MECER CORPORATION

B-303

Card Type                 Sound Card
Chipset Controller        ESS Technologies, Inc. ES-688
I/O Options               CD audio(2), CD-ROM interface(3), line in, line
                          out, microphone in(2), SCSI interface, speaker
                          out
Maximum Dram              N/A

[Image]

                                CONNECTIONS

       Purpose           Location            Purpose           Location

  Speaker out               J1         Line out                  JP4

  Microphone in             J2         Panasonic CD-audio        JP5
                                       in

  Line in                   J3         Sony CD-audio in          JP10

  Panasonic CD-ROM          J6         Mitsumi CD-ROM            JP11
  interface                            interface

  Sony CD-ROM               J7         SCSI interface            JP13
  interface

  Microphone in             JP2

                        BASE I/O ADDRESS SELECTION

               Address                                 JP1

  »                220h                         Pins 2 & 3 closed

                   240h                         Pins 1 & 2 closed

                            INTERRUPT SELECTION

                 IRQ                                  JP7

  »                 7                          Pins 1 & 2 closed

                    5                          Pins 3 & 4 closed

                    9                                 Open

                    10                      Pins 1 & 2, 3 & 4 closed

                           DMA CHANNEL SELECTION

               Channel                                JP3

  »                 1                                 Open

                    3                          Pins 1 & 2 closed

                           CD-ROM TYPE SELECTION

                  Type                                  J5

  »               Panasonic                      Pins 1 & 2 closed

               Sony or Mitsumi                   Pins 2 & 3 closed

                         CD-ROM ADDRESS SELECTION

                Address                               JCP2

  »                300h                              Closed

                   340h                               Open

                           CD-ROM CONFIGURATION

                 Setting                               JCP1

  »                Enabled                            Closed

                  Disabled                             Open

         SCSI INTERRUPT SELECTION

         IRQ                 JP14

         11           Pins 2 & 4 closed

         12           Pins 1 & 3 closed