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Side 1/2
AMCM-860 Quick Reference Sheet 651204600J
VIDEO
IN
RF
OUT
P
O
W
E
R
11
14
13
12
STEREO
RIGHT
LEFT
MONO
15
AU DI O I N
1. Stereo Indicator - Lit when video and stereo audio are present.
2. Audio/Video Ratio Adjustment - Adjustment of the A/V Ratio is permitted
from approximately -19 dB (full clockwise position) to approximately -10 dB (full
counterclockwise position) by rotating the potentiometer.
3. Video Adjustment - Adjustment of the Video Modulation Level is permitted by
rotating the potentiometer.
4. Video Over Modulation LED Indicator
5. Audio Adjustment - Adjustment of the Audio Modulation Level is permitted by
rotating the potentiometer.
6. Audio Over Modulation LED Indicator
7. Up/Down Buttons - Used to set the desired channel or mode.
8. +100 Indicator - Lights when channel settings are 100 -135.
9. Channel ENT Button - Enter button used to enter a desired channel or mode.
10. RF Level Adjustment - Potentiometer adjustment used to set the output level.
Has a range of 15 dB, optimum performance with a 10 dB adjustment.
Operating Controls and Indicators
Front Panel
Programming the Unit
The AMCM unit comes factory set to operate in the Standard CATV mode.
The unit has 4 valid operating modes: STD CATV, IRC, HRC & Broadcast UHF/VHF.
(Skip to the next section for programming the operating mode)
Programming a Channel
1. Navigate to the desired channel number by depressing the CH UP and p q
DN buttons.
a. Continuous past 99 for channels 100-135, the +100 red LED will illuminate.
2. Press the ENT button when you reach the desired channel setting. This will tune
the modulator output to the corresponding channel frequency for this entry.
a. The LED display will blink continuously during the channel programming
process and will not change the output frequency the unit is programmed until
the ENT button is depressed.
b. The unit has a special feature that alerts an operator of an inadvertent or
desired change to the channel display by flashing the LED readout. The LED
display will continue to flash for 30 seconds if the ENT button is not depressed
and then will return to the display of the previously programming channel
entry setting.
Operating Mode Selection
The unit has 4 valid operating modes: STD CATV, IRC, HRC & Broadcast UHF/VHF.
The AMCM unit comes factory set to operate in the Standard CATV mode.
To change the operating mode:
1. Simultaneously depress the CH p UP and q DN buttons for approximately
5 seconds.
2. The Channel LED display will switch to the operating mode selection.
3. Use the CH p UP and q DN buttons to select the desired mode:
a. C = STD CATV
b. H = HRC
c. I = IRC
d. U = Broadcast (VHF/UHF)
4. After selecting the desired mode depress the ENT button to set the mode.
5. The unit will return to the channel display mode.
a. Programming will reflect the mode chosen – See Appendix A for a detailed
frequency plan.
b. The programming mode will also flash continuously during the programming
process. The LED display will continue to flash for 30 seconds if the ENT
button is not depressed and then will return to the display of the previously
programming channel & mode entry setting.
11. Video Input
“F” Connector
1VP-P for 87.5%
depth of mod
12. Right Stereo Audio In
RCA Connector
0.5 - 4.0 VP-P
(Constant AGC Range)
13. Left Stereo Audio or Mono In
RCA Connector
0.5 - 4.0 VP-P
(Constant AGC Range)
14. Power Connector
15. RF Output
“F” Connector
See Appendix A on the reverse of this sheet for a complete list of available channels and corresponding frequency plan
It is strongly recommended to use the Blonder Tongue MIPS-12C or the MIRC-4B/MIRC-4C power supplies with the AMCM-860. It is
also recommended to use the optional headend fan unit (QTHF, Stock No. 6235) when deploying more than 6 AMCM-860 units in the
MIRC-12V chassis. A rack space above and below the chassis unit is suggested for heat dissipation and air flow.
