Sharp MD-X7H Service Manual
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Sharp MD-X7H Service Manual

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Download this manual See also: Operating Manual
This new model MD-X7H has almost the same structure as the
former model MD-X8H except for some outer parts, Keyboard
Input/PC control circuit, and so only these parts are here described.
When servicing the MD-X7H, please refer to the already issued
service manual for MD-X8H (S0779MDX8H///) as well as this
service manual.
DIFFERENCE BETWEEN MD-X8H AND MD-X7H
PART NO.
REF.
NO.
MD-X8H
INTEGRATED CIRCUITS
IC440
VHiNJM4558D-1
IC602~604
VHGPC910///-1
IC605
VHiTC7WU04F-1
IC901
RH-iX2679AFZZ
TRANSISTORS
Q603
VSKTA1266GR-1
Q702
VSKRA107M//-1
DIODE
ZD601
VHEUZ5R1BSB-1
COILS
L411~413
VP-DH2R2M0000
CAPACITORS
C410
VCTYMN1EF223Z
C411, 412
VCTYMN1CX122K
C437, 438
VCTYMN1CX822K
C439, 440
VCTYMN1CX222K
C441, 442
VCKYMN1HB471K
C443, 444
RC-GZA226AF1H
C445, 446
RC-GZA225AF1H
C448, 449
VCTYMN1EF223Z
C639
VCTYMN1EF223Z
C640, 641
VCQYKA1HM104J
C642
VCTYMN1EF223Z
C650
VCQYKA1HM104J
RESISTORS
R415, 416
VRD-MN2BD272J
R417, 418
VRD-MN2BD473J
R435, 436
VRD-MN2BD394J
R437, 438
VRD-MN2BD333J
R439, 440
VRD-MN2BD392J
R441, 442
VRD-MN2BD102J
R445, 446
VRD-ST2EE331J
R447, 448
VRD-MN2BD102J
MARK: SPARE PARTS-DELIVERY SECTION
SERVICE MANUAL
PART NO.
MD-X7H
J
Not used
J
Not used
J
Not used
J
RH-iX2717AFZZ
J
Not used
J
Not used
J
Not used
J
Not used
J
Not used
J
Not used
J
Not used
J
Not used
J
Not used
J
Not used
J
Not used
J
Not used
J
Not used
J
Not used
J
Not used
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Not used
SHARP CORPORATION
MD-X7H
• In the interests of user-safety the set should be restored to its original
condition and only parts identical to those specified should be used.
DESCRIPTION
Input Selector, NJM4558D
PC Controll, PC910
PC Controll, TC7WU04F
J
System Control Micon, IX2717AF
Silicon, PNP, KTA1266 GR
Digital, PNP, KRA107 M
Zener, 5.1V, UZ5.1BSB
2.2 µH, Choke
0.022 µF, 25V
0.0012 µF, 16V
0.0082 µF, 16V
0.0022 µF, 16V
470 pF, 50V
22 µF, 50V, Electrolytic
2.2 µF, 50V, Electrolytic
0.022 µF, 25V
0.022 µF, 25V
0.1 µF, 50V, Mylar
0.022 µF, 25V
0.1 µF, 50V, Mylar
2.7 kohms, 1/8W
47 kohms, 1/8W
390 kohms, 1/8W
33 kohms, 1/8W
3.9 kohms, 1/8W
1 kohm, 1/8W
330 ohms, 1/4W
1 kohm, 1/8W
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
MD-X7H
No. SX786MDX7H///
CODE
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  • Page 1 SERVICE MANUAL No. SX786MDX7H/// MD-X7H This new model MD-X7H has almost the same structure as the former model MD-X8H except for some outer parts, Keyboard Input/PC control circuit, and so only these parts are here described. When servicing the MD-X7H, please refer to the already issued •...
  • Page 2 MD-X7H PART NO. PART NO. REF. DESCRIPTION CODE MD-X8H MD-X7H RESISTORS R640 VRD-MN2BD331J Not used 330 ohms, 1/8W — R642 VRD-MN2BD331J Not used 330 ohms, 1/8W — R643 VRD-MN2BD272J Not used 2.7 kohms, 1/8W — R644, 645 VRD-MN2BD331J Not used 330 ohms, 1/8W —...
  • Page 3 MD-X7H PART NO. PART NO. REF. DESCRIPTION CODE MD-X8H MD-X7H CABINET PARTS JKNBK0045AWSA JKNBK0045AWSB Knob, Mic Volume/Input Level GCOVA1143AWSA GCOVA1143AWSB Cover, Disc Tray 1 GCOVA1144AWSA GCOVA1144AWSB Cover, Disc Tray 2 GCOVA1145AWSA GCOVA1145AWSB Cover, Disc Tray 3 92LCAB2530CS1 92LCAB2678CS1 Cabinet GiTAR0272AWSA...
  • Page 4 MD-X7H DISASSEMBLY PROCEDURE STEP REMOVAL FIGURE Speaker 1. Net ......(A1) x1 2. Front Panel ..... (A2) x1 3. Screw ...... (A3) x2 4. Screw ...... (A4) x4 Front Panel Tweeter (A2)x1 (A1)x1 (A3)x2 ø3x10mm (A4)x4 ø4x12mm Speaker Box Speaker Box...
  • Page 5 MD-X7H MIC PWB-C7 MIC VOLUME VR601 20K(B) IC601 R611 C621 10/50 NO. VOLTAGE D615 R620 R609 1SS133 –11.1V 1.5K C615 R615 Q601 10/50 1.5K KTC3199 GR R603 10.8V MICROPHONE C603 EX_MD-R JK601 220P EX_MD-L C605 R607 220P – TO MAIN PWB...
  • Page 6 MD-X7H : Eliminated/Change PARTS MAIN PWB-A(2/3) CNP999 B A SEL MODE INPUT SELECTOR IC902 IC902 R931 BU2092F C901 100K IC904 NO. VOLTAGE 390P R905 R932 NO. VOLTAGE DATA 4052A 0.2V R1071 SW12 4.7V R906 4052B 4.8V LCK1 SW11 0.2V DUBB MODE...
  • Page 7 MD-X7H R1052 R1051 R1050 2.7K 220K IC901 MODE NO. VOLTAGE C939 R1048 INVERTER 0.01 JK902 IC904 AUX DIGITAL 2 74HC153P INPUT R1049 4.8V ZD901 9 10 11 12 13 14 UZ5.1BSB R1053 0.2V L905 C945 2.2µH 4.7V 4.8V 0.047 4.7V IC905 4.6V...
  • Page 8 MD-X7H 23 24 25 MAIN PWB-A(3/3) IC522 FM SIGNAL NO. VOLTAGE CD SIGNAL C541 22/25 –10V R587 100K C573 MIC AMP. R569 IC552 R585 C575 NJM4565D 3.9K Q553 22/50 0.6V – KTC3199 G R551 RMIC MUTE 5.6K C576 22/50 R586 3.9K...
  • Page 9 MD-X7H P40 10-H : Eliminated PARTS 33 34 D421 1SS133 D422 1SS133 R431 R429 L421 2.2µH 2.2K L-CH C429 0.7V 330P R427 AUX OUT L423 100K R419 Q423 2.2µH 5.6K R-CH KTC3199 GR Q541, Q542 : CD MUTE C430 TP39 R428 0.7V...
  • Page 10 MD-X7H DISPLAY PWB-C VSS(VD) VOUT VDD PMODE EXA LCD751 VSS CK CKS DISPLAY OSC1 OSC0 R751 680K FROM LCD751 P/S SDA SCL LAMP PWB-C1 BACK LIGHT LMP741 LMP742 LMP743 LMP744 RESB RESET VSS-TEST FROM POWER AMP. PWB BL+B(HIGH) BL_GND CNS830...
  • Page 11 MD-X7H Y PWB-C6 IC751 ~ IC753 : LCD AMP. IC751 BA10358 – TO MAIN PWB – CNP975 P40 1-B IC752 BA10358 R759 150K L751 – 4.7µH RESET TO MAIN PWB D GND CNP970 +13R5V P40 1-C IC753 BA10358 L752 4.7µH –...
  • Page 12 MD-X7H MAIN PWB-A R1091 R949 R931 R1092 QT21 CT37 R932 R930 L354 R928 CNP950 R1067 R927 IC902 R1063 R926 R1039 Q902 C372 C369 R925 R924 CT36 R362 R1033 R917 CT23 C353 R365 C366 R1064 IC303 ZDT21 CNP960 CT24 C357 R364...
  • Page 13 MD-X7H L354 C331 R350 L321 T302 C369 C367 CNP301 L341 AM ANTENNA R349 C353 TARMINAL C366 R399 IC303 C344 L342 R347 C333 Q301 C357 3 2 1 C399 C351 R348 R393 C348 C334 CF302 1 2 3 B C E...
  • Page 14 MD-X7H VR602 JK601 VR601 MICROPHONE INPUT LEVEL VOLUME JK901 HEADPHONES C646 Q601 D615 2 3 4 IC601 J644 8 7 6 5 C615 C614 R624 BI151/CNS151 R623 BI630/CNS630 C611 BI600/CNS600A/B BI610/CNS610 MIC PWB-C7 SWITCH B PWB-C3 LED PWB-C4 R712 FW701...
  • Page 15 MD-X7H PWB-B3 : Eliminated/Change PARTS MD Mechanism Unit 610x2 602x2 M971 611x5 604x6 PWB-C4 606x2 PWB-C3 604x3 261x2 263x2 601x2 609x2 262x2 PWB-C6 602x2 604x7 604x2 JOG701 604x10 PWB-C5 LCD751 611x2 PWB-C1 611x2 PWB-C2 604x2 603x2 201-17 201-11 201-19 201-14...
  • Page 16 MD-X7H TWEETER SP3 (L-CH) SP4 (R-CH) 2.7µF, 100V, Film Capacitor WOOFER SP1 (L-CH) SP2 (R-CH) SP3 (L-CH) SP4 (R-CH) 911x2 910x4 903x4 SP1 (L-CH) SP2 (R-CH) TWEETER C1+Cord SP3 (L-CH) Ass'y SP4 (R-CH) WOOFER SP1 (L-CH) SP2 (R-CH) Figure 16 SPEAKER EXPLODED VIEW...
  • Page 17 MD-X7H PACKING OF THE SET (FOR UK ONLY) 1. Polyethylene Bag, Unit SSAKH0022AWZZ 13. Label, VM No. DFZKN0002AW01 2. Packing Add., Left/Right SPAKA0161AWZZ 14. REG Card 92LCARD1751A 3. Remote Control RRMCG0135AWSA 15. Polyethylene Bag, 92LBAG1770A 5. AM Loop Antenna QANTL0001AWZZ AC Power Supply Cord 6.
