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LEFT
TERRESTRIAL INPUT
CABLE INPUT
RIGHT
CATV Input Connector
B.
Connecting to your coaxial cable from local TV station.
Tuner TUV1236D receive the signal come from CATV signal Selects desired channel and
demodulate image composite signal (signal mark T1CVBS) by pin 14 of Tuner output to U19 PW328
VDC decoder via C224 and audio SIF signal (signal mark T1SND) by pin 15 of Tuner output to U29
MSP4450G via C396 for demodulating MTS/SAP.
MPEG Processor PWM2030:
When MPEG Transport Stream data input U29 PWM2030 internal decoder Separates MPEG video and
AC3 digital audio .The digital video output from PWM2030 Digital Video Signal Output port (19 Pins) to
U18 PW328 digital input port (port 1) . The digital audio output via I2S bus (MPEG_CL, MPEG_WS,
I2S_DI1) to the externally connected DA converter( U27 MSP4440K) and via SPDIF to optical(P5) &
Coaxial(P4) . Each of these functions was described in more detail in the sections that follow.
Digital Audio
P{9}
MPEG_WS
MPEG_CL
P{9}
MPEG_DI1
P{9}
P{12}
ViewSonic Corporation
PHILIPS SEM
TUNER NIM MODULE
(40 PINS)
Signal output
PWSPDIF
U1
TUV1236D/FH
T12NDIF
R9
R12
75
R359
100_NC
R360
100_NC
R361
100_NC
1
Small
TP39
1
Small
TP40
1
Small
TP42
I2S2WS0
R293
100
I2S2CK0
R294
100
I2S2SD0
R295
100
R362
100
12
Confidential - Do Not Copy
TS0DATA7
TS0DATA6
TS0DATA5
TS0DATA4
TS0DATA[7:0]
TS0DATA3
TS0DATA2
TS0DATA1
TS0DATA0
TS0CLK
P{17}
TS0VALID
P{17}
TS0SYNC
P{17}
TS0ERR
P{17}
0
T1SND
T1CVBS
U29E PWM2030
B9
AOSCKO
SMIRQ
A9
AOSCKI
SMCLK0
SMDATA0
B13
I2S0WSI
SMCLK1
C13
I2S0CKI
SMDATA1
D13
I2S0SDI
A12
I2S1WSI
SIOCLK0
B12
I2S1CKI
SIOCLK1
C12
I2S1SDI
RXD0
D12
I2S2WSI
TXD0
B11
I2S2CKI
RTS0
C11
I2S2SDI
CTS0
A10
I2SWSO
RXD1
B10
I2SCKO
TXD1
C10
I2SSDO
D10
SPDIFO
N4261w-1M
P{17}
P{12}
P{8}
AD1
AB4
AC1
AC2
AC3
Y3
AA1
AA2
AA3
AA4
AB1
AB2
AB3
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