RI-130 Reader Interface Installation & User's Guide
Tech Tip 7 – Replace a Comm. 20RX chip
Many times when communications is not functioning between the IC-1600 and
the Reader Interface, the Comm20RX chip has gone bad. The Comm20RX chip
is the small green circuit board that is upside down on the bottom board of the RI-
130.
1. Remove power from the RI-130.
2. Remove the upper board from the RI-130.
3. Remove the Comm20RX chip from the RI-130.
4. Replace the Comm20RX chip with a known good chip.
5. The Comm20RX board has two J connections. J1 and J2. When replacing any
Com20RX chip the lowest J number always matches the lowest J number.
6. Match J1 on the Comm20RX chip to J7 on the RI-130
7. Match J2 on the Comm20RX chip to J8 on the RI-130
8. Replace the upper board on the RI-130.
9. Reapply power to the RI-130.
R
ESET THE
R
EADER
I
NTERFACE
B
OARD
This procedure should be tried whenever a Reader Interface is not sending up the card
data to the IC-1600. It also is the same process for all other Reader Interfaces (RI-110 &
RI-120). The RI-130’s relays do not chatter as the RI-110’s relays do when it is resetting.
1. Power down the Reader Interface board.
2. Note the dipswitch settings on S1 and S2.
3. Turn “off” all of the dip-switches on both S1 and S2.
4. Turn Pin 7 on S1 to the on position.
5. Apply power to the Reader Interface board.
6. Wait 10 seconds.
7. Turn Pin 7 on S1 to the off position.
8. Power down the Reader Interface.
9. Put original settings back in S1 and S2
10. Apply power to the Reader Interface board.
This procedure will reset the programmed Go and Shunt times. To restore them you will
have to edit the device in Access Gold™ or ASI-2000 and save it.
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