Epson 4000 Service Manual - Page 228
Power Supply Board
UPC - 010343848337
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EPSON Stylus Pro 4000 4.2.4.2 Power Supply Board W A R N IN G When removing the "Power Supply Board", wait 5 minutes after unplugging the AC power cord before starting work to allow discharge of residual charge in the electrolytic capacitors. For your safety, never touch the primary smoothing capacitor (C6). Do not place the "Power Supply Board" (solder side) directly on a conductive surface. 1. Remove the "PCB Unit".(Refer to "4.2.4.1 C511 MAIN Board" (p221).) 2. Disconnect the following connectors/harnesses from the "Power Supply Board". Table 4-4. Connectors Connected to Power Supply Board Connector No. Color Number of Pins Connection Socket CN1 White 2 AC Inlet CN2 White 14 C511 MAIN Board (CN1) 3. Remove the five screws securing the "Power Supply Board" and remove the "Power Supply Board". C.B.S. 3x8 : 3 pcs. C.B.S. 3x8 Revision B Connectors C.B.S. 3x8 Figure 4-39. Power Supply Board Removal Disassembly & Assembly Disassembly Procedures 228