Arrakis Systems ARC-10 User manual

ARC-10 &ARC-15
Service Manual
ARRAKIS
advancedradio
Rev 1.0.4
Phone
Pgm
Aud
Cue
Talk to
Caller
Pgm
Aud
Cue
Pgm
Aud
Cue
Pgm
Aud
Cue
Pgm
Aud
Cue
Pgm
Aud
Cue
Pgm
Aud
Cue
Pgm
Aud
Cue
Pgm
Aud
Cue
Pgm
Aud
Cue
Air
Pgm
Aud
Monitor
Head
phone
Advanced
Radio
Console
Arrakis Systems
Arrakis Systems inc.
Monitor & Headphone
Input Select
Cue
Pgm
Aud
Talk
Pgm
Aud
Cue
Pgm
Aud
Cue
Pgm
Aud
Cue
Pgm
Aud
Cue
ARC-15
Mic
Mic 1
Mic 2 Phone
Pgm
Aud
Talk
Talk to
Caller
Pgm
Aud
Talk
Pgm
Aud
Cue
Pgm
Aud
Cue
Pgm
Aud
Cue
Pgm
Aud
Cue
Pgm
Aud
Cue
Pgm
Aud
Cue
Pgm
Aud
Cue
Pgm
Aud
Cue
Air
Pgm
Aud
Monitor
Head
phone
Advanced
Radio
Console
Arrakis Systems
Monitor & Headphone
Input Select
Cue
ARC-10
Arrakis Systems inc.
1.1

Arrakis Systems inc. is located at Arrakis Systems inc
6604 Powell Street
Loveland, Colorado
80538
Business Hours: 8:00am - 4:30pm mountain time
Contact: Voice: 970-461-0730
Fax: [phone]
email: [e-mail]
web: arrakis-systems.com
Having difficulty contacting Arrakis?
Refer to the website at... www.arrakis-systems.com
for current contact information
How to contact Arrakis Systems
ARRAKIS
advancedradio
1.2

16. A Product and Cart Combination should be
moved with care. Quick stops, excessive force,
and uneven surfaces may cause the product and
the cart combination to overturn.
17. Servicing. Refer all servicing to qualified
servicing personnel.
18. Damage Requiring Service. Unplug this
product from the wall AC outlet and refer
servicing to qualified service personnel under
the following conditions:
a. When the AC cord or plug is damaged.
b. If liquid has been spilled or objects have
fallen into the product.
c. If the product has been exposed to rain or
water.
d. If the product does not operate normally
(following operating instructions).
e. If the product has been dropped or
damaged in any way.
f. When the product exhibits a distinct change
in performance. This indicates a need for
service.
19. Replacement Parts. When replacement parts
are required, be sure the service technician has
used replacement parts specified by the
manufacturer or that have the same
characteristics as the original parts. Unauthorized
substitutions may result in fire, electric shock, or
other hazards.
20. Safety Check. Upon completion of any repairs
to this product, ask the service technician to
perform safety checks to determine that the
product is in proper operating condition.
21. Cleaning. Do not use liquid cleaners or aerosol
cleaners. Use only a damp cloth for cleaning.
1. Read All Instructions. All safety and operating
instructions must be read before operating the
product.
2. Retain All Instructions. All safety and
operating instructions must be retained for
future reference.
3. Heed All Warnings. All warnings on the
product and those listed in the operating
instructions must be adhered to.
4. Follow All Instructions. All operating and
product usage instructions must be followed.
5. Heat. This product must be situated away from
any heat sources such as radiators, heat
registers, stoves, or other products (including
power amplifiers) that produce heat.
6. Ventilation. Slots and openings in the product
are provided for ventilation. They ensure reliable
operation of the product, keeping it from
overheating. These openings must not be
blocked nor covered during operation. This
product should not be placed into a rack unless
proper ventilation is provided through
following the manufacturer’s recommended
installation procedures.
7. Water and Moisture. Do not use this product
near water—for example; near a bath tub, wash
bowl, kitchen sink or laundry tub; in a wet
basement; or near a swimming pool or the like.
8. Attachments. Do not use any attachments not
recommended by the product manufacturer
as they may cause hazards.
9. Power Sources. This product must be
operated from the type of power source
indicated on the marking label and in the
installation instructions. If you are not sure of
the type of power supplied to your facility,
consult your local power company.
10. Grounding and Polarization. This product is
equipped with a polarized AC plug with integral
safety ground pin. Do not defeat the safety
ground in any manner.
11. Power Cord Protection. Power supply cords
must be routed so that they are not likely to be
walked on nor pinched by items placed upon
or against them. Pay particular attention to the
cords at AC wall plugs and convenience
receptacles, and at the point where the cord
plugs into the product.
12. Lightning. For added protection for this
product during a lightning storm, or when it is
left unattended and unused for long periods of
time, unplug it from the AC wall outlet. This will
prevent damage to the product due to
lightning and power line surges.
13. Overloading. Do not overload AC wall outlets,
extension cords, or integral convenience outlets
as this can result in a fire or electric shock hazard.
14. Object and Liquid Entry. Never push objects
of any kind into this product through openings
as they may touch dangerous voltage points
or short-out parts that could result in a fire or
electric shock. Never spill liquid of any kind on
the product.
15. Accessories. Do not place this product on an
unstable cart, stand, tripod, bracket, or table. The
product may fall, causing serious damage to a
child or adult, and serious damage to the
product. Any mounting of the product needs
to follow manufacturer’s installation
instructions.
S a f e t y I n s t r u c t io n s
1.3

