Extron electronic 3200s manual Troubleshooting a Matrix 3200/6400 System Problem, Power Supplies

Upgrades and Troubleshooting, cont’d

Troubleshooting a Matrix 3200/6400 System Problem

All Matrix 3200/6400 BME front panels include LEDs at the bottom of the panel which are bracketed and labeled DIAGNOSTICS. These LEDs (Figure 5-6.A) indicate the current status of the BME power supplies, the RS232/BME/MKP1 Communications RX and TX lines, and the System Status. The following descriptions include normal/failure/status conditions for each LED.

Power Supplies

Primary +V	Green LED	ON = Normal
		OFF = Failure
Primary -V	Green LED	ON = Normal
		OFF = Failure
Redundant +V	Green LED	ON = Normal
		OFF = Failure (or Redundant not present)
		Blinking = Redundant +V supplying full +V load
		(indicates Primary +V power supply failure)
Redundant -V	Green LED	ON = Normal
		OFF = Failure (or Redundant not present)
		Blinking = Redundant -V supplying full +V
		load (indicates Primary -V power supply failure)

If a BME fails to power ON, check the BME external AC fuse (see Page 5-7). If the Diagnostic LEDs indicate that a power supply has failed, check the power supply fuse (see Page 5-7).

BME #0 must be powered ON at the same time or after other BMEs. Any BME powered on after BME #0 will not be seen by the internal system software.

Communications

RS232 TX - Red LED ON/Blinking = BME is transmitting data to Host

RS232 RX - Green LED ON/Blinking = BME is receiving data from Host

BME TX - Red LED ON/Blinking = BME is transmitting data

BME RX - Green LED ON/Blinking = BME is receiving data

MKP TX - Red LED ON/Blinking = BME is transmitting to Remote keypad

MKP RX - Green LED ON/Blinking = BME is receiving from Remote keypad

1. MKP TX/RX LEDs are not present on SYNC BMEs.

2.MKP LED conditions above apply only to BME #0.

3.RS-232 LED conditions above apply only to BME #0.

4.A communications failure between BME #0 and other BMEs could be caused by one BME loading down the BME TX or RX line. To determine if that is the case, run the RJ-11 BME COMM interconnecting cable to bypass each BME one at a time.

System Status

Amber LED	ON = Normal
	OFF = System failure - Call Extron Tech Support
	Blinking = Busy

Checking/Replacing the BME External AC Input Fuse

The AC power input cord plugs into the Power-Switch/Fuse assembly which is located on the rear panel in the lower left corner of the BME. To check/replace the external fuse, remove the power-cord and insert the tip of a small screwdriver blade

5-6 Matrix 3200/6400 Series • Upgrades and Troubleshooting