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35.235 bytes |
Service Hints & Tips |
Document ID: RJJR-3PWR3E |
TP 560X - CheckOut guide
Applicable to: World-Wide
The following information is intended for IBM Dealers and Authorized Servicers only. Customers attempting to follow any of the procedures below may void their warranty.
Use the following procedure as a guide for computer problems. The diagnostic tests are intended to test only IBM products.
1. Obtain the failing symptoms in as much detail as possible.
2. Verify the symptoms by attempting to re-create the failure by running the diagnostic test or by repeating the same operation.
3. Use the following table with the verified symptom to determine which page to go to. Search the symptoms column, and find the description that best matches your symptom; then go to the page shown in the Go To column.
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Symptoms (Verified) |
Go To |
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Power failure. (The |
Power Systems |
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POST does not |
Symptom-to-FRU |
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POST beeps, but no |
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POST detected an error |
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The diagnostic test |
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The configuration is not |
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Other symptoms (such |
Symptom-to-FRU |
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Symptoms cannot be |
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Diskette Drive Checkout
Do the following to isolate the problem to a controller,drive, or diskette. A scratch, write-enabled, nondefective
2HD diskette is required. FDD-1 represents an external diskette drive attached through the external
diskette drive connector. FDD-2 represents the external diskette drive attached to the port replicator.
Attention:
Make sure the diskette does not have more than one label attached to it. Multiple labels can cause damage
to the drive or cause the drive to fail. Do the following to select the test device. See Running the Diagnostics
on page 47 for details.
1. Go to the advanced diagnostic mode by pressing Ctrl+A from the test menu of the Easy-Setup.
2. Click on Exit twice.
3. Click on FDD-1 or FDD-2 to start the test.
4. Insert the blank diskette when instructed and follow the instructions on the screen.
5. If the controller test detects an error, FRU code 10 appears. Replace the system board.
6. If the controller test runs without errors, the drive read/write tests start automatically. If a drive test
detects an error, FRU code 50 for FDD-1 or 51 for FDD-2 appears. If the diskette itself is known to be
good, replace the drive.
7. If the FDD-2 test detects an error, move the drive to the computer's diskette drive connector directly, if
possible, and test it again as FDD-1. If no errors occur in the FDD-1 position, the drive is
not defective. Go to Port Replicator Checkout on page 29 to isolate the port replicator problem.
Keyboard or Auxiliary Input Device Checkout
Remove the external keyboard if the internal keyboard is to be tested.
If the internal keyboard does not work or an unexpected character appears, make sure that the flexible cable
extending from the keyboard is correctly seated in the connector on the system board. If the keyboard
cable connection is correct, run the Keyboard Test. See Running the Diagnostics on page 47 for details.
Note: When the Fn key is pressed, a black square briefly appears. If the tests detect a keyboard problem, do the following one at a time to correct the problem. Do not replace a nondefective FRU:
Reseat the keyboard cable.
Replace the keyboard.
Replace the system board.
The following auxiliary input devices are supported for this computer:
Numeric keypad
Mouse (PS/2 compatible)
External keyboard (with keyboard/mouse cable)
If any of these devices do not work, reseat the cable connector and repeat the failing operation.
If the problem does not recur, recheck the connector.
If the problem is not corrected, replace the device and then the system board.
Memory Checkout
DIMM cards are available for increasing memory capacity.
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DIMM |
Displayed Value |
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No DIMM installed |
32192 KB |
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8 MB |
40384 KB |
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16 MB |
48576 KB |
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32 MB |
64960 KB |
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64 MB |
97728 KB |
Memory errors might stop system operations, show error messages on the screen, or hang the system. Use the following procedure to isolate memory problems.
Note: Make sure that the DIMM is fully installed into the connector. A loose connection can cause an error. See Running the Diagnostics on page 47 for details. If memory problems occur intermittently, use the loop option to repeat the test. When the test detects an error, an error log is printed on the printer connected to the parallel port. See Displaying the Error Log on page 48 for more information.
System Programs in Flash Memory: System setup programs and diagnostic tests are stored in the flash memory.
Flash Memory Update: The flash memory update is required for the following conditions:
New versions of system programs
New features or options
To update the flash memory, do the following:
1. Get the appropriate diskette containing the update.
2. Insert the System Program Service Diskette into drive A and power on the computer.
3. Select Update system programs from the menu.
Port Replicator Checkout
Use the following procedure to isolate a port replicator problem. The port replicator attaches to the system expansion connector at the bottom of the computer.
1. Power off the computer.
2. Remove the failing devices from the port replicator.
3. Unplug the AC adapter from the port replicator, if attached.
4. Remove the port replicator from the computer.
5. Reconnect the failing device directly to the computer.
(If another device is already connected to the computer, remove it first.)
