MP1721
Multi- Pictures Synthesizer Ten Pictures’ Operating Instructions

The
front panel keystroke instructions:
Switch + and switch -: The multi- pictures
synthesizers most connect ten ways video signals. It switch any way
video signal using the switch key
to give the monitoring devices. When multi- pictures
synthesizer and radio frequency demodulators’ appendixes joint to
use, it will supporting switches the key and the channel
initialization key group complete the channel initialization work
together.
Manual turning
the page: When multi- pictures synthesizer and radio frequency
demodulators’ appendixes joint to use, pressing this to be carry
on turning the page operation.
Automatic turns
the page: When multi- pictures synthesizer and radio
frequency demodulators’ appendixes
joint to use, pressing this multi- pictures synthesizers carry on
automatic turning the page operations.
H/SC selection
key: When multi- pictures synthesizers work in outside
phase-lock mode, the "H/SC" selection key uses in selecting the
adjustment of line or the sub-carrier phase. The good phasing scope
is +3.5us to -11.5 us. The sub-carrier phasing scope is 0 to 360°.
This key uses "+"
or "- " adjustment together.
Number of
pages/Time selection key: Using in setting to turn pages
automatically and the time interval. The number of pages scope is
1-4 pages, the time-gap scope is 1-250 seconds. This key uses
"+" or "- " adjustment together.
Character
opening key: The character black box selection key (nothing).
Character
edition key: After pressing this, you can modify the
alphanumeric character and English letter
which in the multi- pictures
Superimposes.
This key pressing in the number of times correspondence picture the
character position, and correspondingly the character glittered a
time, prompting this character to modification. This key uses
"+" or "- " adjustment together.
RF pre-placed
key: After pressing this key to start, the radio frequency channels
setup to work. This key uses "switch +", "switch
-", "manual turning " key, "the frequency
band" selection key, "quick/slow "key, "+"
adjustment key, "- "adjustment key and "store"
key together.
Frequency band
selection key: Using in designating to adjust the channel band.
Pressing this key, frequency band between VLF,VHF, UHF changes.
Quick/slow key:
Pressing this key to designate the channel quick adjustment or slow
adjustment. The quick adjustment presses "+" adjustment
key one time, and fraction frequency data is +128. The slow
adjustment presses "+" adjustment key one time, and
fraction frequency data is +1.
"+ "
adjustment key and "-
"adjustment key: Using in adjusting the line/sub-carrier
phase, automatically turning the pages /automatically turning the
pages time, and the character and the channel pre-placed data.
Store key:
Using in the memory channel harmonious result.
Exit key: After
each parameter adjustment finished, you press this key to exit the
corresponding working state.
The rear panel wiring plug explanation: The MP1721 rear panel
installs 13 Q9 video frequency plug and one 9 cores strings mouth D
shape plug. Among 13 Q9 plug 10 corresponds 10 ways video input
signal, and 2 corresponds 2 channel video output signal, and1
corresponds the datum video input signal. 2 channel output signals have
one channel for cutting the video signal, another channel for the fixed
multi- pictures video signal, using in broadcasting. As the chart
shows:

MP1721
and multi-channel demodulator joint graphical representation

Because
control signal requires MP1721’s demodulator signal jointing
correspondingly, otherwise it will not be able to complete the
channel initialization operation.
Each
operation demonstration:
After the MP1721 opening, computer liquid crystal board displays:
M10
represents the MP1721 switching output is 10 pictures video signal.
PAGE1 represents picture for first page of content. GENLOCK
represents the computer working in the outside phase-lock state.
Automatically
turning the page operation:
Pressing "automatically turning page" key MP1721 namely to
start to carry on automatically turning the page, the liquid crystal
board display as follows:

