Sharp MD-R2 Serivce Manual Download Page 9

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MD-R2

– 9 –

Figure 9-2

Figure 9-1

Figure 9-3

MD Main PWB

(L2)x1

Pull

Pickup Flexible
PWB (*1)

Frame

( L2 ) x 1

( L2 ) x 3

( L2 ) x 1

( L1 ) 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.

(M1)x4
ø1.7x8.9mm

MD Mechanism

• Jog knob replacement procedure

Jog Knob

Jog Decoration

Figure 9-4

Figure 9-5

Display PWB

Remove the pawl of jog decoration with fine piece
such as tweezers, press, and remove the jog knob
with jog decoration.

Remove the pawl of jog decoration
with fine piece such as tweezers,
press, and remove the jog knob with
jog decoration.

Jog Decoration

Jog Knob

FL Window

Front Panel

Display PWB

Summary of Contents for MD-R2

Page 1: ...ING THE MAIN PARTS 10 ADJUSTMENT 12 EXPLANATION OF ERROR DISPLAY 24 EXPLANATION OF MECHANISM ERROR 25 BLOCK DIAGRAM 28 SCHEMATIC DIAGRAM WIRING SIDE OF P W BOARD 30 VOLTAGE MD MAIN PWB 42 NOTES ON SCHEMATIC DIAGRAM 43 WAVEFORMS OF MD CIRCUIT 44 TROUBLE SHOOTING 46 FUNCTION TABLE OF IC 51 PARTS GUIDE EXPLODED VIEW PACKING OF THE SET SERVICE MANUAL SHARP CORPORATION No S1805MDR2 This document has be...

Page 2: ... LINE OUT Pin jack 2 Vrms 50 kohms OPTICAL Square optical connector OUT Optical Socket shape BEFORE RETURNING THE AUDIO PRODUCT Fire Shock Hazard Before returning the audio product to the user perform the following safety checks 1 Inspect all lead dress to make certain that leads are not pinched or that hardware is not lodged between the chassis and other metal parts in the audio product 2 Inspect...

Page 3: ...ject Button 22 Remote Sensor 23 Cue Review Button 24 Display Character Button 25 Name TOC Edit Button 26 Record Level Control 27 Headphone Level Control 28 Headphone Jack 29 Power Button 30 Stop Button 31 Play Pause Button 32 Record Button 33 Input Select Button 34 Program Button 35 Jog Dial Next Previous 36 Enter Button 37 Delete Clear Timer Button Rear panel 1 AC Power Cord 2 Coaxial Input Jack ...

Page 4: ...rn 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 Th...

Page 5: ...als cannot be read and the product may not function properly If this happens remove the disc and open the disc holder The condensation should evaporate in approxi mately 1 hour The unit will then function properly If a problem occurs If this product is subjected to strong external inter ference mechanical shock excessive static electricity abnormal supply voltage due to lightning etc or if it is o...

Page 6: ...Y 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 recordin...

Page 7: ...ción SYNC REC INPUT SELECT ENTER NAME TOC EDIT ENTER ENTER ENTER NAME TOC EDIT ENTER ENTER NAME TOC EDIT NAME TOC EDIT ENTER ENTER DIVIDE DIVISIÓN COMBINE COMBINACIÓN ERASE BORRADO MOVE DESPLAZAMIENTO Start playing the music you want to record using the other equipment Inicie la reproducción de la música que desee grabar usando el otro equipo Remote control Control remoto Select the direction to m...

Page 8: ...rew 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 x5 8 2 2 Flat Cable D2 x1 3 Socket D3 x1 5 Main PWB 1 Screw E1 x6 8 2 with Transformer 6 Jog Dial 1 Knob F1 x1 8 3 2 Nut F2 x1 7 Display PWB 1 Screw G1 x10 8 3 2 Knob G2 x2 8 Headphones PWB 1 Screw H1 x1 8 3 9 Switch PWB 1 Screw J1 x5 8 3 10 MD Mechanism 1 Screw K1 x4 8 4 Unit 11 MD Main PWB 1 Scre...

Page 9: ... as to prevent electrostatic damage of optical pickup M1 x4 ø1 7x8 9mm MD Mechanism Jog knob replacement procedure Jog Knob Jog Decoration Figure 9 4 Figure 9 5 Display PWB Remove the pawl of jog decoration with fine piece such as tweezers press and remove the jog knob with jog decoration Remove the pawl of jog decoration with fine piece such as tweezers press and remove the jog knob with jog deco...