  • Page 18 ------------------------ MD-X8 ------------------------ ------------------------ MD-X8H ------------------------ ------------------------ MD-X8W ------------------------ ------------------------ MD-X7 ------------------------ ------------------------ MD-X7H ------------------------ ------------------------ CD-C1W ------------------------ ------------------------ CD-K1W ------------------------ ------------------------ CD-C1H ------------------------ ------------------------ General E We inform you that the parts code of following Service Manual have been changed.
  • Page 19 MD-R3 ------------------------ ------------------------ MD-R3H ------------------------ ------------------------ MD-X5 ------------------------ ------------------------ MD-X5H ------------------------ ------------------------ MD-X5W/ ------------------------ ------------------------ CP-X5W MD-X7 ------------------------ ------------------------ MD-X7H ------------------------ ------------------------ MD-X8 ------------------------ ------------------------ MD-X8H ------------------------ ------------------------ MD-X8W ------------------------ ------------------------ MD-X60 ------------------------ ------------------------ MD-X60H ------------------------ ------------------------ General E We inform you that the parts code of following Service Manual have been changed.
  • Page 20 QUANTITY ( OLD ) MODEL ITEM MD-X5 ------------------------ ------------------------ ----- MD-X5H ------------------------ ------------------------ ----- MD-X5W ------------------------ ------------------------ ----- MD-X7 ------------------------ ------------------------ ----- MD-X7H ------------------------ ------------------------ ----- MD-X8 ------------------------ ------------------------ ----- MD-X8H ------------------------ ------------------------ ----- MD-X8W ------------------------ ------------------------ ----- MD-X60 ------------------------ ------------------------...
  • Page 21 ------------------------ ------------------------ CD-C3W/K3W ------------------------ ------------------------ CD-C5W/K5W/C5H ------------------------ ------------------------ CD-K1W/C1W/V300DW ------------------------ ------------------------ MD-R3 ------------------------ ------------------------ MD-R3H ------------------------ ------------------------ MD-X7 ------------------------ ------------------------ MD-X7H ------------------------ ------------------------ MD-X8 ------------------------ ------------------------ MD-X8H ------------------------ ------------------------ MD-X8W ------------------------ ------------------------ MD-X60 ------------------------ ------------------------ MD-X60H ------------------------ ------------------------ MD-XV300H ------------------------...
  • Page 22 General We inform you that there is a printing error in the parts list of Service Manual as follows. • Please order or supply parts using the part codes which have correct numbers. Refer to Service Manual Parts INTER- EFFEC- PRICE PARTS CODE CHANGE- TIVE E REF.No.
  • Page 23 General E [Problem] "MECHA ERR 1M" appears after ejecting a disc. Then, a disc cannot be reloaded. [Probable causes] The roller arm does not move (backward) well because of the following causes : 1. The amount of grease on the sliding part is small. 2.
  • Page 24 EAA - 943 E [Repair] 1) Apply grease between the edge of the cam plate 1 and the bar of the holder arm 2 . D [Reparatur] 1) Schmierfett zwischen der Kante der Nockenplatte 1 und der Stange des Halterarms 2 auftragen. F [Réparation] 1) Appliquer de la graisse entre l’extrémité...
  • Page 25 E 3) Gain the spring strength which pushes the roller arm assembly back to the stand-by position. Bend the tip of the spring hook (the figure below) approximately 1 mm inside of the mechanism ( to the spindle motor). The push back strength of the roller arm assembly will gain. D 3) Die Federkraft verstärken, die die Rollenarm-Baugruppe in die Bereitschaftsstellung zurückzustoßen.
  • Page 26 Parts INTER- EFFEC- PRICE REPLACEMENT PART No. CHANGE- TIVE E REF.No. DESCRIPTION Q'ty ABILITY FROM RANK OLD No. Q'ty NEW No. Holder,Cartridge LHLDX3003AWM1 1 LHLDX3004AWM1 1 Sep. '98 AM ----- Lever,Roller Arm MLEVF0035AWM1 1 MLEVF0037AWM2 1 Sep. '98 AG 3 606 Screw,ø1.7x2.5mm LX-BZ0851AFZZ 3 LX-BZ0851AFZZ Aug.
  • Page 27 EAA-909 MD-X60 MLEVF0037AWM2 LHLDX3004AWM1 SW1956 PWB-E SW1953 1952 SW1955 SW1954 603x2 CW1901 603x2 PWB-D 612x4 M902 M903 M901 606x3 LX-BZ0036AWZZ –3–...
  • Page 28 MD-X7H - MEMO - – 18 –...
  • Page 29 MD-X7H - MEMO - – 19 –...
  • Page 30 MD-X7H © COPYRIGHT 1997 BY SHARP COPORATION ALL RIGHTS RESERVED. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any from or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher.
  • Page 31 • Note for users in UK Recording and playback of any material may require consent MD-X7H which SHARP is unable to give. Please refer particularly to the provisions of Copyright Act 1956, the Dramatic and Musical Performers Protection Act 1956, the Pertmers Protection Acts...
  • Page 32 MD-X5/X5H/X5W/X7/X7H/X8/X8H/X8W/XV300H/XV300X : Places to add/change/correct MD-X5/X5H/X5W MD SECTION (See the MD-X5/MD-X5W service manual, page 16.) (See the MD-X5H service manual, page 20.) When the combination consisting of the pickup mechanism and the PWB is changed, enter the TEST mode, make a preliminary automatic adjustment and then a full automatic adjustment.
  • Page 33 MD-X5/X5H/X5W/X7/X7H/X8/X8H/X8W/XV300H/XV300X : Places to add/change/correct 2. Test mode Test mode setting method 1. Holding down the ENTER button and MD (PLAY/PAUSE) button, press the POWER 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 state is set.
  • Page 34 MD-X5/X5H/X5W/X7/X7H/X8/X8H/X8W/XV300H/XV300X EEPROM Data List (As of November, 1998) : Places to add/change/correct Version Version Setting Setting Setting Item indication Setting Setting Setting Item indication SLCTt SLCTm TCRSCIP COTLVP FZHLEV COTLVr FOKLEVn WAITm FOKLEVf FOKLPFn FOKLPFf SLDLIM WAITf SLDLEV SLKLVk SPG-in SLKLVt SPG-mid SLKLVm...
  • Page 35 MD-X5/X5H/X5W/X7/X7H/X8/X8H/X8W/XV300H/XV300X : Places to add/change/correct MD-XV300H/XV300X EEPROM (IC1402) writing procedure 1. Procedure to replace EEPROM and to write the initial value of microcomputer in EEPROM (See the MD-XV300H service manual, page 27.) (See the MD-XV300X service manual, page 25.) (1) Replace EEPROM. (2) Refer to the latest EEPROM data list.
  • Page 36 MD-X5/X5H/X5W/X7/X7H/X8/X8H/X8W/XV300H/XV300X EEPROM Data List (As of November, 1998) : Places to add/change/correct Version Version Data Name Data Name DFLT DFLT TRBLVo TRBLVt FZHLEV TRKLVo FOKLEVn TRKLVt FOKLEVf TDPWo FOKLPFn TDPWt FOKLPFf SLCTo WAITf SLCTt SLCTm SPG-in COTLVHp SPG-mid COTLVLp SPG-out COTLVHr COTLVLr WAITm...