Automatically
turning the pages and turns the page time-gap setting method see the
explanation at the back. When you need to exit, you may press this
key or "exit" key then exit automatically turning
laminated condition.
Channel
initialization:
If you want to
pre-place the second page and the channel 5 initialize as broadcast
television 21st channel, the setting operating process:
1) Joining
MP1721 and the demodulator appendix, the MP1721 switches output and
delivers the monitoring device input end, and puts through various
power sources.
2) Pressing
" manually turning the page" key selection-correlated
page, after pressing this key to output switch to the 2nd page of
picture content, liquid crystal board PAGE1 becomes to PAGE2.
3) After
pressing "switch +" or "switch -" key, choosing
setting channel, you want to establish channel 5 then pressing
"switch +" key to switch to the fifth channel, in liquid
crystal board M21 becomes to CH5.
4) Pressing "RF initialization" key to choice channel
initialization item, the liquid crystal board demonstrating as
follows:

* CHPST
(CHANNEL PRESET) represents the channel pre-placed state.
* VH represents
choosing the frequency band.
* NOR
represents coarse adjustment.
* 0CE4 is the
original hexadecimal system fraction frequency data in the current
channel.
5) Pressing
"the frequency band" selection key selects to the
Frequency band you need, causing the liquid crystal board VHF to
UHF.
6)
Pressing the "+" adjustment key, the hexadecimal system
data of liquid crystal board starts to accumulate. When the
monitoring device appears the 21st channel picture, you loose the
keystroke. By now the hexadecimal system data of liquid crystal
board should be "23D4".
7)
Pressing the "quick/slow "selection key, the liquid
crystal board displays NOR becoming FIN. By now reduplicating
process six, until the monitoring device image is satisfied.
8) Pressing the "store" key to store the channel, by now
the liquid crystal board glitters one time for confirming the
storage operation.
9)
If you must continue to set the other channel of page, please
reduplicate processes three to eight. If you must continue to set
the channel of other pages, please reduplicate process two to eight.
If you must finish setting work to press "exit
" the key.
The appendix two have the comparative
table of the broadcast television channel and the fraction frequency
data for users.
Character adjustment operation:
1) Pressing "switch +" or
"switch -" key selects the multi-pictures output.
2) Pressing " manually turning
the page" key selects to edit character page, as PAGE2.
3) Pressing "character edition" key, the first character
of picture glitters one time, by now the liquid crystal board
displaying:

CHREDITING represents character
edition state for current. 001 represents characters position for
current. Each small picture of MP1721 synthesis picture may
superimpose two alphanumeric characters (0-9). Main picture does not
superimpose the character, so 21 pictures character position scope
is 001-040, and 17 pictures characters position scope is 001-032.
4) Pressing "+ " adjustment
key or "- " adjustment key, then you adjust the
corresponding character, and the character change through the
picture surveillance.
5) After the characters adjust, you
can press "exit" key
to finish character adjustment operation.
Automatically turning the page and
automatically the turning pages of time
setup:
1) Pressing "page/time "selection key selects number of
pages adjustment or time adjustment. When you select number of pages
adjustment, the liquid crystal board displaying:

When
you select number of pages adjustment, the liquid crystal board
displaying:
2) Pressing down "+"
adjustment key or "- " adjustment key, then you adjust the
number of pages or the time. The number of pages adjustment scope is
1-4 page, and the time adjustment scope is 1-255 second.
3) Pressing "exit" key to
finish adjustment operation.
When the MP1721 work must adjust
the line or the sub-carrier phase new
tunes entire method in the outside
phase-lock mode as follows:
1) Pressing "H/SC the
"selection key selects the good phasing or the sub-carrier
phasing. You select the good phasing, the liquid crystal board
displaying:
When
you select the sub-carrier phasing, the liquid crystal board
displays that:

2) Pressing down "+" or
"- " adjustment key then adjusts the good phase or the
sub-carrier phase. The good phasing scope is +11 to -39 (+3.5us to
13.5us), the sub-carrier phasing scope is 0-255 (0-360°).
3) Pressing "exits" key to
finish adjustment operation.
Appendix
one the rear panel of multi-channel demodulator shows

