Electronics > Repair
What more i can do?
squadchannel:
can mount it with imdisk. :box:
squadchannel:
two EPROMs are just system drives; the CGROM is a character ROM.
so assuming there are no other ROMs, I would consider TORNADO a chipset designed to run only the boot sector of the EPROMs.
yep, no BIOS or anything.
found BIOS in $70000...?
;D
fzabkar:
KDX.SYS is the 64KiB BIOS (0x70000 - 0x7FFFF). Its 8-bit checksum is 0x00.
--- Code: ---end of EPROM = end of KDX.SYS, so KDX.SYS is the BIOS.
Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
0007FE70 FC 2E AD AB 0C 80 AB E2 F8 C3 16 42 49 4F 53 20 ü..«.€«âøÃ.BIOS
0007FE80 CA DE B0 BC DE AE DD 20 4B 44 58 2E 31 2E 33 34 ÊÞ°¼Þ®Ý KDX.1.34 <-- WACOM KDX.1.34 BIOS
0007FE90 41 1C 43 6F 70 79 72 69 67 68 74 20 31 39 39 33 A.Copyright 1993
0007FEA0 2C A5 A5 2C 39 37 20 57 41 43 4F 4D 20 20 17 2B ,¥¥,97 WACOM .+
0007FEB0 20 4D 45 4D 4F 52 59 20 28 30 30 30 30 30 2D 31 MEMORY (00000-1
0007FEC0 46 46 46 46 29 20 0E 2B 20 56 52 41 4D 20 4D 45 FFFF) .+ VRAM ME
0007FED0 4D 4F 52 59 20 1A 2B 20 45 58 54 45 4E 44 45 44 MORY .+ EXTENDED
0007FEE0 20 4D 45 4D 4F 52 59 20 30 30 30 30 30 4B 42 20 MEMORY 00000KB
0007FEF0 10 2B 20 49 4E 49 54 49 41 4C 49 5A 45 20 4F 4B .+ INITIALIZE OK
0007FF00 21 79 04 0F 00 05 37 05 39 05 46 05 60 05 47 05 !y....7.9.F.`.G.
0007FF10 23 05 39 05 2F 04 2C 04 22 04 6A 04 5E 04 3B 04 #.9./.,.".j.^.;.
0007FF20 73 01 23 79 04 10 00 05 61 05 62 05 6A 05 39 05 s.#y....a.b.j.9.
0007FF30 24 05 43 05 41 04 4E 26 62 2D 46 04 2C 29 54 20 $.C.A.N&b-F.,)T
0007FF40 35 04 47 04 39 01 23 20 5B 42 38 45 4E 44 5D 00 5.G.9.# [B8END].
0007FF50 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0007FF60 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0007FF70 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0007FF80 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0007FF90 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0007FFA0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0007FFB0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0007FFC0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0007FFD0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0007FFE0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0007FFF0 E9 0D F8 00 00 00 00 00 00 00 00 00 00 00 DC C8 é.ø...........ÜÈ <-- Intel 80486 boots from here
--- End code ---
The file system has an unusual sector size of 1024 bytes with 1 sector per cluster.
FAT boot sector
--- Code: --- LBA:0 block: 0
OEM identifier "(.9SFIHC "
Bytes per Sector 1024
Sectors per Clust 1
Reserved Sectors 1
Number of FATs 2
Root Dir Entries 192
Total Sectors 512
Media Descriptor hE
Sectors per FAT 2
Sectors per Track 8
Number of Heads 2
Hidden Sectors 0
Total Sectors 0
(0x00800080) 00000000h
Tot. NTFS Sectors 562997198454784
MFT Cluster 10376293541461622784
MFT Mirr Cluster 2314937383425933312
Clusters per FILE 538976288 (0 bytes)
Clusters per INDX 1297307987 (0 bytes)
Serial Num (hex) 534F4453-53202020h
Checksum 6F4E5359h
Boot Sign (0xAA55)0000h
--- End code ---
Root directory
--- Code: --- LBA:10 block: 10
name ext size cluster attrs modified created accessed
-------------------------------------------------------------------------------------------------
IO SYS 32576 2 RHS--A-- 1997-04-07 01:31:00 0000-00-00 00:00:00.00 0000-00-00
MSDOS SYS 29248 34 RHS--A-- 1988-03-14 03:21:00 0000-00-00 00:00:00.00 0000-00-00