  • Page 37: Table Of Contents

    RDS OPERATION ................................91 REPLACEMENT PARTS LIST/EXPLODED VIEW/ PACKING OF THE SET (FOR UK ONLY) This document has been published to be used SHARP CORPORATION for after sales service only. – 1 – The contents are subject to change without notice.

  • Page 38: Safety Precaution For Service Manual

    MD-X8H SAFETY PRECAUTION FOR SERVICE MANUAL WARNINGS (CD) WARNINGS (MD) THE AEL (ACCESSIBLE EMISSION LEVEL) OF THE LASER The AEL (ACCESSIBLE EMMISSION LEVEL) of the laser POWER OUTPUT IS LESS THAN CLASS 1 BUT THE LASER power output is less than class 1 but the laser component is COMPONENT IS CAPABLE OF EMITTING RADIATION capable EXCEEDING THE LIMIT FOR CLASS 1.

  • Page 39: Impotant Service Manual (For Uk Only)

    MD-X8H FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TO THE OPERATION MANUAL. IMPORTANT SERVICE NOTES (FOR UK ONLY) Before returning the unit to the customer after completion of a repair or adjustment it is necessary for the following withstand voltage test to be applied to ensure the unit is safe for the customer to use.

  • Page 40: Names Of Parts

    MD-X8H NAMES OF PARTS FRONT PANEL 1. On/Stand-by Button: ON/STAND-BY 2. Remote Control Sensor 3. MD MD Edit Button: MD 4. CD Track Select Button: TRACK 5. Personal Computer Mode Indicator 6. LCD Display 7. Name/TOC-Edit/RDS Button: NAME/TOC EDIT/R..D..S 22 23 24 25 26 27 8.
  • Page 41 MD-X8H REMOTE CONTROL 1. Record Mode Button: REC MODE 5 6 7 2. Record Button: 3. Clear Button: CLEAR 4. Programme Button: PRGM 5. Play Mode Button: P-MODE 6. Synchro Record Button: SYNCHRO REC AUTO SYNCHRO MARK MODE 7. Auto Mark Button: AUTO MARK PRGM CLEAR P-MODE...

  • Page 42: Operation Manual

    MD-X8H OPERATION MANUAL – 6 –...
  • Page 43 MD-X8H – 7 –...

  • Page 44: Disassembly

    MD-X8H DISASSEMBLY STEP REMOVAL PROCEDURE FIGURE Caution on Disassembly Whe disassembling the machine or assenbling it after CD Mechanism 1. Screw ....(U1) x2 10-1 repair, observe the following instructions so as to ensure 2. Top Bord ... (U2) x1 3.
  • Page 45 MD-X8H (C2) x1 (C3) x2 (J1) x4 ø3 x8mm (C1) x1 ø3 x8mm (D2) x2 ø3 x10mm (D1) x1 Front Panel Main PWB Sub Chassis Motor M971 (J2) x2 MD Unit ø3 x8mm (D3) x2 (D2) x1 Power PWB ø3 x8mm Main Chassis Figure 9-1 (J2) x1...
  • Page 46 MD-X8H (U3) x1 Push (U1) x2 (U5) x1 ø2 x7mm ø2.6 x12mm Pawl (U6) x1 (U9) x1 Spring (U7) x2 Mechanism ø2 x6mm (U2) x1 (U10) x4 Push the pawl of disc tray (U8) x1 ø2.6 x10mm with a proper screwdriver. Normal state Turn clockwise the main cam to raise the...
  • Page 47 MD-X8H SPEAKER MD Mechanism Top Panel (A1) x1 Frame Speaker Box Front Panel Figure 11-3 (A4)x1 Front Panel (X1)x4 (A3)x4 Ø4x16mm ø1.7x8.9mm Figure 11-1 (A2)x4 MD Main PWB Speaker Cord Copper foil tape CNS1902 Solder joint (A6)x4 Tweeter Ø3x12mm 24Pin Flat Cable (42) (Caution) Speaker Cord The copper foil tape is wound around the 24 pin flat...

  • Page 48: Removing And Reinstalling The Main Parts

    MD-X8H REMOVING AND REINSTALLING THE MAIN PARTS (A1)x1 MD MECHANISM SECTION ø1.7x5mm Perform steps 1 to 3 of the disassembly method to remove the MD mechanism. (A2) How to remove the magnetic head Soldering x2 (See Fig. 12-1) Magnetic Head 1.
  • Page 49 MD-X8H How to remove the spindle motor (See Fig. 13-1) 1. Remove the screws (E1) x 3 pcs., and remove the spidle motor. Caution: Be careful so that the turntable is not damaged. Turntable Spindle Motor (E1)x3 Ø1.7x2.5mm Figure 13-1 How to remove the optical pickup (F1)x3 Ø1.7x9.5mm...
  • Page 50 MD-X8H CD MECHANISM SECTION (A1) x2 ø2.6 x5mm For the procedure to remove the CD mechanism from the Stop Washer main unit, refer to Disassembling Procedure, Steps 1~10, and (A3) x1 19. (p.8). Pickup How to Remove the optical pickup (See Fig.

