Service manual

ViewSonic Corporation Confidential - Do Not Copy PJ513D-1

5. Adjustment Procedure

Visual Inspection & Cleaning

Visual Inspection Criteria

1.0 Inspection zone definition and inspection distance

A-side: Up case - Up case surfaces except right / left / behind side’s surface.

Front cover - Front cover surface

B-side: Side - right/left sides surfaces

Back cover - Back cover surfaces

C-side: Low cause - bottom surfaces

For spot inspection distance is 45 cm on A/B/C-side. And inspection time is 10 sec.

For scratch inspection distance is 45 cm on A/B/C-side. And inspection time is 10 sec.

1.1 Appearance Inspection Criteria

1.1.1 Environment Condition

1.1.1.1 Lighting intensity

All appearance quality shall be inspected with the lighting condition as 500~800Lux

(natural lighting or white fluorescent light).

1.1.1.2 Inspection angle and distance to object or target

All part inspection must be done under direct overhead lighting. Viewing angle and

distance are dependent on surface classification. In all cases, parts must be held in such

that the light reflection does not disturb the inspector's eye.

Figure 1