M860
6
Rev. 06/03
Ph: 800-421-6511
www.picomacom.com
Operation and Controls
POWER
AURAL LEVEL
AUDIO MODULATION
VIDEO MODULATION
OUTPUT
LEVEL
TEST POINT
806MHz Channelized-Agile CATV A/V Modulator
M860
IRC
HRC
STD
12.5K
25K
LOCK
CH
CH
MODE
OFFSET
LOCK
STORE
-30 dB
1.
Power on LED:
Indicates power is on when lit.
2.
Channel Display:
Indicates current channel selection.
3.
Channel Indicator:
LED’s indicate 12.5K, 25K offsets or LOCK channel status.
4.
Channel:
Use this button to select higher channel.
5.
Channel:
Use this button to select lower channel.
6.
Mode:
The RF level is set with this control.
7.
Offset:
Used to tune modulator to HRC or IRC offsets.
8.
Lock:
Use to block selected channels from being changed.
9.
Store:
Push this button to store channel selection in non-volatile memory.
10. Aural Level:
Used to set video/audio ratio.
11. Audio Modulation Indicator:
Indicates audio over-modulation when lit.
12. Audio Modulation adjustment:
Used to set audio modulation level. (volume).
13. Video Modulation adjustment:
Used to set video modulation adjust.
14. Video Modulation Indicator:
Indicates video over-modulation when lit.
15. Output Level:
Used to set RF output level.
16. -30 dB Output test monitor:
Connect this port to monitor modulator RF output level.
Front Panel Control
RF OUT
EXT. 4.5 MHz IN
IF OUT
IF IN
VIDEO IN
AUDIO IN
117VAC
60Hz 38W
600W MAX
125VAC 0.5A
CAUTION: FOR CONTINUED PROTECTION AGAINST FIRE
HAZARD, USE ONLY WITH SAME TYPE 0.5A 125V FUSE
L GND R
FUSE
1.
RF Out:
Output port to connect unit to distribution system.
2.
Video Input:
Accepts any baseband video output source such as a satellite
receiver, VCR, security camera or cable converter.
3.
Audio Input:
Accepts any baseband audio output source such as a satellite
receiver, VCR, security camera or cable converter.
4.
External 4.5MHz (BTSC) Input:
Stereo input from BTSC encoder.
5.
I.F. Output:
To I.F. input or to scrambling device.
6.
I.F. Input:
Input from scrambling device or I.F. output.
7.
Fuse holder:
0.5 Amp slow-blow fuse.
8.
Convenience Outlet:
Provides 120 Vac, 60Hz at 600 watts max.
9.
Power cable:
The three-prong type power plug connects to a 120 VAC, 60 Hz
electrical output.
Back Panel Control
1
2
1
2
3
4
5
6
7
8
9
3
4
6
8
5
7
9
11
10
12
13
14
15
16
