IBM System x3690 X5 User manual

System x3690 X5
Types 7147, 7148, 7149, and 7192
Problem Determination and Service Guide


System x3690 X5
Types 7147, 7148, 7149, and 7192
Problem Determination and Service Guide


Note: Before using this information and the product it supports, read the general information in
“Notices” on page 427 and the IBM Safety Information,IBM Environmental Notices and User's Guide,
on the IBM Documentation CD, and the IBM Warranty Information document that comes with the
server.
Twelveth Edition (February 2013)
© Copyright IBM Corporation 2013.
US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract
with IBM Corp.

Contents
Safety ...............vii
Guidelines for trained service technicians ....viii
Inspecting for unsafe conditions .......ix
Guidelines for servicing electrical equipment . . . x
Safety statements ............xi
Chapter 1. Start here .........1
Diagnosing a problem ...........1
Undocumented problems ..........3
Chapter 2. Introduction ........5
Related documentation ...........6
Notices and statements in this document .....7
Server features and specifications .......8
Server controls, LEDs, and power .......11
Front view..............11
Operator information panel ........12
Light path diagnostics panel........13
Rear view ..............14
Server power features ..........17
Turning on the server .........17
Turning off the server .........17
Server internal LEDs, connectors, and jumpers . . 18
System-board internal connectors ......19
System-board external connectors ......20
System-board switches and jumpers .....21
System-board LEDs...........23
System-board optional device connectors . . . 24
Optional 16-DIMM memory tray ......24
PCI riser card with three slots .......25
PCI riser card with two slots .......26
PCI riser card with one slot ........26
MAX5 features and specifications .......27
MAX5 indicators, LEDs, and power ......29
Front view..............29
Rear view ..............30
Turning the MAX5 on and off .......31
MAX5 internal connectors and buttons .....32
Chapter 3. Diagnostics ........33
Diagnostic tools .............33
Event logs ...............35
Viewing event logs through the Setup utility . . 36
Viewing event logs without restarting the server 36
Clearing the error logs..........38
POST ................38
POST error codes ...........38
Checkout procedure ...........48
About the checkout procedure .......48
Performing the checkout procedure .....49
Troubleshooting tables...........50
CD/DVD drive problems.........50
Hypervisor problems ..........51
General problems ...........52
Hard disk drive problems ........52
Intermittent problems ..........54
Keyboard, mouse, or pointing-device problems 55
Memory problems ...........57
Microprocessor problems .........58
Monitor and video problems .......58
Optional-device problems ........61
Power problems ............62
Serial-device problems..........65
ServerGuide problems ..........65
Software problems ...........66
Universal Serial Bus (USB) port problems . . . 67
Video problems ............67
Light path diagnostics ...........67
Light path diagnostics LEDs........70
Power-supply LEDs ...........78
Fan LEDs ...............79
IBM Dynamic System Analysis ........80
DSA editions .............80
Running the DSA Preboot diagnostic programs 81
Diagnostic text messages .........82
Viewing the test log results ........82
DSA messages ............82
Recovering from a UEFI update failure or UEFI
image corruption ............164
Automated boot recovery (ABR) .......166
Nx boot failure .............166
System-event log ............167
Integrated management module (IMM) error
messages ..............168
Server IMM error messages ......168
IMM error messages detected when a MAX5
is attached to the server ........221
Solving power problems..........244
Solving Ethernet controller problems .....244
Solving undetermined problems .......245
Problem determination tips.........246
Chapter 4. Parts listing, System x3690
X5 Types 7147, 7148, 7149, and 7192 . 249
Replaceable server components .......249
Consumable parts ...........255
Replaceable MAX5 components .......255
Power cords ..............258
Chapter 5. Removing and replacing
components ............261
Installation guidelines ..........261
System reliability guidelines .......262
Handling static-sensitive devices ......263
Returning a device or component .....263
Removing and replacing server components . . . 263
Removing and replacing consumable parts and
Tier 1 CRUs .............263
Removing the server top cover .....264
Replacing the server top cover .....265
© Copyright IBM Corp. 2013 iii

