10/6/10 888-2629-200 4-51
WARNING: Disconnect primary power prior to servicing.
Section 4 Theory of Operation
Maxiva ULX COFDM Series
Figure 4-22 Maxiva 16 Module Transmitter Schematic Orientated Block Diagram
Exciter:
APEX-M2X
ATSC Mode
888-2624-003
Exciter:
APEX-M2X
DVB-T Mode
888-2624-003
Exciter
Switcher
(In TCU)
801-0221-141
3-Way Splitter,
SP3, Page 3 of
Main Cabinet
843-5601-001
Predriver
Assembly (A12)
843-5601-062
IPA Backplane A7
801-0222-131
IPA Module B
843-5601-012
Driver
2-Way
Splitter
8-Way
Splitter
IPA Module A
843-5601-012
PA Backplane A5
801-0222-101
PA Module 18
843-5601-012
Switch
8-Way
Splitter
PA Module 17
843-5601-012
PA Module 16
843-5601-012
PA Module 15
843-5601-012
PA Backplane A6
801-0222-101
PA Module 14
843-5601-012
PA Module 13
843-5601-012
PA Module 12
843-5601-012
PA Module 11
843-5601-012
PA Backplane A8
801-0222-101
PA Module 8
843-5601-012
PA Module 7
843-5601-012
PA Module 6
843-5601-012
PA Module 5
843-5601-012
PA Backplane A9
801-0222-101
PA Module 4
843-5601-012
PA Module 3
843-5601-012
PA Module 2
843-5601-012
PA Module 1
843-5601-012
4
4
4
S2
SP7
SP6
SP5
4
Drawing
RF drive for 2nd 2K unit
RF drive for 3rd 2K unit
8-Way Combiner A12
Found on sheet 9 of 843-5601-001
8-Way Combiner A13
Found on sheet 9 of 843-5601-001
2-Way Combiner A14
Found on sheet 9 of 843-5601-001
Output to
PA Cabinet
Combiner or
High Power
Filter.
separate manual
separate manual
These blocks are shown on the Main
Cabinet Wiring Diagram, 843-5601-001.
Driver Switch is on sheet 4, and Splitters
are on sheets 4 or 5, depending on
configuration.
J4
J5
J8
J3
J4
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