MDE-3664B TRIND® Start-up, Service, and Parts Manual · June 2013
Page 8-13
Troubleshooting Flowcharts for T20606 Card Cage System
Testing and Troubleshooting
Figure 8-8: TRIND Troubleshooting Flowchart (Sheet 2 of 4)
KEY AND CAR TAG
PROBLEMS
KEY AND CAR
TAG NOT
WORKING
ARE GATEWAY BOARD
A-SIDE/B-SIDE TX/RX
LED's STROBING
PROPERLY? (REFER
TO MDE-3664)
Yes
No
ARE DCB LED'S
STROBING
PROPERLY?
(REFER TO MDE-
3664)
IS THE GATEWAY
BOARD
ADDRESSED
PROPERLY?
(REFER TO MDE-
3917, MDE-3664)
Yes
No
Yes
No
ARE LIGHT/
MICROREADER
BOARD LED'S
STROBING
PROPERLY?
(REFER TO MDE-
3664)
IS R20525-G1
CABLE
UNPLUGGED
OR DAMAGED?
(J4 ON DCB,
P187 ON
GATEWAY)
IS CRIND TO
TRIND CABLE
DAMAGED OR
UNPLUGGED?
ADDRESS
GATEWAY
BOARD
REPLACE
OR PLUG
IN CRIND
TO TRIND
CABLE
Yes
REPLACE
OR PLUG IN
R20525-G1
CABLE
Yes
Yes
DOES SYSTEM
READ KEY OR
CAR TAGS ON
EITHER SIDE?
Yes
REFER TO SHEET
3 OR 4 OF THIS
FLOW CHART,
DEPENDING ON
TAG TYPE THAT IS
INOPERATIONAL
No
No
CHECK TAG
PRESENTATION,
IS R20763-G2
CABLE
UNPLUGGED
OR
DAMAGED?
(J3 ON DCB,
P175 ON
POWER
SUPPLY)
REPLACE
OR PLUG IN
R20763-G2
CABLE
Yes
REPLACE
OR PLUG
IN R20763-
G3 CABLE
No
IS R20520-G1
CABLE
UNPLUGGED OR
DAMAGED? (J5 ON
DCB, J5 ON LF
TRANSMITTER
BOARD)
REPLACE
OR PLUG IN
R20520-G1
CABLE
Yes
No
No
IS TOGGLE
SWITCH (SW1)
ON LF
TRANSMITTER
BOARD IN THE
CENTER
POSITION?
No
MOVE
SW1 TO
CENTER
POSITION
Yes
REPLACE
DCB
TEST SYSTEM
(
REFER TO MDE-
3664, MDE-3917
)
DOES IT WORK?
Yes
No
DONE
RETURN TO
SHEET 1
REPLACE
GATEWAY
BOARD
IS GATEWAY
POWER CABLE
(R20763-G3)
CABLE
DAMAGED OR
UNPLUGGED?
Yes
No