Sharp MD-MT270HS/BK Скачать руководство пользователя страница 24

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– 24 –

MD-MT270H

• The numbers

are waveform numbers shown in page 37.

• NOTES ON SCHEMATIC DIAGRAM can be found on page 22.

0.1

100K

15K

CK402

4 3

100K

10K

LV8221T

100

4 3

1 2

1 2 3

PWMCLK

DCNT1

SPDRF

SPDRR

SLDRF

OPICGA

DISC

SGAIN

DSPSCK

DSPSTB

DSPDAT

RDATA

LDVAR

AUSCLK

INPGIN

INPGCK

VCC2R5V

EFMOX

EFMO

SPIN

VCC4

SPIN

DCNT1

DCNT2

VCC_HEAD

PLVBAT

PLVDCI

SYD1

SYD2

SYD3

SYD4

SYD5

SYD6

SYD7

SYWR

SYRD

SYRS

SYD0

HKEY1

RKEY

TEMP

STOP

LDCNT2

LDCNT1

AUDATA

BEEP

CIN

RCAULT

RCPCNT

PBMUTE

DISCPR

PBAULT

DCEXT

PCNT1

PCNT2

LDON

DCNT1

DCNT2

PCNT3

DISCPR

RPLAY

HREC

HPLAY

DINT

XRT

FOK

SENSE

SLCNT3

SLCNT2

SLCNT1

TRDRF

TRDRR

FODRF

FODRR

SLCNT3

SLCNT2

SLCNT1

HDON

RADAT

P5_3

VSS

SDA

SCL

VCC

P7_1

LSIVAR

MCMON

TEMP

AVCC

HKEY2

Vref

HKEY1

RKEY

PLVBAT

PLVDCI

P10_6

P10_7

SYWR

PCNT1

ARQK

STOP

ARQD

PCNT2

LDON

P2_2

PCNT3

DCNT2

MCNT

MSENSE

CHGCNT

VSS

EJSW

VCC

DCNT1

CKSTP

FOK

P3_4

TEST1

RFPCNT

DISC

SENSE

INPGCK

INPGI

MCPGI

PBLAT

DSPSCK

DSPSTB

DSPDAT

P7_0

SPIN

CHGON

BUZOUT

PBOPON

HDON

RPLAY

RCPCNT

P8_1

REC

DINT

NMI

VCC

XTAL

VSS

RESET

EXTAL

SYCPW

VSS

CIN

EPRT

PLAY

DISCP

OPICGA

EEPD

DHLAT

TEST0

RACLK

RCLAT

P6_1

PCILD

RMDAT

PCLK

SGAIN

LDVAR

JPNP

VSS

SYRS

SYRD

SYD7

SYD6

SYD5

SYD4

SYD3

SYD2

SYD1

SYD0

XRST

EEPK

EPCS

AVSS

SLCNT1

SLCNT2

SLCNT3

T–

T+

F+

F–

TGND

UOUT

COM

VOUT

WOUT

SCOM

PGND4

VS4

OUT4

SWO

SWCO

SVCO

SVO

SUO

SUCO

SLGND

SLVS

VCC

CPC2

CPC1

CP2

CP1

MUTE2

MUTE

IN2F

IN2R

IN1F

IN1R

VS1

OUT1F

OUT1R

PGND1

VS2

OUT2F

OUT2R

PGND2

PGND3

OUT3R

OUT3F

VS3

IN3R

IN3F

CLK

PWM

BRK

IN4

MUTE3

S/S

MODE1

VCOIN

RMAX

VCO

SGND

FIL

COMIN

SPVS

SPGND

–

COM

SPINDLE MOTOR

SLED MOTOR

OPIC

4MHz

LID OPEN

DISC

PROTECT

VCC

GND

EJECT

IX0561AW

74ACT08FT

MCH6616

SBE803

CPH5608

220K

0.0022

10K

0.0022

100K

33K

0.0022

56K

0.0033

0.47

330K

0.22

22K

100K

0.1

100K

22K

0.1

330K

OPTICAL PICKUP (1)

MAGNETIC

HEAD(16)

LIFT MOTOR

MECHANISM

FLEXIBLE PWB (15)

SYSTEM

MICROCOMPUTER

PWM/MOTOR

DRIVER

HEAD

DRIVER

HEAD

DRIVER

HEAD DRIVER

33P(CH)

