MBF COMPANY CONFIDENTIAL FIELD INFORMATION BULLETIN SERVICE GROUP(S): MICRO MFG: COMPAQ NACS TYPE(S): 5700,5702,9498,9500 MFG. MODEL(S): DESKPRO,PORTABLE CATEGORY: CPU DESC: DESKTOP COMPUTER *** TABLE OF CONTENTS AS OF 12/19/90 *** FIB 00001.General Information...............................(Text Inco05/06/88 FIB 00002.POWER SUPPLY FAILURES.......................................07/01/87 CPU-COMPAQ-DESKPRO,PORTABLE-------------------------Table Of Contents Pg01 of 01 FIB 00002 07/01/87 *** POWER SUPPLY FAILURES *** SYMPTOM: System shuts down for unknown reasons. PROBLEM DETERMINATION: Check all voltages coming from the supply. If the supply appears good then check the seating of all PCBs and cables, including the AC power cord. FIX: PCB's and all cables including the power cord should be fully inserted into their connectors correctly to insure proper loading of the switching power supply. Poor connections can cause shutdown and possible shorting out of power supply components. ORIGINATOR: J. PERLETTA CPU-COMPAQ-DESKPRO,PORTABLE-------------------------FIB002 Pg001