FOR-A UFH-70ADA Operation Manual
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FOR-A UFH-70ADA Operation Manual

FOR-A UFH-70ADA Operation Manual

Audio distribution amp
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OPERATION
MANUAL
UFH-70ADA
Audio Distribution Amplifier
st
1
Edition

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Summary of Contents for FOR-A UFH-70ADA

  • Page 1 OPERATION MANUAL UFH-70ADA Audio Distribution Amplifier Edition...

  • Page 3: Important Safety Warnings

    Precautions [MA1] Important Safety Warnings [Power] Do not place or drop heavy or sharp-edged objects on power cord. A damaged cord can cause fire or electrical shock hazards. Regularly check power cord for excessive wear or damage to avoid possible fire / electrical hazards. Stop [Circuitry Access] Do not touch any parts / circuitry with a high heat factor.
  • Page 4 Upon Receipt Unpacking UFH-70ADA units and their accessories are fully inspected and adjusted prior to shipment. Operation can be performed immediately upon completing all required connections and operational settings. Check your received items against the packing lists below. ITEM REMARKS...

  • Page 5: Table Of Contents

    Table of Contents 1. Prior to Starting ...........................1 1-1. Welcome ..........................1 1-2. About the UFH-70ADA......................1 1-3. About This Manual ......................1 2. Panel Descriptions ........................2 2-1. Front Panel .........................2 2-2. Rear Panel..........................2 3. Connection..........................3 3-1. Connecting Wiring to Terminal Block ..................3 3-1-1.

  • Page 7: Prior To Starting

    / three-output) selectable 1-3. About This Manual This manual is intended to help the user easily operate the UFH-70ADA and make full use of its functions during operations. Before connecting or operating your unit, read this operation manual thoroughly to ensure you understand the product. After reading, it is important to keep...

  • Page 8: Panel Descriptions

    +3.3V +15V -15V GAIN A GAIN B INTERFACE UFH-70ADA UFH-70ADA The power indicator is lit whenever the supply curcuit on the Power indicator board is operating properly. GAIN A Used to control audio gain in the range from -6dB to +6dB.

  • Page 9: Connection

    System Frame where you will be installing. 3-1. Connecting Wiring to Terminal Block To connect audio wiring to the terminal block on the UFH-70ADA rear module, follow the steps below. 1) Unscrew the cover screws at both sides of the terminal block using a small Phillips-head screw driver.

  • Page 10: Connection Example

    OUT 1 AUDIO IN OUT 2 OUT 3 Audio OUT 4 Signal OUT 5 UFH-70ADA OUT 6 OUT 7 (2) Dual channel mode (Two systems of one input to three outputs) System frame Audio signal OUT A1 （System A） IN A...
  • Page 11 3-3. Starting Up UFH-70ADA 1) Release the screws at the both sides of the system frame front panel. POWER GENLOCK ALARM UFH-112 TEMP DC POW SYSTEM FRAME POWER GENLOCK ALARM TEMP DC POW 2) Power on the system frame to start up UFH-70ADA.

  • Page 12: Internal Block Diagram

    4. Internal Block Diagram The internal block diagram of UFH-70ADA is as shown in the figure below. ･GAIN ADJUSTMENT ･GAIN SETTING AUDIO IN, IN A OUT 1, OUT A1 OUT 2, OUT A2 OUT 3, OUT A3 OUT 4, IN B ･GAIN ADJUSTMENT...

  • Page 13: Internal Settings

    5. Internal Settings The following settings can be made via the front module of the UFH-70ADA. Switch settings must be made prior to installing to the system frame. 5-1. Switch Location 5-2. Operation Mode (S301, S302 and S303) These switches are used to select between single channel mode (one way) and dual channel mode.

  • Page 14: Input Termination Impedance (Sw1, Sw2)

    5-3. Input Termination Impedance (S101 and S201) S101 and S102 switches are used to select the impedance for AUDIO IN / IN A and IN B. IN B 600Ω/ HI (Valid only for dual channel mode.) 600Ω AUDIO IN / IN A 600Ω/ HI 600Ω...

  • Page 15: Gain Setting (Sw3, Sw5)

    5-4. GAIN Setting (S102 and S202) S102 and S202 dipswitches are used to set input signal gain. IN B (Valid only for dual channel mode.) AUDIO IN / IN A Pin number Input Signal Gain +8dB +4dB -4dB -8dB Factory default setting is 0dB (all OFF).

  • Page 16: Specifications And Dimensions

    6. Specifications and Dimensions 6-1. Specifications * 0dB = 0.775V (rms) Audio input Analog audio +4dB balanced 1 input (Single channel mode) or 2 inputs (Dual channel mode) Input impedance 600Ω/High selectable Audio output - Analog audio +4dB balanced at 600Ω impedance Seven outputs (Single channel mode) - Analog audio +4dB balanced at 600Ω...

  • Page 17: Dimensions

    6-2. Dimensions (All dimensions in mm.) (O PTI ON ) +3.3V + 15V -15V GAIN A GAIN B INTERFACE UFH-70ADA UFH-70ADA...
  • Page 19 Warning This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
  • Page 20 Two Executive Drive, Suite 670, Fort Lee Executive Park, Fort Lee NJ 07024, USA Phone: +1 (201) 944-1120 Fax : +1 (201) 944-1132 FOR-A America Distribution & Service Center 2400 N.E. Waldo Road, Gainesville, FL 32609, USA Phone: +1 352-371-1505 Fax: +1 352-378-5320...

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