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TROUBLESHOOTING
DIAGNOSTIC LEDS (IIOIS12 MASTER AND STAND-ALONE CONSOLES ONLY)
I-E96-107-2N
6 - 5
3. Plug the power line cord for the power supply into the
power entry panel.
4. Ensure that all power supply wiring is correct.
NOTE: Check fuse in DC Power Supply.
5. Apply power to the IIOIC12.
6. Using a digital multimeter, measure the DC voltage at the
IIOIC12 DC distribution board connector TB1. (Refer to Fig-
ure
).
7. Turn OFF the power to the OIC12. Plug the MKM DC
power cable back into connector P16 on the MKM board.
8. Reconnect all DC power distribution cables.
DIAGNOSTIC LEDS (IIOIS12 MASTER AND STAND-ALONE CONSOLES ONLY)
Table
lists the IIMCP01 failure LED codes. Table
the IIMLM01 failure LED codes.
Table 6-3. IIOIC12 DC Distribution Board Voltages
Voltage
Connector TB1
P1 Pin No.
+12 V + 0.48 V
COM
-12 V + 0.48 V
N/C
+5 V + 0.2 V
COM
1
2
3
4
5-6
7-8
Table 6-4. IMMCP01 Failure Codes
MCP
Code
Top Bottom
LED LED
87654321
Error Condition
12
13
14
0010010
0010011
0010100
MLM not responding to MCP commands.
ROM checksum error (socket U23 or U24).
Expander bus message failure.
15
16
21
00010101
00010111
0010xxxx
Loop failure - check for break in circuit.
MLM loop-back test failure.
Internal software error.
32
32
33
00110001
00110010
00110011
Memory or CPU failure.
Address or bus error.
Illegal instruction.
35
36
38
00110101
00110110
00111000
Spurious exception.
Divide by 0/check/format error.
MLM not configured for MCP operation. (MLM switch 2, pole 1 needs to be ON)