TRS Advanced WB Intel Issue 02.pdf - 第133页

Issue 2, Nov 14 TRS Advanced Maintenance 133 Objective 44: Locate tr ays in the printer. Ten trays are fitted to prevent contamination from print medium or other foreign bodies. Nine of the trays are located around the r…

TRS Advanced Maintenance

132

Issue 2, Nov 14

Objective 43: Process Fault Finding

OFFSET

WEIGHT

STANDARD(notspecif ictoTRSstrips)

Boardfile/recipe Incorrect

Stencil Incorrectone/damaged

Squeegees Incorrectone/damaged/incorrectfit

Paste Incorrectone/age/excess/in suff icien tqty.

Vacuum Incorrectset/fault

Printoffsets Incorrectsetup

Visionalignmentsystem Inco rrectsetup/calibration/f ault

DURINGPRODU CTION

Stri p Toowarped/stiff/incorrectorie ntati on

AFTERPRODUCT

CHANGEOVER

Incorrectone

Incorrectfit(e.g.FM)

Incorrectset(Z)

Incorrectone

Incorrectfit(e.g.FM‐mov eduri ngpri n t)

Incorrectset(board‐stop)

Adapte rplate Incorrectset(Z)

Incorrectone

Incorrectfit(e.g.FM)

Incorrectfit(pitch&Z)

Surround

Tooling

TRP

PotentialImpac t

Issue 2, Nov 14

TRS Advanced Maintenance

133

Objective 44: Locate trays in the printer.

Ten trays are fitted to prevent contamination from print medium or other foreign bodies.

Nine of the trays are located around the rising table and a protective tray is placed in the

machine after the stencil has been loaded. (For more detail see MPU 602321*1)

TRS Advanced Maintenance

134

Issue 2, Nov 14

Objective 45: Remove and refit left side safety cover.

The left hand safety cover assembly is fitted to the side panels. With new design “safety gate

assembly” protects personnel from inadvertent access to the board entry/exit ports. (For

more detail see MPU 602351*1)