Partie générale / General Section
II y a lieu d'observer les recommandations et les
prescriptions de sécurité de I'Instruction de Ser-
vice "Sécurité" Réf. N° 72010-800.00 ainsi que
les prescriptions spécifiques à chaque pays!
F
Sommaire
Symboles schéma ........................................................................ 1-5
Tableaux des normes et des canaux ........................................... 1-6
Schéma synoptique ................................................................... 1-12
3.1
Généralité ........................................................................ 2-3
3.2
Circuit FI .......................................................................... 2-3
3.3
3.4
3.5
3.6
3.7
PAL-SECAM ................................................................... 2-4
3.8
3.9
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
Liste de pièces détachées .................. 5-1... 5-8
1 - 2
The regulations and safety instructions shall be
valid as provided by the "Safety" Service Manual,
part number 72010-800.00, as well as the
respective national deviations.
GB
Table of Contents
Page
General Section ................................. 1-1... 1-12
Test Equipment / Jigs .................................................................. 1-3
Technical Data ............................................................................. 1-3
Module List ................................................................................... 1-3
Safety Advice ............................................................................... 1-4
Hints to the Components ............................................................. 1-4
Service Note ................................................................................ 1-4
Circuit Diagram Symbols ............................................................. 1-5
Tables of Norms and Channels ................................................... 1-6
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
3.1
Overview ......................................................................... 2-9
3.2
IF ..................................................................................... 2-9
3.3
CCVS-Signal ................................................................... 2-9
3.4
3.5
Sound IF ........................................................................ 2-10
3.6
3.7
3.8
RGB Signal Path ........................................................... 2-11
3.9
3.18 Coincidence .................................................................. 2-12
Adjustments ................................................. 3-2
Layout of the PCBs
and Circuit Diagrams ........................ 4-1... 4-18
Chassis Board .............................................................................. 4-1
Oscillograms ................................................................................ 4-7
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
CUC 7303 FR
Page
GRUNDIG Service