Yamaha RX-V461 Service Manual page 16

CAUTION: Before setting to the PRESET RESERVED,
write down the existing preset memory con-
tent 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 P1
A
B
C
D
E
9. A/D DATA CHECK
This menu is used to display the A/D conversion value
of the microprocessor which detects panel keys of the
main unit and protection functions in using the sub-
menu.
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 advance to the next sub-menu by
turning the VOLUME of the main unit. When using this
function, note that turning the VOLUME more than 1
click would cause the volume value to change.
During signal processing, the condition before execu-
tion is maintained.
* The figures in the diagram are given as reference
only.
PD/PV
PD: PRD (Power amplifier DC protection detection)
The output of power amplifier DC (DC voltage)
is detected.
Normal value: 35 to 81 (Reference volt-
age: 3.3 V=255)
PV: PRV (Voltage protection detection)
Voltage detects: ACL, AC2, 10V, S9, +12,
-12, +5V and VP
Normal value: 84 to 153 (Reference volt-
age: 3.3 V=255)
* If PRD and PRV are out of the normal value range,
the protection function works to turn off the power.
P2 P3 P4
PD: 57 PV:116
RX-V461/HTR-6040/DSP-AX461
P5 P6 P7 P8
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