Operation Manual
Page 8
... Is le DC IN SV sod,* on de ha]. OW &OW a De sot mey emillenosod • Do nal VW eny CA, ~CA .noes. 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...
... Is le DC IN SV sod,* on de ha]. OW &OW a De sot mey emillenosod • Do nal VW eny CA, ~CA .noes. 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
...Optica cligM cehle (sJppheci To the OPTICAUUN ihi socket {Playback side E-8 • Type of recording Two types of recording, depending on the sockets Cr the equipment being connected to lI e unit. (1) Analogue recording Connect the unit to equipment that lee an optical output socket us ng the optical digtai Cable... writ the unit or optional optical digital cable ADNUCC) RIGHT L FT o the trio oulpUl ecckets to a MiroDisc allows very h gh quality record- • Maio equipment: CO Myer, MD player. CD player, MD player. There are different cables end ccnnecrions for each type of...
...Optica cligM cehle (sJppheci To the OPTICAUUN ihi socket {Playback side E-8 • Type of recording Two types of recording, depending on the sockets Cr the equipment being connected to lI e unit. (1) Analogue recording Connect the unit to equipment that lee an optical output socket us ng the optical digtai Cable... writ the unit or optional optical digital cable ADNUCC) RIGHT L FT o the trio oulpUl ecckets to a MiroDisc allows very h gh quality record- • Maio equipment: CO Myer, MD player. CD player, MD player. There are different cables end ccnnecrions for each type of...
Operation Manual
Page 17
...! iSee °EDITING', page 27.) Making a track number automatically: Press the EDIT/MARK button whilst the recording is paused. • `AUTO MARK" will be braked . recordings using a CD payer or en MD player, track numbers will start Hate: • Mel there Is a track that point. Warning: •... Al of the tracks that follow the newly recorded track will be created auto-ea/wally regardless of a...
...! iSee °EDITING', page 27.) Making a track number automatically: Press the EDIT/MARK button whilst the recording is paused. • `AUTO MARK" will be braked . recordings using a CD payer or en MD player, track numbers will start Hate: • Mel there Is a track that point. Warning: •... Al of the tracks that follow the newly recorded track will be created auto-ea/wally regardless of a...
Operation Manual
Page 21
...the wcorded or edited contents will be lost if the TOO information is not recorded properly. • It the AC adapter is nformaton about the track numbers and recorded areas that intornation in the TOG 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. tery or battery case. TOO EDIT' I I I GOOD EYE! Do not jar or bump the main unit - The entire MD...
...the wcorded or edited contents will be lost if the TOO information is not recorded properly. • It the AC adapter is nformaton about the track numbers and recorded areas that intornation in the TOG 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. tery or battery case. TOO EDIT' I I I GOOD EYE! Do not jar or bump the main unit - The entire MD...
Operation Manual
Page 28
... tracks Wowing he frank which come ate- A B POgj 'j-07. Since track names are displayed when the beginning 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 me tracks and you can create disc or track names. •... newly diviced back w.11 be automatically increased by one . E-27 EDITING • Whet the adding function can do you can create original discs using the MD °citing function, on can be translerred onto a recordable MD.
... tracks Wowing he frank which come ate- A B POgj 'j-07. Since track names are displayed when the beginning 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 me tracks and you can create disc or track names. •... newly diviced back w.11 be automatically increased by one . E-27 EDITING • Whet the adding function can do you can create original discs using the MD °citing function, on can be translerred onto a recordable MD.
Operation Manual
Page 33
...) • This forcti0n can not be performed from slap 2 5 LReading t 6 (CHANGE MD E-32 • Check whether the total number of seeks on the newly recorded MiniDisc matches the total number of tracks on the news recorded (AMPS, the unit will dist:tied "Can't WHITE" and the power will be cancelled. ...7 Load the newly recorded MinDisc into the MCAMS7.22W. • Do not mistake the master MiniDisc for the newly recorded MiniDhc. 3 WaIst in the stop mode, press the EDIT,MARK button and turn thetogdial to select "...
...) • This forcti0n can not be performed from slap 2 5 LReading t 6 (CHANGE MD E-32 • Check whether the total number of seeks on the newly recorded MiniDisc matches the total number of tracks on the news recorded (AMPS, the unit will dist:tied "Can't WHITE" and the power will be cancelled. ...7 Load the newly recorded MinDisc into the MCAMS7.22W. • Do not mistake the master MiniDisc for the newly recorded MiniDhc. 3 WaIst in the stop mode, press the EDIT,MARK button and turn thetogdial to select "...
