IBM Thinkpad R32 Manual

							continuity for 0.1 ohm or less between the external
ground pin and frame ground.
b. The power cord should be the appropriate type as
specified in the parts listings.
c. Insulation must not be frayed or worn.
4. Remove the 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 unit for any obvious unsafe
conditions, such as metal filings, contamination, water
or other liquids, or signs of fire or smoke damage.
7. Check for worn, frayed, or pinched cables.
8. Check that the power-supply cover fasteners (screws
or rivets) have not been removed or tampered with.
Handling Electrostatic Discharge-Sensitive
Devices
Any computer part containing transistors or integrated
circuits ( ICs) should be considered sensitive to
electrostatic discharge (ESD). ESD damage can occur
when there is a difference in charge between objects.
Protect against ESD damage by equalizing the charge so
that the machine, the part, the work mat, and the person
handling the part are all at the same charge.
Notes:
1. Use product-specific ESD procedures when they
exceed the requirements noted here.
2. Make sure that the ESD protective devices you use
have been certified (ISO 9000) as fully effective.
When handling ESD-sensitive parts:
vKeep the parts in protective packages until they are
inserted into the product.
vAvoid contact with other people.
vWear a grounded wrist strap against your skin to
eliminate static on your body.
vPrevent the part from touching your clothing. Most
clothing is insulative and retains a charge even when
you are wearing a wrist strap.
vUse the black side of a grounded work mat to provide a
static-free work surface. The mat is especially useful
when handling ESD-sensitive devices.
vSelect a grounding system, such as those listed below,
to provide protection that meets the specific service
requirement.
Note:The use of a grounding system is desirable but
not required to protect against ESD damage.
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							–Attach the ESD ground clip to any frame ground,
ground braid, or green-wire ground.
–Use an ESD common ground or reference point
when working on a double-insulated or
battery-operated system.
–You can use coax or connector-outside shells on
these systems.
–Use the round ground-prong of the AC plug on
AC-operated computers.
Grounding RequirementsElectrical grounding of the computer is required for
operator safety and correct system function. Proper
grounding of the electrical outlet can be verified by a
certified electrician.
Laser Compliance Statement
Some IBM Personal Computer models are equipped from
the factory with a CD-ROM drive. CD-ROM drives are also
sold separately as options. The CD-ROM drive is a laser
product. The CD-ROM drive is certified in the U.S. to
conform to the requirements of the Department of Health
and Human Services 21 Code of Federal Regulations
(DHHS 21 CFR) Subchapter J for Class 1 laser products.
Elsewhere, the drive is certified to conform to the
requirements of the International Electrotechnical
Commission (IEC) 825 and CENELEC EN 60 825 for
Class 1 laser products.
When a CD-ROM drive is installed, note the following.
16ThinkPad R32 Series 
						

							CAUTION:
Use of controls or adjustments or performance of
procedures other than those specified herein might
result in hazardous radiation exposure.
O uso de controles, ajustes ou desempenho de
procedimentos diferentes daqueles aqui especificados
pode resultar em perigosa exposição à radiação.
Pour éviter tout risque d’exposition au rayon laser,
respectez les consignes de réglage et d’utilisation des
commandes, ainsi que les procédures décrites.
Werden Steuer- und Einstellelemente anders als hier
festgesetzt verwendet, kann gefährliche
Laserstrahlung auftreten.
L’utilizzo di controlli, regolazioni o l’esecuzione di
procedure diverse da quelle specificate possono
provocare l’esposizione a
El uso de controles o ajustes o la ejecución de
procedimientos distintos de los aquí especificados
puede provocar la exposición a radiaciones
peligrosas.
Opening the CD-ROM drive could result in exposure to
hazardous laser radiation. There are no serviceable parts
inside the CD-ROM drive.Do not open.
Some CD-ROM drives contain an embedded Class 3A or
Class 3B laser diode. Note the following.
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							DANGER
Laser radiation when open. Do not stare into the
beam, do not view directly with optical instruments,
and avoid direct exposure to the beam.
Radiação por raio laser ao abrir. Não olhe fixo no
feixe de luz, não olhe diretamente por meio de
instrumentosóticos e evite exposição direta com o
feixe de luz.
Rayonnement laser si carter ouvert.Évitez de fixer
le faisceau, de le regarder directement avec des
instruments optiques, ou de vous exposer au
rayon.
Laserstrahlung bei geöffnetem Gerät. Nicht direkt
oderüber optische Instrumente in den Laserstrahl
sehen und den Strahlungsbereich meiden.
Kinyitáskor lézersugár!Nenézzen bele se szabad
szemmel, se optikai eszközökkel. Kerülje a
sugárnyalábbal valóérintkezést !
Aprendo l’unitàvengono emesse radiazioni laser.
Non fissare il fascio, non guardarlo direttamente
con strumenti ottici e evitare l’esposizione diretta al
fascio.
Radiaciónláser al abrir. No mire fijamente ni
examine con instrumentalóptico el haz de luz.
Evite la exposición directa al haz.
18ThinkPad R32 Series 
						

