Instruction/ maintenance manual of the product VCM-88 Ashly
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ASHLY AUDIO INC. 847 Holt Road Webster, NY 14580-9103 Phone: (585) 872-0010 Toll-Free: (800) 828-6308 Fax: (585) 872-0739 www.ashly.com VCM-88 VCM-88E Eight Channel Matrixing Level Controllers RD-8 De.
Operating Manual - VCM-88, VCM-88E, RD-8, RW-8 Level Contr ollers 2 T able Of Contents 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2 Unpacking .
3 Operating Manual - VCM-88, VCM-88E, RD-8, RW-8 Level Contr ollers W ARNING: THIS APP AR A TUS MUST BE EARTHED The exclamation point within an eqilateral triangle is intended to alert the user to the presence of important operating and maintenance instructions in the literature accompanying the device.
Operating Manual - VCM-88, VCM-88E, RD-8, RW-8 Level Contr ollers 4 1. Introduction One of the many useful circuits to be developed for audio use is the VCA, or voltage controlled amplifier . A VCA circuit allows for accurate, low distortion level con- trol without signal degradations encountered when using mechanical controls or long signal paths.
5 Operating Manual - VCM-88, VCM-88E, RD-8, RW-8 Level Contr ollers 5. VCM-88, VCM-88E Featur es 5.1 Signal Pr esent LED Each channel has a green LED to indicate input signal present (app. -20dBu). Since the LED is referenc- ing the audio signal prior to the VCA circuit, the LED will continue flashing even if the channel level is turned down.
Operating Manual - VCM-88, VCM-88E, RD-8, RW-8 Level Contr ollers 6 5.7 Master Output and Channel Pass Through The VCM-88(E) can be used as an eight-in/one- out remote level control for personal monitor mixing using the Master Output. Multiple VCM-88(E) units can be daisy chained to produce several unique mixes from the same program source.
7 Operating Manual - VCM-88, VCM-88E, RD-8, RW-8 Level Contr ollers 5.13 Data Protocol Selector (VCM-88E only) These two DIP switches allow selection of four data protocols. The Standard protocol is selected for use with current Ashly , AMX, or Crestron controllers.
Operating Manual - VCM-88, VCM-88E, RD-8, RW-8 Level Contr ollers 8 7. Audio Connections and Cables 7.1 Balanced and Unbalanced Signals Balanced signal connections are preferred in pro audio applications because of their improved immunity to induced hum and noise.
9 Operating Manual - VCM-88, VCM-88E, RD-8, RW-8 Level Contr ollers tions. The jumper must be placed in the “1” position (see drawing at top of page) for single jack in/out operation. W ith the jumper set to “1”, the input is on the tip and the output is on the ring of the In jack.
Operating Manual - VCM-88, VCM-88E, RD-8, RW-8 Level Contr ollers 10 9. Data Connections and Configurations 9.1 Standard Remote Data Control T o connect the RD-8 or R W-8 remote controller, the VCM-88 uses a rear panel female XLR jack, while the VCM-88E uses a three pin euroblock connector .
11 Operating Manual - VCM-88, VCM-88E, RD-8, RW-8 Level Contr ollers T o use the VCM-88 with Protea Software, internal data jumpers (see fig. 9.2) must be placed in the RS-232 position on the printed circuit board. On the VCM-88E, the Standard protocol selection is used for Ashly RD-8, R W-8, AMX, and Crestron.
Operating Manual - VCM-88, VCM-88E, RD-8, RW-8 Level Contr ollers 12 below). The Slave Data Out from the first unit is connected to the Slave Data In on the next unit, and so on, with the Slave Data Out from the last unit returning to the Slave Data In on the first.
13 Operating Manual - VCM-88, VCM-88E, RD-8, RW-8 Level Contr ollers 1 1. W arranty Information W e thank you for expression of confidence in Ashly products. The unit you have just purchased is protected by a limited five year warranty . T o establish the warranty , you must first complete and mail the warranty card attached to your product.
Operating Manual - VCM-88, VCM-88E, RD-8, RW-8 Level Contr ollers 14 13. Dimensional Drawings 0.79 7.94 (202) emote e ! el " o $ tro l all ount Control ler 0.
15 Operating Manual - VCM-88, VCM-88E, RD-8, RW-8 Level Contr ollers + C11 J_3 R35 C_7 R_8 R_7 + C_5 C_6 - + U_1B R_4 - + U6C R65 + C_1 VR2 R70 D20 D23 D22 R12 - + U4A R45 D12 R37 X7 X6 X5 X4 X3 X2 X1.
Operating Manual - VCM-88, VCM-88E, RD-8, RW-8 Level Contr ollers 16 123456 78 A B C D E 8 7 6 5 4 3 2 1 E D C B A B APPROVED: Dw g # Size Drawn B y Rev.
17 Operating Manual - VCM-88, VCM-88E, RD-8, RW-8 Level Contr ollers 123456 78 A B C D E 8 7 6 5 4 3 2 1 E D C B A B APPROVED: Dw g # Size Drawn B y Rev.
Operating Manual - VCM-88, VCM-88E, RD-8, RW-8 Level Contr ollers 18 123456 78 A B C D E 8 7 6 5 4 3 2 1 E D C B A B APPROVED: Dw g # Size Drawn B y Rev.
19 Operating Manual - VCM-88, VCM-88E, RD-8, RW-8 Level Contr ollers 1 2 3 45 A B C D 5 4 3 2 1 D C B A A APPROVED: Dwg # Size Drawn By Date Rev. B 10s5320b-2.
Operating Manual - VCM-88, VCM-88E, RD-8, RW-8 Level Contr ollers ASHLY AUDIO INC. 847 Holt Road Webster, NY 14580-9103 Phone: (585) 872-0010 Fax: (585) 872-0739 Toll Free (800) 828-6308 www.ashly.com © 2004 by Ashly Audio Corporation. All rights reserved worldwide.
An important point after buying a device Ashly VCM-88 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Ashly VCM-88 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Ashly VCM-88 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Ashly VCM-88 you will learn all the available features of the product, as well as information on its operation. The information that you get Ashly VCM-88 will certainly help you make a decision on the purchase.
If you already are a holder of Ashly VCM-88, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Ashly VCM-88.
However, one of the most important roles played by the user manual is to help in solving problems with Ashly VCM-88. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Ashly VCM-88 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
