Lenovo ThinkPad 360, Hardware Maintenance Manual

Page: 35 / 508

General Checkout
Use the following procedure as a guide for computer
problems. The diagnostic tests are intended to test
only
IBM products. Non-IBM products, prototype cards, or
modified options can give false errors and invalid system
responses.
1. Obtain the failing symptoms in as much detail as
possible.
2. Verify the symptom. Attempt to recreate the failure
by running the diagnostic tests or retrying the same
operation.
Note: To run the diagnostics, refer to “How to Run
the Diagnostics” on page 45.
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.
Symptom Go to
Power failure. (The
power indicator does
not go on or stay on.) “Power Systems Checkout” on
page 29.
POST does not
complete. No
beeps/error code are
indicated. “Symptom-to-FRU Index” on
page 34, and then use the No
Beep Symptoms table.
POST beeps, but no
error codes are
displayed. “Symptom-to-FRU Index” on
page 34, and then use the Beep
Symptoms table.
POST detected an
error and displayed
numeric error codes. “Symptom-to-FRU Index” on
page 34, and then use the
Numeric Error Codes table.
The diagnostic test
detected an error and
displayed an FRU
code. “FRU Codes” on page 37.
The configuration is
not the same as the
installed devices. “Checking the Installed Devices
List” on page 46.
Other symptoms
(such as LCD display
problems). “Symptom-to-FRU Index” on
page 34, and then use the table
for related symptoms.
Symptoms cannot be
recreated.
(Intermittent
problems.) Use the customer reported
symptoms and go to
“Symptom-to-FRU Index” on
page 34.
ThinkPad 340x (IBM 2610)
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