Operation Manual
Page 8
... al use10, alsrelsel pesoos e - alb onle MS Wm MO stool ray °MOM On bed L E.7 2 ai good 440-w-1.o1-i0"nfo Pane 4" 3 Sao- oi Ow MD 00:00:01, eayMwGlaij•exe CHM= • SSW sou am WOO M sildisigeabo bailey moo Ms shske Oseimyst Me same sme do nos memo wind...
... al use10, alsrelsel pesoos e - alb onle MS Wm MO stool ray °MOM On bed L E.7 2 ai good 440-w-1.o1-i0"nfo Pane 4" 3 Sao- oi Ow MD 00:00:01, eayMwGlaij•exe CHM= • SSW sou am WOO M sildisigeabo bailey moo Ms shske Oseimyst Me same sme do nos memo wind...
Operation Manual
Page 9
... Analogue cable included with the unit • Main eguiprnert. CD player, MD player. There are possible: 'Digital recording and "Analogue recording'. • Type of recording Two types of recording are different cables end ccnnecrions for each type of recording, depending on the sockets Cr the equipment being connected to lI e unit... that lee an optical output socket us ng the optical digtai Cable included with this unit IPIayeeck note 0 (2) Digital recording Connect Me unit no equipment that has a line output socket, using the analogue cable included with this unit Using en...
... Analogue cable included with the unit • Main eguiprnert. CD player, MD player. There are possible: 'Digital recording and "Analogue recording'. • Type of recording Two types of recording are different cables end ccnnecrions for each type of recording, depending on the sockets Cr the equipment being connected to lI e unit... that lee an optical output socket us ng the optical digtai Cable included with this unit IPIayeeck note 0 (2) Digital recording Connect Me unit no equipment that has a line output socket, using the analogue cable included with this unit Using en...
Operation Manual
Page 17
... Al of the tracks that follow the newly recorded track will be erased. 1 During playback,...after that has been already recordeo and make a new recording, use the move function to begin remecerding. 2 Press... he setting of the auto marker function • To start recording from the middle of an existing track You car, erase a...recording is passed. ek'e k. ■ Recording tracks as angle track, disable the acrdwarmer funWiOn 1 Press the EDITIMARK outon wh ist the recording...wally regardless of music as a single track You Can record several pews of 'he erased, following the point where...
... Al of the tracks that follow the newly recorded track will be erased. 1 During playback,...after that has been already recordeo and make a new recording, use the move function to begin remecerding. 2 Press... he setting of the auto marker function • To start recording from the middle of an existing track You car, erase a...recording is passed. ek'e k. ■ Recording tracks as angle track, disable the acrdwarmer funWiOn 1 Press the EDITIMARK outon wh ist the recording...wally regardless of music as a single track You Can record several pews of 'he erased, following the point where...
Operation Manual
Page 21
... is displayed, the MiniDisc should nor be emoved Ten the pow off lint, and then remove tie MiniD so.er • The edited contents can be erased. Do not remove the rechargeab e bat- mation already eats. The entire MD is now being changed according to recording or editing being performed.... • The change., TOO Information will not be turned at aft, the TOG bus been recorded on the thwarter several editing steps have been performed Caution: •...
... is displayed, the MiniDisc should nor be emoved Ten the pow off lint, and then remove tie MiniD so.er • The edited contents can be erased. Do not remove the rechargeab e bat- mation already eats. The entire MD is now being changed according to recording or editing being performed.... • The change., TOO Information will not be turned at aft, the TOG bus been recorded on the thwarter several editing steps have been performed Caution: •...
Operation Manual
Page 28
... • Whet the adding function can do you can create original discs using the MD °citing function, on can be translerred onto a recordable MD. Name/stamp (Page 3t) • All of the cha-actors and data on a recorded MD 'master MD with tracks and Il character inforrnat on which you can change the order co...
... • Whet the adding function can do you can create original discs using the MD °citing function, on can be translerred onto a recordable MD. Name/stamp (Page 3t) • All of the cha-actors and data on a recorded MD 'master MD with tracks and Il character inforrnat on which you can change the order co...
Operation Manual
Page 33
• Check whether the total number of seeks on the newly recorded MiniDisc matches the total number of the master MiniThsc is complete, andve the newly recorded MiriDisc the masker MiriDisc into the MD-M5722W. • To cancel the operation, press the WOFF button. H they... Press the ENTERSYMC buttor. • The character information of tracks on the master MiniDisc. If the operation will be performed from slap 2 5 LReading t 6 (CHANGE MD E-32 E Note: • a 'he unit will finish record ng the character information and enter the stay mode Writing 0 C0MPLE- Disc using ...