  • Page 51: Adjustment

    MD-X8H ADJUSTMENT TUNER SECTION fL: Low-range frequency • TEST mode setting method fH: High-renge frequency Holding down the ENTER button and TUNER (BAND) button, • AM adjustment and confirmation turn on the power. Frequency is set in the memory (initial AM signal oscillator Frequency 400 Hz, 30%, AM modulation setting) as shown in Table 15.
  • Page 52 MD-X8H CD TEST MODE CD test mode setting Any one of test mode can be set by pressing several buttons as follows. Holding down CD PLAY/PAUSE and TACK UP/CUE, turn on POWER. TEST: CD operation test Test Mode Function - CD TEST mode Setting of Test mode Initialization is not performed.
  • Page 53 MD-X8H MD SECTION • Note Remove the MD unit for repeir, ansd after installing it in the set, be dure to reset it and ascertain that reset has been done. Resetting procedure (1) Unplug the AC cord from the socket, and hold down the RESET buttonm provided at the rear side for more than 10 seconds.
  • Page 54 MD-X8H • Test Mode 1. AUTO pre-adjustment mode • Automatic pre-adjustment is performed. (After adjustment the grating adjustment mode is set.) • The adjustment value is output with the aid of system controller interface. 2. AUTO adjustment mode • Automatic adjustment is performed. •...
  • Page 55 MD-X8H 2. AUTO adjustment mode Step No. Setting Method Remarks Display Step 1 Testmode STOP state [ t s m Step 2 Press the CD PLAY button two times. AUTO adjustment menu [ A U T O _ A J S T _ ] Step 3 Press once the MD PLAY button.
  • Page 56 MD-X8H 3. RESULT mode (final adjustment) Step No. Setting Method Remarks Display Step 1 Testmode STOP state [ t s m Step 2 Press the CD PLAY button four times. RESULT menu [ _ R E S U L T _ _ _ ] Step 3 Press once the MD PLAY button.
  • Page 57 MD-X8H • If the VOL UP/VOL DOWN button is pressed during setting indication, the setting increases/decreases, and the new setting is stored in RAM. • If the VOL UP/VOL DOWN button is held down, the setting changes continuously with 100 ms cycle. •...
  • Page 58 MD-X8H Setting Method Step No. Remarks Display Step 9 Press once the CD PLAY button. Comparison level setting in case of FOK generation [ F O K L E V f _ (when focus is "ON") Step 10 Press once the CD PLAY button. LPF coefficient setting (normal) in case of FOK generation [ F O K L P F n _ Step 11 Press once the CD PLAY button.
  • Page 59 MD-X8H Setting Method Step No. Remarks Display Step 18 Press once the CD PLAY button. TCRS comparison level 1 for high reflection [ T C R S C 1 P _ Step 19 Press once the CD PLAY button. Comparison level in case of COUT generation (playback) [ C O T L V P _ Step 20 Press once the CD PLAY button.
  • Page 60 MD-X8H e) TEMP setting Step No. Setting Method Remarks Display Step 1 Testmode STOP state [ t s m Step 2 Press the CD PLAY button seven times. EEPROM setting menu [E E P R O M _ S E T] Step 3 Press once the MD PLAY button.
  • Page 61 MD-X8H 8. TEST-PLAY mode Step No. Setting Method Remarks Display Step 1 Testmode STOP state [ t s m Step 2 Press the CD MD EDIT button. TEST-PLAY menu [ T E S T _ P L A Y _ ] Step 3 Press once the CD STOP button.
  • Page 62 MD-X8H 11. EJECT mode Step No. Setting Method Remarks Display Step 1 Testmode EJECT state [ _ _ E J E C T _ _ _ ] Step 2 Press oncethe CD STOP button. Max. power output state [ x p w _ _ _ _ _ _ _ ] Step 3 Press once the CD STOP button.
  • Page 63 MD-X8H EXPLANATION OF ERROR DISPLAY Error display Errors Corrective action Can't REC • Defect occurred successively 10 times during REC-PLAY. • Check that the disc is free from flaw, dust • As a result of occurrence of defect during REC-PLAY the and fingerprint.
  • Page 64 MD-X8H Error display Errors Corrective action BLANK MD • UTOC was read but total TNO and the number of characters of • Perform recording to check that the disc NAME was 0? is recordable disc. DEFECT • Focusing error was caused by shock during REC-PLAY. •...
  • Page 65 MD-X8H -PROM Data List Focus setting Slide setting Setting Item indication Setting Item indication S L G S L 2 F F 1 S L D L I M F F 2 S L D L E V F Z H L E V S L K L V k F O K L E V n S L K L V t...
  • Page 66 MD-X8H -PROM Setting Mode Chart Figure 30 – 30 –...

  • Page 67: Notes On Schematic Diagram

    MD-X8H NOTES ON SCHEMATIC DIAGRAM • Resistor: • The indicated voltage in each section is the one measured by Digital To differentiate the units of resistors, such symbol as K and M are Multimeter between such a section and the chassis with no signal used: the symbol K means 1000 ohm and the symbol M means 1000 kohm and the resistor without any symbol is ohm-type resistor.

  • Page 68: Wiring Diagram

    MD-X8H MD MAIN PWB-G(BOTTOM) LAMP PWB-C1 MD MECHANISM SWITCH PWB-H CNP741 CNS1901 CNP1904 FW1901 M903 SWITCH A PWB-C2 SWITCH B PWB-C3 LED PWB-C4 FW701 FW701 MD MAIN PWB-G (TOP) MD FLAT CABLE (42) CNS1902 LMP701 CNP125 JOG701 M901 SWITCH C PWB-C5 M902 CNP1603 DISPLAY PWB-C6...
  • Page 69 MD-X8H POWER PWB-B1 CNS1904A CNS1904B BI850 BI830 CNP1904 MD OPTICAL PICK UP UNIT FLEXIBLE PWB T801 POWER TRANSFOMER CNP261 CNS961 M971 FAN MOTOR MAGNETIC HEAD(40) POWER AMP. PWB-B2 CNP1252 CNS1903 IC201 COLOR TABLE BROWN SO201 RD(R) AC POWER ORANGE SUPPLY YELLOW CORD(265) AC230V 50Hz...

  • Page 70: Block Diagram

    MD-X8H Figure 34 BLOCK DIAGRAM (1/4) – 34 –...
  • Page 71 MD-X8H PICKUP IN SW702A M702 SLED MOTOR M701 SPINDLE MOTOR LASER DRIVER M56748FP FOCUS/TRACKING/ SPIN/SLIDE DRIVER LA9241M SL– SERVO AMP. 27 26 16.934MHz XOUT LC78623D SERVO SIGNAL CAM SWITCH VVDD SWB101 CONTROL SWB102 LVDD SWB103 RVDD SWB104 OPTICAL XVDD PICKUP TRAY SWITCH SWB105 SWB106...
  • Page 72 MD-X8H FM/AM Q353 Q354 X351 VOLTAGE CF351 REGURATOR PHASE IF IN CF352 Q371 MONO/ST FM MONO/ST TO µ-COM STEREO FM IN AM IF XT21 AM RF IN T351 AM IN FM IF X352 4.5MHz FM IF IN CF302 FM IF Q301 VR351 FM MUTE...
  • Page 73 MD-X8H IC905 JK902 8 MULTIPLEXER IC751~IC753 74HCU04 DIGITAL 2 INPUT LCD AMP. UNA901 AC POWER IC752 SO201 DIGITAL 1 SUPPLY CORD CONTROLL JK901 SPEAKER INPUT SO602 AC230V BA13058 HEADPHONES TERMINALS 50Hz IC605 TC7WU04F FAN MOTOR M971 ON–OFF FAN MOTOR T801 POWER IC602~IC605 Q271...

