Marantz MD-19 Service Manual Download Page 19 | Manualshive

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17

18

6. BLOCK DIAGRAM

256FS

DIGITAL IN

DIGITAL OUT

_RST_DA

DAC

PCM1716

24 BIT

ADC

AK5351
20 BIT

LINE OUT

LINE IN

BUFFER

NJM2068

BUFFER
NJM2068

BUFFER

H.D.A.M.

AUDIO

MUTE

BUFFER

NJM2068

DRIVER

NJM4556

AUDIO

MUTE

CD TEXT
DECODER

LC89170M

CLOCK

GEN.

SUB_Q

DAI

LC8904Q

MICRO

CONTROLLER

MB90573

11.2896M

512FS

512FS

SERIAL AUDIO I/O

MICRO

CONTROLLER

PD780204

F.T.D.

SERIAL COM.

KEY SW

ROTARY

ENCODER

SERIAL COM.

AD0-AD4/ENC 0,1

MUTE

DRIVE

POWER
ON/OFF

POWER

SUPPLY

+5VD
+5VM +5VH
+5VAD +5VDA
+12VA
-12VA

+3.3STB
+3.3BAK

-25V

+5VSTB

AC1
AC2

PO

WER ON

AC 11V
AC 7.3V
AC 23V
AC 4.3V

AMUTE

EMPH

PLUG IN OUT

IR SENSOR

SERIAL COM.

COAXIAL IN

OPTICAL IN 1

OPTICAL IN 2

COAXIAL OUT

OPTICAL OUT

REC VOL.

REC BALANCE

H.P. VOL.

H.P. OUT

AC

RS232C

R.C. I/O

BUFFER

R.C. IN/OUT

8.0M

32.768k

_RST_AD

REMOTE

BUS

I/O

_MUTE_SYS

ENDEC

&

ATRAC

SERVO

DRIVER

HF AMP

MD

CONTROL

U-COM

MD UNIT KMK-260AAA

SLED

MOTOR

SPINDLE

MOTOR

PICK

UP

FOCUS

TRACK

+3.3VSTB,+3VBAK

+5VM,+5VH,+5VD

HEAD

DRIVE

BUFFER
NJM2068

ANAIN +

ANAIN -

_RST_DAI_TXT

_RST_FL

256FS

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Summary of Contents for MD-19

Page 1: ...260 ELECTRICAL ADJUSTMENTS 6 4 WAVEFORM FLAG NO 13 5 MICROPROCESSOR AND IC DATA 14 6 BLOCK DIAGRAM 17 7 SCHEMATIC DIAGRAM AND PARTS LOCATIONS 19 8 EXPLODED VIEW AND PARTS LIST 26 9 ELECTRICAL PARTS LIST 29 Please refer to the service manual for KMK 260 MD unit Part No 354K855090 or 4822 725 51192 at this moment of electrical adjustments and repair for MD unit KMK 260 MD ユニット KMK 260 KMK 260 KMK 26...

Page 2: ... PHONE 82 2 323 2155 FAX 82 2 323 2154 MARANTZ BRAZIL CAIXA POSTAL 21462 CEP 04698 970 SAO PAULO SP BRAZIL PHONE 0800 123123 FAX 55 11 534 8988 PAl YUING CO LTD 6 TH FL NO 148 SUNG KIANG ROAD TAIPEI 10429 TAIWAN R O C PHONE 886 2 5221304 FAX 886 2 5630415 MRZ STANDARD CO LTD 746 754 MAHACHAI RD WANGBURAPAPIROM PHRANAKORN BANGKOK 10200 THAILAND PHONE 66 2 222 9181 FAX 66 2 224 6795 WO KEE HONG ELEC...

Page 3: ...nector 19 dBm Optical input rectangular connector 19 dBm Coaxial input 75 ohm 500 mVp p Laser AIGaAs semiconductor laser Wavelength 780 nm Signal System Sampling frequency 44 1 kHz 32 kHz and 48 kHz inputs are converted into 44 1 kHz Power supply F version AC 100 V 50 60 Hz K version AC 110 V 220 V 50 60 Hz Power consumption 13 W Maximum dimensions 458 W x 86 H x 320 D mm Weight 6 6 kg Permissible...

Page 4: ...the ENTER button At this moment the display shows Ser vice Mode for about 3 seconds 4 It will be the service mode When the display shows TEMP ADJUST the first content of table 2 2 Note The display in the products MD 19 shows the maxi mum 14 characters But this service mode needs the maximum 12 characters Therefore the last 2 charac ters are not related to the service mode 2 2 2 2 2 サービスモードサービスモード...

