Figure 8-4: Sync/Demod Board Status Led Locations; Figure 8-5: Relay Board Status Leds; Table 8-4: I2C Status Led Failure Indications - Teledyne T360 Operation Manual

Teledyne API Model T360/T360M Operation Manual
JP4 Connector to Opto-Pickup
Figure 8-4:
8.1.4.3. RELAY BOARD STATUS LEDS

Table 8-4: I2C Status LED Failure Indications

LED FUNCTION
2
I C bus Health
D1
(Watchdog
(Red)
Circuit)
STATUS LED's
07272B DCN6552
Board
Sync/Demod Board Status LED Locations
There are eight LEDs located on the Relay Board. The most important of which
is D1, which indicates the health of the I
LEDs (Table 8-5) can be used in conjunction with DIAG menu signal I/O to
identify hardware failures of the relays and switches on the relay (See Section
4.13.2 and Appendix D).
FAULT STATUS
Continuously ON
or
Continuously OFF
RELAY PCA
Figure 8-5: Relay Board Status LEDs
Troubleshooting and Service
D1 – M/R Sensor Status
D2 – Segment Sensor Status
2
C bus. If D1 is blinking, the other faults
Failed/Halted CPU
Faulty Motherboard, or Relay Board
Faulty Connectors/Wiring to/from Relay Board
Failed/Faulty +5 VDC Power Supply (PS1)
DC VOLTAGE TEST
POINTS
INDICATED FAILURE(S)
233