Channel Vision Home Theater System E 1200 User Manual

E SERIES 1200  
Installation Instructions  
234 FISCHER AVENUE z COSTA MESA, CA 92626  
(714) 424-6500  
z
(800) 840-0288  
z
(714) 424-6510 FAX  
z
© 2001, CHANNEL VISION™  
 
E Series 1200 Basic Setup  
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.  
Cable or  
Antenna  
AV In  
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.  
3102 Filter  
Modulator  
Channel Vision  
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.)  
MULTI ROOM VIDEO TECHNOLOGY  
CVT - 15PIA  
RF Out  
HS-2  
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.  
HS-8  
Satellite Receiver  
Adjustments  
To TV's  
Video Level Adjustment: Adjust the incoming video source base band level.  
Use only to increase brightness and balance the channels for consistent  
contrast.  
FCC Regulations – the Cable TV Act  
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.  
“Cable home wiring” is the cable wiring located inside a Cable TV sub-  
scriber’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.  
Channel  
Push  
Channel  
Push  
Channel  
Push  
Channel  
Push  
Cable/UHF  
Cable/UHF  
Cable/UHF  
Cable/UHF  
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.  
Factory Preset  
Up 1  
65/14  
66/15  
67/16  
68/17  
69/18  
70/19  
71/20  
72/21  
73/22  
74/23  
75/24  
76/25  
77/26  
78/27  
79/28  
80/29  
81/30  
82/31  
83/32  
84/33  
85/34  
86/35  
87/36  
88/37  
89/38  
90/39  
91/40  
92/41  
93/42  
94/43  
Up 15  
Up 16  
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  
95-99/42  
100/43  
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  
Not Used  
Down 36  
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  
118/61  
119/62  
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 18  
Down 17  
Down 16  
Down 15  
Down 14  
Down 13  
Down 12  
Down 11  
Down 10  
Down 9  
Up 2  
Up 3  
Up 4  
Up 5  
Up 6  
Up 7  
If the wiring was previously transferred or sold to the subscriber, the sub-  
scriber owns it; and the cable company cannot remove it or restrict its use,  
regardless of the reason for service termination.  
Up 8  
Up 9  
Up 10  
Up 11  
Up 12  
Up 13  
Up 14  
Down 8  
Down 7  
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 re-  
move the wiring at no charge to the subscriber, and must pay the cost of  
any damage caused by removing the wiring.  
Down 6  
Down 5  
Down 4  
114/57  
115/58  
116/59  
117/60  
Down 22  
Down 21  
Down 20  
Down 19  
133/76  
134/77  
135/78  
Down 3  
Down 2  
Down 1  
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 ap-  
proximately 12 inches outside the point where the cable enters the outside  
wall of the subscriber’s home.  
Channel up and down buttons are in increments of one. The E-1200 is  
factory set for CATV 65.  
For multiple unit dwellings, the cable operator may sever the wire approxi-  
mately 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 sub-  
scriber’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.  
System Installation Checklist  
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.  
1. Try for 10dB of signal strength at each television. Use a little more for big  
screen TV's. Remember, Uncle Sam doesn't like more than 15.5dB of signal  
going into any TV.  
 
