Heathkit H14 Manual page 26

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Page 24
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Troubleshooting Chart (Cont'd.)
PROS"'"
POSSIBLE CAUSE
Head
motor
buzzes but
I'leId does not
1TlOY8
,.
C5.
In
either
direction. 2. Heed
motcw.
Paper moves bact.'wards. ••
Two windings on paper drive molar ravEned
(wiring).
.
Paper does
not
lTlOYe, or n'lOV811 81TaticllJly. ••
U115F, U116A. B,
Of
F, 0201, 0202. 0203,
Q204.
2.
Improper gear
mesh
(motor gear 10
sprod(et
shaft).
3. Binding
in area
of
sprodl;et
sn8ft.
.
4.
Paper drive motor.
5. U106.
~aper "Feed FWO" does not cause the paper
t .
"On tine,' awltch depressed.
to feadlorward.
2. SWO.
3. U110.
Paper "Feed REV" does
not
cause the
paper
,.
"On Wne"
switch
depressed.
to move backwards 1 Noe
widltI.
2.
SW7.
3.
U',0.
'"Wide
Cha('
switch
does not ~ t •
SW5, U109, U106.
d\aracter
width.
2.
Both sides
of switd'l programmed
!he
same.
5 or 6
lines
are
printed
when
MOO
line:"'
,.
LED3, 0'2, U109.
then
printing stops.
2. Inc:oned aignment of
Ieft..tland
paper drive
Peper supply is
adequate
and
not
jammed.
sprocket to paper guide.
3.
Paper
too
transpard.
Printer
wi!
not
go "oft Hne,ft
,
.
SW4, U,09.
High Temp lED is
on,
Printer wiM
not
,.
Jumper
from
J1'8
to
Jt '9 II lnstaIecl
print,
print
head
is cold.
from J118 to J117 (calibrate position).
.
2. U1178.
3.
Print
head.
Test wori<s but no printing Is done
t . U103, U105.
"on Une" connected 10 RS·232 source.
2.
Signal source and Printer on different
baud fate.
3. Incorrect I/O wiring, no signal from source,
defective ItO cable.
4. Jumper from J114 10 JllS 1$ connected
between J113 and J114.
5. PrintEll' is oft
line.
oOperates properly wittl110 baud signal,
,.
U1o., U105, (U102, 0101, 0102, 20 mA
bullosee
chafacters
~
operating
loop_I·
at
higher baud
rates.
2. ..Dnper between J109 and J110, or Jl10
and Jl11 in the incorrect poIition.
3. Signal
source nee rec:ogni.zing
the
handshaking signals. Incmec:t 110
",;ring or deleaive
cabhts.
Openl.tes properly on R5-232
signaIII bul
,.
U101.
does nee operate on 20
mA
loop 1ignaII. 2. Incmect position
cA
jumper between
J113 and J114, or J114 and J115, both
20 mA loops setup lor active or passive operation.
3.
Incorrect 110 connection or defectiYe ClIbIes.
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