Service Manuals, User Guides, Schematic Diagrams or docs for : Dell Monitor GDM-17SE2T Shutdown Due To Quick Power Off,On or Intermittent Power On. (C_P0111)

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Shutdown Due To Quick Power Off,On or Intermittent Power On. (C_P0111)


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                                  Computer Monitors                                              CSI-111
                                  Service Bulletin
                                  Sony Service Company - Technical Services
                                  A Division of Sony Electronics Inc.
                                  Sony Drive, Park Ridge, New Jersey 07656


Model:      CPD-20SF2, GDM-17SE2T                                                 No.     111R2
Subject: Shutdown Due To Quick Power Off/On or                                    Date: August 9, 1996
         Intermittent Power On.


Symptom:
 (211)         If rapidly pressing the Power Switch Off/On causes the monitor to go into Shutdown
               mode. Or the Power ON mode requires pressing the Power Button multiple times.
               CPD-20SF2 effected S/N range is 2000001 to 2000500. GDM-17SE2 effected D
               Board suffix is -11, -12, -13, -21, -22, -23.



Solution:      Then change HV Over detection circuits to correct HV level detection sensivity.
               Please make circuit corrections on the D Board according to the following procedure.

               Note: The parts listed below are needed to complete this procedure.




                               REF         DESCRIPTION                    PART NUMBER
                              R1417      330 OHM 5% 1/4W                   1-215-409-00
                              R492       47K OHM 5% 1/4W                   1-249-437-11


               1. Add new component R1417 between IC401 Pin 8 and D417. Cut R1417 leads to
               3/8'' length. Lift D417 Anode lead from the D Board solder pad. Solder R1417 leads
               to D417 Anode lead and former D417 solder pad. See illustration below.

               2. Replace R492 10K Ohm part with 47 K Ohm. See illustration below.




                                                                                                         Cont.

Reference: TM: DPCD96-002, DPCD96-007                                                            PRINTED IN USA

                                              PRINTED ON RECYCLED PAPER
Computer Monitors Service Bulletin No. 111R2




                 The circuit correction procedure is completed.



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