Previous Thread
Next Thread
Print Thread
Page 9 of 9 1 2 3 4 5 6 7 8 9
#110575 - 08/11/17 01:45 AM Re: T/A Alphatronic PC? [Re: Spirantho]  
Joined: Mar 2001
Posts: 15,734
R. Belmont Offline
R. Belmont  Offline

Very Senior Member

Joined: Mar 2001
Posts: 15,734
USA
Is the Bicom the "extended graphics card" with the rats nest of wires that was in your Alphatronic? smile

#110576 - 08/11/17 02:28 AM Re: T/A Alphatronic PC? [Re: Spirantho]  
Joined: Jan 2012
Posts: 747
rfka01 Offline
Senior Member
rfka01  Offline
Senior Member

Joined: Jan 2012
Posts: 747
Bavaria
You mean the orderly documented, professionally connected colourful cable that's connected to the 16 pin header? yeah, sort of grin

01 brown: ground (mainboard bottom left)
02 red: ground (mainboard bottom left)
03 orange: connected to TR-10 (top left of the piezo buzzer) via two resistors, to the left 470 Ohm (5% tolerance) to the right 3,9 kOhm (5% tolerance)
04 yellow: IC-1086 - HD74LS175P - Pin 12
05 green: IC-1012 - SN7407N - Pin 1
06 blue: IC-1097 - HD74LS175P - Pin 6
07 violet: IC-1012 - SN7407N - Pin 5
08 grey: IC-1097 - HD74LS175 - Pin 9
09 white: IC-1012 - SN7407N - Pin 11
10 black: IC-1097 - HD74LS175P - Pin 2
11 brown: IC-1013 - HD74LS04P - Pin 12
12 red: IC-1013 - HD74LS04P - Pin 8
13 orange: IC-1089 - HD74LS00P - Pin 13
14 yellow: IC-1071 - HD74LS00P - Pin 6
15 green: IC-1103 - HD74LS10P - Pin 9
16 blue: not connected

[Linked Image]


NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
Page 9 of 9 1 2 3 4 5 6 7 8 9

Who's Online Now
4 registered members (Reznor007, ssj, Golden Child, plgDavid), 32 guests, and 3 spiders.
Key: Admin, Global Mod, Mod
Shout Box
Forum Statistics
Forums9
Topics8,426
Posts109,198
Members4,759
Most Online225
May 26th, 2014
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.026s Queries: 14 (0.009s) Memory: 4.9479 MB (Peak: 5.1099 MB) Zlib enabled. Server Time: 2017-10-18 16:46:03 UTC