Page 10: ...V to the red line side of blue connector of loading motor push the rack gear in the arrow direction to move the 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 10 3 1 Remove the screws C1 x 2 pcs and remove the mecha nism switc...

Page 11: ...11 3 How to remove the spindle motor See Fig 11 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 11 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 Spindl...

Page 12: ...ected 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 ...

Page 13: ...59AFZZ 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 sta...

Page 14: ...al 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 switc...

Page 15: ...t 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 adjustm...

Page 16: ...button Offset tentative measurement Laser ON L O N _ _ _ _ _ _ Step 9 Press once the ENTER button Innermost periphery move RF side FG rough adjustment R F g _ _ Step 10 Press once the ENTER button Focus ATT A signal tentative setting S A g Step 11 Press once the ENTER button Focus ATT B signal tentative setting S B g Step 12 Press once the ENTER button RF side pit section TG adjustment P T G _ _ S...

Page 17: ...TER button Laser ON L O N _ _ _ _ _ _ Step 5 Press once the ENTER button Innermost periphery move Tracking ATT E signal setting P E G Step 6 Press once the ENTER button Tracking ATT F signal setting P F G Step 7 Press once the ENTER button Indication of tracking EFMIO measurement pit section P M I _ _ _ Step 8 Press once the ENTER button Focus ATT A signal setting L A g Step 9 Press once the ENTER...

Page 18: ...4 _ _ _ _ _ Step 13 Press once the ENTER button Spindle system loop filter f characteristic constant 5 setting S P 5 _ _ _ _ _ Step 14 Press once the ENTER button Spindle drive output limitter setting S P D L I M _ _ b Spindle setting Step No Setting Method Remarks Display Setting volue Pressing the REC button causes reversing When the jog key is turned upward while the setting is displayed the se...

Page 19: ...e level setting for 10 lines jump auxiliary use S L K L V t _ _ Step 11 Press once the ENTER button Slide kick pulse level setting move S L K L V m _ _ Step No Setting Method Remarks Display Setting volue Pressing 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 LSI When the jog key is turned downw...

Page 20: ...eflection pit L D E Q A D_ _ Step 11 Press once the ENTER button Setting of equalizer coefficients A and D low reflection groove G D E Q A D_ _ Step 12 Press once the ENTER button Setting of equalizer coefficients B and C high reflection H D E Q B C_ _ Step 13 Press once the ENTER button Setting of equalizer coefficients B and C low reflection pit L D E Q B C_ _ Step 14 Press once the ENTER button...

Page 21: ...e FWD REV direction If the button is held down the setting changes with 100 ms cycle Whenever the CD STOP button is pressed in the continuous playback mode the indication changes as follows Pit section Continuous playback SUBQ address indication C1 error indication remains Groove section Continuous playback ADIP address indication C1 error indication remains Continuous playback ADIP address indica...

Page 22: ...te p p w _ _ _ _ _ _ _ CHARACTER button Step 5 Press the DELETE CLEAR button TEMP setting of EEPROM setting Refer to TEMP setting of EEPROM Step 6 Press the NAME TOC EDIT button CONTROL setting of EEPROM setting Refer to CONTROL setting of EEPROM Step No Setting Method Remarks Display Lead in switch position measurement mode Note Adjust the lead in switch position to 5FF85 to FFD2 1 Loosen the scr...

Page 23: ...heck the Lissajou s waveform shifting the mounting position with a screwdriver to be fitted into the disc motor adjusting hole Spindle Motor Adjusting hole 2 Jitter adjustment and checking method Figure 23 3 Jitter connection diagram jitter Meter 1pin of IC 1201 TP1274 EFMMON 88 pin of IC 1201 TP1275 GND After performing automatic adjustment in AUTO mode of TEST mode using the low reflection MD di...

Page 24: ...ecording if music data resulting in record failure TOC was read but data was not correct TOC could not be rad Trouble occurred during rewriting of UTOC resulting in UTOC rewriting failure After the disc was loaded focusing failure occurred EXPLANATION OF ERROR DISPLAY Error display Errors Corrective action Can t REC Can t COPY Din UNLOCK TOC FULL UTOC ERR R UTOC ERR A UTOC ERR L0 4 NOT AUDIO DISC ...