Removing the bezel .........265
Replacing the bezel .........266
Removing the memory tray ......266
Replacing the memory tray.......267
Removing the microprocessor air baffle. . . 268
Replacing the microprocessor air baffle . . . 269
Removing the DIMM air baffle .....270
Replacing the DIMM air baffle .....271
Removing the SAS cable guide .....271
Replacing the SAS cable guide .....272
Removing an adapter.........274
Replacing an adapter .........275
Removing 2.5-inch and 1.8-inch hot-swap
drives ..............278
Replacing 2.5-inch and 1.8-inch hot-swap
drives ..............280
Removing a simple-swap SATA drive . . . 288
Replacing a simple-swap SATA drive . . . 289
Removing a CD/DVD drive ......290
Replacing a CD/DVD drive ......291
Removing the CD/DVD cable ......293
Replacing the CD/DVD cable ......294
Removing a memory module ......295
Replacing a memory module ......296
Removing an IBM ServeRAID M1015
SAS/SATA Controller ........302
Replacing an IBM ServeRAID M1015
SAS/SATA Controller ........303
Removing an IBM ServeRAID M5015
SAS/SATA Controller ........305
Replacing an IBM ServeRAID M5015
SAS/SATA Controller ........305
Removing a ServeRAID M5016 SAS/SATA
Controller ............307
Replacing a ServeRAID M5016 SAS/SATA
Controller ............307
Removing an IBM ServeRAID B5015 SSD
Controller ............309
Replacing an IBM ServeRAID B5015 SSD
Controller ............309
Removing the IBM 4x4 Drive Backplane
ServeRAID Expansion adapter......311
Replacing the IBM 4x4 Drive Backplane
ServeRAID Expansion adapter......311
Removing the Emulex 10GbE Custom
Adapter for IBM System x or the Emulex
10GbE Integrated Virtual Fabric Adapter II
for IBM System x ..........313
Replacing the Emulex 10GbE Custom
Adapter for IBM System x or the Emulex
10GbE Integrated Virtual Fabric Adapter II
for IBM System x ..........313
Removing a RAID cache card ......314
Replacing a RAID cache card ......315
Removing a remotely installed RAID adapter
battery .............316
Replacing a RAID adapter battery remotely
in the server............317
Removing a RAID flash power module. . . 319
Replacing a RAID flash power module . . . 320
Removing a USB embedded hypervisor flash
device ..............322
Replacing a USB embedded hypervisor flash
device ..............324
Removing a hot-swap power supply . . . 324
Replacing a hot-swap power supply....326
Removing a hot-swap fan assembly ....328
Replacing a hot-swap fan assembly ....330
Removing the fan cage assembly .....331
Replacing the fan cage assembly .....332
Removing the system battery ......333
Replacing the system battery ......335
Removing a PCI riser-card assembly....336
Replacing a PCI riser-card assembly ....337
Removing the operator information panel
assembly .............338
Replacing the operator information panel
assembly .............338
Removing and replacing Tier 2 CRUs ....339
Removing the video/USB cable assembly 339
Replacing the video/USB cable assembly . . 340
Removing the power interposer card
assembly .............341
Replacing a power interposer card assembly 341
Removing the hot-swap drive backplane . . 343
Replacing the hot-swap drive backplane . . 344
Removing the 8x1.8-inch hot-swap drive
backplane assembly .........345
Replacing the 8x1.8-inch hot-swap drive
backplane assembly .........346
Removing the simple-swap SATA drive and
backplate assembly .........347
Replacing the simple-swap SATA drive
backplate assembly .........348
Removing and replacing FRUs ......349
Removing a microprocessor and heat sink 349
Replacing a microprocessor and heat sink 351
Removing the top cover/power cut-off
switch assembly ..........357
Replacing the top cover/power cut-off switch
assembly .............358
Removing the system board ......360
Replacing the system board ......363
Internal cable routing..........366
Removing and replacing the MAX5 components 375
Removing and replacing MAX5 Tier 1 CRUs 376
Removing the MAX5 bezel .......376
Replacing the MAX5 bezel .......376
Removing the MAX5 air baffle .....377
Replacing the MAX5 air baffle......378
Removing the MAX5 information panel
assembly .............378
Replacing the MAX5 information panel
assembly .............380
Removing a MAX5 hot-swap fan .....381
Replacing a MAX5 hot-swap fan .....382
Removing a MAX5 memory module . . . 382
Replacing a MAX5 memory module....384
Removing a MAX5 hot-swap power supply 388
Replacing a MAX5 hot-swap power supply 391
iv System x3690 X5 Types 7147, 7148, 7149, and 7192: Problem Determination and Service Guide

