4-29
4
Motherboard
BIOS chip
The BIOS chip is located in socket U8 on the motherboard. The BIOS chip contains
boot information, such as the startup diagnostics that the Print Controller X4(AR-PE1)
uses when you power on the system.
T
O
REPLACE
THE
BIOS
CHIP
1.
Locate the BIOS chip on the motherboard (socket U8).
2.
Using a PROM extractor, remove the BIOS chip from its socket on the motherboard.
3.
To replace the BIOS chip insert it into the socket so that the notch in the chip is
aligned with the notch in the socket.
Make sure to align the pins on the chip with the holes in the socket. If you notice any
bent pins, straighten them gently with a pair of needlenose pliers.
F
IGURE
4-18
Diagram of BIOS chip socket
4.
Reassemble the Print Controller X4(AR-PE1) and verify its functionality (see “Restoring
Print Controller X4(AR-PE1) functionality after service” on page 4-11).
Motherboard battery
The battery on the motherboard is located at BT1. To replace it, use a 3V manganese
dioxide lithium coin cell battery (Panasonic CR2032 or equivalent).
CAUTION:
There is danger of explosion if the battery is replaced with the incorrect
type.Replace only with the same type recommended by the manufacturer. Dispose of
used batteries according to the manufacturer's instructions.
ACHTUNG:
Es besteht Explosionsgefahr, wenn die Batterie durch eine Batterie falschen
Typs ersetzt wird. Als Ersatz dürfen nur vom Hersteller empfohlene Batterien gleichen
oder ähnlichen Typs verwendet werden.Verbrauchte Batterien müssen entsprechend den
Anweisungen des Herstellers entsorgt werden.
ATTENTION:
Il y a risque d'explosion si la pile est remplacée par un modèle qui ne
convient pas. Remplacez-la uniquement par le modèle recommandé par le constructeur.
Débarrassez-vous des piles usées conformément aux instructions du constructeur.
Socket notch
Pin 1
BIOS chip
