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CP-520/520A/520F Service Manual
DTV R&D Europe
24
· 5 PWM (6-bits) outputs for analogue control functions
· Remote Control Pre-processor (RCP)
· Universal Asynchronous Receiver Transmitter (UART)
Data Capture
· Text memory up to 10 pages
· Inventory of transmitted Teletext pages stored in the Transmitted Page Table (TPT) and Subtitle
Page Table (SPT)
· Data Capture for US Closed Caption
· Data Capture for 525/625 line WST, VPS (PDC system A) and Wide Screen Signalling (WSS)
bit decoding
· Automatic selection between 525 WST/625 WST
· Automatic selection between 625 WST/VPS on line 16 of VBI
· Real-time capture and decoding for WST Teletext in Hardware, to enable optimized m-
processor throughput
· Automatic detection of FASTEXT transmission
· Real-time packet 26 engine in Hardware for processing accented, G2 and G3 characters
· Signal quality detector for video and WST/VPS data types
· Comprehensive teletext language coverage
· Vertical Blanking Interval (VBI) data capture of WST data
Display
· Teletext and Enhanced OSD modes
· Features of level 1.5 WST and US Close Caption
· 50Hz/60Hz display timing modes
· Two page operation for 16:9 screens
· Serial and Parallel Display Attributes
· Single/Double/Quadruple Width and Height for characters
· Smoothing capability of both Double Size, Double Width & Double Height characters
· Scrolling of display region
· Variable flash rate controlled by software
· Soft colours using CLUT with 4096 colour palette
· Globally selectable scan lines per row (9/10/13/16/) and character matrix [12x9, 12x10, 12x13,
12x16, 16x18, (VxH)]
· Fringing (Shadow) selectable from N-S-E-W direction
· Fringe colour selectable
· Contrast reduction of defined area
· Cursor
· Special Graphics Characters with two planes, allowing four colours per character
· 64 software redefinable On-Screen display characters
· 4 WST Character sets (G0/G2) in single device (e.g. Latin, Cyrillic, Greek, Arabic)
· G1 Mosaic graphics, Limited G3 Line drawing characters
· WST Character sets and Closed Caption Character set in single device
· SVM for Text
4.2 TDA8946J STEREO AUDIO AMPLIFIER
The TDA 8946J is a dual-channel audio power amplifier with an output power of 2 x 15 W at an 8
Ω load and a 18 V supply. The circuit contains two Bridges Tied Load (BTL) amplifiers with an