IBMメーカー9179-MHBの使用説明書/サービス説明書
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P ower Systems P ower supplies for the 9117-MMB or 9179-MHB .
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P ower Systems P ower supplies for the 9117-MMB or 9179-MHB .
Note Before using this information and the pr oduct it supports, read the information in “Notices” on page 97, “Safety notices” on page v, the IBM Systems Safety Notices manual, G229-9054, and the IBM Environmental Notices and User Guide , Z125–5823.
Contents Safety notices ................................. v Power supplies for the 91 17-MMB or 9179-MHB ................... 1 What's new in Power supplies ............................. 1 Removing the 91 17-MMB or 9179-MHB power supply with the power turned off .
Disconnecting the power cords fr om the 8202-E4B or 8205-E6B system .............. 5 8 Connecting the power cords to the 8202-E4B or 8205-E6B system ................ 6 0 Installing a feature by using the Har dware Management Console ................ 6 0 Installing a part by using the Systems Director Management Console .
Safety notices Safety notices may be printed throughout this guide: v DANGER notices call attention to a situation that is potentially lethal or extremely hazar dous to people. v CAUTION notices call attention to a situation that is potentially hazardous to people because of some existing condition.
DANGER When working on or around the system, observe the following precautions: Electrical voltage and current from power , telephone, and communication cables are hazardous. T o avoid a shock hazard: v Connect power to this unit only with the IBM provided power cord.
Observe the following precautions when working on or around your IT rack system: v Heavy equipment–personal injury or equipment damage might result if mishandled. v Always lower the leveling pads on the rack cabinet. v Always install stabilizer brackets on the rack cabinet.
CAUTION: Removing components from the upper positions in the rack cabinet improves rack stability during relocation. Follow these general guidelines whenever you relocate a populated rack cabinet within a room or building: v Reduce the weight of the rack cabinet by removing equipment starting at the top of the rack cabinet.
(L003) or All lasers are certified in the U.S. to conform to the r equirements of DHHS 21 CFR Subchapter J for class 1 laser products. Outside the U.S., they ar e certified to be in compliance with IEC 60825 as a class 1 laser product. Consult the label on each part for laser certification numbers and appr oval information.
CAUTION: Data processing environments can contain equipment transmitting on system links with laser modules that operate at greater than Class 1 power levels. For this reason, never look into the end of an optical fiber cable or open receptacle. (C027) CAUTION: This product contains a Class 1M laser .
Power supplies for the 91 17-MMB or 9179-MHB Learn about removing and r eplacing a power supply in a server . Learn about removing and replacing a power supply , fan, or input power distribution assembly in a 5802 or a 5877 expansion unit.
6. Lift the tab (B) toward the power cor d retainer (C) to release the power supply . Pull the power supply away from the system, as shown in Figur e 1. If you want to replace the power supply you r emoved, see “Replacing the 91 17-MMB or 9179-MHB power supply with the power turned off” on page 4.
Related information Before you begin Identifying a failing part Stopping the system or logical partition Removing the 91 17-MMB or 9179-MHB power supply with the power turned on Learn how to remove a power supply with the system power turned on if you want to r eplace a failing power supply , or as a part of another service action.
Note: When you remove a power supply with the system power turned on, an err or is logged. No action is requir ed for this error . If you want to replace the power supply you r emoved, see “Replacing the 91 17-MMB or 9179-MHB power supply with the power turned on” on page 6.
3. Connect the power cable A to the power supply . Note: This system is equipped with a second power supply . Before continuing with this procedur e, connect all power sources to the system. 4. Start the system, as described in Starting the system or logical partition.
6. Close the rear rack door . Related information Starting the system or logical partition Replacing the 91 17-MMB or 9179-MHB power supply with the power turned on Learn how to replace a power supply with the system power turned on. Attention: T wo power supplies must be present in the system to power on the system unit.
Attention: v Attach a wrist strap to an unpainted surface of your hardwar e to prevent electrostatic dischar ge (ESD) from damaging your har dware. v When using a wrist strap, follow all electrical safety procedur es. A wrist strap is for static control.
