Power Supply Board Assy - Epson Stylus Pro 7700 Service Manual

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Epson Stylus Pro 7700/7710/7700M/7710M/7900/7910/9700/9710/9900/9910/WT7900/WT7910/9890/9908/7890/7908

4.4.3.2 Power Supply Board Assy

When removing the Power Supply Board Assy, do not start the
W A R N I N G
work immediately after disconnecting the AC cable. Wait for at
least five minutes for the electrolytic capacitor to finish
discharging residual charges.
When powering this product, high-voltage current may be
applied on the Power Supply Board Assy. To prevent
ELECTRIC SHOCK, do not touch the Power Supply Board
Assy when the power is ON. If the shock should happen, the
flowing current is very tiny, about a few hundreds μA,
therefore it will not do any harm on the human body.
Before starting operation, refer to
C H E C K
replacing the Main Board Assy/Power Supply Board Assy"
P O I N T
(Page 171)
.
1.
Remove the Rear Cover.
(p220)
2.
Disconnect the two connectors (CN001, CN301) on the Power Supply Board Assy.
3.
Remove the two screws that secure the PS Board Mounting Plate, and remove the
PS Board Mounting Plate.
A) Silver, Phillips, Bind machine screw M3x6: two pieces
4.
Remove the nine screws that secure the Power Supply Board Assy, and remove the
Power Supply Board Assy.
A) Silver, Phillips, Bind machine screw M3x6: nine pieces
Remove the five screws on the upper side of
C H E C K
P O I N T
screwdriver approx. 20 cm in length.
Be sure to refer to Chapter 5 "Adjustment"
A D J U S T M E N T
R E Q U I R E D
specified adjustments after replacing the Power Supply Board Assy.
<Adjustment Item>
1.
Colorimetric Calibration (Color ID)
2.
CR/PF Motor Current Input
DISASSEMBLY & ASSEMBLY
"4.1.4 Cautions when
Figure 4-50
using the
(see p351)
and perform
Disassembly and Assembly Procedure
- As seen from the rear -
CN301
A
Figure 4-49. Removing the PS Board Mounting Plate
C H E C K
P O I N T
PS Board Mounting Plate
Figure 4-50. Removing the Power Supply Board Assy
Connector assignment:
Connector No.
Color
White
AC Inlet
CN001
White
Main Board Assy (CN1)
CN301
Revision I
PS Board Mounting Plate
Power Supply Board Assy
CN001
A
C H E C K
P O I N T
Power Supply Board Assy
A
Destination
230
Confidential

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