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Crestron CNX-PBVR4
Professional Balanced Video Receiver
Operations Guide
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This document was prepared and written by the Technical Documentation department at:
Crestron Electronics, Inc.
15 Volvo Drive
Rockleigh, NJ 07647
1-888-CRESTRON
All brand names, product names and trademarks are the property of their respective owners.
©2002 Crestron Electronics, Inc.
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Crestron CNX-PBVR4 Professional Balanced Video Receiver
Contents
Professional Balanced Video Receiver: CNX-PBVR4 1
Introduction ...............................................................................................................................1
Features and Functions................................................................................................1
Specifications ..............................................................................................................2
Physical Description.................................................................................................... 2
Industry Compliance ...................................................................................................5
Setup .......................................................................................................................................... 5
Rack Mounting ............................................................................................................ 5
Hookup ........................................................................................................................ 6
Video Input Compensation.......................................................................................... 7
Problem Solving ........................................................................................................................9
Troubleshooting........................................................................................................... 9
Further Inquiries..........................................................................................................9
Future Updates ............................................................................................................9
Return and Warranty Policies.................................................................................................. 10
Merchandise Returns / Repair Service ......................................................................10
CRESTRON Limited Warranty.................................................................................10
Operations Guide – DOC. 8184 Contents • i
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Crestron CNX-PBVR4 Professional Balanced Video Receiver
•
Professional Balanced Video
Receiver: CNX-PBVR4
Introduction
Features and Functions
The CNX-PBVR4 Professional Balanced Video Receiver is designed to accept up to
16 channels of differential (balanced) video and digital audio from the Crestron
Room Solution Boxes (CNXRMC or CNXRMCLV) and provide single-ended
(unbalanced) video and digital audio to the Crestron Video Distribution Switch
(CNX-PVID8x3 or 8x4) for redistribution to other room boxes or PVIDs.
This non-Cresnet unit is a key component for distributing video and/or digital audio
throughout an entire home, using standard CAT5 cabling.
Functional Summary
16 Channels in 4 Video I/O Groups
• 4 RJ45 Connectors (1 per Group) for CAT5 Balanced
Video/Digital Audio Input
• 12 Video Input Compensation Potentiometers (3 per
Group) to Adjust for CAT5 Cable Length
• 16 RCA Connectors (4 per Group) for Video and
Digital Audio Output:
− Component Video including HDTV
− S-Video
− Composite Video
− Single, Fixed Compensation Line for Composite
Video or S/PDIF Digital Audio
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Professional Balanced Video Receiver Crestron CNX-PBVR4
Specifications
Specifications for the CNX-PBVR4 are given in the following table.
CNX-PBVR4 Specifications
SPECIFICATION DETAILS
Power Requirements 24 VDC, 1A, 24W (Power Pack, PW-2410, included)
Video
Signal Type
Gain
Bandwidth
CAT5 Input Cable Length from
CNXRMCLV
Video Input
Input Video Type
Connector
Impedance
Voltage Level
Video Output
Output Video Type
Connector
Impedance
Voltage Level
Environmental Temperature &
Humidity
Dimensions & Weight Height: 1.7 in (4.32 cm) (1 rack space)
Composite Video
S-Video
Component Video
S/PDIF Digital Audio
Unity
50 MHz
Up to 300 feet maximum.
Balanced
Shielded RJ-45 (8-pin) Female
100 Ohms
0.3V to 2Vp-p with no offset
Unbalanced
RCA Female
75 Ohms
0.3V to 2Vp-p with no offset
41° to 113°F (5° to 45°C)
10% to 90% RH (non-condensing)
Width: 19.0 in (48.26 cm) – with ears
17.03 in (43.24 cm) – without ears
Depth: 6.67 in (16.94 cm)
Weight: 2.88 lb (1.29 kg)
Physical Description
The CNX-PBVR4, shown below, is housed in a black enclosure with labeling on
front and back panels. Refer to the physical views shown after this paragraph.
CNX-PVID8x4 Physical Views
6.671 in
(16.94 cm)
1.70 in
(4.32 cm)
17.025 in
(43.24 cm)
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Crestron CNX-PBVR4 Professional Balanced Video Receiver
Ports, Controls, and Indicators
The CNX-PBVR4 has a single LED power indicator (PWR) on the front panel to
indicate when DC power is applied to the unit; all video signal ports and controls are
located on the rear panel.
NOTE: This unit is a non-Cresnet device.
CNX-PBVR4 Front Panel
As shown in the illustration following this paragraph, the unit’s ports and controls
consist of four identical video I/O groups of input and output connectors and signal
compensation potentiometers. Also located on the rear panel is the male connector
for 24VDC input power from the supplied power pack, PW-2410. The ports and
controls are described in the paragraphs following the illustration.
