Known problems:

Symptoms: Excessive noise, dBV meter will not drop to -60 dBV.

Problem 1: Digital Volt Meter battery low, change battery.

Problem 2: Line noise caused by high current loads on the AC line voltage.

Solution: To keep line noise out of your  measurements, make sure to plug your TE-2000 and all instruments connected to your TE-2000, and all instruments connected to those instruments into the same electrical outlet. Example: TE-2000, computer, monitor, printer, other optional instruments like oscilloscope, audio oscillator, and voltmeter. These instruments should all be connected to the same outlet. Use an extension cord with multiple outlets to do this.

Newer units have solved these old problems:
Newer TE-2000's rear panels are ABS plastic instead of aluminum, eliminating this problem

Symptoms: Test leads for the rear panel of the computer interface box are making static noise.

Problem: Two or more test leads are being pressed to the side and making contact with the aluminum portion of the rear panel.

Solution: Reposition the test leads so they are not forced to the side. If this doesn't work, insulate 1/8" of the base of each test lead with heat shrink tubing.

Newer units have solved these old problems:
Newer TE-2000's use stereo plugs for both transmit and receive, eliminating this problem

Symptom: mono cable pops out of the rear panel of the Computer interface box or the Sound Blaster Card.

Problem: Some of the mono connector plugs are too short on these older cables. The plug must be more than 0.55" long from the base to the tip. If it is shorter, the cable is defective, and the plug will not seat correctly.

Solution: Remove the cable. The mono cable is not used at this time. Return the cable to Test Electronics for replacement. If your need is urgent the cable may be purchased at Radio Shack part number 42-2420 mono to mono 1/8" cable for about $2

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