Infinity es250 manual

Final placement depends on r oom acoustics, av ailability. T he center channel speaker should be placed on top of or dir ectly below. Contact your Infinity dealer for r ecommenda-. F igur e 2. This ov erhead view shows a typical home theater plan. F igur e 3. This figur e shows an alternate layout, which may be mor e. Listening Position. Remove and expose amplifier assembly by following instructions above.

All connectors must remain intact. Connect power cord, turn on power switch; verify initial DC current is less than 1. Adjust R28 CW slowly until meter reads 5 mA. Now adjust R13 CW slowly until meter reads 10 mA.

Audio Test 1. Remove the woofer by following instructions above; replace with a 20 ohm watt resistive load. Connect a voltmeter and oscilloscope to the amplifier output terminals, plus the load. Adjust the Gain control to minimum. Frequency should be set to maximum. Phase is irrelevant ; there is no input signal for this test. Turn on the unit; Observe voltage on oscilloscope and rotate controls; AC noise should be less than 8 mV.

Adjust the Gain control to minimum; Frequency should be set to maximum. Note: A high gain amplifier of at least a watt rating is recommended for this test.

Use Y-cable if necessary from mono source. GAIN control should be full counterclockwise. Turn on generator, adjust to mV, 50 Hz. Green LED should be lit. Turn GAIN control full clockwise; immediate bass response should be heard and felt from port tube opening. Cables should be connected to an integrated amplifier fed by the signal generator.

Turn on generator and adjust so that speaker level output is 2. Turn GAIN control full clockwise; immediate bass response should be heard and felt from the port tube opening. Sweep Function 1. Blog and Forum We also have a Forum where we discuss common repairs, tips, and get repair help or visit our Blog to hear about new manuals we are adding daily, appliance and consumer electronics industry news and trends, and many other topics that you may find helpful.

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