CNX-PBVR4 Rear Panel
Each of the four video I/O groups consists of an RJ45 (8-pin) connector (labeled A,
B, C, and D), three potentiometers (labeled VIDEO INPUT COMP 1, 2, and 3), and
four gold plated female RCA connectors (labeled VIDEO OUT 1, 2, 3, and 4).
RJ45 Connectors
Each connector receives up to four baseband video input signals via CAT5 cable
from a Room Solution Box, such as the CNXRMCLV, or from a Crestron Video
Distribution Switch, such as the CNX-PVID8x3 or CNX-PVID8x4. Three baseband
signals can be provided by the CNX-PVID8x3 and the CNX-PVID8x4 can provide
four. Component video—including HDTV, S-Video and/or composite video
comprise Level 1 through Level 3 inputs. Level 4 inputs, because they are fed to
fixed compensation circuits, are typically used for composite video or digital audio.
The three to four baseband video signals (1 through 4) correspond to the levels
available on the particular model of CNX-PVID used.
Potentiometers
Three of the video inputs in each group have potentiometers, used to adjust each
signal independently to compensate for line loss due to lengthy CAT5 cable runs.
The fourth input signal has fixed cable compensation. Use a small, flat blade
screwdriver to adjust the pots following the procedures given in "Video Input
Compensation" on page 7.
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Professional Balanced Video Receiver Crestron CNX-PBVR4
RJ-4
RCA Connectors
These four gold-plated RCA connectors provide flexibility to output component,
composite, and S-Video, along with digital audio for a variety of configurations
required by the local equipment in the room.
The four groups combined expand that flexibility, allowing for the simultaneous
distribution of at least one of every video format. The simplified block diagram
following this paragraph illustrates the internal configuration of each I/O group.
VIDEO I/O Block Diagram
5
Connector
Pins
1
2
3
6
4
5
7
8
LEVEL 1
1+
1–
LEVEL 2
2+
2–
LEVEL 3
3+
3–
LEVEL 4
4+
4–
VIDEO
INPUT
COMP
1
2
3
FIXED COMP
1
2
3
4
CAT5 INPUT
(FROM CNX-PVID8x3/4
or CNXRMCLV)
RCA
OUTPUTS
Although there is great flexibility to output a variety of video formats, certain
characteristics dictate the combination of video formats delivered by the CNXPBVR4. Characteristics include the internal wiring of the unit, the fact that three of
the four inputs can be compensated, and the ability to simultaneously distribute at
least one of every video format. The table after this paragraph lists three highly
recommended output configurations for the CNX-PBVR4 video I/O groups.
Recommended Output Configurations for CNX-PBVR4 I/O Groups
VIDEO
OUT
CONFIGURATION
PORT
1 Component (Y) S-Video (Y) Composite
2 Component (Pb) S-Video (C) Composite
3 Component (Pr) Composite
4 Digital Audio Digital Audio Digital Audio
A
CONFIGURATION
B
CONFIGURATION
C
PWR Indicator
The CNX-PBVR4 has a single PWR (power) indicator on its front panel. This LED
illuminates when the unit is connected to and receives 24VDC power from the
supplied power pack.
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Crestron CNX-PBVR4 Professional Balanced Video Receiver
Industry Compliance
As of the date of manufacture, this unit has been tested and found to comply with
specifications for CE marking and standards per EMC and Radio Communications
Compliance Labeling (N11785)
NOTE: This device complies with part 15 of the FCC rules. Operation is subject to
the following two conditions: (1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that may
cause undesired operation.
Setup
Rack Mounting
WARNING: To prevent bodily injury when mounting or servicing this unit in a
rack, take special precautions to ensure that the system remains stable. The following
guidelines are provided to ensure your safety:
When mounting this unit in a partially filled rack, load the rack from the bottom
to the top with the heaviest component at the bottom of the rack.
If the rack is provided with stabilizing devices, install the stabilizers before
mounting or servicing the unit in the rack.
NOTE: If rack mounting is not required, rubber feet are provided for tabletop
mounting or stacking. Apply the feet near the corner edges on the underside of the
unit.
NOTE: Reliable earthing of rack-mounted equipment should be maintained.
Particular attention should be given to supply connections other than direct
connections to the branch circuit. (e.g., use of power strips).
Two “ears” are provided with the unit and must be installed so that it can be rack
mounted. Refer to the following illustration and complete the procedures below to
attach ears to the unit. The only tool required is a Phillips screwdriver.
