File name DEWOO ch.CP-520V DTX-21G2,21B4,21U7 .pdfP/N:TCP520VEF0
Service Manual
COLOR Television
CHASSIS : CP-520V
Model : DTX-21G2/21B4/21U7
Caution
: In this Manual, some parts can be changed for improving. their performance without notice in the parts list. So, if you need the latest parts information, please refer to PPL(Parts Price List)in Service Information Center.
Dec. 2006
CP-520V Service Manual
CONTENTS
DOCUMENT HISTORY 1 MAIN FEATURES 1.1 SPECIFICATIONS 1.1.1 GENERAL 1.1.2 EURO-SCART 1 (21 Pin) 1.1.3 EURO-SCART 2 (21 Pin) 1.2 CHANNEL/FREQUENCY TABLE 2 SAFETY INSTRUCTION 3 ALIGNMENT INSTRUCTIONS 3.1 MICROCONTROLLER CONFIGURATION : SERVICE MODE 3.2 SERVICE MODE NAVIGATION 3.3 MICROCONTROLLER CONFIGURATION : OPTION BITS 3.4 OPTION 1 3.5 OPTION 2 3.6 NVM DEFAULT SETTING 3.7 TV SET ALIGNMENT 3.7.1 G2 ALIGNMENT 3.7.2 WHITE BALANCE 3.7.3 FOCUS 3.7.4 VERTICAL GEOMETRY 3.7.5 HORIZONTAL PICTURE CENTRING 3.7.6 AGC 4 IC DESCRIPTION 4.1 UOC III SERIES 4.1.1 IC MARKING AND VERSION 4.1.2 BLOCK DIAGRAM 4.1.3 PINNING 4.1.4 FEATURES 4.2 LA42032 STEREO AUDIO AMPLI FIER 4.2.1 FEATURES 4.3 LA78040 VERTICAL AMPLIFIER 4.3.1 FEATURES 4.4 24WC16 - 16 KB EEPROM 4.5 STR - W6754 4.5.1 GENERAL DESCRIPTION 4.5.2 FEATURES 4.5.3 BLOCK DIAGRAM 4.5.4 PIN DESCRIPTION 4.5.5 CONTROL PART - ELECTRICAL CHARACTERISTICS 3 4 4 4 4 5 6 9 10 10 10 10 11 11 12 14 14 14 14 14 14 14 15 15 15 16 17 20 23 24 26 26 28 29 29 29 29 30 30
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CP-520V Service Manual
5 CIRCUIT DESCRIPTION 5.1 BLOCK DIAGRAM 5.2 FUNCTIONAL DESCRIPTION OF VIDEO PROCESSOR 5.2.1 Vision IF amplifier 5.2.2 QSS sound circuit 5.2.3 FM demodulator 5.2.4 Audio input selector and volume contro 5.2.4.1 STEREO AND AV STEREO VERSIONS 5.2.4.2 MONO VERSIONS 5.2.5 CVBS and Y/C input signal selection 5.2.5.1 ALL VERSIONS 5.2.6 Synchronisation circuit 5.2.7 Horizontal and vertical drive 5.2.8 Chroma, luminance and feature processing 5.2.9 Colour decoder 5.2.10 RGB output circuit 5.2.11 I2C-BUS USER INTERFACE DESCRIPTION 5.3 GENERAL DESCRIPTION OF THE TV SOUND OF SOUND PROCESSOR 5.3.1 Supported standards 5.4 FUNCTIONAL DESCRIPTION SOUND PROCESSOR 5.4.1 The UOC III TV Sound Concept 5.4.2 Functional Overview Of the digital controller sound part 5.4.3 Demodulator and decoder 6 SERVICE PARTS LIST 6.1 DTX-21G2FZP-SB 7 EXPLODED VIEW 7.1 DTX-21G2 7.2 DTX-21B4 7.3 DTX-21U7 8 PRINTED CIRCUIT BOARD 8.1 4859813693(OLD PCB) 8.2 4859816393(NEW PCB) 9 SCHEMATIC DIAGRAM 9.1 CP-520V
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CP-520V Service Manual DOCUMENT HISTORY VERSION DATE COMMENTS V1.46 07/07/06 Creation of document (Author JS KIM) for project CP520 50Hz TV.
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CP-520V Service Manual 1 1.1 MAIN FEATURES SPECIFICATIONS
1.1.1 GENERAL TV standard Colour system Sound system Power consumption PAL - SECAM B/G D/K, PAL I/I, SECAM L/L' Tuner PAL, SECAM AV PAL, SECAM, PAL 60, NTSC M, NTSC 4.43 NICAM B/G, I, D/K, L, FM 2Carrier B/G, D/K 59W
Sound Output Power Speaker Teletext system Aerial input Channel coverage Tuning syst |