HITACHI 60SDX88B
Instrukcja Obsługi

l

Front:

Check that the phases of R and L are different and 400Hz is superimposed on 5kHz. The amplitudes of R and L are different. Check that the phases of R and L are opposite and 400Hz is superimposed on 5kHz. The amplitudes of R and L are different.
FRONT REAR

1.3.6 Hall surround/monaural

check

Adjustment procedure . Check that the following waveforms are obthined. (Input signal (IJ only-L mono input). . Front:
l

l

Rear:

Rear:

The phases of R and L are different. The amplitudes are different. The phases of R and L are opposite. FRONT REAR

Note:

Center has no output.

Note:

Center has no output.

1.3.4 Matrix surround/monaural

check 1.3.7 Dolby surround check

Adjustment procedure . check that the fotlowing waveforms are obtained. (Input signal @ only-L mono input). . Front: Rear:
l

R and L waveforms are almost equal. R and L waveforms are almost Zero.
l

FRONT

REAR

Adjustment procedure (1) Set to SURROUNDDOLBY-PRO LOGIC-NORMAL Check that the following waveforms are obtained. (Input Signal Oand 0) 400 Hz is superimposed on 5kHz. R and L are the same signal and 400Hz is superimposed on 5kHz. FlRONT
I REAR I

R

Note:

Center has no output.

1.3.5 Hall surround
1 ,

check

L m Note:

Adjustment procedure (1) Set to SURROUND: HALL. (Input signal 0 and @ ).
l

MODE: PRO LOGIC (NORMAL)

Front:

Check that the phases of R and L signals are different and 400 Hz is superimposed on 5kHz. Check that the R and L are opposite and 400Hz is superimposed on SkHz. The R and L amplitudes are equal.
FRONT REAR

1.3.8 Dolby surround/monaural

check

l

Rear:

Adjustment procedure (1) Set to SURROUND: DOLBY-PRO LOGIC-NORMAL Check that the following waveforms are obtained. (Input signal @ only-L mono input).
l l l

.

Front: Almost no output from both R and L. Center: Same as the audio input signal. Rear: Almost no output from both R and L.
FRONT REAR

GE-NTER

Note:

Amplitude levels of front R and L are not even depending on P.W.B. Center has no output.

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