111027
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1
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Technical Bulletin
111027 Rev.*
SIGMA DATA 7200 WRITE MAGNETIC HEAD REPLACEMENT
INSTRUCTIONS
Tools Required:
No.2 Phillips screwdriver (long length)
Wrist strap (or similar device) for ESD grounding
To Prepare the Printer for Maintenance:
1.
Verify that all replacement parts and tools are present.
2.
Turn off the power switch, unplug the AC power cord, and disconnect all communication and
interface cables.
3.
(1) Unlock and open the Lower Right Side
Cover then (2) open the Upper Right Side
Cover completely, until it rest on the
Service Cover (Fig.1).
4.
Remove the Service Cover by removing
the two M3 Phillips screws holding the
Service Cover to the upper frame of the
printer (Fig. 2).
Fig. 1
Fig. 2
5.
Loosen or remove two M3 Phillips screws, located on the topside
of the Back Panel, and remove the Back Panel from the printer.
Fig. 3
To Replace the Write Magnetic Head Assembly:
IMPORTANT:
Properly ground yourself using an ESD wrist strap (or similar device) to prevent static
discharge damage to the electronics.
6.
Remove the four M3 Phillips tapping
screws [4.1] from the Flash Card
Assembly. Remove three M3 Phillips
tapping screws [4.2] located in the corners
of the Flash Card Shield then disconnect
the Flash Card Assembly from the Main
PCB Assembly.
Fig. 4
4.1
4.1
4.1
4.1
4.2
4.2
4.2
Flash Card
Assembly
Flash Card Shield
