Epson RC620 CU - Page 193

Maintenance 6. Maintenance Parts Replacement Procedures
RC620 Rev.8 177
6.4.2.2 BIOS Backup Battery (Faster)
CAUTION

Lithium batteries contain flammable materials such as lithium, organic
solvents, etc. If misused, batteries may generate heat, explode or catch
fire. Observe the following precautions for safe use of lithium batteries.
- Be sure to use the battery supplied as the maintenance parts from
EPSON.
- Do not allow the positive (+) and negative (-) electrodes to short circuit
during maintenance.
- Do not discard batteries into fire or heat them to high temperature.
- Do not disassemble or alter batteries.
- Discarding batteries according to the regulations.
BIOS
Backup Battery
(Faster)
Removal
(1)
Remove the
CPU board.
Refer to Maintenance: 6.4.2.1 CPU Board (Faster).
(2)
Remove the
BIOS backup battery which
is located as shown in the photo.
Slowly slide the
battery on the CPU board to the direction in the photo.
Be sure to remove the battery with care, otherwise the plastic part of the battery will
be broken if you apply too much force on it.
Stored in the holder
(3)
Pull out the battery diagonally from the battery holder.

NOTE