General Checkout
(Type 62XX/65XX/68XX): This general
checkout procedure is for Type 62XX, 65XX and 68XX computers.
If you are servicing a type 6876 or type 6886 Micro Channel
computer, see General Checkout (Type
6876/6886).
Attention: The drives in the
computer you are servicing might have been rearranged or the
drive startup sequence changed. Be extremely careful during
write operations such as copying, saving, or formatting. Data
or programs can be overwritten if you select an incorrect
drive.
Diagnostic error
messages appear when a test program finds a problem with a
hardware option. For the test programs to properly determine
if a test Passed, Failed , or Aborted , the test programs
check the error-return code at test completion. See Return
Codes.
General error messages appear if a problem or
conflict is found by an application program, the operating
system, or both. For an explanation of these messages, refer
to the information supplied with that software
package.
NOTES:
- Before replacing
any FRUs, ensure the latest level of BIOS is installed on
the system. A down-level BIOS might cause false errors and
unnecessary replacement of the system board. For more
information on how to determine and obtain the latest level
BIOS, see BIOS Levels.
- If
multiple error codes are displayed, diagnose the first error
code displayed.
- If the
computer hangs with a POST error, go to Symptom-to-FRU
Index.
- If the
computer hangs and no error is displayed, go to Undetermined
Problem.
- If an
installed device is not recognized by the diagnostics
program, that device might be defective.
General
Checkout
- Power
off the computer and all external devices.
Check all
cables and power cords. Set all dispaly controls to the
middle position. Insert the diagnostics diskette into
drive A. Power on all external devices. Power on the
computer. Check for the following responses:
- One
or two beeps (depending on the diagnostics version
level)
- Readable instructions or the main menu.
Did you
recieve the correct responses? Yes
- Proceed to Step 3 No - Step
2
- If
rapid resume is displayed, do the following:
- Disable Rapid Resume
- Run
the diagnostics tests
- Enable Rapid Resume after service is
complete.
-or-
- If
the computer hangs during Rapid Resume, do the
following:
- Power off; then, power on the computer
- When the hard disk drive activity light comes on,
press the CTRL, ALT, and DEL
buttons simultaneously to exit Rapid Resume and restart
the computer. (Rapid Resume is now turned off.)
- Are all
installed devices in the computer highlighted on the module
test menu or hardware configuration report?
Yes - Proceed to step 5. No - Step
4.
- Go to the Module Test
Menu and Configuration Report on page 19 of the
HMM.
- Run the
Advanced Diagnostics test. If necessary, refer to
Diagnostics and Test Information. If you receive an error,
go to Symptom-to-FRU Index. If the test stops and you cannot
continue, replace the last device tested. If the computer
has incorrect keyboard responses, go to Keyboard. If the
printer has incorrect responses, go to Printer. If the
display has problems such as jittering, rolling, shifting,
or being out of focus, go to Display.
|