Power requirements: Difference between revisions
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The best idea SNK ever had was to sell a video game console with its power input going straight to all the chips, without any kind of polarity or voltage protection. This probably resulted in many fried consoles and pushed SNK to make the "9V" version. | The best idea SNK ever had was to sell a video game console with its power input going straight to all the chips, without any kind of polarity or voltage protection. This probably resulted in many fried consoles and pushed SNK to make the "9V" version. | ||
5V +/- 0.2V at 2A. Going over 5.2V will more or less quickly kill components. 9V will cook everything. Going under 4.8V | 5V +/- 0.2V at 2A. Going over 5.2V will more or less quickly kill components. 9V will cook everything. Going under 4.8V can cause glitches or resets. | ||
=="9V" version== | =="9V" version== | ||
Considering the 0.5V max drop of the input diode (D1: SR340) and the minimum voltage for the LM2576, the "9V" version AES console should run '''starting from 7.5V'''. Using a 5V power supply won't damage anything, it simply won't work. | Considering the 0.5V max drop of the input diode (D1: SR340) and the minimum voltage for the LM2576, the "9V" version AES console should run '''starting from 7.5V'''. Using a 5V power supply won't damage anything, it simply won't work. | ||
The LM2576 can work up to 45V but the surrounding components were probably chosen to whitstand '''no more than 12V'''. | The LM2576 can work up to 45V but the surrounding components were probably chosen to whitstand '''no more than 12V'''. The capacitors are rated at 16V. | ||
The current draw is around '''750mA at 9V'''. It can be expected to rise up to 1.5A depending on the game played and the use of headphones. | The current draw is around '''750mA at 9V'''. It can be expected to rise up to 1.5A depending on the game played and the use of headphones. | ||
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=CD= | =CD= | ||
To do. | To do. See [[NEO-CDA board]]. | ||
[[Category:Base system]] | [[Category:Base system]] | ||
Revision as of 03:57, 31 March 2016
Notes about power supply testing ? Unloaded/loaded voltage ? Max current ? Linear vs. switching infos ?
AES
5V version
The best idea SNK ever had was to sell a video game console with its power input going straight to all the chips, without any kind of polarity or voltage protection. This probably resulted in many fried consoles and pushed SNK to make the "9V" version.
5V +/- 0.2V at 2A. Going over 5.2V will more or less quickly kill components. 9V will cook everything. Going under 4.8V can cause glitches or resets.
"9V" version
Considering the 0.5V max drop of the input diode (D1: SR340) and the minimum voltage for the LM2576, the "9V" version AES console should run starting from 7.5V. Using a 5V power supply won't damage anything, it simply won't work.
The LM2576 can work up to 45V but the surrounding components were probably chosen to whitstand no more than 12V. The capacitors are rated at 16V.
The current draw is around 750mA at 9V. It can be expected to rise up to 1.5A depending on the game played and the use of headphones.
MVS
To do.
CD
To do. See NEO-CDA board.