On Feb 6, 2010, at 6:56 PM, Caleb Cupples wrote: > On Sat, Feb 6, 2010 at 2:55 PM, Jim Scott <[email protected]> wrote: >> What you're looking for is a PAV board (power/analog/video) that mounts >> underneath the CRT on top of the perforated aluminum divider panel. Most >> PAVs I've seen for sale on eBay come with the big silver video board thingie >> attached via cables. The PAV is not the upconverter board, which is directly >> attached to the logic board (on the bottom side of the aluminum divider >> panel). >> >> Note that there are two PAV boards for the G3 slotload iMacs. There were >> providers of CRTs, LG and CPT. The LG name is embossed into the black >> plastic molding on the CRT neck. The CPT molding on the CRT neck has no >> identifying name at all. >> >> Here's what the service manual says about identifying the boards: >> >> There are two power/ >> analog/video boards in >> service stock. The part >> numbers are 661-2465 and >> 661-2466. These boards >> must be exchanged like-for like. >> The 661-2465 board can be >> identified by the presence of >> a switch at location SW901, >> located near the flyback >> transformer. >> >> Here are the switch instructions: >> >> If the computer has the >> analog board with the >> switch, the switch must be >> set for the type of the CRT >> (LG or CPT) tube in the >> computer. >> If the power/analog/video >> board or the CRT are >> replaced, make sure to set >> the switch to the >> appropriate position. >> >> So, if you've got an LG CRT, either PAV assembly will work. Just slide the >> switch on the 661-2465 to the end marked LG. If you've got a CPT CRT, you >> must have the 661-2465 board; the 661-246 board will not work. >> You can easily determine which CRT and PAV board you've got by shining a >> bright light through the case in the area underneath the handle. >> >> Good luck ... and check back with us for proper CRT discharge procedures >> since I'm sure you don't want to get zapped. > > Thanks, I'm now looking for the 661-2465 board, simply because I don't > know which one it is, so I think it's easier to go with the one that's > guaranteed to work. Fortunately, I've spent a lot of time lately > inside of my SE/30, so I think I have the procedure down pretty well, > I think. > > So, any clues on how much this board will hurt my wallet?
Here's one that's a Buy It Now on eBay for $39.95. Other prices range up to $80. The second photo down shows the LG CPT switch in the upper right corner. <http://cgi.ebay.com/Apple-iMac-G3-Analog-Video-Board-Ching-Sheng-820-1145_W0QQitemZ200404262887QQcmdZViewItemQQptZMotherboards?hash=item2ea9065fe7#ht_5093wt_1167> Happy bidding! Jim Scott -- You received this message because you are a member of the iMac Group, a group for those using Apple iMacs and eMacs. The list FAQ is at http://lowendmac.com/imac/list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] To leave this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/imaclist
