Samsung LNT4669F Training Manual page 53

Ⅱ. Inside of Peony2
SCALER: SVP-LX64
NTSC/PAL/SECAM Video Decoder
The integrated TCD3 NTSC/PAL/SECAM 3D comb video decoder can
take an analog TV signal and convert it to digital format. The analog
TV signal can be in the composite, S-Video, or component format.
The two internal analog switches can be programmed to select
different input signal formats. The selected analog TV signal is sent
to Automatic Gain Control (AGC) and then to a 10-bit ADC. The input
sampled by ADC's can be NTSC, PAL, SECAM, and all progressive
modes. The input signal can have Macrovision, which the decoder will
detect and compensate for.
It also supports WSS input detection. The non-decoded signal goes
to a programmable 3D comb filter to maintain the vertical
chrominance resolution during luminance (Y) and chrominance (C)
separation.