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SC400 Revision 1 Troubleshooting Guide
EBT

Overview:
Possible causes of SC400 rev. 2 Audio Failures:
IRQ, DMA, ADDRESS CONFLICTS.
Poor connection between the sound card and slot 
or bad slot.
Incorrect connection of CD-ROM data cable or 
bad data cable.
Volume control on the back of the sound card is 
turned down.
Bad or Damaged sound card.
Jumper settings not at default.
Bad or Damaged speakers.

Procedure:
1: Remove all added hardware to insure there is 
no irq,dma or address conflicts.

If the system:
* Produces No sound but sound card is detected 
  begin with step 2.
* Produces sound but the CD-ROM drivers are not 
  loading or cdr101 errors
  begin with step 3.
* Does not detect the sound card begin with step 
  4.

2. If no sound is produced:
   A: check speaker connections, if amplified 
      check power indication lights, if not 
      amplified make sure speakers are turned 
      off, try Headphones.  B: Boot F5 or from 
      A and run SG3 test, Run all tests FM, 8bit 
      and 16bit.
   C: Check mixer settings sgp16tsr, alt + / to 
      activate mixer make sure all settings are 
      up if not adjust settings to the max then 
      save to eeprom and do a cold boot.
   D: Chkdsk /f or scandisk and delete and rein-
      stall software.
   E: If cmos has option for cache disable it.
   F: Check speaker amplification jumpers make 
      sure there at default.
   G: Reseat card in a different slot.

3: If produces sound but CD-ROM driver doesn't 
   load or cdr101:
   Note: If the driver in config.sys isn't 
   loading.
   A: Make sure they are using the correct 
      drivers, boot F8 and just load the
      CD-ROM driver, Try a different one for 
      ex. if there using sgcdu.sys try cr56x.
      sys, Run instatcd. 
   B: Run sgp16fig and make sure the correct 
      CD-ROM drive is selected.
   C: Make sure there is power to the CD-ROM 
      drive, if there is, reseat the data cable 
      or if possible try different 40 pin data 
      cable. Make sure it is plugged to the 
      correct CD-ROM interface connection.

   Note: If getting cdr101 errors.
   A: Check to see if the CD is spinning by 
      placing CD on tray; checking orientation, 
      closing tray waiting for light to come on 
      and go off, ejecting the tray to see if it 
      moved from the orientation that you placed 
      it in. , if not remove data cable from back 
      of CD-ROM and loosen mounting screws.
   B: If it spins reseat data cable or try dif-
      ferent data cable, add /m:20 to the end of 
      the MSCDEX.EXE line in AUTOEXEC.BAT.


4: If the sound card is not detected.
   A: Remove CD data cable from sound card if 
      there is one.
   B: Try card in a different slot a couple if 
      necessary.
   C: Remove all additional cards that might 
      cause conflicts. For example:
      Another sound card, scanner  card, TV card, 
      joystick card etc. 
   D: If possible try card in a different 
      system.
   E: Try changing irq and address settings.




If Above procedures fail press transfer key and 
dial 2525 for RMA.


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