Kaypro 2 - 15-04.TIFF

KAYPRO 2 AND 4 SYMPJ.'(M-rn <mIE (cxNr"D)
CCNDITICN
PCSSIBLE CAUSE
ROCCM1ENDED ACI'ICN
"Raster" (hori-
zontal lines) on
video
Brightness not adjusted Turn up brightness knob on bade of
properly chassis ~ adjust brightness IXJt on
CRI' board if necessary
Strange video
image
Loose connection fran
mainboard or poNer
supply
Short in brightness-
adjusting knob
De fecti ve ma.inboard
Oleck black plug fran poNer supply
to CRr board, 4-pin jumper fran
main 1:x:lard to eRr 1:x:lard ~ check that
plug on rear 0 f eRr tube is square
Check fur shorts between wires in
rear of brightness-adjusting krx:>b
Replace rrainboard
Missing characters De fecti ve ma.inboard
on video display
De fecti ve eRr
Replace ma.inboard
Replace eRr asserribly
will not l:x:x:>t
De fecti ve diskette
Change diskettes
Diskette has no system Change diskettes ~ use a diskette
image with a 1<rloNn good system image
Wrong CP/M fur m::rlel
of rrachine
De fecti ve drive B
De fecti ve rrainboard
Defective drive A
Defective data cable
15-4
Check that you I re rot trying to
1::x:x:>t a KP 2 with a KP 4 CP/M
(KP 4 WIIL l:x:x:>t a KP 2 CP/M)
Unplug data cable fran drive B,
and reset machine ~ if it l:x:x:>ts,
replace drive B
Replace mainboard
Replace drive A
Replace data cable