IC401

IC402

R413

SW401

IC351

IC353

D351

IC354

CN601

L605

C605

SW403

R464

C454

R406

R405

SW601

C404

R404

R403

R606

C610

C614

R602

C620

C621

R603

R604

C613

C611

C612

C615

L604

L603

L601

L602

R467

R461

C401

C652

C602

C601

C604

C603

C351

R422

R423

R425

C130

C353

R351

R352

R444

R411

R412

XL401

R463

R465

R402

R417

C357

IC601

M902

M901

M903

CK401

TP406

TP441

TP401

TP402

CK405

TP665

TP602

TP610

TP661

TP659

TP658

TP657

TP656

TP660

TP655

TP654

TP653

TP652

TP651

TP351

TP352

CK410

TP411

TP411A

TP400

CK418

TP417

CK417

CK407

TP415

CK416

TP416

TP408

TP409

TP407

TP410

Figure 24 SCHEMATIC DIAGRAM (1/8)

Serial No.21100001~21102500

Содержание MD-MT270HS/BK

Страница 1: ...REINSTALLING THE MAIN PARTS 6 ADJUSTMENT 7 MD ERROR MESSAGE DISPLAY CONTENT LIST 21 NOTES ON SCHEMATIC DIAGRAM 22 TYPES OF TRANSISTOR AND DIODE 22 BLOCK DIAGRAM 23 SCHEMATIC DIAGRAM 24 WIRING SIDE OF P W BOARD 32 VOLTAGE 36 WAVEFORMS OF MD CIRCUIT 37 TROUBLESHOOTING 38 FUNCTION TABLE OF IC 41 PARTS GUIDE EXPLODED VIEW PACKING OF METHOD FOR U K ONLY CONTENTS In the interests of user safety the set ...

Страница 2: ...thout a compact disc and the Pickup is on a position outer than the lead in position the Laser will light for several seconds to detect a disc Do not look into the Pickup Lens 2 The Laser Power Output of the Pickup inside the unit and replacement service parts have already been adjusted prior to shipping 3 No adjustment to the Laser Power should be attempted when replacing or servicing the Pickup ...

Страница 3: ...ting time when using an alkaline battery may be different depending on the type and manufacturer of the battery and on the operating temperature Type Portable MiniDisc recorder Signal readout Non contact 3 beam semicon ductor laser pickup Audio channels Stereo 2 channels monaural 1 channel Frequency response 20 20 000 Hz 3 dB Rotation speed Approx 400 1 800 rpm CLV Error correction ACIRC Advanced ...

Страница 4: ...nput Socket 12 Fast Forward Fast Reverse Recording Level Menu Select Name Select Buttons Display panel 1 Level Meter 2 Random Indicator 3 Repeat Indicator 4 Long play Recording Mode Indicator 5 Monaural Mode Indicator 6 Battery Indicator 7 Play Indicator 8 Pause Indicator 9 Disc Name Indicator 10 Record Indicator 11 Synchro Recording Indicator 12 Character Time Information Indicator 13 TOC Indicat...

Страница 5: ...xible PWB After removing the flexible PWB 1 for the optical pickup from the connector do not touch directly the front end of flexible PWB with your hand so as to prevent damage of optical pickup by static electricity B1 x2 ø1 4x2 5mm C1 x2 ø1 4x2 5mm C1 x1 ø1 4x2 5mm C1 x1 ø1 4x2 5mm A3 x1 C2 x1 Bottom Cabinet Main PWB C2 x1 Pull Pull Pull D2 x1 ø1 4x1 5mm Bracket Bracket Mechanism Unit D1 x2 ø1 4...

Страница 6: ...noise is caused How to remove the sled motor See Fig 6 3 1 Remove the stop washer C1 x 1 pc and remove the drive gear C2 x 1 pc 2 Remove the solder joints C3 x 3 of flexible PWB 3 Remove the screws C4 x 2 pcs and remove the sled motor Note Take care so that the motor gear is not damaged If the gear is damaged noise is caused How to remove the spindle motor See Fig 6 2 1 Remove the solder joints B1...

Страница 7: ...inuous record from the specified address is performed Change of record laser output servo gain is also changed according to laser output The temperature correction is performed only when servo start is performed but the posture correction is not performed during continuous recording 5 MANUAL 1 Mode Temperature is displayed Updating in real time Seeing the displayed adjustment value perform prelimi...