RISK OF
ELECTRIC SHOCK
DO NOT OPEN
WARNING— This equipment generates, uses and can
radiate radio frequency energy. If not installed and used in
accordance with the instructions in this manual it may cause
interference to radio communications. It has been tested and
found to comply with the limits for a Class A computing device
(pursuant to Subpart J of Part 15 FCC Rules), which are designed
to provide reasonable protection against such interference when
operated in a commercial environment. Operation of this equip-ment
in a residential area is likely to cause interference, in which
case the user, at his own expense, will be required to take what-ever
measures may be required to correct the interference.
The Exclamation Point symbol, within an equilateral
triangle, alerts the user to the presence of important
operating and maintenance (servicing) instructions in
product literature and instruction manuals.
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
DO NOT EXPOSE THE CONSOLE TO RAIN OR MOISTURE.
WARNING: SHOCK HAZARD - DO NOT OPEN
AVIS: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT
REMOVE ANY COVER OR PANEL. NO USER SERVICEABLE PARTS
INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
Hazard / Warning Label
Identification
The Lightning Flash With Arrowhead symbol, within an
equilateral triangle, alerts 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.
C AU T I O N
1.4

Warranty
This console carries a manufacturer‘s warranty subject to the following guidelines and limitations:
A) Except as expressly excluded herein, Arrakis Systems inc. (“Seller”) warrants equipment of its own manufacture against faulty workmanship
or the use of defective materials for a period of one (1) year from date of shipment to Buyer. The liability of the Seller under this Warranty is limited to
replacing, repairing or issuing credit (at the Seller’s discretion) for any equipment, provided that Seller is promptly notified in writing within five (5)
days upon discovery of such defects by Buyer, and Seller‘s examination of such equipment shall disclose to its satisfaction that such defects existed
at the time shipment was originally made by Seller, and Buyer returns the defective equipment to Seller’s place of business in Loveland, Colorado,
packaging and transportation prepaid, with return packaging and transport guaranteed.
B) Equipment furnished by Seller, but manufactured by another, shall be warranted only to the extent provided by the other manufacturer.
C) Thermal filament devices (such as lamps and fuses) are expressly excluded from this warranty.
D) The warranty period on equipment or parts repaired or replaced under warranty shall expire upon the expiration date of the original
warranty.
E) This Warranty is void for equipment which has been subject to abuse, improper installation, improper operation, improper or omitted mainte-
nance, alteration, accident, negligence (in use, storage, transportation or handling), operation not in accordance with Seller‘s operation and service
instructions, or operation outside of the environmental conditions specified by Seller.
F) This Warranty is the only warranty made by Seller, and is in lieu of all other warranties, including merchantability and fitness for a particular
purpose, whether expressed or implied, except as to title and to the expressed specifications contained in this manual. Seller’s sole liability for any
equipment failure or any breach of this Warranty is as set forth in subparagraph A) above; Seller shall not be liable or responsible for any business
loss or interruption, or other consequential damages of any nature whatsoever, resulting from any equipment failure or breach of this warranty.
1.5

General Repair Considerations
WARNING
The console should be repaired by qualified, professional, & experienced, audio technicians ONLY. Before beginning any type of repair or
opening the console CALL Arrakis customer support for recommendations.
DESIGNED FOR MODULAR PART REPLACEMENT
The ARC series console is designed for modular replacement rather than repair. The power supply is external and plug in. The rotary faders are plug in. Most ICs are plug in, and a physical board layout is provided
with descriptions of the functions of each IC. ICs can be individually replaced to test for functionality. A small amount of disassembly is required. Diagrams on the following pages explain the required disassembly.
PC BOARD COMPONENT LEVEL REPAIR
If possible, PC board component level repair requiring soldering should be performed at the factory. In particular, replacement of slide faders and switches should be performed at the factory. If the repair must
be made in the field, then extreme care must be taken to not damage the PC board or other components. Arrakis can not warranty non-factory service.
POWER SUPPLY
The power supply is a sealed module that must be replaced in whole if there is a problem.
REPEATED EQUIPMENT FAILURES
If a specific part of the console is failing regularly, it is likely that it is being subject to unusual stresses.
Examples are;
(1) Switch or fader failure- rough physical treatment
(2) Mic channel IC failure- static discharge to mic
(3) Input op amp failure- lightning, power surge, or other transient on this cable
(4) Output op amp failure- lightning, power surge, or other transient on this cable
(5) Power Supply failure- lightening, power surge, or other transient on the AC power line
SUGGESTED REPAIR PROCEDURES
(1) NO AUDIO OUT OF ONE INPUT CHANNEL- (Swap Cables) Be certain that the problem is in the console itself. If mic channel two doesn’t function but mic channel one functions properly, then plug the cable from
the good mic into the channel that you suspect to be bad. If the channel that you suspect to be bad now functions, then the problem is external to the console and is in the source or the wiring. This is a very fast
and easy way to test your system.
(2) VU METERS MOVE BUT NO AUDIO OUT OF THE CONSOLE- The VU meters measure the actual output of the console itself. If the meters move but no audio is present, the problem is after the console output
and is in the following signal chain. Plug a set of headphones into the output of the console and listen to the Program output to confirm this.
(3) LOUD LOW FREQUENCY HUM IN AUDIO- Many years ago this would mean a power supply failure. In today’s electronics, this is an installation problem such as a ground loop. To confirm the problem is not in
the console, remove ALL wiring from the console and connect a pair of headphones to the output you are testing. The hum should be absent. All wiring must be removed and headphones only used. A very common
problem is for an audio power amp and speakers to create the ground loop with the console.
(4) NO AUDIO OUT OF THE MONITORS- Be certain that the monitor system is not muted due to a mic channel being on or talkback being activated.
1.6

