Hi mart and Ken, Very grateful for the detailed instructions (never mind that the Multiscan won't work with a Mac II or IIx std. video card without a $40 adaptor). My 15" goes yellow after about 20 min. (due to heat?). Rarely goes into the 'red' phase, or even green. I spent Cdn. $85 "to change the analog board". Got the second built-in speaker to work for 20 days longer than the 90 day warranty. Live and learn. George PS: also heard that a PCB from an HP 14" can replace the 15" PCB - be brave. A local Mac hacker destroyed my Color Display by fiddling with the solder joints while attempting a 'transplant'. Monitors R Us, anybody?
--- mart <[EMAIL PROTECTED]> wrote: > Ken wrote: > >I have two of these monitors. One has intermittant > "no blue" signal and > >the other has constant "no red" signal. > > > >I know that these monitors have a "history" of bad > boards (solder > >joints?) > > > >Ken > > > >Use it up, wear it out, make it do or do without. > > Let's go for the 'make it do'. > > The parts that carry, process and amplify the R, G > and B signals are to be > inspected here. Follow the cables inside from the > connector to an area > where you find three similar groups of electronics: > the R, G and B > amplifiers. Maybe they are marked as such. Here, > very likely some solder > joints have cracked. > > On my monitor (other type) there were the following > defects, causing > similar problems (intermittand red or green only, or > nothing, or > everything, but only for 10 seconds): > > 1. bad Mac-to-mon video cable on 1 colour, to start > with > 2. bad signal cables on 2 colours inside the monitor > 3. cracked joints on 2 out 3 minuscule PCB's, > mounted perpendicular to main PCB > 4.bad signal cable, going from colour amplifiers to > tube neck. > > It took a few weekends... but once fixed, never had > a problem. > > I hope this gets you anywhere, > > -mart ===== /'\ ASCII Ribbon Campaign \ / No HTML/RTF in email X No Word docs in email / \ Respect for open standards Love your neighbour as yourself. (from Luke 10:27) __________________________________________________ Do You Yahoo!? Yahoo! Sports - live college hoops coverage http://sports.yahoo.com/ -- Vintage Macs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Enter To Win A | -- Canon PowerShot Digital Cameras start at $299 | Free iBook! | Support Low End Mac <http://lowendmac.com/lists/support.html> Vintage Macs list info: <http://lowendmac.com/lists/vintagemacs.shtml> The FAQ: <http://macfaq.org/> Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/vintage.macs%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
