Channel Vision E1200 Installation instructions

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Channel Vision E1200 Installation instructions | Manualzz

E SERIES 1200

Installation Instructions

© 2001, C HANNEL V ISION ™

234 F ISCHER A VENUE z

C OSTA M ESA , CA 92626

(714) 424-6500 z

(800) 840-0288 z

(714) 424-6510 FAX http://www.channelvision.com z

E-Mail: [email protected]

Channel Vision

E1200

!

C A U T I O N

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,

DO NOT REMOVE COVER.

PROPER VENTILATION REQUIRED.

NO USER-SERVICEABLE PARTS INSI DE.

REFER SERVICING TO QUALIFIED SERVICE PERSONAL.

Products to be installed by certified dealers only.

Certification Requirements: Must be professional installing dealer, pass certification test and familiar with TV and antenna systems. Call 800/840-

0288 for Channel Vision Training Manual and certificat ion test.

Tested To Comply

With FCC Stan-

FOR HOME OR OFFICE USE

Note: This equipment has 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 interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.

However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try and correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna.

Increase the separation between the equipment and receiver.

Connect the equipment into an outlet a circuit different from that to which the receiver is connected

Consult the dealer or an experienced radio/TV technician for help.

Thank you for choosing Channel Vision!

Our E-1200 is the finest miniature digital RF modulator available today and accepts one audio/video input for modulation onto the channel of your choice. Channel Vision’s digital circuitry provides for simple installation and years of trouble-free performance. The E-1200 offers the widest channel range in the class (UHF 14-78 and Cable 65-135) and includes the highest power output (30dBmV) providing a strong signal for long cable runs. A built -in audio impedance adjustment is also included for true stereo audio loop through.

Simply follow the installation instructions below and you will enjoy the convenience of Channel Vision for years to come!

Installation Instructions

Step 1: Find an unused channel between 65-135 for cable or 14-78 for UHF.

Step 2: Be sure that there is no interference on your selected channel. We recommend the use of a block filter (model

#3102) to provide “clean” channels for modulating to.

Step 3:Set the jumper on the back side of the unit for the desired band: UHF Antenna or CATV.

Step 4: Select TV band by inserting jumper into "CATV jumper" (ch

68-135) or "Antenna jumper" (ch 14-78) location on the back of the unit. Default setting is cable band.

Step 5: Change the modulator channel; push and hold the select button for three seconds until power LED on front flashes then press CH- or CH+ to select the channel. NOTE: Up and down buttons are in increments of one.

Step 6: Combine the RF output to the cable or UHF feed using a

Channel Vision broadband combiner. (see diagram)

Step 7:Mount modulator to a wall or cabinet

System Design Considerations

Sophisticated home "networks" involving many TV sets are feasible with the CVT modulator, but care must be taken to design an optimum TV signal distribution system.

TV sets are designed for signals around 10dBmV. Signals below

0dB result in weak, fuzzy, snowy pictures.

Signals above 10dBmV may overdrive older TV sets which don't have modern automatic gain controls. An inline attenuator (pad) can be used to reduce these signals, and to balance radically different signal strengths at all your TV's.

Signal strength decreases with coax cable length and through connectors, splitters, and combiners. It's important to determine how much cable and what in-line devices you'll be using and adjust your input signal levels with amplifiers at the front end or in-line on your network to compensate for the line losses. (The charts on the back of these instructions will help you calculate likely losses through coax cable runs and splitters).

In-line amps are powered through the coax cable and can be used to achieve modest signal strength gains; more powerful a/c powered amps offer more amplification (and usually adjustable gain and tilt too). Your system should provide 10dBmV to every TV (maximum is

15.5dBmV, per the FCC).

Reverse isolation is used to prevent the modulator signal from leaking out to the antenna or cable input. Reverse isolation is accomplished by placing an amplifier between your antenna or cable

E Series 1200 Basic Setup

3102 Filter

Channel Vision

MULTI ROOM VIDEO TECHNOLOGY

CVT - 15PIA

Cable or

Antenna

HS-2

HS-8

To TV's

AV In

Modulator

RF Out

Satellite Receiver

FCC Regulations – the Cable TV Act

“Cable home wiring” is the cable wiring located inside a Cable TV subscriber’s home or apartment that has been installed by a cable operator or its contractor. It does not include such items as amplifiers, converters, decoder boxes or remote control units.

