IBM W2H, 31x, 32x manual Problem determination, Preliminary checklist

Page 27

 

11-9-2005

 

 

 

 

 

Chapter 3. Problem determination

 

Note: Refer to IBM Safety Information - Read This First, GA27-4004, before

 

beginning the procedures in this chapter.

Both software errors or hardware failures can cause problems with the 4810/4910

SurePOS 300. This chapter contains troubleshooting information to help you

determine the cause of a problem and how to solve it.

 

 

 

Preliminary checklist

 

Begin each service call by checking all of the items in this preliminary checklist. If,

 

after performing all the steps, a problem still exists, refer to Table 3-1to continue

 

problem determination.

1.Observe the power light. If it is not on, refer to Table 3-1.

2.Verify that the cables are securely and correctly connected.

3.Verify that the I/O devices, which have their own power switches, are connected to an ac power outlet that is operating correctly and that the devices are powered on.

4.Verify that the contrast and brightness controls on the video display (if attached) are set correctly.

5.Verify that all installed hardware devices (such as a memory module, feature card, printer, or mouse) are connected correctly and securely.

Table 3-1. 4810/4910 symptoms

Symptom

Actions

 

 

 

The power LED is off.

1.

Verify that the power cord is plugged into both the

 

 

 

wall outlet and the back of the terminal.

 

2.

Verify that the voltage switch setting is correct for

 

 

your area.

 

3.

Verify that the terminal is powered on.

 

4.

Verify that there is power from the outlet.

 

5.

Disconnect all attached devices and feature cards

 

 

to determine if one is overloading the power

 

 

supply. If the power light returns, reconnect them

 

 

one at a time to determine the failing

 

 

field-replaceable unit (FRU).

 

6.

Ensure that all internal cabling and memory

 

 

modules are correctly inserted.

 

7.

Exchange the power supply.

 

8.

Exchange the system board.

 

 

 

Terminal is not operating.

1.

Unplug the power outlet, wait 5 seconds, and then

 

 

 

power ON. Verify that the power light on the front

 

 

panel is on. Look for any error messages and

 

 

listen for a beep at the completion of the POST.

 

2.

Check for a blown fuse, a tripped circuit breaker,

 

 

or a power failure.

 

3.

Verify that all cables are securely connected to

 

 

and inside of the terminal.

 

 

Power on, LED does not light.

Replace the LED assembly.

 

 

 

© Copyright IBM Corp. 2002, 2004

3-1

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Contents SurePOS Page SurePOS Second Edition March Contents Iv SurePOS Installation and Service Figures Vi SurePOS Installation and Service Related publications Driver and Service Diskette InformationAbout this guide Who should read this manualAccessibility Uninterruptible power supply optionEnd of life disposal About this guide Tell us what you think Summary of changes Xii SurePOS Installation and Service Introduction Product introduction Physical dimensionsEnvironmental considerations Front view and LEDsRear connectors 4810 31x models Rear connectorsPower 4shows the connections available on the 4810/4910 models Rear connectors 32x modelsPower. The voltage switch allows you to select 8SurePOS Installation and Service View of components Disassembling the 4810/4910 SurePOSBracket assembly and hard drive On page 1-4to locate the voltage selection switch 4SurePOS Installation and Service Preliminary checklist Problem determinationProblem determination Parts catalog Assembly 1 Field-replaceable units Assembly 4SurePOS Installation and Service Character set select 02 STX Appendix A. Input/output device commandsCharacter display VFD commands Emulation mode select 00 NullUser character definition 03 EXT Logic Controls Emulation ModeBit Byte # IBM ModeAlphanumeric message scroll 05 ENG Brightness control 04 EOTHorizontal tab 09 HT Normal Display Control Mode DC1Vertical Scroll Display Control Mode DC2 Backspace 08 BSDisplay position 10 DLE Normal-display control mode 11 DC1Carriage return 0D CR Test 0F SICursor off 14 DC4 Vertical-scroll display control mode 12 DC2Reset 1F US Cursor on 13 DC3Null VFD Commands APA commands Backspace without deletingLine feed Display position Carriage returnTest Clear displayCursor mode Screen modeDimming Horizontal scroll Display mode setUser-definable font set Font size At the all language X20--XFF EnglishJapanese Graphic display mode Double-size letter in horizontalHorizontal scroll on all lines Format of the Horizontal Scroll Start command is as follows Font selection Null CommandsAppendix B. Notices Germany Industry Canada class a emission compliance statementAvis de conformité aux normes d’Industrie Canada European Community CE mark of conformity statementAppendix B. Notices B-3 Korean Communications Statement Handling Removed Cards ESD Damage PreventionTrademarks Gevaar Appendix C. Safety informationFare PerigoVigyázat VorsichtPeligro PericoloVarning-livsfara IBM GA27-4004 IBM GA27-4004 8SurePOS Installation and Service APA A-9 Index NumericsPower Cooling Light off Power supply How satisfied are you that the information in this book is Readers’ Comments We’d Like to Hear from YouBusiness Reply Mail Page Part Number 03R5994
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