Page 25: ...d start up the test mode 4 Indication of version t s m e E2 PROM version c to z Microcomputer ROM version Model code 5 Press the ENTER button 7 times E E P R O M S E T 6 Perform the operation shown in the E2 PROM setting mode chart compare the indication with the E2 PROM data list and make a setting according to the E2 PROM data list using JOG key 7 Set the temperature reference value Refer to Tem...

Page 26: ... V o 5 3 H T R B L V t 6 0 H T R K L V o 4 C H T R K L V t 3 8 H T D P W o 8 9 H T D P W t 1 A H S L C T o 0 0 H S L C T t 4 0 H S L C T m 5 3 H T C R S C I P 1 6 H C O T L V P 1 4 H C O T L V r 2 8 H W A I T m F F H Slide setting Item indication Initial Setting S L G 3 5 H S L 2 2 7 H S L D L I M 6 5 H S L D L E V 1 6 H S L K L V k 5 5 H S L K L V t 3 A H S L K L V m 5 5 H Control setting Item in...

Page 27: ...T R K L V t _ _ S P G _ _ _ _ _ S L G _ _ _ _ _ T E M P_ _ C O N T R L 1 _ C O N T R L 2 _ S L 2 _ _ _ _ _ S L D L E V _ _ S L K L V k _ _ S L K L V t _ _ S L K L V m _ _ S P 1 _ _ _ _ _ S P 2 _ _ _ _ _ S P 3 _ _ _ _ _ S P 4 _ _ _ _ _ S P 5 _ _ _ _ _ S P G _ i n _ _ S P G _ m i d _ S P G _ o u t _ F F 2 _ _ _ _ _ F Z C L E V _ _ F O K L E V n _ F O K L E V f _ F O K L P F n _ F O K L P F f _ W A I...

Page 28: ... D GND D GND D GND D GND DSTB MDDATA KDATA 4M DRAM ENDEC ATRAC IC1201 LR376481 OSCILLATOR XL1201 33 8688MHz SW1956 SW1955 SW1954 SW1953 SW1952 Q1251 Q1254 MD RECORDING HEAD M901 SPINDLE MOTOR M902 SLED MOTOR M903 LOADING SWITCH RECSWITCH PLAYSWITCH LEAD INSWITCH A BSIGNAL E FSIGNAL RF1 RF4SIGNAL HEAD DRIVE SIGNAL IC1251 IC1101 IR3R55 RF SIGNAL PROCESSOR LOADING MOTOR HEAD UP DOWN M M DIRECT SWITCH...

Page 29: ... 5V MD 5V MD S ID SYN RESET DSTB DSCK K DATA MD DATA FL DISPLAY B FL901 DIG SEG JOG KEY RX IN IC901 IX0237AW SYSTEM MICROCOMPUTER MD MUTE SW901 JOG SWITCH KEY IN BLOCK UN970 REMOTE SENSOR FL VP 31V A D 5V BACK UP 5V FL POWER CIRCUIT FL VP 32V FL DISPLAY B RECTIFYING CIRCUIT F551 1A F552 1A T551 POWER TRANSFORMER AC 120V 60Hz HEADPHINES J981 H P VOL VR981 IC651 NJM4560D OPE AMP Q451 Q452 MUTE J101 ...

Page 30: ...13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 ANALOG LINE IN2 ANALOG PLAYBACK SIGNAL ANALOG RECORD SIGNAL DIGITAL RECORD SIGNAL DIGITAL PLAYBACK SIGNAL C524 1000 6 3 J301 L101 0 22µH C102 0 022 C120 0 01 C315 0 01 R305 56K R304 2 7K R303 220K R409 220K R554 68K C531 0 1 C314 0 022 C310 0 022 C470 100P C675 0 001 R410 220K R408 220K R407 220K R406 220K R405 330 C212 3 3 16 C519 0 022 R417 1K R418...