Appendix two channels and fraction
frequency data comparative chart
|
Channel
Code
|
Vibration frequency MHz |
Frequency range |
Hex
|
Pix carrier
MHz
|
|
ds1
|
87.75
|
48.5-56.5
|
57C
|
49.75
|
|
ds2
|
95.25
|
56.5-64.5
|
5F4
|
57.75
|
|
ds3
|
103.75
|
64.5-72.5
|
67C
|
65.75 |
|
ds4
|
115.25
|
76-84
|
734
|
77.25
|
|
ds5
|
123.25
|
84-92
|
7B4
|
85.25
|
|
z1
|
150.25
|
111-119
|
964
|
112.25
|
|
z2
|
158.25
|
119-127
|
9E4
|
120.25
|
|
z3
|
166.2
|
127-135
|
A64
|
128.25
|
|
z4
|
174.25
|
135-143
|
AE4
|
136.25
|
|
z5
|
182.25
|
143-151
|
B64
|
144.25
|
|
z6
|
190.25
|
151-159
|
BE4
|
152.25
|
|
z7
|
198.25
|
159-167
|
C64
|
160.25
|
|
ds6
|
206.25
|
167-175
|
CE4
|
168.25
|
|
ds7
|
214.25
|
175-183
|
D64
|
176.25
|
|
ds8
|
222.25
|
183-191
|
DE4
|
184.25
|
|
ds9
|
230.25
|
191-199
|
E64
|
192.25
|
|
ds10
|
238.25
|
199-207
|
EE4
|
200.25
|
|
ds11
|
246.25
|
207-215
|
F64
|
208.25
|
|
ds12
|
254.25
|
215-223
|
FE4
|
216.25
|
|
z8
|
262.25
|
223-231
|
1064
|
224.25 |
|
z9
|
270.25
|
231-239
|
10E4
|
232.25
|
|
z10
|
278.25
|
239-247
|
1164
|
240.25 |
|
z11
|
286.25
|
247-255
|
11E4
|
248.25
|
|
z12
|
294.25
|
255-263
|
1264
|
256.25 |
|
z13
|
302.25
|
263-271
|
12E4
|
264.25
|
|
z14
|
310.25
|
271-279
|
1364
|
272.25 |
|
z15
|
318.25
|
279-287
|
13E4
|
280.25
|
|
z16
|
326.25
|
287-295
|
1464
|
288.25 |
|
z17
|
334.25
|
295-303
|
14E4
|
296.25
|
|
z18
|
342.25
|
303-311
|
1564
|
304.25 |
|
z19
|
350.25
|
311-319
|
15E4
|
312.25
|
|
z20
|
358.25
|
319-327
|
1664
|
320.25
|
|
z21
|
366.25
|
327-335
|
16E4
|
328.25
|
|
z22
|
374.25
|
335-343
|
1764
|
336.25
|
|
z23
|
382.25
|
343-351
|
17E4
|
344.25
|
|
z24
|
390.25
|
351-359
|
1864
|
352.25
|
|
z25
|
398.25
|
359-367
|
18E4
|
360.25
|
|
z26
|
406.25
|
367-375
|
1964
|
368.25
|
|
z27
|
414.25
|
375-383
|
19E4
|
376.25
|
|
z28
|
422.25
|
383-391
|
1A64
|
384.25
|
|
z29
|
430.25
|
391-399
|
1AE4
|
392.25
|
|
z30
|
438.25
|
399-407
|
1B64
|
400.25
|
|
z31
|
446.25
|
407-415
|
1BE4
|
408.25
|
|
z32
|
454.25
|
415-423
|
1C64
|
416.25
|
|
z33
|
462.25
|
423-431
|
1CE4
|
424.25
|
|
z34
|
470.25
|
431-439
|
1D64
|
432.25
|
|
z35
|
478.25
|
439-447
|