7. Close the rear rack door . Related information Before you begin Power supply LEDs The various states of the power supply light-emitting diodes (LEDs) can be used to identify or verify a power supply that you are servicing.
v If the error and identify function (amber) LED is flashing, the ac power LED is on solid and the dc power LED is off, the power supply is not operating corr ectly and has been identified for replacement.
light-emitting diode (LED) (A) as shown in Figure 7. A lit (flashing or on solid) LED indicates the failing power supply . 5. For the power supply that you want to remove, slide the cable r etention bracket to the open position (A) , and then disconnect the power cable (B) as shown in Figure 8.
Attention: v Attach a wrist strap to an unpainted surface of your hardwar e to prevent electrostatic dischar ge (ESD) from damaging your har dware. v When using a wrist strap, follow all electrical safety procedur es. A wrist strap is for static control.
a. T o identify the failing fan. press the fan identify button (A) , as shown in Figur e 10. An amber left or right fan-fault LED (C) on solid, as shown in Figure 1 1, indicates the faulty fan. b. Loosen the thumbscrew (A) that holds the fan in the power -supply assembly , as shown in Figure 1 1.
c. Use the recessed fan handle (B) to lift the fan fr om the power-supply assembly , as shown in Figure 1 1 on page 12. If you removed the power supply or fan as part of another service action, or if .
6. At the front of the expansion unit, slide the cable r etention bracket for the power supply that you want to remove, to the open position (A) . Disconnect the cable (B) as shown in Figur e 13.
9. Optional: If you want to remove a failing power -supply fan, complete the following steps: Note: If a fan fails, the amber fan fault LED on the front of the Of fline Converter Assembly (OCA) (B) , shown in Figure 15, is on solid. Figure 14. Removing a power supply Figure 15.
a. Identify the failing fan by pressing the fan identify button (A) shown in Figur e 15 on page 15. An amber left or right fan-fault LED (C) on solid, as shown in Figure 16, indicates the faulty fan. b. Loosen the thumbscrew (A) that holds the fan in the power -supply assembly , as shown in Figure 16.
If your system is managed by the IBM Systems Director Management Console (SDMC), use the SDMC to replace a power supply in the server . For instructions, see Replacing a part by using the Systems Director Management Console.
6. T o replace the power supply , with the locking handle (A) in the open position, push the power supply into the expansion unit as shown in Figure 18. 7. Close the locking handle (A) until the power supply locks into position. Figure 17. Replacing a fan Figure 18.
8. Reconnect the power cable (A) to the front of the power supply , and then slide the cable retention bracket (B) to the closed position to secure the cable as shown in Figur e 19. By moving the bracket to the closed position, you turn on the power supply .
Note: If you replaced a power -supply fan as part of this procedure, note the state of the fan fault LED (B) shown in Figure 21. If the LED is off, indicating that both fans are operating normally , continue to the next step. If not, remove the power -supply assembly from the expansion unit and repeat the pr ocedure starting with step 5 on page 17.
Related information Before you begin Replacing a power supply or fan in a 5802 or 5877 expansion unit with power turned off Learn how to replace a power supply or power -supply fan in a 5802 or 5877 expansion unit if you removed a failing part and want to r eplace the power supply assembly with the power turned off.
c. T ighten the thumbscrew (D) as shown in Figur e 22. 6. T o replace the power supply , with the locking handle (A) in the open position, push the power supply into the expansion unit as shown in Figure 23 on page 23. 7. Close the locking handle (A) until the power supply locks into position.
8. Connect the power cable (A) to the front of the power supply , and then slide the cable retention bracket (B) to the closed position to secure the cable as shown in Figur e 24. 9. Start the system, as described in Starting the system or logical partition.
10. Note the state of the green ac power in (A) and Of fline Converter Assembly (OCA) power (B) light-emitting diodes (LEDs) shown in Figure 25, and do one of the following actions, as applicable: v I.
11 . V erify the installed part, as described in V erifying the installed part. 12. Close the front rack door . Continue with any other service actions you need to perform.
5. At the rear of the expansion unit, disconnect both of the power cables, as shown in Figur e 27. 6. Attach the wrist strap. Attention: v Attach a wrist strap to an unpainted surface of your hardwar e to prevent electrostatic dischar ge (ESD) from damaging your har dware.