Removing the MAX5 five-drop fan cable
assembly .............392
Replacing the MAX5 five-drop fan cable
assembly .............393
Removing and replacing MAX5 Tier 2 CRUs 394
Removing the MAX5 system-board tray
assembly .............394
Replacing the MAX5 system-board tray
assembly .............395
Chapter 6. Configuration information
and instructions ..........397
Updating the firmware ..........397
Configuring the server ..........398
Using the ServerGuide Setup and Installation
CD................400
ServerGuide features .........400
Setup and configuration overview ....401
Typical operating-system installation . . . 401
Installing your operating system without
using ServerGuide..........402
Using the Setup utility .........402
Starting the Setup utility .......402
Setup utility menu choices .......403
Passwords ............407
Using the Boot Manager program .....409
Starting the backup server firmware.....409
Using the integrated management module. . . 410
Using the embedded hypervisor ......411
Using the remote presence and blue-screen
capture features ...........412
Obtaining the IP address for the IMM . . . 413
Logging on to the Web interface .....413
Enabling the Broadcom Gigabit Ethernet Utility
program ..............414
Enabling the Service Advisor feature ....414
Configuring the Gigabit Ethernet controller . . 414
Configuring RAID arrays .........415
IBM Advanced Settings Utility program ....415
Updating IBM Systems Director .......416
Updating the Universal Unique Identifier (UUID) 417
Updating the DMI/SMBIOS data.......419
Appendix. Getting help and technical
assistance.............423
Before you call .............423
Using the documentation .........424
Getting help and information from the World Wide
Web................424
Software service and support ........424
Hardware service and support .......425
IBM Taiwan product service ........425
Notices ..............427
Trademarks ..............428
Important notes ............428
Particulate contamination .........429
Germany Class A statement ........430
Documentation format ..........431
Electronic emission notices .........431
Federal Communications Commission (FCC)
statement..............431
Industry Canada Class A emission compliance
statement..............432
Avis de conformité à la réglementation
d'Industrie Canada ..........432
Australia and New Zealand Class A statement 432
European Union EMC Directive conformance
statement..............432
Germany Class A statement .......433
Japan VCCI Class A statement.......434
Japan Electronics and Information Technology
Industries Association (JEITA) statement . . . 434
Korea Communications Commission (KCC)
statement..............434
Russia Electromagnetic Interference (EMI) Class
A statement .............434
People's Republic of China Class A electronic
emission statement ..........435
Taiwan Class A compliance statement ....435
Index ...............437
Contents v

vi System x3690 X5 Types 7147, 7148, 7149, and 7192: Problem Determination and Service Guide

Safety
Before installing this product, read the Safety Information.
Antes de instalar este produto, leia as Informações de Segurança.
Pred instalací tohoto produktu si prectete prírucku bezpecnostních instrukcí.
Læs sikkerhedsforskrifterne, før du installerer dette produkt.
Lees voordat u dit product installeert eerst de veiligheidsvoorschriften.
Ennen kuin asennat tämän tuotteen, lue turvaohjeet kohdasta Safety Information.
Avant d'installer ce produit, lisez les consignes de sécurité.
Vor der Installation dieses Produkts die Sicherheitshinweise lesen.
Prima di installare questo prodotto, leggere le Informazioni sulla Sicurezza.
© Copyright IBM Corp. 2013 vii

Les sikkerhetsinformasjonen (Safety Information) før du installerer dette produktet.
Antes de instalar este produto, leia as Informações sobre Segurança.
Antes de instalar este producto, lea la información de seguridad.
Läs säkerhetsinformationen innan du installerar den här produkten.
Bu ürünü kurmadan önce güvenlik bilgilerini okuyun.
Guidelines for trained service technicians
This section contains information for trained service technicians.
viii System x3690 X5 Types 7147, 7148, 7149, and 7192: Problem Determination and Service Guide