							General Descriptions
This chapter includes descriptions for any ThinkPad model
that has the PC-Doctor DOS diagnostics program. Some
descriptions might not apply to your particular computer.
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							Read this first
Before you go to the checkout guide, be sure to read this
section.
Important Notes:
vOnly certified trained personnel should service the
computer.
vRead the entire FRU service procedures before
replacing any FRUs.
vUse new nylon-coated screws when you replace
FRUs.
vBe extremely careful during write operations such
as copying, saving, or formatting.Drives in the
computer that you are servicing might have been
rearranged or the drive startup sequence might have
been altered. If you select an incorrect drive, data or
programs could be overwritten.
vReplace FRUs only for the correct model.When you
replace a FRU, make sure that the model of the
machine and FRU part number are correct by referring
to the FRU parts list.
vA FRU should not be replaced because of a single,
unreproducible failure.Single failure can occur for a
variety of reasons that have nothing to do with a
hardware defect, such as: cosmic radiation, electrostatic
discharge, or software error. FRU replacement should
be considered only when a recurring problem exists. In
this case, clear the error log and run the test again. Do
not replace FRUs if log errors do not reappear.
vBe careful not to replace a non-defective FRU.
What to do first
The servicer must include the following in the parts
exchange form or parts return form that is attached to the
returned FRU:
1. Name and phone number of servicer
2. Date of service
3. Date when part failed
4. Date of purchase
5. Failure symptoms, error codes appearing on display,
and beep symptoms
6. Procedure index and page number in which failing FRU
was detected
7. Failing FRU name and part number
8. Machine type, model number and serial number
9. Customer’s name and address
20ThinkPad R32 Series 
						

							Before checking problems with the computer, determine
whether the damage is covered under the warranty by
referring to the following:
Note for Warranty:For Warranty:
During the warranty period, the customer may be
responsible for repair costs if the computer damage
was caused by misuse, accident, modification,
unsuitable physical or operating environment, or
improper maintenance by the customer. The
following list provides some common items that are
not covered under warranty and some symptoms
that may indicate the system was subjected to
stresses beyond normal use.
The following is not covered under warranty:
vLCD panel cracked by applying excessive force
or by being dropped.
vScratched (cosmetic) parts.
vCracked or broken plastic parts, broken latches,
broken pins, or broken connectors caused by
excessive force.
vDamage caused by liquid spilled into the system.
vDamage caused by improperly inserting a PC
Card or installation of an incompatible card.
vDamage caused by foreign material in the FDD.
vDiskette drive damage caused by pressing the
diskette drive cover or inserting diskettes with
multiple labels.
vDamaged or bent diskette drive eject button.
vCD-ROM/DVD-ROM drive damage caused by
excessive force, shock, or by being dropped.
vFuses blown by attaching a nonsupported device.
vForgotten computer password (making the
computer unusable).
The following symptoms might indicate damage
caused by non-warranted activities:
vMissing parts may be a symptom of unauthorized
service or modification.
vHDD spindles can become noisy if subjected to
excessive force or by being dropped.
vI9990303 errors can be caused by exposure to
strong magnetic fields.
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							FRU replacement notices
This section contains notices for removal and replacement.
Read this section carefully before replacing any FRU.
LCD replacement notice
The TFT LCD for the computer contains many thin-film
transistors (TFTs). A small number of missing, discolored,
or lighted dots (on all the time) is characteristic of TFT
LCD technology, but excessive pixel problems can cause
viewing concerns. The LCD should be replaced if the
number of missing, discolored, or lighted dots in any
background is:
vXGA : 8 or more bright dots, 8 or more dark dots, or a
total of 9 or more bright and dark dots.
Screw notices
This computer uses special nylon-coated screws with the
following characteristics:
vThey maintain tight connections.
vThey do not easily come loose, even with shock or
vibration.
vThey need additional force to tighten.
vThey should be used only once.
Do the following when you service this machine:
vKeep the screw kit (P/N 08K6560) in your tool bag.
vAlways use new screws if you are instructed.
vUse a torque screwdriver if you have one.
Loose screws can cause a reliability problem. The IBM
ThinkPad computer addresses this problem with
nylon-coated screws. Tighten screws as follows:
vPlastic to plastic
Turn an additional90 degreesafter the screw head
touches the surface of the plastic part:
vLogic card to plastic
22ThinkPad R32 Series 
						

