Parasound HCA-1000, HCA-750 Owners manual

O W N E R ' S M A N U A L

HCA-1000A High Current Power Amplifier

HCA-750A High Current Power Amplifier

HCA-1000A High Current Power AmplifierHCA-1000A High Current Power Amplifier

HCA-750A High Current Power AmplifierHCA-750A High Current Power Amplifier

AC Line

AC Line

L

L

Current OverloadCurrent Overload

Standby

Current Overload

Standby

Normal

Normal

R

R

-1-

IMPORTANT SAFETY INSTRUCTIONS

The lightning flash with the arrowhead symbol within an equilateral triangle is intended to alert the user to the
presence of “dangerous voltage” inside the product that may constitute a risk of electric shock.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important
operating and maintenance instructions in the literature accompanying the product.

TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER. NO USER-SERVICEABLE
PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL

1. Read Instructions — Read all the safety and operating instructions before operating this product.

2. Retain Instructions — Retain safety and operating instructions for future reference.

3. Heed Warnings — Adhere to all warnings on the product and in the operating instructions.

4. Follow Instructions — Follow all operating and use instructions.

5. Cleaning — Unplug this product from the wall outlet before cleaning. Use a damp cloth for cleaning. Clean the

outside of the product only.

6. Attachments — Do not use attachments that are not recommended by the product manufacturer; they may be

hazardous.

7. Water and Moisture — Do not use this product near water.

8. Accessories — Do not place this product on an unstable cart or stand. The product may fall causing bodily injury

and damage to the product. A product and cart combination should be moved with care. Quick stops, excessive
force, and uneven surfaces may cause the product and cart to overturn.

9. Ventilation — Slots and openings in the cabinet are provided for ventilation to ensure reliable operation of the

product and to protect it from overheating. These openings must not be blocked or covered. This product should not

be placed in a built-in installation such as a bookcase or rack unless proper ventilation is provided.

10. Power Sources — Operate this product only from the type of power source indicated on the label. If you

are not sure of the type of power supply to your home, consult your dealer or local power company. This product is
equipped with a three-prong grounding plug. This plug will only fit into a grounding power outlet. If you
are unable to insert the plug into the outlet, contact your electrician to replace your obsolete outlet. Do not defeat the
safety purpose of the grounding plug.

11. Power Cord Protection — Power supply cords should be routed so that they are not likely to be walked on or

pinched by items placed upon or against them.

12. Lightning— Unplug the unit from the wall outlet for added protection during a lightning storm and when it is left

unattended and unused for long periods of time. This will prevent damage to the product due to lightning and power
line surges.

13. Overloading — Do not overload wall outlets or extension cords. This can result in a fire or electric shock.

14. Inserting Objects into Unit - Never push objects of any kind into this product through any openings; they may

touch dangerous voltage points or short out parts that could result in fire or electric shock.

15. Servicing — Do not attempt to repair or service this product yourself. Opening or removing covers may expose you

to dangerous voltage and other hazards. Refer all servicing to qualified service personnel.

16. Damage Requiring Service — Unplug this product from the wall outlet and refer servicing to qualified service

personnel under the following conditions: a) If the power-supply cord or plug is damaged. b) If liquid has been
spilled into the product. c) If the product has been exposed to rain or water. d) If the product does not operate
normally by following the operating instructions. e) If the product has been dropped or damaged in
any way. f) If the product exhibits a distinct change in performance.

17. Replacement Parts — When replacement parts are required, be sure the service technician has used replacement

parts specified by the manufacturer. Unauthorized substitutions may result in fire, electric shock, and other hazards.

19. Safety Check — Upon completion of any service or repairs to this product, ask the service technician to perform

safety checks to determine that the product is in proper operating condition.

20. Wall or Ceiling Mounting — Mount the product to a wall or ceiling only as recommended.

21. Heat — The product should be situated away from heat sources such as radiators, heat registers, stoves, and other

products (including amplifiers) that produce heat.

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Figure #1

HCA-1000A High Current Power Amplifier

HCA-1000A Front and Rear Panel Drawings

Current Overload Indicators

Manufactured under license from LucasArts Entertainment
Company. U.S. and Foreign Patents pending. Lucasfilm THX Audio
and Home THX Symbols are Trademarks of LucasArts Entertainment
Company Lucasfilm is a Trademark of Lucasfilm Ltd.

WARNING:

TO PREVENT FIRE OR SHOCK
HAZARD. DO NOT EXPOSE THIS
UNIT TO RAIN OR MOISTURE.

CAUTION:

TO PREVENT ELECTRIC SHOCK,
DO NOT REMOVE COVER. NO USER
SERVICEABLE PARTS INSIDE. REFER
SERVICING TO QUALIFIED SERVICE
PERSONNEL.

