MD4S
17
EPROM(IC104)REMOVAL AND INSTALLATION
1.
Removing the EPROM
1-1
Insert a sharp tweezers into the gap of socket
and lift the one side of EPROM by hooking
it. When the one side is raised, insert the
tweezers into other gap and lift the EPROM
as well. (Fig. 1, Fig. 2 and Fig. 3)
1-2
Repeat the procedure in 1-1 alternately to
remove the EPROM.
Note: If the tweezers is hooked too strongly, the
EPROM jumps up and breaks. Remove the
EPROM by pressing down with a finger as
shown in Fig. 2.
2.
Installation of the EPROM
2-1
Put the EPROM on the socket, then check
that the EPROM moves slightly by moving it
gently with a finger. (Fig. 4)
2-2
Set the EPROM into the socket by pressing
down until it clicks. (Fig. 5)
Note: Be sure to check the following items after the
installation of EPROM.
1. Four corners of EPROM are securely fit in
the frame.
2. There is no damage with hooks or defective
hooking.
EPROM
Gap
IC Socket
Tweezers
EPROM
IC Socket
1st pin
1st pin (Double circle side)
: OK
: NG
XV501
MD4S
A
<ROM INSTALLATION INDICATION>
Components side inprint
IC 104 (XV501A00, EPROM with label)
EPROM
(Fig. 4)
(Fig. 5)
(Fig. 3)
(Fig. 2)
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