Differences between version 3 and predecessor to the previous major change of ThinkpadNotes.
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| Newer page: | version 3 | Last edited on Saturday, December 11, 2004 10:49:30 am | by HermodPedersren | Revert |
| Older page: | version 1 | Last edited on Tuesday, March 16, 2004 11:15:36 am | by JohnMcPherson | Revert |
@@ -1,7 +1,7 @@
The thinkpads are a series of laptops made by [IBM]. The older 600 series used [Intel] [Pentium]2 processors.
-!!Sound
+!
!!Sound
! Thinkpad 600E
The sound-card on a Thinkpad 600E needs the snd-cs4236 module if using [ALSA], despite the card claiming to be a 46xx (and using a module named cs4232 in the older [OSS] driver series).
(Maybe check out AlsaNotes).
@@ -22,9 +22,33 @@
! [IBM] Thinkpad Laptop External Microphone
Some (or all?) thinkpads (such as my Thinkpad 600) have non-standard microphone sockets. They expect an external microphone to either be powered, or to make contact with a metal ring surrounding the socket, which supplies +5V, and give it to the "tip" of the jack. This is discussed at [http://www.pc.ibm.com/qtechinfo/LWIK-3QZJKZ.html?up=unknownuser]. If you plug in a regular, un-powered microphone then nothing will happen.
! [IBM] Thinkpad Simple Boot
-Thinkpads in the 600-770 series have a "simple boot" flag which is really a PNP OS=no flag. You should ''disable'' it for Linux 2.4, at least if you want the sound to work. Change the BIOS by pressing and holding F1 ''before'' you power up the machine, and hold it until the BIOS screen appears. The simple boot flag is under the Quick Boot icon. '' My sound works ok with this enabled, but see below'' -- JohnMcPherson
+Thinkpads in the 600-770 series have a "simple boot" flag which is really a PNP OS=no flag. You should ''disable'' it for Linux 2.4, at least if you want the sound to work. Change the BIOS by pressing and holding F1 ''before'' you power up the machine, and hold it until the BIOS screen appears. The simple boot flag is under the Quick Boot icon. ''
+!!!Flat [BIOS] battery
+__Note__: these notes are for a Thinkpad 600. Other models might have completely different codes, case layout, and battery part number!
+
+If you get error numbers on boot such as
+ 00173
+ 00192
+ 00163
+Then it appears you have a flat [BIOS] battery. (Most computers have a small battery to remember settings about the HardDrive etc when the power is off).
+
+To remove the old battery, first remove the cover for the memory bay by loosening the screw shown in the picture:
+[http://www.wlug.org.nz/archive/images/tp600-cover.jpg]
+
+To remove the battery, remove the plug and gently slide the battery out of its plastic holder, shown in the picture:
+[http://www.wlug.org.nz/archive/images/tp600-battery.jpg]
+
+When you remove the battery, you can see on it:
+
+ [IBM] part number 02K6486
+ fru p/n 02k6502
+
+It is a standard Panasonic CR2025 lithium battery, with the leads attached by a neat heat-shrink tubing.
+
+When you plug in the replacement, make sure that the plug is the correct orientation! Black wire closest to the edge of the bay,
+red wire closest to the memory slots.
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CategoryLaptopNotes
