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Warranty
600-125 rev A
Multiplex Technology, Inc., Brea, CA 92821
Multiplex Technology, Inc. warrants this product to be free
from defects in materials and workmanship for a period of
one year from the date of purchase or MTI will repair, or at its
option, replace the defective product. To obtain warranty
service, call MTI for a return material authorization (RMA)
number and return the product prepaid to Multiplex
Technology, Inc., 3001 Enterprise Street, Brea, CA 92821,
Attention: Customer Service. Please put the RMA number
on the outsideof the carton.
Any implied warranty arising from the sale of the product
including implied warranties of merchantability and fitness
for purpose are limited to the warranty stated above. MTI
shall not be responsible for losses or damages or expenses,
whether direct, consequential or incidental arising from the
use of or the inability to use this product. Some states do not
allow limitations on how long the implied warranty lasts or
the exclusion or limitation or incidental or consequential
damages, so the above limitations and exclusions may not
apply to you. This warranty gives you specific legal rights,
and you may have other rights which may vary from state to
state.
Channel
PERFORMANCE MULTI-ROOM VIDEO
Modulator
Installation Manual
®
select
C
D
BA
program
Frequency-Agile
MTS Stereo
Multi-channel Modulators
model 5645 quad mts stereo surround sound modulator
STEREO
dbx noise reduction
Models
R
600-125 rev A
Multiplex Technology, Inc., Brea, CA 92821
5615/5625/5645
This device complies with the FCC's Part 15 Rules for TV
interface devices. Any change or modification to this device
without the permission of Multiplex Technology, Inc. may
void the user's authority to operate this equipment.
3001 Enterprise Street, Brea, CA 92821-6213, U.S.A.
714-996-4100 * 800-999-5225 * FAX 714-996-4900 * www.channelplus.com
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The ChannelPlus 5600 Series are digitally-tuned video modulators that convert any
baseband video and audio signal to a user-selected UHF, or Ultraband CATV. An
internal quartz crystal reference oscillator and PLL circuitry ensure drift-free
performance. The user selects the output frequency (channel) using the "select"
button to choose which modulator and the "program" button to enter the number of
the desired channel. Any TV connected to the output via coax can receive the
signals, when theTV is tuned tothe proper channel.
In addition, the 5600 series encodes each channel using the MTS stereo standard.
Stereo sound and surround sound information will be received by any MTS
compatible television receiver.
Models available:
5615 1 channel modulator
5625 2 channel modulator
5645 4 channel modulator
Changing modulation standards
Cable HRC andIRC considerations
Most cable services use IRC frequency assignments. This is the default for
the ChannelPlus modulators. However, if the cable service
uses HRC or the TV appears to search for the "house channels," the
modulator can be reprogrammed to use HRC assignments by entering the
number “ 98”. Set to IRC by entering a “99”. Both of these settings are only
used for setting HRC/IRC. : This setting can be entered on any
modulator channel, A, B, C, or D, and affects all channel assignments for
that unit. Cable channels must eitherbe IRC or HRC.
Mounting hole template
5600 series
Note
all all
To hang with connectors on the side
To hang with connectors on the bottom or top
Controls and Connections - Model 5645 shown
®
select
DCBA
Modulator LEDs show which
Option:
To connect the video and audio to a local monitor, use RCA type ‘Y’ adaptors and
remove the ’LOOP’ jumper for this channel.
The model 5615 has built in loop through connectors, so it does not require the
use of ‘Y’ adaptors.
model 5645 quad MTS stereo surround sound modulator
program
Program button enters
the channel number
Select button chooses
the modulator.
(5625 & 5645)
modulator is selected
STEREO
pll frequency control
OUTPUT
POWER
15VDC
600mA
CH D
CH C
VIDEO AUDIO L AUDIO R
RF output
Power supply
15VDC 600mA (5615 & 5625)
15VDC 900mA (5645 only)
Video inputs
Audio inputs: Right and Left
Terminating jumpers (remove for hi-Z)
VIDEO AUDIO LAUDIO R
CH B
CH A
VIDEO AUDIO L AUDIO R
C
ADB
ABCD
Removejumper for Hi-Z
(Seemanual)
Specifications: typical @ 25 C ± 5 C
OO
5600 Series modulators
Inputs
Video
performance
RF output
Power supply
Physical
MTS audio
performance
video
audio
differential gain
differential phase
signal/noise 55 dB
channel ranges
output level
IM distortion
alternate channel
model number
output current
600mA 600mA 900mA
output voltage
input power
power consumption
7 watts
height 3.8 cm (1.5 in)
width 20.0 cm (7.9 in)
depth 14.1 cm (5.5 in)
weight 1.19 kg (2 lbs 10 oz)
frequency range
signal/noise
separation
surround sound
noise reduction
1Vp-p@75
1 V rms @ 47k
UHF
14-64
+25 dBmV (85dBuV)
-45dBC @ 12MHz
105-125 VAC
20Hz - 12kHz
25 dB @ 1000Hz
Compatible with
Dolby full logic surround sound
Certified dbx
4%
<4º
(excluding 95-99)
-60 dBC
15 VDC
9 watts
65 dB
CATVstandard
65-125
564556255615
11 watts
2
7
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Things to watch for:
Sample System Diagram
No picture
… Verify that the video source is on and is producing a video
signal. Check that the TV and the modulator are tuned to the same channel.