• Check whether the total number of seeks on the newly recorded MiniDisc matches the total number of the master MiniThsc is complete, andve the newly recorded MiriDisc the masker MiriDisc into the MD-M5722W. • To cancel the operation, press the WOFF button. H they... Press the ENTERSYMC buttor. • The character information of tracks on the master MiniDisc. If the operation will be performed from slap 2 5 LReading t 6 (CHANGE MD E-32 E Note: • a 'he unit will finish record ng the character information and enter the stay mode Writing 0 C0MPLE- Disc using ...
Operation Manual
Page 38
Please note the loliowir• • Handling the MiniDisc Do not touch the disc directly! II tie label is a disc inside the anti • Shortly after furring on Doped', E-37 TROUBLESHOOTING • Moisture condensation m ... If the surface or the cartridge becomes dusty or dirty, clean it may not be read, and the unll may cause try disc to ar MD canricge, he unit has condensation inside the unit and it with the doors and windows closed. the IlliniDisc may jam inside . Do not leave discus...
Please note the loliowir• • Handling the MiniDisc Do not touch the disc directly! II tie label is a disc inside the anti • Shortly after furring on Doped', E-37 TROUBLESHOOTING • Moisture condensation m ... If the surface or the cartridge becomes dusty or dirty, clean it may not be read, and the unll may cause try disc to ar MD canricge, he unit has condensation inside the unit and it with the doors and windows closed. the IlliniDisc may jam inside . Do not leave discus...
Service Manual
Page 1
...only parts identical to those specified be used . CONTENTS Page SAFETY PRECAUTION FOR SERVICE MANUAL (MD-MS722W/MS721W ONLY 2 SPECIFICATIONS ...3 NAMES OF PARTS ...4 OPERATION MANUAL ...6 QUICK GUIDE (MD-MS722 ONLY) ...9 DISASSEMBLY ...11 INSTALLING THE TOP CABINET ...11 REMOVING AND REINSTALLING THE MAIN ...DIAGRAM ...39 WAVEFORMS OF MD CIRCUIT ...40 TROUBLE SHOOTING ...41 FUNCTION TABLE OF IC ...44 PARTS GUIDE/EXPLODED VIEW PACKING OF THE SET (MD-MS722 ONLY) SHARP CORPORATION - 1 - The contents are subject to be used for after sales service only. MD-MS722/C/W/MS721W SERVICE MANUAL No...
...only parts identical to those specified be used . CONTENTS Page SAFETY PRECAUTION FOR SERVICE MANUAL (MD-MS722W/MS721W ONLY 2 SPECIFICATIONS ...3 NAMES OF PARTS ...4 OPERATION MANUAL ...6 QUICK GUIDE (MD-MS722 ONLY) ...9 DISASSEMBLY ...11 INSTALLING THE TOP CABINET ...11 REMOVING AND REINSTALLING THE MAIN ...DIAGRAM ...39 WAVEFORMS OF MD CIRCUIT ...40 TROUBLE SHOOTING ...41 FUNCTION TABLE OF IC ...44 PARTS GUIDE/EXPLODED VIEW PACKING OF THE SET (MD-MS722 ONLY) SHARP CORPORATION - 1 - The contents are subject to be used for after sales service only. MD-MS722/C/W/MS721W SERVICE MANUAL No...
Service Manual
Page 2
... (Illustration: MD-MS722W) Precaution to interfere with the instructions given in this manual and do not attempt to be attempted when replacing or servicing the Pickup. (4) Under no circumstances look at any other than Class I Requirements. Use the portable minidisc recorder only in ...The Laser Power Output of procedures other adjustment as a CLASS 1 LASER product. max. 10 mW 0.5S min. MD-MS722/C/W/MS721W SAFETY PRECAUTION FORSERVICE MANUAL (MD-MS722W/MS721W ONLY) Precaution to the Laser Power should be taken when replacing and servicing the laser pickup. STRÅ...
... (Illustration: MD-MS722W) Precaution to interfere with the instructions given in this manual and do not attempt to be attempted when replacing or servicing the Pickup. (4) Under no circumstances look at any other than Class I Requirements. Use the portable minidisc recorder only in ...The Laser Power Output of procedures other adjustment as a CLASS 1 LASER product. max. 10 mW 0.5S min. MD-MS722/C/W/MS721W SAFETY PRECAUTION FORSERVICE MANUAL (MD-MS722W/MS721W ONLY) Precaution to the Laser Power should be taken when replacing and servicing the laser pickup. STRÅ...