Page 31: ...SS133 C655 10 16 C656 10 16 R617 330 C613 47 10 R618 330 C614 47 10 R417 1K R418 1K C205 4 7 25 C203 47 10 C202 47 10 L201 10µH L202 10µH C658 220 10 C657 220 10 R668 82 C666 100 10 R667 82 C665 100 10 R670 330 D651 MTZJ9 1B R669 2 7K C616 100 10 Q506 2SD2012 Y Q503 2SD468 C Q504 2SD2012 Y C201 100 10 C456 820P R454 33K C457 0 022 C461 0 01 R203 1M R202 680K C209 4 7 25 C206 1 50 R504 33K R601 470...

Page 32: ...VR_R_OUT HP_AMP_L_OUT HP_AMP_R_OUT GND OPEN AUX_AMP_L_IN AUX_AMP_R_IN HP_AMP_GND AUX_VR_L_OUT AUX_AMP_R_GND AUX_AMP_L_GND R L DISPLAY PWB B1 B NAME 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 10 11 12 R951 1 2K R950 1K UN970 CNS902 CNP903 SW954 R953 1 8K SW953 R952 1 5K R9 6 8 R970 1K R971 100 CNP902 CNS903 CNS901 CNP904 SW952 SW951 SW950 R968 10K R960 33K SW962 R959 3 9K R954 1K SW955 SW961 SW96...

Page 33: ...EG01 USEG02 USEG03 USEG04 USEG05 USEG06 USEG07 USEG08 JOG SW B A 50 53 52 51 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 10 11 12 1314 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 3738 39 40 41 42 43 44 45 46 47 USEG32 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74...

Page 34: ...98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 ADMUT EMPH 82 81 1 2 Q1252 2SK2909 Q1254 2SK1473 Q1251 2SK2909 Q1253 2SK1473 TP1601 CNP1601 CW1901 TP1602 TP1604 TP1605 TP1260 C1252 120P CH TP1255 C1251 0 027 R1251 10 CNP1252 D1252 SB0209CP D1251 SB0209CP R1223 680 TP1251 TP1252 CNS1252 C1211 1 TP1275 C1202 1 IC1101 IR3R55 SIGNAL PROSESSOR C1104 0 027 C1105 10 TP1132 TP1133 TP1134 TP1135 TP1136 ...

Page 35: ... XRST DINT MCCK CIN DSENSE FOK EEPK EEPD SYD0 EPCS EPCS EEPK EEPD SYD1 LDON PRO PRO SYD3 1 SYD2 XRST SYD4 SYD5 SYD6 SYD7 SYWR SYRD SYRS FOK A9 LOADIN RESET 2 1 3 SERCH KDATA DSCK MDDATA DSTB DADATA BCLK LRCK AD DFCK DFCK BCLK LRCK ADDATA DADATA STID NC CNP471 TO MAIN PWB P30 4 H 2 3 1 2 3 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 9 40 41 42 43 44 45 46 47 48 49 50 ...

Page 36: ...7 J1921 IC1251 Q1254 Q1253 C1255 C1254 R1223 R1967 R1969 R1968 R1964 IC1916 IC1202 C1206 IC1906 IC1907 C1964 C1958 C1951 R1971 R1409 IC1990 C1954 R1963 R1962 C1955 C1990 D1990 C1953 C1992 R1961 C1952 CN1603 L1601 R1668 R1669 R1617 Q1601 R1609 R1612 R1611 C1604 R1610 R1614 R1613 C1610 XL1201 C1207 RC120 C1203 R1202 C1205 R1201 C1204 R1221 C1210 L1203 C1424 R1107 C1101 C1145 R1166 C1211 C1202 R1100 ...

Page 37: ...0 45 50 51 55 60 65 70 75 80 81 85 90 95 1 4 8 5 1 2 3 4 5 42 40 35 30 25 22 21 20 15 10 5 1 1 2 1 5 10 12 13 15 20 24 25 30 35 36 37 40 45 48 TO MD LOADING MOTOR P41 8 D TO MECHANISM SWITCH PWB CN1901 CW1901 4 8 BR COLOR TABLE RD R OR YL GR BL VL GY WH W BK PK BROWN RED ORANGE YELLOW GREEN BLUE VIOLET GRAY WHITE BLACK PINK 5 1 6 7 9 P41 11 C TP1512 TP1517 TP1519 TP1516 TP1522 TP1520 TP1524 TP1518...

