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Wheelock TPA-100 Installation Instructions Manual

Paging amplifiers
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273 Branchport Avenue
Long Branch, NJ 07740
(732) 222-6880
GENERAL APPLICATION INFORMATION
Wheelock's models TPA-60 and TPA-100 paging amplifiers are rated at 60 watts RMS and 100 watts RMS respectively.
These amplifiers afford a choice of five different inputs: two microphone inputs, one telephone input, and two background
music inputs. Only three of these inputs can be used actively at one time: one microphone, a choice of a second
microphone or telephone input, and a choice of one background music input applied through either AUX. 1 or AUX. 2.
Note that the background music will automatically be muted whenever a page is generated, from either a microphone or
telephone input.
An automatic volume limiter compensates for the varying voice levels and paging styles that may have access to a
system.
The amplifiers feature individual input volume controls, as well as a master volume control, individual treble and bass
controls, or low-cut horn protect switch, two input selector switches, an illuminated power on switch and a peak level
indicator.
Both models operate from 120 volts, 60Hz and have a power consumption of 180 watts (TPA-60) and 250 watts (TPA-
100). The units have an AC circuit breaker on the line input side, as well as a thermal breaker for overload protection on
the output. The AC circuit breaker is manually resettable. However, in the event it does not reset, have the trouble
investigated by an authorized service technician or return unit to the factory.
INSTALLATION
Unpacking
The amplifier was carefully checked before leaving the factory. Inspect shipping container and unit carefully for indication
of improper handling. If the unit has been damaged, make an immediate claim to the carrier.
Mounting Instructions
The amplifier is provided with a set of universal mounting brackets to facilitate either rack or surface wall mounting.
Remove the 8 screws (4 on either side) holding the cover to the chassis. Choose the mounting required (rack or surface
wall), and insert screws thru the universal mounting bracket and back into the cover/chassis holes as shown in Figures 1
and 2.
CAUTION:
THESE DEVICES ARE NOT INTENDED FOR USE IN HAZARDOUS LOCATIONS AS DEFINED BY
THE
NATIONAL ELECTRICAL CODE (NEC) AND BY THE NATIONAL FIRE PROTECTION ASSOCIATION
INSTALLATION INSTRUCTIONS
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE.
(NFPA).
MODEL TPA-60/TPA-100
PAGING AMPLIFIERS
WARNING:
RACK MOUNTING
P81932 H
SHEET 1 OF 7

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Summary of Contents for Wheelock TPA-100

  • Page 1 PAGING AMPLIFIERS GENERAL APPLICATION INFORMATION Wheelock's models TPA-60 and TPA-100 paging amplifiers are rated at 60 watts RMS and 100 watts RMS respectively. These amplifiers afford a choice of five different inputs: two microphone inputs, one telephone input, and two background music inputs.

  • Page 2: Technical Specifications

    FIGURE 1. SURFACE WALL MOUNTING For surface mounting, be sure to use hardware suitable for the mounting surface. FIGURE 2. Power and Grounding The 120 VAC line cord has a three-prong plug which should be plugged into a three wire grounded electric outlet. It is very important to maintain the amplifier ground for safe and trouble-free operation.

  • Page 3: Input Connections

    PARAMETERS TPA-60 TPA-100 POWER OUTPUT 60 WATTS RMS 100 WATTS RMS @ 1 KHz TOTAL HARMONIC DISTORTION LESS THAN 2% THD OUTPUTS 4 ohms, 8 ohms, 25V, 70V TAPE/BOOSTER 47K ohm, 0.6V OUTPUT INPUTS TELEPHONE MIC 1/MIC 2 AUX 1/AUX 2...
  • Page 4 SHEET 4 OF 7 To connect a cassette recorder to the TPA-60 or TPA-100, use a single conductor shielded cable terminated in a standard RCA type phono plug. One side will plug into the tape/booster output jack, while the other side will plug-in to the...

  • Page 5: Output Connections

    TO ALLOW FOR FUTURE EXPANSION, IT IS RECOMMENDED THAT THE TOTAL SYSTEM WATTAGE SHOULD NOT EXCEED 85% OF THE AMPLIFIER'S RATED OUTPUT (I.E. 51 WATTS FOR THE TPA-60 AND 85 WATTS FOR THE TPA-100). THE TOTAL SYSTEM WATTAGE REQUIREMENT IS THE SUMMATION OF THE WATTAGE TAP SELECTIONS OF ALL SYSTEMS SPEAKERS AND HORNS.

  • Page 6: Operation

    FIGURE 7. OPERATION FIGURE 8. (Front panel controls, switches and indicators.) NOTE: ALL CONTROLS ROTATE CLOCKWISE TO INCREASE AND COUNTERCLOCKWISE TO DECREASE. POWER SWITCH (ILLUMINATED): The amber light inside the switch will light when the AC cord is plugged into a 120 VAC source and the power switch is pressed to the ON position.

  • Page 7: Maintenance

    HORNS are used in the system. This will protect the horns from damage from low frequencies. MAINTENANCE CAUTION: THERE ARE NO USER-REPLACEABLE PARTS WITHIN THE UNIT. HAVE ALL INTERNAL SERVICING DONE BY A QUALIFIED TECHNICIAN. LIMITED WARRANTY Refer to Wheelock's Terms and Conditions of sale. P81932 H SHEET 7 OF 7...

This manual is also suitable for:

Tpa-60

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