CHAPTER 11 MAINTENANCE
11.3 Fuse replacement
Two fuses are provided:
4 A: halogen lamp circuit
315 mA: general electronics
For replacement, put the MINI-PAM upside down and remove
the bottom part (4 screws). The fuses are located on the main board,
with the 315 mA fuse being more close to the side featuring the
various connectors.
11.4 EPROM and its replacement
The location of the EPROM on the microcontroller board is
indicated in Fig. 8, which shows a view on the interior of the MINI-
PAM in its upside-down position after removing the bottom part (4
screws). The EPROM contains the software of the current program
version (see menu point 37). It can be readily exchanged against a
new EPROM when program updates become available. Please note
the little red dot at the side of the EPROM which is directed to the
side of the MINI-PAM housing where the various connectors are. For
lifting the EPROM, a paper-clip can be useful. Put a finger on it, so
that it does not jump up. When installing the replacement, make sure
that the red dot is on the proper side (there is also an arrow on the
EPROM socket). Push in the EPROM firmly, until there is a click
and it sits level at all sides. After EPROM replacement it is
recommended to reset the instrument settings and to clear the
memory (menu point 36 and 39).
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