Страница 8: ...out of range focus ON failure and adjustment error When the PLAY button is pressed while ADJ OK is displayed AUTO2 is executed 2 AUTO2 Mode When the STOP button is pressed while the AUTO2 menu appears or during automatic adjustment the mode changes to the TEST mode stop state At this time the adjustment value is not output Adjustment NG Adjustment item out of range and adjust ment error When the P...

Страница 9: ...e error data indication menu appears the error data is initialized C L E A R _ Error Code Explanation of error history code 13h Excessive number of retry to draw servo during its adjustment 16h COUT detection time over during servo adjustment 17h The level of input signal from the RF amplifier is out of the allowable range 1Fh Cannot clear the factor of ENDEC DINT 21h Cannot focus on the disc 22h ...

Страница 10: ...utton and PLAY button Continue to hold down the PLAY button to release the VOL button and press the VOL button 3 Start the EEPROM mode Temp menu Button operation in order of MENU FAST REVERSE x 3 times PLAY PLAY in the test mode STOP state TM is displayed Temperature code Temperature reference 4 Once press FAST FORWARD and determine the displayed microcomputer TEMP input AD value TPin is displayed...

Страница 11: ... H S R m _ 9 A H S R o _ 7 B H S B R _ 6 0 H O S L _ 1 4 H P J G _ 4 6 H Item display Set values Tracking setting Item display Set values T G 1 _ 1 7 H T G 2 _ 4 0 H T F 0 _ 1 0 H T F 1 _ 7 0 H T F 2 _ E 0 H T f 0 _ 1 0 H T f 1 _ 4 0 H T f 2 _ E 4 H T F S _ 0 0 H T B o _ 2 0 H T B t _ 3 4 H T K o _ 2 0 H T K t _ 3 2 H T K T _ 1 6 H T D o _ 6 7 H T D t _ 0 E H T D T _ 1 6 H S C o _ 0 0 H S C t _ 3 ...

Страница 12: ... 2 H M F P _ 4 B H S P M _ 0 0 H M S L _ 0 0 H U S 0 _ 0 0 H U S 1 _ 0 0 H U S 2 _ 0 0 H w E 0 p _ 5 4 H w E 2 _ 4 6 H w E 3 p _ 0 5 H w E 3 g _ 0 0 H w E A _ 1 6 H w E F _ 0 0 H K 1 0 _ 0 F H K 1 1 _ 8 E H ADJ SET setting Item display Set values C O K _ 2 8 H F A T _ C 0 H T A T _ 3 E H C A T _ 4 0 H F A B _ 6 4 H Bass setting Item display Set values B S 0 _ 0 2 H B S 1 _ 0 1 H B S 2 _ 1 2 H B S ...

Страница 13: ...l adjustment menu M A N U 1 ATT manual adjustment menu M A N U 2 Error history display menu E D A T A Test mode normal playback menu N O R M A L E E P R O M A U T O 2 Preautomatic Adjustment menu Preadjustment error adjustment value output During preadjustment adjustment Adjustment error Normal end Preadjustment normal end adjustment value output During ATT automatic adjustment PLAY PLAY A U T O 1...

Страница 14: ...ress changes as follows when the MENU button is pressed 0 0 3 2 H initial value 0 3 C 0 H 0 7 0 0 H 0 8 A 0 H A d 0 0 3 2 A d 0 3 C 0 A d 0 7 0 0 MENU MENU MENU MENU A d 0 8 A 0 In the start address setting state the start address change digit changes when the REC button is pressed 1st digit initial value 2nd digit 3rd digit A d 0 0 3 2 A d 0 0 3 2 REC REC REC A d 0 0 3 2 In the continuous playbac...

Страница 15: ... P Continuous record playback from any address A d 0 0 3 2 0 0 3 2 H initial value 0 3 C 0 H 0 7 0 0 H 0 8 A 0 H A d 0 3 c 0 A d 0 7 0 0 MENU MENU MENU MENU A d 0 8 A 0 In the start address setting state the start address change digit changes when the REC button is pressed A d 0 0 3 2 1st digit initial value 2nd digit 3rd digit A d 0 0 3 2 A d 0 0 3 2 REC REC REC A d 0 9 5 0 TEST mode normal playb...

Страница 16: ...the specific setting menu is set Error history display menu Error history 0 display Error code Error history 1 display Error code Error history 2 display Error code Error history 3 display Error code Error history 4 display Error code Error history 5 display Error code Error history 6 display Error code Error history 7 display Error code Error history 8 display Error code Error history 9 display E...