Page 38: ... C501 C521 C561 R502 R304 R303 R310 C302 C504 R551 D555 T551 POWER TRANSFORMER R413 R412 R410 C524 C512 D504 Q505 C519 C531 C522 D513 D512 C303 R509 C514 C513 D505 Q504 Q506 C510 D503 C509 Q502 24 R505 C551 C552 D509 Q503 R508 R507 4 3 2 1 IC302 1 7 8 14 R308 IC301 1 7 8 14 R313 D502 R511 R554 C511 R506 R516 D508 D510 C520 R514 R517 R518 C507 D501 R504 C505 Q501 R503 F552 1A F551 1A J301 C315 C313...

Page 39: ... C118 R110 C108 CNP473 1 2 3 4 5 6 7 8 9 101112 D651 R413 R412 R414 R415 R416 R410 C201 R553 R552 Q653 R402 R404 R403 R401 R409 R407 R406 R408 C524 Q505 C519 C531 C514 513 D505 Q504 Q506 24 1 R505 4 3 2 1 IC302 7 8 C666 R313 Q451 R667 R668 C658 R614 R116 R613 R203 R202 C657 C515 IC501 C516 C653 C665 C530 IC651 1 4 1 4 5 8 5 8 C652 C675 C654 L202 C615 IC601 C608 R610 C607 R609 C612 R612 R611 C611 R...

Page 40: ... C917 RA934 RA935 RA936 RA937 R904 R905 R955 R956 R957 C903 C914 C915 C902 R934 R935 R936 R937 R938 R939 R940 R941 R942 R943 R944 R945 R933 R932 R931 R930 CNP902 CNP904 CNS901 1 2 3 CNP903 1 2 3 1 2 3 UN970 1 3 SWITCH PWB B2 HEADPHONES PWB B3 DISPLAY PWB B1 1 12 1 2 3 4 5 6 7 8 9 10 11 12 CNP473 TO MAIN PWB P39 12 D CNP472 TO MAIN PWB P39 8 H 1 24 J981 HEADPHONES 1 3 NAME DISP TIMER CUE ENTER PLAY...

Page 41: ... MAIN PWB P36 1 E CN1603 TO MD MAIN PWB P36 6 F TO MD MAIN PWB P36 6 B MD SPINDLE M901 1 2 RD BK P36 1 G CNS1252 P37 12 F MD SLED M902 1 2 RD BK MD LOADING M903 1 2 RD BK R1901 R1902 R1903 R1904 1 2 VL VL CN1901 SW1955 RECORD SW1953 LEAD IN MAGNETIC HEAD 40 SW1954 PLAY SW1956 LOADING SW1952 DIRECT 1 2 3 5 4 BR COLOR TABLE RD R OR YL GR BL VL GY WH W BK PK BROWN RED ORANGE YELLOW GREEN BLUE VIOLET ...

Page 42: ...19 18 17 16 15 14 13 12 11 10 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 PIN NO VOLTAGE 50 63 62 61 60 59 58 57 56 55 54 53 52 51 IC1201 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 9 8 7 6 5 4 3 2 1 20 19 18 17 16 15 14 13 12 11 10 PIN NO VOLTAGE IC1202 1 1V 1 1V 3V 2V 1 5V 1 8V 0 8V 2 4V 1 2V 3 2V 1 2V 2 5V 1 3V 1 7...

Page 43: ...M indicates FM stereo 2 In the main section a tape is being played back 3 In the deck section a tape is being played back indicates the record state 4 In the power section a tape is being played back 5 In the CD section the CD is stopped Parts marked with are important for maintaining the safety of the set Be sure to replace these parts with specified ones for maintaining the safety and performanc...

Page 44: ... PLAY 4 5 Record Len SMOOTH OFF BW FULL CH1 0 000V CH2 0 000V Main 10K Hold Off MIN Trigger AUTO EDGE CH2 Zoom 100 CH3 CH4 0 000V Filter Offset 0 000 00s Detay 1997 08 04 13 35 24 T NORM 1M S s Stopped CH1 2V DC 10 1 CH3 200mV AC 10 1 CH4 5V DC 10 1 1ms div CH2 2V DC 10 1 T 1 4 3 2 TP1274 TP1218 TEMON TP1212 TCRS TP1217 TOTMON PIT PLAY 1 6 7 8 Record Len SMOOTH OFF BW FULL CH1 0 000V CH2 0 000V Ma...