Opening the Console
WARNING
The console should be repaired by qualified, professional, & experienced, audio technicians ONLY. Before beginning any type of repair
or opening the console CALL Arrakis customer support for recommendations.
ACCESSING THE MOTHERBOARD
The motherboard is accessed from the bottom of the console. Six screws must be removed from the bottom panel to have access to the console electronics for test and IC replace-
ment. Be careful to not scratch the console when turning the console over.
REMOVING THE MOTHERBOARD
The motherboard is attached on the top of the front panel (slide fader screws) and with screws on the bottom of the motherboard, requiring access to the inside of the console. When
replacing the motherboard, be certain to replace all of the screws so that switches and faders will operate properly.
ACCESSING THE INTERIOR OF THE VU METER PANEL
The VU meter panel is opened by removing the screw at the left and right front of the panel.
ACCESS SCREWS
Arrakis Systems inc.
1.7

Replacing Slide Faders, Switches, and other parts
Slide faders and switches are soldered onto the PC board and should be replaced at the factory if at all possible. The procedure requires proper tools, and it
can be difficult to remove the parts without damaging traces or pads on the PC board. Also, the switches are very sensitive to temperature and duration during
the soldering process and can be electronically damaged or destroyed when being soldered. If a slide fader, switch, or other part must be replaced in the field,
then extreme care must be taken.
Tools required:
1) Hand held solder sucker (stranded solder wick is not suggested)
2) Temperature controlled soldering iron with pencil tip (soldering guns should not be used)
Procedure:
1) Suck the solder from all holes until the damaged component is entirely free from the PC board. Remove the damaged part.
2) Place the new part onto the PC board. Slide faders and switches (and some other parts) ARE oriented and MUST be replaced in the correct orientation.
3) Carefully solder the new part to the PC board.
a) Clean the tip of the soldering iron on a wet sponge.
b) Tin the tip of the soldering iron (cover the tip of the soldering iron with a small amount of solder).
c) Set the soldering iron to 734 degrees Fahrenheit (390 degrees celsius).
d) Touch the tip of the ‘soldering iron’ to the junction of the PC board pad AND the component lead.
e) Immediately touch the ‘solder’ to the junction of the soldering iron and the PC board pad.
f) Flow only enough solder to fill the hole. Immediately remove the soldering iron from the part.
g) Do not keep the soldering iron on the part for more than 2 seconds.
h) Clean the solder rosin from the PC board if required. (See Note #1 below)
Note #1: Arrakis uses aqueous core (water soluble) solder that requires the solder joint to be cleaned by water after soldering. Aqueous core solder is acidic
and must be cleaned so as to not damage the PC board over time. Rosin core solder is not water soluble and requires a flux remover if it is to be cleaned. The
rosin residue however does not have to be removed for rosin core solder.
Warranty: Arrakis can only warranty service performed at the factory. All field service is performed at the customer’s risk.
1.8

Phone
Pgm
Aud
Cue
Talk to
Caller
Pgm
Aud
Cue
Pgm
Aud
Cue
Pgm
Aud
Cue
Pgm
Aud
Cue
Pgm
Aud
Cue
Pgm
Aud
Cue
Pgm
Aud
Cue
Pgm
Aud
Cue
Pgm
Aud
Cue
Air
Pgm
Aud
Monitor
Head
phone
Advanced
Radio
Console
Arrakis Systems
Arrakis Systems inc.
Monitor & Headphone
Input Select
Cue
Pgm
Aud
Talk
Pgm
Aud
Cue
Pgm
Aud
Cue
Pgm
Aud
Cue
Pgm
Aud
Cue
ARC-15
Mic
Replacing Rotary Faders
Pry cover from
top of the Knob
to reveal a lock
nut. Unscrew the
lock nut to remove
the knob
KNOB
COVER
KNOB
LOCK
NUT
All 3 rotary faders are in a single wiring harness that plugs into the motherboard. The
entire harness should be replaced with all three pots. Contact the factory for a replace-
ment harness.
To remove a rotary fader
(1) Remove the knob cover as illustrated
(2) Remove the nut and nut plate.
(3) The pot will now remove from the rear of the
front panel.
(4) Unplug the pot from the motherboard.
To put a new rotary fader in place:
Reverse the removal procedure
REMOVING THE KNOB
Mic 1
Mic 2 Phone
Pgm
Aud
Talk
Talk to
Caller
Pgm
Aud
Talk
Pgm
Aud
Cue
Pgm
Aud
Cue
Pgm
Aud
Cue
Pgm
Aud
Cue
Pgm
Aud
Cue
Pgm
Aud
Cue
Pgm
Aud
Cue
Pgm
Aud
Cue
Air
Pgm
Aud
Monitor
Head
phone
Advanced
Radio
Console
Arrakis Systems
Monitor & Headphone
Input Select
Cue
ARC-10
Arrakis Systems inc.
1.9

Replacing ICs
ICs must be replaced with care. Most ICs in the console are socketed so that they can be replaced.
When replacing an IC, be careful to not bend legs under the IC or outside the socket. Be extremely careful to not shock an IC or the PC board with a static dis-
charge. In some cases, you must use a grounded arm or anklet if there is a possibility of a static discharge.
In all cases, retain the old IC because it may be found to not be damaged.
1.10

Factory Service
Technical Questions
Arrakis Systems maintains a staff of friendly broadcast engineers, design engineers, and technicians who have many years of in depth field experience in broadcast-
ing. All of our technical resources are available to you to answer installation questions, solve problems, and repair equipment. If you have a question or problem,
please feel free to call us. We can not solve every problem, but our people are here to try.
Our customer support department is open from: 8AM - 4:30PM, Monday -Friday (except for Holidays)
Voice: 970-461-0730
Fax: [phone]
email: [e-mail]
IMPORTANT: Collect calls will not be accepted
Warranty Service Procedure for the ARC console hardware
Arrakis Systems assumes that its customers have on staff (or access to) competent technical personnel and adequate test equipment.
If a product fails, Arrakis will first seek to ascertain the problem over the phone and solve it at the modular replacement level where we find the specific part(s) that have failed and repair or replace them. This is
the least expensive and time consuming solution for you. Depending on the circumstances and at our discretion, Arrakis will replace the specific PC board suspected to be at fault. If replacing PC boards does not
resolve the problem, then the console is to be returned to the factory where it will we repaired and returned to you. Repair time at the factory is normally two week days. If the customer chooses to repair the
console in the field, then Arrakis will, at its sole discretion, send replacement parts under warranty. Arrakis can not warranty labor performed in the field.
Shipping- The customer is responsible for payment for shipping to the factory. Parts returned to the factory freight collect will be refused. Return shipping over and above the cost of UPS ground will be born by
the customer. In the case of international shipments, all cost of shipping and duties are born by the customer, both to and from the factory.
Under no circumstances will Arrakis replace a defective console with a replacement console.
IMPORTANT- Under no circumstances does Arrakis take any responsibility for non-factory technical expenses.
1.11

