Kurzweil_PC2_Series_Service_Manual电路图.pdf

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1、 PC2 Series Service Manual 2004 All rights reserved. Kurzweil is a product line of Young Chang Co.; Kurzweil is a trademark of Young Chang Co. All other products and brand names are trademarks or registered trademarks of their respective companies. Product features and specifi cations are subject to

2、 change without notice. Part Number: 910395 Rev. A RadioFans.CN 收音机爱 好者资料库 ii IMPORTANT SAFETY B.Objects have fallen onto, or liquid has been spilled into the product; C.The product has been exposed to rain; D.The product does not appear to be operating normally or exhibits a marked change in perfor

3、mance; E.The product has been dropped, or the enclosure damaged. 12.Do not attempt to service the product beyond that described in the user maintenance instructions. All other servicing should be referred to qualifi ed service personnel. 13. WARNING: Do not place objects on the products power supply

4、 cord, or place the product in a position where anyone could trip over, walk on, or roll anything over cords of any type. Do not allow the product to rest on or be installed over cords of any type. Improper installations of this type create the possibility of a fi re hazard and/or personal injury. R

5、ADIO AND TELEVISION INTERFERENCE WARNING: Changes or modifi cations to this instrument not expressly approved by Young Chang could void your authority to operate the instrument. IMPORTANT: When connecting this product to accessories and/or other equipment use only high quality shielded cables. NOTE:

6、 This instrument has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the instrument is used in a commercial environment. This instrument ge

7、nerates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this instrument in a residential area is likely to cause harmful interference, in which case the user w

8、ill be required to correct the interference at his or her own expense. Changes and modifi cations not expressly approved by the manufacturer or registrant of this instrument can void the users authority to operate this instrument under Federal Communications Commission rules. In order to maintain co

9、mpliance with FCC regulations, shielded cables must be used with this instrument. Operation with unapproved equipment or unshielded cables is likely to result in harmful interference to radio and television reception. NOTICE This apparatus does not exceed the Class A limits for radio noise emissions

10、 from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications. AVIS Le present appareil numerique nemet pas de bruits radioelectriques depassant les limites applicables aux appareils numeriques de la class A prescrites dans le Reglement sur le bro

11、uillage radioelectrique edicte par le ministere des Communications du Canada. SAVE THESE INSTRUCTIONS The lightning flash with the arrowhead symbol, within an equilateral triangle is intended to alert the user to the presence of uninsulated dangerous voltage within the products enclosure that may be

12、 of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product. CAUTION RISK OF E

13、LECTRIC SHOCK DO NOT OPEN REFER SERVICING TO QUALIFIED SERVICE PERSONNEL NO USER SERVICEABLE PARTS INSIDE DO NOT REMOVE THE COVER CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, RadioFans.CN 收音机爱 好者资料库 iii Young Chang Distributors Contact the nearest Young Chang offi ce listed below to locate your lo

14、cal Young Chang/Kurzweil representative. A N D Music Corp. P.O. Box 99995 Lakewood, WA 98499-0995 Tel: (253) 589-3200 Fax: (253) 984-0245 Young Chang Akki Co., Ltd. 178-55 Gajwa-Dong Seo-Ku, Inchon Korea 404-250 Tel: 011-82-32-570-1380 Fax: 011-82-32-570-1218 Young Chang America, Inc. (Canadian Divi

15、sion) P.O. Box 61515 9350 Yonge Street Richmond Hill, Ontario Canada L4C 3N0 Tel: (905) 508-0531 Fax: (905) 508 1308 RadioFans.CN 收音机爱 好者资料库 Contents Young Chang Distributors.iii Chapter 1Introduction Models . 1-1 Notes, Cautions, Warnings. 1-1 PC2/PC2X. 1-2 PC2/PC2X Rear Panel. 1-2 Rear Panel Featu

16、res. 1-2 PC2/PC2X Front Panel. 1-3 Front Panel Features. 1-3 PC2R. 1-6 PC2R Rear Panel. 1-6 Rear Panel Features. 1-6 PC2R Front Panel. 1-6 Front Panel Features. 1-7 Chapter 2Diagnostics Diagnostic Tests. 2-1 Entering Diagnostics. 2-2 Diagnostic Test Modes. 2-2 Run One Test. 2-2 Run Burn-in. 2-3 Test

17、 Results. 2-3 Description of Tests. 2-4 ROM. 2-4 Read-write. 2-4 RAM. 2-4 MABEL. 2-4 LISA . 2-4 Sound ROM . 2-4 ZRAM. 2-5 MIDI. 2-5 LED. 2-5 PCX-1 ROM. 2-5 PCX-1 RW. 2-5 PCX-1 RAM. 2-5 PCX-1 MABEL. 2-6 PCX-1 SROM. 2-6 Chapter 3PC2R Disassembly/Assembly Introduction . 3-1 Cables, Connectors. 3-1 Flat

18、 Ribbon Cables. 3-1 Cable Routing. 3-1 Required Tools and Materials. 3-1 Opening the PC2R. 3-2 Kurzweil PC2 Series Service Manual Contents ii Removing the Top Cover. 3-2 Replacing the Top Cover. 3-2 Removing the Connector Board. 3-3 Replacing the Connector Board . 3-4 Removing the Polyphony Expansio

19、n Board (PCX-1). 3-5 Replacing the Polyphony Expansion Board (PCX-1). 3-5 Removing the Engine Board. 3-6 Replacing the Engine Board . 3-6 Front Panel Assembly. 3-8 Removing the Front Panel Assembly. 3-8 Replacing the Front Panel Assembly. 3-8 Removing the Front Panel Faceplate. 3-9 Replacing the Fro

20、nt Panel Faceplate. 3-9 Front Panel Boards. 3-9 Removing the Right Front Panel Board. 3-10 Replacing the Right Front Panel Board.3-11 Removing the LCD Board.3-11 Replacing the LCD Board . 3-12 Removing the Left Front Panel Board. 3-12 Replacing the Left Front Panel Board . 3-13 Removing the Headphone/Volume/Power Switch Board . 3-14 Replacing the Headphone/Volume/Power Switch Board. 3-14 Chapter 4PC2/PC2X Disassembly/Assembly Introduction .