8. Loosen the thumbscrew (B) on the input power distribution assembly . Pull out the assembly from the expansion unit, as shown in Figure 29. Figure 28.
T o replace an input power distribution assembly , see “Replacing an input power distribution assembly in a 5802 or 5877 expansion unit with the power turned off.
6. Replace the input power distribution assembly cover , and then tighten the thumbscr ew (A) as shown in Figure 31. Figure 30. Replacing an input power distribution assembly Figure 31.
7. At the rear of the expansion unit, connect both of the power cables, as shown in Figur e 32. 8. Close the rear rack door . 9. Start the system, as described in Starting the system or logical partition. 10. V erify the installed part, as described in V erifying the installed part.
T o replace an input power distribution assembly in an expansion unit for a system that is not managed by the HMC or SDMC, complete the following steps: 1.
7. At the rear of the expansion unit, connect both of the power cables, as shown in Figur e 32 on page 30. Figure 34. Replacing an input power distribution assembly cover Figure 35.
8. Close the rear rack door . 9. Start the system, as described in Starting the system or logical partition. 10. V erify the installed part, as described in V erifying the installed part.
DANGER When working on or around the system, observe the following precautions: Electrical voltage and current from power , telephone, and communication cables are hazardous. T o avoid a shock hazard: v Connect power to this unit only with the IBM provided power cord.
Observe the following precautions when working on or around your IT rack system: v Heavy equipment–personal injury or equipment damage might result if mishandled. v Always lower the leveling pads on the rack cabinet. v Always install stabilizer brackets on the rack cabinet.
Blue or terra-cotta on a part of the hardwar e indicates a touch point where you can grip the hardwar e to remove it fr om or install it in the system, open or close a latch, and so on. T erra-cotta might also indicate that the part can be removed and r eplaced with the system or logical partition power on.
v A : Power-on button v B : Power LED – A constant light indicates full system power to the unit. – A blinking light indicates standby power to the unit. Note: There is appr oximately a 30-second transition period from the time the power-on button is pressed to when the power LED goes fr om blinking to solid.
Related concepts Identifying a failing part Use these instructions to learn how to locate and identify a failing part on your system or expansion unit using the appropriate method for your system.
Identifying a failing part in an IBM i system or logical partition Y ou can activate or deactivate the indicator light by using IBM i to assist in locating a failing part.
3. T ype your service tools user ID and service tools password on the System Service T ools (SST) Sign On display . Press Enter . Remember: The service tools password is case-sensitive. 4. Select Start a service tool from the System Service T ools (SST) display and press Enter .
4. Record the location information. Note: IBM provides har dware diagnostic aids and productivity tools, as well as installation aids for Linux operating systems on IBM Power systems.
Use these instructions to turn on the indicator light to help you physically locate a part by using the V irtual I/O Server (VIOS). 1. Log in as root user . 2. At the command line, type diagmenu and press Enter . 3. From the Function Selection menu, select T ask Selection .
v B : Power LED – A constant light indicates full system power to the unit. – A blinking light indicates standby power to the unit. Note: There is appr oximately a 30-second transition period from the time the power-on button is pressed to when the power LED goes fr om blinking to solid.
Starting a system or virtual server with the Systems Director Management Console Y ou can use the IBM Systems Director Management Console (SDMC) user interface to start the system or virtual server after the requir ed cables are installed and the power cables are connected to a power source.
Important: The system is equipped with a second power supply . Before continuing with this procedur e, ensure that all power sources to the system have been disconnected. (L003) or Stopping a system by using the Hardware Management Console Y ou can use the Hardwar e Management Console (HMC) user interface to stop the system or a logical partition.
3. In the Contents area, select the managed system. 4. Select T asks , then Operations , and then Power Off 5. Select the appropriate power -off mode and click OK .
Note: Replacing the shipping screws is optional but should be done in geographic ar eas that are prone to seismic activity . 4. While holding the system unit release latches (A) down on both the left and right sides, pull the system unit (B) out from the rack until the rails ar e fully extended and locked.
Placing the rack-mounted 8202-E4B or 8205-E6B system into the operating position Use this procedur e to place the rack-mounted system into the operating position. When placing the system into operating position, ensure that the cables at the back of the system do not catch or bind as you push the system unit back into the rack.
