Схема телевизора Other GRUNDIG P37-841 FR, P37-846 FR TEXT, P45-846 FR TEXT, T51-846 FR TEXT, T55-841 FR, T55-846 FR TEXT, CHASSIS CUC 7303 FR

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Partie g?n?rale / General Section
CUC 7303 FR
GRUNDIG Service
The regulations and safety instructions shall bevalid as provided by the "Safety" Service Manual,part number 72010-800.00, as well as therespective national deviations.
Table of Contents
General Section ................................. 1-1... 1-12
Test Equipment / Jigs .................................................................. 1-3Technical Data ............................................................................. 1-3Module List ................................................................................... 1-3Safety Advice ............................................................................... 1-4Hints to the Components ............................................................. 1-4Service Note ................................................................................ 1-4Circuit Diagram Symbols ............................................................. 1-5Tables of Norms and Channels ................................................... 1-6Service Instructions (P 37-070) .................................................... 1-8Special and Service Functions ................................................... 1-11Block Circuit Diagram ................................................................ 1-12
Descriptions ...................................... 2-7... 2-12
1. Power Supply ........................................................................... 2-72. System Control ........................................................................ 2-83.TV Signal Processor TDA8362A ............................................... 2-9
Overview ......................................................................... 2-9
IF ..................................................................................... 2-9
CCVS-Signal ................................................................... 2-9
External CCVS Signal ..................................................... 2-9
Sound IF ........................................................................ 2-10
Luminance and Chrominance Signal ............................ 2-10
SECAM Signal Pathand Automatic PAL/SECAM Switching ......................... 2-10
RGB Signal Path ........................................................... 2-11
Generation of the Horizontal and Vertical Sync Signals 2-11
3.10 Line Oscillator ................................................................ 2-113.11
1-Phase Control .......................................................... 2-11
2-Phase Control .......................................................... 2-11
3.13. The Super Sandcastle SSC .......................................... 2-123.14 Setting of the Cut-Off Voltage ....................................... 2-123.15 HDR Output Stage ........................................................ 2-123.16 Field Deflection Stage ................................................... 2-123.17 Non-Interlace Compensation with Teletext ................... 2-123.18 Coincidence .................................................................. 2-12
Adjustments ................................................. 3-2
Layout of the PCBsand Circuit Diagrams ........................ 4-1... 4-18
Chassis Board .............................................................................. 4-1Oscillograms ................................................................................ 4-7General Circuit Diagram .............................................................. 4-9CRT Panel 29305-022.16 .......................................................... 4-14CRT Panel 29305-022.14/.15 .................................................... 4-16Processing Board ....................................................................... 4-18
Spare Parts List ................................... 5-1... 5-8
Partie g?n?rale .................................. 1-1... 1-12
Appareils de mesure / Moyens de maintenance .......................... 1-3Caract?ristiques techniques ........................................................ .1-3Composition des appareils ........................................................... 1-3Informations sur la s?curit? .......................................................... 1-4Observaciones sobre los componentes ....................................... 1-4Information pour la maintenance ................................................. 1-4Symboles sch?ma ........................................................................ 1-5Tableaux des normes et des canaux ........................................... 1-6El?ments de commande (P 37-070) ............................................ 1-8Fonctions de service et fonctions sp?ciales ............................... 1-10Sch?ma synoptique ................................................................... 1-12
Description des circuits ...................... 2-1... 2-6
1. Le C.I. Alimentation .................................................................. 2-12. Le syst?me de commande ....................................................... 2-23. Le processeur de signal TV TDA8362A ................................... 2-3
G?n?ralit? ........................................................................ 2-3
Circuit FI .......................................................................... 2-3
Le signal vid?o composite FBAS .................................... 2-3
Le signal vid?o composite FBAS externe ....................... 2-3
Le signal FI audio ............................................................ 2-4
Les signaux de luminance et de chrominance ................ 2-4
Le signal SECAM et la commutation automatiquePAL-SECAM ................................................................... 2-4
Le cheminement du signal RVB ...................................... 2-5
G?n?ration des signaux de synchro horizontale et verticale .. 2-5
3.10 L'oscillateur ligne ............................................................. 2-53.11 Le circuit de r?gulation
1 ............................................... 2-5
3.12 Le circuit de r?gulation
2 ............................................... 2-5
3.13 Le circuit de protection Super Sandcastle ....................... 2-63.14 Le r?glage de courant de Cut-Off .................................... 2-63.15 L'?tage de puissance horizontale HDR ........................... 2-63.16 L'?tage de d?viation verticale .......................................... 2-63.17 Compensation de non-entrelacement en t?l?texte (Option) .. 2-63.18 Le circuit de co?ncidence ................................................. 2-6
Prescriptions d'alignement ......................... 3-1
Circuits imprim?setsch?mas ?lectriques .......................... 4-1... 4-18
C.I. Principal ................................................................................. 4-1Oscillogrammes ........................................................................... 4-7Sch?ma synoptique g?n?ral ........................................................ 4-9C.I. Tube 29305-022.16 ............................................................ 4-14C.I. Tube 29305-022.14/.15 ...................................................... 4-16C.I. du microprocesseur ............................................................. 4-18
Liste de pi?ces d?tach?es .................. 5-1... 5-8
II y a lieu d'observer les recommandations et lesprescriptions de s?curit? de I'Instruction de Ser-vice "S?curit?" R?f. N
72010-800.00 ainsi que
les prescriptions sp?cifiques ? chaque pays!