Yamaha rx-v561 Service Manual page 20

RX-V561/HTR-6050
7. TEST TONE
The noise generator with a built-in microprocessor outputs the noise through the channels specified by the submenu.
The noise frequency for LFE (SUBWOOFER) is 35 to 80 Hz.
Other than that, the noise frequency is 500 to 2 kHz.
7.TEST ALL
7.TEST FRNT L
7.TEST CENTER
7.TEST FRNT R
7.TEST SURR R
7.TEST SURR L
7.TEST LFE
8. FACTORY PRESET
This menu is used to reserve and inhibit initialization of the back-up RAM.
The signals are processed using EFFECT OFF (The L/R signal is output using ANALOG BYPASS).
8.PRESET INHI
8.PRESET RSRV
CAUTION: Before setting to the PRESET RESERVED, write down the existing preset memory content of the tuner in a table
as shown below.
(This is because setting to the PRESET RESERVED will cause the user memory content of the tuner to be
erased.)
Preset Group
A
B
C
D
E
20
TEST ALL
Noise is output from all channels.
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 (SUBWOOFER)
Noise is output from the LFE (SUBWOOFER) channel.
PRESET INHIBIT (Initialization inhibited)
Back-up RAM initialization is not executed. Select this sub-menu to protect the values set by the user.
PRESET RESERVED (Initialization reserved)
Initialization of the back-up RAM is reserved. (Actually, initialization is executed the next time that the
power is turned on.)
Select this sub-menu to reset to the original factory settings or to reset the RAM.
Any protection history will be cleared.
P1 P2 P3 P4 P5 P6 P7 P8