Removing and replacing covers for the 8202-E4B or 8205-E6B Use these instructions to r emove, replace, or install covers to access components or perform service. Removing the front cover on a rack-mounted 8202-E4B or 8205-E6B system Use this procedur e to remove the cover to access components or perform service.
Removing the front cover on a stand-alone 8202-E4B or 8205-E6B system Use this procedur e to remove the cover to access components or perform service. T o remove the fr ont cover , follow these steps: 1. Open the front door (A) by swinging it towar ds the left as shown in the following figure.
Installing the front cover on a rack-mounted 8202-E4B or 8205-E6B system Use this procedur e to install the cover to access components or perform service.
Installing the front cover and front door on a stand-alone 8202-E4B or 8205-E6B system Use this procedur e to install the cover to access components or perform service.
3. Hold the front door at an appr oximate 120 degree angle to the system as show in the following figure. Engage the latches. Removing the service access cover on a rack-mounted 8202-E4B or 8205-E6B system Use this procedur e to remove the service access cover .
Attention: When the service access cover is removed, the system powers down. Removing the service access cover on a stand-alone 8202-E4B or 8205-E6B system Use this procedur e to remove the service access cover . 1. Loosen the thumbscrew (A) located at the back of the outside cover .
3. Loosen the two thumbscrews (A) located at the back of the inside cover . 4. Slide the cover (B) toward the back of the system unit. When the fr ont of the service access cover has cleared the upper frame ledge, lift the cover up and of f the system unit.
Installing the service access cover on a rack-mounted 8202-E4B or 8205-E6B system Use this procedur e to install the service access cover . 1. Place the service access cover on top of the system, about 25 mm (1 in.) from the upper chassis ledge. 2. Hold the service access cover against the system unit and slide it toward the fr ont of the system.
5. Place the outside service access cover (A) on top of the system. 6. Hold the service access cover against the system unit and slide it toward the fr ont of the system.
Disconnecting the power cords from the 8202-E4B or 8205-E6B system Use these procedur es to disconnect the power cords from the 8202-E4B or 8205-E6B system. 1. For a rack-mounted system, open the back rack door on the unit you are servicing and identify the system unit you are servicing in the rack.
Figure 52. Removing the power cords for a rack-mounted system Figure 53. Removing the power cords for a stand-alone system Power supplies 59.
Connecting the power cords to the 8202-E4B or 8205-E6B system Use this procedur e to connect the power cords. 1. Identify the system unit you are servicing in the rack. 2. Connect all power cords to the unit you ar e servicing. Ensure that the cords ar e threaded thr ough the handles.
Note: The HMC might open external instructions for installing the featur e. If so, follow those instructions to install the featur e. Installing a part by using the Systems Director Management Console.
v Y es: The new device is installed corr ectly . Exit the diagnostic programs and return the system to normal operations. V erify the replacement part by using AIX: T o verify the operation of a newly installed feature or r eplacement part, follow these steps: 1.
v Y es: Select Log Repair Action , if not pr eviously logged, from the T ask Selection menu to update the AIX error log. If the r epair action was reseating a cable or adapter , select the r esource associated with that repair action.
V erifying the installed part in an IBM i system or logical partition If you have installed a new feature or part, verify that the system r ecognizes the feature or part by using the IBM i system service tools. T o verify the installed part, follow these steps: 1.
v Failing item list 9. Select option 2 (Display failing item information) to display the service action log entry . 10. Select option 2 (Display details) to display location information for the failing part to be replaced.
T ip: If a service request number (SRN) or other r eference code is displayed, suspect a loose adapter or cable connection. Note: If you received an SRN or any other r eference code when you attempted to start the system, contact your service provider for assistance.
6. Click Close Event . 7. Add comments for the serviceable event. Include any unique additional information. Click OK . 8. Did you replace, add, or modify a field r eplaceable unit (FRU) of the open service action event? v No : Select the No FRU Replaced for this Serviceable Event option, and click OK to close the service action event.
v Identify LED for an enclosure If you want to add an adapter to a specific drawer (enclosure), you need to know the machine type, model, and serial number (MTMS) of the drawer .