  • Page 74: Schematic Diagram / Wiring Side Of P.w.board

    MD-X8H MIC PWB-C7 MIC VOLUME VR601 20K(B) IC601 R611 C621 10/50 NO. VOLTAGE D615 R620 R609 1SS133 1.5K –11.1V C615 R615 Q601 10/50 1.5K KTC3199 GR R603 10.8V MICROPHONE C603 EX_MD-R JK601 220P EX_MD-L C605 R607 220P – TO MAIN PWB AUX_OUT-R R601 C601...
  • Page 75 MD-X8H FM SIGNAL AM SIGNAL MAIN PWB-A(1/3) ( ):AM IC303 ICT21 OTHER:FM(ST) NO. VOLTAGE NO. VOLTAGE IC302 2.1V 2.6V(0.2V) NO. VOLTAGE 4.9V 2.6V(0V) 2.1V 5.2V(0V) 2.4V 2.1V 0V(0V) 2.6V(0V) 4.8V 2.6V(0V) 4.95V 0V(0V) 2..8V 0V(0V) 4.9V 4.9V 0.2V 3.7V 3.6V 3.6V 2.6V(0V) 3.8V...
  • Page 76 MD-X8H MAIN PWB-A(2/3) CNP999 B A SEL MODE INPUT SELECTOR IC902 IC902 R931 BU2092F C901 100K IC904 390P NO. VOLTAGE R905 R932 NO. VOLTAGE DATA 4052A 0.2V R1071 SW12 4.7V R906 4052B 4.8V LCK1 SW11 0.2V DUBB MODE SRS PASS/ON R904 4.7V SW10...
  • Page 77 MD-X8H R1050 R1052 R1051 220K 2.7K IC901 NO. VOLTAGE C939 R1048 INVERTER 0.01 JK902 IC904 AUX DIGITAL 2 74HC153P INPUT R1049 4.8V ZD901 9 10 11 12 13 14 UZ5.1BSB 0.2V R1053 L905 C945 2.2µH 4.7V 4.8V 0.047 4.7V IC905 4.6V C932 C933...
  • Page 78 MD-X8H 23 24 25 MAIN PWB-A(3/3) IC522 FM SIGNAL NO. VOLTAGE CD SIGNAL C541 22/25 –10V R587 100K C573 MIC AMP. R569 IC552 R585 C575 NJM4565D 3.9K 22/50 Q553 0.6V – KTC3199 G R551 RMIC MUTE 5.6K C576 22/50 R586 3.9K Q551 3.8V...
  • Page 79 MD-X8H P40 10-H 33 34 D421 1SS133 D422 L421 1SS133 R431 R429 2.2µH L421 2.2µH 2.2K L-CH C429 0.7V 330P R427 AUX OUT L423 100K R419 Q423 2.2µH 5.6K R-CH KTC3199 GR Q541, Q542 : CD MUTE C430 TP39 R428 0.7V 330P L-CH...
  • Page 80 MD-X8H MAIN PWB-A R1091 R949 R931 R1092 QT21 CT37 R932 R930 L354 CNP950 R928 R350 R1067 R927 IC902 R1063 R926 Q902 R1039 C372 C369 C367 R925 R924 CT36 R362 R1033 R917 CT23 C353 R365 C366 IC303 R1064 ZDT21 CNP960 CT24 C357 R364 C399...
  • Page 81 MD-X8H CT37 L354 C331 R350 L321 T302 C372 C369 C367 CNP301 L341 AM ANTENNA R349 C353 TARMINAL C366 R399 C344 IC303 L342 R347 C333 Q301 C357 3 2 1 R364 C399 C351 R348 R393 C348 C334 CF302 1 2 3 B C E CNP301 C346...
  • Page 82 MD-X8H NO. VOLTAGE NO. VOLTAGE CD SERVO PWB-C8 2.5V 2.5V DRIVER 2.5V LASER 2.5V 2.6V 47/10 KTA1266 GR 2.5V 4.9V 0.47/50 1.5V 4.9V 2.6V 2.5V 0.33/50 1/50 4.2V 2.5V 2.5V 0.01 2.6V 2.5V 2.6V 2.5V 2.5V 2.5V 4.9V 2.5V VCC1 –...
  • Page 83 MD-X8H NO. VOLTAGE 2.5V 2.5V 0.2V 2.5V R77 1K 2.5V R46 1K 2.6V R47 1K 2.6V R45 1K R78 1K CD SIGNAL R48 1K 2.6V 0.01 2.6V 2.5V 2.5V 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 5.9V EFLG...
  • Page 84 MD-X8H MOB1 MOB2 MAIN CAM MOTOR TRAY MOTOR M971 FAN MOTOR BIM1 CNS961 TO POWER AMP. PWB TO CD SERVO PWB CNP261 CNP11 COLOR TABLE BROWN R D ( R ) BIM3 SWB101 CAM1 ORANGE TO MAIN PWB YELLOW SWB102 CAM2 CNP900 GREEN SWB103...
  • Page 85 MD-X8H VR602 JK601 VR601 MICROPHONE INPUT LEVEL VOLUME JK901 PC CONTROL HEADPHONES SO602 KEYBORD INPUT SO601 R650 C646 Q601 C639 C650 ZD601 R655 5 6 7 8 1 2 3 4 D615 R644 IC605 R640 2 3 4 4 3 2 1 8 7 6 5 IC601 J644...
  • Page 86 MD-X8H DISPLAY PWB-C VSS(VD) VOUT VDD PMODE EXA LCD751 VSS CK CKS DISPLAY OSC1 OSC0 R751 680K FROM LCD751 P/S SDA SCL LAMP PWB-C1 BACK LIGHT LMP741 LMP742 LMP743 LMP744 RESB RESET VSS-TEST FROM POWER AMP. PWB BL+B(HIGH) BL_GND CNS830 P55 9-G CNP751 REMOTE SENSOR...
  • Page 87 MD-X8H Y PWB-C6 IC751 ~ IC753 : LCD AMP. IC751 BA10358 – TO MAIN PWB – CNP975 P40 1-B IC752 BA10358 R759 150K L751 – 4.7µH RESET TO MAIN PWB D GND CNP970 +13R5V P40 1-C IC753 BA10358 L752 4.7µH –...
  • Page 88 MD-X8H LAMP PWB-C1 SWITCH A PWB-C2 LED772 CNP741 R792 SW789 LMP741 MD PLAY/ PAUSE C775 R788 C771 C772 C774 SW788 C773 MD STOP R776 R787 R777 LMP742 R778 VOLUME DOWN JOG701 LMP744 SW787 3D SURROUND R786 SW786 X-BASS LMP743 R785 SW785 EQUALIZER SW784...
  • Page 89 MD-X8H SWITCH B PWB-C3 LED PWB-C4 R712 FW701 FW701 LED706 SW701 POWER ON/STAND-BY SW707 COMPUTER NETWORK R706 LED705 RX701 REMOTE SENSOR R714 R711 SW704 SW703 SW702 CD/MD MD EDIT CD/MD MD EDIT CD/MD MD EDIT C701 SW706 TRACK MD EJECT SW705 C703 MD REC...
  • Page 90 MD-X8H FM SIGNAL POWER AMP.PWB-B2 IC201 IC201 STK40705 NO. VOLTAGE – – POWER AMP. –34V –34V Q251 KTC3199 GR –7V –5.6V 4.5V FR202 R205 Q252 R253 KTC3199 GR –34V C205 C221 C250 R201 1/50 C207 4.5V 0.022 100K R245 C203 R251 470P R265...
  • Page 91 MD-X8H Q271,Q272: MOTOR DRIVER RELAY RL201 R271 OUL_L R276 R272 OUL_R D203 ZD271 M971 99 GR 1SS133 UZ6.2BSB D270 1SS133 MOTOR 4.5V 4.5V D271 R229 1SS133 R275 D201 3.9K Q252 1SS133 KTC3199 GR Q297 D272 KTC3199 GR 1SS133 4.5V 4.5V D202 C271 1SS133...
  • Page 92 MD-X8H POWER PWB-B1 BI850/CNS850 1 2 3 4 5 6 7 8 C891 C807 D820 R801 D814 D815 C806 C805 D813 D812 F805 T1.6A L 250V T801 POWER TRANSFOMER F803 T5A L 125V F802 T5A L 125V T.F. L801 Brown (274) Blue CORE...
  • Page 93 MD-X8H POWER AMP. PWB-B2 Q871 D871 D872 FR811 R873 C816 BI830/CNS830 R813 RP821 R811 R866 C888 ZD810 C817 R865 C815 R831 C818 C832 Q862 C831 C823 Q851 R820 D801 ZD820 R821 Q850 C820 C851 R853 Q274 CNP261 Q840 Q272 R270 C272 C883 R888...
  • Page 94 MD-X8H SITUATION : TP1141 C1117 0.0033 TP1131 C1118 C1107 C1110 0.033 0.0047 0.47 TP11 C1106 0.47 EFMAGI EFMAGC ADIPI C1119 330P & ADIPO DIFF ADLPFO DIFF C1102 TP11 REFI 22KO IC1101 ADIP IR3R55 C1103 RF SIGNAL 22KI REFO PROCESSOR RFADD BIAS C1104 R1102...
  • Page 95 MD-X8H TP1131 C1107 TP1275 0.0047 TP1142 C1106 0.47 99 98 97 96 9 ADIPI TP1274 EFMMON TP1140 C1119 R1155 AVCC 330P EFMO-I EFMO-I C1202 TP1139 EFMI 99 98 ADIPO AGND AOUT-IN AOUT-IN EOUT-IN EOUT-IN ADLPFO BOUT-IN BOUT-IN TP1138 22KO FOUT-IN FOUT-IN VBAT 22KI...
  • Page 96 MD-X8H SITUATION : Waveforms should be measured by inserting the circuit, as shown in the figure. 100K Connect an oscilloscope. 270P R1211 C1208 0.047 TP1275 TP1210 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 TP1216 FEMON EFMMON...
  • Page 97 MD-X8H MD MAIN PWB-G n in the figure. scilloscope. DADATA ADDATA DFCK BCLK LRCK AND GATE IC1916 74VHC08FT TP1911 R1927 CNP1904 DOUTO TP1901 DIGOUT TO MAIN TP1902 C1951 0.047 CNP961 TP1904 DIGIN P41 12 - B R1974 CNS1904A CNS1904B R1973 6.8K R1969 C1958...
  • Page 98 MD-X8H SITUATION : CNS1101 FLEXIBLE 9 8 7 5 4 3 2 1 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 L1251 47uH R1223 C1252 C1251 120P (CH) 0.027 EFMO LDOUT MAGNETIC Q1251...
  • Page 99 MD-X8H VREF3.2V R1401 MINF R1423 HINF TP1405 R1404 C1402 R1424 R1426 0.047 R1472 L1251 47uH R1223 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 TP1260 EFMO XRST DIGCD LDVAR LDVAR DIGEX 82 81...
  • Page 100 MD-X8H SITUATION : IC1990 74AC04FS L1203 4.7µH INVERTOR C1711 0.01 C1716 0.01 28 27 26 25 24 23 22 21 20 REF3.2V IC1701 UDA1340 R1423 A/D,D/A CONVE C1709 0.047 R1424 1 2 3 4 5 6 7 8 9 R1418 87 86 85 84 83 82 81 TP1701 C1701...
  • Page 101 MD-X8H R1712 100K C1711 0.01 C1716 0.01 L3DATA 28 27 26 25 24 23 22 21 20 19 18 17 16 15 MD PLAYBACK SIGNAL IC1701 MD RECORD SIGNAL UDA1340 A/D,D/A CONVERTER 1 2 3 4 5 6 7 8 9 10 11 12 13 14 C1715 22/4...
  • Page 102 MD-X8H TO MAIN PWB CNP950 FROM MAGNETIC HEAD CNS1903 MD FLEXIBLE PWB (42) CNS 1902 CNP1252 Q1820 2322 212019181716151413121110 C1251 C1252 R1251 R1827 R1939 R1463 R1459 Q1253 Q1254 C1425 R1461 R1253 C1460 R1734 R1252 R1807 R1223 R1806 IC1251 C1704 Q1804 J1921 C1716 R1964...
  • Page 103 MD-X8H • Through-hole where the top, bottom and +B patterns are connected. • Through-hole where the top, bottom and ground patterns are connected. • Through-hole where the top, and bottom patterns are connected. CNS1904A CNS1904B TO MAIN PWB CNP961 JC121 R1947 TP1516 TP1519...

