Kaypro 2 - 15-03.TIFF

KAYPRO 2 AND 4 SYMPI'CM-FIX <nIlE (CCNT' D)
CCNDITICN PCSSIBLE CAUSE
PoNer LED flickers Shorted ITOOule
ROCC»1ENDED ACI'ICN
Disconnect rrodules fran p:JNer, one
at a time, until LED stays on:
replace m:x:1ule whose unplugging
caused LED to stay on.
Defective po..;er sUfPly Replace pcMer sUfPly
No video display,
or poor quality
display
De fecti ve harness
Brightness not
adjusted
CRr not connected
De fecti ve CRr
De fecti ve mainboard
Replace harness
Turn up brightness knob on rear 0 f
chassis: adjust brightness pot on
CRI' lxlard, if necessary
Check all connections to CRI': be
sure plug on rear of CRI' tube is
square
Replace CRI' assembly
Replace mainboard
Defective po..;er sUfPly Replace po..;er sUfPly
Video is on, but
screen is filled
with "garbage"
characters
Defective harness
De fecti ve mainboard
Reset harness shorted
to chassis
Replace harness
Replace mainboard
O1eck lugs of reset button fur
groundirg to inside of chassis
Defective reset harness Replace reset harness
15-3