Yamaha RX-V2065 Service Manual page 47

8. MANUAL TEST
The built-in noise generator of DSP outputs the test noise through the channels specified by using the sub-menu.
The noise frequency for LFE is 30 to 80 Hz. Other than that, the noise frequency is 500 Hz to 2 kHz.
TEST ALL
The test noise is output from all channels.
9. A/D DATA CHECK
This menu is used to display the A/D conversion value of the microprocessor which detects panel keys of this unit and
protection functions by using the sub-menu.
When K0/K1 menu is selected, keys become non-operable due to detection of the values of all keys.
However, it is possible to advance to the next main menu by turning the "PROGRAM" knob of this unit.
The figures in the diagram are given as reference only.
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PS1/PS2
PSx: Power supply voltage protection detection
PS1
Voltage detects: AC_BL, AC_12, AC_5, ±12 and +5V
Normal value: 38 to 128
(Reference voltage: 3.3 V=255)
PS2
Voltage detects: -5 and +5I
Normal value: 31 to 125
(Reference voltage: 3.3 V=255)
If PS1 or PS2 becomes out of the normal value range, the protection function works to turn off the power.
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8 . T E S T A L L
P S 1 : 0 8 7 2 : 0 7 7
RX-V2065/HTR-6295
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