Verigy V93000Service Training

Module 22:Troubleshooting

Tools & Tips

22 - TroubleshootingPage 2

Verigy Restricted

Valves for soft docking

Valves for hard docking

Accessing the pneumatic valves

Undocking the Test Head(With system powered down)

22 - TroubleshootingPage 3

Verigy Restricted

Turn red tap to cut off compressed air and bleed off pressure at the interface

Press blue buttons to open/close valves manually

Valves for soft docking

Undocking the Test Head(With system powered down)

22 - TroubleshootingPage 4

Verigy Restricted

Press blue buttons to open/close hard docking valves

Valves for hard docking

Undocking the Test Head(With system powered down)

22 - TroubleshootingPage 5

Verigy Restricted

AC/DC

All AC/DC fail in the low level diagnostic

All AC/DC LEDs for AC/DC Power Units installed on the Power Backplane are lit

Fault Isolation :

Check the +/-15V LED on power backplane (voltage generated on Rack Interface)

AC/DC Problems

22 - TroubleshootingPage 6

Verigy Restricted

Failure Condition

All DC/DCs fail in the low level diagnostics

All LEDs on the power control board don’t indicate a failure

Fault Isolation

Check the +/- 15V by measuring the voltage directly on the power control board capacitors (voltage generated on Rack Interface)

DC/DC Problems

-15VDC +15VDC

22 - TroubleshootingPage 7

Verigy Restricted

DPS cannot be recognized

Fault conditions

Raw power of the DPS is missing (possible defective 12V source from DC/DC; Replacement of DC/DC may be necessary)

OR

DPS was in over-current state and switched off by the SW (Power cycle the system and restart the V93000 s/w. If this does not clear the problem DPS baseboard replacement may be necessary)

DC/DC vs. DPS Baseboard Problems

22 - TroubleshootingPage 8

Verigy Restricted

Sequencer Time Outs

Failure Condition• SW hangs during bootup for a given amount

of time, ~2 min. • Once SW resumes, missing channels are

seen in the channel lists.

Repair Recommendation• If single channel missing, replace channel

module.• If all four channels on channel module

missing, replace interface module.

22 - TroubleshootingPage 9

Verigy Restricted

Failure Condition

• Tester shuts down in red light condition after SW startup.

• Red ‘Ground Offset’ LED on power backplane is lit.

Fault Isolation

• Manually measure DCOM to chassis, nominal 5k ohm.

• Inspect interface module LED’s on channel boards for

fault condition.

• Run low level diagnostics.

• Pull boards from card cage.

• Other possibilities: shorted pressure sensor, power

control board.

• Once hardware has been identified with grounding

issue, repair or replace.

DCOM Issues

22 - TroubleshootingPage 10

Verigy Restricted

1. SW crash from time to time during running production

2. Starting V93000 software ends with a Fatal error in the report window

Prerequisite:

System can be powered-up

Fatal Errors

22 - TroubleshootingPage 11

Verigy Restricted

This kind of “Fatal error” can be generated by:Defective Channel module

Defective Clock boardDefective Master Clock Ring Defective Data & Address Bus of the Backplane/Control Boards

Defective Communication Path

Steps to find this failure:1. Run several DIS Tests (DFLT & DCIC & DADR)2. Bring the tester down to the minimum configuration, CS1 Only.

8CC (CC1 & CC5) 4CC (CC1 & CC3)

3. Verify physical connections of the clock ring cables on front planes.

Fatal Errors During SW Boot

22 - TroubleshootingPage 12

Verigy Restricted

Run DIS tests

DFLT DIS Fiber Link Test

DCIC DIS Computer Interface card

DADR* DIS Address & Data Bus Test

• You must manually verify that all installed hardware is identified in this test. It will pass even if some hardware is missing. You must also cycle power on the system after running this test.

NOTE: View di_log_file for results of above tests even if you get a passing result.

Fatal Errors During SW Boot

22 - TroubleshootingPage 13

Verigy Restricted

Failure tracing to the card cage (CC) level:1. Remove all the jumper boards between the CCs except between

CC1 & CC5 in 8CC TH and CC1 & CC3 in 4CC TH.2a. Disconnect all fiber-optic lines from the control

boards, except 1 line (CC1 on 512 TH or CC5 of 1024 TH).2b. Boot the SW and look for fatal errors. If there are no errors, add cards (control

board, channel cards, clock, DPS, DC/DC) from other card cages, 1 card cage at a time.

2c. When you find the cards that causes the error proceed to step 33. Try replacing the suspect control board/backplane assembly.4. Remove all of the channel cards in the suspect card cage and reinstall them

one at a time.5. Try replacing the clock board in the suspect card cage.

Minimum Configuration

22 - TroubleshootingPage 14

Verigy Restricted

Backplane Assembly InstallationNOTE: It’s a must to use two ‘T’ handlesfor even insertion of all connectors.If only one ‘T’ handle is used, one mustswitch between top and bottom screws every3 turns.

CAUTION: Once top and bottom connectorshave engaged, stop tightening and check forproper alignment on all slots before continuing.

22 - TroubleshootingPage 15

Verigy Restricted

Monitor ToolRun Monitor Tool

Select“update control”to choose options.

Click to changetemperaturereadout.

Click on ‘details’ to get actual measurements, reported in UI Report Window

22 - TroubleshootingPage 16

Verigy Restricted

Signal Pin

Ground Pin

High Performance Pogo Pin Replacement

E7995-68513Pogo Pin Kit contains:

20 Signal Pins 40 Ground Pins

WARNING: Signal pins are one use only. If a signal pin is damaged, do not remove pogo pin froma good pogo cable as a replacement. The pogo pin will be damaged upon removal from the pogo block.

Products Covered:PS3600HSMPinScale HXBIST Assist BAAMCC

22 - TroubleshootingPage 17

Verigy Restricted

Ground Pin Tourque Meterwith Insert

Ground Pin Extractor(0,8mm left hand drill with chuck)

Signal Pin Insertion Tool

Signal Pin Extraction Tool(M 0,9 tap with chuck)

Toolset E7995-68602 Overview

22 - TroubleshootingPage 18

Verigy Restricted

Use the ground pin extractor (left hand drill bit 0,8mm with chuck)

Place the drill on the broken ground pin, use little pressure and turn counterclockwise to remove the broken pin.

NOTE: The drill is very fragile, please handle with the utmost

caution.

Extracting broken ground pins

22 - TroubleshootingPage 19

Verigy Restricted

Insert a new ground pin and gently screw in the pin with the bit.

Use the torque meter and tighten the pin to 3cNm.

Inserting a new ground pin

22 - TroubleshootingPage 20

Verigy Restricted

There are 2 ways a signal pin can break:

1. Signal pin breaks ~3mm above the isolator.

2. Signal pin breaks right at the isolator.

For case 1, just use needle nosed pliers

and pull the pin.

Removing a broken signal pin

22 - TroubleshootingPage 21

Verigy Restricted

For case 2:

Use the signal pin extractor and place the tip of the tap on the isolator of the signal pin.

Turn the tap until you reached around 3-4 mm. (3-4/32“)

Pull out the pin

NOTE: The tool is very fragile! Please handle with the utmost caution.

Removing a broken signal pin

22 - TroubleshootingPage 22

Verigy Restricted

Insert a signal pin

Press-in the signal pin with the Pin Insertion Tool.

Inserting a new signal pin

22 - TroubleshootingPage 23

Verigy Restricted

One thing not to be forgotten!

Some of the tools break easily, so please work with them as if you were a watchmaker.