Service Manual
Page 3
...remote control unit Earphones (impedance: 32 ohms)/ remote control unit MiniDisc Recorder Type: Signal readout: Audio channels: Frequency response: Rotation speed: Error correction: Coding: Recording method: Sampling frequency: Wow and flutter: Portable MiniDisc recorder Non-contact, 3-beam semi-coductor laser pick-up Stereo 2 ...converted to change without prior notice Input sensitivity: Recording level 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 - 3 - MD-MS722/C/W/MS721W FOR A COMPLETE DESCRIPTION OF THE OPERATION OF...
...remote control unit Earphones (impedance: 32 ohms)/ remote control unit MiniDisc Recorder Type: Signal readout: Audio channels: Frequency response: Rotation speed: Error correction: Coding: Recording method: Sampling frequency: Wow and flutter: Portable MiniDisc recorder Non-contact, 3-beam semi-coductor laser pick-up Stereo 2 ...converted to change without prior notice Input sensitivity: Recording level 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 - 3 - MD-MS722/C/W/MS721W FOR A COMPLETE DESCRIPTION OF THE OPERATION OF...
Service Manual
Page 4
... 32. Earphones Socket (MS722W) 35 37 37. 5V DC Input Jack (MS722/MS722C) 38 37. 5V DC Input Socket (MS722W) 38. Rechargeable Lithium-lon Battery Compartment - 4 - MD-MS722/C/W/MS721W MD-MS722/MS722C/MS722W NAME OF PARTS Remote control unit 1. Repeat Indicator: 5. Battery Indicator: 8. Synchro Recording Indicator 12. Track Name Indicator 15. Edit/Auto Mark/Time Mark...
... 32. Earphones Socket (MS722W) 35 37 37. 5V DC Input Jack (MS722/MS722C) 38 37. 5V DC Input Socket (MS722W) 38. Rechargeable Lithium-lon Battery Compartment - 4 - MD-MS722/C/W/MS721W MD-MS722/MS722C/MS722W NAME OF PARTS Remote control unit 1. Repeat Indicator: 5. Battery Indicator: 8. Synchro Recording Indicator 12. Track Name Indicator 15. Edit/Auto Mark/Time Mark...
Service Manual
Page 5
...Power Off Button: 18. Record Indicator 3. TOC Indocator 6. Battery Indicator: 7. Disc Mode Indicator 12. Volume/Name Select Buttons: - 23. Volume/Name Select Buttons: + 24. Enter/Fast Play/Synchro Button 27. Edit/Auto Mark/Time Mark Button 28. Optical/Line Input Socket 32. MD-MS722/C/W/MS721W 1 2 3 6.... Level Meter 4. Total Track Number Display 8. Repeat Indicator: 5. Disc Name Indicator 13. Eject Lever 31. MD-MS721W Remote control unit 1. Synchro Recording Indicator 2. Hold Switch 12. Play Mode Button 13. Bass Button 15. Display Button 16. Fast Reverse/Fast...
...Power Off Button: 18. Record Indicator 3. TOC Indocator 6. Battery Indicator: 7. Disc Mode Indicator 12. Volume/Name Select Buttons: - 23. Volume/Name Select Buttons: + 24. Enter/Fast Play/Synchro Button 27. Edit/Auto Mark/Time Mark Button 28. Optical/Line Input Socket 32. MD-MS722/C/W/MS721W 1 2 3 6.... Level Meter 4. Total Track Number Display 8. Repeat Indicator: 5. Disc Name Indicator 13. Eject Lever 31. MD-MS721W Remote control unit 1. Synchro Recording Indicator 2. Hold Switch 12. Play Mode Button 13. Bass Button 15. Display Button 16. Fast Reverse/Fast...
Service Manual
Page 6
... disconnected automatically. When you attempt to charge it is completely discharged, the whole battery indicator will begin charging. OPERATION MANUAL MD-MS722/C/W/MS721W - 6 - When the charging is complete, " " will appear. Recharge the battery or replace the alkaline battery...only first generation digital copies can be impossible. This is possible. Playback Digital cable Recording CD player, MD player, etc. Digitally recorded MiniDisc Playback Digital cable Recording Analogue recording is normal. Battery charging will be complete in . When the AC adaptor plug ...
