Linear Power PA-1 Bedienungsanleitung

™

F O R T H E L O V E O F M U S I C

MODEL PA-1©

(1992-MSRP $110.00)

PRE-AMPLIFIER/EQUALIZER

OPERATION

INSTALLATION MANUAL

INTRODUCTION

The PA-1©is designed for the audiophile who needs to select between two

sources - either low level or high level sources. It provides clean, undistorted pre-

amplification and precise control of the three frequency bands that are the most

critical in the car environment. It also conveniently mounts in a half DIN opening

in the dash or under the dash. The PA-1©can drive the signal line with a 5 volt

RMS signal to the amplifier, which greatly improves the signal to noise ratio and

line loss in the system. In a well designed audio system the signal gain should be

built up at the source

PA-1©INSTRUCTIONS AND CONTROLS

1. Volume and on/off switch

2. Source selector, Source 1 is the out position, Source 2 is the in position.

3. Bass Eq Control, +/- 15db

4. Mid Eq control, +/- 12db

5. Treble Eq control, +/- 12db

6. Source 1 low level inputs

7. Gain adjustments, L and R set weaker source to 3/4 volume and turn up both

adjustments until system starts to clip then back adjustments off slightly. Stronger

source can be controlled by turning volume up until system clips with these

settings, then back off slightly. Then use PA-1©volume control as Master

Volume Control.

LINEAR POWER™ is a trademark of Linear Power, Inc.

8. Source 2 low level inputs, use either these or speaker level inputs described in

#9. Warning: Do not use "high power" output to this input as it will damage

both low level source inputs of the PA-1©.

9. Speaker level inputs for Source 2 (for wiring see diagram). Do not use Source

2 low level inputs if using this input.

10. Black Wire-Chassis ground, should be connected to source ground to avoid

noise. (Connect to where your radio, tape, or CD is grounded.)

11. Red Wire- Should be connected to remote turn on lead from either source or

switched wire with ignition, or to constant 12 Volt source (battery). Note: If you

use a constant 12V power source you must remember to turn off PA-1©when

you turn off your vehicle.

12. Low level output to amplifier.

LINEAR POWER™ is a trademark of Linear Power, Inc.

TROUBLESHOOTING

1. Check Connections.

2. Check high level input wiring (if applicable).

3. Make sure RCA connections are secure and not shorting.

4. Check power connections for 12 volts and ground.

NO SOUND: Check all signal connections. Check that the power indicator is on.

Check for the +12Vdc on the bat and rem wires. Check the gnd wire connection.

Bypass the PA-1©and check for signal output.

BLOWS FUSES: Check all connections to be sure all power wires do not touch

ground or each other. Re-check polarity of main power wires.

NOISE PROBLEMS: Be sure the metal sleeve on the RCA (phono) jack does

not touch the metal chassis of the vehicle, the chassis of the PA-1©, or the

chassis of any other component in your installation. Route signal cables away

from power wires, power connectors, speaker wires, engine alternator and

vehicle firewall. Make sure all amplifier(s) or head unit(s) are properly and

securely grounded.

SERVICE OR REPAIR

To obtain modification, service or repair, please contact our ONLY Authorized

LINEAR POWER™ Product Service Center:

T.I.P.S. INC.

3455 Lanell lane, Pearl, MS 39208

(601) 932-8477

E-mail: [email protected]

™

3 4 5 5 L A N E L L L A N E, P E A R L, M S 3 9 2 0 8 (6 0 1) 9 3 2 – 8 4 7 7

LINEAR POWER™ is a trademark of Linear Power, Inc.

Specifications

PA-1©

Number of inputs: 2-2 channel, switched + optional high level wires for second

input.

Number of channels: 2

Equalizer Bands: 3

Equalizer Center Frequencies: Bass - 55Hz, Mid -2.3 KHz, Treble - 13KHz

Equalizer Maximum Boost or Cut: Bass - 15db, Mid - 12db, Treble - 12db

Frequency Response: =/- 3db, 5-200 KHz

Signal to Noise, A weighted: -68 db

THD controls at flat position: .06%

Dimensions: Faceplate: 7"L x 1"H,

Chassis 3 7/8"D x 6"W x 7/8"H

™

3 4 5 5 L A N E L L L A N E, P E A R L, M S 3 9 2 0 8 (6 0 1) 9 3 2 – 8 4 7 7

LINEAR POWER™ is a trademark of Linear Power, Inc.

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