Table of Contents Page General Section ... 1-2…1-12 General Notes ... 1-2 Service Notes ... 1-3 Technical Data ... 1-4 Safety Advices ... 1-5 Operating Hints DAVIO 55 T55-4201/5 TOP) ... 1-8 Service and Special Functions ... 1-10 Alignment... 2-3…2-4 Layout of the PCBs and Circuit Diagrams ... 3-1…3-14 Circuit Diagrams: Mains Section ... 3-1 Horizontal Deflection ... 3-1 Vertical Deflection ... 3-2 Main Circuit Diagram ... 3-9 CRT Board ... 3-13 AV Switch Board ... 3-14 AV Board ... 3-14 Option WEB ... 3-14 PCBs: Chassis Board ... 3-3 Oscillograms Chassis ... 3-5 CRT Panel ... 3-13 AV Switch Board ... 3-14 AV Board ... 3-14 Spare Parts Lists ... 4-1…4-3