Inter-m VCA-100 User manual

VCA-100 Wall Volume Controller
Operation
Manual
VCA-100_E_WHT-A901L_WBT-A901L(90*160)_new 14. 4. 15. 오전

Contents
Welcome
Warning................................................................................1
Unpacking............................................................................2
Installation
Environment.........................................................................2
Important Safety Instructions ...............................................2
Features..................................................................................4
Front panel and functions .....................................................5
Rear panel and functions .......................................................6
Applications ............................................................................8
Caution .................................................................................11
Specifications .......................................................................12
Service
Procedures.........................................................................13
Schematic ..........................................................................13
Parts List............................................................................13
Variations and Options ........................................................13
Warranty ..............................................................................13
VCA-100_E_WHT-A901L_WBT-A901L(90*160)_new 14. 4. 15. 오전

1
VCA-100(WALL VOLUME CONTROLLER)
Welcome /&01.-"+ 5&+$.,& 2. 7.3 '0., 2)& ,"-"(&,&-2 "-%
&,/+.7&&1.'-2&0
All of the co-workers here at Inter-M are dedicated to providing
excellent products with inherently good value, and we are
delighted you have purchased one of our products.
We sincerely trust this product will provide years of satisfactory
service, but if anything is not to your complete satisfaction, we
will endeavor to make things right.
Welcome to Inter-M, and thank you for becoming part of our
worldwide extended family!
RISK OF ELECTRIC S OCK
DO NOT OPEN

CAUTION: TO REDUCE T E RISK OF ELECTRIC S OCK.
DO NOT REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

To prevent fire or shock hazard, do not expose the unit to rain or moisture.
This symbol is intended to alert the user to the presence of
uninsulated “dangerous voltage” within the product’s
enclosure that may be of sufficient magnitude to constitute a
risk of electric shock to persons.
This symbol is intended to alert the user to the presence of
important operation and maintenance (servicing) instructions
in the literature accompanying the appliance.
Caution: These servicing instructions are for use by qualified service
personnel only. To reduce the risk of electric shock, do not any
perform any servicing other than that contained in the operating
instructions unless you are qualified to do so.
Attentions: Pour prévenir les chocs électriques ne pas utiliser cette fiche
polarisée avec un prolongateur, une prise de courant on une
autre sortie de courant, sauf si les lames peuvent étre
insérées à fond sans en laisser aucune partie à découvert.
Warning*Do not install this equipment in a confined space such as a book case or similar unit.
*The apparatus shall not be exposed to dripping or splashing and no objects filled with liquids, such vases, shall
be placed on the apparatus.
*Worded: “WARNING FOR YOUR PROTECTION PLEASE READ T E FOLLOWING-WATER AND
MOISTURE: Unit should not be used near water(e.g. near a bathtub, washbowl, kitchen sink, laundry tub, in a
wet basement, or near a swimming pool, etc). Care should be taken so than objects do not fall and liquids are
not spilled into the enclosure through openings.”
VCA-100_E_WHT-A901L_WBT-A901L(90*160)_new 14. 4. 15. 오전

2
VCA-100(WALL VOLUME CONTROLLER)
Unpacking
Although your VCA-100 module is neither complicated nor
difficult to operate, we recommend you take a few minutes to
read this brief manual and familiarize yourself with the important
information regarding product features, setup and operation.
As with most electronic devices, we strongly recommend you
retain the original packaging. In the unlikely event the product
must be returned for servicing, the original packaging (or
reasonable equivalent) is required.
Installation
-4*0.-,&-2
Never place this product in an environment which could alter its
performance or reduce its service life. Such environments
usually include high levels of heat, dust, moisture, and vibration.
,/.02"-2"'&27-1203$2*.-1
1. Read these instructions.
2. Follow all instructions.
3. Keep all warnings.
4. Do not use this apparatus near water.
5. Clean only with a damp cloth.
6. Do not block any of the ventilation openings.
7. Install in accordance with the manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat
registers, stoves, or other apparatus (including amplifiers) that
produce heat.
9. Do not defeat the safety purpose of the polarized or
grounding type plug. A polarized plug has two blades with
one wider than the other. A grounding type plug has two
blades and a third grounding prong. The wide blade or the
third prong is provided for your safety. When the provided
plug does not fit into your outlet, consult an electrician for
replacement of the obsolete outlet.
VCA-100_E_WHT-A901L_WBT-A901L(90*160)_new 14. 4. 15. 오전

3
VCA-100(WALL VOLUME CONTROLLER)
10. Protect the power cord from being walked on or pinched
particularly at plugs, convenience receptacles, and the point
where they exit from the apparatus.
11. Use only the attachments/accessories specified by the
manufacturer.
12. Use only with a cart, stand, tripod, bracket, or table specified
by the manufacturer, or sold with the apparatus. When a cart
is used, use caution when moving the cart/apparatus
combination to avoid injury from tip-over.
13. Unplug this apparatus during lightning storms or when
unused for long periods of time.
14. Refer all servicing to qualified service personnel. Servicing
is required when the apparatus has
been damaged in any way, such as
power supply cord or plug is damaged,
liquid has been spilled or objects have
fallen into the apparatus, the apparatus
has been exposed to rain or moisture,
does not operate normally, or has
been dropped.
S3125A
VCA-100_E_WHT-A901L_WBT-A901L(90*160)_new 14. 4. 15. 오전

