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Service Manual KEH-3910 Model No. CX-1011 Order No. CRT2406 KEH-3950/X1M/ES ORDER NO. CRT2421 HIGH POWER CASSETTE PLAYER WITH FM/AM TUNER KEH-3950 HIGH POWER CASSETTE PLAYER WITH FM/MW/LW TUNER X1M/ES X1M/EE - This service manual should be used together with the following manual(s): Mech. Module Remarks 3L Cassette Mech. Module:Circuit Description, Mech.Description, Disassembly CONTENTS 1. 2. 3. 4. 5. 6. SAFETY INFORMATION ...2 EXPLODED VIEWS AND PARTS LIST ...2 BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ...10 PCB CONNECTION DIAGRAM ...26 ELECTRICAL PARTS LIST ...36 ADJUSTMENT...43 7. GENERAL INFORMATION ...44 7.1 DISASSEMBLY ...44 7.2 PARTS ...45 7.2.1 IC...45 7.2.2 DISPLAY ...49 8. OPERATIONS AND SPECIFICATIONS...50 PIONEER CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS SERVICE INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A. PIONEER ELECTRONIC [EUROPE] N.V. Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936 C PIONEER CORPORATION 1999 K-ZZD. NOV. 1999 Printed in Japan KEH-3950,3910 1. SAFETY INFORMATION This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual. Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty. If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do so and refer the repair to a qualified service technician. 2. EXPLODED VIEWS AND PARTS LIST 2.1 PACKING(KEH-3950/X1M/ES) 7 8 5 6 10 3 11 9 16 2 17 4 1 15 14 12 13 NOTE: - Parts marked by "*" are generally unavailable because they are not in our Master Spare Parts List. - Screws adjacent to mark on the product are used for disassembly. - PACKING SECTION PARTS LIST Mark No. 1-1 1-2 1-3 2 3 4 5 6 7 8 Description Owner's Manual Installation Manual Polyethylene Bag Cord Assy Spring Screw Assy Screw Polyethylene Bag Screw Screw Part No. CRD3119 CRD3121 CEG1116 CDE6222 CBH1650 CEA2351 CBA1304 CEG-127 CRZ50P090FMC TRZ50P080FMC Mark No. Description * 9 Polyethylene Bag 10 Handle 11 Bush 12 Polyethylene Bag 13 Carton 14 15 16 17 Contain Box Protector Protector Case Assy Part No. CEG-158 CNC5395 CNV3930 CEG-162 CHG3846 CHL3846 CHP2243 CHP2244 CXB3520 * 2