Apple II Csa2 FAQs: Power & Cooling, Part 17/25

Apple II Csa2 FAQs: Power & Cooling, Part 17/25

Post by rubywan » Tue, 16 Dec 2003 18:49:06


rchive-name: apple2/faq/part17
Posting-Frequency: monthly
Last-modified: 2003/12/1
URL: http://home.swbell.net/rubywand/A2FAQs1START.html


The comp.sys.apple2 Usenet newsgroup Apple II FAQs originate from
the Ground Apple II archive, 1997-2003. Administrator: Steve Nelson

Csa2 FAQs-on-Ground ref: Csa2POWER.txt rev069 December 2003






Power Supplies & Cooling


001- What's the pin-out and load specs for the IIgs Power Supply?
002- Are the power supplies for the ][+ and IIe interchangeable?
003- What are the output capabilities of GS and IIe power supplies?
004- Can I use a 'generic' surplus power supply in my Apple II?
005- How do fatter leads reduce noise on the +5V & +12V lines?
006- Is there any more that can be done to eliminate glitches?
007- Is there a power supply upgrade kit for the Apple IIgs?
008- What kind of internal fan can I install in an Apple IIgs?
009- Why do so few GS power supplies have a fan installed?
010- What are some good Apple II power supply fix tries?
011- Some of our classroom IIe's don't work at all. Is there a fix?
012- Why does my Apple IIe often fail to turn on?!
013- What does a rapid chirping noise on a GS power supply mean?
014- How do I fix a nearly dead GS power supply?
015- What is a "Buggie Power Supply"?
016- Do I need the metal shielding in my GS case?
017- My System Saver IIgs has gotten very noisy. How can I fix it?
018- My System Saver IIgs panel feels springy? Is there a problem?
019- Can an overloaded power supply affect IIgs sound?







From: David Empson

001- Does anyone have pin-out and current ratings info for
the Apple IIgs Power Supply?


7 - 5 Volts 0.25 Amps
6 -12 Volts 0.25 Amps
5 +12 Volts 1.0 Amps
4 + 5 Volts 4.0 Amps
3 --nc--
2 GND
1 GND


The Power Supply connector pins are numbered as above. When you are sitting in front of the computer, pin 1 is nearest you. (i.e. pin 7 is nearest to the back of the motherboard).

____________________________



From: Rubywand

002- Are the power supplies for the ][+ and IIe interchangeable?

Yes. The plugs are the same and the ratings are the same and they look alike. Aside from, possibly, needing to add mounting holes for particular models, you should be able to swap ][+ and IIe power supplies whenever you wish.


----------------------------


003- Could someone compare the output capabilities of the GS and
IIe power supplies?

Okay. This is from information presented in GS and IIe manuals:


PS Connector Output Max. Output Current
Pin# (GS/IIe) Volts (GS/IIe)

7/6 - 5 V 0.25 Amps /0.25 Amps
6/5 -12 V 0.25 Amps /0.25 Amps
5/4 +12 V 1.00 Amps /1.50 Amps
4/3 + 5 V 4.00 Amps /2.50 Amps

2/2 GND
1/1 GND


----------------------------


004- Can I use a 'generic' surplus power supply in my Apple II?

Sure. Check out the power supplies listed in the MPJA, JDR, Jameco, and similar catalogs (see http://home.swbell.net/rubywand/A2FAQs3VENDORS.html for links). Mainly, you are looking for a relatively compact switching power supply which fits the following guidelines:

1- all four Voltages (+/- 5V and +/- 12V) are available
2- the power supply can be fitted into your Apple II
3-
 
 
 

Apple II Csa2 FAQs: Power & Cooling, Part 17/25

Post by rubywan » Mon, 05 Jan 2004 21:40:14

rchive-name: apple2/faq/part17
Posting-Frequency: monthly
Last-modified: 2004/1/1
URL: http://home.swbell.net/rubywand/A2FAQs1START.html


The comp.sys.apple2 Usenet newsgroup Apple II FAQs originate from
the Ground Apple II archive, 1997-2004. Administrator: Steve Nelson

Csa2 FAQs-on-Ground ref: Csa2POWER.txt rev070 January 2004






Power Supplies & Cooling


001- What's the pin-out and load specs for the IIgs Power Supply?
002- Are the power supplies for the ][+ and IIe interchangeable?
003- What are the output capabilities of GS and IIe power supplies?
004- Can I use a 'generic' surplus power supply in my Apple II?
005- How do fatter leads reduce noise on the +5V & +12V lines?
006- Is there any more that can be done to eliminate glitches?
007- Is there a power supply upgrade kit for the Apple IIgs?
008- What kind of internal fan can I install in an Apple IIgs?
009- Why do so few GS power supplies have a fan installed?
010- What are some good Apple II power supply fix tries?
011- Some of our classroom IIe's don't work at all. Is there a fix?
012- Why does my Apple IIe often fail to turn on?!
013- What does a rapid chirping noise on a GS power supply mean?
014- How do I fix a nearly dead GS power supply?
015- What is a "Buggie Power Supply"?
016- Do I need the metal shielding in my GS case?
017- My System Saver IIgs has gotten very noisy. How can I fix it?
018- My System Saver IIgs panel feels springy? Is there a problem?
019- Can an overloaded power supply affect IIgs sound?







From: David Empson

001- Does anyone have pin-out and current ratings info for
the Apple IIgs Power Supply?


7 - 5 Volts 0.25 Amps
6 -12 Volts 0.25 Amps
5 +12 Volts 1.0 Amps
4 + 5 Volts 4.0 Amps
3 --nc--
2 GND
1 GND


The Power Supply connector pins are numbered as above. When you are sitting in front of the computer, pin 1 is nearest you. (i.e. pin 7 is nearest to the back of the motherboard).

____________________________



From: Rubywand

002- Are the power supplies for the ][+ and IIe interchangeable?

Yes. The plugs are the same and the ratings are the same and they look alike. Aside from, possibly, needing to add mounting holes for particular models, you should be able to swap ][+ and IIe power supplies whenever you wish.


----------------------------


003- Could someone compare the output capabilities of the GS and
IIe power supplies?

Okay. This is from information presented in GS and IIe manuals:


PS Connector Output Max. Output Current
Pin# (GS/IIe) Volts (GS/IIe)

7/6 - 5 V 0.25 Amps /0.25 Amps
6/5 -12 V 0.25 Amps /0.25 Amps
5/4 +12 V 1.00 Amps /1.50 Amps
4/3 + 5 V 4.00 Amps /2.50 Amps

2/2 GND
1/1 GND


----------------------------


004- Can I use a 'generic' surplus power supply in my Apple II?

Sure. Check out the power supplies listed in the MPJA, JDR, Jameco, and similar catalogs (see http://home.swbell.net/rubywand/A2FAQs3VENDORS.html for links). Mainly, you are looking for a relatively compact switching power supply which fits the following guidelines:

1- all four Voltages (+/- 5V and +/- 12V) are available
2- the power supply can be fitted into your Apple II
3- th