  • Page 104: Voltage

    MD-X8H VOLTAGE (MD MAIN PWB) IC1916 IC1202 Q1801 IC1201 IC1401 IC1601 IC1907 NO. VOLTAGE NO. VOLTAGE NO. VOLTAGE NO. VOLTAGE VOLTAGE NO. VOLTAGE NO. VOLTAGE NO. VOLTAGE 1.58V 1.1V 1.48V 1.25V 2.8V 3.2V 1.1V 2.6V 1.58V 1.6V 0.2V 1.5V 4.9V 3.2V 3.2V 5.5V...

  • Page 105: Waveforms Of Cd Circuit

    MD-X8H WAVEFORMS OF CD CIRCUIT STOP PLAY FOCUS SERCH 0.5ms 0.50 V 10.0 V IC1 20 F.E 0.5ms 10.0 V 0.5ms 5.0 V 0.50 V IC1 54 DRF 0.5ms 1.00 V NORMAL DISC 0.5ms TN0=01 1.00 V 20ms PLAY 1.00 V 0.5ms 5.0 V 20ms...

  • Page 106: Waveforms Of Md Circuit

    MD-X8H WAVEFORMS OF MD CIRCUIT PLAY STATE PIT PLAY Stopped Stopped NORM: 100M S/s NORM: 1M S/s 1997 / 08 / 04 09:30:15 1997 / 08 / 04 13:35:24 CH1 500mV 200mV 500ns/div 1ms/div AC 10:1 DC 10:1 DC 10:1 AC 10:1 DC 10:1 Filter...
  • Page 107 MD-X8H PLAY Stopped Stopped NORM: 1k S/s NORM: 100M S/s 1997 / 08 / 04 14:19:52 1997 / 08 / 04 11:23:12 1s/div 2us/div DC 10:1 DC 10:1 DC 10:1 DC 10:1 DC 10:1 DC 10:1 DC 10:1 Filter Filter SMOOTH SMOOTH FULL...

  • Page 108: Troubleshooting (Cd Section)

    MD-X8H TROUBLESHOOTING (CD SECTION) When the CD does not function When the CD section does not operate When the objective lens of the optical pickup is dirty,this section may not operate.Clean the objective lens,and check the playback operation.When this section does not operate even after the above step is taken,check the following items.
  • Page 109 MD-X8H • The CD operation keys work. Check the FOCUS-HF system. Playback can be performed without a disc. Focus search OK Does the pickup move up and down two twice? Does the output waveform of IC1 pin 16 (FD) match that Check the area around IC5 to CNP2.
  • Page 110 MD-X8H • Check the tracking system. Check the waveform of IC1 pin 7 (TE). The waveform shown in Figure 74-1 Check the periphery of IC1 pin 8 to pin Tracking servo is inoperative. appears, and no disc state appears soon. 15, and IC5 to CNP2.
  • Page 111 MD-X8H • Although HF waveform is normal and time indication is normal, no sound is not output. Check the IC2 pin 48 (EFLG). Usually, the number of pulses of flawless disc is 100 pulses/sec or less. Check the IC2 pin 37 and pin 40. Check IC501 and POWER AMP.

