PCBA Visual Inspection AOI Specification Inspection Operation

First. Purpose:

1. Standardize the correct use of personnel.

2. In order to improve product quality and yield, it is important to provide timely
feedback to the SMT process in order to address the problem of poor appearance and solder joints on PCB
components.

Second. Scope:

All Shenzhou ALD automatic inspection instruments are compatible with lead and lead-free processing.

Third. Responsibilities:

1. Operators: General machine operation (on/off; program loading; production testing);
daily maintenance

2. Technicians: Responsible for the production of programs, adjustments,
troubleshooting and monthly maintenance. They also formulate operating standards.

3. Department of Quality: Audit the implementation and maintenance of operator SOPs.

Forth. Operation Steps:

1. Switch on the main computer control switch by pressing the POWER button. Enter the
WINDOWS window after the machine has started, as shown in figure 1.

2. Click on the ALD615 icon in the desktop and enter the user name or password into the
dialog box. Or, press the confirmation button to reset the machine, as shown in Figure 2

3. Install the PCB test program and adjust the width for the guide rail.

4. Place the PCB in the correct orientation, press the LOAD Button on the right-hand
side of the machine and the machine will automatically inspect the PCB, as shown in Figures 3 and 4.

5. The machine will display PASS after the inspection or a picture showing a defect
that must be confirmed. As shown in Figure 5, remove the PCB that has been inspected with your left,
insert another PCB into the machine with your right, and then press the LOAD button to inspect the next
one automatically.

6. When the machine is inspecting automatically, confirm that the PCB previously
inspected has been inspected.

6.1 No defects were found during the inspection if the AOI machine shows PASS. The
operator marks each PCB in the desired position and places it in the electrostatic box within the OK
product placement zone in order.

6.2 In the event that the machine displays an incorrect picture, the operator must
conduct a second inspection of the PCB and confirm the components on it (refer to SMT appearance
inspection standards):

a.If the visual inspection confirms that all defects are AOI misjudgments, (false
defect), the operator will mark the position of every small PCB piece and place it in the electrostatic
box within the OK product placement zone in order.

b. In the event that the visual inspection confirms the display defective point to be
NG, the operator should attach a red arrow to the corresponding location, place it in the electrostatic
container in the defective product placing area for maintenance and complete the AOI Inspection Daily
Report;

c. In the event that AOI detects many defects or false defects, it is important to
notify technical staff in advance so they can take action.

7. Shutdown: Once the test has been completed, close the production screen. Turn the
POWER button OFF and turn off all power to the equipment.

Fifth. Precautions:

Orinew Technology SMT Processing:

1.Wear anti-static wristbands or gloves. The boards must be laid out horizontally and
gently when being taken or placed. Avoid stacking them to avoid collisions.

2. Defective and good products must be separated. AOI should be retested after the PCB
has been repaired.

3. In the event of more than three consecutive abnormalities at the same location,
technicians should be informed in advance to make the necessary adjustments.