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

Power

Power Switch

Figure #1

Current Overload

LR

StandbyAC Line Normal

Power Status Indicators

Input Connectors,

Looping Output Connectors,

and Level Controls

Inputs

CAUTION:

Speaker Impedance
4 Ω Minimum Stereo
8 Ω Minimum Bridged

Mono Bridge

StereoTHX

Level

Loop Outputs

LR

Speakers

THX
Level

HCA - 1000A

High Current Power Amplifier

Parasound Products, Inc

San Francisco, CA U.S.A.

Speaker Connectors

HCA-750A Front and Rear Panel Drawings

+ 12 Vdc

Trigger Connector

DC Trigger

GND+12 V

AC 120 V 60 Hz

Power

6.3 A Fuse

Power Consumption: 700 W

AC Receptacle

WARNING:

TO PREVENT FIRE OR SHOCK
HAZARD. DO NOT EXPOSE THIS
UNIT TO RAIN OR MOISTURE.

CAUTION:

TO PREVENT ELECTRIC SHOCK,
DO NOT REMOVE COVER. NO USER
SERVICEABLE PARTS INSIDE. REFER
SERVICING TO QUALIFIED SERVICE
PERSONNEL.

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

Power

Power Switch

HCA-750A High Current Power Amplifier

Input Connectors,

Looping Output Connectors,

and Level Controls

Inputs

Mono Bridge

Stereo

Loop Outputs

Speakers

CAUTION:

Speaker Impedance
4 Ω Minimum Stereo
8 Ω Minimum Bridged

Current Overload Indicators

Current Overload

LR

StandbyAC Line Normal

Power Status Indicators

+ 12 Vdc

Trigger Connector

DC Trigger

GND+12 V

HCA - 750A

High Current Power Amplifier

LR

Parasound Products, Inc

San Francisco, CA U.S.A.

AC 120 V 60 Hz

Power

4 A Fuse

Power Consumption: 400 W

Speaker Connectors

-3-

AC Receptacle

Introduction

Congratulations on your purchase of this precision audio component and thank you for your selection of
Parasound. Each part within your new Parasound power amplifier has been painstakingly selected for
optimum sound quality on even the most challenging music and film soundtracks. Parasound amplifiers
have greater operational flexibility and power than most other amplifiers you may have used, so please
take a few moments now to read these instructions thoroughly so you may fully understand the various
capabilities of your new Parasound power amplifier.

The Parasound HCA-1000A and HCA-750A are virtually identical in operation and very similar in sonic
performance. The main difference between these amplifiers is that the HCA-1000A has been certified
by Lucasfilm for use in THX Home Cinemas, while the HCA-750A has somewhat less power than
required to meet THX standards.

Unpacking Your Amplifier

Carefully unpack your amplifier and remove all the enclosed accessories including the remote control
and detachable AC cord. Be sure to inspect the unit for any possible shipping damage. If you see any,
contact your Parasound Dealer immediately. Be sure to save both cartons and the packing inserts for
future transport and always pack the inner carton into a protective outer carton before shipment.

Before you proceed, find the serial number located on the rear panel of your unit. Record it here for
future reference. ____________________

Installing and Rack Mounting Your Amplifier

Place your amplifier away from heat sources such as air ducts or radiators. Always mount the amplifier
horizontally and make sure that your cabinet or shelf can support its weight. It is best to provide a
separate shelf for your amplifier rather that stacking it directly above or below your other components.

Both the HCA-1000A and HCA-750A occupy two rack spaces (3 1/2") into a standard 19 inch
equipment rack. Be sure to use heavy duty mounting bolts to and nylon shoulder washers on both sides
of the faceplate to avoid scratching the amplifier’s front panel and prevent ground loops. A wide variety
of rack mounting hardware is available from Middle Atlantic Products whom you can call at
[phone]. When rack mounting equipment, it is always a good idea to have someone help support
the unit while you bolt it to the rack rails.

Ventilation Requirements for Your Amplifier

To insure safe and reliable operation, it is very important that the amplifier has plenty of ventilation to
prevent overheating and automatic shut down from its thermal protection circuitry. Please observe the
following ventilation guidelines when installing your Parasound amplifier in a cabinet or other enclosed
area: 1) If you are not using a fan, allow at least six inches on each side and above the amplifier, and do
not close off the front with a cabinet door or panel. 2) If you are enclosing the amplifier within an
equipment cabinet, use a fan to draw in cool air and exhaust warm air. In either case, two vent holes are
required: one for intake and one for exhaust. 3) Do not place the amplifier on carpeting that will
obstruct the air flow into the bottom of the amplifier chassis and heatsinks. 4) Avoid stacking
components. If you do, you must use a fan to circulate the warm air that quickly becomes trapped
between them.

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