Lexicon-PCM90-dr-sbeco96071700 电路图 维修手册.pdf

3 Oak Park Bedford, MA 01730 Tel (781) 280-0300, Fax (781) 280-0499 email: PCM 80 & PCM90 SERVICE BULLETIN Please contact LEXICON CUSTOMER SERVICE with any questions. Sbpcm80_960707-00.doc 1 SUBJECT: PCM80 & PCM90 Power Supply REFERENCE: ECO960717-00 DISTRIBUTION: International Pro-Product Distributor Service Centers, Customer Service, Repair CORRECTIVE ACTION: When replacing an old power supply with the new power supply, a new cable must be also be installed. WARNING This modification should be performed by qualified technical personnel only. Damage caused by performing this modification may void the manufacturers warranty or standard repair policies. CAUTION Electrostatic Discharge (ESD) Precautions The following practices minimize possible damage to ICs resulting from electrostatic discharge or improper insertion. Keep parts in original containers until ready for use. Avoid having plastic, vinyl or styrofoam in the work area. Wear a properly installed anti-static wrist-strap. Discharge personal static before handling devices. Remove and insert boards with care. When removing boards, handle only by non-conductive surfaces and never touch open-edge connectors except at a static-free workstation.* Minimize handling of ICs. Handle each IC by its body. Do not slide ICs or boards over any surface. Insert ICs with the proper orientation, and watch for bent pins on ICs. Use anti-static containers for handling and transport. * To make a plastic-laminated workbench anti-static, wash with a solution of Lux liquid detergent, and allow to dry without rinsing. INSTRUCTIONS: When replacing a power supply in a unit that was originally built with P/N 750- 09766 with a power supply, P/N 750-11396, the power supply cable must also be replaced. The new cable part number is 680-11709 and replaces 680-09756 RadioFans.CN 收音机爱 好者资料库