Page 5: ...ed in servicing If set acciden tally press the EDIT button immediately to exit it 2 6 EEP MODE This mode reads and writes the contents of the non volatile memory It is not used in servicing If set accidentally press the EDIT button immediately to exit it 2 3 2 3 2 3 2 3 2 3 サービスモードの解除方法サービスモードの解除方法サービスモードの解除方法サービスモードの解除方法サービスモードの解除方法 POWER ON STANDBY POWER ON STANDBY POWER ON STANDBY POWER ON ...

Page 6: ...when this is pressed The sled moves to the inner circumference only when this is pressed REC Turns recording on off when pressed during continuous playback DISPLAY Switches the display when pressed Returns to previous step Stop operations Disc eject Note The erasing protection tab in not detected during the SERVICE MODE Recording will start regardless of the position of the erasing protection tab ...

Page 7: ... CLV lock state CLV unlock state TRACK Pit mode Groove mode TOTAL High reflection rate disc Low reflection rate disc SYNC Spindle servo CLV S pull in mode Spindle servo CLV A playing mode AUTO ABCD adjustment completed Not adjustment TOC Focus auto gain and tracking auto gain successful Focus auto garn successful tracking auto gain failed 2 9 2 9 2 9 2 9 2 9 その他のディスプレイ表示の意味その他のディスプレイ表示の意味その他のディス...

Page 8: ...n performing adjustments After completing the adjustments exit the SERVICE MODE 3 Perform the adjustments in the order shown 4 Use the following tools and measuring devices Laser power meter TQ8210 Optical sensor TQ82017 Oscilloscope Measure after pre forming CAL of prove 3 MD ﾕﾆｯﾄ KMK 260 3 MD ﾕﾆｯﾄ KMK 260 3 MD ﾕﾆｯﾄ KMK 260 3 MD ﾕﾆｯﾄ KMK 260 3 MD ﾕﾆｯﾄ KMK 260 電気調整電気調整電気調整電気調整電気調整以下の調整は MD MD...

Page 9: ...of 22 C to 28 C 3 When D101 has been replaced perform this adjustment after the temperature of this part has become the ambient temperature Adjusting Method 1 Selected by Use the JOG dial and display TEMP ADJUST 2 Press the ENTER button and select the TEMP ADJUST mode 3 TEMP and the current temperature a data will be displayed デジタルボルトメータ寒暖計 5 オシロスコープ等で複数の信号を見る場合 VC と GND がオシロスコープ内部で接続されないようにしてくだ...

Page 10: ...l be displayed for some time followed by TEMP ADJUST When the EDIT button is pressed TEMP ADJUST will be displayed immediately Specifications The temperature should be within E0 EF F0 FF 00 0F 10 1F and 20 2F 3 6 LASER POWER ADJUSTMENT Connection Adjusting Method 1 Set the laser power meter on the objective lens of the opti cal pick up When it cannot be set properly press the button or button and ...

Page 11: ...d the of EFB MO R changes and the waveform changes In this adjustment waveform varies at intervals of approx 2 Adjust the waveform so that the specified value is satisfied as much as possible MO read power traverse adjustment Traverse Waveform specification A B 10 EDIT EDIT EDIT EDIT EDIT ボタンを押して表示を LDPWR CHECK にしレーザー発光を止める EDIT EDIT EDIT EDIT EDIT ボタンはいつでも受け付けレーザ発光を止めます 3 7 3 7 3 7 3 7 3 7 トラ...

Page 12: ...ss the button and remove the low reflection disc 17 Load the test disc High reflection disc TMD 381 18 Press the ENTER button and display EFBAL CD Servo is imposed automatically 19 Press the ENTER button 20 Use the JOG dial until the wave forms of the oscilloscope moves closer to the specified value In this adjustment waveform varies at intervals of approx 2 Adjust the waveform so that the specifi...

Page 13: ...om points a and b Note 2 As the C1 error rate changes perform the adjustment using the average vale 3 8 3 8 3 8 3 8 3 8 フォーカスバイアス調整フォーカスバイアス調整フォーカスバイアス調整フォーカスバイアス調整フォーカスバイアス調整調整方法調整方法調整方法調整方法調整方法 1 連続録音済ディスク 3 4 連続録音ディスクの作り方を参照してくださいを挿入する 2 ジョグジョグジョグジョグジョグ JOG JOG JOG JOG JOG ダイヤルを回して表示を CPLAY MODE にする 3 ENTER ENTER ENTER ENTER ENTER ボタンを押して表示を CPLAY MID にする 4 C1 AD の表示が出たら EDIT ED...

Page 14: ...te Check Checking Method 1 Load a test disc High reflection disc TMD 381 2 Use the JOG dial and display CPLAY MODE 3 Press the ENTER button and display CPLAY MID 4 C1 AD is displayed 5 Check that the C1 error is below 20 6 Press the EDIT button stop playback press the button and remove the test disc High reflection disc TMD 381 3 9 2 Low Reflection Disc Error Rate Check Checking Method 1 Load a co...

