Factory Preset; Ad Data Check; P1/P2 (Power Supply Voltage Protection Detection); Power Supply Voltage Protection Detection/Temperature Detection - Yamaha MCR-E810 Service Manual

3. FACTORY PRESET

This menu is used to reserve/inhibit initialization of the backup RAM (Set menu contents, etc. of the sound field program).
3.PRESET INHI
3.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
ALL user memory contents to be erased.)
Preset group P1
A
B
C
D
E

4. AD 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-operable due to detection of the values of all keys. However, it is possible
to advance to the next sub-menu by turning the INPUT of the main unit.
* Numeric values in the figure example are for reference.

P1/P2 (Power supply voltage protection detection)

Power supply voltage protection value (Normal value: P1: 102 to 400, P2: 102 to 329)
P1: Detects +5I, ±B and AC2.
P2: Detects +5I, ±12, +10V, -VP and AC1.
* If Px is out of the normal value range, the protection function works to turn off the power.
(Reference voltage: 5V=500)
P3/TH (Power supply voltage protection detection/Temperature detection)
P3: Amp DC protection (Normal value: 0 to 402)
* If Px is out of the normal value range, the protection function works to turn off the power.
(Reference voltage: 5V=500)
TH: Detects the temperature of the heat sink.
Temperature detected value
(Normal value: 0 to 176) U, C, T, K, A, B, G models
(Normal value: 0 to 170) L, V models
(Reference voltage: 5V=500)
PRESET INHIBIT (Initialization inhibited)
RAM initialization is not executed. Select this sub-menu to protect the values set by the user.
Note: The protection history will not be erased using PRESET INHIBIT.
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. Use PRESET RESERVED to erase the protection history.
P2 P3 P4 P5 P6
RX-E810/RX-E410/NX-E800
P7 P8
P1:xxx P2:xxx
P3:xxx TH:xxx
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