Warranty Replacement of Parts
To have a part replaced under warranty, you must:
1) Provide a valid product serial number that is within the warranty period
2) Contact the Arrakis customer service department and describe what parts need replacement and the circumstances of the failure. (The customer service department
may require on site test by your technician to confirm the part replacement is appropriate for your problem.)
3) A Return Merchandise Authorization Number (RMA #) will be issued when a part s to be returned to the factory.
4) Return ALL defective parts to the factory (shipping prepaid) to the attention of the “Customer Service Departent” with a letter including your name, address, call letters,
serial number, date, and valid RMA #.
5) Parts replaced under warranty will be shipped at Arrakis expense by UPS ground. Any expense over and above UPS ground will be born by the customer.
IMPORTANT- If the defective parts are not returned to the factory within 30 days, you will be invoiced for them and it will be assumed that they do not fall under warranty.
Further customer service will be denied until the defective parts are returned of paid for.
Spare Parts (not provided with the ARC-10 or ARC-15 consoles)
A spare parts kit may be provided with the console. These parts are provided in case of emergency failure and normal infant mortality. These parts, when used to replace
failures, are not replaced under warranty.
Purchased Parts
An Arrakis customer may purchase spare or replacement parts from the factory. The cost of the parts will include a service charge, the cost for the parts, and the cost
of the shipping.
Parts may be purchased by:
1) C.O.D. shipping
2) Valid and approved Credit Card (below our current credit limit)
3) Prepaid by company check (shipment after check clears the bank)
4) Wire transfer of funds
5) Through an Arrakis authorized dealer
Arrakis does not sell items on open account.
IMPORTANT- Non payment or late payment for parts will result in refusal of further customer service until the problem is resolved.
1.12

F
A
D
E
R
PGM
SW
AUD
SW
TALK
SW
PGM AUD TALK
ON
Logic
Logic
Logic
F
A
D
E
R
PGM
SW
AUD
SW
CUE
SW
PGM AUD CUE
ON
Logic
Logic
Logic
F
A
D
E
R
PGM
SW
AUD
SW
CUE
SW
PGM AUD CUE
ON
Logic
Logic
Logic
F
A
D
E
R
PGM
SW
AUD
SW
CUE
SW
PGM AUD CUE
ON
Logic
Logic
Logic
Trim
Trim
TALK
Trim
F
A
D
E
R
M
U
T
E
F
A
D
E
R
M
U
T
E
F
A
D
E
R
PGM
AUD
AIR
L
O
G
I
C
FET
SW
Trim
Trim
C
O
D
E
C
Stt/Stp
Trim
Trim
Stt/Stp
CONTROL ROOM
MONITOR OUTPUT
to powered speakers
(-10dBu RCA phono)
INTERNAL CUE SPEAKER
in VU meter bridge
HEADPHONE OUTPUT
for 8 ohm or Hi-Z headphones
(1/4" Headphone Jack)
AIR MONITOR INPUT
(-10 dBu RCA phono)
LOGIC OUTPUT (15 pin D-sub)
1) Control Room Mute Logic
2-8) Ch 3,4,5,6,7,8,10 On-off logic
9) Autocue logic
10) Talkback to Control Room
11) Talkback from Studio to Cue
12) Studio Monitor L out
13) Studio Monitor R out
14) +12VDC
15) Ground
PROGRAM OUTPUT- BALANCED
(+4 dBu XLR)
PROGRAM OUTPUT- UNBALANCED
(-10dBu RCA phono)
AUDITION OUTPUT- UNBALANCED
(-10dBu RCA phono)
OUTPUT TO PHONE HYBRID
(balanced, +4 dBu XLR)
CUE INPUT
for Cueing a PC or Talkback
(-10dBu, 1/8" Headphone Jack)
CHANNELS 1 & 2
MIC INPUT
balanced
(-50dBu, XLR)
48V PHANTOM
POWER
(2mm PLUG)
CHANNELS 3 - 9
STEREO LINE
unbalanced
-10 dBu
(RCA phono)
CHANNEL 9 (optional)
LOGIC
RS232 serial
connection to PC
(9 pin D-SUB)
PC PLAY / RECORD
USB connection
to WINDOWS PC
(USB connector)
CHANNEL 10
INPUT FROM
PHONE HYBRID
balanced, mono
(+4 dBu XLR)
HYBRID LOGIC
On-off
(RJ45) AUDITION MONO MIX OUTPUT
(unbalanced, -10dBu, RCA phono)
PROGRAM MONO MIX OUTPUT
(unbalanced, -10dBu, RCA phono)
FET
SW
Cue Logic ->
Cue Sum
I
N
P
U
T
C
H
A
N
N
E
L
S
O
U
T
P
U
T
S
/
M
O
N
I
T
O
R
I
N
G
Trim
Balanced, +4 dBu,
stereo input option for
Channels 3-8 (RJ45)
FET
SW
D
B
9
D
B
1
5
Air in
Pgm in
Aud in
SW
out
Record
Play
Pwr
Pwr
Pwr
VU meter
LEFT
VU meter
RIGHT
PGM
Sum
AUD
Sum
Phone
Mix
Monitor
Selector
Talk to
Caller
Talk to
Studio PL-PR-AL-AR-Q-TB
PL-PR-AL-AR-Q-TB
L
R
L
R
L/R
L/R
L
R
L
R
L
R
L + R
L + R
L
R
L/R
NOTE #1
if this option is installed but not
being used, internal jumpers can
convert the input into a stan-
dard unbalanced, stereo, -10dBu,
line input channel (RCA phono)
NOTE #2
if a phone hybrid is not used, this channel can be
used as a standard mono channel with a balanced
+4dBu source
Trim
Trim
Jumper select
either Pgm or
Aud bus for
USB record
feed
ARC-10 Electronic Block Diagram 1.13

