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Hi everyone,
I have a TDK supply that has a really strong burning smell and gunk all over. I am going to send off for all the caps on the right side on Friday and give it a thorough clean. Just wondering if there is an issue with CR4 and what part it is, the smell seems to come from that part.
Hi everyone,
I was cleaning the Macintosh Classic II revision 1 logic board with a q-tip soaked in isopropyl alcohol and a chip I was cleaning came off the board, it read 136x 78l08a and I believe it is a texas instruments chip. I looked up the last part and it came up with voltage regulators...
I ordered Würth electrolytic caps for the system, I do have aluminium polymer and tantalum for the LC475 but my surface mount soldering isn't too good with my setup at home, so I thought these caps would make it easier. I did purchase solder paste though, im going to try that out for the LC475...
All the old caps were removed safely, board cleaned, ROM's cleaned, will replace caps next week with tantalum on my LC, Classic II and LC475 and retrobrite the LC's. Ill share the final results of all 3 in good time.
Hi everyone, just received an LC that has not been recapped or anything like that, appears to be all original. I replaced the leaky TDK supply with a working ASTEC one, cleaned the board, installed a new PRAM battery and system 7.1 onto the HDD.
Everything seems good except when I set volume to...
Secured
LC
IIci with a card of some sort inside
Securing
Powerbook G3 Bronze
2 x Powerbook G4 15" (pretty much secured)
Hopefully ill be able to find an Apple colour CRT.
This is what my plans are:
- Wash then recap the logic board with normal radial electrolytic caps.
- Recap analog board (already put fresh solder where it was needed and snipped JP1).
- Fix the small crack.
- Clean the fan, floppy drive and exterior.
Just received my Macintosh from the courier, it has a very small chip up the top left but everything else looks fine, it is 100-110v though so ill have to buy a step down converter.
Logic board looks like it needs a wash and recap, removing the battery was a good start, its great that it didn't...
Im going to eventually recap the powerbook LCD inverter, will probably do some ultrasonic cleaning on Monday if im allowed. I have about 4 boards that need cleaning, might as well get them cleaned properly.
The powerbook is 1 of 6 computers of mine that need repairs.
I pulled more things from the laptop today, should I recap the TDK CXA-2010 screen power board? Should I replace the caps on the board next to the panel its self and could I wash that board?
I got it working kind of, partially cleaned the board. I can move the mouse around but the screen flickers and has bad ghosting. Chimes too. HDD and floppy not doing anything.
Photo is what it looks like currently.
It did chime before and display a blank screen with a cursor, forgot to say. Ill wash it on Wednesday and report the results. My university has a classroom with facilities to bake boards, solder very tiny components and so on, I will take it there on Friday if Wednesday's clean isn't a success.
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