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TX-SR700/E ADJUSTMENT AND CONFIRMATION PROCEDURES 2
3. Confirmation of Current detection circuit Set the unit to "Test-1-00". Connect the differentiating circuit and apply the 200Hz square signal to MULTI CHANNEL INPUT terminal of each channel. Adjust the attenuator or Volume so that the output level becomes 35V p-p. Confirm that the speaker relay does not turn OFF when a 3.0 ohm load is connected. Confirm that the speaker relay turns off when a 1.5 ohm load is connected. Caution:Don't continue more than 3 seconds.
CR OSCILLATOR DIFFERENTIATING CIRCUIT 200Hz SQUARE OSCILLOSCOPE ATTENUATOR MULTI CHANNEL INPUT SPEAKER TERMINAL UNIT
INPUT
3.3k
0.1 F
1SS133x6
3.3k
OUTPUT 10k GND 0.01 F
35Vp-p
Test Mode
Differentiating Circuit
1. Turn POWER button on. 2. Press and hold down CD button, then press STANDBY/ON button. 3. After "Test-1" on the FL tube is displayed, press CD button to set the unit to the Test mode of FL tube.
Note: DVD:Test-1 VIDEO 1 :Test-2 ZONE 2: UP VIDEO 2 :Test-3 VIDEO 3:Test-4 REC OUT: DOWN
Test mode of FL tube
All segments light on.
ZONE 2
REC OUT
Test-X YZ
FL TUBE Item
"FEDCBA987654321" light on.
The segments of odd number light on .
The segments of even number light on .
"Good-bye **" light on.
**: Region US:U.S.A. EU:Europe WR:Other models Press POWER button to finish the Test mode of FL tube.
Confirmation of voltage sensor 1. Set the unit to Test-3-4. 2. Apply the signal 1kHz, -15dBV to the MULTI-CH input. Confirm that the FM STEREO is displayed. Confirm the all channels except SUBWOFFER. 3. When connect the resistor 2.7 kohm/1 W between the terminals COM and TH1 of P6301, confirm that "FM STEREO" light on. Note: No input signal. 4.When set the unit to "Test-4-30,confirm that the speaker relays of RL6901 and RL6902 turn off. Note: No input signal.
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