Teledyne M300EM Sync Demodulator Status LED’s, JP4 Connector to Opto-Pickup, Board

Models: M300E M300EM

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13.1.4.2.Sync Demodulator Status LED’s

Teledyne API – Technical Manual - Model 300E Family CO Analyzers

Troubleshooting & Repair

13.1.4.2.Sync Demodulator Status LED’s

Two LED’s located on the Sync/Demod Board and are there to make it obvious that the GFC Wheel is spinning and the synchronization signals are present:

Table 13-3: Sync/Demod Board Status Failure Indications

LED

FUNCTION

FAULT STATUS

INDICATED FAILURE(S)

 

 

 

GFC Wheel is not turning

 

M/R Sensor Status

LED is stuck

M/R Sensor on Opto-Pickup Board failed

D1

 

Sync/Demod Board failed

 

ON or OFF

 

(Flashes slowly)

JP 4 Connector/Wiring faulty

 

 

 

 

 

Failed/Faulty +5 VDC Power Supply (PS1)

 

Segment Sensor

 

GFC Wheel is not turning

 

 

Segment Sensor on Opto-Pickup Board failed

 

Status

LED is stuck

D2

Sync/Demod Board failed

 

ON or OFF

 

 

JP 4 Connector/Wiring faulty

 

(Flashes quickly)

 

 

 

Failed/Faulty +5 VDC Power Supply (PS1)

 

 

 

 

 

 

 

JP4 Connector to Opto-Pickup

D1 – M/R Sensor Status

Board

 

 

D2 – Segment Sensor Status

 

 

Figure 13-4: Sync/Demod Board Status LED Locations

04288D DCN5752

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Page 277
Image 277
Teledyne M300EM Sync Demodulator Status LED’s, JP4 Connector to Opto-Pickup, D1 – M/R Sensor Status, Board