TEKRAM TECHNOLOGY CO., LTD.
===========================

   DC-680, DC-680T

   +------------------------------------------------------------+
   |------------------------------------------------------------|
   | Data bus:         | 32-bit, VL-bus                         |
   |-------------------+----------------------------------------|
   | Size:             | Three/quarter-length, full-height card |
   |-------------------+----------------------------------------|
   | Hard drive        | Four IDE (AT) Interface drives         |
   | supported:        |                                        |
   |-------------------+----------------------------------------|
   | Floppy drives     | Two 360KB, 720KB, 1.2MB, or 1.44MB     |
   | supported:        | drives                                 |
   +------------------------------------------------------------+

<gopher://bitreich.org/I/th99/c/S-T/20472-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |                   Function                    |  Location  |
   |-----------------------------------------------+------------|
   | 40-pin IDE (AT) Interface connector - IDE-0   |    CN1     |
   |-----------------------------------------------+------------|
   | 40-pin IDE (AT) Interface connector - IDE-1   |    CN2     |
   |-----------------------------------------------+------------|
   | 34-pin control cable connector - floppy drive |    CN3     |
   |-----------------------------------------------+------------|
   | 4-pin connector - drive active LED            |    JP1     |
   |-----------------------------------------------+------------|
   | 4-pin connector - cache error speaker         |    JP2     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function               | Location  | Setting |
   |--------------------------------------+-----------+---------|
   |>> | IDE-0 damping resistor enabled   |   JDR0    |  open   |
   |---+----------------------------------+-----------+---------|
   |   | IDE-0 damping resistor disabled  |   JDR0    | closed  |
   |---+----------------------------------+-----------+---------|
   |>> | IDE-1 damping resistor enabled   |   JDR1    |  open   |
   |---+----------------------------------+-----------+---------|
   |   | IDE-1 damping resistor disabled  |   JDR1    | closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   | DRIVE ACTIVE LED ERROR CODES (IMMEDIATELY AFTER POWER-UP)  |
   |------------------------------------------------------------|
   |           Status           |           Function            |
   |----------------------------+-------------------------------|
   |      One short flash       |    No cache DRAM installed    |
   |----------------------------+-------------------------------|
   |     Two short flashes      |           CPU error           |
   |----------------------------+-------------------------------|
   |    Three short flashes     |          SRAM error           |
   |----------------------------+-------------------------------|
   |     Four short flashes     |          Timer error          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               MISCELLANEOUS TECHNICAL NOTES                |
   |------------------------------------------------------------|
   | Some versions of this board have two 512KB x 8 DRAM chips  |
   | mounted in place of Bank 0. In such a case the board will  |
   | work without additional memory. In all other cases a pair  |
   |  of 256KB, 1MB, or 4MB SIMM modules must be installed in   |
   |             Bank 0 for the board to function.              |
   |                                                            |
   | Jumpers JP3 and JP4 are factory-configured - do not alter. |
   +------------------------------------------------------------+