COMMAND COM 24931 63 -----A-- 1991-09-11 02:00:00 0000-00-00 00:00:00.00 0000-00-00
KDX SYS 65536 439 RHS--A-- 1997-04-07 01:34:00 0000-00-00 00:00:00.00 0000-00-00
KDX4SysR OM 0 0 ---V---- 1997-04-07 01:34:00 0000-00-00 00:00:00.00 0000-00-00
AUTOEXEC BAT 189 88 -----A-- 1997-04-07 01:34:00 1996-11-20 12:15:44.47 1996-11-20
CONFIG SYS 80 89 -----A-- 1997-04-07 01:34:00 0000-00-00 00:00:00.00 1996-11-20
CHKTP COM 58 90 -----A-- 1995-12-19 01:00:00 0000-00-00 00:00:00.00 0000-00-00
CHMSW EXE 9536 91 -----A-- 1995-12-11 01:45:00 0000-00-00 00:00:00.00 0000-00-00
DATETIME EXE 12282 101 -----A-- 1992-12-08 01:20:00 0000-00-00 00:00:00.00 0000-00-00
FDFMT EXE 14125 113 -----A-- 1994-10-24 01:02:50 0000-00-00 00:00:00.00 0000-00-00
FMCOPYA EXE 36102 127 -----A-- 1996-08-08 04:30:00 0000-00-00 00:00:00.00 0000-00-00
FORMAT EXE 16318 162 -----A-- 1993-09-07 02:10:50 0000-00-00 00:00:00.00 0000-00-00
HFORMAT EXE 25506 178 -----A-- 1994-06-21 02:15:50 0000-00-00 00:00:00.00 0000-00-00
KBEMU2 EXE 16371 203 -----A-- 1995-12-08 03:00:00 0000-00-00 00:00:00.00 0000-00-00
KMENU EXE 40952 219 -----A-- 1993-02-17 01:59:58 0000-00-00 00:00:00.00 0000-00-00
LBA:11 block: 11
KMENU KMN 1119 259 -----A-- 1995-12-14 01:00:00 0000-00-00 00:00:00.00 0000-00-00
KXCOPY EXE 20230 261 -----A-- 1995-04-03 01:30:24 0000-00-00 00:00:00.00 0000-00-00
PCFMT EXE 14299 281 -----A-- 1995-12-22 01:00:00 0000-00-00 00:00:00.00 0000-00-00
PCFORMAT BAT 377 295 -----A-- 1995-12-21 01:00:00 0000-00-00 00:00:00.00 0000-00-00
RSLINK EXE 24774 296 -----A-- 1996-08-08 02:31:00 0000-00-00 00:00:00.00 0000-00-00
SIO2DRV COM 3451 321 -----A-- 1995-08-31 02:00:00 0000-00-00 00:00:00.00 0000-00-00
SPEED EXE 7976 325 -----A-- 1993-02-23 01:40:00 0000-00-00 00:00:00.00 0000-00-00
SYMDEB EXE 26533 333 -----A-- 1985-10-16 04:00:00 0000-00-00 00:00:00.00 0000-00-00
TPCAL EXE 37510 359 -----A-- 1995-12-13 01:11:00 0000-00-00 00:00:00.00 0000-00-00
TPMOUSE EXE 10901 396 -----A-- 1995-12-01 03:00:00 0000-00-00 00:00:00.00 0000-00-00
TPSYS EXE 10300 407 -----A-- 1995-12-18 02:01:00 0000-00-00 00:00:00.00 0000-00-00
ASING EXE 5040 418 RH---A-- 1993-03-08 01:01:00 0000-00-00 00:00:00.00 0000-00-00
ÕSING EXE 5040 401 -------- 1993-03-08 01:01:00 0000-00-00 00:00:00.00 0000-00-00
ÕP 300> 0 0 ----D--- 1995-07-31 19:10:18 0000-00-00 00:00:00.00 0000-00-00
0 0 -------- 0000-00-00 00:00:00 0000-00-00 00:00:00.00 0000-00-00
0 0 -------- 0000-00-00 00:00:00 0000-00-00 00:00:00.00 0000-00-00
--- End code ---
fzabkar:
Arrggh! A Moonie!
--- Code: ---Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
00002820 05 74 05 7C 05 00 0D 0A 33 6D 6F 64 65 20 46 44 .t.|....3mode FD
00002830 2D 42 49 4F 53 20 4B 44 58 34 2E 31 2E 33 34 20 -BIOS KDX4.1.34
00002840 66 6F 72 20 46 44 43 33 37 43 36 36 31 20 28 D3 for FDC37C661 (Ó
00002850 B0 C0 4F 46 46 29 20 62 79 20 57 41 43 4F 4D 20 °ÀOFF) by WACOM
00002860 31 39 39 37 2E 30 34 20 20 52 65 76 2E 53 75 6E 1997.04 Rev.Sun
00002870 26 4D 6F 6F 6E 0D 0A 00 00 00 00 00 00 00 00 00 &Moon...........
--- End code ---
The FDC37C661 device is a 2.88MB Super I/O Floppy Disk Controller with a parallel port, 2 x serial ports and an IDE interface.
https://theretroweb.com/chip/documentation/fdc37c661-6419cedba3e3f070037826.pdf (datasheet)
222Lab_Test222:
Did it (EPROMS DATAs) says or shows anything regarding where the issues are? :scared:
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