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Sharp MD-X7 Service Manual

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MD-X7

MD-X7

SERVICE MANUAL

SHARP CORPORATION

No. SX787MDX7////

This document has been published to be used

for after sales service only.

The contents are subject to change without notice.

This new model MD-X7 has almost the same structure as the

former model MD-X8 except for some outer parts, Keyboard

Input/PC control circuit, and so only these parts are here described.

When servicing the MD-X7, please refer to the already issued

service manual for MD-X8 (S0778MDX8////) as well as this

service manual.

DIFFERENCE BETWEEN MD-X8 AND MD-X7

MARK: SPARE PARTS-DELIVERY SECTION

• 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.

MD-X7MD-X8

PART NO. PART NO.

DESCRIPTIONREF.

NO.

CODE

INTEGRATED CIRCUITS

IC440 VHiNJM4558D-1 J Not used Input Selector, NJM4558D —

IC602~604 VHGPC910///-1 J Not used PC Controll, PC910 —

IC605 VHiTC7WU04F-1 J Not used PC Controll, TC7WU04F —

IC901 RH-iX2679AFZZ J RH-iX2717AFZZ J System Control Micon, IX2717AF BH

US and foreign patents licensed from Dolby Laboratories Licensing

Corporation.

TRANSISTORS

Q603 VSKTA1266GR-1 J Not used Silicon, PNP, KTA1266 GR —

Q702 VSKRA107M//-1 J Not used Digital, PNP, KRA107 M —

COILS

L411~413 VP-DH2R2M0000 J Not used 2.2 µH, Choke —

CAPACITORS

C410 VCTYMN1EF223Z J Not used 0.022 µF, 25V —

C411, 412 VCTYMN1CX122K J Not used 0.0012 µF, 16V —

C437, 438 VCTYMN1CX822K J Not used 0.0082 µF, 16V —

C439, 440 VCTYMN1CX222K J Not used 0.0022 µF, 16V —

C441, 442 VCKYMN1HB471K J Not used 470 pF, 50V —

C443, 444 RC-GZA226AF1H J Not used 22 µF, 50V, Electrolytic —

C445, 446 RC-GZA225AF1H J Not used 2.2 µF, 50V, Electrolytic —

C448, 449 VCTYMN1EF223Z J Not used 0.022 µF, 25V —

C639 VCTYMN1EF223Z J Not used 0.022 µF, 25V —

C640, 641 VCQYKA1HM104J J Not used 0.1 µF, 50V, Mylar —

C642 VCTYMN1EF223Z J Not used 0.022 µF, 25V —

C650 VCQYKA1HM104J J Not used 0.1 µF, 50V, Mylar —

RESISTORS

R415, 416 VRD-MN2BD272J J Not used 2.7 kohms, 1/8W —

R417, 418 VRD-MN2BD473J J Not used 47 kohms, 1/8W —

R435, 436 VRD-MN2BD394J J Not used 390 kohms, 1/8W —

R437, 438 VRD-MN2BD333J J Not used 33 kohms, 1/8W —

R439, 440 VRD-MN2BD392J J Not used 3.9 kohms, 1/8W —

R441, 442 VRD-MN2BD102J J Not used 1 kohm, 1/8W —

R445, 446 VRD-ST2EE331J J Not used 330 ohms, 1/4W —

R447, 448 VRD-MN2BD102J J Not used 1 kohm, 1/8W —

DIODE

ZD601 VHEUZ5R1BSB-1 J Not used Zener, 5.1V, UZ5.1BSB —