2500_Users_Manual.pdf - 第127页

Operation ProM aster 25 00 User Manua l 4-13 1. Rem ove devices from al l three track sectio ns. 2. Turn the track width adjustment knob co unterclockwise un til the track is at its narrowest s etting. This step is impor…

Operation

4-12 ProMaster 2500 User Manual

Installing a

Programming

Module

Install the new programming module with the silk-screened

to the

right (toward the input track). Guide pins on the 2500 will not allow you

to install the module backwards. If the beam is centered over the

programming station, insert the module at an angle into position as

shown in Figure 4-8.

The 2500 automatically completes the installation of the module on the

programming pin interface (SPA pins) when you start the Task. System

software controls the release of the module between Tasks and when the

operator requests it by pressing

STOP

(on the 2500’s keyboard) twice.

Pressing

START

closes the clamps on the module again.

Adjusting the Track

Width

Whenever a new Task requires that you change device package type, you

must adjust the track width for the new device. All three track sections

are adjusted by turning the track width adjustment knob (see Figure 4-9).

To adjust the track width, perform the following procedure.

CAUTION: Be sure to adjust the track width according to the following

procedure. Closing the track on a device while it is in the

track may compress the leads and damage the device.

Figure 4-8

Installing a Programming Module

1767-1

FRONT OF 2500

SPA PINS

PROGRAMMING

MODULE

PROGRAMMING STATION

ALIGNMENT

PIN (1 of 4)

VIEW FROM THE SIDE

FRONT

OF 2500

BEAM

CHUCK

PROGRAMMING

MODULE

Operation

ProMaster 2500 User Manual 4-13

1. Remove devices from all three track sections.

2. Turn the track width adjustment knob counterclockwise until the

track is at its narrowest setting. This step is important because it

prepares the three track sections to be adjusted together and

uniformly.

3. Begin opening (widening) the track.

4. Before the track opens as wide as the device you will be using, place

one of the devices (with its leads up) in the input track next to the

programming station’s stop guide. See Figure 4-10.

The device should be resting on the rear wall of the track (see Figure

4-10) and should block the optic.

Figure 4-9

Adjusting the Track Width — Turning the knob clockwise opens all three track sections together.

TRACK WIDTH

ADJUSTMENT KNOB

DEVICE INDENT

1856-2

Operation

4-14 ProMaster 2500 User Manual

Note: Insert square PLCC devices in the input track with pin 1 oriented toward

the back of the 2500. Insert rectangular PLCC devices (32 pin), DIP and

SOIC devices in the track with pin 1 toward the input tube.

5. Slowly turn the track adjustment knob clockwise to widen the track

until the device just drops into place on the track floor.

CAUTION: Do not close (narrow) the track width while a device is lying

flat in the track; the device leads may be damaged.

Attachment for 8-pin

150-mil SOIC Devices

The 8-pin 150-mil SOIC devices are light enough that they may not rest

flat in the input track while the input orbital assembly vibrates to advance

devices down the track. A device keeper bar assembly attached next to

the input track keeps devices in the proper position in the track. The

keeper bar is oriented parallel to and above the track, allowing 150-mil

SOIC devices to move freely down the track (see Figure 4-11).

Figure 4-10

Final Track Adjustment

1855-1

STOP GUIDE

DEVICE

OPTIC