Description Of Main System Operation - Yamaha CRX-E300 Service Manual

CRX-E300
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Description of main system operation

1) POWER ON/OFF processing [(1) to (4)]
• The power cord of each unit is connected to the AC
outlet in series and switched on and off through the
CRX relay.
• Turning off the CRX power switch will turn off the
power to other units (primary connection) but turning
off the power switch of any other unit will turn off the
secondary connection of each unit only (i.e., the
microprocessor remains on).
• Each unit has a backup function to save the
secondary connection status when unplugged
(taking use of a unit alone into consideration)
• The indicators of units are turned on after a dimmer
level signal is fed from CRX so that they light up
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simultaneously when the CRX power switch is
turned on. However, as the indicator of a unit does
not light up when the unit is used alone in this
setting, the indicator is forced to turn on when 2
seconds have elapsed without a dimmer level signal
being fed (and the power for the backup function is
turned on).
• Make sure that the power off processing of each unit
has been completed before turning off the power by
using the CRX relay.
2) FUNCTION [(5) to (6)]
• No source other than that selected by the input
selector will be reproduced.
• The functions are selected automatically to be
suitable for the source to be reproduced.
• Selecting the functions is prohibited during
recording.
3) TIMER operation [(7) to (8)]
• TIMER PLAY to start reproduction at a specified time
• TIMER REC to start recording at a specified time
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4) AUTO POWER ON [(9)]
If the power of the connected units has been turned off
while the CRX power is on and when a key involving
.
reproduction is pressed, the power is turned on
automatically.
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