Front Panel - JVC M-7050 Instruction Book And Service Manual

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Instruction Manual
FRONT PANEL
PHONES
POWER Switch
Headphones jack (PHONES)
Exclusively for monitoring purposes.
Employ this facility in the following cases, for example:
1. To locate'the beginning of a particular section of tape
when no speaker sound is desirable.
2. To monitor the sound to be transmitted to a remote place
when the amplifier is used as a public address system.
(Note) Plugging in the headphones does not switch off the
speaker sound automatically. When you wish to
listen to sound from the headphones only, set the
SPEAKER switches to OFF.
POWER switch
Press to turn the power on. The red indicator lamp in push
knob will light and the POWER meters will be illuminated. To
turn the power off, press the switch again to release.
Panel IImination:
For a period immediately after the POWER switch is turned
ON, the illumination of the POWER meters is red. Wait for
about 4 - 5 seconds until it changes to white. If it continues to
be red for a longer span, the protection circuit is operating for
some reason. Turn the POWER switch OFF and check the
cause of malfunctioning.
—— Power meter
SPEAKER Switch
POWER meters
The output power is indicated in wattage on the compressed
logarithmic scale in reference to the 8-ohm load impedance.
SPEAKER switches
To listen to the speaker system connected to the rear panel
SYSTEM-1 terminals, press the SYSTEM-1 switch.
To listen to the speaker system connected to the rear panel
SYSTEM-2 terminals, press the SYSTEM-2 switch..
Both speaker systems can be heard by pressing both switches.
When a SPEAKER switch is pressed, the green indicator lamp
on the corresponding switch lights.
(Note) If the load impedance is lower than 4 ohms, the
protection circuit is activated, resulting in inter-
mittent sound.
2. If two pairs of speakers are to be driven simultaneously,
the speaker impedance should be between 8 and 16 ohms.