Page 15: ...A TXD 2 V Div 50 nSec 3 A FS256AD 3 B FS512 5 V Div 10 Sec 4 A DAI_SI 4 B DAI_SO 4 C DAI_CLK 5 V Div 0 1 mSec 5 A SBCK 5 B PW 5 C SBSY 5 D SFSY EXCK SBSO SCOR WFCK 5 V Div 50 Sec 6 A TXT_DQSY 6 B TXT_SI 6 C TXT_CLK 5 V Div 0 5 mSec 7 A FL_STB 7 B FL_CLK 7 C FL_SO 5 V Div 5 mSec 8 A 8 B 8 C ...

Page 16: ...P113 FIP40 FL Segment output 60 S27 P112 FIP39 FL Segment output 61 S26 P111 FIP38 FL Segment output 62 S25 P110 FIP37 FL Segment output 63 S24 P107 FIP36 FL Segment output 64 S23 P106 FIP35 FL Segment output 65 S22 P105 FIP34 FL Segment output 66 S21 P104 FIP33 FL Segment output 67 S20 P103 FIP32 FL Segment output 68 S19 P102 FIP31 FL Segment output 69 S18 P101 FIP30 FL Segment output 70 S17 P100...

Page 17: ... HPFE TST1 TST2 TST3 TST4 16 9 8 10 11 14 Test pin Should be left floating Pull down pin No Pin Name I O PIN FUNCTION 1 AINR I Right channel analog positive input pin 2 AINR I Right channel analog negative input pin 3 VREF O Voltage Reference output pin VA 2 6V Normally connected to VA with a 0 1uF ceramic capacitor in parallel with a 10uF electrolytic capacitor 4 VA Analog section Analog Power Su...

Page 18: ...ed Lo w Level Output 63 Vss GND 64 PA0 AIN0 I IN ENC_O H JOG Rotation Detector 65 PA1 BIN0 IN ENC_1 H JOG Rotation Detector 66 PA2 ZIN0 IN Not Being Used 67 PA3 AIN1 I INT IN PLUG_IN_OUT H L Power Down Detector AC Power On 68 PA4 BIN1 OUT Not Being U sed Lo w Level Output 69 PA5 ZIN1 OUT Not Being Used Lo w Level Output 70 PA6 SDA OUT Not Being U sed Lo w Level Output 71 PA7 SCL OUT Not Being U se...

Page 19: ...SERIAL COM AD0 AD4 ENC 0 1 MUTE DRIVE POWER ON OFF POWER SUPPLY 5VD 5VM 5VH 5VAD 5VDA 12VA 12VA 3 3STB 3 3BAK 25V 5VSTB AC1 AC2 POWER ON AC 11V AC 7 3V AC 23V AC 4 3V AMUTE EMPH PLUG IN OUT IR SENSOR SERIAL COM COAXIAL IN OPTICAL IN 1 OPTICAL IN 2 COAXIAL OUT OPTICAL OUT REC VOL REC BALANCE H P VOL H P OUT AC RS232C R C I O BUFFER R C IN OUT 8 0M 32 768k _RST_AD REMOTE BUS I O _MUTE_SYS ENDEC ATRA...

Page 20: ...19 20 7 SCHEMATIC DIAGRAM AND PARTS LOCATIONS ...

Page 21: ... Q431 Q433 QH10 QH04 QH12 QH06 QH08 QH02 QH07 QH01 QH11 QH05 QH09 QH03 Q401 Q616 Q351 Q617 Q331 Q333 Q334 Q332 Q402 Q352 Q502 Q902 Q901 Q903 Q612 Q614 Q613 Q611 Q615 Q653 Q652 Q656 Q657 Q654 Q658 Q655 Q681 Q501 Q706 Q704 Q702 Q703 Q701 Q707 Q705 Q101 P109 FRONT3 P C Board P103 FRONT1 P C Board ...

Page 22: ...23 24 ...

Page 23: ...25 P306 REC VR P C Board P403 HEAD PHONE P C Board P603 TRANS P C Board P606 AC FILTER P C Board Q301 Q302 Q476 Q474 Q471 Q475 Q473 ...

Page 24: ...B BLACK KNOB ENCORDER 362K154010 061B GOLD KNOB ENCORDER 362K154110 063B BLACK KNOB REC LEVEL 362K154020 063B GOLD KNOB REC LEVEL 362K154120 065B BLACK KNOB REC BALANCE 362K154030 065B GOLD KNOB REC BALANCE 362K154130 067B BLACK 4822 411 20336 KNOB INPUT H P VOLUME 284T154310 067B GOLD KNOB INPUT H P VOLUME 284T154240 005G LEG 299J057110 007G LEG 299J057120 911G BLACK 4822 532 52145 BUSHING MAINS ...