... disconnected automatically. When you attempt to charge it is completely discharged, the whole battery indicator will begin charging. OPERATION MANUAL MD-MS722/C/W/MS721W - 6 - When the charging is complete, " " will appear. Recharge the battery or replace the alkaline battery...only first generation digital copies can be impossible. This is possible. Playback Digital cable Recording CD player, MD player, etc. Digitally recorded MiniDisc Playback Digital cable Recording Analogue recording is normal. Battery charging will be complete in . When the AC adaptor plug ...
Service Manual
Page 7
... The recording time will be displayed. When the remaining recording time of tracks: 254) If a MiniDisc has been recorded or edited repeatedly or if a MiniDisc has scratches on which repeated recording and ...4. If trouble occurs When this product is excessive steam or moisture. These are skipped. MD-MS722/C/W/MS721W - 7 - When the unit is dropped into the AC socket and retry the... from the earphones. TROUBLESHOOTING Moisture condensation In the following before calling your authorised SHARP dealer or service centre. When the unit has condensation inside, the disc signals...
... The recording time will be displayed. When the remaining recording time of tracks: 254) If a MiniDisc has been recorded or edited repeatedly or if a MiniDisc has scratches on which repeated recording and ...4. If trouble occurs When this product is excessive steam or moisture. These are skipped. MD-MS722/C/W/MS721W - 7 - When the unit is dropped into the AC socket and retry the... from the earphones. TROUBLESHOOTING Moisture condensation In the following before calling your authorised SHARP dealer or service centre. When the unit has condensation inside, the disc signals...
Service Manual
Page 8
.... Return the HOLD switch to , the unit cannot accept your command. Replace it was recorded. Edit the track with another recorded disc. MD-MS722/C/W/MS721W - 8 - Can't REC (Not REC) Can't WRITE DEFECT (DEFECT) Recording cannot be played. A disc has not been loaded. TEMP OVER (E-TEMP) TOC ERROR (E-TOC) ...replace the alkaline battery (or use the AC adaptor for a while. Load a disc. Wait for recording character information (track names, disc names, etc.). Turn off the power and remove the MiniDisc. BLANK DISC (BLANK) Can't COPY (Not REC) Can't EDIT Nothing is in the unit....
.... Return the HOLD switch to , the unit cannot accept your command. Replace it was recorded. Edit the track with another recorded disc. MD-MS722/C/W/MS721W - 8 - Can't REC (Not REC) Can't WRITE DEFECT (DEFECT) Recording cannot be played. A disc has not been loaded. TEMP OVER (E-TEMP) TOC ERROR (E-TOC) ...replace the alkaline battery (or use the AC adaptor for a while. Load a disc. Wait for recording character information (track names, disc names, etc.). Turn off the power and remove the MiniDisc. BLANK DISC (BLANK) Can't COPY (Not REC) Can't EDIT Nothing is in the unit....
Service Manual
Page 11
... PWB and flexible PWB. If a screw of flexible PWB with washer (Part code: LX-BZ0822AFFC, Distribution code: 124 970 0187). Figure 11-6 MD-MS722/C/W/MS721W DISASSEMBLY (A2)x2 Cares before disassembling ø1.4x2mm (A2)x1 ø1.4x2mm When assembling the machine after repair, be disabled. Battery Cover ............ (A1) x1 11-1 2. Flexble PWB B2) x2 11-2 Put the fold on the connector, and apply with the sheet metal. Figure 11-4 Figure 11-3 INSTALLING THE TOP CABINET Insert the key flexible PWB at first into the clearance of upper cabinet. Screw B1) x3...
... PWB and flexible PWB. If a screw of flexible PWB with washer (Part code: LX-BZ0822AFFC, Distribution code: 124 970 0187). Figure 11-6 MD-MS722/C/W/MS721W DISASSEMBLY (A2)x2 Cares before disassembling ø1.4x2mm (A2)x1 ø1.4x2mm When assembling the machine after repair, be disabled. Battery Cover ............ (A1) x1 11-1 2. Flexble PWB B2) x2 11-2 Put the fold on the connector, and apply with the sheet metal. Figure 11-4 Figure 11-3 INSTALLING THE TOP CABINET Insert the key flexible PWB at first into the clearance of upper cabinet. Screw B1) x3...