After a subscriber voluntarily terminates cable service, the cable operator may take one of two action:

1. Leave the home wiring in place.

2. Notify the consumer that it will remove the wiring unless the

consumer purchases it from the cable operator on a per-foot re

placement cost basis.

If the wiring was previously transferred or sold to the subscriber, the subscriber owns it; and the cable company cannot remove it or restrict its use, regardless of the reason for service termination.

If the subscriber does not already own the wiring and declines to purchase it from the cable operator, the cable operator may remove the home wiring within 30 days of the subscriber’s refusal. The cable company must remove the wiring at no charge to the subscriber, and must pay the cost of any damage caused by removing the wiring.

To leave the wiring inside and remove the wiring outside a subscriber’s home, a cable operator may, for single unit dwellings, sever the cable approximately 12 inches outside the point where the cable enters the outside wall of the subscriber’s home.

For multiple unit dwellings, the cable operator may sever the wire approximately 12 inches outside the point where the cable enters the subscriber’s individual dwelling unit, except in cases of “loop-through” or other similar series wire configurations that are not covered by the home wiring rules.

If the cable company fails to remove the wiring within 30 days of the subscriber’s refusal to purchase it, the cable operator forfeits its right to the wiring and may not remove it or restrict its use at any later time.

A cable operator will not be held responsible for any signal leakage that occurs from the home wiring once the cable operator ceases providing service over that wiring. company input and the CVT combiner. This prevents the CVT signal from propagating back up the input line.

Another way to prevent leakage from your system is to cap all unused coax cable ports on you network with appropriate terminators.

Bandpass filters stop unwanted frequencies while passing all others along.

They're handy if a channel you want to use for a CVT source is already in use.

Taps are used to redirect a portion of a signal from the "main" trunk line while passing the remaining signal strength through. For example, a 12dBmV tap would pass 29dBmV from a 30dBmV trunk line signal and pass the remaining

18dBmV to a branch line. (Minor signal loss of 1dB would occur in the trunk line leaving 29dBmV.)

Demodulators are used to demodulate the output of a cable box converter, making it possible to assign the cable signal to any channel (cable boxes usually limit your choices to channel three or channel four). Use a demodulator to "condition" the cable signal before assigning it to a CVT input line.

Adjustments

Video Level Adjustment: Adjust the incoming video source base band level.

Use only to increase brightness and balance the channels for consistent contrast.

Channel Up/Down: Changes the modulated channel. Press and hold Select for 2 seconds or until front light blinks to allow channel up/down to work.

Channel

Cable/UHF

73/22

74/23

75/24

76/25

77/26

78/27

79/28

65/14

66/15

67/16

68/17

69/18

70/19

71/20

72/21

Push

Factory Preset

Up 8

Up 9

Up 10

Up 11

Up 12

Up 13

Up 14

Up 1

Up 2

Up 3

Up 4

Up 5

Up 6

Up 7

Channel

Cable/UHF

88/37

89/38

90/39

91/40

92/41

93/42

94/43

80/29

81/30

82/31

83/32

84/33

85/34

86/35

87/36

Push Channel Push Channel Push

Up 15

Cable/UHF

95-99/42 Not Used

Cable/UHF

118/61 Down 18

Up 16 100/43 Down 36 119/62 Down 17

Up 17

Up 18

Up 19

Up 20

Up 21

Up 22

Up 23

Up 24

Up 25

Up 26

Up 27

Up 28

Up 29

101/44

102/45

103/46

104/47

105/48

106/49

107/50

108/51

109/52

110/53

111/54

112/55

113/56

Down 35

Down 34

Down 33

Down 32

Down 31

Down 30

Down 29

Down 28

Down 27

Down 26

Down 25

Down 24

Down 23

120/63

121/64

122/65

123/66

124/67

125/68

126/69

127/70

128/71

129/72

130/73

131/74

132/75

Down 16

Down 15

Down 14

Down 13

Down 12

Down 11

Down 10

Down 9

Down 8

Down 7

Down 6

Down 5

Down 4

114/57 Down 22 133/76 Down 3

115/58

116/59

117/60

Down 21

Down 20

Down 19

134/77

135/78

Down 2

Down 1

Channel up and down buttons are in increments of one. The E-1200 is factory set for CATV 65.

System Installation Checklist

screen TV's. Remember, Uncle Sam doesn't like more than 15.5dB of signal going into any TV.

signal loss per 100' of RG6.

