1. Flood the area under the component or "chip" to be removed with wetting solution, Motorola Part #66-80333 E73 prior to component removal using the "eye dropper" found in the Motorola SMD ToolKit (Motorola Part Number 01-80303 E45); Figure 4 illustrates the correct application method.

2. Set the temperature control on the Chipmaster to 425°. Reset the timer to zero. To set or change setpoint temperature, press the INDEX key on the controller TWICE; then press either the "UP" or "DOWN" arrow to reach the desired temperature (RED LED display). To do this, use the "UP" arrow to increase; hold the button in to increase rapidly. To increase temperature in one-degree increments, press the arrow button in individual steps. The same procedure works for the "DOWN" arrow button. Then press ENTER. Press the INDEX key one more time to return to the operational menu.

3. To reset the timer to zero, press the ENTER key and the "DOWN" arrow key simultaneously. The display will flash once, indicating that the timer has been reset to zero.

How the Timer Works: When the specific time has been set, e.g., 60 seconds, the Chipmaster's timer counts down to zero once the foot pedal to start the heating cycle is depressed. The timer will stop at zero, even if the heating continues (foot remains on the pedal). If the timer is reset to zero, it will begin counting UP once the heating cycle begins and will STOP counting once the cycle is stopped by the operator (foot pedal released). The timer will display the cycle time (e.g., 45 seconds). Each time the foot pedal is depressed to start the cycle thereafter, the timer will count DOWN to zero from whatever that cycle time (in this example, 45 seconds) was recorded. The procedure for changing cycle time is similar to setting temperature.

4. To Set Time: Press the INDEX key ONCE (from the operational menu) to reach the timer set menu. Use the "UP" arrow key to increase time in one-second increments; hold the button down to increase rapidly. Once the time is set, press ENTER; then press the INDEX key TWICE to return to the operational menu.

5. Install the appropriate nozzle in the Chipmaster. The nozzle orifice should be only slightly larger than the chip itself. Center the chip under the nozzle as shown in Figure 5. Be sure to observe vent and height positioning as shown in Figure 6.

6. Depress the foot pedal to begin the heating cycle. Note that the GREEN display will begin "counting" the seconds while heating. The RED display will indicate the heated air temperature as it ramps.

7. Turn on the vacuum pump, then depress the vacuum pickup assembly to capture the chip. The chip will not, however, lift off at this time.

CAUTION: After removal, do not touch or move the chip!

8. After 40-60 seconds of heat application, observe the vacuum pickup assembly. It should lift up automatically with the chip held be the suction cup. This lift-off indicates that the chip has been successfully removed.

9. Remove the board holder arm assembly from under the nozzle, but DO NOT turn off the vacuum or move the chip.

10. Leave the chip in position until the RED LED temperature indicator (nozzle temp.) drops to 300°F.

11. Using tweezers in the Motorola SMD Tool Kit, grad the cooled chip and turn off the vacuum pump, using the switch on the front of the Chipmaster.