Kaypro 2 - 15-02.TIFF

15.2 KAYPRO 2 AND 4 SYMP'll*-FIX GJIlE
CX>NDITION
No po.,ver, no
lights, no video
POSSIBLE CAUSE
Power cord not
plugged in
Fuse is blo.vn
Mainboard not getting
po.,ver
Defective mainboard
Defective fuse holder
I'<:::1Ner switch shorted
internally
Power supply jumpered
for wrong supply
Check all cord connections
Replace fuse
Check harness connections; check
for proper voltages; replace
either harness or po.,ver supply
Replace mainboard
Replace fuse holder
Replace po.,ver switch
Correct jumpering on po.,ver supply
Defective po.,ver supply Replace po.,ver supply
Defective harness
Replace harness
Fuse blows When
po.,ver is turned
on
Defective po.,ver supply Discormect all rrojules fran po.,ver
supply; replace po.,ver supply if
fuse still blows
High-pitched
squeal or "chirp"
One rrojule has a
short
Defective harness
One module is
shorted
15--2
Disconnect all rrojules, replace
fuse, an::1 re-connect modules tone
at a time, until fuse blows.
Replace that mcxiule
Replace harness
Unplug modules,one at a time,
from the harness. Replace the
module Whose unplugging causes the
noise to stop