Inspecting for unsafe conditions
Use the information in this section to help you identify potential unsafe conditions
in an IBM product that you are working on. Each IBM product, as it was designed
and manufactured, has required safety items to protect users and service
technicians from injury. The information in this section addresses only those items.
Use good judgment to identify potential unsafe conditions that might be caused by
non-IBM alterations or attachment of non-IBM features or options that are not
addressed in this section. If you identify an unsafe condition, you must determine
how serious the hazard is and whether you must correct the problem before you
work on the product.
Consider the following conditions and the safety hazards that they present:
vElectrical hazards, especially primary power. Primary voltage on the frame can
cause serious or fatal electrical shock.
vExplosive hazards, such as a damaged CRT face or a bulging capacitor.
vMechanical hazards, such as loose or missing hardware.
To inspect the product for potential unsafe conditions, complete the following
steps:
1. Make sure that the power is off and the power cord is disconnected.
2. Make sure that the exterior cover is not damaged, loose, or broken, and observe
any sharp edges.
3. Check the power cord:
vMake sure that the third-wire ground connector is in good condition. Use a
meter to measure third-wire ground continuity for 0.1 ohm or less between
the external ground pin and the frame ground.
vMake sure that the power cord is the correct type, as specified in “Power
cords” on page 258.
vMake sure that the insulation is not frayed or worn.
4. Remove the top cover.
5. Check for any obvious non-IBM alterations. Use good judgment as to the safety
of any non-IBM alterations.
6. Check inside the server for any obvious unsafe conditions, such as metal
filings, contamination, water or other liquid, or signs of fire or smoke damage.
7. Check for worn, frayed, or pinched cables.
8. Make sure that the power-supply cover fasteners (screws or rivets) have not
been removed or tampered with.
Safety ix

Guidelines for servicing electrical equipment
Observe the following guidelines when servicing electrical equipment:
vCheck the area for electrical hazards such as moist floors, nongrounded power
extension cords, power surges, and missing safety grounds.
vUse only approved tools and test equipment. Some hand tools have handles that
are covered with a soft material that does not provide insulation from live
electrical currents.
vRegularly inspect and maintain your electrical hand tools for safe operational
condition. Do not use worn or broken tools or testers.
vDo not touch the reflective surface of a dental mirror to a live electrical circuit.
The surface is conductive and can cause personal injury or equipment damage if
it touches a live electrical circuit.
vSome rubber floor mats contain small conductive fibers to decrease electrostatic
discharge. Do not use this type of mat to protect yourself from electrical shock.
vDo not work alone under hazardous conditions or near equipment that has
hazardous voltages.
vLocate the emergency power-off (EPO) switch, disconnecting switch, or electrical
outlet so that you can turn off the power quickly in the event of an electrical
accident.
vDisconnect all power before you perform a mechanical inspection, work near
power supplies, or remove or install main units.
vBefore you work on the equipment, disconnect the power cord. If you cannot
disconnect the power cord, have the customer power-off the wall box that
supplies power to the equipment and lock the wall box in the off position.
vNever assume that power has been disconnected from a circuit. Check it to
make sure that it has been disconnected.
vIf you have to work on equipment that has exposed electrical circuits, observe
the following precautions:
– Make sure that another person who is familiar with the power-off controls is
near you and is available to turn off the power if necessary.
– When you are working with powered-on electrical equipment, use only one
hand. Keep the other hand in your pocket or behind your back to avoid
creating a complete circuit that could cause an electrical shock.
– When you use a tester, set the controls correctly and use the approved probe
leads and accessories for that tester.
– Stand on a suitable rubber mat to insulate you from grounds such as metal
floor strips and equipment frames.
vUse extreme care when you measure high voltages.
vTo ensure proper grounding of components such as power supplies, pumps,
blowers, fans, and motor generators, do not service these components outside of
their normal operating locations.
vIf an electrical accident occurs, use caution, turn off the power, and send another
person to get medical aid.
xSystem x3690 X5 Types 7147, 7148, 7149, and 7192: Problem Determination and Service Guide

