BVF-55
BVF-55CE
ELECTRONIC VIEWFINDER
MAINTENANCE MANUAL
2nd Edition
Serial No. 15001 and Higher (UC)
Serial No. 35001 and Higher (J)
Serial No. 45001 and Higher (CE)
! WARNING
This manual is intended for qualified service personnel only.
To reduce the risk of electric shock, fire or injury, do not perform any servicing other than that
contained in the operating instructions unless you are qualified to do so. Refer all servicing to
qualified service personnel.
! WARNUNG
Die Anleitung ist nur für qualifiziertes Fachpersonal bestimmt.
Alle Wartungsarbeiten dürfen nur von qualifiziertem Fachpersonal ausgeführt werden. Um die
Gefahr eines elektrischen Schlages, Feuergefahr und Verletzungen zu vermeiden, sind bei
Wartungsarbeiten strikt die Angaben in der Anleitung zu befolgen. Andere als die angegeben
Wartungsarbeiten dürfen nur von Personen ausgeführt werden, die eine spezielle Befähigung
dazu besitzen.
! AVERTISSEMENT
Ce manual est destiné uniquement aux personnes compétentes en charge de l'entretien. Afin
de réduire les risques de décharge électrique, d'incendie ou de blessure n'effectuer que les
réparations indiquées dans le mode d'emploi à moins d'être qualifié pour en effectuer d'autres.
Pour toute réparation faire appel à une personne compétente uniquement.
X-RAY RADIATION WARNING
Be sure that parts replacement in the high voltage block
and adjustments made to the high voltage circuits are
carried out precisely in accordance with the procedures
given in this manual.
1 (E)
BVF-55/55CE
Table of Contents
Manual Structure
Purpose of this manual ........................................................................................ 3 (E)
Contents ............................................................................................................... 3 (E)
Relative manual ................................................................................................... 3 (E)
1. Installation
1-1.
Supplied Accessories ............................................................................ 1-1 (E)
1-2.
Connector/Cable .................................................................................... 1-1 (E)
1-2-1.
Connector Input/Output Signals ........................................... 1-1 (E)
1-2-2.
Connector ............................................................................. 1-2 (E)
2. Service Overview
2-1.
Removal of Cabinet ............................................................................... 2-1 (E)
2-1-1.
Removal of Hood Assembly and Tilt Table Assembly ....... 2-1 (E)
2-1-2.
Removal of Cover Assembly and VR Box Assembly ......... 2-2 (E)
2-2.
Replacement of Main Parts ................................................................... 2-3 (E)
2-2-1.
Replacement of Deflection Yoke ......................................... 2-3 (E)
2-2-2.
Replacement of CRT ............................................................ 2-3 (E)
2-3.
Circuit Descriptions .............................................................................. 2-4 (E)
2-4.
Precautions on Servicing ....................................................................... 2-6 (E)
2-4-1.
Notes on Spare Parts ............................................................ 2-6 (E)
2-4-2.
Precautions on Maintenance ................................................ 2-6 (E)
2-4-3.
Trouble Shooting .................................................................. 2-7 (E)
2-4-4.
Modification of VF-42 ......................................................... 2-7 (E)
2-4-5.
Modification of VF-45 ......................................................... 2-7 (E)
3. Electrical Alignment
3-1.
Preparation ............................................................................................ 3-1 (E)
3-1-1.
Equipment Required ............................................................. 3-1 (E)
3-1-2.
Example of Connection ........................................................ 3-2 (E)
3-1-3.
Note on Adjustment ............................................................. 3-3 (E)
3-1-4.
Initial Setting ........................................................................ 3-3 (E)
3-2.
Adjustment ............................................................................................ 3-4 (E)
3-2-1.
Power Supply Adjustment .................................................... 3-4 (E)
3-2-2.
H. OSC. Frequency Adjustment ........................................... 3-4 (E)
3-2-3.
V. OSC. Frequency Adjustment ........................................... 3-4 (E)
3-2-4.
High Voltage Adjustment .................................................... 3-5 (E)
2 (E)
BVF-55/55CE
3-2-5.
Deflection Yoke Tilt Adjustment ......................................... 3-5 (E)
3-2-6.
Centering Adjustment .......................................................... 3-6 (E)
3-2-7.
Screen Size Adjustment ....................................................... 3-6 (E)
3-2-8.
Linearity Adjustment ........................................................... 3-7 (E)
3-2-9.
Brightness Adjustment ......................................................... 3-7 (E)
3-2-10. Focus Adjustment ................................................................. 3-8 (E)
3-2-11. Safety Zone Adjustment ....................................................... 3-8 (E)
3-2-12. Center Marker Adjustment ................................................... 3-9 (E)
3-2-13. Peaking Adjustment ............................................................. 3-9 (E)
4. Spare Parts
4-1.
Exploded View ............................................................................................ 4-2
Overall Block ............................................................................................ 4-2
4-2.
Electrical Parts List ..................................................................................... 4-4
5. Semiconductor Pin Assignments
6. Block Diagram
Overall ......................................................................................................... 6-2
7. Schematic Diagrams
PS-241 ......................................................................................................... 7-2
VF-45 .......................................................................................................... 7-2
LP-59 ........................................................................................................... 7-2
VF-42 .......................................................................................................... 7-4
VF-43 .......................................................................................................... 7-4
VF-44 .......................................................................................................... 7-4
Frame ........................................................................................................... 7-6
8. Board Layouts
LP-59 ........................................................................................................... 8-1
PS-241 ......................................................................................................... 8-1
VF-42 .......................................................................................................... 8-1
VF-43 .......................................................................................................... 8-2
VF-44 .......................................................................................................... 8-2
VF-45 .......................................................................................................... 8-2
3 (E)
BVF-55/55CE
Purpose of this manual
This manual is the maintenance manual for Electronic Viewfinder BVF-55/55CE.
This manual describes the information items necessary when the unit is supplied and
installed, items on maintenance, and items that premise the service based on the
components parts such as alignment, schematic diagram, board layouts and spare
parts list, assuming use of system and service engineers.
Contents
This followings are summaries of the each section for understanding the manual.
Section 1. Installation
Describes information about connector input/output signals.
Section 2. Service Overview
Describes information about removal of cabinet and replacement of main parts.
Section 3. Electrical Alignment
Describes general information for electrical adjustments and the adjustments
procedure of this unit.
Section 4. Spare Parts
Describes parts list, exploded view, supplied accessories list used in the unit.
Section 5. Semiconductor Pin Assignments
Describes function diagrams and pin names of semiconductor used in the unit.
Section 6. Block Diagram
Describes overall block diagram.
Section 7. Schematic Diagrams
Describes schematic diagrams for every circuit board and frame wiring.
Section 8. Board Layouts
Describes board layouts for every circuit board.
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.
Manual Structure
http://getMANUAL.com