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SERVICING - Section 8
MTS-1700 SERIES OPERATION AND REFERENCE MANUAL 8-1
CU A002 15A
MANTA TEST SYSTEMS
SERVICING
8.1 FUSE REPLACEMENT
8.1.1 Mains Input Fuse
For 120V systems, replace the rear panel mains AC input fuse with a fast blow, 15A/250VAC fuse. (For
240V systems, replace the rear panel mains AC input fuse with a fast blow, 8A/250VAC fuse).
8.1.2 COMM Port Picofuse
The COM3 communications port is fused with a 0.75 amp picofuse. This fuse can be checked for the
resistance between the voltage output N terminal and pin 7 of the COM3 connector. The resistance should
be less than 200 ohms.
This picofuse is marked as F1 (near rear left corner) on the main backplane for the plug-in cards. The plug-
in cards, and card cage shield, will have to be removed to replace the fuse. This only should be performed
by a qualified technician. Serious damage may be incurred if this isn’t performed properly.
8.2 LAMP REPLACEMENT
The lamps in the [FAULT], [STATIC/DYNAMIC] and [STOP/RESET] pushbuttons should be replaced
with a Spectro #73, 14.0 volt incandescent lamp.
To replace, remove the plastic cap, pull the ejection lever to eject the existing lamp, and insert the new lamp.
8.3 FIRMWARE UPGRADE
The firmware is upgradable through a serial communication port at the back of the MTS-1710. Call Manta
Test Systems to obtain the correct firmware version for your particular unit. The following procedure de-
scribes the use of Hyperterminal as the terminal program. However, any terminal program can be used.
1
Copy the files from the diskette to an empty directory on your hard drive (or leave them on the
diskette, if you like).
2
Double-click the com1-38400.ht icon (
) to start HyperTerminal. (If you need to use
COM2, you’ll have to modify the HT file)
3
Plug your computer into the MTS-1710’s COM1 port.
4
Hold the PREVIOUS key down on the MTS-1710, while you turn on its power.
5
You should see something like this on HyperTerminal: