Apple ii power supply repair

Thats how i learned that not all power supplies have bleeder resistors for those main filter caps on the high voltage side. This apple e power supply is a repair for youtube user roadgeek. A few years ago it started acting funny and having trouble turning on, so i sent the logic board to charles phillips maccaps repair service. Condition of all hardware as is, many items are described as tested, ask for details. We test what we can, we can run some apple ii systems and do functional tests on keyboard, power supply, drives not exhausive tests, not at these prices. If you cant turn on your mac or if the screen turns black, follow these steps to resolve the issue. Apple iie testing, cleaning and restoration youtube. 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.

You are currently browsing the archives for the iigs power supply category. I am using a hacked up at psu as a temporary solution to power one machine, but i would like to get back to being able to run them with the cases on. Help needed with apple iie power supply repair astec. I called the apple service desk and they said the warranty expired 2 months ago. Part two shows some trouble shooting repair, video adjustment and some old 1982 computing demo action. I was unable to get an apple quote even though the apple service experts suggested the store would be able to. First, make sure that the power onoff switch on the rear power supply panel on your apple ii is in the off position. From the apple c technical reference manual section 11. Lc to lc iii upgrade apple macintosh lc series quadra. Mac iifx power supply, 6990393, apple labled probably. Its a thread in my repair logs on repairing switching power supplies.

Apple ii power supply repair so your psu stopped working. Power supply apple macintosh lc series quadra 605 lc ii lc ii lc 475. Apple e psu repairrestoration for roadgeek youtube. I got a new x capacitor and new electrolytics on the input and output side. I was originally quoted by an apple certified repair location of parts. The connector pins are identified in figure 111 and table 1. Imac power supply capacitors before to buy, look carefully if my repair kit is compatible with your imac power supply 300uf capacitor high temp, 3 2200uf capacitors high temp, 2 uf capacitors high temp, 1 1200uf capacitor high temp, 1 uf capacitor high temp, 1 330uf capacitor high temp, 1 120uf capacitor high temp, 1 solder wire 10. Testing and cleaning up an apple iie from 1983 replacing the rifa capacitor in the power supply. Iigs power supply repair showing 118 of 18 messages. Replacement note apple macintosh lc series quadra 605 lc ii lc ii lc 475.

Unfortunately, the late 2005 power mac g5 series uses a custom power supply, as do all power mac g5s. I am attempting to repair an original a2m001 style power supply not made by astec for my apple ii. The best and worst macs for upgrades and repairs believe it or not, upgradeability, durability, and repairability are parts of apples dna. Apple tv 3rd generation power supply replacement ifixit. Make sure you discharge the 2 large filter caps on the high voltage side first. The universal psu kit is a power supply replacement designed by. You may now be able to remove the power supply with a spudger. Apple ii powersupply product information manufacturer apple computer asin b00450cke0 unspsc code 43211501 item model number 6065001 date first available september 30, 2010. Capacitor replacement in a vintage power supply big mess. These tips show you how to maximize your battery performance. The apple iic, the fourth model in the apple ii series of personal computers, is apple computers first endeavor to produce a portable computer. Many of the 80 column cards for apple ii not apple iie came with this mod kit. The combination completely replaces the trusty but bulky apple power supply.

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. Greetings, none of my original apple iigs power supplies will run a iigs stablely anymore. Note that authorized apple dealers repaired boards by swapping them out for tested and repaired boards provided by apple. Before you remove completely the power supply, unscrew the t5 screws on each side of the socket. But then a few months ago it started to develop new problems that pointed to the need for a power supply recap. After 5 years serving the vintage apple enthusiast community, thinkclassic has been marked for closure and is now in caretaker mode. Make sure that you connect the third wire to ground if you have only a. It also gives me a record and something more to do that is apple iigs related yippie.

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. He did a great job with the capacitor replacement, and the machine was working great again. Below is a picture of the inside of my restored apple ii. The c in the name stood for compact, referring to the fact it was essentially a complete apple ii computer setup minus display and. In the spirit of the original computer hacker, the apple ii was also available as a circuitboard only, without keyboard, power supply, or case, as seen here on the right. The apple iic was to the apple ii platform what the powerbook was to the power mac. In this section youll find original mac power supply for all apple computer systems dv warehouse mac power supply section is your complete source to find listing of all available apple power supplies on the various apple computer models. The littlepower is an adapter card that lets you utilize a modern atx power supply with your apple iigs, by providing the missing 5v line required by the apple ii.

Please browse around and let us know if you need assistance in. Logic board apple macintosh lc series quadra 605 lc ii lc ii lc 475. In addition, the magnetic dc helps guide the plug into the system for a quick and secure connection. Its not dead, its just in need of some very inexpensive tlc. Power supply problems just an aside, my trusty mac pro 2008 tower started behaving erratically a few weeks ago. I got a new xcapacitor and new electrolytics on the input and output side. In part one i do a teardown and cleanup then give a little history. Please direct any questions, comments and enquiries about the website, management and ownership to this thread. The apple ii was one of the first computer with a color display, and it has the basic programming language builtin, so it. The pcb inside the supply is dated 1982, so the supply in itself is around 31 years old. Apple sos allows the full capacity of a storage device to be used as a single volume, such as the apple profile hard disk drive, and it. Apple iic a2s4000 computer a2m4090 monitor for parts or repair. I originally purchased the machine in the spring of 1978.

The littlepower is designed to be used in conjunction with a specialized, small form factor 200 watt miniatx power supply and external 12v ac adapter. The apple iii introduced an advanced operating system called apple sos, pronounced apple sauce. Apple ii plus from 1982 teardown, repair, cleanup and. It includes 1st rev keyboard, a2m001 power supply, rev 0 replica motherboard, integer roms, firmware card with applesoft roms, original paddles, disk.

But ibmstyle power supplies deliver 150200 watts of power, more than twice the weak output of the standard 60 watt apple ii power supply. While everyone at apple was friendly, they had inconsistent messages across departments, this was a giant pita. Attempting to repair the power supply itself would not be recommended, due. 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. Since you dont know if the machine suddenly stopped working or it stopped working when they plugged in a bad card. It is user installable in your existing metal power supply enclosure. Apple iie power supply repair obsolescence guaranteed. Apple ultracompact usb power adapter exchange program.

The 45w magsafe 2 power adapter features a magnetic dc connector so if someone should trip over it, the cord disconnects harmlessly and your macbook air stays put safely. It also helps prevent fraying or weakening of the cables over time. Dc makes your muscles contract and if you pick up a power supply you might find yourself unable to let go. Over the years, most macs have lived up to that legacy. If youre experiencing an issue with your battery, your mac notebook might not require a repair. Sometimes the failure is rather forgiving and the power supply simply wont start up. The best and worst macs for upgrades and repairs macworld. Clock and timing s3 processor s2 address bus s2, s5, s6, s7, s8, s9, s10.