Yamaha RX-Z1 Service Manual page 35

Av receiver/av amplifier
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THM/PRD/PRV (Detection of the temperature of the
heat sink and protection function)
THM: Detection of the temperature of the heat sink
(Normal value: 6~40)
At 5% or less, the protection function works to turn
off the power. At more than 40%, possibility is that
there is an error in the temperature detection
system.
PRD: Protection value for DC detection (Normal value:
1~13)
When the value is out of the normal value range,
the protection function works to turn off the power.
PRV: Protection value for power voltage (Normal value:
5~15)
When the value is out of the normal value range,
the protection function works to turn off the power.
13. SOFT SWITCH
This menu is used to switch the function settings on P.C.B.
through the software so as to activate the product.
When the function settings have been switched, be sure to
select No.11 menu and initialize the memory.
The protection function follows the P.C.B. settings. When
connected to AC or in the maker preset state, the unit is
initialized to the P.C. B. setting. Display of each function
after initialization varies depending on settings on P.C.B.
The operation mode can be changed by selecting the sub-
menu and then using the INPUT MODE key. With
ENABLE selected for the SWITCH, the settings become
effective.
SOFT SWITCH: ENABLE or DISABLE can be selected.
Be sure to select this before any of the
following menu items.
MODEL: DSP-AZ1, RX-Z1 or AX1(UG) can be selected.
SPI: NTSC or PAL can be selected.
TUNER: J, UC, R or NONE can be selected.
AAC: ON or OFF can be selected.
THM PRD PRV
027 006 009
13.SOFT SWITCH
SWICH : DISABLE
13.SOFT SWITCH
MODEL : DSP-AZ1
13.SOFT SWITCH
SPI
: NTSC
13.SOFT SWITCH
TUNER : NONE
13.SOFT SWITCH
AAC
: OFF
RX-Z1/DSP-AZ1
34

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