  • Page 112: Troubleshooting (Md Section)

    MD-X8H TROUBLE SHOOTING (MD SECTION) When MD fails to operate If the objective lens of optical pickup is contaminated, MD may fail to operate. At first, clean the objective lens to check playback operation. If MD fails persistently to operate, perform checks as follows. If dust or foreign substance is accumulated on the pickup lens, playback is disturbed and indication of TOC (content of tracks) may be disabled.
  • Page 113 MD-X8H • Disc loading is not normal. Is disc loaded when it is inserted? Check CNP1601 and SW1956. Is the pin 4 of CNP1601 set to L state? Is change observed on the pin 23 or 24 of IC1601? Check IC1401. Is change observed on the pin 30 or 31 of IC1601? Check CNP1604 and IC1601.
  • Page 114 MD-X8H • Normal playback When it has been confirmed that EEPROM value is normal in the TEST mode Is initialization performed normally when high reflection disc is Does the playback time display advance? played back? Check IC1201 Does disc rotate normally? Is lead-in switch turned on in the TEST mode when the pickup is on the innermost periphery (Is the pin 6 of OC1401 on L level?) Check SW1953, mechanism switch PWB soldering joint, and...
  • Page 115 MD-X8H • Record and playback operation Insert the low reflection disc, and after verifying the audio output in the normal mode playback set the record/playback TEST mode Recording from start address cannot be performed. Check whether the disc is record-prohibited. Is RF waveform output to the pin 1 IC1201 or TP1274 when playback is performed after recording? Does the level of pins 3 and 26,39 of IC1401 and the pins 9...
  • Page 116 MD-X8H • Disc motor fails to run Check soldering joint and parts of pins 24 and 25 of IC1201, and Does waveform appear on the pins 24 and 25 of IC1201 in the peripheral circuit. TEST mode focus gain coarse adjustment step? Does waveform appear on the pins 34 and 35 of IC1601, pins Check soldering joint of PWB of completed IC1601 and CNP1601 1 and 2 of CNP1603?

  • Page 117: Function Table Of Ic

    MD-X8H FUNCTION TABLE OF IC IC901 RH-iX2679AFZZ:System Control Micon (iX2679AF) (1/3) Port Name Input/Output Pin No. Terminal Name Function RESET Output Reset signal for MD microcomputer S-ID Output Track mark signal and MD ON/OF control signal for MD LOAD Input MD loading switch detection DISC IN = H Output Connection of crystal for main system clock oscillation...
  • Page 118 MD-X8H IC901 RH-iX2679AFZZ:System Control Micon(iX2679AF) (2/3) Port Name Input/Output Pin No. Terminal Name Function TRAY SW-A P124 Input Main tray OPEN completion detection switch input H: OPEN completion state when SW is OFF. L: Other state when SW is ON. This switch provides the CLOSE function when the tray lid is pressed.
  • Page 119 MD-X8H IC901 RH-iX2679AFZZ:System Control Micon(iX2679AF) (3/3) Port Name Input/Output Pin No. Terminal Name Function COIN Output Serial output of command data to CD DSP CQCK SCK0 Output Serial clock output to CD DSP Output Reset output to CD DSP element Input Standby input of sub-code Q output Input...
  • Page 120 MD-X8H IC901 RH-iX2679AFZZ:System Control Micon(iX2679AF) MIC detection and DSTB port replacement (EX MD) SW1 DUBB MODE (EX MD) SW2 STOP DSTB input must be through INTP6 interruption port. (EX MD) SW3 SKIP +1 P06->INTP6; MIC detection -> (MD)DST (EX MD) SW4 SKIP +10 Change to input port (EX MD) SW5 PLAY NORMAL P23;...
  • Page 121 MD-X8H IC1101 VHiiR3R55//-1:RF Signal Processor (IR3R55) Function Terminal Name Pin No. RF signal input terminal 1 Input of RF signal output of pickup RF signal input terminal 2 Input of RF signal output of pickup RF signal input terminal 3 Input of RF signal output of pickup RF signal input terminal 4 Input of RF signal output of pickup REFI Reference voltage amp.
  • Page 122 MD-X8H IC1201 VHiLR37648/-1:ENDEC (LR37648) (1/2) Function Terminal Name Input/Output Pin No. EFMMON Output EFM monitor output AVCC — Analog power EFMI Input EFM signal input from RF amp. AGND — Analog GND Input Focus error signal A Input Tracking error signal E Input Track cross signal Input...
  • Page 123 MD-X8H IC1201 VHiLR37648/-1:ENDEC (LR37648) (2/2) Function Terminal Name Input/Output Pin No. TESO1 Output PLLLR. Microcomputer extension output port 2 in case of selection TESO3 In/Output PLLOSC. Microcomputer extension output port 3 in case of selection TEST4 In/Output EXTCLK. Microcomputer extension output port 4 in case of selection CDDATA In/Output High speed dubbing CD data input.
  • Page 124 MD-X8H IC1401 RX-iX0227AWZZ:MD System Micon Control (IX0227AW) (1/2) Function Terminal Name Input/Output Pin No. P96/ANEX1 Output Input/Output it port P96 P95/ANEX0 Output Input/Output it port P96 P94/DA1 Output LDVAR (laser power adjustment output) P93/DA0 Output ADJS (for automatic adjustment step check) P92/TB2 Output Input/Output it port P92...
  • Page 125 MD-X8H IC1401 RX-iX0227AWZZ:MD System Micon Control (IX0227AW) (2/2) Function Terminal Name Input/Output Pin No. P42/A18 In/Output SYS D2 (data bus 2) P41/A17 In/Output SYS D1 (data bus 1) P40/A16 In/Output SYS D0 (data bus 0) P37/A15 Output Input/Output it port P37 P36/A14 Output Input/Output it port P36...

  • Page 126: Wiring Of Primarily Supply Leads (For Uk Only)

    MD-X8H IC1101 VHiiR3R55//-1:RF Signal Processor IC1201 VHiLR37648/-1:ENDEC (LR37648) (IR3R55) 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 ADIPI ADIPO DIFF DIFF ADLPFO EFMO ADIP TOTMON PLCK...

