Apple iie power supply repair

Try it with all cards removed, all disk drives detached, etc. Cr1 blinking indicates that the power supply is detecting a problem and shutting down then trying to restart. Apple macintosh color display video cable 6 5904161a rare for mac apple iigs. The only repair i had to do was to replace the power supply filter capacitor that had already exploded when i got the computer. The connector pins are identified in figure 111 and table 1. This apple e power supply is a repair for youtube user roadgeek. I have an apple ii and the power supply went pop as soon as it was plugged into the mains. Apple iie testing, cleaning and restoration youtube. Apple iie cleaning and repair apple ii computers atariage. It was a bit dirty but nothing that a brush, alcohol, a cloth and cotton sticks could not fix. It hasnt been used for 20 years so it was kind of expected. Same as original install at the best online prices at. Diagnostics lead me to believe the machine has a bad rom socket.

Other than that, no beep, no power light, just the expansion cards lone led. Nov 10, 20 after the seera, apple changed to the replace the mainboard policy, but repairs used to be done onsite. Among my dormant apple ii collections, my trusty enhanced iie, like many others, had its astec psu gone south years ago and was in storage since then. Find great deals on ebay for apple ii power supply and apple iie power supply. Apple iigs toolbox reference by inc staff apple computer hardcover. Repairing an old apple e 1984 element14 jeri ellsworth. In part one i do a teardown and cleanup then give a little history.

Power seems to get to an expansion card i have in the first slot. The messagepad is the first series of personal digital assistant devices developed by apple computer for the newton platform in 1993. Apple continued to produce and sell apple iie s up until 1993, extending the life of the apple ii series past 15 years. Apple iie power supply evox rifa repair capacitors. Difetto nessuna tensione di uscita e con il classico clicking degli alimentatori switching questo alimentatore funziona anche senza carico. If theres another place i should ask, please point me in the right direction.

Apple e psu repairrestoration for roadgeek youtube. If the 2012 macbook pro is the model without the retina display with the cddvd drive then. Make sure you discharge the 2 large filter caps on the high voltage side first. Apple part numbers include 69903, 69906, 6065001, 6055703, 8250510a and others as i come across them. Apple ii power supply repair help with an unknown machine and a blown fuse, i usually just change the fuse to see if someone did something stupid. Before you remove completely the power supply, unscrew the t5 screws on each side of the socket. I got a new x capacitor and new electrolytics on the input and output side. Ground any static electricity from your body and clothing onto the metal screening around the doorway. If any of your apple ii power supplies have any of the rifa x2 mkt capacitors like the one in the picture on the right, get it. Apple ii plus from 1982 teardown, repair, cleanup and. This power supply will work in the apple plus and e. But ibmstyle power supplies deliver 150200 watts of power, more than twice the weak output of the standard 60 watt apple ii power supply.

The devices were based on the arm 610 risc processor and all featured handwriting recognition software. The macbook air comes with a 45w magsafe power adapter and the inch macbook from 20062009 and t the macbook air comes with a 45w magsafe power adapter and the inch macbook from 20062009 and the inch macbook pro use the 60w power adapter. The pcb inside the supply is dated 1982, so the supply in itself is around 31 years old. Also a power supply is a power supply for the most part, being apple 2 specific doesnt overly make much difference other than the fact someone on that type of forum may have ran into it before. Sep 15, 2014 english apple iie power supply repair. Testing and cleaning up an apple iie from 1983 replacing the rifa capacitor in the power supply. Nothing at all happens but a click from the power supply when i flip the switch. To reach the motherboard you just have to open the lid, and to dismantle it you just have to.

Open the door at the rear of the case with a coin and swing it out of the way. I retainted this philosophy through to 2006, which is when i stopped doing apple service, as i didnt want to deal with intel systems, for component level repair was nexttoimpossible on them. Holts apple ii power supply uses a very simple design, with an offline flyback converter topology. Fyi theres another repair book, though its unlikely to help. Turn off the mains power at the wall, but leave the mains cable connected to wall socket or power strip and the imac. Replaced power supply and put the swap back into its original apple iie. With design improvements, the power required by disk. With design improvements, the power required by disk drives has been reduced. Your problem is probably best discussed in a forum with others experienced in hardware troubleshooting and repair, such as the facebook group apple ii enthusiasts or the usenet group comp. Cases vary, they wont have gouges or heavy yellowing. I removed the power supply, an astec aa11042c from an apple iie that may have been fitted to the machine as a replacement in the 1980s. Finding the chip with the bad connection can be a challenge, but if you are. Apple iic power converter replacement ifixit repair guide.

