EH-TW3500/4500/5500 Disassembly and Assembly CONFIDENTIAL
SEIKO EPSON 92 Revision A
3.3.15 PS Ballast
1. Remove the Air Filter Assembly. (p.54)
2. Remove the Lamp. (p.55)
3. Remove the Upper Case (assembly). (p.59)
4. Remove the MA Board (assembly). (p.68)
5. Remove the EX Fan (assembly). (p.65)
6. Remove the DR Board (EH-TW4500/5500 series only). (p.73)
7. Remove the Optical Engine (assembly). (p.75)
8. Remove the Lamp Fan. (p.83)
9. Remove the PS Fan. (p.67)
10. Remove the Inner EX Duct. (p.90)
11. Disconnect the AC Cable from the connector on the PS Board.
12. Remove the four screws and remove the PS Ballast.
Figure 3-39.
This part is designated as the Safety Device. When removing/
replacing the part for repair, be sure to refer to “3.4 Safety Check
after Servicing (p.96)”. According to the instructions in it, handle
the part and perform the procedure after servicing.
Standard Operation Time 19 Min.
PS Ballast
AC Cable
PS Board
C.B.P-TITE SCREW,3x10,F/ZB-3C
C.P.(O) SCREW,4x6,F/NI
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