For example, if the modulator is broadcasting on UHF channel 16, make
sure the TV is on UHF 16 rather than CATV 16. UHF 16 and CATV 16 are at
different frequencies.
Weak ChannelPlus UHF channel
… If the TV has a separate UHF input,
be sure thatit is connected.
LEDs blink
... You need to have one unused channel space between
channels. The display will blink if you have made an ‘illegal’ choice. See
the section onprogramming.
Herringbone interference on ChannelPlus channel (diagonal lines)
...
You may have chosen a channel number that is not completely vacant.
Distant UHF stations may be un-watchable, but will cause interference if
you try to create a new channel at the same frequency. Also, cable
companies often have extra signals where there should be none. Try
moving the ChannelPlus channel to another number. You may have to add
a low passfilter to remove cable company noise.
Herringbone interference on many channels (disappears when you
remove the modulator)
… The high output of the ChannelPlus modulator
can overdrive many RF amplifiers. Reduce the RF output using an
attenuator. (ChannelPlus coax panels are designed to take the full output
of these modulators.)
Audio volume seems low compared to broadcast
you can dohere, other than turnup the volume. Here is what is happening:
In broadcast television, the audio is compressed: The soft sounds are amplified
!
to be almost as loud as the loud sounds. The technical measure of this is
dynamic range, the ratio of loudest to softest sounds. The dynamic range of
video devices such as DVD and LV players is very great. Since most of a typical
movie consists of ‘soft’ sounds, the audio will seem quieter than normal
television channels. (This is also why commercials, which are the most
compressed, seem louderthan the program theyaccompany.)
To appear to be at the same volume as broadcast channels, the audio level in a
!
modulator is carefully increased. In the modulator, too high of signal level can
overdrive the MTScircuits and audio performancewill suffer.
No Stereo
be sure the TV is in the stereo mode for external speakers. Consult the TV manual,
this is oftenconfusing and is different fordifferent TV brands.
… When using the TV outputs to send audio to a home theater system,
…
There may be little
No color on ChannelPlus channels … You may have chosen the
incorrect cable standard. Not all televisions can accommodate the
1.25MHz frequency difference between the H and I cable standards.
See
the section onprogramming.
SATELLITE
RECEIVER
Video/audio out
OUTPUT
CH D
POWER
15VDC
CH C
600mA
VIDEO AUDIO L AUDIO R
Video/audio out
RG6 coax
Model 3308 Coax panel
(Distributes to as many as 8 TVs)
CATV/Antenna
CH B
CH A
VIDEO AUDIO L AUDIO R
VCR
VCR
CCTV Camera
at front door
Model 5645
Removejumper for Hi-Z
12:00
In this system, CATV or antenna
channels are available on all TVs. In
addition the following channels have
been added:
Channel 66 -Front door channel
Channel 68 -VCR
Channel 70 -Satellite receiver
Channel 72 -DVD player
ABCD
(Seemanual)
Video/audio out
DVD
6
3
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Programming Examples:
To program modulator to channelB67
®
model5445 quad digital modulator
select
program
Press button until
select
channel LED is on
B
ABCD
Wait for channel LED to light
select program
B
(ready for next number.)
ABCD
select program
DCBA
Press button
6
ABCD
Press button
7
ABCD
pllfrequency control
program
times
select program
program
more times
select program
Valid Channels:
Channel Spacing:
Error indication:
14-64: UHF channels
65-125: CATV channels
95-99: not valid
Skip at least one number between channels.
Channels 14 and 16: OK.
Channels 14 and 15: Illegal.
If an error has occurred or an incorrect channel is
entered, the LED will flash quickly for a second and
return to theprevious settings.
If two adjacent channels are selected, the unit will
accept the entry but will blink the LEDs of channels
that are too close. If this happens, re-program one
of the channelsto move it away from the other.
To program modulator to channelC 120
®
select
program
Press button until
select
channel LED is on
C
ABCD
Wait for channel LED to light
select program
C
(ready for next number.)
ABCD
Wait for channel LED to light
select program
C
(ready for next number.)
ABCD
select program
DCBA
Press button
time
1
ABCD
Press button
more times
2
ABCD
Press button
more times
10
(press 10 to enter a ‘zero’)
ABCD
model5445 quad digital modulator
pllfrequency control
program
select program
program
select program
program
select program
Channel number
readback:
A readback mode will display the current channel
assignments.
To readback modulator C channel assignment
(example: C has been programmed to channel )108
®
model5445 quad digital modulator
select
program
Press button until
select
channel LED is on
C
ABCD
select program
Led blinks time and pauses1
ABCD
select program
Led blinks times8
ABCD
select program
DCBA
Hold button down
for 5 seconds, then release.
ABCD
Led blinks times, pauses
(“10” is read back as 0)
ABCD
pllfrequency control
program
select program
10
select program
4
5
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