JP3029320U - Template for board repair - Google Patents

Abstract

(57) Abstract: [PROBLEMS] To provide a template for repairing a board for easily and surely confirming the position of a component such as an electronic component on a printed wiring board. A template 1 having the same size as a board body fixed to a frame 4 is used by being fixed to the board body during repair work such as board repair by component replacement. Cutouts 1a and 1b having a predetermined size are formed on the left side and the right side of the template 1, and four quadrangular cutouts 1c are formed on the upper side and the lower side thereof. Further, a plurality of openings 11 to 13 and the like are formed in the template 1, and these openings 1 are fixed with the template 1 fixed to the substrate.
The solder surface of the substrate can be visually recognized from 1 to 13 and the like. Further, the surface of the template 1 has a plurality of characters, symbols and figures 25-3.
3 is filled in by printing etc.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a template for repairing a board that assists repair work of an electronic circuit board used for electronic equipment, electric equipment, or assembly work thereof.

[0002]

[Prior art]

 In the work of repairing electronic circuit boards, such as electronic devices such as television sets, where a large number of electronic components are mounted on the printed wiring board, it is necessary to replace the electronic circuit board beforehand based on the analysis of the failure. They had to identify the part and find its mounting location on the printed wiring board. Therefore, conventionally, referring to wiring diagrams and circuit pattern diagrams, etc., the notation of electronic components printed on the actual board has been confirmed, and then the electronic components have been replaced.

[0003]

[Problems to be solved by the device]

 However, for those who are not proficient in such repair work, since the work of confirming the components on the board is complicated, various mistakes may be caused when the components are replaced.

Further, even in a board assembling work including a large number of electronic components, it is necessary to mount a plurality of electronic components on a narrow printed wiring board in accordance with a series of work procedures. However, the determined work order may be wrong or the work may be omitted. There was a risk of defective products.

In particular, when an electronic device once delivered fails, the electronic circuit board repair work performed at the delivery destination is performed without ensuring a sufficient working environment in terms of brightness and space. . Therefore, there is a problem that even a person skilled in the work is likely to lower the work efficiency or easily cause a component mounting error.

The present invention has been made to solve the above problems, and a first object thereof is to provide a board repair template for easily and surely confirming the position of a component. is there.

A second object of the present invention is to provide a substrate repair template for efficiently performing repair work such as component replacement following confirmation of component positions.

[0008]

[Means for Solving the Problems]

 The board repair template according to the invention of claim 1 is a board repair template for use in repairing an electronic circuit board or the like having a plurality of electronic components, and is used for soldering the electronic circuit board. An opening is formed corresponding to the mounting position of the electronic component, and a notation indicating the electronic component is provided near the opening.

In the board repair template according to the second aspect of the present invention, there is an opening portion at a position corresponding to the protruding portion of the electronic circuit board itself or the protruding portion of the fixing frame to which the electronic circuit board is attached. Is to have.

The board repair template according to the invention of claim 3 displays information necessary for the repair such as the mounting position of the electronic component, the part number, the direction of the polarity, etc., or the work sequence. It is a thing.

The template for repairing a substrate according to the invention of claim 4 is made of a non-combustible or flame-retardant material.

The template for repairing a board according to the invention of claim 5 is provided with an arrow mark indicating the mounting order of the electronic parts to be repaired.

[0013]

[Embodiment of device]

 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

First Embodiment FIG. 1 is a plan view of an example of a template for repairing a substrate according to the present invention. This template 1 is used, for example, for repairing the main board of a color television receiver, has the same size as the main board, and is used by being fixed to the main board during the repair work. It Notches 1a and 1b are formed on the left side and the right side of the template 1, and four quadrangular notches 1c are also formed on the upper side and the lower side thereof. Further, a plurality of openings 11 to 24 are formed in the template 1, and the solder surface of the board can be visually recognized from the openings 11 to 24 with the template 1 fixed to the board. Further, a plurality of characters, symbols, and figures are printed on the surface of the template 1, which will be described later with reference to FIG.

