Microtel MicroWin 2000 - Manual (Page 12)

MicroWIN 2000 Manual
Version 1.0
U13, U14. These labels are on the printed circuit board. The locations that are going to be
swapped are U1, U7, and U14.
Using a small standard screwdriver, gently pry the chips from the sockets U1 and U7. Try not to
bend the chip pins. If there is a chip in U14, remove this chip also.
8. Before inserting the new chips, make sure that the chips are inserted with the NOTCH
TOWARD THE TOP. If inserted backwards, the chips will be destroyed when power is
turned on.
For each of these three sockets, gently press the proper chip into its proper socket, being careful
not to bend the chips pins. The chip’s socket position (U1 + U7) will be on the chip’s label. The
U14 chip will be the unlabeled chip. When finished, inspect each chip to verify that all of the
chip leads are properly inserted into the socket.
9. Once all three chips are in place, reassemble the dialer following this procedure in reverse
from procedure 6 above. Tighten only enough to compress the lock-washers at each point.
10. Before re-applying power to the dialer, plug in a touch-tone phone into the phone jack and
take the phone off hook.
11. Re-apply power to the dialer and turn the power switch to the ON Position. Once the unit
finishes its start-up, it should respond “System Ready.” Press the “#” key on the phone. The
dialer should once again respond, “System Ready.” The dialer is again operational. The
Power/Fault light will be at 50/50 indicating an alarm condition. This is normal.
12. Now that the system is responding, reinitialize the system data. Type in the following
commands. If you think an error was made in typing one of these commands, press the “#” key
and reenter this command. **009001973, **009102846, **009200534.
13. To finish up, turn the power on the dialer OFF. Wait for about 20 seconds and then turn the
power back ON. The system Power/Fault light should now be at a constant flicker.
Note: When any new version of firmware is installed, you must initialize the System, Phone, and
I/O Default Data as stated above in order to prevent unpredictable results, even if after installation
the system appears to be operating correctly.
If you should need additional support, please contact Microtel.
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