MDE-3664B TRIND® Start-up, Service, and Parts Manual · June 2013
Page 8-11
Troubleshooting T20229-G1 PCB on Card Cage Assembly
Testing and Troubleshooting
DCB (Q13563-01)
Normal Operation
Abnormal Operation/Failure
Cause/Action Required
• LED CR2 (+5 V) on solid.
• LED CR3 (+12 V) on solid.
• CR10 (RS-485 RX) and CR11
(RS-485 TX) pulsing
synchronously.
• CR5 (heartbeat) pulsing.
• CR6 (Read ANT) will light when
tag is read.
CR10 and CR11 not pulsing.
Check RS-485 serial connection (J4)*.
CR7 lit (Bezel I/O error).
Will only light when a Light/Micro
Reader PCB has a communication
problem.
CR2/CR3 not lit.
Check TI/RFID Power Supply Board.
CR6 not lighting.
.
CR5 not pulsing.
Replace DCB.
*
This is serial connection for DCB and Gateway Boards and means by which TRIND talks to G-SITE POS
system.
TI/RFID Power Supply (T20138-G1)
Power supply is gated, a current sensing circuit will turn off the “power rail” if a harmful
situation is detected. A problem on another board will cause a shut-off of power output from
the TI/RFID Power Supply PCB.
To troubleshoot TI/RFID Power Supply:
1
Verify the voltage output from TI/RFID (refer to
“T20138 and T20314 Power Supply Boards”
on
Note: Voltages are bussed, meaning that output can be checked at a single point on the board.
2
If voltage not present or reduced, verify that TI/RFID Power Supply is receiving 60 V from
Transformer at P174.
3
If 60 V is present, power down TRIND, remove connector at P173, power up, and recheck
voltage with connector still off.
4
If voltage is normal, problem is on DCB (see following table). If problem persists, reconnect
P173, and repeat step
for each of the following in sequence (except P173) or until problem
board is located:
Connector Problem Identified (if voltage returns to normal)
P173
DCB
P175
DCB
P176
Light/Micro Reader PCB Side B
P177
Light/Micro Reader PCB Side A
P178
Transmitter PCB
P179
Gateway PCB