Safety statements
Safety xi

Important:
Each caution and danger statement in this document is labeled with a number.
This number is used to cross reference an English-language caution or danger
statement with translated versions of the caution or danger statement in the Safety
Information document.
For example, if a caution statement is labeled "Statement 1," translations for that
caution statement are in the Safety Information document under "Statement 1."
Be sure to read all caution and danger statements in this document before you
perform the procedures. Read any additional safety information that comes with
the server or optional device before you install the device.
Statement 1
DANGER
Electrical current from power, telephone, and communication cables is
hazardous.
To avoid a shock hazard:
vDo not connect or disconnect any cables or perform installation,
maintenance, or reconfiguration of this product during an electrical storm.
vConnect all power cords to a properly wired and grounded electrical outlet.
vConnect to properly wired outlets any equipment that will be attached to
this product.
vWhen possible, use one hand only to connect or disconnect signal cables.
vNever turn on any equipment when there is evidence of fire, water, or
structural damage.
vDisconnect the attached power cords, telecommunications systems,
networks, and modems before you open the device covers, unless
instructed otherwise in the installation and configuration procedures.
vConnect and disconnect cables as described in the following table when
installing, moving, or opening covers on this product or attached devices.
To Connect: To Disconnect:
1. Turn everything OFF.
2. First, attach all cables to devices.
3. Attach signal cables to connectors.
4. Attach power cords to outlet.
5. Turn device ON.
1. Turn everything OFF.
2. First, remove power cords from outlet.
3. Remove signal cables from connectors.
4. Remove all cables from devices.
xii System x3690 X5 Types 7147, 7148, 7149, and 7192: Problem Determination and Service Guide

Statement 2
CAUTION:
When replacing the lithium battery, use only IBM Part Number 33F8354 or an
equivalent type battery recommended by the manufacturer. If your system has a
module containing a lithium battery, replace it only with the same module type
made by the same manufacturer. The battery contains lithium and can explode if
not properly used, handled, or disposed of.
Do not:
vThrow or immerse into water
vHeat to more than 100°C (212°F)
vRepair or disassemble
Dispose of the battery as required by local ordinances or regulations.
Statement 3
CAUTION:
When laser products (such as CD-ROMs, DVD drives, fiber optic devices, or
transmitters) are installed, note the following:
vDo not remove the covers. Removing the covers of the laser product could
result in exposure to hazardous laser radiation. There are no serviceable parts
inside the device.
vUse of controls or adjustments or performance of procedures other than those
specified herein might result in hazardous radiation exposure.
Safety xiii

DANGER
Some laser products contain an embedded Class 3A or Class 3B laser diode.
Note the following.
Laser radiation when open. Do not stare into the beam, do not view directly
with optical instruments, and avoid direct exposure to the beam.
Class 1 Laser Product
Laser Klasse 1
Laser Klass 1
Luokan 1 Laserlaite
Appareil A Laser de Classe 1
`
Statement 4
≥18 kg (39.7 lb) ≥32 kg (70.5 lb) ≥55 kg (121.2 lb)
CAUTION:
Use safe practices when lifting.
Statement 5
CAUTION:
The power control button on the device and the power switch on the power
supply do not turn off the electrical current supplied to the device. The device
also might have more than one power cord. To remove all electrical current from
the device, ensure that all power cords are disconnected from the power source.
xiv System x3690 X5 Types 7147, 7148, 7149, and 7192: Problem Determination and Service Guide

1
2
Statement 8
CAUTION:
Never remove the cover on a power supply or any part that has the following
label attached.
Hazardous voltage, current, and energy levels are present inside any component
that has this label attached. There are no serviceable parts inside these
components. If you suspect a problem with one of these parts, contact a service
technician.
Statement 26
CAUTION:
Do not place any object on top of rack-mounted devices.
>240VA
Statement 35:
CAUTION:
Hazardous energy present. Voltages with hazardous energy
might cause heating when shorted with metal, which might
result in splattered metal, burns, or both.
Safety xv

Attention: This server is suitable for use on an IT power distribution system
whose maximum phase-to-phase voltage is 240 V under any distribution fault
condition.
Important: Maschinenlärminformations-Verordnung - 3. GPSGV, der höchste
Schalldruckpegel beträgt 70 dB(A) oder weniger.
United Kingdom - Notice to Customers:
This apparatus is approved under approval number NS/G/1234/J/100003 for
indirect connection to public telecommunication systems in the United Kingdom.
xvi System x3690 X5 Types 7147, 7148, 7149, and 7192: Problem Determination and Service Guide

