Kaypro 2 - 15-08.TIFF

15.3 KAYPRO 10 SYMPl'(M-F!X GJIDE
IMPORI'ANT NOI'E
********************
Do not proceed with troubleshooting a Kaypro 10 until you verify that the
computer has eprom number 81-302-x (installed at the factory), or has been
upgraded in the field with kit number 31-303 (consisting of eprom number
81-302-x, a modified interface board, and a utilities reload diskette.)
CCNDITICN
PCSSIBLE CAUSE
RECCM1ENDED ACTICN
No poNer, no
lights, no video
Power cord not plugged Check all cord connections
in
Fuse is blONn
Mainboard not getting
poNer
De fecti ve mainboard
De fecti ve fuse holder
Power switch shorted
internally
Power supply jumpered
fur wrong supply
voltage
Replace :fuse
Check
harness connections, then
check fur proper voltages fran
poNer supply; replace either
harness or po.ver supply
Replace mainboard
Replace :fuse holder
Replace poNer switch
Correct jumpering on poNer supply
Defective poNer supply Oleck fur proper voltage output
at poNer supply harness connector;
replace poNer supply
De fecti ve harness
Replace harness
Fuse blo.vs when
pc:Mer turned on
Defective poNer supply Replace poNer supply
(he rn::rlule has a short Disconnect all rn::rlules, replace
:fuse, and re-eonnect one by one.
until fuse blo.vs again; replace It
De fecti ve harness Replace harness
15-8