Introduction; Product Safety Notice; Pcb-Terminal (3Dyc / Decoders) - Mitsubishi Electric VS-50111 Service Manual

MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
This service manual provides service instructions for the PTV Models listed below. Service personnel should read this
manual thoroughly before servicing these chassis.
V20A Chassis
VS-50111
VS-60111
This service manual includes:
1. Assembly and disassembly instructions for the front and rear cabinet components.
2. Servicing of the Lenticular Screen and Fresnel Lens.
3. Servicing printed circuit boards (PCBs).
4. CRT replacement procedure.
5. Electrical adjustments.
6. Chip parts replacement procedures.
7. Circuit path diagrams.
The parts list section of this service manual includes:
1. Cabinet and screen parts.
2. Electrical parts.
Schematic and block diagrams of the above listed models are included in this service manual for better under-
standing of the circuitry. PCB drawings are also included for easy location of parts and test points.
Many electrical and mechanical parts in television receivers have special safety related characteristics. These
characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be
obtained by using replacement components rated for higher voltage, wattage, etc.
Replacement parts which have special safety characteristics are identified in this service manual.
Electrical components having such features are identified by shading
type in the parts list of this service manual. The replacement for any safety part should be identical in value
and characteristics.

INTRODUCTION

V20C Chassis
WS-48311
WS-55311
WS-65311

PRODUCT SAFETY NOTICE

Page 5
V20C+ Chassis
WS-55411
WS-65411
WS-73411
on the schematic diagram and by bold