Страница 17: ...ORWARD FAST REVERSE P L E FAST FORWARD FAST REVERSE FAST FORWARD FAST REVERSE Spin setting menu PLAY S p i n Spin Setting S P G S P i FAST FORWARD FAST REVERSE S P m FAST FORWARD FAST REVERSE S P o FAST FORWARD FAST REVERSE P G M FAST FORWARD FAST REVERSE S P 1 FAST FORWARD FAST REVERSE S P 2 FAST FORWARD FAST REVERSE S P 3 FAST FORWARD FAST REVERSE S P 4 FAST FORWARD FAST REVERSE S P 5 FAST FORWA...

Страница 18: ... 1 T G 2 FAST FORWARD FAST REVERSE T F 0 FAST FORWARD FAST REVERSE T F 1 FAST FORWARD FAST REVERSE T F 2 FAST FORWARD FAST REVERSE T f 0 FAST FORWARD FAST REVERSE T f 1 FAST FORWARD FAST REVERSE T f 2 FAST FORWARD FAST REVERSE T F S FAST FORWARD FAST REVERSE T B t FAST FORWARD FAST REVERSE When the STOP button is pressed in specific menu the TEST MODE STOP state is set When the MENU button operati...

Страница 19: ...ecific state the menu changes to TEMP SETTING menu In the specific setting display state the setting change digit changes when the REC button is pressed 1st digit initial value 2nd digit REC REC In the specific state the setting changes in the range of 0h to Fh when the VOL button is pressed When the REC button is pressed in each state the set digit is changed F A B FAST FORWARD FAST REVERSE Bass ...

Страница 20: ...FORWARD FAST REVERSE R 2 1 FAST FORWARD FAST REVERSE R 4 0 FAST FORWARD FAST REVERSE R 4 1 FAST FORWARD FAST REVERSE M F P FAST FORWARD FAST REVERSE S P M FAST FORWARD FAST REVERSE M S L FAST FORWARD FAST REVERSE U S 0 FAST FORWARD FAST REVERSE U S 1 FAST FORWARD FAST REVERSE U S 2 FAST FORWARD FAST REVERSE w E 0 p FAST FORWARD FAST REVERSE FAST FORWARD FAST REVERSE w E 2 FAST FORWARD FAST REVERSE...

Страница 21: ... write test Er MD80 EEPROM readout Check sum error TOC FORM Abnormal data DISC detection L UTOC SELECTOR is Loop indicates the detailed factor a_ Address abnormal t_ FTNO LTNO NAME FULL The number of characters for names exceeds the specification limit OPEN The disc compartment is open Open lid is detected while the system is running Display content Error content Error code Remarks f Focus error r...

Страница 22: ...tage in each section is the one measured by Digital Multimeter between such a section and the chas sis with no signal given 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 performance of the set HRB0103 B 2SB709 A 2SD601 AR 3LN01 S DTC123 TKA MCH3409 UN5213 TOP VIEW TOP VIEW TOP VIEW F05J2L TOP ...

Страница 23: ...CAL PICUP LASER OPIC PICK 16M BIT D RAM IX2960AF IC202 LCD UNIT OPTICAL LINE IN J701 AUDIO AMP IR3R59N IC703 HEADPHONES KEY SWITCH SW451 459 J703A AD CONVERTER REC AMP AK5354 IC501 PWM MOTOR DRIVER LV8221T IC601 EEPROM 24WC05UI2 IC402 SYSTEM MICROCOMPUTER IC401 2 3V REGULATOR 2872F23 IC771 4 5V REGULATOR 2872F45 IC873 1 1A F841 D842 D843 IC251 FCH8601 N CH MOS FET IC809 XP04313 IC802 XP04501 IC803...

Страница 24: ...FPCNT PR DISC SENSE INPGCK INPGI MCPGI PBLAT DSPSCK DSPSTB DSPDAT P7_0 SPIN CHGON BUZOUT PBOPON HDON RPLAY RCPCNT P8_1 REC DINT NMI VCC XTAL VSS RESET EXTAL SYCPW VSS CIN EPRT PLAY DISCP OPICGA EEPD DHLAT TEST0 RACLK RCLAT P6_1 PCILD RMDAT PCLK SGAIN LDVAR JPNP VSS SYRS SYRD SYD7 SYD6 SYD5 SYD4 SYD3 SYD2 SYD1 SYD0 XRST EEPK EPCS AVSS SLCNT1 SLCNT2 SLCNT3 T T F F TGND UOUT COM VOUT WOUT SCOM PGND4 ...