CAUTION
Rear Panel
AMCM
A/V
RF
Level
ENT
STEREO
860D
AUD
7
1
10
+100
UP DN
CH
VID
2
9
8
5 3
46
AMCM-860 Quick Reference Sheet 651204600J
Appendix A - Unit Operating Frequency Plan
VHF Broadcast Channels
Channel Video (MHz)
2 55.25
3 61.25
4 67.25
5 77.25
6 83.25
7 175.25
8 181.25
9 187.25
10 193.25
11 199.25
12 205.25
13 211.25
UHF Broadcast Channels
Channel Video (MHz)
14 471.25
15 477.25
16 483.25
17 489.25
18 495.25
19 501.25
20 507.25
21 513.25
22 519.25
23 525.25
24 531.25
25 537.25
26 543.25
27 549.25
28 555.25
29 561.25
30 567.25
31 573.25
32 579.25
33 585.25
34 591.25
UHF Broadcast Channels
Channel Video (MHz)
35 597.25
36 603.25
37 609.25
38 615.25
39 621.25
40 627.25
41 633.25
42 639.25
43 645.25
44 651.25
45 657.25
46 663.25
47 669.25
48 675.25
49 681.25
50 687.25
51 693.25
52 699.25
53 705.25
54 711.25
55 717.25
56 723.25
57 729.25
58 735.25
59 741.25
60 747.25
61 753.25
62 759.25
63 765.25
64 771.25
65 777.25
66 783.25
67 789.25
68 795.25
69 801.25
Incremental Harmonic
EIA Standard Visual Carrier Visual Carrier
Chan. Visual Carrier (IRC) (HRC)
02 55.2500 55.2625 54
03 61.2500 61.2625 60
04 67.2500 67.2625 66
01 NA 73.2625 72
05 77.2500 79.2625 78
06 83.2500 85.2625 84
95 91.2500 91.2625 90
96 97.2500 97.2625 96
97 103.2500 103.2625 102
98 109.2750 109.2750 Cannot lock to comb
99 115.2750 115.2750 ref: refer to FCC regs
14 121.2625 121.2625 120
15 127.2625 127.2625 126
16 133.2625 133.2625 132
17 139.2500 139.2625 138
18 145.2500 145.2625 144
19 151.2500 151.2625 150
20 157.2500 157.2625 156
21 163.2500 163.2625 162
22 169.2500 169.2625 168
07 175.2500 175.2625 174
08 181.2500 181.2625 180
09 187.2500 187.2625 186
10 193.2500 193.2625 192
11 199.2500 199.2625 198
12 205.2500 205.2625 204
13 211.2500 211.2625 210
23 217.2500 217.2625 216
24 223.2500 223.2625 222
25 229.2625 229.2625 228
26 235.2625 235.2625 234
27 241.2625 241.2625 240
28 247.2625 247.2625 246
29 253.2625 253.2625 252
30 259.2625 259.2625 258
31 265.2625 265.2625 264
32 271.2625 271.2625 270
33 277.2625 277.2625 276
34 283.2625 283.2625 282
35 289.2625 289.2625 288
36 295.2625 295.2625 294
37 301.2625 301.2625 300
38 307.2625 307.2625 306
39 313.2625 313.2625 312
40 319.2625 319.2625 318
41 325.2625 325.2625 324
Incremental Harmonic
EIA Standard Visual Carrier Visual Carrier
Chan. Visual Carrier (IRC) (HRC)
42 331.2750 331.2750 330
43 337.2625 337.2625 336
44 343.2625 343.2625 342
45 349.2625 349.2625 348
46 355.2625 355.2625 354
47 361.2625 361.2625 360
48 367.2625 367.2625 366
49 373.2625 373.2625 372
50 379.2625 379.2625 378
51 385.2625 385.2625 384
52 391.2625 391.2625 390
53 397.2625 397.2625 396
54 403.2500 403.2625 402
55 409.2500 409.2625 408
56 415.2500 415.2625 414
57 421.2500 421.2625 420
58 427.2500 427.2625 426
59 433.2500 433.2625 432
60 439.2500 439.2625 438
61 445.2500 445.2625 444
62 451.2500 451.2625 450
63 457.2500 457.2625 456
64 463.2500 463.2625 462
65 469.2500 469.2625 468
66 475.2500 475.2625 474
67 481.2500 481.2625 480
68 487.2500 487.2625 486
69 493.2500 493.2625 492
70 499.2500 499.2625 498
71 505.2500 505.2625 504
72 511.2500 511.2625 510
73 517.2500 517.2625 516
74 523.2500 523.2625 522
