This service manual of the old video cassette recorder VT-LC50EM is very good readable even the tiniest numbers (i.e. IC-pins). The circuits are very clear. Many details of the schematic are very good described but in GERMAN language. Many schematic details - but complete at all. Common background information of several details are enclosed and physical knowledge of the TFT liquid crystal display for example. The manual lacks PCB drawings. If you understand german I would recommend this manual for you.
Text excerpt from page 4 (click to view)
Manual Structure
Purpose of this manual
This manual is the maintenance manual for Camcorder Interface Box VA-DN1.
Contents
The followings are summaries of the each section for understanding the manual. Section 1 Service Overview Describes information about connection for service and connector input/output signals. Section 2 Spare Parts Describes parts list, exploded views and supplied accessories list used in the unit. Section3 Semiconductor Pin Assignments Describes function diagrams and pin names of semiconductor used in the unit. Section 4 Diagrams and Board Layouts Describes overall block diagram, schematic diagram and board layouts.
Relative Manual
Besides this �Maintenance Manual�, the following manual is available for this unit. Operation Manual (Supplied with this unit) This manual is necessary for application and operation of this unit.