Yamaha DSP-AX863SE Service Manual page 49

8. MANUAL TEST
Noise is output to all channels through the noise gen-
eration circuit which is included in the microprocessor.
The noise frequency for LFE (SUBWOOFER) is 35 to
80 Hz. Other than that, the noise frequency is 500 to 2
kHz.
TEST ALL
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 in using the sub-menu.
During signal processing, the condition before execu-
tion is maintained.
When K0/K1 menu is selected, keys become non-op-
erable due to detection of the values of all keys. How-
ever, it is possible to move to the next self-diagnostic
function menu by turning the PROGRAM knob of this
unit.
* The figures in the diagram are given as reference
only.
PS1/PS2
PSx: Power supply voltage protection detection
PS1
Voltage detects: AC_BH, AC_BL, AC12, AC5,
+10, +5.3H and +XM (U, C
models)
Normal value: 110 to 205 (Reference volt-
age: 5.0 V=255)
PS2
Voltage detects: +12, -12, +5V, +5D, +5I and
+3.3D
Normal value: 88 to 140 (Reference volt-
age: 5.0 V=255)
* If PS1 and PS2 are out of the normal value range,
the protection function works to turn off the power.
RX-V863/HTR-6180/DSP-AX863SE/DSP-AX863
8.TEST ALL
PS1/PS2
PS1:144 2:112
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