RE: KBD PROBLEM Re: Msg 13595

3 comments to RE: KBD PROBLEM Re: Msg 13595

• pucc_unknown

  September 26, 1986 at 8:02 pm

  13811 26SEP86-2002 HELP
  RE: KBD PROBLEM (Re: Msg 13616)
  From: ABELARD To: MARTYGOODMAN

  THANKS, MARTY. THE KEYBOARD IS NEW (LESS THAN A YEAR OLD), SO THE MECHANISAM
  MUST BE BEYOND THE RIBBON CONNECTOR. WHY ALL ON THE LEFT SIDE OF THE BOARD
  THOUGH? AND WHY ONLY NOW AND THEN–BUT ALL AT ONCE WHEN IT DOES HAPPEN? BY THE
  WAY, TOOK YOUR AD
  ADVICE FROM SOMETIME AGO. I’M GETTING A NEW MS-DOS MACHINE: A 1000 SX. I’LL BE
  KEEPING THE COCO, OF COURSE–AND WILL PROBABLY END UP USING IT AT LEAST AS MUCH
  AS THE 1000. BUT I WOULLIKE TO GET THAT OTHER ONE GOING AND REL
  AGAIN, IF YOU THINK OF ANYTHING. WHICH KEY MECHANISMS? DOES INPUT GO FROM
  KEYBOARD TO A SPECIFIC CHIP ON THE BOARD FOR A GIVEN GROUP OF CHARACTERS, MAYBE?
  THANKS AGAIN.
  –JOHN–

• pucc_unknown

  September 26, 1986 at 8:08 pm

  13812 26SEP86-2008 HELP
  RE: KBD PROBLEM (Re: Msg 13617)
  From: ABELARD To: MARTYGOODMAN

  AHA! READ THIS ONE AFTER REPLYING TO THE LAST ONE. THE D-BD MACHINE HAS A NEW
  KBD. IN FACT I REPLACED THE ORIGINAL CHICKET ONE WHEN I UPGRADED TO 64K WAY
  BACK. WHEN THIS PROBLEM STARTED I REPLACED THE NEW KBD (THE LOW-SCULPTURED ONE,
  LIKE ON THE OLD
  16K’S) WITH THE NEW ONE (RS DID IT; I DID THIS ONE MYSELF–ON THE E-BD MACHINE
  THAT WORKS PERFECTLY; MY$5 ONE, THAT I HAVE TO TELL YOU ABOUT SOMEDAY), THE TOP
  AVAILABLE THEN. WHEN THE POROBLEM FIRST STARTED. AFTER IN REPLACED IT, THINGS
  WERE OKAY FOR
  A MONTH OR SO, THEN SAME PROBLEM. OPENED IT UP, CHECKED RIBBON CONNECTIONS,
  ETC, IT WAS FINE, AND THEN BEGAN TO ACT UP AGAIN AFTER A COUPLE OF MONTHS. SAME
  SET OF KEYS, SAME POSITION (LEFT SIDE OF KBD), SAME PHENOMENON OF ALL WORKING OR
  ALL FAILIN
  G TO WORK AT ONCE. HELP!!!!!
  –JOHN–

• pucc_unknown

  September 27, 1986 at 3:10 am

  13846 27SEP86-0310 HELP
  RE: KBD PROBLEM (Re: Msg 13811)
  From: MARTYGOODMAN To: ABELARD

  The PIA chip in the CoCo is responsbile for keyboard input.
  But I doubt it is at fault here, for a PIA problem would
  look like a keyboard connector problem: You’d have
  a given row or rows or column or columns of the matrix dead.
  Your problem does not seem to resemble that.

  I personally judge the 1000SX to be grossly overpriced.
  You can buy a pretty good and compatible MS DOS / PC XT
  clone from Taiwan suppliers for $500 to $700 fully loaded
  with extras (640K, two drives, two serial and one parallel port,
  real time clock, joustick port, hi res monochrome monitor driver).

  The SX… indeed the entire 1000 series… seems a bad choice to me.
  They are too small to fit full length IBM cards into them.
  THAT is VERy limiting!!!

  And they feature a standard composite monochrome monitor output..
  which is rather low quality text screen. The TTL hi res
  monochrome card produces an enormously superior test screen.
  THAT is the display I use on MY PC clone.

  If you need color, you will find the “CGA style” RGB color
  of the SX to be grossly inadequate and archaeic. You’ll
  want at LEAST the “EGA” standard graphcs on the PC..
  and THAT is an extra card in any case.

  Add a hard drive? Only $400 more for 20 meg
  with controller from most discount venders..
  Compare that to Tandy&
  ‘s price. And note there are hassels
  hooking a third party hard drive to a Tandy machine..
  but not to a fully compatible (=with pirated IBM EPROMs
  in the sockets) clone.

  —marty