NOTE: Mounting screws are provided with the ears.
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Professional Balanced Video Receiver Crestron CNX-PBVR4
Ear Attachment for Rack Mounting
1. Using a Phillips screwdriver, remove the three side screws closest to
the front panel.
2. Position a rack ear so that its mounting holes align with the vacated
holes, and secure the ear to the unit with the three longer screws
supplied with the ears.
3. Repeat the procedure to attach the remaining ear to the opposite side.
Hookup
The CNX-PBVR4 provides great flexibility in redistributing video signals
throughout an entire home. Local room sources can now be distributed and shared to
other rooms through the headend. For example, as seen in the simplified
configuration diagram on the next page, users in Room 1 or Room 2 can choose to
view from among the headend sources, their own local sources, or the local sources
of the other three rooms.
NOTE: Terminators are not required on unused video output connectors.
To maintain highest signal integrity, Crestron recommends a maximum length of
300 feet for CAT5 input cables from the CNXRMCLV room solution boxes to the
CNX-PBVR4.
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Crestron CNX-PBVR4 Professional Balanced Video Receiver
Typical Hookup Connections for the CNX-PBVR4
Local Video
Source
Local Video
Source
Local Video
Source
Local Video
Source
CONTROLLERS
Room 1
Unbalanced
Video
CAT5
Room 2
Unbalanced
Video
CAT5
Room 3
Unbalanced
Video
Room 4
Unbalanced
Video
ROOM
In
CNXRMCLV
In
In
CNXRMCLV
In
In
CNXRMCLV
CNXRMCLV
In
Unbalanced
Video
Unbalanced
Video
Unbalanced
Video
Unbalanced
Video
Local
Monitor/TV
Out
Local
Monitor/TV
Local
Monitor/TV
Out
Local
Monitor/TV
Out
Balanced
Video/Digital
Audio
CAT5
A
CAT5
B
CNX-PBVR4
CAT5
C
CAT5
D
Out
HEADEND
Unbalanced
Video/Digital Audio
RCA (X4)
RCA (X4)
RCA (X4)
RCA (X4)
DVD
Headend
Sources
In
CNX-
PVID8x4
In
In
(Max. I/O = 16 x 8)
Out
Balanced
Video/Digital
Audio
Out
Video Input Compensation
After the system is completely hooked up, it may be necessary to adjust the video
input compensation pots on the CNX-PBVR4 to achieve the best picture on one or
more of the monitors. All that is required to complete this procedure is a narrow
slotted screwdriver and a third party audio/video calibration DVD (or laser disc).
Crestron recommends one of the following:
• Avia Guide to Home Theater from Ovation Software
(www.ovationsw.com)
• Video Essentials from DVD International
(www.videoessentials.com).
Complete this procedure.
1. Place the third party audio/video calibration DVD (or similar) in the
system's DVD player.
2. Search through the DVD for the chapter that displays the multi-burst
pattern, as shown on the next page.
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Professional Balanced Video Receiver Crestron CNX-PBVR4
Sample of Multi-Burst Pattern
NOTE: For S-video and component video sources, be sure to adjust the pot for
luminance compensation first (VIDEO INPUT COMP 1). The pots for chrominance
compensation should be adjusted last.
3. While the pattern is being displayed on the monitor, use the
screwdriver to adjust the VIDEO INPUT COMP 1 compensation pot
until the line intensity on the monitor appears uniform.
4. Each compensation pot is labeled with a numeric range (1 through 10).
Note the numeric value of the VIDEO INPUT COMP 1 compensation
pot adjusted in step 3.
5. Use the screwdriver to adjust the other two compensation pots (VIDEO
INPUT COMP 2 & 3) so that they match the numeric value of the
VIDEO INPUT COMP 1 compensation pot.
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Crestron CNX-PBVR4 Professional Balanced Video Receiver
Problem Solving
Troubleshooting
In the event of poor quality or missing signal output at one or more distribution
points supplied by circuits that include the CNX-PBVR4, and troubleshooting
procedures for the other devices in the network do not resolve the problem, do the
following:
1. Verify existence of input signals(s) from the CNXRMCLV.
2. Verify that the correct (24 VDC, 1A) external Power Pack is properly
connected, and that the front panel PWR indicator is illuminated.
3. Verify pinouts on CAT5 cable connectors. Make sure crimping is secure
and that there are no shorts.
4. Verify that all CAT5 input cables and RCA output cables are securely
connected.
5. After determining which of the four signal groups may be at fault, either
perform the Video Input Compensation procedures (discussed on page 7),
or swap the input and output cables between the groups to locate the
source of the trouble. If further assistance is required, please contact a
Crestron customer service representative.