Service Manual
Page 12
... raise the optical pickup. Remove the solder joint (A1) x 1 of slide motor lead wire. 2. Remove the screw (B3) x 1 pc., and remove the lift motor. MD-MS722/C/W/MS721W REMOVING AND REINSTALLING THE MAIN PARTS Remove the mechanism according to the disassembling methods 1 to 3. (See Page 11.) (A2)x3 ø1.4x2.8mm How...the motor gear is not damaged. (If the gear is damaged, noise is caused.) How to remove the spindle motor (See Fig. 12-1.) 1. MD Mechanism Figure 12-2 Stop Washer (C1)x1 (C4)x2 ø1.4x1.2mm Drive Gear (C2)x1 Shaft Sled Motor (C3)x1 Mechanism Flexible PWB Solder...
... raise the optical pickup. Remove the solder joint (A1) x 1 of slide motor lead wire. 2. Remove the screw (B3) x 1 pc., and remove the lift motor. MD-MS722/C/W/MS721W REMOVING AND REINSTALLING THE MAIN PARTS Remove the mechanism according to the disassembling methods 1 to 3. (See Page 11.) (A2)x3 ø1.4x2.8mm How...the motor gear is not damaged. (If the gear is damaged, noise is caused.) How to remove the spindle motor (See Fig. 12-1.) 1. MD Mechanism Figure 12-2 Stop Washer (C1)x1 (C4)x2 ø1.4x1.2mm Drive Gear (C2)x1 Shaft Sled Motor (C3)x1 Mechanism Flexible PWB Solder...
Service Manual
Page 13
Type Test disc Parts No. 1 High reflection disc MMD-110 (TEAC Test MD) 2 Lowreflection disc MMD-212 (TEAC Test MD) 88GMMD-110 88GMMD-212 3 Low reflection disc Recording minidisc UDSKM0001AFZZ Note: Use the low reflection disc on individually.) • Cut-off frequency ...the PLAY button is turned on which music has been recorded. MD-MS722/C/W/MS721W Test disc ADJUSTMENT MD adjustment needs two types of DC IN. TEST-REC Mode • Continuous record from the specified address is performed. • Change of record laser output(servo gain is also changed according to standby...
Type Test disc Parts No. 1 High reflection disc MMD-110 (TEAC Test MD) 2 Lowreflection disc MMD-212 (TEAC Test MD) 88GMMD-110 88GMMD-212 3 Low reflection disc Recording minidisc UDSKM0001AFZZ Note: Use the low reflection disc on individually.) • Cut-off frequency ...the PLAY button is turned on which music has been recorded. MD-MS722/C/W/MS721W Test disc ADJUSTMENT MD adjustment needs two types of DC IN. TEST-REC Mode • Continuous record from the specified address is performed. • Change of record laser output(servo gain is also changed according to standby...
Service Manual
Page 14
... button is set to +1h. (0 to F) • When the SKIP DOWN button is pressed in B-ATT set value indication, the state is pressed while ADJ. MD-MS722/C/W/MS721W Operation in the REV direction. * When the SKIP UP/DOWN button is held down , jump is changed to the TEST mode STOOP state. 6.
... button is set to +1h. (0 to F) • When the SKIP DOWN button is pressed in B-ATT set value indication, the state is pressed while ADJ. MD-MS722/C/W/MS721W Operation in the REV direction. * When the SKIP UP/DOWN button is held down , jump is changed to the TEST mode STOOP state. 6.
Service Manual
Page 15
... [ C L E A R _ ] • : Error Code Explanation of sound volume, BASS, etc. is possible (without indication) • Recording is higher that the allowable tempera- Error data display Mode • Reversing when SKIP DOWN button is pressed • When the STOP button is _.... indication) [ A P ] | Continuous playback (C1 error indication) [ C E ] | Continuous playback (ADIP error indication) [ A E ] | Continuous playback (ADIP address indication) [ A P ] 8. ture. - 15 - MD-MS722/C/W/MS721W •Whenever the DISP button is in miserase-protected state. 9.
... [ C L E A R _ ] • : Error Code Explanation of sound volume, BASS, etc. is possible (without indication) • Recording is higher that the allowable tempera- Error data display Mode • Reversing when SKIP DOWN button is pressed • When the STOP button is _.... indication) [ A P ] | Continuous playback (C1 error indication) [ C E ] | Continuous playback (ADIP error indication) [ A E ] | Continuous playback (ADIP address indication) [ A P ] 8. ture. - 15 - MD-MS722/C/W/MS721W •Whenever the DISP button is in miserase-protected state. 9.