Phonograph Record Changer

located on the lower left side of the panel. This section

simultaneously and allows only microphone voice

is used to check any program source before switching

announcements to be made over the system.

it out to one of the channels and to monitor the output

RECORD CONTROL SECTIONS.-- These

of each of the four channels. This section contains a

two sections are located in the upper portion of the

program monitor selector switch, a volume control,

panel to the right of the mike control section. One

and a headset jack.

section is for TAPE 1 and the other section is for

To monitor a program source, plug a headphone

TAPE 2. Each section contains a selector switch to

into the headphone jack, set the monitor selector

select the program source for the recording, a record

switch to the program source, and adjust the volume

indicating button, a record volume level control, and

control for a comfortable listening level. The volume

a record volume level meter.

control in this section only affects headphone volume.

To set the correct recording volume level for the

Each program source should be checked for

tape, press and hold the record indicating button down

distortion, noise, and other signs of malfunction

and rotate the record volume level control until the

before being switched out to the ship's entertainment

record volume level meter just peaks into the red

loudspeakers.

region. Then, release the record button. The system is

To monitor any one of the four channels in use,

now ready to make a recording.

plug in the headphone and set the selector switch to

To record a program, set the selector switch to the

the desired channel.

program source desired, press the record button, and

OUTPUT LEVEL MONITOR SECTION.--

then turn on the tape recorder. During recording, you

This section is located on the lower center part of the

should monitor the tape output using the program

panel. This section is used to set the volume output of

monitor. By monitoring the tape, you will be able to

each channel and to monitor the output of any of the

quickly recognize a defective tape or recording

four channels while they are in use. The section

process. You should also switch the monitor selector

contains an output selector switch and a volume

between the program source and tape output to see

meter.

that sound level and quality are approximately equal.

To stop recording, turn off the tape recorder and return

To set the output volume of a channel, use the

the selector switch to the OFF position.

volume control for that channel and the output

selector switch and volume meter for the output level

When recording a tape, you have a choice of

monitor. The correct setting for most programs is

two tape speeds: the 7.5 ips and the 3.75 ips. The 7.5

where the signal just peaks into the red region of the

ips tape speed provides the best fidelity and is

meter.

recommended when recording from high-quality

program sources. However, the 3.75 ips speed

Phonograph Record Changer

provides very accurate fidelity for most purposes,

and twice as much program can be recorded on any

The record changer is located behind the door

given reel of tape. After recording a tape, write the

directly below the amplifier control panel. The

speed at which the recording was made on the tape

phonograph record changer is a precision unit

reel box.

incorporating a dynamically balanced arm, a heavy

CHANNEL CONTROL SECTIONS.-- There

turntable, and other features to promote maximum

are four channel control sections, one for each

fidelity and record life. It plays all standard records

channel. They are located on the upper right side of

manually or automatically. In the automatic mode, it

the panel. Each section contains a program selector

is capable of playing up to 11 records. The record

switch, a volume control, a bass control, and a treble

changer can be operated either on its slides or closed

control. When a channel is being used, the output

in its rack. When it is operated at sea, the closed

volume is set as described in the output level monitor

position is preferred. The record changer is used as a

section. The bass and treble control for each channel

program source for channels 1 and 3.

are normally set at the mid position.

To gain access to the record changer, you must

loosen the two quick-release fasteners on the door.

PROGRAM MONITOR CONTROL SEC-

Then swing the door down, release the record

TION.-- The program monitor control section is

8-4