Optimus SCR-64
(140-0704)                 Preparation                Faxback Doc. # 39515


CONNECTING POWER

You can operate the SCR-64 using the supplied power cord, internal
batteries (not supplied), or vehicle battery power
(using an optional DC adapter).

USING AC POWER

To power the SCR-64 with standard AC power, use the supplied power cord.
Connect one end of the cord to the SCR-64's AC~jack and the other end to a
standard AC outlet.

If the connector does not fit easily into the AC jack, turn it over and
try again.  It only fits one way.

    Note:

    Internal batteries (if installed) automatically disconnect when you
    plug the power cord into the SCR-64.

USING BATTERIES

The SCR-64 requires six C batteries (not supplied) to run on internal
battery power.  For the longest life, we recommend alkaline batteries,
such as Radio Shack Cat. No. 23-551.

1.  Press down on the tabs above the battery compartment cover and pull it
    down to remove it.

2.  Install the batteries as indicated by the polarity symbols (+ and -)
    marked inside the compartment.

    Cautions:

    Use only fresh batteries of the required size and type.

    Do not mix old and new batteries, different types of batteries
    (standard, alkaline, or rechargeable), or rechargeable batteries of
    different capacities.

3.  Replace the cover.

If the SCR-64 does not operate properly or if the sound becomes weak or
distorted, replace the batteries.

    Cautions:

    Always dispose of old batteries promptly and properly.

    Never leave dead, old, or weak batteries in the SCR-64.
    They can leak chemicals and corrode or damage electronic circuits.

    If you do not plan to power the SCR-64 with batteries for several
    days, remove the batteries to protect the SCR-64 from possible
    battery leakage.

USING VEHICLE BATTERY POWER

To power the SCR-64 from your vehicle's cigarette-lighter socket, you can
use an optional DC adapter (Cat. No. 273-1802).

    Cautions:

    You must use a DC adapter that supplies 9 volts and delivers at least
    500 mA.  Its center tip must be set to negative, and its plug must
    correctly fit the SCR-64's DC 9V jack.  Using an adapter that does not
    meet these specifications could damage the SCR-64 or the adapter.

    Always connect the adapter to the SCR-64's DC 9V jack before you
    connect it to the cigarette-lighter socket.  Then disconnect the
    adapter from the cigarette lighter socket before disconnecting it
    from the SCR-64.

Follow these steps to power the recorder from your vehicle's
cigarette-lighter socket.

1.  Set the adapter's voltage switch to 9V.

2.  Insert the adapter's 5.5 mm outer diameter/2.1 mm inner diameter
    barrel plug into the recorder's DC 9V jack.

3.  Plug the adapter into the vehicle's cigarette-lighter socket.

    Notes:

    If the SCR-64 does not operate properly when you use DC power, be sure
    the cigarette-lighter socket is clean and that the adapter's plug is
    pushed all the way into the socket.

    Disconnect the adapter when you are not using the SCR-64.

    Internal batteries (if installed) automatically disconnect when you
    plug the adapter into the DC 9V jack.

USING HEADPHONES

For private listening, you can connect a pair of headphones (not supplied)
with a 1/8-inch plug.  Your local Radio Shack store carries a wide
selection of headphones.

Insert the headphones' 1/8-inch plug into the SCR-64's PHONES jack.

    Note:

    Connecting headphones automatically disconnects the built-in speaker.

LISTENING SAFELY

To protect your hearing, follow these guidelines when you use headphones.

    Set the volume to the lowest setting before you begin listening.
    After you begin listening, adjust the volume to a comfortable level.

    Do not listen at extremely high volume levels.  Extended high-volume
    listening can lead to permanent hearing loss.

    Once you set the volume, do not increase it.  After time, your ears
    adapt to the volume level, so a volume level that does not cause
    discomfort might still damage your hearing.

TRAFFIC SAFETY

Do not wear headphones while operating a motor vehicle.  This can create a
traffic hazard and can be illegal in some area.

Even though some headphones let you hear some outside sounds when
listening at normal volume levels, they still can present a traffic
hazard.

(br/km-05/14/1997)

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