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From 09/03/2014 to 11/01/2014

11/01/2014

05:37 PM Support #1162: Memory for A20
tin wrote:
> What you mean?
>
> You have firmware for K2000?
No, I do not have the firmware A20 sorry, I have...
Anonymous

10/17/2014

08:26 AM Support #1162: Memory for A20
What you mean?
You have firmware for K2000?
tin

10/11/2014

03:39 PM Support #1162 (Closed): Memory for A20
Hi, A20 corresponds to the firmware memory U156 or U157.
Thank you
Anonymous

09/23/2014

05:39 PM Revision 5:74d67668d575 (kei2000): Added calibration document
Ilya Tsemenko
05:32 PM Revision 4:85c90ebe586b (kei2000): Added firmware, added 27C020 EEPROM datasheet
Ilya Tsemenko
05:16 PM Revision 3:dc992df10433 (kei2000): added more photos, added multisim design
Ilya Tsemenko
08:56 AM Revision 2:a9aeea8a1b87 (kei2000): Added big photos
tin
02:17 AM Revision 1:96f652adeca2 (kei2000): Added photos and firmware A02
tin
02:08 AM Rework #1159: Clean board and restore damaged traces from leaked electrolyte
Replaced caps and +15V -15V regs
100.2, 201.1, 201.2, 300.1, 301.2, 303.2 errors fixed.
tin

09/22/2014

11:35 PM Support #1160 (Closed): Backup EEPROM with programm memory A02
Firmware read from U157 ODD (2000-803-A02)
Firmware read from U156 EVEN (2000-804-A02)
tin
12:13 PM Rework #1159 (Closed): Clean board and restore damaged traces from leaked electrolyte
Replace C146 (2200uF 16V), C131, C148 (1000uF 50V)
Clean board from electrolyte
Repair corroded traces
Replace U118
tin
12:12 PM Revision 0:750fa8b1adb1 (kei2000): Added service manual and schematics from bbs.38hot.net ID #874
Ilya Tsemenko
11:31 AM Feature #1158 (Closed): Broken K2000 unit received, need repairs
Unit powers on.
VFD works.
Keypad works.
Self-test faults:
|100.2|SIGNAL NOISY|Primary checks should be the r...
tin
 

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