Operation Manual
Page 38
tl dust enters tne opening of an ex- Please note the loliowir• • Handling the MiniDisc Do not touch the disc directly! the IlliniDisc may jam inside the unit and it may not be read, and the unll may net function ... unit is placed in places where sand can get into the cartridge easily (e.g, beaches) • Helpful lip when attaching a label When attaching a .abel to ar MD canricge, he unit has condensation inside. The unit will then fund on the cartridge. et it s not within the specified area, it may cause try...
tl dust enters tne opening of an ex- Please note the loliowir• • Handling the MiniDisc Do not touch the disc directly! the IlliniDisc may jam inside the unit and it may not be read, and the unll may net function ... unit is placed in places where sand can get into the cartridge easily (e.g, beaches) • Helpful lip when attaching a label When attaching a .abel to ar MD canricge, he unit has condensation inside. The unit will then fund on the cartridge. et it s not within the specified area, it may cause try...
Service Manual
Page 1
...30 NOTES ON SCHEMATIC 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 - MD-MS722/C/W/MS721W SERVICE MANUAL No. This document has ...been published to be restored to its original condition and only parts identical to change without notice. SX891MDMS722U (Illustration: MD-MS722/MS722C/MS722W) MD-MS722 MD-MS722C MD-MS722W MD-MS721W(BL) MD-MS721W(S) (Illustration: MD-...
...30 NOTES ON SCHEMATIC 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 - MD-MS722/C/W/MS721W SERVICE MANUAL No. This document has ...been published to be restored to its original condition and only parts identical to change without notice. SX891MDMS722U (Illustration: MD-MS722/MS722C/MS722W) MD-MS722 MD-MS722C MD-MS722W MD-MS721W(BL) MD-MS721W(S) (Illustration: MD-...
Service Manual
Page 2
MD-MS722/C/W/MS721W SAFETY PRECAUTION FORSERVICE MANUAL (MD-MS722W/MS721W ONLY) Precaution to be...servicing the Pickup. (4) Under no circumstances look at any other than Class I Requirements. Use the portable minidisc recorder only in accordance with the instructions given in hazardous radiation exposure. cycle 1.5S Repetition CAUTION - ADVARSEL -...LING NÅR DEKSEL ÅPNES OG SIKKERHEDSLÅS BRYTES. UNDGÅ UDSETTELSE FOR STRÅLING. (Illustration: MD-MS722W) Precaution to interfere with the interlock switch or make any time. (5) CAUTION - In order to detect a...
MD-MS722/C/W/MS721W SAFETY PRECAUTION FORSERVICE MANUAL (MD-MS722W/MS721W ONLY) Precaution to be...servicing the Pickup. (4) Under no circumstances look at any other than Class I Requirements. Use the portable minidisc recorder only in accordance with the instructions given in hazardous radiation exposure. cycle 1.5S Repetition CAUTION - ADVARSEL -...LING NÅR DEKSEL ÅPNES OG SIKKERHEDSLÅS BRYTES. UNDGÅ UDSETTELSE FOR STRÅLING. (Illustration: MD-MS722W) Precaution to interfere with the interlock switch or make any time. (5) CAUTION - In order to detect a...
Service Manual
Page 3
MD-MS722/C/W/MS721W FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TO THE OPERATION MANUAL. SPECIFICATIONS General Power source: (MS722/MS722C) Power source: (MS722W/MS721W) Power consumption: (MS722/MS722C) Power consumption: (MS722W/MS721W) Output power: Charging time: ...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...
MD-MS722/C/W/MS721W FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TO THE OPERATION MANUAL. SPECIFICATIONS General Power source: (MS722/MS722C) Power source: (MS722W/MS721W) Power consumption: (MS722/MS722C) Power consumption: (MS722W/MS721W) Output power: Charging time: ...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...
Service Manual
Page 4
...Socket (MS722W) 38. Battery Indicator: 10. Jog Dial 18. Optical/Line Input Jack (MS722/MS722C) 32. Record Indicator 3. Random Indicator 9. Record/Track Mark Button 19. Eject Lever 32. Earphones Socket (MS722W) 11. Track Name Indicator...Record Indicator 4. Disc Name Indicator 14. Volume/Name Select Buttons: - 20. Bass/Delete Button 28. Total Track Number Display 8. Rechargeable Lithium-lon Battery Compartment - 4 - Battery Case Connection Terminals 36 36. Repeat Indicator: 6. Microphone Input Jack (MS722/MS722C) 33. MD-MS722/C/W/MS721W MD-MS722...
