VW-BN1PP / VW-BN1E / VW-BN1GK / 1 Safety Precaution 1.1. General Guidelines 1. IMPORTANT SAFETY NOTICE There are special components used in this equipment which are important for safety. These parts are marked by in the Schematic Diagrams, Circuit Board Layout, Exploded Views and Replacement Parts List. It is essential that these critical parts should be replaced with manufacturer’s specified parts to prevent X-RADIATION, shock fire, or other hazards.
VW-BN1PP / VW-BN1E / VW-BN1GK / 2 Warning 2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatic Sensitive (ES) Devices Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor “chip”...
VW-BN1PP / VW-BN1E / VW-BN1GK / 2.3. Service caution based on legal restrictions 2.3.1. General description about Lead Free Solder (PbF) The lead free solder has been used in the mounting process of all electrical components on the printed circuit boards used for this equipment in considering the globally environmental conservation.
VW-BN1PP / VW-BN1E / VW-BN1GK / 3 Service Navigation 3.1. Service Information This service manual contains technical information which will allow service personnel´s to understand and service this model. Please place orders using the parts list and not the drawing reference numbers.
VW-BN1PP / VW-BN1E / VW-BN1GK / 7 Disassembly and Assembly Instructions 7.1. Disassembly Flow Chart This flow chart indicates the disassembly steps the cabinet parts, P.C.B. and Mecha. Unit in order to access to be serviced. When reinstalling, perform the steps in the reverse order.
VW-BN1PP / VW-BN1E / VW-BN1GK / 8 Measurements and Adjustments 8.1. Service Positions 8.1.1. List of the extension cables Use the following extension cables when checking individual circuit boards. 8.1.2. Checking and repairing individual circuit boards. How to use extension cables.
VW-BN1PP / VW-BN1E / VW-BN1GK / 10 Schematic Diagrams 10.1. MAIN SCHEMATIC DIAGRAM IMPORTANT SAFETY NOTICE: NOTE: NOTE: For placing a purchase order of the parts, FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES, COMPONENTS IDENTIFIED BY THE SIGN HAVE SPECIAL CHARACTERISTICS IMPORTANT FOR SAFETY.
VW-BN1PP / VW-BN1E / VW-BN1GK / 10.2. SUB SCHEMATIC DIAGRAM NOTE: NOTE: For placing a purchase order of the parts, FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES, be sure to use the part number listed in the parts list.
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VW-BN1PP / VW-BN1E / VW-BN1GK / NOTE: MULTI-LAYER P.C.B. IMPORTANT SAFETY NOTICE: THIS P.C.B. IS Multi-Layer P.C.B. THIS CIRCUIT BOARD SHOWS COMPONENT LAYOUT-PATTERN COMPONENTS IDENTIFIED BY THE SIGN HAVE SPECIAL CHARACTERISTICS IMPORTANT FOR SAFETY. FOR COMPONENT SIDE AND FOIL SIDE. LAYOUT-PATTERNS ARE SINGLE PATTERN FOR EACH WHEN REPLACING ANY OF THESE COMPONENTS, USE ONLY THE SPECIFIED PARTS..
VW-BN1PP / VW-BN1E / VW-BN1GK / 11.2. SUB P.C.B. (LSEP8428A1) NOTE: MULTI-LAYER P.C.B. NOTE: THIS P.C.B. IS Multi-Layer P.C.B. THIS CIRCUIT BOARD SHOWS COMPONENT LAYOUT-PATTERN CIRCUIT BOARD LAYOUT SHOWS COMPONENTS INSTALLED FOR VARIOUS MODELS. FOR COMPONENT SIDE AND FOIL SIDE. LAYOUT-PATTERNS ARE SINGLE PATTERN FOR EACH FOR PROPER PARTS CONTENT FOR THE MODEL YOU ARE SERVICING, SIDE THAT MAKE EASY TO SIGHT THE COMPONENT LAYOUT.
VW-BN1PP / VW-BN1E / VW-BN1GK / 12 Appendix Infomation of Schematic Diagram 12.1. Voltage Chart Note) Circuit voltage and waveform described herein shall be regarded as reference information when probing defect point, because it may differ from an actual measuring value due to difference of Measurring instrument and its measuring condition and product itself.