Страница 25: ...1 EFMOX MCCK PWMCK PLLCK AGND3 PLLBVC EXTC AVCC3 AGND1 AVCC1 EFMI TEST3 EFMO SYRS RAA11 VREF TCRS RAA3 RAA2 RAA1 RAA0 RAA4 RAA5 RAA6 RAA7 RAA8 RAOEX RACASX RAD2 RAD3 VDD2 DGND RAA9 RARASX RAWEX RAD1 RAD0 AVCC2 DGND DGND BIN EIN FIN AIN TCG SPDRR SPDRF SLDRR SLDRF TRDRR TRDRF X176KO TEST2 FODRF FODRR TEST0 TEST1 WBI VBAT SYRDX SYWRX SYSD7 SYSD6 SYSD5 SYSD4 SYSD3 SYSD2 SYSD1 SYSD0 RSTX DINTX COUT SE...

Страница 26: ...3 1K 10K 2 2 MA2SD19 0 1 1 HRB0103B HRB0103B 0 1 0 1 1 1 0 01 33 6 3V 0 22 0 1 100K 0 4A DC60V 1 DG1H3 47µH 1 0 1 560K 22K 330K 330K 3 3M 120K 330K 180K 0 33 180K 33K 0 1 1 DG1H3 DG1H3 D1FH3 MCH3409 10µH 10 10V 1 1 5K 12K 22K UN5213 68K 39K 39K 22K 2SJ645 39K 100K 0 1 12K 1K MA8043M MA2SD19 1 1A 1 1 F05J2L 1 1 68K 2SD601 A 27K 47 6 3V 22K 22K 0 1 DC IN 5V POWER TRANSISTOR POWER SELECT CHARGE DRIVE...

Страница 27: ... VOL BASS A0 A1 A2 VSS SDA SCL WP VCC AC L L R R PDN CSN CCLK CDTI BCLK VD VA RIN2 LIN2 RIN1 LIN1 R CH L CH OUT VDD VSS I O1 I O2 WE RAS A9 A0 A1 A2 A3 VCC A4 A5 A6 A7 A8 OE CAS I O3 I O4 GND A10 GND VCC VCOM VSS MCLK SDTO LRCK L R GND VCC GND Vout R CH L CH L CH R CH LCD UNIT 218 LCD DRIVER LCD 1 0 S G Z Z S V S 0 G 1 V V Z 0 G 1 ATT LIN LLPFO L L R R RLPFO RIN LHPVEE LHPVCC DAT CLK LAT RHPVEE RH...

Страница 28: ...4 TEST1 RFPCNT PR DISC SENSE INPGCK INPGI MCPGI PBLAT DSPSCK DSPSTB DSPDAT P7_0 SPIN CHGON BUZOUT PBOPON HDON RPLAY RCPCNT P8_1 REC DINT NMI VCC XTAL VSS RESET EXTAL SYCPW VSS CIN EPRT PLAY DISCP OPICGA EEPD DHLAT TEST0 RACLK RCLAT P6_1 PCILD RMDAT PCLK SGAIN LDVAR JPNP VSS SYRS SYRD SYD7 SYD6 SYD5 SYD4 SYD3 SYD2 SYD1 SYD0 XRST EEPK EPCS AVSS SLCNT1 SLCNT2 SLCNT3 T T F F TGND UOUT COM VOUT WOUT SC...

Страница 29: ...PLLBVC EXTC AVCC3 AGND1 AVCC1 EFMI TEST3 EFMO SYRS RAA11 VREF TCRS RAA3 RAA2 RAA1 RAA0 RAA4 RAA5 RAA6 RAA7 RAA8 RAOEX RACASX RAD2 RAD3 VDD2 DGND RAA9 RARASX RAWEX RAD1 RAD0 AVCC2 DGND DGND BIN EIN FIN AIN TCG SPDRR SPDRF SLDRR SLDRF TRDRR TRDRF X176KO TEST2 FODRF FODRR TEST0 TEST1 WBI VBAT SYRDX SYWRX SYSD7 SYSD6 SYSD5 SYSD4 SYSD3 SYSD2 SYSD1 SYSD0 RSTX DINTX COUT SENSE TEMON TOTMON TEST DIN DOUT ...

