RCA RCA BD20TF10 F19426 F19436 F20TF10 TVD809 Video block [SM] free download

File name RCA_BD20TF10_F19426_F19436_F20TF10_TVD809_Video_block_[SM].pdf

I2C2 Tuner ANT Clk Dat 11 10 OSD IF from SysCon Dat I2C2 1/2 Sound/Pix IF IG401 Clk II60 Rear (CV) Video 17 4 2 15 16 17 To Video (CV) CRT 6 7 Y Video Video/ 19 R Input Y-Out Deflection 20 C 5 17 43 Processing G Switch C-Out 21 B (CV) Front 10 16 45 IV01 Video IV02 Video (CV) Dat 28 15 18 I2C2 Y-In C-In Clk 27 CC Video 20 11 to SysCon Chroma Luma IG401 Buff/Filter Buff/Filter TV523 TV522/526 TX809 Video Switching/Processing Block Diagram Video Switching & Processing The Video Switching and Processing circuitry in the TX809 includes the Video Input Switch IV02, the Video/Deflection Processing IC IV01, the Sound/Pix IF IC II60 and the tuner. The video switch IV02, video/deflection IC IV01 processor and the sound/pix IC II60 are controlled via the System Control IG401. The CC Video (Closed Caption) is output from pin 15 of switch IV02 and sent to the system control (IG401) for decoding. Transistors TV522, TV523 and TV526 are used to separate the composite video signals into separate luma (Y) and chroma (C) signals. The composite video (CV) from the Sound/Pix IF (II60) and the front and rear input jacks are first routed through IV02 and output at pin 18. The composite video is applied to chroma and luma filter circuits for separation. The separated Y & C are then input back into IV01 at pins 11 and 20. The Y/C (S- Video) input is routed directly through switch IV02 for final processing. The selected video