Daewoo DTK-28 Series, Service Manual, Page: 3 / 71

CP-850/F Service Manual
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4.4.1.2 DSP-Section (Audio Baseband Processing) 32
4.4.1.3 Analogue Section 32
4.4.1.4 NICAM & FM/AM-Mono 32
4.4.1.5 German 2-Carrier System (DUAL FM System) 32
4.5 TDA4470 - MULTISTANDARD VIDEO-IF AND QUASI PARALLEL SOUND PROCESSOR 35
4.5.1 DESCRIPTION 35
4.5.2 FEATURES 35
4.5.3 PINNING 35
4.5.4 BLOCK DIAGRAM 36
4.6 TDA894XJ STEREO AUDIO AMPLIFIER 37
4.6.1 FEATURES 37
4.7 TDA835XJ VERTICAL AMPLIFIER 38
4.7.1 TDA8353J 38
4.8 TDA6108JF 40
4.9 24C16 - 16 KB EEPROM 41
4.10 STR - W6754 42
4.10.1 GENERAL DESCRIPTION 42
4.10.2 FEATURES 42
4.10.3 BLOCK DIAGRAM 42
4.10.4 ELECTRICAL CHARACTERISTICS 43
5 CP-850/F CHASSIS DESCRIPTION 45
5.1 BLOCK DIAGRAM 45
5.2 IF SECTION 46
5.2.1 BLOCK DIAGRAM 46
5.2.2 VISION IF AMPLIFIER 47
5.2.3 TUNER-AND VIF-AGC 47
5.2.4 FPLL, VCO AND AFC 47
5.2.5 VIDEO DEMODULATION AND AMPLIFIER 48
5.2.6 SOUND IF AMPLIFIER AND SIF-AGC 48
5.2.7 QUASI-PARALLEL-SOUND (QPS) MIXER 48
5.2.8 STANDARD SWITCH 48
5.2.9 L SWITCH 48
5.2.10 INTERNAL VOLTAGE STABILISER 48
5.3 VIDEO / RGB
5.3.1 FRONT END 48
5.3.1.1 CVBS Front-End 48
5.3.1.2 Input Selector 49
5.3.1.3 Signal Levels And Gain Control 49
5.3.1.4 Synchronization 49
5.3.1.5 Chroma Decoder 49
5.3.1.6 Luminance Processing 49