Страница 30: ...K 10K 2 2 MA2SD19 0 1 1 HRB0103B HRB0103B 0 1 0 1 1 1 0 01 0 22 0 1 100K 0 4A DC60V 1 DG1H3 1 0 1 560K 22K 47P CH 330K 330K 3 3M 120K 33P CH 330K 180K 0 33 180K 33K 0 1 1 DG1H3 DG1H3 D1FH3 220 4V MCH3409 10µH 22 6 3V 1 1 5K 12K 22K 220 4V UN5213 68K 39K 39K 22K 2SJ645 39K 100K 0 1 12K 1K MA8043M MA2SD19 1 1A 1 1 F05J2L 100MHz 1 1 68K 2SD601 A 27K 22K 22K 0 1 DC IN 5V POWER TRANSISTOR POWER SELECT ...

Страница 31: ... VSS I O1 I O2 WE RAS A9 A0 A1 A2 A3 VCC A4 A5 A6 A7 A8 OE CAS I O3 I O4 GND A10 GND VCC VCOM VSS MCLK SDTO LRCK L R GND VCC GND Vout R CH L CH L CH R CH LCD UNIT 218 LCD DRIVER LCD ATT LIN LLPFO L L R R RLPFO RIN LHPVEE LHPVCC DAT CLK LAT RHPVEE RHPVCC HP BEEP LPF ATT AMPuGAIN SEL AMPuGAIN SEL LOGIC BIAS LPF AK5354 S 80820CLN RESET 24WC05UI2 1K IC402 OPTICAL LINE IN HEADPHONES 16M BIT D RAM EEPRO...

Страница 32: ...3 R715 R716 R713 IC242 R714 IC241 C241 R771 1 5 10 15 20 25 30 32 33 35 40 45 50 55 60 65 64 65 70 75 80 85 90 95 96 97 100 105 110 115 120 125 0 4A DC60V 128 1 5 10 12 13 15 20 24 5 1 1 1 3 6 4 2 3 5 7 10 8 14 5 60 1 3 4 6 55 64 10 15 16 17 20 25 30 32 33 35 40 45 48 49 50 1 10 12 5 1 15 13 24 20 5 10 15 5 1 1 1 1 3 4 6 3 4 6 3 4 6 8 9 8 9 16 16 1 10 15 1 3 4 5 1 1 3 4 6 4 8 5 1 5 4 3 5 1 8 16 10...

Страница 33: ...5 110 115 120 125 128 1 5 10 12 13 15 20 24 5 1 1 1 3 6 4 2 3 5 7 10 8 14 5 60 1 3 4 6 55 64 10 15 16 17 20 25 30 32 33 35 40 45 48 49 50 1 10 12 5 1 15 13 24 20 1 3 4 5 1 1 3 4 6 4 8 5 1 5 4 3 5 1 8 16 10 15 1 4 5 8 9 MAIN PWB A BOTTOM VIEW OPTICAL LINE IN PHONES J701 J703A J801 DC IN 5V BATTERY BATTERY TERMINAL 217 BATTERY TERMINAL 212 LID OPEN DISC PROTECT C D 0 4A DC60V 1 1A X0039AW To Serial ...

Страница 34: ...9 IC203 R220 R218 R204 L100 C208 L101 R161 C201 C100 C203 C165 C103 C102 R135 R136 CN101 R133 R131 R137 R134 R132 R138 C114 R111 C111 C112 IC101 SW456 C107 C106 L171 C108 R112 C109 C131 C171 C110 R140 R139 C113 C132 C133 5 10 12 13 15 20 25 24 25 30 35 36 37 40 45 48 1 5 10 15 20 25 26 30 35 40 45 50 1 1 7 11 51 55 60 65 70 75 76 80 85 90 95 100 1 4 5 8 1 2 3 4 1 3 5 4 1 2 4 3 1 1 5 10 15 20 22 3 ...

Страница 35: ...NIT 218 OPTICAL PICKUP 1 P34 3 D TO MAIN PWB P34 3 F TO MAIN PWB CN482 P34 2 D TO MAIN PWB CN601 CN101 SPINDLE MOTOR LIFT MOTOR MECHANISM FLEXIBLE PWB 15 MAGNETIC HEAD 16 SLED MOTOR M901 M903 M902 Figure 35 WIRING SIDE OF P W BOARD 4 4 ...

