1
ENGLISH ............................................................................................................................................. 3
SAFETY ............................................................................................................................................ 3
SAFETY PRECAUTIONS ..............................................................................................................................3
CIRCUIT DESCRIPTION ................................................................................................................... 4
D8/A8 CHASSIS ALIGNMENT PROCEDURE ................................................................................................4
DIGITAL COMB FILTER – TOSHIBA TC9090AF. ......................................................................................... 13
SCAN VELOCITY MODULATION. ............................................................................................................... 13
DIGITAL DOUBLE SCAN CONVERSION UNIT (FEATURE BOX)................................................................. 13
INPUT PROCESSOR - PHILIPS TDA 9320. ................................................................................................. 14
PICTURE IMPROVEMENT - PHILIPS TDA 9178.......................................................................................... 15
TUNER........................................................................................................................................................ 15
RGB PROCESSOR - TDA 9330................................................................................................................... 15
SIGNAL PATH DESCRIPTION..................................................................................................................... 16
AUDIO CIRCUIT.......................................................................................................................................... 16
AUDIO OUTPUT.......................................................................................................................................... 17
DOLBY DECODER...................................................................................................................................... 17
DEFLECTION.............................................................................................................................................. 17
HIGH END FEATURE BOX.......................................................................................................................... 18
LOW END FEATURE BOX .......................................................................................................................... 18
MICROCONTROLLER SECTION ON THE A8/D8 CHASSIS ........................................................................ 19
POWERED CONSOLE ................................................................................................................................ 26
DIGITAL SECTION ...................................................................................................................................... 27
GENERAL BLOCK DIAGRAM...................................................................................................................... 28
COFDM FRONT-END PCB.......................................................................................................................... 29
MPEG DECODER AND AV/GRAPHICS PCB ............................................................................................... 37
CONNECTOR SPECIFICATION .................................................................................................................. 60
A8/D8 PSU.................................................................................................................................................. 66
DTI PSU...................................................................................................................................................... 67
SERVICING..................................................................................................................................... 69
SERVICE. ................................................................................................................................................... 69
SELF DIAGNOSTICS .................................................................................................................................. 71
DIAGNOSTIC INTERFACE.......................................................................................................................... 73
FRANÇAIS ......................................................................................................................................... 74
SÉCURITÉ ...................................................................................................................................... 74
CONSIGNES DE SECURITE ....................................................................................................................... 74
DESCRIPTION DU CIRCUIT ........................................................................................................... 75
PROCEDURE D'ALIGNEMANT DU COFFRET D8/A8 .................................................................................. 75
FILTRE-PEIGNE NUMÉRIQUE.................................................................................................................... 84
MODULATION DE LA VITESSE DE BALAYAGE.......................................................................................... 84
GROUPE DE CONVERSION NUMÉRIQUE À DOUBLE VISIONNEMENT (COFFRET DES FONCTIONS). ... 84
PROCESSEUR D'ENTRÉE – PHILIPS TDA 9320 ........................................................................................ 85
AMÉLIORATION DE L'IMAGE - PHILIPS TDA 9178 ..................................................................................... 86
TUNER........................................................................................................................................................ 86
PROCESSEUR RGB - TDA 9330................................................................................................................. 86
DESCRIPTION DE LA TRAJECTOIRE DES SIGNAUX ................................................................................ 87
CIRCUIT AUDIO.......................................................................................................................................... 87
SORTIE AUDIO........................................................................................................................................... 88
DÉCODEUR DOLBY ................................................................................................................................... 88
DEFLEXION ................................................................................................................................................ 89
CASE DE FONCTIONS EXTRÉMITÉ HAUTE .............................................................................................. 90
CASE FONCTIONS EXTRÉMITÉ BASSE .................................................................................................... 90
SECTION DU MICROCONTRÔLEUR DU CHÂSSIS A8/D8 .......................................................................... 91
CONSOLE D'ALIMENTATION ..................................................................................................................... 99
DESCRIPTION GÉNÉRALE ...................................................................................................................... 100
SCHÉMA SYNOPTIQUE ........................................................................................................................... 101
CIRCUIT IMPRIMÉ FRONTAL COFDM...................................................................................................... 102
CIRCUIT IMPRIMÉ DE DÉCODEUR MPEG ET AV/GRAPHIQUES ............................................................ 110
SPÉCIFICATION DES CONNECTEURS .................................................................................................... 132
ALIMENTATION A8/D8.............................................................................................................................. 139
ALIMENTATION DTI.................................................................................................................................. 140
ENTRETIEN COURANT ................................................................................................................ 142
SERVICE. ................................................................................................................................................. 142
AUTO-DIAGNOSTIC.................................................................................................................................. 146
Summary of Contents for C28W40TN
Page 29: ...28 GENERAL BLOCK DIAGRAM ...
Page 91: ...90 CASE DE FONCTIONS EXTRÉMITÉ HAUTE CASE FONCTIONS EXTRÉMITÉ BASSE ...
Page 102: ...101 SCHÉMA SYNOPTIQUE ...
Page 165: ...164 HÖHERE FEATURE BOX NIEDRIGE FEATURE BOX ...
Page 177: ...176 BLOCKSCHALTBILD ...
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Page 225: ...224 WAVEFORMS ...
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Page 238: ...237 MECHANICAL ...
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Page 299: ...Users Guide C28W40TN C32W40TN ...
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Page 355: ...Users Guide C28W35TN C32W35TN S C R E E N S C R E E N ...