Partie générale / General Section
CUC 7303 FR
1 - 2
GRUNDIG Service
F
Table of Contents
Page
General Section ................................. 1-1... 1-12
Module List ................................................................................... 1-3
Safety Advice ............................................................................... 1-4
Hints to the Components ............................................................. 1-4
Service Note ................................................................................
Circuit Diagram Symbols ............................................................. 1-5
Tables of Norms and Channels ...................................................
Service Instructions (P 37-070) .................................................... 1-8
Special and Service Functions ................................................... 1-11
Block Circuit Diagram ................................................................ 1-12
Descriptions ...................................... 2-7... 2-12
1. Power Supply ........................................................................... 2-7
2. System Control ........................................................................ 2-8
3.TV Signal Processor TDA8362A ............................................... 2-9
3.1 Overview ......................................................................... 2-9
3.2 IF ..................................................................................... 2-9
3.3 CCVS-Signal ................................................................... 2-9
3.4 External CCVS Signal ..................................................... 2-9
3.5 Sound IF ........................................................................ 2-10
3.6 Luminance and Chrominance Signal ............................ 2-10
3.7 SECAM Signal Path
and Automatic PAL/SECAM Switching ......................... 2-10
1-Phase Control .......................................................... 2-11
2-Phase Control .......................................................... 2-11
Adjustments ................................................. 3-2
Layout of the PCBs
and Circuit Diagrams ........................ 4-1... 4-18
Chassis Board .............................................................................. 4-1
Oscillograms ................................................................................ 4-7
General Circuit Diagram .............................................................. 4-9
CRT Panel 29305-022.16 .......................................................... 4-14
CRT Panel 29305-022.14/.15 .................................................... 4-16
Processing Board ....................................................................... 4-18
Spare Parts List ................................... 5-1... 5-8
GB
Sommaire
Page
Partie générale .................................. 1-1... 1-12
Appareils de mesure / Moyens de maintenance .......................... 1-3
Caractéristiques techniques ........................................................ .1-3
Composition des appareils ........................................................... 1-3
Informations sur la sécurité .......................................................... 1-4
Observaciones sobre los componentes ....................................... 1-4
Information pour la maintenance .................................................
Symboles schéma ........................................................................ 1-5
Tableaux des normes et des canaux ........................................... 1-6
Eléments de commande (P 37-070) ............................................ 1-8
Fonctions de service et fonctions spéciales ............................... 1-10
Schéma synoptique ................................................................... 1-12
Description des circuits ...................... 2-1... 2-6
1. Le C.I. Alimentation .................................................................. 2-1
2. Le système de commande ....................................................... 2-2
3. Le processeur de signal TV TDA8362A ................................... 2-3
3.1 Généralité ........................................................................ 2-3
3.2 Circuit FI .......................................................................... 2-3
3.3 Le signal vidéo composite FBAS .................................... 2-3
3.4 Le signal vidéo composite FBAS externe ....................... 2-3
3.5 Le signal FI audio ............................................................ 2-4
3.6 Les signaux de luminance et de chrominance ................ 2-4
3.7 Le signal SECAM et la commutation automatique
PAL-SECAM ................................................................... 2-4
1 ............................................... 2-5
2 ............................................... 2-5
Prescriptions d'alignement ......................... 3-1
Circuits impriméset
schémas électriques .......................... 4-1... 4-18
C.I. Principal ................................................................................. 4-1
Oscillogrammes ........................................................................... 4-7
Schéma synoptique général ........................................................ 4-9
C.I. Tube 29305-022.16 ............................................................ 4-14
C.I. Tube 29305-022.14/.15 ...................................................... 4-16
C.I. du microprocesseur ............................................................. 4-18