4
VCA-100(WALL VOLUME CONTROLLER)
Features■■

VCA (Voltage Control Amplifier) is circuit whose
volume is set by the voltage level of a control
signal, and allows controlling the remote volume
without noise by using the VCA control.
This is VCA controller which enables to operate
the remote volume control without any noise
caused by the connection wire through connecting
the main device adopting VCA control function
with the VCA control terminal of the VCA
controller.
■■
! 
■■

■■

- DSA-100DV
- MA-206/212/224
- MA-206U/212U/224U
- PMU-60/120/240/360/480/600
- PMU-60N/120N/240N/360N/480N/600N
VCA-100_E_WHT-A901L_WBT-A901L(90*160)_new 14. 4. 15. 오전 10:15 페이지 7

5
VCA-100(WALL VOLUME CONTROLLER)
2
1
Front panel and functions

.+3,&$.-20.++&0
This is Volume controller for channel #1 and #2,
and if the volume controller turns clockwise the
system's volume are at the maximum.

"++,.3-2*-().+&
VCA-100_E_WHT-A901L_WBT-A901L(90*160)_new 14. 4. 15. 오전 10:15 페이지 8

6
VCA-100(WALL VOLUME CONTROLLER)
1
Rear panel and functions

$.-20.+$.--&$2*.-2&0,*-"+
The connection terminal of VCA controller is in
order from the left; V2, C2, G, C1, V1.
Please refer the silk label on the bottom of PCB.
The volume with 10kΩ B curve is wired as below.
If the volume is set to maximum by turning the
volume control completely clock wise, the
V2 C2 G C1 V1
VCA-100_E_WHT-A901L_WBT-A901L(90*160)_new 14. 4. 15. 오전 10:15 페이지 9

7
VCA-100(WALL VOLUME CONTROLLER)
impedance of C2~G and C1 ~ G is 0Ω, and C2 ~
V2 and C1 ~ V1 become 10kΩ.
If the volume is set to minimum by turning the
volume control completely counter-clock wise, the
impedance of C2 ~ G and C1 ~ G is 10kΩ, and C2
~ V2 and C1 ~ V1 become 0Ω.
8 "32*.-  Unplug the main device in case the
VCA-100 is connected and disconnected to the
main device.
.+2"(&.-20.+,/+*'*&0'3-$2*.-
VCA (Voltage Control Amplifier) is the circuit
whose volume is set by the voltage level of a
control signal, and allows controlling the remote
volume without noise by using the VCA control.
This is VCA controller which enables to operate the
remote volume control without any noise caused
by the connection wire through connecting the
main device adopting VCA control function with the
VCA control terminal of the VCA controller.
CH 2minmaxCH 1minmaxV1
C1GC2V2
VCA-100_E_WHT-A901L_WBT-A901L(90*160)_new 14. 4. 15. 오전 10:15 페이지 10

8
VCA-100(WALL VOLUME CONTROLLER)
INPUT 1
AC INPUT
SPEAKER OUT
REMOTE
POWER
VCA CONTROL
2CHBRIDGE
V1C1GC2V2
MODE
ONOFF
HPF
+4dBu - 20dBu
GAIN
OFF
REMOTE
ON
POWER
CLASS2 WIRING G
INPUT 2
G
CH 24Ω 4Ω
8Ω
CH 1
BRIDGE
V1C1GC2V2
VCA-100
DSA-100DV
Applications
.--&$2*.-.'"-%
.-$300&-$7.-20.+.'25.$)"--&+1
If the volume is set to MAX by turning the volume
control completely clock wise,
C1 / C2 of volume are placed at G and the volume of
main device is maximized.
If the volume is set to MIN by turning the volume
control completely counter-clock wise,
C1 / C2 of volume are placed at V1 / V2 and the
volume of main device is minimized.
VCA-100 Port DSA-100DV Port
V2 V2
C2 C2
G G
C1 C1
V1 V1
VCA-100_E_WHT-A901L_WBT-A901L(90*160)_new 14. 4. 15. 오전 10:15 페이지 11

9
VCA-100(WALL VOLUME CONTROLLER)
INPUT 1
AC INPUT
SPEAKER OUT
REMOTE
POWER
VCA CONTROL
2CHBRIDGE
V1C1GC2V2
MODE
ONOFF
HPF
+4dBu - 20dBu
GAIN
OFF
REMOTE
ON
POWER
CLASS2 WIRING G
INPUT 2
G
CH 24Ω 4Ω
8Ω
CH 1
BRIDGE
V1C1GC2V2V1C1GC2V2
VCA-100CH 2VCA-100CH 1DSA-100DV
Applications
.--&$2*.-.'"-%
-%*4*%3"+$)"--&+$.-20.+
VCA-100 Port for C 1 DSA-100DV Port
No Connect
No Connect
G G
C1 C1
V1 V1
VCA-100 Port for C 2 DSA-100DV Port
V2 V2
C2 C2
G G
No Connect
No Connect
VCA-100_E_WHT-A901L_WBT-A901L(90*160)_new 14. 4. 15. 오전 10:15 페이지 12

