User's Manual

AT7120 Owner Manual Rev. 1.1 – March 2009 7/76
AT7120 Block Diagram
+28V
RELIGADO
UHF ATSC EXCITER
MODULE 4407
+8V
+15V
KEYBOARD
CIM3003
LINEAR EQUIPAMENTOS ELETRÔNICOS
DISPLAY
CIM3004
RESTART
RF
OUT
ALARME DE TEMPERATURA
LEITURA DE POTÊNCIA DIRETA
FAN
FILTER FAN
CIM6646
+24V
IN
OUT
EXC.TEMPERATURE PA1 TEMPERATURE PA2 TEMPERATURE
ALARMS
SHUT DOWN 1
CONTROL UNIT
CIM3297
(CIP8231)
MAIN POWER SUPPLY
MODULE 4401
ID
CURRENT
READING
+28V
READING
+18V
READING
-18V
READING
+9V
READING
+18V-18V
+9V
+28V
FIXO
+28V
RES.
1 SUBORDINATE
POWER SUPPLY
MODULE 4402
SHUT DOWN 1
+28V
FIXO
AC FAN
+32V
(VA)
+32V
(VB)
TEMP
PA 1
PA1
TEMP
ALARM
ID1
READ
ID2
READ
+28V
FIXO
UHF ATSC
AMPLIFIER
PA1
MODULE 4442
IN OUT
+32V
(VA)
+32V
(VB)
1 SUBORDINATE
POWER SUPPLY
PA1
TEMP
8VSB
MODULATOR AND
MASTER CLOCK
UHF UPCONVERTER
MODULE 4492
+18V-18V
RF
OUT
SW2
TEMP
ENABLE Q DAC
ENABLE I DAC
CLOCK DAC
DATA DAC
ALC
+28V
FIXO
CLOCK PLL
LOCK DETECT
MODULE 4549
+5V+2.5V +18V-18V
10MHz
OCXO
MODULE 4281
RD
ENA
CLK
DIN
DO
LD
CONTROL UNIT
+28V
MODULE 4567
DC CONVERTER
+5V+2.5V
MEMORY
MEMORY
CARD
CARD
CIP8421
CIP8421
MEMORY INTERFACE
MEMORY INTERFACE
CIP8437
CIP8437
DCLK
ASDI
CS
DATA
FROM
CONTROL
UNIT
110 / 220V MONOPHASIC / BIPHASIC
ON/OFF SWITCH
5A / 220V 10A / 110V
FUSE FUSE
5A / 220V 10A / 110V
120W
rms
RF OUT
RF PW
REF PW
+15V
REFLT
IN
OUT
MODULE
4166
FPB
MODULE
4252
310M IN ASI IN
EXT. REF. IN
EXCITER FORWARD POWER
FORWARD POWER
REFLECTED POWER
I1 MAIN POWER SUPPLY
PA1 CURRENT ID1 PA1 CURRENT ID2 PA2 CURRENT ID3 PA2 CURRENT ID4
+28V MAIN POWER SUPPLY +18V MAIN POWER SUPPLY
-18V MAIN POWER SUPPLY
+9V MAIN POWER SUPPLY
+32V 1 SUBORDINATE POWER SUPPLY +32V 2 SUBORDINATE POWER SUPPLY
READINGS
MASTER CLOCK LOCK DETECT
+5V
Q
IN
I
IN
+32V
READ
ENABLE
DATA PLL
SW1
DCLK ASDI CS DATA
TO MEMORY
INTERFACE
RD
ENA
CLOCK
DIN
DO
LD
MODULATOR
÷
OUT 1
OUT 2
IN
MODULE 4442
IN OUT
+32V
(VA)
+32V
(VB)
2 SUBORDINATE
POWER SUPPLY
PA2
TEMP
UHF ATSC
AMPLIFIER
PA2
Σ
IN 1 IN 2
OUT
2 SUBORDINATE
POWER SUPPLY
MODULE 4402
SHUT DOWN 2
+28V
FIXO
+32V
(VA)
+32V
(VB)
TEMP
PA 2
PA2
TEMP
ALARM
ID3
READ
ID4
READ
+32V
READ
AC FAN
SHUT DOWN 2
RS232 TELESUPERVISION
CONTROL
UNIT