Technical data

Circuit Description
90
Magnavox LCD TV
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2. System block diagram
1. General Description
This LCD-TV-F1 support PC analog input up to 1280X768 75Hz mode for WXGA panel, and support TV (RF), YC, CVBS, and SCART. Also for
Y Pb Pr signal input from SDTV to HDTV (480I, 480P, 720P, 1080i 60Hz and 576I, 576P, 720P, 1080I 50H z).
This LCD - TV use MST51510 as Scaler engine, which has embedded Analog D-sub, digital DVI decoder, scaling input signal to panel OSD
mapping and simple 3D de-interlacer. The extra SDRAM is to accomplish video frame rate conversion and PIP function.
The external CPU can be used to back light control, RC, keypad input, IIC I/O communication and. TV tuning control, sound control, and
SAA7119A video decoder.
Video decoder SAA7119 is used for TV video processing and convert it with CCIR 601/16bits or 656/8bits digital format and send to Scaler for
de-interlace process, and also CC,V-chip data decode.
One audio decoder MSP34XXG is used for TV sound processing, and output to post amplifier and SCART out.
An option function in WE model Telttext display . Data decode is done by SAA5360, output RGB/FB is to video decoder input for text
overlapping. In non-text model, this chip is N.C.
SAA7119
TEXT
SAA5360
/1
1Mx16
MCU
128K
AD VIDEO
MST515X2
DDC
24C02
EEPROM
24C32
SCL/SDA
DDC_SDA/
DDC_SCL
(ISP)
LVDS / TTL
AD
IF
MM Tuner
PC_input
AV_CVBS_SC
SC_R/G/B or YPbPr
Y/C
Tuner_CVBS
TEXT
FB/FR/FG
8Bits ITU656
YPbPr( HD )
MSP34X5
PC_AUD_in
YPbPr_AUD_in
CVBS_AUD_in
SC_AUD_in
2
nd
_IF
SATPA
3005D2
SC_AUD_OUT
SPEAKER
PANEL
1Mx1
6
M
U
X
S
S
A
A
A
A
7
7
1
1
1
1
9
9
+
+
M
M
S
S
T
T
AV_CVBS_RCA
Scaler choice:
If the panel interface is TTL type: 20 use MST51502L.
If the panel interface is LVDS type: 14 15 17 use MST51512L
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