Splitters should be 5MHz to 1GHz, and amps should be 40MHz to 1GHz. frequency spectrum (i.e. UHF or cable). snow“. No lines or interference. frequencies the modulator will be assigned to and keep any potential interference out of the system. Model 3102, cleans up channel 64, 84, 105 and above.

"active" channels.

There will always be a drop in antenna/cable signal strength when combining a modulator to an existing system (because of insertion the an existing a signal, to have strength at the so one not degrade and cause

Loss Key_______

Coax

RG6 per 100' 4dB

RG59 per 100' 5dB

Splitter

HS-2

HS-3

HS-4

HS-6

3.5dB

5.5dB

7dB

9.5dB

HS-8 11dB

Taps - Pass Thru -1dB

Suggested dB level @ TV

8~15dB

Maximum of 15.5dBmV per

FCC Regulation loss with combiner). combining signal with modulated make sure equal signal the point of combiner signal does the other beat

Trouble Shooting

Trouble shooting any system can make or break the entire installation. Here are the most common problems and solutions. After trying these solutions, call 800/840-0288 for 24 hour technical assistance. Calls before 8am and after 5pm pacific standard time will be returned by the technician on call.

Snowy Picture : No Modulation

This is a problem of the TV and the modulator not "talking" to each other.

(Cable TV or antenna). Set the channel badn by inserting the jumper on the back of the unit to the desired location ("CATV sjumper" or "Antenna jumper"). The unit must be powered down to change to a different setting.

"Air" for UHF channels or Cable for Ultraband channels . The

TV will have an on screen set-up menu or a switch for this function. Also make sure the modulated channel isn't blocked out by auto-programming. To check for the TV being set to the wrong band, go to the equivalent channel on the other band (i.e. to check 65 cable try 14 UHF). Add 51 channels for antenna connection to cable channels.

Black Picture : No Modulation

In this case, the TV and the modulator are "talking" to each other.

The video signal is not being passed through the system. i.e. VCR. outputs directly into the video inputs on the TV. Verify video source is working. frequencies.

10. When possible, use the lowest frequencies available for the modulated channels. Lower channels (frequencies) have lower signal loss on the cable runs.

11. When in doubt, run the signal a little high to the television and use an attenuator to lower the signal strength going into the TV.

Attenuators may be combined (i.e. two -3dB attenuators. will equal -6dB).

12. Make sure to use a well shielded coax of either RG-6 Quad or

RG-11 for long trunk runs.

13. Use RG59U Coax for composite/baseband video signals only.

14. Combine the modulator into the video distribution system as far

"up-stream" as possible.

15. If the system needs to be amplified use the amplifier as far "upstream" as possible.

A) Picture goes to snow, problem is between video source and inputs on the modulator.

B) Picture stays black, hook up the modulator. directly to a TV eliminating all the components of the system and check the picture.

Grainy Local Channels : Good Modulated Picture

channel feed directly to the distribution system and check TV

picture quality.

A) If the picture quality is good the insertion loss of the combiner for the modulator is degrading the local channel signal. Use a CVT-15PIA to compensate for the insertion loss.

B) The other alternative is to use a 6dB tap as the combiner, put the local channel feed on the pass through port for a minimal loss of signal connect the modulator to the tap off port.

C) If the picture is still bad, check for a bad connection where

leakage may occur or if the shielding braid is touching the center conductor.

Grainy Modulated Channel : Good Picture on the Cable

Channels modulated channels.

A) If the modulated channels are good, use a low pass filter to

"clean-up" the incoming frequencies to be modulated. disconnecting the local channels, evaluate signal loss of modulator through the splitters and cable length of the system. Amplify after the combiner if needed. combiner for leakage or the cable braid is touching the center conductor. modulator is turned to maximum output power. capability.

TV Won't Tune High Enough to get Modulated Channel to allow the TV to view a modulated channel on a channel through the external tuner. the TV will not work with the system.

Cable Company Box Won't Pass a Modulated Signal modulator is sending a signal the TV can receive. the modulated signal around the cable box. See schematic page.

Cable Company Uses All Available Channels for clean modulation (won't effect channels 95-99). or multiple channels.

Modulated Picture is Too Bright or Washed Out chassis located under the white cover plate above the channel select to the proper brightness. aimed at the sun or a reflection.

Modulated Picture is Too Dark

Loop Kit or loop through quad, set impedance matching switch or potentiometer

(termination switch) to 1

ΚΩ.

chassis located under the white cover plate above the channel select to the proper brightness.

3

.

Noise on the Audio before it enters the TV. the components and the modulator.

