Rom Removal - Epson FX-880 Service Manual

4.2.7 ROM Removal

WARNING
„ Before disassembling, assembling or adjusting the printer,
„ Do not touch the heat sink attached to the switching FET (Q1) on the
„ Never touch the heat sink attaches to the switching FET (Q1) while at
1. Remove the PAPER GUIDE ASSEMBLY, top cover, front cover, paper eject cover, knob and
tractor unit. (See Section 4.2.3.)
2. Remove the upper housing. (See Section 4.2.4.)
3. Remove 5 CBS (M3
printer mechanism and lower housing and remove the shield cover. (See Section 4.2.5.)
4. Remove the ROM from the C229MAIN Board.
Rev. A
disconnect the power supply cable from the AC power socket.
Failure to do it cause personal injury.
power supply board, just after power off as it may be very hot.
AC power cable is connected to the AC outlet, as it is not electrically
isolated.
4) screws and 3 CBB (3
Chapter 4 DISASSEMBLY AND ASSEMBLY
12) screws securing the shield cover to the
FX-880 Service Manual
4-12