Epson Stylus Pro 9900 - Power Supply Board Assy

Epson Stylus Pro 7700/7710/7700M/7710M/7900/7910/9700/9710/9900/9910/WT7900/WT7910/9890/9908/7890/7908 Revision I
DISASSEMBLY & ASSEMBLY Disassembly and Assembly Procedure 230
Confidential
4.4.3.2 Power Supply Board Assy
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
Figure 4-49. Removing the PS Board Mounting Plate
Figure 4-50. Removing the Power Supply Board Assy
Connector assignment:
W A R N I N G
 When removing the Power Supply Board Assy, do not start the
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.
C H E C K
P O I N T
Before starting operation, refer to “4.1.4 Cautions when
replacing the Main Board Assy/Power Supply Board Assy”
(Page 171)
.
C H E C K
P O I N T
Remove the five screws on the upper side of Figure 4-50 using the
screwdriver approx. 20 cm in length.
A D J U S T M E N T
R E Q U I R E D
Be sure to refer to Chapter 5 “Adjustment” (see p351) and perform
specified adjustments after replacing the Power Supply Board Assy.
<Adjustment Item>
1. Colorimetric Calibration (Color ID)
2. CR/PF Motor Current Input
Connector No. Color Destination
CN001
White AC Inlet
CN301
White Main Board Assy (CN1)
A
CN301
CN001
A
- As seen from the rear -
Power Supply Board Assy
PS Board Mounting Plate
A
Power Supply Board Assy
PS Board Mounting Plate
C H E C K
P O I N T
C H E C K
P O I N T