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37
63-4309—2
Fig. 7—Inspect EPROM socket before EPROM
insertion.
tion notch on the EPROM socket. Be sure no pins are bent
under the EPROM.
CAUTION
EPROMs will be damaged if power is applied with
EPROMs installed upside down. The EPROM
must be inserted into the socket so that the orien-
tation notch on the EPROM is on the same end as
the orientation notch on the socket.
9. Reassemble the W7600.
Fig. 5—Removing EPROM from W7600 (if
applicable).
PM7600B
INSTALLATION
PUSH BACK SPRING
WITH SMALL
SCREWDRIVER
M4004
Fig. 8—Example of EPROM installation.
SOCKET
NOTCH
EPROM
EPROM
SOCKET
EPROM
ORIENTATION
NOTCH
EPROM
EPROM
SOCKET
EPROM
EPROM
SOCKET
ELECTRICAL
CONTACT
LEVEL
END VIEW
OR
SIDE VIEW
EPROM
EPROM
SOCKET
SOME SOCKETS GOOD,
OTHERS NO CONNECTION.
EPROM
SOCKET
4. EPROM INSTALLED
BACKWARD –
REMOVE EPROM,
REINSTALL WITH
ORIENTATION NOTCH
ON EPROM MATCHING
EPROM SOCKET.
3. EPROM NOT PUSHED TIGHTLY INTO SOCKET –
PUSH EPROM INTO SOCKET.
2. PIN(S) BENT
UNDER EPROM –
REMOVE EPROM,
STRAIGHTEN PIN(S),
REINSTALL.
1. PIN(S) NOT INSTALLED
INTO SOCKETS –
REMOVE EPROM,
STRAIGHTEN PIN(S),
REINSTALL.
POOR INSTALLATION
GOOD INSTALLATION
1. CORRECT EPROM IN CORRECT SOCKET
2. EPROM INSTALLED WITH ORIENTATION
NOTCH ALIGNED WITH FACING
SOCKET NOTCH.
3. ALL PINS ARE IN SOCKETS ON BOTH
SIDES.
4. EPROM PUSHED TIGHTLY INTO SOCKET.
AFTER INSTALLING EACH EPROM, VISUALLY INSPECT FOR THE
FOLLOWING CONDITIONS:
END VIEW
M4005B
}
STRAIGHTEN
BENT PINS
EPROM
PINS BAD
EPROM
PINS GOOD
INSPECT THE PM7600 EPROM BEFORE INSTALLATION
NOTE: TO ADJUST THE PINS OF AN EPROM, USE SMALL
NEEDLENOSE PLIERS AND CORRECT TO MATCH
OTHER PINS.
M4003
Fig. 6—Inspect EPROM pins before installa-
tion.
EPROM ORIENTATION
NOTCH MUST FACE UP
EPROM
EXTRACTION
TOOL
LOCATION OF
EPROM WITHIN
W7600
M4002
Содержание PM7600B
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