Further Inquiries
If after reviewing this Operations Guide for the CNX-PBVR4, you cannot locate
specific information or have questions, please take advantage of Crestron's award
winning customer service team in your area. Dial one of the following numbers.
• In the US and Canada, call Crestron's corporate headquarters at
1-888-CRESTRON [1-888-273-7876].
• In Europe, call Crestron International at +32-15-50-99-50.
• In Asia, call Crestron Asia at +852-2341-2016.
• In Latin America, call Crestron Latin America at +5255-5093-2160.
• In Australia and New Zealand, call Crestron Control Solutions at
+61-2-9737-8203.
Future Updates
As Crestron improves functions, adds new features, and extends the capabilities of
the CNX-PBVR4, additional information and programming examples may be made
available as manual updates. These updates are solely electronic and serve as
intermediary supplements prior to the release of a complete technical documentation
revision.
Check the Crestron website (www.crestron.com
availability and its relevance. Updates are available from the Downloads | Product
Manuals section and are identified as an “Addendum” in the Download column.
) periodically for manual update
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Professional Balanced Video Receiver Crestron CNX-PBVR4
Return and Warranty Policies
Merchandise Returns / Repair Service
1. No merchandise may be returned for credit, exchange, or service without prior
authorization from CRESTRON. To obtain warranty service for CRESTRON
products, contact the factory and request an RMA (Return Merchandise
Authorization) number. Enclose a note specifying the nature of the problem, name
and phone number of contact person, RMA number, and return address.
2. Products may be returned for credit, exchange, or service with a CRESTRON Return
Merchandise Authorization (RMA) number. Authorized returns must be shipped
freight prepaid to CRESTRON, 6 Volvo Drive, Rockleigh, N.J., or its authorized
subsidiaries, with RMA number clearly marked on the outside of all cartons.
Shipments arriving freight collect or without an RMA number shall be subject to
refusal. CRESTRON reserves the right in its sole and absolute discretion to charge a
15% restocking fee, plus shipping costs, on any products returned with an RMA.
3. Return freight charges following repair of items under warranty shall be paid by
CRESTRON, shipping by standard ground carrier. In the event repairs are found to
be non-warranty, return freight costs shall be paid by the purchaser.
CRESTRON Limited Warranty
CRESTRON ELECTRONICS, Inc. warrants its products to be free from manufacturing defects in
materials and workmanship under normal use for a period of three (3) years from the date of
purchase from CRESTRON, with the following exceptions: disk drives and any other moving or
rotating mechanical parts, pan/tilt heads and power supplies are covered for a period of one (1)
year; touchscreen display and overlay components are covered for 90 days; batteries and
incandescent lamps are not covered.
This warranty extends to products purchased directly from CRESTRON or an authorized
CRESTRON dealer. Purchasers should inquire of the dealer regarding the nature and extent of the
dealer's warranty, if any.
CRESTRON shall not be liable to honor the terms of this warranty if the product has been used in
any application other than that for which it was intended, or if it has been subjected to misuse,
accidental damage, modification, or improper installation procedures. Furthermore, this warranty
does not cover any product that has had the serial number altered, defaced, or removed.
This warranty shall be the sole and exclusive remedy to the original purchaser. In no event shall
CRESTRON be liable for incidental or consequential damages of any kind (property or economic
damages inclusive) arising from the sale or use of this equipment. CRESTRON is not liable for
any claim made by a third party or made by the purchaser for a third party.
CRESTRON shall, at its option, repair or replace any product found defective, without charge for
parts or labor. Repaired or replaced equipment and parts supplied under this warranty shall be
covered only by the unexpired portion of the warranty.
Except as expressly set forth in this warranty, CRESTRON makes no other warranties, expressed
or implied, nor authorizes any other party to offer any warranty, including any implied warranties
of merchantability or fitness for a particular purpose. Any implied warranties that may be imposed
by law are limited to the terms of this limited warranty. This warranty statement supercedes all
previous warranties.
Trademark Information
All brand names, product names, and trademarks are the sole property of their respective owners. Windows is a registered
trademark of Microsoft Corporation. Windows95/98/Me and WindowsNT/2000 are trademarks of Microsoft Corporation.
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Crestron CNX-PBVR4 Professional Balanced Video Receiver
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Crestron Electronics, Inc. Operations Guide – DOC. 8184
15 Volvo Drive Rockleigh, NJ 07647 08.02
Tel: 888.CRESTRON
Fax: 201.767.7576 Specifications subject to
www.crestron.com change without notice.
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