Page 25: ... 8 M 9 9 1 G K ONL Y 5 1 2 7 3 x 8 M 5 1 2 8 3 x 8 M 9 0 1 G 0 5 7 Gx 2 0 5 5 G 5 1 1 0 3 x 8 M P4 0 6 5 1 2 8 3 x 8 M x 7 0 5 1 Gx 3 x 3 0 7 3 G K 9 1 1 G 0 5 9 G 9 1 1 G 0 0 1 M 0 0 2 M 5 1 2 8 2 6 x 6 M 0 0 5 M 0 0 3 M 0 0 4 M 5 1 5 9 3 x 6 A 0 0 5 G 0 0 5 G 5 1 2 6 3 x 1 0 M 0 0 7 Gx 2 0 0 3 G 0 7 1 G K ONL Y 5 1 2 8 3 x 8 M 5 1 2 6 3 x 8 M 5 1 2 8 3 x 8 M L 6 0 1 0 1 5 G P6 0 3 T0 0 1 SYMBOL ...

Page 26: ...µF 80 20 DK98104200 C111 4822 126 11687 CER CHIP 0 1µF 80 20 DK98104200 P106 RESISTORS R101 4822 051 30105 CHIP 1MΩ 5 1 16W NN05105610 R102 4822 051 30222 CHIP 2 2kΩ 5 1 16W NN05222610 R103 4822 051 30822 CHIP 8 2kΩ 5 1 16W NN05822610 R104 4822 051 30332 CHIP 3 3kΩ 5 1 16W NN05332610 R105 4822 051 30222 CHIP 2 2kΩ 5 1 16W NN05222610 R106 4822 051 30822 CHIP 8 2kΩ 5 1 16W NN05822610 R107 4822 051 3...

Page 27: ...C437 4822 126 13883 CER CHIP 220pF 5 CG 50V DD95221300 C438 4822 126 13883 CER CHIP 220pF 5 CG 50V DD95221300 C439 4822 126 12339 CER CHIP 2200pF 10 DK96222300 C440 4822 126 11687 CER CHIP 0 1µF 80 20 DK98104200 C441 4822 124 22274 ELECT 4 7µF M 50V RA 2 OA47505020 C442 4822 124 22274 ELECT 4 7µF M 50V RA 2 OA47505020 C443 4822 124 41544 ELECT 470µF M 6 3V RA 2 OA47700620 C451 4822 124 23649 ELECT...

Page 28: ...LE 4 7Ω 5 1 4W NH05047140 R341 4822 111 90895 CHIP 10kΩ 5 1 10W NI05103110 R344 R345 4822 051 30223 CHIP 22kΩ 5 1 16W NN05223610 R348 R349 4822 111 90895 CHIP 10kΩ 5 1 10W NI05103110 R350 4822 111 90895 CHIP 10kΩ 5 1 10W NI05103110 R351 4822 111 90918 CHIP 4 7kΩ 5 1 10W NI05472110 R352 4822 111 90918 CHIP 4 7kΩ 5 1 10W NI05472110 R353 4822 113 90107 FUSIBLE 4 7Ω 5 1 4W NH05047140 R354 4822 113 901...

Page 29: ...5 CHIP DIODE 1SS301 DAN203U HZ21005000 DH03 4822 130 81324 CHIP DIODE 1SS302 HZ20018050 DH06 D331 5322 130 83285 CHIP DIODE 1SS322 HZ20031050 D338 D431 4822 130 80522 CHIP DIODE 1SS300 DAP202U HZ21006000 D432 4822 130 80522 CHIP DIODE 1SS300 DAP202U HZ21006000 D433 4822 130 10092 CHIP DIODE D1F60 4063 HZ20001290 D611 DIODE D2SBA20 HE20027290 D612 4822 130 11129 CHIP DIODE 7 5V ZENER MA8075 M UDPS7...

Page 30: ...ED FS10080850 F652 F FUSE 1A 250V UL CSA MITI TYPE FBM FS10100360 F652 K 4822 070 38001 FUSE 800 mA 250V BS LISTED FS10080850 J301 4822 290 81723 TERMINAL RCA PIN JACK 4P YT02041070 J501 4822 290 81638 TERMINAL RCA PIN JACK YT02010790 J502 4822 218 11487 OPTICAL RECIVER GP1F32R YJ15000150 J503 4822 218 11487 OPTICAL RECIVER GP1F32R YJ15000150 J504 4822 267 31369 OPTICAL OUTPUT GP1F32T YJ15000090 J...

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