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VCA-MC Series

 Amplifier Accessories

page 16

Operation Manual

7 Service

7.2.3 Factory Service Shipping Instructions:

1.

Service Return Authorization (SRA) is required for product being sent to the factory for 

service. Please complete the SRA by going to 
www.crownaudio.com/support/factserv.htm. If you do not have access to our website, 
call 1.800.342.6939, extension 8205 and we'll create the SRA for you.

2.

See packing instructions that follow.

3.    Ship product to: 

  CROWN AUDIO FACTORY SERVICE
  1718 W MISHAWKA RD. 
  ELKHART, IN 46517

4.

Use a bold black marker and write the SRA number on three sides of the box.

5.

Record the SRA number for future reference. The SRA number can be used to check 

the repair status.

7.2.4 Packing Instructions

Important:

 These instructions must be followed. If they are not followed, Crown Audio, 

Inc. assumes no responsibility for damaged goods and/or accessories that are sent with 
your unit. 

1.

Fill out and include the Crown Audio Factory Service Information sheet in the back of 

this manual.

2.

Do not ship any accessories (manuals, cords, hardware, etc.) with your unit. These 

items are not needed to service your product. We will not be responsible for these 
items.

3.

When shipping your Crown product, it is important that it has adequate protection. We 

recommend you use the original pack material when returning the product for repair. If 
you do not have the original box, please call Crown at 800.342.6939 or 574.294.8210 
and order new pack material. (Do not ship your unit in a wood or metal cabinet.)

4.

If you provide your own shipping pack, the minimum recommended requirements for 

materials are as follows:

 a. 200 P.S.I. burst test, Double-Wall carton that allows for 2-inch solid Styrofoam on all 

six sides of unit or 3 inches of plastic bubble wrap on all six sides of unit.

b.

Securely seal the package with an adequate carton sealing tape.

c.    Do not use light boxes or “peanuts”. Damage caused by poor packaging will not be 

covered under warranty.

5.   E

nclose the completed Crown Audio Factory Service Information form (or securely 

attach it to the outside of carton) and re-seal the shipping pack with a sturdy carton 
sealing tape.

Summary of Contents for 1-VCAP

Page 1: ...on or maintenance The information provided in this manual was deemed accurate as of the publication date However updates to this information may have occurred To obtain the latest version of this manu...

Page 2: ...as been tested and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interfer...

Page 3: ...Bridge Mono Wiring 9 4 Operation 10 4 1 Operation Using the VCAP Wall Mount Level Control 10 4 1 1 Troubleshooting 11 4 2 Operation UsingYour Own Potentiometer or an External 10 VDC Variable Source 12...

Page 4: ...VCAP Wall Mount Level Control 5 Figure 1 4 4 VCAP Wall Mount Level Control 5 Figure 3 1 Wiring the VCA Level Control to the VCA MC module 7 Figure 3 2 Wiring Your Own Potentiometer 8 Figure 3 3 Exampl...

Page 5: ...nnel 1 VCA2 for channel 2 and so on VCA MC modules can be controlled in one of two ways Optional Crown 1 VCAP or 4 VCAP wall mount level controls An external control voltage of 0 to 10 VDC 1 VCAP See...

Page 6: ...e system to be set at the amplifier 1 2 1 VCAP Level Control Features Provides remote volume control for one or more CTs amplifier channels 1 3 4 VCAP Level Control Features Provides remote volume con...

Page 7: ...ox and the power amplifier allowing some slack on both ends No cable is provided CAT 5 cable will work fine but Crown recom mends using standard twisted pair shielded microphone cable 2 See Figure 3 1...

Page 8: ...iometer as shown in Figure 3 2 Connect one end terminal of the pot to the power supply ground and VCA ground connect the other end terminal to 10 VDC and connect the wiper to the VCA control input of...

Page 9: ...subwoofers all for the same room In this case it is convenient to control all of those channels with the same control Also for correct operation when channels are bridged control inputs for the bridg...

Page 10: ...turn the amplifier attenuator clockwise until the system s volume is at the maxi mum value you want it to operate at Remember to refer to the power rating of the speakers If the sound from your speak...

Page 11: ...Detent 0 is full counterclockwise Dentent 30 is full clockwise Note This table is for refer ence only Actual attenuation may vary 1 dB 4 1 1 Troubleshooting If the amplifier gain does not respond to t...

Page 12: ...e to the input level you just used to set it If the input level from the audio source increases so will the output level of the amplifier The volume limit is not an absolute limiter 6 Turn off the amp...

Page 13: ...ion is 43 3 dB See the CTs Multi Channel Series Operation Manual for attenuation vs detent of the amplifier attenuator Figure 5 1 System Block Diagram This unique design allows the system designer to...

Page 14: ...8 cm Control Voltage 0 to 10VDC between GND and VCA VCA MC8 Pins VCA GND 10V VCA x4 Weight 5 0 oz 142 g Dimensions Gain Module 5 1 2 x 2 1 2 14 0 cm x 6 4 cm Connector Break Out 5 15 16 x 1 1 2 15 cm...

Page 15: ...with the defective unit to an authorized service center to obtain service They will handle the necessary paperwork and repair Remember to transport the unit in the original factory pack A list of auth...

Page 16: ...rmation sheet in the back of this manual 2 Do not ship any accessories manuals cords hardware etc with your unit These items are not needed to service your product We will not be responsible for these...

Page 17: ...yment of Non Warranty Repairs Payment on out of warranty repairs must be received within 30 days of the repair date Units unclaimed after 30 days become the property of Crown Audio Inc If you have any...

Page 18: ...after receipt of the defective product at our authorized service center or our factory All expenses in remedying the defect including surface shipping costs in the United States will be borne by us Yo...

Page 19: ...hase price not including interest insurance closing costs and other finance charges less a reasonable depreciation on the product from the date of original purchase Warranty work can only be performed...

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