Pioneer AVD-505 Service Manual - Page 1

Service Manual • AVD-505/US COLOR DISPLAY ORDER NO. CRT2239 COLOR DISPLAY AVD-505 US,EW - Precautions on Safety for Replacement of Backlight • High voltage is generated in the inverter when the power is supplied to the system. To avoid an electric shock, reconfirm that the power switch is set to OFF before starting operation. • The fluorescent tube and high-voltage parts have high temperature immediately after the power switch of the main unit is set to OFF. To avoid burning your hand or similar accidents, wait awhile after turning the power to OFF, then start operation. • High voltage may be charged to the inverter immediately after the power switch of the main unit is set to OFF. Wait awhile after turning the power to OFF, then start operation. • In some cases, the fluorescent tube of backlight may be damaged. Take adequate caution for injury during operation. CONTENTS 1. SAFETY INFORMATION 2 2. EXPLODED VIEWS AND PARTS LIST 2 3. SCHEMATIC DIAGRAM 6 4. PCB CONNECTION DIAGRAM 14 5. ELECTRICAL PARTS LIST 19 6. ADJUSTMENT 23 7. GENERAL INFORMATION 25 7.1 IC 25 7.2 DISASSEMBLY 28 7.3 BLOCK DIAGRAM 29 8. OPERATIONS AND SPECIFICATIONS 30 PIONEER ELECTRONIC 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. 501 Orchard Road, #10-00, Wheelock Place, Singapore 23880 C PIONEER ELECTRONIC CORPORATION 1998 K-ZZD. JULY 1998 Printed in Japan