Manual Test - Yamaha DVR-S150 Service Manual

DVR-S150/NX-P150
Segment conditions of the FL driver and the FL tube are
checked by turning ON and OFF all segments. Next, the
operation of the FL driver is checked by using the dimmer
control. Then a short between segments next to each other
is checked by turning ON and OFF all segments alternately
(in lattice). (In the above example, the segments in the sec-
ond row from the top are shorted.)

8. MANUAL TEST

The noise generator built into the DSP outputs the test noise
through the channels specified by the sub-menu.
The noise frequency for LFE is 35 to 250 Hz. Other than
that, the center frequency is 800Hz.
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TEST ALL
TEST FRNT L
TEST CENTER
TEST FRNT R
TEST SURR R
TEST SURR L
TEST LFE
TEST ALL
Noise is output from all channels except SUB WOOFER.
TEST FRONT L
Noise is output from the FRONT L channel.
TEST CENTER
Noise is output from the CENTER channel.
TEST FRONT R
Noise is output from the FRONT R channel.
TEST SURROUND R
Noise is output from the SURROUND R channel.
TEST SURROUND L
Noise is output from the SURROUND L channel.
TEST LFE
Noise is output from the SUB WOOFER channel.