ARC-10 Parts Layout
+12V
led
-12V
led
-5V
led
+5V
led
Mic 1 amp
(SSM2019)
Mic 2 amp
(SSM2019)
Mic 1
In
Mic 2
In
48V
phntm
power
CH 3
In
CH4
In
CH 5
In
CH 6
In
CH7
In
CH 8
In
USB
PGM
Out (L)
PGM
Out (R)
Phone
In
Phone
Out
Phone
Logic
PGM
Out
AUD
Out
Mono
Out
Mon
Out
Air
In
CH 9
In
Cue
In
DC
Power
Mute
FET Sw
(CD4053)
Monitor
Select
FET Sw
(CD4052)
Headphone
Autocue
FET Sw
(CD4053)
Phone
Talkback
FET Sw
(CD4053)
Meter
Housing
Cable
Conn
Volume
Control
Cable
Conn
Cue
Speaker
Amp
(LM386)
Headphone
Amp
Left
(LM386)
Headphone
Amp
Right
(LM386)
Summing amps
Pgm
Aud
Cue
Mic
Talkback
Remote Logic Cable
Mon Sel Lgc
Quad ‘AND’ gate
(74AC08)
Mon Sel Lgc
Dual ‘D’ flip flop
(74AC74)
AIR In amp &
trimpots
PGM
unbal
Out
AUD
unbal
Out
Mono
Mix
Out
Monitor
Out
VU
meter
drivers
RS232 Cable
RS232 Logic
Transistors
PGM
L out
PGM
R out
Phone
Out
Phone Logic
Reed relays
& Transistors
USB Codec
(PCM2900)
12MHz
Xstal
Codec
Record
Filter
Phone
In
Codec
Output
Filter
CH 3
In
CH 4
In
CH 5
In
CH 6
In
CH 7
In
CH 8
In
Channel Input Preamps
CH 1
fader
makeup
gain
amp
CH 2
fader
makeup
gain
amp
CH 3
fader
makeup
gain
amp
CH 4
fader
makeup
gain
amp
CH 5
fader
makeup
gain
amp
CH 6
fader
makeup
gain
amp
CH 7
fader
makeup
gain
amp
CH 8
fader
makeup
gain
amp
CH 9
fader
makeup
gain
amp
CH 10
fader
makeup
gain
amp
CH 1
On Lgc
(CD4049)
CH 2
On Lgc
(CD4049)
CH 3
On Lgc
(CD4049)
CH 4
On Lgc
(CD4049)
CH 5
On Lgc
(CD4049)
CH 6
On Lgc
(CD4049)
CH 7
On Lgc
(CD4049)
CH 8
On Lgc
(CD4049)
CH 9
On Lgc
(CD4049)
CH 10
On Lgc
(CD4049)
CH 1 FET Sw
P-A-Q
(CD4053)
CH 2 FET Sw
P-A-Q
(CD4053)
CH 3 FET Sw
P-A-Q
(CD4053)
CH 4 FET Sw
P-A-Q
(CD4053)
CH 5 FET Sw
P-A-Q
(CD4053)
CH 6 FET Sw
P-A-Q
(CD4053)
CH 7 FET Sw
P-A-Q
(CD4053)
CH 8 FET Sw
P-A-Q
(CD4053)
CH 9 FET Sw
P-A-Q
(CD4053)
CH 10 FET Sw
P-A-Q
(CD4053)
CH 1
P-A-Q Lgc
(CD4049)
CH 2
P-A-Q Lgc
(CD4049)
CH 3
P-A-Q Lgc
(CD4049)
CH 4
P-A-Q Lgc
(CD4049)
CH 5
P-A-Q Lgc
(CD4049)
CH 6
P-A-Q Lgc
(CD4049)
CH 7
P-A-Q Lgc
(CD4049)
CH 8
P-A-Q Lgc
(CD4049)
CH 9
P-A-Q Lgc
(CD4049)
CH 10
P-A-Q Lgc
(CD4049)
Monitor
SW amp
Phone
SW amp
PGM
mix
amp
AUD
mix
amp
Mix the Phone
channel
with the Main
Output buses
Talk
Air
Pgm
Aud
Note
All unmarked ICs
are NE5532 op amps
CH 3CH 4CH 5CH 6CH 7CH 8
Trimpots: ARC-10BP only
Mute
Ch 2 Ch 1
Ch 9 In
Unbal/USB
L L R R
USB
REC IN
A P A P
A
/
Q
P
A
/
Q
P
CN10
CN11
CN14
CN15
CN12 CN13
1.14