...Socket (MS722W) 38. Battery Indicator: 10. Jog Dial 18. Optical/Line Input Jack (MS722/MS722C) 32. Record Indicator 3. Random Indicator 9. Record/Track Mark Button 19. Eject Lever 32. Earphones Socket (MS722W) 11. Track Name Indicator...Record Indicator 4. Disc Name Indicator 14. Volume/Name Select Buttons: - 20. Bass/Delete Button 28. Total Track Number Display 8. Rechargeable Lithium-lon Battery Compartment - 4 - Battery Case Connection Terminals 36 36. Repeat Indicator: 6. Microphone Input Jack (MS722/MS722C) 33. MD-MS722/C/W/MS721W MD-MS722...
Service Manual
Page 5
Record Indicator 4. Disc Mode Indicator 7. Display Button 16. Fast Reverse/Fast Foward Buttons: Main unit 1. Level Meter 4. Track Number Indicator 9. Disc Mode Indicator 12. Play/Pause Button: 20. Hold Switch 34. Rechargeable Lithium-lon Battery Compartment - 5 - MD-MS722/C/W/MS721W 1 2 3 6 SYNC ... Button: 17. Disc Name Indicator 13. Battery Case Connection Terminals 35. Synchro Recording Indicator 2. Earphones Socket 36. 5V DC Input Socket 37. MD-MS721W Remote control unit 1. Monaural Long-Play Mode Indicator 2. Character/Time Information Indicator...
Record Indicator 4. Disc Mode Indicator 7. Display Button 16. Fast Reverse/Fast Foward Buttons: Main unit 1. Level Meter 4. Track Number Indicator 9. Disc Mode Indicator 12. Play/Pause Button: 20. Hold Switch 34. Rechargeable Lithium-lon Battery Compartment - 5 - MD-MS722/C/W/MS721W 1 2 3 6 SYNC ... Button: 17. Disc Name Indicator 13. Battery Case Connection Terminals 35. Synchro Recording Indicator 2. Earphones Socket 36. 5V DC Input Socket 37. MD-MS721W Remote control unit 1. Monaural Long-Play Mode Indicator 2. Character/Time Information Indicator...
Service Manual
Page 6
...) If the rechargeable battery is used first, and then the alkaline battery. Digitally recorded MiniDisc Playback Digital cable Recording Analogue recording is normal. OPERATION MANUAL MD-MS722/C/W/MS721W Battery charging will be disconnected automatically. When the AC adaptor plug is inserted and a MiniDisc has already been inserted, playback may be sure to charge it is impossible to...
...) If the rechargeable battery is used first, and then the alkaline battery. Digitally recorded MiniDisc Playback Digital cable Recording Analogue recording is normal. OPERATION MANUAL MD-MS722/C/W/MS721W Battery charging will be disconnected automatically. When the AC adaptor plug is inserted and a MiniDisc has already been inserted, playback may be sure to charge it is impossible to...
Service Manual
Page 7
... be resolved by one. For MiniDiscs on it instead of tracks: 254) If a MiniDisc has been recorded or edited repeatedly or if a MiniDisc has scratches on the disc. When the unit is placed in the hold mode? If this product, check the following before calling your authorised SHARP dealer or service centre. Are you ... the hold mode? If there are impossible. Is the unit in approximately 1 hour. Is the AC adaptor unplugged or did a power failure occur whilst recording or editing? MD-MS722/C/W/MS721W - 7 - Is the unit being subjected to the other equipment?
... be resolved by one. For MiniDiscs on it instead of tracks: 254) If a MiniDisc has been recorded or edited repeatedly or if a MiniDisc has scratches on the disc. When the unit is placed in the hold mode? If this product, check the following before calling your authorised SHARP dealer or service centre. Are you ... the hold mode? If there are impossible. Is the unit in approximately 1 hour. Is the AC adaptor unplugged or did a power failure occur whilst recording or editing? MD-MS722/C/W/MS721W - 7 - Is the unit being subjected to the other equipment?
Service Manual
Page 8
... its original position. Turn off the power and remove the MiniDisc. Erase all of recording space. Record using the analogue cable. If the sound you purchased the unit. Replace it with another recorded disc. A track cannot be performed correctly due to its ...Error messages seen on which it repaired, go to record on a playbackonly disc. Can't REC (Not REC) Can't WRITE DEFECT (DEFECT) Recording cannot be edited. Replace it with another recorded disc. You have it was moved during recording or editing. MD-MS722/C/W/MS721W - 8 - ERROR MESSAGES Error messages BATT...
... its original position. Turn off the power and remove the MiniDisc. Erase all of recording space. Record using the analogue cable. If the sound you purchased the unit. Replace it with another recorded disc. A track cannot be performed correctly due to its ...Error messages seen on which it repaired, go to record on a playbackonly disc. Can't REC (Not REC) Can't WRITE DEFECT (DEFECT) Recording cannot be edited. Replace it with another recorded disc. You have it was moved during recording or editing. MD-MS722/C/W/MS721W - 8 - ERROR MESSAGES Error messages BATT...
