Emerson Rosemount CT5100 Reference Manual page 126

Repair and replacement
May 2020
K. Ribbon cable (to peripheral PCB)
L. 12 V power out connector J17
M. 12 V power in connector J16
N. 12 V power input wiring harness
O. 12 V power output wiring harness
P. Laser module ribbon cable
Q. HMI Display wiring harness
R. Connector J22
S. Ethernet cable
T. Ethernet connector
Procedure
1. Shut down the analyzer.
2. Open the door of the electrical compartment.
3. Tag or otherwise identify all wiring harnesses before disconnecting.
4. On the motherboard, disconnect the TEC board ribbon cable (E) from connector J12
5. Disconnect the Detector Module 1 TRIGGER OUT wiring harness (I) from connector
6. Disconnect the Detector Module 2 TRIGGER OUT wiring harness (H) from connector
7. Disconnect the Laser Module ribbon cables (P) from the motherboard.
8. Disconnect the 12 V power output wiring harness (O) from connector J17 (L).
9. Disconnect the 12 V power input wiring harness (N) from connector J16 (M).
10. Disconnect the peripheral PCB ribbon cable (K) from connector J7 (J).
11. Disconnect the Ethernet cable (S) from the Ethernet connector (T).
12. Disconnect the HMI display wiring harness (Q) from connector J22 (R).
13. Remove and retain the six screws (D) and associated spring washers (C) and flat
14. Remove and discard the unserviceable motherboard.
15. Inspect the replacement motherboard for signs of damage or delamination.
16. Place the motherboard in position on the backplate and secure by fitting the six
126
Refer to Shutdown procedure.
(B).
Refer to Figure 12-6.
J31 (G).
NOTICE
The Detector Module 2 TRIGGER OUT wiring harness (H) is an optional item that
only forms part of those analyzers that are fitted with an O
J32 (F).
The number of Laser Module ribbon cables to be disconnected will vary depending
upon the application that the analyzer has been configured for.
washers (A).
screws (D) and the associated spring washers (C) and flat washers (A) retained in
Step 13. Torque tighten the screws to 0.6 Nm.
Reference Manual
00809-0100-4511
detector.
2
Emerson.com/Rosemount