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Service AUDIO Manual SELECT EQ SFEQ ORDER NO. CRT2771 DEH-P440/XN/UC MULTI-CD CONTROL HIGH POWER CD PLAYRE WITH FM/AM TUNER DEH-P440 /XN/UC DEH-P4400 /XN/UC DEH-P440/XN/UC /XN/UC This service manual should be used together with the following manual(s): Model No. Order No. Mech.Module Remarks CX-977 CRT2624 S9 CD Mech. Module:Circuit Description,Mech. Description,Disassembly CONTENTS 1.SAFETY INFORMATION . . . . . . . . . . . . . . . . . . . . 3 7.1.1 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . .48 2.EXPLODED VIEWS AND PARTS LIST . . . . . . . . . . . . . 4 7.1.2 CONNECTOR FUNCTION DESCRIPTION . . . . .51 3.BLOCK DIAGRAM AND SCHEMATIC . . . . . . . . . . . . . 12 7.2 PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52 4.PCB CONNECTION DIAGRAM . . . . . . . . . . . . . . . . . . 26 7.2.1 IC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52 5.ELECTRICAL PARTS LIST . . . . . . . . . . . . . . . . . . . . . . 34 7.2.2 DISPLAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62 6.ADJUSTMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 7.3 OPERATION FLOW CHART . . . . . . . . . . . . . . . . . . .63 7.GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . 48 7.4CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64 7.1 DIAGNOSIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 8. OPERATIONS AND SPECIFICATIONS . . . . . . . . . . . .65 For details, refer to "Important symbols for good services" on the next page. PIONEER CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS (USA) INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A. PIONEER EUROPE NV Haven 1087