10
VCA-100(WALL VOLUME CONTROLLER)
V1C1GC2V2
VCA-100
MA SERIES
VCA + VCA -
.--&$2*.-.'1&0*&11&0*&1"-%
1&0*&1
Plug the VCA control terminal of main device into the
terminal of VCA-100 which has the MAX resistance
10kΩ (clock wise) and the MIN 0Ω (counter clock
wise).
As shown in figure, connect C1 and V1 of the
VCA-100 into VCA+ and VCA- of main device.
8"32*.-
The volume control range by using VCA of DSA-
100DV, MA series, PMU series, and PMU-N series
is up to the Minimum of front panel volume
controller.
To expand the volume control range, increase the
value of front panel volume controller.
While the proper volume is adjusted by VCA and the
VCA control terminal is dispatched, the volume
control by VCA increases once and the main device
can be the volume control of front panel.
Therefore do not disconnect the VCA control
terminal in use.
ApplicationsVCA-100_E_WHT-A901L_WBT-A901L(90*160)_new 14. 4. 15. 오전 10:15 페이지 13

11
VCA-100(WALL VOLUME CONTROLLER)
Caution
■■
)&$"32*.-1'.0$.--&$2*.-.'"-%

1. Inter-M recommends using shield cable for the stable
operation.
2. Use the thick wire as possible.
If the wire is not sufficiently thick, it may not be possible
to maximum and minimum volume control.
■■
"32*.-'.0$.--&$2*-(2.1&0*&1
1&0*&1"-%1&0*&1
Use the thick connection wire as possible.
If the wire is not sufficiently thick, it may not be possible to
maximum volume control.
■■
"6*,3,$.-20.+%*12"-$&
- Maximum control distance varies depending on the
thickness of cable.
- Install it less than maximum distance with refer to the
below table.
$.--&$2*.-$"#+& "6*,3,%*12"-$&
AWG 20 Cable 800 M
AWG 22 Cable 500 M
AWG 24 Cable 300 M
VCA-100_E_WHT-A901L_WBT-A901L(90*160)_new 14. 4. 15. 오전 10:15 페이지 14

12
VCA-100(WALL VOLUME CONTROLLER)
Specifications
8*,&-1*.-1
114.3
69.8 42
33
5

Internal volume 10kΩ B Curve 2 volume
Operating
temperature -10℃ ~ +40℃
Operating
umidity 0% ~ 90%
Weight (SET) 71g / 0.16Ib
Dimensions (SET) 69.8(W) x 114.3( ) x 33(D)mm
2.75(W) x 4.5( ) x 1.3(D)in
VCA-100_E_WHT-A901L_WBT-A901L(90*160)_new 14. 4. 15. 오전 10:15 페이지 15

13
VCA-100(WALL VOLUME CONTROLLER)
Service
0.$&%30&1
Ensure the problem is not related to operator error, or
external system devices, Once it is certain that the
problem is related to the product contact your warranty
provider as described in the warranty section of this
manual.
$)&,"2*$
A Schematic is available by contacting your warranty
provider.
"021*12
A Parts List is available by contacting your warranty
provider.
Warranty
Warranty terms and conditions vary by country and may
not be the same for all products. Terms and conditions of
warranty for a given product may be determined first by
locating the appropriate country which the product was
purchased in, then by locating the product type.
To obtain specific warranty information and available
service locations contact Inter-M directly or the authorized
Inter-M Distributor for your specific country or region.
VCA-100_E_WHT-A901L_WBT-A901L(90*160)_new 14. 4. 15. 오전 10:15 페이지 16


April 2014 133627
Inter-M, Ltd. (Korea) began operations in 19 3.
Since then, Inter-M has grown to become one of the largest manufacturers
of professional audio and commercial sound electronics equipment in the world.
Inter-M has gained worldwide recognition for its own branded products,
as well as private label manufacturing of electronics sold under other names (OEM).
The company is no longer just a Korean company, but rather a global company
that is truly international in scope, with factories and offices in Korea and China,
and sales and marketing operations located in Japan, Europe, and the U.S.A.
With more than 50 employees around the globe,
Inter-M is well-poised for further growth and expansion.
INTER-M AMERICAS, INC.
1 EAST BEACON LIGHT LANE CHESTER, PA USA 19013-4409
TEL : [phone], FAX : [phone]
Home Page : http://www.inter-m.net, E-mail : [email protected]
INTER-M Corporation
SEOUL OFFICE : 719, DOBONG-RO, DOBONG-GU, SEOUL, KOREA
TEL : [phone]~ , FAX : [phone]
Home Page : http://www.inter-m.com, E-mail : [email protected]
VCA-100_E_WHT-A901L_WBT-A901L(90*160)_new 14. 4. 15. 오전