Here, a method of fixing the template 1 to the main substrate when the color television receiver is repaired will be described with reference to FIG.

First, the back side of the housing 2 of the color television receiver is opened, and the board body 3 of the main board requiring repair is taken out together with the board fixing frame 4. The board fixing frame 4 is formed in a frame shape, and the board body 3 is held by the frame 4 by fixing the four sides of the back surface (solder surface) of the board body 3 to the four sides of the frame 4. Here, the board body 3 on which a plurality of electronic components are mounted is reinforced by the frame 4 and is fixed to a predetermined position of the housing 2 via the frame 4. Further, the board fixing frame 4 is formed with projections 4a for aligning the two when fixing to the board body 3, and these projections 4a correspond to the notches 1c on the upper side and the lower side of the template 1. are doing. In addition, 5 is a shield plate attached to the back surface of the substrate body 3 and protruding from the back surface, and 6 is a frame 4 to the substrate body 3 for supporting a flyback transformer mounted on the front surface of the substrate body 3. It is a protrusion that extends to the position below the flyback transformer on the back surface of and is integrally formed.

Next, the template 1 is pressed against the back surface (solder surface) of the substrate body 3 from the direction indicated by the broken line in FIG. As a result, the notch 1a of the template 1 and the protrusion 5 of the substrate body 1 are fitted together, and the notch 1b and the protrusion 6 of the substrate body 1 are fitted together so that the template 1 is attached to the substrate body 3 The mold plate 1 is fixed to the solder surface of No. 1 and does not fall off from the substrate main body 3 if it is slightly tilted during the subsequent work.

FIG. 3 is a view showing a state in which the template 1 is fixed to the substrate body 3. The solder surface of the board body 3 is partially exposed through the plurality of openings 11 to 24 of the template 1. As a result, for example, the component 7 attached to the solder surface side can be visually recognized in the opening 12, and the component 8 and the like can be visually recognized in the opening 11. In addition, in the opening portion 13, the leg insertion hole 9 of the component attached to the component surface on the front surface side of the substrate body 3 and the like can be visually recognized.

Next, the characters, symbols and figures printed on the surface of the template 1 will be described.

In the character portion 25, the number (C230) of the capacitor attached by the leg insertion hole visually recognized from the opening portion 13 is displayed. Such numbers are also described on the solder surface of the substrate body 3 for each other component, but they are not always visible from the opening 13 or the like. Here, the character portion 25 for displaying the capacitor number is present near the opening portion 13, so that the position of the capacitor C230 can be confirmed quickly. In addition, the character portion 25 adjacent to the character portion 25 is also provided with a rating display (25 V 330 μF) for specifying the type of capacitor. 27 is a character portion for displaying a work number (), which will be described in detail later. Reference numeral 28 is a character portion indicating that the template 1 is for repairing the main board.

Reference numeral 29 is a graphic indicating the mounting position of the integrated circuit (IC 301) fixed to the component surface of the substrate body 3. By the same figure as the figure 29, the mounting positions of the IC 204, the IC 203, and the IC 703 are displayed on the template 1 respectively. In the character portion 30, a statement instructing the removal of the component (Q601) is described.

Reference numeral 31 is a graphic display portion showing a mounting treatment state on the solder surface of the board body 3 around the component 7 visually recognized from the opening 12. The figure display section 31 displays the work number () as well as the number (CA2) of the component 7. Further, a graphic display portion 32 similar to the graphic display portion 31 shows a mounting treatment state on the solder surface of the component 8 visually recognized from the opening 11.

Reference numeral 33 is an arrow indicating a work order in the substrate body 3. That is, the arrow 33 indicates that after the component 7 is attached to the board main body, the work of attaching the component C230 positioned in the direction indicated by the component 7 is performed. By printing symbols such as arrows 33 on the template 1, the template 1 can be used for a series of standard work such as assembly work and replacement work by attaching parts in a predetermined order at a plurality of positions on the same board. By following these symbols above, you can easily check the position of all parts, starting from the work number.