  • Page 127: Rds Operation

    MD-X8H RDS OPERATION 1. RDS Function ASPM STATION NAME PTY SEARCH Select and search (18 kind items) by cyclic NEWS-AFFAIRS ------ OTHER M - ALARM - TP - TA PTY(31) EON TI (TA) STAND-BY MODE Select and stand-by (17 kind items) by cyclic NEWS-AFFAIRS ------ OTHER M - ALARM - TI EON-PTY EON-TI/PTY...
  • Page 128 MD-X8H – 92 –...
  • Page 129 MD-X8H • ASPM SCAN: 87.50MHz → 108.00 MHz. • Only RDS signal is memorized by ASPM because RDS signal has PI code and is suitable and convenient for ASPM operation. ASPM Comparing field strength, only one strongest RDS station is memorized of all stations (repeater relay stations) that have same PI code.
  • Page 130 MD-X8H EON summary notice for reference 1. EON-TI/PTY EON stand-by can be set, only when EON ind. lights up. While EON ind. goes out (NO EON STATION), EON stand-by can't be set. If the EON button is pressed, then “NO EON” is indication the display. 2.
  • Page 131 “HOW TO ORDER REPLACEMENT PARTS” To have your order filled promptly and correctly, please furnish the For U.S.A. only following information. Contact your nearest SHARP Parts Distributor to order. 1. MODEL NUMBER 2. REF. No. 3. PART NO. 4. DESCRIPTION For location of SHARP Parts Distributor, Please call Toll-Free;...
  • Page 132 MD-X8H PRICE PRICE PART CODE DESCRIPTION PARTS CODE DESCRIPTION RANK RANK INTEGRATED CIRCUITS Q840 VSKTC3199GR-1 AB Silicon,NPN,KTC3199 GR Q841 VS2SD2012//-1 AD Silicon,NPN,2SD2012 Q850 VSKTC3199GR-1 AB Silicon,NPN,KTC3199 GR VHILA9241M/-1 AS Servo Amp.,LA9241M VHILC78623D-1 AY Servo/Signal Control,LC78623D Q851 VS2SD2012//-1 AD Silicon,NPN,2SD2012 Q860 VSKTC3199GR-1 AB Silicon,NPN,KTC3199 GR VHIM56748FP-1...
  • Page 133 MD-X8H PRICE PRICE PART CODE DESCRIPTION PARTS CODE DESCRIPTION RANK RANK VCCSMN1HL270J AA 27 pF,50V TRANSFORMERS AA 0.001 µF,50V VCKYMN1HB102K J AA 0.033 µF,16V VCTYPA1CX333K AB 0.1 µF,50V,Electrolytic T302 RCILZ0014AWZZ AL AM Antenna RC-EZY104AF1H AB 220 µF,6.3V,Electrolytic T351 RCILI0011AWZZ AD AM IF RC-EZY227AF0J AA 0.01 µF,16V T801...
  • Page 134 MD-X8H PRICE PRICE PART CODE DESCRIPTION PARTS CODE DESCRIPTION RANK RANK AA 0.018 µF,16V AB 3.3 µF,50V,Electrolytic C373,374 VCTYPA1CX183K C609 RC-GZA335AF1H AB 3.3 µF,50V,Electrolytic AB 10 µF,50V,Electrolytic C375 RC-GZA335AF1H C611 RC-GZA106AF1H AA 0.022 µF,25V AA 0.022 µF,25V C376 VCTYMN1EF223Z C612,613 VCTYMN1EF223Z AB 10 µF,16V,Electrolytic AB 10 µF,50V,Electrolytic...
  • Page 135 MD-X8H PRICE PRICE PART CODE DESCRIPTION PARTS CODE DESCRIPTION RANK RANK AB 0.047 µF,50V AC 0.47 µF,16V C945 VCKYPA1HF473Z C1953 VCKYTV1CB474K C946,947 VCCSPA1HL470J AA 47 pF,50V C1954 VCCCCY1HH150J AA 15 pF (CH),50V AB 100 µF,16V,Electrolytic AA 0.047 µF,16V C948 RC-GZA107AF1C C1955 VCKYCY1CB473K AB 0.047 µF,50V...
  • Page 136 MD-X8H PRICE PRICE PART CODE DESCRIPTION PARTS CODE DESCRIPTION RANK RANK VRD-MN2BD102J AA 1 kohm,1/8W R380 VRD-MN2BD152J AA 1.5 kohms,1/8W VRD-MN2BD221J AA 220 ohms,1/8W R381 VRD-MN2BD103J AA 10 kohm,1/8W R62~65 VRD-MN2BD823J AA 82 kohms,1/8W R382 VRD-ST2EE151J AA 150 ohms,1/4W R66,67 VRD-MN2BD683J AA 68 kohms,1/8W R383~385...
  • Page 137 MD-X8H PRICE PRICE DESCRIPTION PARTS CODE DESCRIPTION PART CODE RANK RANK R640 VRD-MN2BD331J AA 330 ohms,1/8W R911 VRN-RT2CK272F AA 2.7 kohms,1/6W,±1%,Metal Film R642 VRD-MN2BD331J AA 330 ohms,1/8W R912 VRN-RT2CK222F AA 2.2 kohms,1/6W,±1%,Metal Film R643 VRD-MN2BD272J AA 2.7 kohms,1/8W R913~916 VRD-MN2BD562J AA 5.6 kohms,1/8W R644,645 VRD-MN2BD331J...
  • Page 138 MD-X8H PRICE PRICE PART CODE DESCRIPTION PARTS CODE DESCRIPTION RANK RANK R1072~1076 VRD-ST2CD102J AA 1 kohm,1/6W R1668,1669 VRS-CY1JB682J AA 6.8 kohms,1/16W R1077 VRD-ST2CD223J AA 22 kohms,1/6W R1701 VRS-CY1JB105J AA 1 Mohm,1/16W R1080 VRD-ST2CD222J AA 2.2 kohms,1/6W R1702 VRS-CY1JB684J AA 680 kohms,1/16W R1083~1086 VRD-ST2CD273J AA 27 kohms,1/6W...
  • Page 139 MD-X8H PRICE PRICE DESCRIPTION PARTS CODE DESCRIPTION PART CODE RANK RANK CNP701 QCNCW679HAFZZ J AC Socket,8Pin SW705 QSW-K0005AWZZ J AC Switch,Key Type [MD Record] CNP721 QCNCW679DAFZZ J AE Socket,4Pin SW706 QSW-K0005AWZZ J AC Switch,Key Type [MD Eject] CNP741 92LCONE-2P5268 AB Plug,2Pin SW707 QSW-K0005AWZZ J AC Switch,Key Type...
  • Page 140 MD-X8H PRICE PRICE DESCRIPTION PART CODE PARTS CODE DESCRIPTION RANK RANK MSPRP0017AWFJ J AB Spring,Drive Shaft PGIDM0019AWZZ AE Holder,Stabilizer MSPRT1566AFFJ AB Spring,Roller LHLDM1008AWZZ J AD Stabilizer NGERH0066AWZZ J AC Gear,Loading (B) PGIDM0017AWZZ AC Guide,Mechanism Holder NGERH0067AWZZ J AC Gear,Drive GCOVA1152AWZZ J AL Tray,Disc Guide NGERH0068AWZZ J AC Gear,Loading (A)
  • Page 141 MD-X8H PRICE PRICE PART CODE DESCRIPTION PARTS CODE DESCRIPTION RANK RANK GITAR0272AWSA AS Rear Panel [For Europe] SP3,4 VSP0025TB378A BD Tweeter AH 3.3 µF,100V,Film Capacitor GITAR0275AWSA AS Rear Panel [For UK] 92L293-0029 HDECQ0192AWSA J AG Panel,Display ACCESSORIES/PACKING PARTS HDECQ0193AWSA J AE Holder,Display Panel PSHET0009AWZZ AK Sheet,Display...

  • Page 142: 606X3

    MD-X8H CNS1903 SW1956 PWB-H SW1953 1952A/B SW1955 SW1954 603x2 FW1901 CNS1904 603x2 PWB-G 612x4 M902 M903 M901 606x3 Figure 11 MD MECHANISM EXPLODED VIEW – 11 –...
  • Page 143 MD-X8H 306-2 306-1 306-3 703x2 M701 M702 305x2 SW702A PWB-D Figure 12 CD MECHANISM EXPLODED VIEW – 12 –...
  • Page 144 MD-X8H CD Mechanism 805x4 803x2 804x3 104 105 801x2 111x2 110x2 108x3 108x3 SWB101 PWB-F ~104 MOB1 108x3 123x4 MOB2 80mm Figure 13 CHANGER MECHANISM EXPLODED VIEW – 13 –...
  • Page 145 MD-X8H PWB-B3 MD Mechanism Unit 610x2 602x2 M971 611x5 604x6 PWB-C4 606x2 PWB-C3 604x3 261x2 601x2 263x2 609x2 262x2 PWB-C6 602x2 604x7 604x2 JOG701 604x10 PWB-C5 LCD751 611x2 PWB-C1 611x2 PWB-C2 604x2 603x2 201-17 201-11 201-19 201-14 Silicon 201-12 617x2 Grease 201-13 615x3...
  • Page 146 MD-X8H TWEETER SP3 (L-CH) SP4 (R-CH) 3.3µF, 100V, Film Capacitor WOOFER SP1 (L-CH) SP2 (R-CH) 912x2 SPEAKER TERMINAL (905) SP3 (L-CH) SP4 (R-CH) 911x4 910x4 906x4 TWEETER SP3 (L-CH) SP4 (R-CH) SPEAKER SP1 (L-CH) TERMINAL WOOFER (905) SP2 (R-CH) SP1 (L-CH) 910x4 SP2 (R-CH) Figure 15 SPEAKER EXPLODED VIEW...

  • Page 147: Packing Of The Set (For Uk Only)

    MD-X8H PACKING OF THE SET (FOR UK ONLY) 11.Label, Serial No. 92LLABL372C 1.Polyethylene Bag, Unit SSAKH0022AWZZ 12.Label, Bar Code TLABE0196AWZZ 2.Packing Add., Left/Right SPAKA0133AWZZ 13.Label, VM No. DFZKN0002AW01 3.Remote Control RRMCG0115AWSA 14.REG Card 92LCARD1751A 4.Pad, Remote Control SPAKF0001AWZZ 15.Polyethylene Bag, Plug 92LBAG1770A 5.AM Loop Antenna QANTL0001AWZZ...
  • Page 148 MD-X8H © COPYRIGHT 1997 BY SHARP COPORATION ALL RIGHTS RESERVED. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any from or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher.

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