75 529.2500 529.2625 528
76 535.2500 535.2625 534
77 541.2500 541.2625 540
78 547.2500 547.2625 546
79 553.2500 553.2625 552
80 559.2500 559.2625 558
81 565.2500 565.2625 564
82 571.2500 571.2625 570
83 577.2500 577.2625 576
84 583.2500 583.2625 582
85 589.2500 589.2625 588
86 595.2500 595.2625 594
87 601.2500 601.2625 600
Incremental Harmonic
EIA Standard Visual Carrier Visual Carrier
Chan. Visual Carrier (IRC) (HRC)
88 607.2500 607.2625 606
89 613.2500 613.2625 612
90 619.2500 619.2625 618
91 625.2500 625.2625 624
92 631.2500 631.2625 630
93 637.2500 637.2625 636
94 643.2500 643.2625 642
100 649.2500 649.2625 648
101 655.2500 655.2625 654
102 661.2500 661.2625 660
103 667.2500 667.2625 666
104 673.2500 673.2625 672
105 679.2500 679.2625 678
106 685.2500 685.2625 684
107 691.2500 691.2625 690
108 697.2500 697.2625 696
109 703.2500 703.2625 702
110 709.2500 709.2625 708
111 715.2500 715.2625 714
112 721.2500 721.2625 720
113 727.2500 727.2625 726
114 733.2500 733.2625 732
115 739.2500 739.2625 738
116 745.2500 745.2625 744
117 751.2500 751.2625 750
118 757.2500 757.2625 756
119 763.2500 763.2625 762
120 769.2500 769.2625 768
121 775.2500 775.2625 774
122 781.2500 781.2625 780
123 787.2500 787.2625 786
124 793.2500 793.2625 792
125 799.2500 799.2625 798
126 805.2500 805.2625 804
127 811.2500 811.2625 810
128 817.2500 817.2625 816
129 823.2500 823.2625 822
130 829.2500 829.2625 828
131 835.2500 835.2625 834
132 841.2500 841.2625 840
133 847.2500 847.2625 846
134 853.2500 853.2625 852
135 859.2500 859.2625 858
Troubleshooting
One Jake Brown Road
Old Bridge, NJ 08857-1000 USA
(800) 523-6049 • (732) 679-4000 • FAX: (732) 679-4353
www.blondertongue.com
©2011 Blonder Tongue Laboratories, Inc. All rights reserved. Specifications are subject to change without notice. Trademarks are the property of their respective owner.
Jumper 7
Pin
1 2 3
1
2
3
3 2 1
Jumper 6 Headers 9, 11 & 10
Jumper 2
Stereo PCB
Correction Suggestions
The User should perform the following steps to correct an Error Condition:
1. Check that the Channel Display is set to the desired channel & reset as appropriate
2. Check that the unit is set to the appropriate desired operating mode
3. Verify the unit output on a spectrum analyzer
4. Disconnect & reconnect power to the unit
If an error condition continues to be displayed, unit should be replaced and serviced
A continuous flashing Channel Display indicates an Error Condition detected by the unit
microcontroller. Sample conditions include:
• Channel Selector Entry does not match the channel number on which the modulator is
operating, the display will flash for 30 seconds and then revert back to the previous CH
entry
• E1 is displayed if the Input & VCO is Not Locked
• E2 is displayed if the Output VCO is Not Locked
• E3 is displayed if both VCO's are Not Locked
Jumper Settings Shown For Optional Stereo PCB Installation
JUMPER SETTINGS
MONO
Stock No. 7766D
J2 − PIN 2-3
J6 − PIN 2-3
J7 − PIN 2-3
STEREO
Stock No. 7766DS
J2 − PIN 1-2
J6 − PIN 1-2
J7 − PIN 1-2

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Modell: AMCM-860DS

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