Страница 36: ... 41 42 43 44 45 46 47 48 39 1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 52 53 55 56 57 58 59 60 61 62 63 64 54 49 50 51 3 1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 3 1 20V 2 53V 1 27V 0V 2 53V 0V 1 28V 1 28V 1 28V 1 28V 1 28V 1 28V 1 28V 1 56V 0V 0V 0V 0V 1 27V 0V 0V 0V 0V 0V 0V 0V 2 53V 2 53V 0V 2 42V 0V 1 96V 1 25V 1 25V 1 2...

Страница 37: ...thiing OFF BW FULL CH1 0 000V CH2 0 00V Main 1K Zoom 1K CH3 0 00V CH4 0 00V Trigger Mode AUTO Type EDGE CH1 Detay 0 0ns Hold OFF MINIMUM T TP201 EFMMON Stopped CH1 2V DC 10 1 500ms div 500ms div 1 MORM 200MS s 9 1994 12 15 08 57 26 Filter Offset Record Length Smoothiing OFF BW FULL CH1 0 00V CH2 0 00V Main 10K Zoom 10K CH3 0 000V CH4 0 0V Trigger Mode NORMAL Type EDGE CH1 Detay 0 0ns Hold OFF MINI...

Страница 38: ...ned below Turn the power off Gently clean the lens with a lens cleaning tissue and a small amount of lens cleaner on the market Do not touch the lens with the bare hand Is the power supply turned on when the main unit button is pressed No Perform the check stated in item Power is not turned on when the PLAY button is pressed Perform the check stated in item Abnormal display No Yes Does the display...

Страница 39: ...t Is PWM signal output from IC501 pins 68 69 72 73 Check headphones jack and periphery of headphone Although the playback time display is acting no sound is given during playback in the normal mode The spindle motor fails to run Does the head move No Does the waveform appear on the IC201 pins 26 and 27 after TEST mode AUTO2 completion and in this state Check the IC201 periphery Does waveform appea...

Страница 40: ...of the pins 97 100 101 102 of IC201 No Check whether the audio signal line between IC501 and J701 is defective Check whether input waveform is observed on the pins 3 and 4 of IC501 Yes Check voltage of pins 89 and 90 of IC201 pins 17 18 20 and 21 of IC601 pins 8 and 9 of CN601 Check whether disc is record inhibited Does the RF waveform appear at TP201 when recording Playback is performed Check whe...

Страница 41: ...output 25 P7_3 CHGON Output Battery charge ON OFF control output 26 P7_2 TA1OUT Output Reserve 27 P7_1 TB5IN Output Reserve 28 P7_0 TA0OUT Output Reserve 29 P6_7 TXD1 DSPDAT Output Unit indication data output 30 P6_6 RXD1 DSPSTB Output Main unit display strobe output 31 P6_5 CLK1 DSPSCK Output Unit indication data clock output 32 P6_4 TEST0 Input Test mode setting input 0 33 P6_3 TXD0 RMDAT Output...

Страница 42: ...put DC IN detection 74 P1_4 _XRST Output System LSI hard reset output 75 P1_3 PCNT1 Output Main DC DC converter ON OFF control 76 P1_2 SYRS Output System LSI register selection output 77 P1_1 _SYRD Output System LSI read enable output 78 P1_0 _SYWR Output System LSI write enable output 79 P0_7 SYD7 Input Output System LSI parallel data bus 80 P0_6 SYD6 Input Output 81 P0_5 SYD5 Input Output 82 P0_...

Страница 43: ...ad raising lowering control output 1 See the separate table 2 89 EXPORT5 LDCNT2 Output Recording head raising lowering control output 2 See the separate table 2 105 EXPORT3 HDON Output Recording head current control output H Record electric current 106 EXPORT2 OPTCNT Output Optical digital input circuit control H Circuit operation ON 107 EXPORT0 DAPON Output D A converter operation control output ...

Страница 44: ...on with H level input 16 CLK Reference clock input terminal for logic operations Enter a frequency 32 times or 64 times as high as the spindle PWM frequency 17 IN3F H bridge 3 logic input terminal 18 IN3R 19 VS3 H bridge 3 power supply terminal The capacitor is connected to the GND terminal 20 OUT3F H bridge 3 forward output terminal 21 OUT3R H bridge 3 reverse output terminal 22 PGND3 H bridge 3 ...

Страница 45: ... thread U phase output terminal 52 SVO 3 phase thread V phase output terminal 53 SVCO Position detection comparator output terminal in the thread driver section 54 SWCO Position detection comparator output terminal in the thread driver section 55 SWO 3 phase thread W phase output terminal 56 OUT4 Half bridge output terminal 57 VS4 Power supply terminal for half bridge section The capacitor is conn...