Buy apple power supply vintage computing and get the best deals at the lowest prices on ebay. Recently, i have offered these power supplies for apple ii. Sep 27, 2016 nothing at all happens but a click from the power supply when i flip the switch. Aug 25, 2018 testing and cleaning up an apple iie from 1983 replacing the rifa capacitor in the power supply. Since you dont know if the machine suddenly stopped working or it stopped working when they plugged in a bad card. In later versions like the apple iie this was recognized as a fail and the reset key was moved.

Apple iie power supply popped and now dead applefritter. Dead with clicking noise in background this power supply works even without load replaced parts. Basically most apple iis and apple iiplus machines that dont work correctly, can be repaired by reseating chips that arent making good connections with their sockets. Grab the back of the power supply and pull out while lifting up so that it will clear the other components. Great savings free delivery collection on many items. Jul 23, 2018 if you are in need of a power supply unit psu to resurrect your beloved apple iie, your may want to share my experience here. Clock and timing s3 processor s2 address bus s2, s5, s6, s7, s8, s9, s10. You can get brand new replacements for all apple iis from. There is plenty of information on how to repair apple ii power supplies, and i turned out to be lucky.

Apple iic restoration and video jack repair the 8bit guy. Help needed with apple iie power supply repair astec. Help needed with apple iie power supply repair astec look for open 100k or 150k resistors on the high voltage side of the power supply. Dec 19, 2015 the only repair i had to do was to replace the power supply filter capacitor that had already exploded when i got the computer. After the seera, apple changed to the replace the mainboard policy, but repairs used to be done onsite. The apple ii and its power supply the apple ii personal computer was introduced in 1977.

Apple ii plus from 1982 teardown, repair, cleanup and demonstration. There was enough of a consistency so i could rearrange what id already done in the power supply area to match the iis ps, and then use the rest to verify a close match. Some electronic engineering and the manufacture of apples messagepad devices was undertaken in japan by the sharp corporation. With some modifications, i understand it will also work in the. The power supply can be difficult to remove so be careful not to bend or damage any nearby components while you pull out the power supply. Most people are either unaware of the potential dangers of continuing to use an old psu or are of the mindset if it aint broke, dont fix it. Its not dead, its just in need of some very inexpensive tlc. Both have missing keys pics both units are for display purposes, or for parts and repair.

Real clean and i see a glass fuse so if your old apple has no power. When i turn on the iie, the red led is blinking and the computer does not start up. I found this enclosed psu on the internet purely by chance other models may work too. Apple ii power supply repair so your psu stopped working. Apple power supply vintage computing for sale ebay. The power supply in my apple ii plus completely failed about 2 weeks ago.

Some electronic engineering and the manufacture of apple s messagepad devices was undertaken in japan by the sharp corporation. Being an early apple iie the chips are all socketed so i lifted them all a little on both sides and settled them again. This afternoon i drilled out the rivets and opened it up. You may now be able to remove the power supply with a spudger. This is the number one problem that occurs with early apple iis and apple ii plus machines. Part two shows some trouble shooting repair, video adjustment and some old 1982 computing demo action. Need some help with an apple iie that wont boot reddit. One version of the iie had a numeric keypad built into the right side of the keyboard. With a strong ibm power supply, you can fill all your interface card slots or add extra disk drives without overloading the power source.

They arent overly high voltage or anything not like messing around in a crt. Hey everyone, i need some help fixing my old apple iie. That said, that can also happen if the computer is overloading the power supply in some way. Apple iie power supply 8250510a for vintage computer guaranteed. Same as original install at the best online prices at ebay. Apple continued to produce and sell apple iies up until 1993, extending the life of the apple ii series past 15 years. Apple iie power supply repair obsolescence guaranteed. Apple tv 3rd generation power supply replacement ifixit. This is a nice photo of the inside of the apples power supply. I called the apple service desk and they said the warranty expired 2 months ago. To reach the motherboard you just have to open the lid, and to dismantle it you just have to unscrew some screws.

If the power supply jumper is inserted all the way and the power is turned on, nothing happens. One of its features was a compact, fanless switching power supply, which provided 38w of power at 5, 12, 5, and 12 volts. Anyway due to the fumes and the smell i assumed it was a cap but upon opening the psu it appears to be something else. Thus, problems associated with weak power screen freezeups, crashes in the apple can be reduced or eliminated by using an ibm power supply on the apple. Note that authorized apple dealers repaired boards by swapping them out for tested and repaired boards provided by apple. From the apple c technical reference manual section 11.