Page 45: ...LL CH1 0 000V CH2 0 000V Main 5K Hold Off MIN Trigger NORMAL EDGE CH1 Zoom 50 CH3 0 000V CH4 0 000V Filter Offset 0 000 000 00s Detay 1997 08 04 10 12 30 T NORM 100M S s Stopped CH1 2V DC 10 1 5us div CH2 2V DC 10 1 T 1 2 LRCK ADDATA A DCONVERSION ANALOG REC NO SIGNAL 17 19 Record Len SMOOTH OFF BW FULL CH1 0 000V CH2 0 000V Main 2K Hold Off MIN Trigger NORMAL EDGE CH1 Zoom 20 CH3 0 000V CH4 0 000...

Page 46: ...ulated on the pickup lens playback is disturbed and indication of TOC content of tracks may be disabled Before adjusting check that the lens is clean If the lens is contaminated treat it as follows Turn off power supply impregnate the lens cleaning paper with a small quantity of isopropyl alcohol and gently wipe the lens with it with due care so that the lens is not damaged At this time do not tou...

Page 47: ...to L state Playback state cannot be set Is it impossible to set both high reflection disc and low reflection disc to playback state No Check as stated in item TEST mode check Yes Only the high reflection disc cannot be played back Yes Is 1 02V 0 3V high reflection disc applied to the pin 93 of IC1401 in the TEST mode where the high reflection disc has been inserted Only the low reflection disc can...

Page 48: ...isc replace it with recorded low reflection disc No Yes Check the position as stated in item lead in switch position measurement mode high reflection disc adjustment Yes When it has been confirmed that EEPROM value is normal in the TEST mode Does the playback time display advance Audio playback circuit Yes No Is audio output waveform observed on the pins 22 and 24 of CNS1901 Check connection betwe...

Page 49: ...2 and 73 of IC1201 Yes Yes Does the level of pins 3 and 26 39 of IC1401 and the pins 9 and 19 of CNS1101 in record state differ from that in playback state Check the IC1251 Q1251 to 1254 and CNS1252 Check periphery of IC1401 and CNS1101 Check waveform on the pins 9 and 10 of IC1101 and soldering joint Focus servo failure Is waveform on the pins 27 and 28 of IC1101 normal in the TEST mode focus gai...

Page 50: ...f IC1201 IC1601 IC1601 CNS1101 Slide servo failure Yes Check the waveform on the pins 22 and 23 of IC1201 check the peripheral parts and soldering joint Does the pickup move to external and internal periphery when the or button is pressed in the TEST mode No No Is there any change on the pins 22 and 23 of IC1201 when the or button is pressed Check the waveform on the pins 22 and 23 of IC1201 check...

Page 51: ...T1 K DATA Output MD serial interface transmission signal 22 P64 SIN1 MD DATA Input MD serial interface reception signal 23 P63 CNTR1 MD LO EJ Output MD loading power voltage selection signal 24 P62 CNTR0 Output Not used 25 P61 PWM Output Not used 26 P60 Output Not used 27 P47 T3OUT Output Not used 28 P46 T1OUT Output Not used 29 P45 INT1 2CR P IN Input Power failure detection 30 P44 INT4 P CNT Out...

Page 52: ...RDY1 SCLK1 SOUT1 SIN1 P63 P62 P61 P60 P47 P46 INT1 P44 KEY 2 KEY 3 INI JOG AD DIG SEL DAC MODE DAC CLK DAC DATA DFS0 DFS1 MD DSTB MD DSCK MD K DATA MD MD DATA MD LO EJ P IN USEG08 USEG07 USEG06 USEG05 USEG04 USEG03 USEG02 USEG01 USEG00 USEG25 USEG26 USEG27 USEG28 USEG29 USEG30 USEG31 USEG32 USEG33 USEG34 USEG35 UDIG15 UDIG14 UDIG13 UDIG12 UDIG11 UDIG10 UDIG09 UDIG08 UDIG07 UDIG06 SEG16 SEG17 SEG18...

