Testing and Troubleshooting
Troubleshooting Flowcharts for T20606 Card Cage System
Page 8-14 MDE-3664B TRIND® Start-up, Service, and Parts Manual · June 2013
Figure 8-9: TRIND Troubleshooting Flowchart (Sheet 3 of 4)
CAR TAG PROBLEMS
CAR TAG
NOT
WORKING
DO ANTENNAS
RESPOND TO
PROPER CAR
MOUNT TAG
PRESENTATION?
TUNE
ANTENNAS
DID
ANTENNAS
TUNE?
No
IS THERE
ANY
VOLTAGE
PRESENT ON
FIELD
STRENGTH
SENSOR?
Yes
No
REPLACE Q13579-01
LF TRANSMITTER
BOARD
ARE SYNC AND
STATUS LIGHTS
STROBING ON
T20601 LIGHT/
MICROREADER
BOARD? (
REFER TO
MDE-3664
)
Yes
No
CHECK POWER
CONNECTION(J6) FOR
PROPER VOLTAGES
ARE CORRECT
VOLTAGES
PRESENT?
Yes
No
ARE
SYNC
AND
STATUS
LED's
ON
SOLID?
Yes
Yes
Yes
IS D6 (BEZEL I/O
ERROR) LED (ON
DCB)
ILLUMINATED?
Yes
DOES POWER
CYCLING THE
TRIND CARD
CAGE REMOVE
THE ERROR?
Yes
No
No
No
RESEAT OR
REPLACE
R20763-G1
CABLE
No
REPLACE LIGHT
BOARDS, ONE AT A
TIME. IF THIS DOES
NOT CLEAR ERROR,
REPLACE DCB.
TRIND IS NOT
ACTIVE DUE
TO SETUP,
REFER TO
SHEET 1
ARE
SYNC
AND
STATUS
LED'S
OUT?
Yes
No
IS LIGHT/
MICROREADE
R CABLE
(R20773-G2)
CABLE
PLUGGED IN
ON BOTH
ENDS?
No
PLUG IN R20773-G2
CABLE
Yes
ARE
VOLTAGES
AT P177, P176
CORRECT?
(
REFER TO
MDE-3664
)
Yes
REPLACE
T20601
LIGHTBOARD
No
REMOVE J173,
J175, J176, J177,
J178, J179 FROM
T20314-G1
POWER SUPPLY.
POWER CYCLE
CARD CAGE.
ARE
VOLTAGES
PRESENT AT
P177, P176?
Yes
No
PLUG POWER SUPPLY
CONNECTIONS BACK ON,
ONE AT A TIME, UNTIL
FAULT CONDITION IS
OBSERVED. THE LAST
CONNECTION MADE
BEFORE FAULT
CONDITION OBSERVED
IS CULPRIT. REPLACE
THE BOARD CONNECTED
TO IT.
IS 24VAC
PRESENT AT
POWER
SUPPLY
INPUT?(P174)
Yes
REPLACE
POWER
SUPPLY
(T20314-G1)
No
CHECK FOR
115VAC IN TO
TRANSFORMER,
IF PRESENT,
CHANGE
TRANSFORMER
DONE