SONY CORPORATION

OPA-4741

Card Type               CD-ROM interface card
Chip Set                Unidentified
Maximum Onboard Memory  Unidentified
I/O Options             IDE interface, audio in - CD-ROM, headphone jack
Hard Drives supported   None
Floppy drives supported None
Data Bus                8-bit ISA
Card Size               Half-length

[Image]

                                CONNECTIONS

          Function             Label           Function             Label

  IDE interface - internal     CN1     Headphone jack               CN3

  Audio in - CD-ROM            CN2     IDE interface - external     CN4

                        USER CONFIGURABLE SETTINGS

                 Function                    Label         Position

  »   Factory configured - do not alter      JP1/C       Unidentified

  »   Factory configured - do not alter      JP1/C       Unidentified

  »   Factory configured - do not alter      JP2/D       Unidentified

  »   Factory configured - do not alter      JP3/D       Unidentified

  »   Factory configured - do not alter      JP4/A       Unidentified
      (IRQ interrupt - not used)

  »   Factory configured - do not alter      JP4/B       Unidentified
      (IRQ interrupt - not used)

  »   Factory configured - do not alter      JP4/C       Unidentified
      (IRQ interrupt - not used)

  »   Factory configured - do not alter      JP4/D       Unidentified
      (IRQ interrupt - not used)

                           DMA CHANNEL SELECTION

  Channel     JP2/A     JP2/B      JP2/C     JP3/A      JP3/B     JP3/C

       1     Closed      Open      Open      Closed     Open       Open

       2      Open      Closed     Open       Open     Closed      Open

  »    3      Open       Open     Closed      Open      Open      Closed

                        BASE I/O ADDRESS SELECTION

          Setting                   JP1/A                   JP1/B

              320h                  Closed                 Closed

              330h                  Closed                  Open

  »           340h                   Open                  Closed

              360h                   Open                   Open

                       MISCELLANEOUS TECHNICAL NOTES

  OPA-4741 Sony CD-ROM interface kit is compatible with Sony CDU 31A and
  Sony CDU 33A CD-ROM drives.