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Service Hints & Tips |
Document ID: DETR-442MLU |
Aptiva - 2140/2142 Diagnostics - Power Supply
Applicable to: World-Wide
001
û Check all drive and power supply connections for proper installation.
û Power-off the system unit.
û Check the power cord for continuity. Replace if necessary.
û Check for the correct line voltage from the power outlet, and verify that the voltage selector switch (if present) is set for the correct voltage.
û Power-on the system unit.
002 - DOES THE POWER SUPPLY FAN RUN? (Yes - Go to Step 008, No - Go to Step 003.)
003
û Disconnect the power cord from the back of the system unit.
û Disconnect all power and switch cable connectors from the system board and the power supply.
û Disconnect the power connectors to all drives.
û Locate the power supply on/off cable connector (three-wire connector) and make a connection (jumper) between the black and white wires.
û Reconnect the power cord.
004 - DOES THE POWER SUPPLY FAN RUN? Yes - Go to Step 005 No - Replace the power supply.
005
û With the system powered on and the power supply fan running, check the voltages at the power supply connectors for the system board and all drive connectors, as shown in the following figures.
006 ARE THE VOLTAGES CORRECT AND DOES THE FAN RUN? (Yes - Go to Step 007, No - Replace the power supply.)
007
û The power supply is working normally. (If you suspect the on/off switch cable assembly, see Step 008.) If the fan continues to run when all connectors are plugged back in, go to "Undetermined Problem" 
. If the fan stops running when a drive connector is plugged back in, go to "Factory-Installed Drive Devices" .
008
DOES THE SYSTEM UNIT FAIL TO SHUT OFF WHEN THE ON/OFF SWITCH IS PRESSED? (Yes - Go to Step 009, No - Go to Step 006)
009
û You might have a failing on/off switch cable assembly.
û Disconnect the on/off switch cable assembly connector from the power supply connector and take an ohm reading.
010 - DO YOU HAVE AN OHM READING WHEN THE SWITCH IS PRESSED AND AN OPEN READING WHEN THE SWITCH IS RELEASED? (Yes - Go to step 011, No - Go to step 012.)
011
û Replace the on/off switch cable assembly.
011
û Replace the system board.
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Hint Category |
Diagnostics, Power | |
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Date Created |
11-01-99 | |
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Last Updated |
12-01-99 | |
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Revision Date |
12-01-2000 | |
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Brand |
IBM Aptiva | |
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Product Family |
Aptiva | |
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Machine Type |
2140, 2142 | |
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Model |
all | |
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TypeModel |
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Retain Tip (if applicable) |
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