SAT-A55P/B55P
— 8 —
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
1
2
3
4
1
2
4
3
1
2
3
1
2
3
4
J1
S600
T510
J500
CN550
CN300
POWER SW
MIDCOM
D-SUB
4P
S-VIDEO
SCCLK
SCRST
SELECT
+5V
DERROR
DATA 0-7
DCLK
TI_SCL
TI_SDA
SCIO
SCPW
+5V
GND
GND
SW1
NC
UP
RIGHT
DOWN
MENU
LEFT
EXIT
GND
GND
AUDIO DAC
SDRAM
EEPROM
IC103
ASCLK
LRCLK
PCMCLK
PCMDATA
PACCLK
GND
AOUTL
AOUTR
ASCLK
PCMDATA
PCMCLK
EXTADDR
EXTDATA
RF
SCIO
EXTDATA
0-15
EXTADDR
0-24
SDATA
0-15
SADDR
0-11
SCCLK
PCMCLK
ASCLK
LRCLK
5VDATA8-15
0-15
EXTDATA
SCRST
SW1
0-24
EXTADDR
RF IN
+ 5 V
+ 5 V
RF_REMOTE
IR BLASTER
IC 520
RXA
TXA2
TXA1
MODEM IC
MEMORY BLOCK
FLASH ROM A
FLASH ROM B
IC106
TXTI
RXTI
TI_SCL
TI_SDA
SADDR
0-11
SDATA
0-15
0-15
EXTDATA
EXTADDR
0-24
IC1350
XHO
OPTOMOS
RELAY
TO SMART CARD
9P
CN200
CN201
9P
TO FRONT PANEL
MINI JACK
1P
IC120
5VDATA8-15
0,1,21,,24
0
DRAM IC101
IC100
SW REG.
TRANSFORM
D R A I N
C O N T R O L
S O U R C E
AC IN
AC-RECT
FEED BACK
SHUNT REG.
L N B - I N
TI_SDA
TI_SCL
DCLK
PACCLK
DERROR
DATA 0-7
+3.3V
+32V
B2+5V
B1+5V
BOOSTER
+5V
TU201 DSS TUNER
SAT IN
+12V
IC260
+9V
AMP
IC801(1/2)
AMP
AMP
IC802(1/2)
IC802(2/2)
UARTDO2
UARTDI2
UARTDI1
UARTDO1
TXDA
RXDA
COUT
YOUT
VID IN
AUD IN
AMP
IC300
Q550
SW
Q551
INV
YOUT
COUT
AMP
IC301
V1
V2
Q301,Q302,Q303,Q304
BUFFERS
0-15
EXTDATA
AC3ADDR
0-1
AC3ADDR
0-1
LRCLK
Q800
BUFF
AMP
IC801(2/2)
L1
L2
R1
R2
IC700
IC623
IC624
T601
D601
T620
+32V REG
Q630
J151
+24V
-5V REG
+9V REG
+32V
Q650
OCP
-5V
+5V
AMP
Q651,652
SCPW REG.
INV
Q654
INV
Q655
PCMDATA
SMVCCDET
Q290
SW
IC290
DC-DC CONV.
Q204
OCP
SMVCCDET
LNBVAL
Q203
SW
LNBPWR
LNBVAL
LNBPWR
LNBPOL
LNBFB
Q202
SW
Q291
SW
LNBPOL
LNBFB
AMP
Q240,241
IC240
AMP
LNBLED
TO
RESET IC
IC 171
TO IC206
TO CN200
TU 201
CN120
CN601
IC622
IC640
IC500
J800
VIDEO OUT
AUDIO OUT
J800
RF300
PWR SUPPLY, TUNER, TPT/MODEM
MICRO CONTROLLER/ASIC
MPEG A/V, NTSC, AC3 AUDIO
XMT958
CN920
DIGITAL OUT
VIN
OPTICAL
BUFF
Q160
Q802
MUTE
Q801
MUTE
XMUTE
SAT-A55P ONLY
SAT-A55P ONLY
SAT-A55P ONLY
LNBFB
Q653
XWR/XRD
XWR/XRD
RESET
RESET
SW
Q101
XTVDSS
CONTROL
SW
Q522
RST
SW_E
IPK
XCOMP
ASIC
IC150
IC110
TRANSPORT MICRO
LOGIC IC
IC160
IC910
AUDIO PROCESSOR
COMPARATOR
IC206
IC800
9-965-914-01<SAT-A55P/B55P> BD 1OF2
S C P W
VCR_CLK/VFD_CLK
VCR_DATA/VFD_SERIAL_OUT
XVCR_IRQ/VFD_LATCH
POWER_SW
UP_SW
SELECT_SW
DOWN_SW
RIGHT_SW
MENU_SW
LEFT_SW
EXIT_SW
RINT
RDATA
RCLK
SW
INV
S W R E G U L A T O R
Q521
Q520
REM
POWER_LED
THR_LED
TVDSS_LED
XRST
XRESET
XRST
XRST
XRST
4-3. DIAGRAMS
BLOCK DIAGRAM (1 OF 2)
Summary of Contents for DirecTV SAN-18D3
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