Measurement value, : Adjustment value, : Other various informations
• ressing the REC button causes reversing.
• When the jog key is turned upward while the setting is displayed, the setting increases, and a new setting is stored in RAM.
• When the jog key is turned downward while the setting is displayed, the setting increases, and a new setting is stored in RAM.