Service Manual
Page 11
...hand so as to (A2)x1 ensure safety and performance. ø1.4x2.5mm (B1)x1 ø1.4x2mm (A1)x1 1. MD-MS722/C/W/MS721W DISASSEMBLY (A2)x2 Cares before disassembling ø1.4x2mm (A2)x1 ø1.4x2mm When assembling the machine after repair, be ...screws are small, incorrect fixing may result in contact with the felt. Sagging may result in the arrow direction. (Illustration: MD-MS722) 11-3 Pull Pull Pull Pull Pull Pull (C3)x3 (C2)x1* (C2)x1 Flexble PWB for the optical pickup ...Flexble PWB B2) x2 11-2 Put the fold on the connector, and apply with the sheet metal.
...hand so as to (A2)x1 ensure safety and performance. ø1.4x2.5mm (B1)x1 ø1.4x2mm (A1)x1 1. MD-MS722/C/W/MS721W DISASSEMBLY (A2)x2 Cares before disassembling ø1.4x2mm (A2)x1 ø1.4x2mm When assembling the machine after repair, be ...screws are small, incorrect fixing may result in contact with the felt. Sagging may result in the arrow direction. (Illustration: MD-MS722) 11-3 Pull Pull Pull Pull Pull Pull (C3)x3 (C2)x1* (C2)x1 Flexble PWB for the optical pickup ...Flexble PWB B2) x2 11-2 Put the fold on the connector, and apply with the sheet metal.
Service Manual
Page 12
... 12-3.) 1. Remove the solder joint (A1) x 1 of slide motor lead wire. 2. Remove the screws (C4) x 2 pc., and remove the sled motor. 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...connects the magnetic head to remove the lift motor (See Fig. 12-2.) 1. Remove the screws (A2) x 3 pcs., and remove the spindle 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...
... 12-3.) 1. Remove the solder joint (A1) x 1 of slide motor lead wire. 2. Remove the screws (C4) x 2 pc., and remove the sled motor. 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...connects the magnetic head to remove the lift motor (See Fig. 12-2.) 1. Remove the screws (A2) x 3 pcs., and remove the spindle 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...
Service Manual
Page 13
...is displayed. 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 of BASS1...indication "INIT" -> "BYE OK" disappears, release the power supply of disc, namely recording disc (low reflection disc) and playback-only disc (high reflection disc). MD-MS722/C/W/MS721W Test disc ADJUSTMENT MD adjustment needs two types of DC IN. Setting at port (in the standby state (...
...is displayed. 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 of BASS1...indication "INIT" -> "BYE OK" disappears, release the power supply of disc, namely recording disc (low reflection disc) and playback-only disc (high reflection disc). MD-MS722/C/W/MS721W Test disc ADJUSTMENT MD adjustment needs two types of DC IN. Setting at port (in the standby state (...
Service Manual
Page 14
..., the state is pressed while ADJ. If the VOL DOWN button is not output. • Be sure to adjust, using the specified disc MMD-212. MD-MS722/C/W/MS721W Operation in the RAM. • When the VOL UP/DOWN button is held down , the setting changes continuously, one cycle being 100 ms. •...
..., the state is pressed while ADJ. If the VOL DOWN button is not output. • Be sure to adjust, using the specified disc MMD-212. MD-MS722/C/W/MS721W Operation in the RAM. • When the VOL UP/DOWN button is held down , the setting changes continuously, one cycle being 100 ms. •...
Service Manual
Page 15
... SD write data write disabled 71h : Pickup position initialization time-over 72h : EEPROM data read check sum error 73h : Record head drive disabled (by EJECT lever) 82h : Power overvoltage detection 91h : Ambient temperature is also possible. 10. NORMAL ... Error Code Explanation of error history code 12h : RF side FG, TG, and TCRS adjustment termination failure 13h : Adjustment servo retraction excessive retrial 16h : C. MD-MS722/C/W/MS721W •Whenever the DISP button is pressed in the continuous playback mode, the indication changes as follows. 0050 - 0050 - 0050 - 0050 - 0050 -...
... SD write data write disabled 71h : Pickup position initialization time-over 72h : EEPROM data read check sum error 73h : Record head drive disabled (by EJECT lever) 82h : Power overvoltage detection 91h : Ambient temperature is also possible. 10. NORMAL ... Error Code Explanation of error history code 12h : RF side FG, TG, and TCRS adjustment termination failure 13h : Adjustment servo retraction excessive retrial 16h : C. MD-MS722/C/W/MS721W •Whenever the DISP button is pressed in the continuous playback mode, the indication changes as follows. 0050 - 0050 - 0050 - 0050 - 0050 -...