Audio is Too Low

Use a Y-Connector to combine the left and right audio before entering the modulator.

Herringbone in Picture on Modulated Channel

O u c h!!!

Disconnect modulator from local channels an check modulated channel.

A) If there is programming move the modulated channel.

B) If the picture is snowy, use a #3102-80 low pass filter to

block noise or data coming in from cable company.

C) Separate modulated channels by two channels.

Horizontal Bars Rolling Through TV Picture power into the system. Disconnect that component and check TV. If the hum bars stop, use a DC blocker down stream from that component to block the power from getting to the TVs. impedance mismatch by adjusting the video level adjustment pot.

Vertical Bars Rolling Through TV Picture

Check for AC power getting on the line. Use a ground breaker in line.

Black and White Lines on one Local Channel

Move modulated channel up to a new channel. If problem persists and all of the inputs of a multiple input modulator are not being used, check default channels on modulator to see if default channel is set to the same channel that the problem channel is set to.

Flashing at the Top or Middle of TV Picture down gain of modulator. amplifier. filter #3102-__ to fix problem.

Picture is Tearing

Possible impedance problem. Check that impedance switch is set to 75

Ω.

Ghosts on the Picture

1.

terminator model

2101. high isolation combiner, HS model combiner.

Channel Vision

Limited Warranty

Channel Vision Technology will repair or replace any defect in material or workmanship which o ccur during normal use of this product with new or rebuilt parts, free of charge in the USA, for two years from the date of original purchase. This is a no hassle warranty with no mail in warranty card needed. This warranty does not cover damages in shipment, failures caused by other products not supplied by Channel Vision Technology, or failures due to accident, misuse, abuse, or alteration of the equipment. This warranty extends only to the original purchaser. A purchase receipt, invoice, or other proof of original purchase date will be required before warranty repairs are provided.

Mail in service can be obtained during the warranty period by calling toll free (800) 840-0288 toll free. A Return

Authorization number must be obtained in advance and be marked on the outside of the shipping carton.

This warranty gives you specific legal rights, and you may have other rights (which vary from state to state). If a problem with this product develops during or after the warranty period, please contact Channel Vision, your dealer, or any factory-authorized service center.

Specifications:

RF Modulator

Video

Audio

RF Carriers

Frequency Stability

Frequency Ranges

Channels

Channel Width

Audio Offset

Sidebands

RF Output

Maximum

Gain Range

Video Output

Audio Output

Channel Selector

PLL Synthesized Oscillator

NTSC

L&R Monaural/Stereo loop opt.

+1KHz

UHF 471.25-855.25MHz

Ultraband 469.25-859.25MHz

UHF 14-78, Ultraband 65-135

(Exc. 95-99)

6.0MHz

4.5MHz

Double

30dBmV

Fixed

1VPeak to Peak

1V RMS

Up/Down selector buttons/I

Increments of one

Video Performance

Differential Gain

Differential Phase

Signal/Noise Ratio

Less than 2% (0.2dB)

Less than 3 degree

Greater than 52dB

Spurious Output Rejection

Outside Carrier +12MHz Greater than 70dBC

Inside Carrier

Isolation

+12MHz Greater than 55dBC

Greater than 70dB

Inputs

Video

Audio

0.4V-2.7V Peak to Peak

1V RMS

Connectors

Video In

Audio In

RF Output

RCA Female

RCA Female

F type female

Operating Temperatures

0

o

C to 50

o

C

Transformer Input

Input Voltage

Power

Output Voltage

115 VAC, 50/60Hz

8 Watts

12 VDC @ 250mA

500-166 rev B

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Questions and Answers

What is the frequency range of the Channel Vision E1200 modulator?
The E1200 offers a wide channel range, covering UHF channels 14-78 and Cable channels 65-135.
How do I change the modulated channel?
To change the channel, press and hold the 'Select' button for three seconds until the power LED flashes, then press the 'CH-' or 'CH+' buttons to select the desired channel.
What is the maximum signal strength output of the E1200 modulator?
The E1200 provides a strong signal output of 30dBmV, ensuring a reliable signal even for long cable runs.
How do I connect the modulator to my TV and cable or antenna?
Combine the RF output of the modulator to the cable or UHF feed using a Channel Vision broadband combiner.
What is the default setting for the E1200 modulator?
The default setting for the E1200 modulator is the Cable band (channels 68-135).
How can I prevent signal leakage from my system?
To prevent signal leakage, cap all unused coax cable ports on your network with appropriate terminators.

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