Specifications

54
TPT1.0A LA
8.2 Circuit Description
8. Circuit Descriptions and IC Data Sheets
Description of Scaler board
There are video processing and some audio function in scaler board. The 37/42TA1800 uses Trident SVP-PX66 as Scaler engine, which has
embedded Analog D-SUB, digital HDMI receiver, scaling input signal to panel OSD mapping and simple 3D de-interlacer. The extra DDR is to
accomplish video frame rate conversion and to provide OSD and de-interlacer with enough memory.
The external CPU (M30620SPGP) can provide control signals such as backlight control, RC (Remote Control), detect keypad input, IIC I/O
communication, TV tuning control, sound control and power control .
Embedded Video decoder is used to execute all video signal processing except HDTV. HDTV is go through embedded ADC converter. 3D comb
and 3D de-interlacer are included in scaler. Scaler can decode CC, TT, V-chip data to display.
In west Europe and AP model, Tele-text (TT) function is necessary, but China Model is no need. In NAFTA model Close-Caption (CC) function is
necessary.
One audio decoder MSP34XXG is used for TV sound processing, and output to TPA3800D2 . Post D-class amplifier is in scaler board.
Fig 1 37/42TA1800 block diagram
Description of TV system
A TV tuner with remote control will be mandatory for AP, China, West Europe and NAFTA production models.
Tuner and sound decoder deviation:
WE NAFTA AP China
Tuner FQ1216ME/I H-5 FQ1236/F H-5 FQ1216PN/I H-5 FQ1256/I H-5
94TPASEALL 3P 94TNTSC MA 1P 94TNPALALL P1 94T PALBDI 1P
MSP
MSP3450G-QI-B8V3 MSP3440G-QI-B8V3 MSP3410G-QI-B8V3 MSP3410G-QI-B8V3
56G 593504 56G 593 7 56G 593901 56G 593901