11
AMB 307
Part N
o
: 9730.01
COFDM Modulator
ASI-TS
→
DVB-T (COFDM)
B
LINE
Item
Message
Message type
Explanation
17
Up Converter: PLL1 not locked
CRITICAL
no funktion at the PLL 1 converter
18
Up Converter: PLL2 not locked
CRITICAL
no funktion at the PLL 2 converter
19
Up Converter: IF input too small
WARNING
IF input too small at the Up converter
20
Up Converter: IF input too large
WARNING
IF input too large at the Up converter
21
Up Converter: RF output too small
WARNING
RF output too small at the Up converter
22
Up Converter: RF output too large
WARNING
RF output too large at the Up converter
23
Up Converter ok
INFORMATION
Up converter works correctly
11. Block diagram
12. Head end bus structure
ASI
frontend
PID
filter
PID
filter
multiplexer
with
PCR correct.
multiplexer
with
PCR correct.
SI/ PSI
processor
flash
SDRAM
COFDM
modulator
BP
IF
RF
D
A
TS
TS
TS
TS
TS
TS
CTRL
CTRL
SI/ PSI
data
SI/ PSI
data
clock
RF
ASI
clock
HCB x00
Headend
Controller
BEB x00
Bus Extender
Module
signal processing
unit
H
C
B
x
00
M
od
ul
e
A
D
D
R
. 1
5
B
E
B
x
00
A
D
D
R
. 0
1
B
E
B
x
00
A
D
D
R
. 0
2
B
E
B
x
00
A
D
D
R
. 1
5
M
od
ul
e
A
D
D
R
. 0
1
M
od
ul
e
A
D
D
R
. 0
1
M
od
ul
e
A
D
D
R
. 0
1
M
od
ul
e
A
D
D
R
. 1
5
M
od
ul
e
A
D
D
R
. 1
5
The number of the possible module connections (01 ... 15) to a
BEB x00 depends on the total power consumption of this line!