Chapter 1. Start here
You can solve many problems without outside assistance by following the
troubleshooting procedures in this documentation and on the World Wide Web.
This document describes the diagnostic tests that you can perform, troubleshooting
procedures, and explanations of error messages and error codes. The
documentation that comes with your operating system and software also contains
troubleshooting information.
Diagnosing a problem
Before you contact IBM or an approved warranty service provider, follow these
procedures in the order in which they are presented to diagnose a problem with
your server.
1. Return the server to the condition it was in before the problem occurred. If
any hardware, software, or firmware was changed before the problem occurred,
if possible, reverse those changes. This might include any of the following
items:
vHardware components
vDevice drivers and firmware
vSystem software
vUEFI firmware
vSystem input power or network connections
2. View the light path diagnostics LEDs and event logs. The server is designed
for ease of diagnosis of hardware and software problems.
vLight path diagnostics LEDs: See “Light path diagnostics” on page 67 for
information about using light path diagnostics LEDs.
vEvent logs: See “Event logs” on page 35 for information about notification
events and diagnosis.
vSoftware or operating-system error codes: See the documentation for the
software or operating system for information about a specific error code. See
the manufacturer's website for documentation.
3. Run IBM Dynamic System Analysis (DSA) and collect system data. Run
Dynamic System Analysis (DSA) to collect information about the hardware,
firmware, software, and operating system. Have this information available
when you contact IBM or an approved warranty service provider. For
instructions for running DSA, see the Dynamic System Analysis Installation and
User's Guide.
To download the latest version of DSA code and the Dynamic System Analysis
Installation and User's Guide, go to http://www.ibm.com/support/entry/portal/
docdisplay?lndocid=SERV-DSA.
4. Check for and apply code updates. Fixes or workarounds for many problems
might be available in updated UEFI firmware, device firmware, or device
drivers. To display a list of available updates for the server, go to
http://www.ibm.com/support/fixcentral.
© Copyright IBM Corp. 2013 1

Attention: Installing the wrong firmware or device-driver update might cause
the server to malfunction. Before you install a firmware or device-driver
update, read any readme and change history files that are provided with the
downloaded update. These files contain important information about the
update and the procedure for installing the update, including any special
procedure for updating from an early firmware or device-driver version to the
latest version.
Important: Some cluster solutions require specific code levels or coordinated
code updates. If the device is part of a cluster solution, verify that the latest
level of code is supported for the cluster solution before you update the code.
a. Install UpdateXpress system updates. You can install code updates that are
packaged as an UpdateXpress System Pack or UpdateXpress CD image. An
UpdateXpress System Pack contains an integration-tested bundle of online
firmware and device-driver updates for your server. In addition, you can
use IBM ToolsCenter Bootable Media Creator to create bootable media that
is suitable for applying firmware updates and running preboot diagnostics.
For more information about UpdateXpress System Packs, see and “Updating
the firmware” on page 397. For more information about the Bootable Media
Creator, see http://www.ibm.com/support/entry/portal/
docdisplay?lndocid=TOOL-BOMC.
Be sure to separately install any listed critical updates that have release
dates that are later than the release date of the UpdateXpress System Pack
or UpdateXpress image (see step 4b).
b. Install manual system updates.
1) Determine the existing code levels.
In DSA, click Firmware/VPD to view system firmware levels, or click
Software to view operating-system levels.
2) Download and install updates of code that is not at the latest level.
To display a list of available updates for the server, go to
http://www.ibm.com/support/fixcentral.
When you click an update, an information page is displayed, including
a list of the problems that the update fixes. Review this list for your
specific problem; however, even if your problem is not listed, installing
the update might solve the problem.
5. Check for and correct an incorrect configuration. If the server is incorrectly
configured, a system function can fail to work when you enable it; if you make
an incorrect change to the server configuration, a system function that has been
enabled can stop working.
a. Make sure that all installed hardware and software are supported. See
http://www.ibm.com/systems/info/x86servers/serverproven/compat/us
to verify that the server supports the installed operating system, optional
devices, and software levels. If any hardware or software component is not
supported, uninstall it to determine whether it is causing the problem. You
must remove nonsupported hardware before you contact IBM or an
approved warranty service provider for support.
b. Make sure that the server, operating system, and software are installed
and configured correctly. Many configuration problems are caused by loose
power or signal cables or incorrectly seated adapters. You might be able to
solve the problem by turning off the server, reconnecting cables, reseating
adapters, and turning the server back on. For information about performing
2System x3690 X5 Types 7147, 7148, 7149, and 7192: Problem Determination and Service Guide