6. Go to the Running the Diagnostics on page 47 and run the diagnostics.
7. If the advanced diagnostic device test did not find an error, suspect a problem with the port replicator of the system expansion bus.
8. Power off the computer and reconnect the port replicator.
9. Power on the computer and run the following advanced diagnostic tests:
Serial port test with the wrap plug (P/N 72X8546) installed on the port replicator
Universal serial bus test with the test cable (P/N 05K2580) [see Universal Serial Bus (USB) Test on page 48]
Parallel port test with the wrap plug (P/N 72X8546) installed on the port replicator
PC Card (PCMCIA) test with the PC test card (P/N 35G4703) installed FDD-2 device test on the failing device with a scratch diskette
10. If diagnostic errors appear, replace the port replicator or the diskette drive. If the problem remains after the replacement, replace the system board.
11. If power problem appears only when the port replicator is used, replace the port replicator. If power shutdown occurs intermittently when using PC Card devices via a port replicator, suspect an over-current problem. Some PC Card
devices use more power; if the maximum usage of each devices occurs simultaneously, the total current will exceed the limit, thereby causing a power shutdown. Isolate this problem by removing one of the devices, and use the computer under the same condition, and see whether a power shutdown occurs. Do this procedure for all devices to determine the cause.
Power Systems Checkout
To verify the symptom of the problem, power on the computer using each of the following power sources.
1. Remove the battery pack and diskette drive.
2. Connect the AC Adapter and check that power is supplied.
3. Disconnect the AC Adapter and install the charged battery pack; then check that power is supplied by the battery pack. If you suspect a power problem, see the appropriate power supply checkout in the following list:
Checking the AC Adapter
Checking Operational Charging on page 31
Checking the Battery Pack on page 31
Checking the Backup Battery on page 32
Checking the AC Adapter: You are here because the computer fails only when the AC Adapter is used:
If the power problem occurs only when the port replicator is used, replace the port replicator. If the power-on indicator does not turn on, check the power cord of the AC Adapter for correct continuity and installation. If the operational charge does not work, go to Checking Operational Charging on page 31. Unplug the AC Adapter cable from the computer and measure the output voltage at the plug of the AC Adapter cable. See the following figure:
(16 - 10 V)
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Pin |
Voltage (V dc) |
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1 |
+14.5 to +17.0 |
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2 |
Ground |
If the voltage is not within range, replace the AC Adapter.
If the voltage is within the range, do the following:
Replace the DC/DC card.
Replace the system board.
If the problem is not corrected, go to Undetermined Problems on page 46.
If the voltage is not correct, go to the next step.
Note: An audible noise from the AC Adapter does not always indicate a defect.
Checking Operational Charging: To check operational charging, use a discharged battery pack or a battery pack that has less than 50% of the total power remaining when installed in the computer. Perform operational charging. If the battery status indicator does not turn on, remove the battery pack and let it return to room temperature. Reinstall the battery pack. If the charge indicator still does not turn on, replace the battery pack. If the charge indicator still does not turn on, replace the DC/DC card. Then reinstall the battery pack. If the reinstalled battery pack is not charged, go to the next section.
Checking the Battery Pack: Battery charging will not start until the Fuel-Gauge shows that less than 95% of the total power remains; with this condition the battery pack will charge to 100% of its capacity. This protects the battery pack from being overcharged or having a shortened life.
Do the following:
1. Power off the computer.
2. Remove the battery pack and measure the voltage between battery terminals 1 (+) and 4 (N). See the following figure:
3. If the voltage is less than +11.0 V dc, the battery pack has been discharged. Recharge the battery pack. In this case, the battery pack is over-discharged. It takes at least 2 hours to recharge the battery pack even if the indicator does
not turn on. If the voltage is still less than +11.0 V dc after recharging, replace the battery.
4. If the voltage is more than +11.0 V dc, measure the resistance between battery terminals 3 and 4. The resistance must be 4 to 30 K ohm. If the resistance is not correct, replace the battery pack. If the resistance is correct, replace the DC/DC card. If the problem persists, replace the system board.
Checking the Backup Battery
1. Power off the computer and unplug the AC Adapter from the computer.
2. Turn the computer upside down.
3. Remove the DIMM cover and backup battery (see 1010 Backup Battery on page 60).
4. Measure the voltage of the backup battery. See the following figure.
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Wire |
Voltage (V dc) |
|
Black |
Ground |
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Red |
+2.5 to +3.7 |
If the voltage is correct, replace the system board. If the voltage is not correct, replace the backup battery.
If the backup battery discharges quickly after replacement, replace the system board.
Status Indicator Checkout If an LED problem occurs, do the following:
1. Power off the computer.
2. Power on the computer.
3. All the LEDs in the indicator panel should turn on for a moment after the computer is powered on. Make sure they turn on. If the problems persists, replace the system board.
