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SECTION 2 — PREPARATION FOR USE

2-1 Initial Inspection

Check the shipping carton carefully for external

damage. If the carton shows evidence of abuse, ask
the carrier’s agent to be present when the unit is un-
packed. Carefully unpack the unit to avoid damaging
the equipment through the use of careless proce-
dures. Inspect all equipment for damage immediately
after unpacking. Bent and broken parts, dents, and
scratches should be noted. If damage is found, refer to
paragraph 2-2 for recommended claim procedures.
Keep all packing material for possible future use.

2-2 Claims

If the unit has been damaged, notify the carrier im-

mediately. File a claim with the carrier and advise Lo-
gitek of such action to arrange for repair or
replacement without waiting for a claim to be settled
with the carrier.

2-3 Repacking for Shipment

If the unit must be returned to Logitek, attach a let-

ter to it showing the owner’s name and address. A de-
scription of the necessary service should be included
in the letter. The original shipping carton and packag-
ing materials should be used for reshipment if possi-
ble. Use FRAGILE labels on each surface. Return the
unit freight prepaid. Be sure to insure the unit for its full
value. The unit will be repaired promptly and returned
freight prepaid.

2-4 Installation

The Bright-VU models are designed to be mounted

in a standard 19" equipment rack by using the four
mounting holes in the corners of the front panel. Plas-
tic washers should be used to keep the mounting
screws from marring the front panel finish.

While flow-through ventilation is not necessary, the

units should not be mounted directly above equipment
which produces significant heat, such as equipment
using vacuum tubes. The unit should never be oper-
ated if the ambient temperature is above 55 degrees C
(131 degrees F).

2-5 Connecting Mains Power

Connect the meter to the power mains with the en-

closed power cord. The unit is factory set for 115VAC
operation but 230VAC operation can be selected via a
slide switch located next to the power transformer in-
side the unit. To gain access to the voltage select
switch, remove the enclosure top cover. The switch is
located adjacent to the large power transformer. The
mains connector is an IEC standard power entry mod-
ule and may be used with any IEC type power cord of
15 amps or less.

2-6 Input Selection on Dual Input Models

If the digital receiver can lock onto an input signal

then the meter will display that signal whether it con-
tains errors or not. If no signal is connected to the digi-
tal input or the data rate is out of the receiver’s capture
range, then the meter will display the analog signal.
This happens even if nothing is connected to the ana-
log inputs.

2-7 Connecting Digital Input Models

The Bright-VU accepts AES/EBU or S/PDIF serial

data at sample rates of 30,000 to 50,000 samples per
second via a female XLR connector on the rear panel.
The input is also wired directly to the male XLR con-
nector on the back panel for use in loop-through mode.
The loop-through connector provides a convenient
way to daisy-chain several pieces of equipment off of
one digital output. Loop-through works well with
AES/EBU signals but should be limited to 10 feet with
S/PDIF signals and cables.

S/PDIF signals using RCA type plugs may be con-

nected to the input using an RCA to XLR adapter.
Coax cables using BNC connectors can be connected
to the input using a BNC to XLR adapter. Both of these
are available from Logitek.

AES/EBU Connection

Pin 1:

Shield

Pin 2:

Pin 3:

Signal -

Pin-1 and the shell of each XLR is attached directly

to the chassis at the connector. These shielding com-
ponents do not share a ground path with any of the in-
ternal circuitry. One-end-only shield connections are

NOT

recommended when using digital input models.

It is also important to set the two input load switches

located between the two XLR connectors.

Sw1

Sw2

Ohms

Use

2200

Loop-through mode

110

Balanced twisted pair (XLR)