Страница 46: ...ted 7 A10 Address input 8 11 A0 A3 Address input 12 Vcc Power supply 2 6V 13 GND Ground 0V 14 19 A4 A9 Address input 20 OE Output enable 21 CAS Column address strobe 22 I O3 Data input data output 23 I O4 Data input data output 24 GND Ground 0V IC202 RH iX2960AFZZ 16M Bit D RAM IX2960AF In this unit the terminal with asterisk mark is open terminal which is not connected to the outside ...

Страница 47: ...indrical 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 capacitors error is 20 Resistors ...

Страница 48: ...801 RCILZ0027AWZZ J AD 100 MHz Tip Impeder L841 RCILC0358AFZZ J AC 47 µH Choke L851 RCILC0026AWZZ J AE 10 µH L860 VPCBM101K0000 J AC 100 µH VIBRATORS XL201 RCRSC0028AFZZ J AH Crystal 33 8688 MHz XL401 RCRM 0050AWZZ J AE Ceramic Osillator 4 MHz CAPACITORS C100 VCSAFA0JJ106M J AD 10 µF 6 3V Electrolytic Tantalum C102 103 VCKYCY0JB105K J AC 1 µF 6 3V C106 VCKYCY0JB105K J AC 1 µF 6 3V C107 VCKYCZ1CB33...

Страница 49: ...S CY1JB104J J AA 100 kohm 1 16W R464 VRS CY1JB224J J AA 220 kohms 1 16W R465 VRS CY1JB104J J AA 100 kohm 1 16W R467 VRS CY1JB223J J AA 22 kohms 1 16W R481 VRS CY1JB333F J AA 33 kohms 1 16W R482 483 VRS CY1JB183F J AA 18 kohms 1 16W R501 504 VRS CY1JB123J J AA 12 kohms 1 16W R511 VRS CY1JB102J J AA 1 kohm 1 16W R602 VRS CY1JB563J J AA 56 kohms 1 16W R603 604 VRS CY1JB334J J AA 330 kohms 1 16W R606 ...

Страница 50: ...d Hong Kong 221 TLABN0234AW01 J AB Label Serial No S For Europe 221 TLABN0234AW02 J AB Label Serial No S For Sweden 221 TLABN0234AW03 J AB Label Serial No S For U K 221 TLABN0234AW04 J AB Label Serial No S For Korea 221 TLABN0234AW05 J AB Label Serial No S For Hong Kong 221 TLABN0234AW06 J AB Label Serial No S Except for Europe U K Korea Australia New Zealand Thailand Hong Kong 221 TLABN0234AW07 J...

Страница 51: ...MD MT270H A B C D E F G H 1 2 3 4 5 6 Figure 4 MD MECHANISM EXPLODED VIEW 4 M901 M903 M902 16 503x2 501 9 502 2 1 14 505 8 11 13 504 506x2 5 3 4 6 507 10 17 7 507 12 501x3 15 ...

Страница 52: ...A B C D E F G H 1 2 3 4 5 6 Figure 5 CABINET EXPLODED VIEW 5 MD MECHANISM 201 605 603 603 603x2 602x2 604 601 602x2 602 603x2 210 203 219 204 216 220 202 205 206 218 214 PWB A 212 217 221 211 215 208 209 207 213 ...

Страница 53: ...se K SPAKC1541AWZZ 4 Packing Case S SPAKC1551AWZZ 5 Space Pad SPAKZ0490AWZZ 6 Polyethylene Bag SSAKH0033AWZZ 7 Service Card TCADS0005AWZZ 8 Warranty Card TGANE0013AWZZ 9 Operation Manual TINSE0488AWZZ 10 Quick Guide TINSE0489AWZZ 12 Label Bar Code K TLABE0711AWZZ 12 Label Bar Code S TLABE0726AWZZ 14 Label Serial No TLABN0092AWZZ Setting position of switches and knobs UNIT HOLD ...

Страница 54: ...MD MT270H M E M O ...

Страница 55: ...MD MT270H M E M O ...

Страница 56: ...ima Hiroshima 739 0192 Japan SG EX COPYRIGHT 2002 BY SHARP CORPORATION ALL RIGHTS RESERVED No part of this publication may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without prior written permission of the publisher ...

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