							Turn an additional180 degreesafter the screw head
touches the surface of the plastic part:
vTorque driver
If you have a torque driver, refer to the″Torque″column
with each step.
vMake sure you use the correct screw, and tighten all
screws firmly to the torque shown in the table if you
have a torque screwdriver.Never use a screw that you
removed. Use a new one. Make sure the screws are
tightened firmly.
System board/LCD/Inverter replacement
notice
Restoring the LCD panel IDThe EEPROM on the inverter stores its supported LCD
type ID code. If you replace a LCD with one of a different
brand or use a new inverter, the ID information in the
inverter EEPROM should be updated.
Follow the steps blew to set the LCD panel ID:
1. Install the ThinkPad Maintenance Diskette and restart
the computer.
2. When the IBM logo is displayed, press the″ESC″key
few times until BIOS copyright and diagnostics screen
appears.
3. Select1. LCD Panel ID Utilityfrom the main menu.
4. Follow the instruction on screen to read current or to
set new LCD Panel ID code.
5. Restart computer : the new LCD should work normally.
Note:When you set a new LCD Panel ID and the new
LCD is not yet enabled (to function), so connect an
external CRT to see the program execution process.
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							CAUTION:
Make sure the new ID code you choose corresponds
with the LCD brand and type. If you write a wrong ID
into inverterm, just reboot and re-execute the program
and input the correct ID code.
Note:If LCD cannot display after change ID code, make
sure you write the correct ID code, or try reseating
the LCD coaxtial cable connectors.
Thermal SensorThe system is equipped with sensors to protect against
system overheating. By setting system and processor
thermal thresholds, the system can turn on the cooling fan
or shut down automatically when temperatures reach the
defined threshold parameters.
System experiencing frequent auto sensor shutdown may
need to reset the thermal sensor threshold and execute
the fan test to ensure the normal operation of the cooling
fan.
Follow the steps below to set thermal threshold:
1. Install the ThinkPad Maintenance Diskette and restart
the computer.
2. When the IBM logo is displayed, press the″ESC″key
few times until BIOS copyright and diagnostics screen
appears.
3. Select2. Thermal Sensor Utilityfrom the main menu.
4. Select1. Read Thermal Settingto view the original
setting or2. Set Default Thermal Settingto restore the
default setting.
Serial number of the system unitWhen the computer was manufactured, the EEPROM on
the system board was loaded with the serial numbers of
the system and all major components. These numbers
need to remain the same throughout the life of the
computer.
If you replace the system board, you must restore the
serial number of the system unit to its original value.
Before replacing the system board, save the original serial
number by doing the following:
1. Install the Maintenance Diskette and restart the
computer.
2. When the IBM logo is displayed, press the″ESC″key
few times until BIOS copyright and diagnostics screen
appears.
3. Select2.VPD Utility from the main menu.
24ThinkPad R32 Series