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.