Board Connector Diagram 5/21/2007Rev A
ARC Console Arrakis Systems
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Control Room Mute Logic
Channel 10 Logic
Autocue Logic (Rev D board)
Studio Monitor Left output
Channel 8 Logic
Studio Monitor Right outut
Channel 7 Logic
CR Mic audio for talkback to Studio
Channel 6 Logic
Ground
Channel 5 Logic
+12 VDC
Channel 4 Logic
Audio Input to Cue for Talkback
Channel 3 Logic
Channel 2 Logic (not used in 15 pin D-sub)
Note: connects thru ribbon cable to rear
panel 15 pin D-sub connector
CN 13- Remote Logic Cable
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Mon L in
Mon L out
Gnd
Mon R in
Mon R out
Gnd
HP L in
HP L out
Gnd
HP R in
HP R out
Gnd
Cue in
Cue out
Gnd
not used
Note: connects to monitor, headphone and
cue pots on front panel of console
CN 11- Volume Control Connector
1
2
3
4
5
6
7
8
9
Data Carrier Detect (DCD/CD) In
Receive Data Line (RD) Data
Transmit Data Line (TD) Data
Data Terminal Ready (DTR) Out
Ground
Data Set Ready (DSR) In
Request to Send (RTS) Out
Clear to Send (CTS) In
Ring Indicator (RI) In
CN12- RS232 IDC Conn.
1
2
3
4
5
6
7
8
9
ARC-10 Motherboard IDC Connector Diagrams
1
2
3
4
5
6
7
8
9
10
Not connected
Not connected
Pgm Left VU
Pgm Right VU
+5VDC
+5VDC
Ground
Ground
Not connected
Control Room Mute Logic
Note: connects thru
ribbon cable to top
VU meter panel
CN10- VU Meter IDC Conn.
Note 1: connects thru ribbon cable to rear
panel 9 pin D-sub connector for
RS232 connection to a PC
Note 2: Logic 1 = minus 3-15 VDC
Logic 0 = plus 3-15 VDC
Max load = 3-7K ohms
4 inputs to PC = CTS, DSR, DCD(CD), RI
2 outputs from PC = RTS, DTR
1
2
3
4
5
6
7
8
9
10
Not connected
Data Set Ready (DSR) In
Not connected
Request to Send (RTS) Out
Not connected
Clear to Send (CTS) In
Not connected
Not connected In
Ground
Not connected
CN
12 ribbon cable
9 Pin D-sub Connector on Back Panel
1.15

ARC-15 Electronic Block Diagram
F
A
D
E
R
PGM
SW
AUD
SW
TALK
SW
PGM AUD TALK
ON
Logic
Logic
Logic
F
A
D
E
R
PGM
SW
AUD
SW
CUE
SW
PGM AUD CUE
ON
Logic
Logic
Logic
F
A
D
E
R
PGM
SW
AUD
SW
CUE
SW
PGM AUD CUE
ON
Logic
Logic
Logic
F
A
D
E
R
PGM
SW
AUD
SW
CUE
SW
PGM AUD CUE
ON
Logic
Logic
Logic
Trim
Trim
TALK
Trim
F
A
D
E
R
M
U
T
E
F
A
D
E
R
M
U
T
E
F
A
D
E
R
PGM
AUD
AIR
L
O
G
I
C
FET
SW
Trim
Trim
C
O
D
E
C
Stt/Stp
Trim
Trim
Stt/Stp
CONTROL ROOM
MONITOR OUTPUT
to powered speakers
(-10dBu RCA phono)
INTERNAL CUE SPEAKER
in VU meter bridge
HEADPHONE OUTPUT
for 8 ohm or Hi-Z headphones
(1/4" Headphone Jack)
AIR MONITOR INPUT
(-10 dBu RCA phono)
LOGIC OUTPUT (15 pin D-sub)
1) Control Room Mute Logic
(for On Air light)
2-7) Ch 2,3,4,5,13,15 On-off logic
8) Talkback audio to Studio
9) Talkback audio from Studio
(into Cue bus)
10) Autocue logic (for TB)
11) Ch 2 Cue logic for TB
12) Studio Monitor L out
13) Studio Monitor R out
14) +12VDC
15) Ground
PROGRAM OUTPUT- BALANCED
(+4 dBu XLR)
PROGRAM OUTPUT- UNBALANCED
(-10dBu RCA phono)
AUDITION OUTPUT- UNBALANCED
(-10dBu RCA phono)
OUTPUT TO PHONE HYBRID
(balanced, +4 dBu XLR)
CUE INPUT
for Cueing a PC or Talkback
(-10dBu, 1/8" Headphone Jack)
MIC CHANNELS
MIC INPUT
balanced
(-50dBu, XLR)
48V PHANTOM
POWER
(2mm PLUG)
LINE CHANNELS
STEREO LINE
CHANNEL 14
LOGIC
RS232 serial
connection to PC
(9 pin D-SUB)
PC PLAY / RECORD
USB connection
to WINDOWS PC
(USB connector)
CHANNEL 15
INPUT FROM
PHONE HYBRID
balanced, mono
(+4 dBu XLR)
HYBRID LOGIC
On-off
(RJ45) AUDITION MONO MIX OUTPUT
(unbalanced, -10dBu, RCA phono)
PROGRAM MONO MIX OUTPUT
(unbalanced, -10dBu, RCA phono)
FET
SW
Cue Logic ->
Cue Sum
I
N
P
U
T
C
H
A
N
N
E
L
S
O
U
T
P
U
T
S
/
M
O
N
I
T
O
R
I
N
G
Trim
Balanced, +4 dBu,
stereo inputs
(RJ45)
FET
SW
D
B
9
D
B
1
5
Air in
Pgm in
Aud in
SW
out
Record
Play
Pwr
Pwr
Pwr
VU meter
LEFT
VU meter
RIGHT
PGM
Sum
AUD
Sum
Phone
Mix
Monitor
Selector
Talk to
Caller
Talk to
Studio PL-PR-AL-AR-Q-TB
PL-PR-AL-AR-Q-TB
L
R
L
R
L/R
L/R
L
R
L
R
L
R
L + R
L + R
L/R
NOTE #1
if this option is installed but not
being used, internal jumpers can
convert the input into a stan-
dard unbalanced, stereo, -10dBu,
line input channel (RCA phono)
NOTE #2
if a phone hybrid is not used, this channel can be
used as a standard mono channel with a balanced
+4dBu source
1.16