Page 53: ...al 23 DATA Serial data input terminal 24 DVCC Digital section power terminal 25 FOUT Servo signal amp tracking servo system output terminal 26 EOUT Servo signal amp tracking servo system output terminal 27 BOUT Servo signal amp focus servo system output terminal 28 AOUT Servo signal amp focus servo system output terminal 29 TCGO Track cross detection signal amp output terminal for groove 30 WBO Co...

Page 54: ...SB 31 22KI Power supply for DRAM interface 32 22KO Output Address output to external D RAM ADR4 33 ADLPFO Output Address output to external D RAM ADR5 34 NC Output Address output to external D RAM ADR6 35 ADIPO Output Address output to external D RAM ADR7 36 ADIPI Output Address output to external D RAM ADR8 37 ADAGC Output Data output enable signal output to external D RAM 38 ADAGI Digital GND 39...

Page 55: ...us error signal monitor output 76 TOTMON Output Total signal monitor output 77 TEMON Output Tracking error signal monitor output 78 SBCK Input DIN subcode read clock EIAJ CP 309 Format 79 SBO Output DIN subcode serial data EIAJ CP 309 Format 80 SBSY Output DIN subcode block sync signal EIAJ CP 309 Format 81 SFSY Output DIN subcode frame sync signal EIAJ CP 309 Format 82 FOK Output Focus OK detecti...

Page 56: ...l output 28 P72 TA1OUT Output LD loading motor control output 29 P71 TA0IN Input CIN track count signal input 30 P70 TA0OUT Input INN SW inner SW detection input 31 P67 TXD1 Output R DATA 32 P66 RXD1 Output R LATCH 33 P65 CLK1 Output R CLK 34 P64 CTS1 RTS1 Output DSTB system controller communication enable and communication beingexecuted CTS0 CLKS1 35 P63 TXD0 Output MD DATA MD Data Output 36 P62 ...

Page 57: ...S0 output 77 P13 D11 Output DFS1 output 78 P12 D10 Output DIG EX output for CK 79 P11 D9 Output DIG CD output for CK 80 P10 D8 Output XRST system reset output 81 P07 D7 Output AD MUTE output for CK 82 P06 D6 Output EMPHA output for CK 83 P05 D5 Output DA MUTE output for CK 84 P04 D4 Output MUTE output 85 P03 D3 Output DOUTM output for CK 86 P02 D2 Input TEST2 special mode selection 2 87 P01 D1 Inp...

Page 58: ... 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 1 2 3 4 5 6 7 8 9 10111213141516171819202122232425 75747372717069686766656463626160595857565554535251 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 TOTMON TEMON SBCK SBO SBSY SFSY FOK SENSE COUT MCCK DINTX VDD1 DGND RSTX SYD0 SYD1 SYD2 SYD3 SYD4 SYD5 SYD6 SYD7 SYWRX SYRDX SYRS EFMO PLCK ACRCER...

Page 59: ...T Semiconductor type VC MF Cylindrical type without lead wire VC MN Cylindrical type without lead wire VC TV Square type without lead wire VC TQ Square type without lead wire VC CY Square type without lead wire VC CZ Square type without lead wire VC J The 13th character represents capacity difference J 5 K 10 M 20 N 30 C 0 25 pF D 0 5 pF Z 80 20 If there are no indications for the electrolytic cap...

Page 60: ...e L1101 VPBNN100K0000 J AC 10 µH L1102 VPBNNR47K0000 J AC 0 47 µH L1201 VPBNNR47K0000 J AC 0 47 µH L1203 VPBNN4R7K0000 J AC 4 7 µH L1251 VP NM470K0000 J AC 47 µH L1601 RCILZ0016AWZZ J AD 1 µH L1950 RCILZ0016AWZZ J AD 1 µH VARIABLE RESISTORS VR901 RVR B0016AWZZ J AH 5 kohms B Volume AUX Volume VR981 RVR C0002AWZZ J AH 1 kohm C Volume Headphone Volume VIBRATORS X901 RCRM 0012AWZZ J AF Ceramic 4 19 M...

Page 61: ...J AA 1000 pF 50V C1990 VCKYTV0JB105K J AD 1 µF 6 3V C1991 RC KZ0002AWZZ J AE 10 µF 10V C1992 VCKYCY1EF104Z J AA 0 1 µF 25V JC171 VCCCTV1HH220J J AA 22 pF CH 50V JC196 VCCCTV1HH220J J AA 22 pF CH 50V RESISTORS VRS TV2AB000J J AA 0 ohm Jumper 1 25 2mm Green J1405 VRS CY1JB103J J AA 10 kohm 1 16W LR190 VRS TV2AB220J J AA 22 ohms 1 10W R103 104 VRD ST2CD102J J AA 1 kohm 1 6W R105 106 VRD ST2CD473J J A...

