Preset; Fan/Ad - Yamaha DSP-AX2 Service Manual

DSP-AX2

9. PRESET

This menu reserves and inhibits initialization of the back-up RAM (parameter, set menu contents, etc. for the sound
field program).
The signals are processed using EFFECT OFF. (The L/R signals are output using ANALOG MAIN BYPASS set-
ting.)
9. PRESET
INHIBITED
9. PRESET
RESERVED

10. FAN/AD

The sub-menu of this menu displays the A/D conversion value of the CPU (function circuit board IC526) which
detects the keys and protection functions of the main unit in %. (reference voltage 5V: 100%)
It also displays the history of the fan being driven. When in KY0/KY1/RECOUT page, it is not possible to operate the
keys of the main unit because the values of all keys are detected. But one click on the VOLUME of the main unit will
cancel this function and sets to the next sub-menu. The signal processing state remains the same as that before
executing this menu.
10. FAN/AD
FAN HISTORY:000
bit 2 1 0
0 0 0
When there is a history of the fan operation: 1
21
INHIBIT (Initialization inhibited) [Remote control code: – – – – ]
RAM initialization is not executed. Select INHIBIT to protect the values set by the user.
RESERVED (Initialization reserved) [Remote control code: 7A—57 (SLEEP)]
Initialization of the back-up RAM is reserved. RESERVED should be selected when shipping
out of the factory or resetting RAM. Protection history is also cleared.
* In order to ensure that back-up RAM be initialized without fail, turn off the power and
then on by pressing the POWER (STANDBY/ON) key after selecting RESERVED.
Initialization is executed at this point.
FAN HISTORY (History of fan being driven) [Remote control code: – – – – ]
The voltage value detected from the temperature detect circuit is read by the A/D function of
the microprocessor as a data. Based on that temperature data, the fan driving speed is
controlled in 3 stages. How the fan has been driven is displayed as the history.
FAN 3.0V
FAN 3.7V
FAN 5.0V
* Selecting "RESERVED" for DIAG menu No.9 will clear the history.