System Board Checkout
The processing functions are performed by the system board. When a numeric code calls the system board as a FRU, use the following procedure to isolate the problem:
See Running the Diagnostics on page 47 for details.
1. Run the system board test to verify the symptom. This test verifies the system board. If no error is detected, return to Checkout Guide on page 26.
2. If FRU code 10 appears, replace the system board.
3. Rerun the test to verify the fix. If this procedure does not correct the problem, go to Undetermined Problems on page 46.
TrackPoint III Checkout
If the TrackPoint III does not work, check the configuration in the ThinkPad Configurations program. If the configuration of the TrackPoint III is disabled, select Enable to enable it. If this does not correct the TrackPoint III problem, continue
with the following. The TrackPoint III adjusts the pointer sensor automatically. During this process, the pointer moves on the screen automatically for a short time. This self-acting pointer movement can occur when a slight, steady pressure is
applied to the TrackPoint III pointer. You must readjust it if the temperature has exceeded its normal temperature range. This symptom does not indicate a hardware problem. No service actions are necessary if the pointer movement stops in a short period of time. If a click button problem or the pointing stick problem occurs, do the following:
1. Go to the Easy-Setup screen.
2. Select an item with the pointing stick.
3. Press either the left or right click button.
4. Verify that both buttons work correctly. If either the pointing stick or the click button do not work, do the following
actions one at a time to correct the problem. Do not replace a nondefective FRU:
Reseat the keyboard cables.
Replace the keyboard.
Replace the system board.
Power Management Features
Three power management modes are provided by the computer to reduce power consumption and prolong battery power.
Standby Mode: In standby mode the following occurs:
The LCD backlight turns off.
The hard disk drive motor stops.
Events that cause the computer to enter standby mode:
Standby is requested by the Fn key (Fn+F3).
There has been activity under auto-standby in the ThinkPad Configurations program.
The computer exits standby and resumes operation when any key is pressed.
Suspend Mode: In suspend mode, the following occurs, in addition to what occurs in standby mode:
The LCD is powered off.
The hard disk drive is powered off.
The CPU stops.
Events that cause the computer to enter suspend mode:
Suspend mode is requested by the Fn key (Fn+F4).
The LCD is closed.
The specified time has elapsed from the last operation with the keyboard, the TrackPoint III, the hard disk drive, the parallel connector, or the diskette drive; or the AC Adapter is plugged in. The time is specified by Suspend Timer
in the ThinkPad Configurations program. The battery condition is low. The battery power indicator blinks orange.
Either the PS2 OFF or PS2 SUSpend command is set in the ThinkPad Configurations program.
Notes:
1. In the ThinkPad Configurations program, the computer can be set to Will not suspend even if LCD is closed.
2. If the computer is powered on with ac power and it is used with one of the communication PC Cards, the computer enters standby mode; the PC Card and application program remain active.
3. The computer cannot enter suspend mode while a communication link is connecting.
The following events cause the computer to resume operation from suspend mode:
The LCD is opened.
The real time clock alarm is signaled.
The ring indicator (RI) is signaled by a serial device or PC Card device.
The Fn key is pressed.
An external keyboard key is pressed while the computer is operating with ac power.
The computer also exits suspend mode when timer conditions are satisfied for entering hibernation mode.
Hibernation Mode: In hibernation mode, the following occurs:
The system status, RAM, VRAM, and setup data are stored on the hard disk.
The system is powered off.
Note:
The computer cannot enter hibernation mode if it has been powered on with ac power and a communication PC Card is used.
The following events cause the computer to enter hibernation mode:
Hibernation mode is requested by the Fn key (Fn+F12).
Timer conditions are satisfied in suspend mode.
A critically low battery condition occurs.
The PS2 HIBernation command is set in the ThinkPad Configurations program.
The computer exits hibernation mode and resumes operation when the power-on switch is pressed. When power is turned on, the hibernation file in the boot record on the hard disk drive is read and system status is restored from the hard disk drive.
Port Replicator Power Overload: If a power shutdown occurs intermittently when PC Card devices are used with a port replicator, suspect an over-current problem. Some PC Card devices use much power; if the maximum usage of each device occurs simultaneously, the total current exceeds the limit, thereby causing a power shutdown. Isolate this problem by removing one of the devices, and use the computer under the same condition to see if a power shutdown occurs. Do this procedure for all devices to help determine the cause.
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Hint Category |
General Information | |
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Date Created |
19-12-97 | |
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Last Updated |
19-08-98 | |
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Revision Date |
17-08-99 | |
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Brand |
IBM ThinkPad | |
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Product Family |
ThinkPad 560X | |
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Machine Type |
2640 | |
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Model |
various | |
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TypeModel |
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Retain Tip (if applicable) |
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Reverse Doclinks |