Epson DFX-9000 Service Manual page 151

Epson DFX 9000
4.2.3.5 OP CABLE
Disconnect the power cable and wait at least 5 minutes for
W A R N I N G
capacitors to drain before disassembling the POWER
UNIT. If you touch the POWER UNIT with the power
supplied, you may receive an electric shock.
Handle the OP CABLE with care. It is shielded, and a
C A U T I O N
ferrite core is attached to it for electromagnetic interference
prevention.
1. Remove the PR MECHA ASY (p.
2. Release the OP CABLE from the two clamps that secure the OP
CABLE to the LOWER UNIT.
3. Disconnect the OP CABLE connector from the ROM BOARD
(CNOP: 10 pins), and remove the OP CABLE.
4. Open the two ferrite cores at their partition points, and remove them
from the OP CABLE.
5. Remove the C.B.S. 3 × 8 screw that secures the cable clamp to the
right side frame.
When replacing the OP CABLE, wrap cotton tape
around the OP CABLE five or six times in the position
shown in Figure
core stay in the correct position on the cable.
After wrapping the OP CABLE with cotton tape, install
the two ferrite cores in the positions shown in Figure
4-18.
Disassembly and Assembly
149).
4-18. This will help the upper ferrite
4)-1
Reassembly
85 ± 5 mm
OP UNIT Side
Figure 4-18. OP CABLE Removal
OP CABLE
Revision B
5)
Cable clamp
OP CABLE
2)
3)-1
Cotton Tape, 10 mm (1/2 inch) wide
Wind the tape 5 or 6 times.
ROM BOARD Side
Ferrite Cores
144