Page 62: ...D J AA 30 kohms 1 16W R1611 VRS CY1JB123D J AA 12 kohms 1 16W R1612 VRS CY1JB563J J AA 56 kohms 1 16W R1613 VRS CY1JB273J J AA 27 kohms 1 16W R1614 VRS CY1JB183D J AA 18 kohms 1 16W R1617 VRS CY1JB473J J AA 47 kohms 1 16W R1650 VRS CY1JB103J J AA 10 kohm 1 16W R1651 VRS CY1JB104J J AA 100 kohm 1 16W R1652 VRS CY1JB103J J AA 10 kohm 1 16W R1653 VRS CY1JB104J J AA 100 kohm 1 16W R1654 VRS CY1JB682J ...

Page 63: ...41 RCTRH8173AF10 J Pickup Unit 42 QCNWN6715AFM1 J AM MD Flat Cable 24Pin 45 PSHEP0024AWZZ J AC Sheet Head 46 MLEVP0078AWZZ J AC Arm A 47 MLEVP0079AWZZ J AC Arm B 48 LANGF0036AWZZ J AC Bracket Cartridge 49 MSPRT0020AWFJ J AB Spring Arm 50 PSHEP0026AWZZ J AC Sheet Head Lead Wire 51 LANGZ0020AWFW J AM Bracket Protect 601 LX BZ0030AWZZ J AB Screw ø1 7 9 5mm 602 LX BZ0031AWZZ J AB Screw ø1 7 7 5mm 603 ...

Page 64: ...Main OTHER SERVICE PARTS QCNWK0059AFZZ J AF Extension Cable 2Pin QCNWK0107AFZZ J AH Extension Cable 6Pin QCNWK0108AFZZ J AL Extension Flat Cable 28Pin QCNWK0109AFZZ J AH Extension Flat Cable 5Pin RRCDT0101AFZZ J CB Test Disc Low Reflection RRCDT0103AFZZ J BK Head Adiusting Transparend Disc RUNTK0457AFZZ J Extension PWB UDSKM0001AFZZ J AZ Recording Mini Disc 5 ...

Page 65: ... 32 15 7 603x2 603x2 14 SW 1952 SW1956 SW1955 SW1954 SW1953 31 23 601 601 601 20 PWB D PWB C 16 608 12 10 11 18 609 609 29 25 30 13 21 A 9 22 610 610 5 608 40 41 33 19 604 611 611 612x4 607 607 607 38 38 37 607 37 42 CNW301 CNS1252 CFW1901 A1 A2 B1 B2 A1 A2 B1 B2 47 49 613 613 46 50 601 605 17 6 1 611 611 51 26 8 45 48 A ...

Page 66: ...15 220 609x4 603 213 603 605x4 608x2 607x2 227x2 226x4 216 217 219 221x2 609x2 222x2 609x2 610x3 218 604x3 606 602 x10 PWB B2 PWB B1 201 2 208 209 207 203 206 Washer with SW901 204 205x2 PWB B3 601 211 602x5 606x3 PWB A 225 611 201 1 201 210 FL901 212 214 612 228 609 224 229 610 610 606 Nut with SW901 ...

Page 67: ...KP0056AWZZ Packing Case SPAKC0596AWZZ Polyethylene Bag Pin Cord 92LBAG667B Battery Pin Cord Pad Bottom SPAKZ0371AWZZ Pad Top SPAKZ0363AWZZ Packing Add Left Right SPAKA0157AWZZ Remote Control Operation Manual Quick Guide Polyethylene Bag Accessories SSAKH0025AWZZ Not Replacement Item ...

Page 68: ...etrieval system or transmitted in any from or by any means electronic mechanical photocopying recording or otherwise without prior written permission of the publisher A9801 1770NS HA M SC SHARP CORPORATION Audio Visual Systems Group Quality Reliability Control Center Higashihiroshima Hiroshima 739 01 Japan Printed in Japan ...

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