2. When laying out your system, there will be approximately 5dB of  
signal loss per 100' of RG6.  
3. Be sure ALL of your splitters and amplifiers are broadband.  
Splitters should be 5MHz to 1GHz, and amps should be 40MHz  
to 1GHz.  
4. Check and make sure that all televisions are set up for the proper  
frequency spectrum (i.e. UHF or cable).  
5. Make sure that the channels you want to modulate on have “clean  
snow“. No lines or interference.  
6. Use a low pass filter on every installation to clean up the  
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.  
7. Allow 1 to 2 channel spacing between modulated channels and  
"active" channels.  
8. Always compensate for insertion loss with splitters and taps.  
There will always be a drop in antenna/cable signal strength  
when combining a modulator to an existing system (because of  
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.  
insertion  
the  
9. When  
loss with  
combiner).  
combining  
signal with  
modulated  
make sure  
equal signal  
the point of  
combiner  
signal does  
the other  
1. Verify the modulator is set up for the proper TV channel band.  
Cable TV or antenna? If the unit uses dip switches to set the  
channel band, was the unit powered down during or after the  
switches were reset to the proper band? If the unit uses a  
jumper check for proper placement.  
2. Verify the TV is set up on the proper TV channel band. Use  
"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.  
Loss Key_______  
Coax  
RG6 per 100'  
RG59 per 100'  
an existing  
a
signal,  
to have  
strength at  
the  
so one  
not degrade  
and cause  
4dB  
5dB  
Splitter  
HS-2  
3.5dB  
5.5dB  
7dB  
HS-3  
HS-4  
HS-6  
HS-8  
9.5dB  
11dB  
-1dB  
beat  
Taps - Pass Thru  
Suggested dB level @ TV  
8~15dB  
Maximum of 15.5dBmV per  
FCC Regulation  
3. Check TV manual to make sure TV works on channel above 65.  
4. Check all connections for a good connection.  
5. Check splitters and amplifiers for 1GHz rating.  
6. Try another TV, bypass all components and go directly into TV.  
Black Picture : No Modulation  
frequencies.  
In this case, the TV and the modulator are "talking" to each other.  
The video signal is not being passed through the system.  
1. Verify good connections to the modulator from the video source  
i.e. VCR.  
2. Check video source (VCR, Sat Receiver etc.) by running the  
outputs directly into the video inputs on the TV. Verify video  
source is working.  
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.  
3. Check for power at video source.  
4. Disconnect modulator from system:  
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.  
15. If the system needs to be amplified use the amplifier as far "up-  
stream" as possible.  
Grainy Local Channels : Good Modulated Picture  
1. Disconnect the modulator from the system and connect the local  
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.  
3
Check all connectors for 75W.  
2. Install model CVT-15PIA amplifier after the combiner.  
Noise on the Audio  
1. Insert grounding block in line and ground coax cable  
before it enters the TV.  
2. Use professional grade audio/video interconnect between  
the components and the modulator.  
Grainy Modulated Channel : Good Picture on the Cable  
Channels  
1. Disconnect cable channels from the system and check the  
modulated channels.  
O
u
c
h!!!  
A) If the modulated channels are good, use a low pass filter to  
"clean-up" the incoming frequencies to be modulated.  
B) If the modulated channel does not improve after  
disconnecting the local channels, evaluate signal loss of  
modulator through the splitters and cable length of the  
system. Amplify after the combiner if needed.  
C) Also check the connections between modulator and the  
combiner for leakage or the cable braid is touching the  
center conductor.  
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  
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.  
2. Make sure the attenuator adjustment on the back of the  
modulator is turned to maximum output power.  
3. Check output strength with field strength meter.  
4. Connect modulator directly to TV and check picture quality.  
5. Check bandwidth of all splitters and amplifiers for 1GHz  
capability.  
6. Place TV cable setting on standard, NOT HRC or IRC.  
Horizontal Bars Rolling Through TV Picture  
1. Check for a component of the system to introduce DC  
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.  
TV Won't Tune High Enough to get Modulated Channel  
1. Use an external tuner i.e. VCR or a Cable Box converter tuner  
to allow the TV to view a modulated channel on a channel  
through the external tuner.  
2. If the modulated channel is beyond the capabilities for that TV,  
the TV will not work with the system.  
2. If the rolling is only on the modulated channels, check for  
impedance mismatch by adjusting the video level  
adjustment pot.  
Cable Company Box Won't Pass a Modulated Signal  
1. Connect modulator directly to TV and verify the  
modulator is sending a signal the TV can receive.  
2. Use model 3101 Cable Box Combiner Kit to route  
the modulated signal around the cable box. See  
schematic page.  
Vertical Bars Rolling Through TV Picture  
Check for AC power getting on the line. Use a ground  
breaker in line.  
Cable Company Uses All Available Channels  
1. Use a low pass filter (3102) to block out channels 80 and above  
for clean modulation (won't effect channels 95-99).  
2. Call for pricing on a custom filter to block out a specific channel  
or multiple channels.  
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  
1. If flashing is on modulated channels, turn up attenuator/  
down gain of modulator.  
Modulated Picture is Too Bright or Washed Out  
1. Adjust the white video level. Adjust port on the  
chassis located under the white cover plate above the channel  
select to the proper brightness.  
2. If using a camera, check positioning of the lens to be sure it's not  
aimed at the sun or a reflection.  
3. Adjust camera lens - see lens manual.  
2. If flashing is on local channels, attenuate output of  
amplifier.  
3. Remove cable TV from system. If flash stops, install  
filter #3102-__ to fix problem.  
Modulated Picture is Too Dark  
Picture is Tearing  
1. If baseband video is being split with a Stereo  
Loop Kit or loop through quad, set impedance  
matching switch or potentiometer  
(termination switch) to 1K W.  
2. Adjust the white video level adjust pot on the  
chassis located under the white cover plate  
above the channel select to the proper  
brightness.  
Possible impedance problem. Check that impedance  
switch is set to 75W.  
Ghosts on the Picture  
1. Terminate all unused ports with 75W terminator model  
2101.  
2. Check for low quality combiner in system. Replace with  
high isolation combiner, HS model combiner.  
 
ChannelVision  
LimitedWarranty  
Channel Vision Technology will repair or replace any defect in material or workmanship which occur 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  
PLL Synthesized Oscillator  
NTSC  
Video Performance  
Differential Gain  
Differential Phase  
Signal/Noise Ratio  
Less than 2% (0.2dB)  
Less than 3 degree  
Greater than 52dB  
Audio  
L&R Monaural/Stereo loop opt.  
RF Carriers  
Frequency Stability  
Frequency Ranges  
+1KHz  
Spurious Output Rejection  
Outside Carrier  
Inside Carrier  
Isolation  
+12MHz Greater than 70dBC  
UHF 471.25-855.25MHz  
Ultraband 469.25-859.25MHz  
UHF 14-78, Ultraband 65-135  
(Exc. 95-99)  
+12MHz Greater than 55dBC  
Greater than 70dB  
Channels  
Inputs  
Video  
0.4V-2.7V Peak to Peak  
1V RMS  
Channel Width  
Audio Offset  
Sidebands  
6.0MHz  
Audio  
4.5MHz  
Double  
Connectors  
Video In  
RCA Female  
RCA Female  
F type female  
RF Output  
Audio In  
Maximum  
30dBmV  
RF Output  
Gain Range  
Fixed  
Video Output  
Audio Output  
Channel Selector  
1VPeak to Peak  
1V RMS  
Operating Temperatures  
0oC to 50oC  
Transformer Input  
Input Voltage  
Power  
Up/Down selector buttons/I  
Increments of one  
115 VAC, 50/60Hz  
8 Watts  
Output Voltage  
12.0 VAC C/T @ 400mA  
 

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