1DE4
|
440.25
|
|
z36
|
486.25
|
447-455
|
1E64
|
448.25
|
|
z37
|
494.25
|
455-463
|
1EE4
|
456.25
|
|
z38
|
502.25
|
463-471
|
1F64
|
464.25
|
|
ds13
|
509.25
|
470-478
|
1FD4
|
471.25
|
|
ds14
|
517.25
|
478-486
|
2054
|
479.25
|
|
ds15
|
525.25
|
486-494
|
20D4
|
487.25
|
|
ds16
|
533.25
|
494-502
|
2154
|
495.25
|
|
ds17
|
541.25
|
502-510
|
21D4
|
503.25
|
|
ds18
|
549.25
|
510-518
|
2254
|
511.25
|
|
ds19
|
557.25
|
518-526
|
22D4
|
519.25
|
|
ds20
|
565.25
|
526-534
|
2354
|
527.25
|
|
ds21
|
573.25
|
534-542
|
23D4
|
535.25
|
|
ds22
|
581.25
|
542-550
|
2454
|
543.25
|
|
ds23
|
589.25
|
550-558
|
24D4
|
551.25
|
|
ds24
|
597.25
|
558-566
|
2554
|
559.25
|
|
ds25
|
645.25
|
606-614
|
2854
|
607.25
|
|
ds26
|
653.25
|
614-622
|
28D4
|
615.25
|
|
ds27
|
661.25
|
622-630
|
2954
|
623.25
|
|
ds28
|
669.25
|
630-638
|
29D4
|
631.25
|
|
ds29
|
677.25
|
638-646
|
2A54
|
639.25
|
|
ds30
|
685.25
|
646-654
|
2AD4
|
647.25
|
|
ds31
|
693.25
|
654-662
|
2B54
|
655.25
|
|
ds32
|
701.25
|
662-670
|
2BD4
|
663.25
|
|
ds33
|
709.25
|
670-678
|
2C54
|
671.25
|
|
ds34
|
717.25
|
678-686
|
2CD4
|
679.25
|
|
ds35
|
725.25
|
686-694
|
2D54
|
687.25
|
|
ds36
|
733.25
|
694-702
|
2DD4
|
695.25
|
|
ds37
|
741.25
|
702-710
|
2E54
|
703.25
|
|
ds38
|
749.25
|
710-718
|
2ED4
|
711.25
|
|
ds39
|
757.25
|
718-726
|
2F54
|
719.25
|
|
ds40
|
765.25
|
726-734
|
2FD4
|
727.25
|
|
ds41
|
773.25
|
734-742
|
3054
|
735.25
|
|
ds42
|
781.25
|
742-750
|
30D4
|
743.25
|
|
ds43
|
789.25
|
750-758
|
3154
|
751.25
|
|
ds44
|
797.25
|
758-766
|
31D4
|
759.25
|
|
ds45
|
805.25
|
766-774
|
3254
|
767.25
|
|
ds46
|
813.25
|
774-782
|
32D4
|
775.25
|
|
ds47
|
821.25
|
782-790
|
3354
|
783.25
|
|
ds48
|
829.25
|
790-798
|
33D4
|
791.25
|
|
ds49
|
837.25
|
798-806
|
3454
|
799.25
|
|
ds50
|
845.25
|
806-814
|
34D4
|
807.25
|
|
ds51
|
853.25
|
814-822
|
3554
|
815.25
|
|
ds52
|
861.25
|
822-830
|
35D4
|
823.25
|
|
ds53
|
869.25
|
830-838
|
3654
|
831.25
|
|
ds54
|
877.25
|
838-846
|
36D4
|
839.25
|
|
ds55
|
885.25
|
846-854
|
3754
|
847.25
|
|
ds56
|
893.25
|
854-862
|
37D4
|
855.25
|
|
ds57
|
901.25
|
862-870
|
3854
|
863.25
|
|