Ricoh FT5233 Service Manual page 388

12 February 1992
Component
(Symbol)
Junction
gate
≥2.5 Vcc
(duplex
machine
≤0.5 V
only) (S15)
≥0.9 Vcc
Scanner
H.P. (S16)
≤0.5 V
Lens H.P.
≥0.9 Vcc
(S17)
≤0.5 V
Platen
≥0.9 Vcc
position
(S18)
≤0.5 V
≥0.9 Vcc
3rd scanner
H.P. (S19)
≤0.5 V
Original
length (S20)
Original
width (S21)
CN Condition
Open
111-B9
"Paper jam C" indicator starts blinking even if
Shorted
there is no paper.
Open "SC#22" is displayed
109-A11
Shorted "SC#21" is displayed
Open "SC#29" is displayed
109-B10
Shorted "SC#20" is displayed
Original size "
Open
indicated.
111-B11
When the platen cover is closed, the original
Shorted
size is indicated "
Open "SC2b" is displayed.
109-A10
Shorted "SC2a" is displayed.
111-B21
Open
111-B22
The CPU cannot properly detect original size.
111-B23
APS and AMS do not function correctly.
111-B24
Shorted
111-B25
Open
111-B19 The CPU cannot properly detect original size.
111-B20 APS and AMS do not function correctly.
Shorted
6-39
ELECTRICAL COMPONENT DEFECTS
Symptom
Main SW turns on
"Paper jam C"
indicator starts
— blinking when copies
are made in duplex
mode.
"SC#22" is displayed
when copies are
made.
"SC#21" is displayed
when copies are
made.
"SC#29" is displayed
when the
magnification ratio is
changed.
"SC#20" is displayed
when the
magnification ratio is
changed.
Original size indicator
does not change even
* " is
if a different size
original placed on the
exposure glass.
* " or A3/11" x 17".
"SC#2b" is displayed
when the
magnification ratio is
changed.
"SC#2A" is displayed
when the
magnification ratio is
changed.
Ready condition