6. When you are finished, click Cancel twice to close the Serviceable Event Details window and the Serviceable Event Overview window . V erifying the installed part by using Systems Director Managemen.
v An indication that you cannot activate the system attention LED. 4. Select one of the virtual servers, and select Deactivate System Attention LED . A confirmation window is displayed that provides the following information: v A verification that the system attention LED was deactivated.
v V erifying the replaced part using VIOS V erify the installed feature by using VIOS: 1. Log in as root user . 2. At the command line, type diagmenu and press Enter . 3. Select Advanced Diagnostics Routines and press Enter . 4. From the Diagnostic Mode Selection menu, select System V erification and press Enter .
b. Select Commit . c. Follow any instructions that ar e shown. d. I fa Do you want to review the previously displayed err or? message is shown, select Ye s and press Enter . e. If an SRN is shown, suspect a loose card or connection. If no obvious pr oblem is shown, record the SRN and contact your service provider for assistance.
a. From the Resource Repair Action menu, select the par ent or child of the resource that has been replaced. If the r epair action was to reseat a cable or adapter , select the resour ce associated with that repair action. If the r esource associated with your action does not appear on the Resource List, select sysplanar0 .
4. Choose from the following options: v If the original problem was a failing disk drive that contained the operating system softwar e, go to step 5. v If the original problem was that the operating system would not load and you have another FRU to r eplace, go to your FRU locations section to locate the next FRU.
Perform the following steps: 1. If the system is not powered on, power it on now . 2. Perform a slow boot. 3. W ait until the AIX operating system login pr ompt displays or until system activity on the operator panel or display apparently has stopped.
Ye s Use the Log Repair Action option, if not previously logged, in the T ASK SELECTION menu to update the AIX error log. If the repair action was r eseating a cable or adapter , select the resour ce associated with that repair action. If the resour ce associated with your action is not displayed on the resour ce list, select sysplanar0 .
1. From the RESOURCE REP AIR ACTION menu, select the parent or child of the resour ce that has been replaced. If the r epair action was reseating a cable or adapter , select the resource associated with that repair action. If the r esource associated with your action is not displayed on the resour ce list, select sysplanar0 .
Y es: Continue with the next step. No: Continue with step 6. 4. Select the IPL type and mode for the system or logical partition that the customer uses (see IPL type mode and speed options in the Service functions). 5. Start an IPL by powering on the system or partition (see Powering on and powering off).
Y es: Perform the verification pr ocedures in the Service functions to verify that the pr oblem is corrected. After the verification test is complete, the tape device description will be set to the failed state because a resour ce change was detected.
v If the repair was done using the HMC online r epair procedures, ensur e that the original serviceable event is now closed. 1. Is a management console used to manage the server that you are servicing? v Y es: Continue with the next step. v No: Return to the “V erifying a repair” on page 73.
v Return the server to the state that the customer normally uses such as IPL type, IPL mode, and the way the system is configured or partitioned. Attention: Before r eturning the system to the customer , remove the system from service mode. If the system is left in service mode, it automatically places a call for service every two hours.
v Y es: Continue with the next step. v No: Go to step 1 1. 9. Is the FRU list identical (same FRUs, same number of FRUs, and same order of FRUs) to the FRU list of the error code r ecorded in step 1 on page 81? v Y es: Go to step 1 1. v No: Continue with the next step.
19. Add comments for the serviceable event. Include any unique additional information. Click OK . The following steps will add or update FRU information. 20. Did you replace, add, or modify a FRU of the open service action event? v Y es: Continue with the next step.
1. Press Enter . 2. Select the T ask Selection option. 3. Select the Log Repair option. 4. Select the resour ce associated with the repair action. If the r epair action was reseating a cable or adapter , select the resource associated with that repair action.
1. Press Enter . 2. Select the T ask Selection option. Note: If the terminal type is not defined, you are pr ompted to define it before you can pr oceed.
2. Do you have any field-replaceable units (FRUs) (for example car ds, adapters, cables, or devices) that were r emoved during problem analysis that you want to put back into the system? Note: If the .
1. If the system supports slow boot (see Performing a slow boot), do a slow boot on the system. If the system does not support slow boot, do a normal boot. 2. Power on the system. 3. W ait until the AIX operating system login pr ompt displays or until system activity on the operator panel or display apparently has stopped.
