Sharp ER-04RP Service Manual page 6

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ER-OZIRF
4-3. Removing the control PWB and SRN interface
PWB
Remove the bottom cover.
Unfasten the connectors (at six locations).
Remove the PWB holding screws (at four locations) and the con-
4-5. Auto cutter unit removal
Remove the printer mechanism from the body.
Remove E3 (two positions) shown in the figure.
Pull the shaft in the arrow direction , and remove the auto cutter
unit. (Two spacers will come off at the same time.)
nector cover holding screw (at one place) to remove the PWBS.
Auto cutter unit
Control
SRN interface
PWB
?
PWB
e'
pacer
ter mechanism
Fig. 4-5
Fig. 4-3
4-4. Removing the power supply
power supply unit
1)
Removing the power supply PWB
PWB and AC
Unfasten the connectors (at three locations).
Remove the screws M3xI0 (at two locations) and tapping
screws M3x8 (at two locations).
Remove the PWB while paying attention to the wires.
2) Removing the AC power supply unit
Remove the AC inlet holding screws M3x6 (at two locations)
and the ground wire holding screw M4x6.
4-6. Removing the operation panel PWB and PE
sensor PWB
Remove the upper cover and the tapping screws (at two locations)
to remove the operation panel PWB.
Remove the power transformer holding screws M4x6 (at three
locations).
Unfasten the connector at the secondary side of the power
transformer to remove the entire power supply unit.
Power supply PWB
Power transformer
Noise filter PWB
I
/.
Fig. 4-6
47.
When fixing with the switch panel interface connector PWB removed,
use fixing screw of 3 x 8. If the any other screw is used, it makes
contact with the power PWB.
Remove the printer mechanism and the screw (at one place) to
remove the PE sensor PWB and PE sensor holder as an assemb-
ly.
To remove the PWB alone, twist the PE sensor holder lug and
detach the PWB from the holder.
Lug
/
+
+
.
\ .
<'
\
/
Fig. 4-4
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