Dec 282017
 
Text file from NEC BBS about troubleshooting installation for NEC CD ROMs.
File TSCDROM.ZIP from The Programmer’s Corner in
Category Tutorials + Patches
Text file from NEC BBS about troubleshooting installation for NEC CD ROMs.
File Name File Size Zip Size Zip Type
TSCDROM.TXT 7134 2189 deflated

Download File TSCDROM.ZIP Here

Contents of the TSCDROM.TXT file


CD Rom Basic RE-INSTALLATION information:

1.) Make sure that there is a C:\SCSI subdirectory on the bootup hard
drive.

There should be at least these files in that directory:

NECCDR.SYS
MSCDEX.EXE
SCSITEST.EXE

------------------------------------------------------------------------
If you don't have these files you should get the latest version of the
drivers from our BBS at 1-508-635-6328 (1200/2400/9600, 8,n,1).

AT Type machines File Needed
---------------- -----------
SCSI Card with 6 dip switches - CD_T100.EXE
SCSI Card with 8 dip switches - CD_T128.EXE

PS/2 Micro Channel machines
----------------------------
Full length SCSI card - CD_T200.EXE
Half length SCSI card - CD_T228.EXE

------------------------------------------------------------------------
HARDWARE SETUP
-------------------

Hardware setup for the T-100 SCSI Card (6 Dip Switches).

Dip Switch Function (Default Setting) Switch Setting
---------- -------------------------- --------------

1 Boot ROM Enable/Disable (Disabled) Off
2 Boot ROM Address (C8000H) On
3 Boot ROM Address (C8000H) On
4 Parity Enable/Disable (Disabled) Off
5 SCSI Card Address (328H) On
6 SCSI Card Address (328H) Off

SWITCH OPTIONS

Switch Options
-------- -----------

1 On - Boot ROM Enabled
Off - Boot ROM Disabled


SW2 SW3 Boot ROM Address
--- --- ----------------

ON ON C8000H
ON OFF CA000H
OFF ON CC000H
OFF OFF CE000H


4 On - Parity Checking Enabled
Off - Parity Checking Disabled

SW5 SW6 I/O Address for SCSI Card
--- --- -------------------------

ON ON 320H
ON OFF 328H
OFF ON 324H
OFF OFF 32CH



JUMPER SETTINGS (block of pins at bottom of card)
--------------------------------------------------

(Pin Numbering)

2 12
o o o o o o
o o o o o o -------> SCSI connector (bracket)
1 11


Pins Connected Function
--------------- -------------

7-9 and 8-10 DMA Channel 1

9-11 and 10-12 DMA Channel 3

No Pins Jumpered NO DMA Operation



2-4 Interrupt IRQ 5

1-3 Interrupt IRQ 3

4-6 Interrupt IRQ 7

3-5 Interrupt IRQ 6



------------------------------------------------------------------------
HARDWARE SETUP
-------------------

Hardware setup for the T-128 SCSI Card (8 Dip Switches).

Dip Switch Function (Default Setting) Switch Setting
----------- ----------------------------- --------------

1 Reserved (Disabled) Off
2 Reserved (Disabled) Off
3 Reserved (Disabled) Off
4 Reserved (Disabled) Off
5 Boot ROM Enable/ (Disable) Off
6 Zero Wait-State Operation (Disable) Off
7 SCSI Card Address Off
8 SCSI Card Address On




SWITCH OPTIONS

Switch Options
-------- -----------


5 Off - Boot ROM Disabled
On - Boot ROM Enabled

6 Off - Zero Wait-State Operation Disabled (Set for XT)
On - Zero Wait-State Operation Enabled
(Only for machines running w/ zero wait-states)


SW7 SW8 Memory Address for SCSI Card
--- --- ----------------------------

OFF OFF CC00h
OFF ON C800h
ON OFF DC00h
ON ON D800h





-------------------------------------------------------------------------
SOFTWARE SETUP
--------------------

2.) First run SCSITEST which will test the hardware installation and
integrity. Run the TEST HARDWARE selection. It should follow through
several menus and alert you to any potential problems.

3.) Next make sure that the following statements are the first and second
lines in your CONFIG.SYS file in the root directory on your hard drive.

DEVICE=C:\SCSI\NECCDR.SYS /D:NECCD
LASTDRIVE=Z

4.) Finally for standard setup be sure that the following statement is the
first line in your AUTOEXEC.BAT file in the root directory on your hard

drive.

C:\SCSI\MSCDEX /D:NECCD /l:l

Your CD-ROM drive will now be setup as drive L.
If everything is setup correctly this should rectify any problems.


-------------------------------------------------------------------------
ERROR MESSAGES
-------------------

If you encounter a CDR 101 error this is a designation that there is a
timing problem.

1.) Verify that the cable is secure at the PC and at the CD-Reader.

2.) If you have the termination block in the back of the CDR77 or CDR72,
remove it.

3.) If you do not have the termination block in the back of the CDR77 or
CDR72, put it in.

4.) Try placing the card in another bus slot in the PC.

5.) If the machine is running in a TURBO mode, try a slower clock speed.

6.) Make sure the CD-Rom is in right-side-up.

7.) Make sure the dip switch settings on the SCSI card are in the correct
position.


If you encounter a CDR 103 - Disk not High Sierra or ISO 9660 format error,
this is a designation that something in the system is overwriting the
memory map of the SCSI card. The card should come with all dip switches in
the down position. Refer to page 13 in the SCSI installation manual for
card memory map settings or see above switch settings.

Check to see that no other card in the system is using the memory map
area that is set aside for the SCSI card. (Page 13)

Check VGA cards. Most will grab other areas of memory that they
shouldn't. If the VGA card is the culprit, try placing it in an 8 bit
slot.

Check memory maps of memory boards.

Make sure that memory managers (usually implemented in the CONFIG.SYS
statement) have the memory area excluded that the SCSI card is using.

Check with the computer manufacturer about how to disable video, disk,
bios, and system caching. All these features need to memory addressed.




If all these offerings are of no help, please contact us in technical
support. 1-708-860-0335 x 1221




 December 28, 2017  Add comments

Leave a Reply