Service manual

Component
(Symbol)
CN Condition
Symptom
Main SW turns on Ready condition
Scanner
H.P. (S16)
109-A11
Open "SC#22" is displayed
"SC#22" is displayed
when copies are
made.
Shorted "SC#21" is displayed
"SC#21" is displayed
when copies are
made.
Lens H.P.
(S17)
109-B10
Open "SC#29" is displayed
"SC#29" is displayed
when the
magnification ratio is
changed.
Shorted "SC#28" is displayed
"SC#28" is displayed
when the
magnification ratio is
changed.
Platen
position
(S18)
111-B11
Open
Original size "
*
" is
indicated.
Original size
indicator does not
change even if a
different size original
placed on the
exposure glass.
Shorted
When the platen cover is closed, the
original size is indicated "
*
" or A3/11" x 17".
3rd
scanner
H.P. (S19)
109-A10
Open "SC2b" is displayed.
"SC#2b" is displayed
when the
magnification ratio is
changed.
Shorted "SC2a" is displayed.
"SC#2A" is displayed
when the
magnification ratio is
changed.
Original
length
(S20)
111-B21
111-B22
111-B23
111-B24
111-B25
Open
The CPU cannot properly detect original
size.
APS and AMS do not function correctly.
Shorted
Original
width (S21)
111-B19
111-B20
Open
The CPU cannot properly detect original
size.
APS and AMS do not function correctly.
Shorted
Duplex
entrance
(duplex
machine
only) (S22)
111-A5
Open ----
----
"Paper jam E"
indicator starts
blinking when copies
are made in duplex
mode.
Shorted ----
Rev. 10/92
≤0.5 V
≥0.9 Vcc
≤0.5 V
≥0.9 Vcc
≤0.5 V
≥0.9 Vcc
≤0.5 V
≥0.9 Vcc
≥2.4 V
≤0.8 V
FSM 6-39 FT5733/5433