User Guide

PAMS
Technical Documentation
RAE-3
8. Troubleshooting
Page 8 – 74
Issue 1 06/01
2.21 IR Interface Troubleshooting diagram
IR test OK?
(Wintesla)
IrDA test OK
VBB (Vcc)
OK?
(N050/6)
IRED_A(Vled)
OK?
(N050/1)
C052 – C054 OK?
R050, R052, R053,
R054, C055, C050
OK?
Replace IR module
CPU fault
IRDO (Txd)
OK?
(N050/3)
IRDI (Rxd)
OK ?
(N050/4)
IREN (Sd)
OK ?
(N050/5)
CANNOT BE MEASURED IN THE JIG
IR Test
OK?
(Wintesla)
NO
YES
NO
NO NO NO
YES YES
YES NO
IR CHECK
Figure 62.