If the resour ce associated with your action is not displayed on the resour ce list, select sysplanar0 . Note: If the system attention indicator is on, this will set it back to the normal state.
Did you perform service on a RAID subsystem involving changing of the PCI RAID adapter cache card or changing the configuration? Note: This does not refer to the PCI-X RAID adapter or cache. v Y es: Continue with the next step. v No: Go to step 16. 15.
3. Are ther e any service action events that are open? v Y es: Continue with the next step. v No: If the system attention LED is still on, turn off the LED as described in “Activating and deactivating LEDs” on page 93. Return the system to the customer .
v Y es: Continue with the next step. v No: Go to step 17. 13. Have you begun a list of A xx partitions from prior service action events that you pr ocessed in this maintenance analysis procedur e (MAP)? v Y es: Go to step 15. v No: Continue with the next step.
v Y es: Continue with the next step. v No: Go to step 30. 24. Is the error class r ecorded in step 23 on page 91? v Y es: Continue with the next step. v No: Go to step 30.
32. Perform the following steps for each entry in the list of A xx partitions you began recor ding in step 14 on page 91, except the partition you were using to debug the original pr oblem. 33. From the IVM virtual terminal window of a partition in the list of A xx partitions, type diag at the AIX command prompt.
v “Activating or deactivating an identify LED using the Advanced System Management Interface” on page 96 Deactivating a system attention LED or partition LED using the management console Y ou can .
v Identify LED for a FRU associated with a specified enclosure If you want to hook up a cable to a specific I/O adapter , you can activate the LED for the adapter , which is a field replaceable unit (FRU), and then physically check to see where you should hook up the cable.
Activating or deactivating an identify LED using the Advanced System Management Interface Y ou can activate or deactivate an identify LED using the Advanced System Management Interface (ASMI). Y ou can specify the location code of any indicator to view or modify its current state.
Notices This information was developed for products and services of fered in the U.S.A. The manufacturer may not of fer the products, services, or features discussed in this document in other countries. Consult the manufacturer's r epresentative for information on the products and services currently available in your ar ea.
This information is for planning purposes only . The information herein is subject to change before the products described become available. This information contains examples of data and reports used in daily business operations.
generates, uses, and can radiate radio frequency ener gy and, if not installed and used in accordance with the instruction manual, may cause harmful interfer ence to radio communications.
This is a Class A product based on the standard of the VCCI Council. If this equipment is used in a domestic environment, radio interfer ence may occur , in which case, the user may be required to take corrective actions.
Electromagnetic Interference (EMI) Statement - Korea Germany Compliance Statement Deutschsprachiger EU Hinweis: Hinweis für Geräte der Klasse A EU-Richtlinie zur Elektromagnetischen V erträglichkei.
V erantwortlich für die Einhaltung der EMV V orschriften ist der Hersteller: International Business Machines Corp. New Orchar d Road Armonk, New Y ork 10504 T el: 914-499-1900 Der verantwortliche Ans.
any radio or television interference caused by unauthorized changes or modifications to this equipment. Unauthorized changes or modifications could void the user's authority to operate this equipment. This device complies with Part 15 of the FCC rules.
Japanese Electronics and Information T echnology Industries Association (JEIT A) Confirmed Harmonics Guideline with Modifications (products greater than 20 A per phase) IBM T aiwan Contact Information.
Dieses Gerät ist berechtigt, in Über einstimmung mit dem Deutschen EMVG das EG-Konformitätszeichen - CE - zu führen. V erantwortlich für die Einhaltung der EMV V orschriften ist der Hersteller: International Business Machines Corp.
106 Power Systems: Power supplies for the 91 17-MMB or 9179-MHB.
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Printed in USA.
デバイスIBM 9179-MHBの購入後に（又は購入する前であっても）重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります：
IBM 9179-MHBをまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはIBM 9179-MHBの技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。IBM 9179-MHBの取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。IBM 9179-MHBで得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
IBM 9179-MHBを既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はIBM 9179-MHBの不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、IBM 9179-MHBに関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちIBM 9179-MHBデバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。