Since characters, symbols, figures, etc. are printed on the surface of the template 1 as described above, the position of the component can be surely confirmed even when the environment such as repair work is poor. Further, since the position of the component mounted on the surface of the substrate body 3 and the mounting treatment state can be known from the graphic 29 of the template 1 and the graphic display portion 31 etc., it is possible to easily confirm the position of the component that needs to be replaced. The replacement work itself can be done in a short time.

Further, in a repair work such as an assembly work or a replacement work performed by using the template 1 fixed to the substrate body 3, it is necessary for the work such as the replacement in advance according to the work procedure described therein. By arranging the parts to be ordered in order or preparing a kit of parts, there is no risk of confusing the kind of parts to be used, and the repair work can be simplified and ensured. .

Moreover, since the components attached to the solder surface of the substrate body 3 can be visually recognized from the openings 11 and 12, the components attached with the template 1 fixed are removed, and then new components are attached. Parts replacement work such as soldering can be performed. In that case, even if the soldering surface of the substrate body 3 is dirty and it is difficult to read the characters printed on it, the character type 25 of the template 1 and the like can be used to accurately confirm the component type and its mounting direction. .

If the material of the template 1 is simple paper, the template for repairing the substrate can be formed at low cost. However, if the template 1 is a non-combustible material that can withstand work involving heat and fire such as removing parts with a soldering iron and soldering, identify the component by mounting the template 1 on the substrate body 3. However, it is possible to continue the parts replacement and soldering work in that state.

[0028]

[Effect of device]

 Since the present invention is configured as described above, it has the following effects.

According to the invention of claim 1, even when the working environment in which the electronic device to be repaired is installed is poor, the position of the component can be surely confirmed, and the position of the component requiring replacement can be confirmed in a short time. .

According to the second aspect of the present invention, the template for repairing the board is pressed from the solder surface of the board to be repaired, the position of the replacement part is confirmed, and the replacement work by soldering or the like can be performed at the same time.

According to the third aspect of the present invention, even if the printed circuit board is dirty and it is difficult to read the printed characters, the directionality of the parts can be confirmed without error when they are mounted.

According to the invention of claim 4, since the template is made of a non-combustible or flame-retardant material, it is possible to withstand work involving heat and fire such as component removal by a soldering iron and soldering. Therefore, the template can be attached to the board to identify the component, and then the component replacement or the soldering work can be performed immediately.

According to the invention of claim 5, when a series of routine work such as component mounting work is performed at a plurality of positions on the same board, the mounting work is performed in advance according to the work procedure described on the template. By arranging the required parts in order or making them into a kit, the work can be simplified and ensured.

[Brief description of drawings]

FIG. 1 is a plan view showing an example of a template for repairing a substrate according to the present invention.

FIG. 2 is a diagram illustrating a method of fixing a template to an electronic circuit board.

FIG. 3 is a diagram showing a state in which a template is fixed to an electronic circuit board.

[Explanation of symbols]

1 template, 2 color television receiver housing, 3
Board main body, 4 board fixing frame, 7, 8 parts, 9 part leg insertion holes, 11-24 opening parts,
25-28, 30 character part, 29 figures, 31, 3
2 Graphic display, 33 arrows.

Claims (5)

[Scope of utility model registration request] 1. A board repair template for use in repairing an electronic circuit board having a plurality of electronic components, wherein an opening is provided corresponding to a mounting position of the electronic component on a solder surface of the electronic circuit board. A template for repairing a substrate, which is formed and has a notation indicating the electronic component in the vicinity of the opening. 2. The opening portion is also provided at a position corresponding to the protruding portion of the electronic circuit board itself or the protruding portion of the fixing frame to which the electronic circuit board is attached. Template for repairing a substrate as described. 3. A mounting position of the electronic component, a component number,
3. The template for repairing a substrate according to claim 1, wherein information necessary for repairing the directionality such as polarity or the order of work is displayed. 4. The template for repairing a substrate according to claim 1, which is made of a non-combustible or flame-retardant material. 5. The template for repairing a substrate according to claim 1, further comprising an arrow mark that indicates a mounting order of electronic components to be repaired.