+12V
led
-12V
led
-5V
led
+5V
led
Mic4 amp
(SSM2019)
Mic 5 amp
(SSM2019)
Mic4
In
Mic5
In
48V
phntm
power
CH 8
In
CH9
In
CH10
In
CH11
In
CH12
In
CH13
In
Ch14
USB
PGM
Out (L)
PGM
Out (R)
Phone
In
Phone
Out
Phone
Logic
PGM
Out
AUD
Out
Mono
Out
Mon
Out
Air
In
CH 9
In
Cue
In
DC
Power
Mute
FET Sw
(CD4053)
Monitor
Select
FET Sw
(CD4052)
Headphone
Autocue
FET Sw
(CD4053)
Phone
Talkback
FET Sw
(CD4053)
CN11
Volume
Control
Cable Conn
Cue
Speaker Amp
(LM386)
Headphone
Amp Left
(LM386)
Headphone
Amp Right
(LM386)
Summing amps
Pgm
Aud
Cue
Mic
Talkback
CN13 Remote Logic Cable
Mon Sel Lgc
Quad ‘AND’ gate
(74AC08)
Mon Sel Lgc
Dual ‘D’ flip flop
(74AC74)
PGM
unbal
Out
AUD
unbal
Out
Mono
Mix
Out
Monitor
Out
CN12
RS232 Cable
RS232 Logic
Transistors
PGM
L out
PGM
R out
Phone
Out
Phone Logic
Reed relays
& Transistors
USB Codec
(PCM2900)
12MHz
Xstal
Codec
Record
Filter
Phone
In
Codec
Output
Filter
CH 8
In
CH9
In
CH10
In
CH 11
In
CH12
In
CH13
In
Channel Input Preamps
CH 6
fader
makeup
gain
amp
CH 7
fader
makeup
gain
amp
CH 8
fader
makeup
gain
amp
CH 9
fader
makeup
gain
amp
CH 10
fader
makeup
gain
amp
CH 11
fader
makeup
gain
amp
CH 12
fader
makeup
gain
amp
CH 13
fader
makeup
gain
amp
CH 14
fader
makeup
gain
amp
CH 15
fader
makeup
gain
amp
CH 6
On Lgc
(CD4049)
CH 7
On Lgc
(CD4049)
CH 8
On Lgc
(CD4049)
CH 9
On Lgc
(CD4049)
CH 10
On Lgc
(CD4049)
CH 11
On Lgc
(CD4049)
CH 12
On Lgc
(CD4049)
CH 13
On Lgc
(CD4049)
CH 14
On Lgc
(CD4049)
CH 15
On Lgc
(CD4049)
CH 6 FET Sw
P-A-Q
(CD4053)
CH 7 FET Sw
P-A-Q
(CD4053)
CH 8 FET Sw
P-A-Q
(CD4053)
CH 9 FET Sw
P-A-Q
(CD4053)
CH 10 FET Sw
P-A-Q
(CD4053)
CH 11FET Sw
P-A-Q
(CD4053)
CH 12 FET Sw
P-A-Q
(CD4053)
CH13 FET Sw
P-A-Q
(CD4053)
CH 14 FET Sw
P-A-Q
(CD4053)
CH 15 FET Sw
P-A-Q
(CD4053)
CH 6
P-A-Q Lgc
(CD4049)
CH 7
P-A-Q Lgc
(CD4049)
CH 8
P-A-Q Lgc
(CD4049)
CH 9
P-A-Q Lgc
(CD4049)
CH 10
P-A-Q Lgc
(CD4049)
CH 11
P-A-Q Lgc
(CD4049)
CH12
P-A-Q Lgc
(CD4049)
CH 13
P-A-Q Lgc
(CD4049)
CH 14
P-A-Q Lgc
(CD4049)
CH 15
P-A-Q Lgc
(CD4049)
Monitor
SW amp
Phone
SW amp
PGM
mix
amp
AUD
mix
amp
Mix the Phone
channel
with the Main
Output buses
Talk
Air
Pgm
Aud
Note
All unmarked ICs
are NE5532 op amps
CH 8CH9CH 10CH11CH12CH13
Ch 14 In
Unbal/USB
L L R R
USB
REC IN
A P A P
A
/
Q
P
A
/
Q
P
to 5 ch Expan Bd
to VU Meter bd
in VU housing
ARC-15 Parts Layout (10 channel main board)
CN1
CN3
CN4
CN5
CN6
Note#1
CN1-6 correspond
with CN1-6 on the 5
channel PC board
CN2
CN7
CN14
Cue Speaker
Cable Conn
CN15
Headphone
Cable Conn
CN10
ARC10
VU Meter
Cable Conn
1.17

Board Connector Diagram 5/21/2007Rev A
ARC Console Arrakis Systems
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Control Room Mute Logic
Channel 10 Logic
Autocue Logic (Rev D board)
Studio Monitor Left output
Channel 8 Logic
Studio Monitor Right outut
Channel 7 Logic
CR Mic audio for talkback to Studio
Channel 6 Logic
Ground
Channel 5 Logic
+12 VDC
Channel 4 Logic
Audio Input to Cue for Talkback
Channel 3 Logic
Channel 2 Logic (not used in 15 pin D-sub)
Note: connects thru ribbon cable to rear
panel 15 pin D-sub connector
CN 13- Remote Logic Cable
1
2
3
4
5
6
7
8
9
10
Program Left
Program Right
Audition Left
Audition Right
-12VDC
-12VDC
+12VDC
+12VDC
Ground
Ground
Note: connects thru
ribbon cable to top
VU meter panel
CN 7- VU Meter IDC Conn.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Mon L in
Mon L out
Gnd
Mon R in
Mon R out
Gnd
HP L in
HP L out
Gnd
HP R in
HP R out
Gnd
Cue in
Cue out
Gnd
not used
Note: connects to monitor, headphone and
cue pots on front panel of console
CN 11- Volume Control Connector
1
2
3
4
5
6
7
8
9
Data Carrier Detect (DCD/CD) In
Receive Data Line (RD) Data
Transmit Data Line (TD) Data
Data Terminal Ready (DTR) Out
Ground
Data Set Ready (DSR) In
Request to Send (RTS) Out
Clear to Send (CTS) In
Ring Indicator (RI) In
CN12- RS232 IDC Conn.
1
2
3
4
5
6
7
8
9
ARC-15 Motherboard IDC Connector Diagrams
Note 1: connects thru ribbon cable to rear
panel 9 pin D-sub connector for
RS232 connection to a PC
Note 2: Logic 1 = minus 3-15 VDC
Logic 0 = plus 3-15 VDC
Max load = 3-7K ohms
4 inputs to PC = CTS, DSR, DCD(CD), RI
2 outputs from PC = RTS, DTR
1
2
3
4
5
6
7
8
9
10
Not connected
Data Set Ready (DSR) In
Not connected
Request to Send (RTS) Out
Not connected
Clear to Send (CTS) In
Not connected
Not connected In
Ground
Not connected
CN
12 ribbon cable
9 Pin D-sub Connector on Back Panel
1.18

ARC-15 Parts Layout (5 channel expansion board)
Mic 1 amp
(SSM2019)
Mic 2 amp
(SSM2019)
Mic 1
In
Mic 2
In
CH 2
In
CH 3
In
CH 4
In
CH 5
In
CH 6
In
CH 2
In
CH 3
In
CH 4
In
CH 5
In
CH 6
In
CH 7
In
Stereo Line Channel Input Preamps
CH 1
fader
makeup
gain
amp
CH 2
fader
makeup
gain
amp
CH 3
fader
makeup
gain
amp
CH 4
fader
makeup
gain
amp
CH 5
fader
makeup
gain
amp
CH 1
On Lgc
(CD4049)
CH 2
On Lgc
(CD4049)
CH 3
On Lgc
(CD4049)
CH 4
On Lgc
(CD4049)
CH 5
On Lgc
(CD4049)
CH 1 FET Sw
P-A-Q
(CD4053)
CH 2 FET Sw
P-A-Q
(CD4053)
CH 3 FET Sw
P-A-Q
(CD4053)
CH 4 FET Sw
P-A-Q
(CD4053)
CH 1
P-A-Q Lgc
(CD4049)
CH 2
P-A-Q Lgc
(CD4049)
CH 3
P-A-Q Lgc
(CD4049)
CH 4
P-A-Q Lgc
(CD4049)
CH 5
P-A-Q Lgc
(CD4049)
Mic 3
In
CH 7
In
Mic 3 amp
(SSM2019)
none
mic jumper position
line jumper position
none
mic jumper position
line jumper position
CH 6 select CH 5 select CH 3 select CH 2 select
CH 5
Mute
CH 4
Mute
CH 3
Mute
CH 2
Mute
Add jumper
to mute the
channel
Stereo Line Channel Inputs Mono Mic Channel Inputs
CH 5 FET Sw
P-A-Q
(CD4053)
CN1
CN2
CN3
CN5
CN6
CN4
Note
All unmarked ICs
are NE5532 op amps
CN1
1
2
3
4
5
6
7
8
9
10
Mic 1
+12VDC
Mic 2
-12VDC
Ground (audio)
Ground (audio)
+48VDC
+48VDC
Ground (shield)
Ground (shield
CN2
1
2
3
4
5
6
7
8
9
10
Ch 5 Start logic
nc
Ch 4 Start Logic
nc
Ch 3 Start logic
nc
Ch 2 Start logic
nc
Ch 2 Cue Logic for TB to CR
nc
CN3
1
2
3
4
5
6
7
8
9
10
+12VDC
Gorund (audio)
Ground (audio)
Ground (audio)
CH1 L
nc
Ch 2 L
Ch 1R
Autocue
Ch 2R
CN4
1
2
3
4
5
6
7
8
9
10
nc
nc
nc
nc
+5VDC
+5VDC
Ground
Gorund
-5VDC
-5VDC
CN5
1
2
3
4
5
6
7
8
9
10
nc
nc
nc
nc
+5VDC
+5VDC
+14VDC
+12VDC
Gorund
Ground
CN6
1
2
3
4
5
6
7
8
9
10
nc
Mute logic
CR Mic to Hybrid talkback
Ground
CR MicTakback to Studio
Cue
Aud L bus
Aud R bus
Pgm L bus
Pgm R bus
1.19

+
5532
U1B
7
6
5
_
10pF
+
47uF
2.2K
32.4K
4.7K
50K
+
5532
U1A
1
2
3
_
10pF
+
47uF
2.2K
32.4K
4.7K
50K
+
5532
U2A
1
2
3
_
10pF
+
47uF
2.2K
32.4K
4.7K
50K
+
5532
U2B
7
6
5
_
10pF
+
47uF
2.2K
32.4K
4.7K
50K
ARC-15 VU Meter Driver PC Board
Pgm R
Pgm L
Aud L
Aud R
CN1
CN1
CN2
U1
U2
PL PR AL AR
CN1
1
2
3
4
5
6
7
8
9
10
Pgm L
Pgm R
Aud L
Aud R
-12VDC
-12VDC
+12VDC
+12VDC
ground
ground
TO MOTHERBOARD TO VU METERS
CN2
1
2
3
4
5
6
7
8
9
10
NC
ground
NC
ground
Pgm L VU meter
ground
Aud L VU meter
ground
Aud R VU meter
ground
CN2
TO
MOTHER
BOARD
1.20