Total of 7 fuses for European version; total of 6 total fuses for American versions.

1 3-amp fuse found on your power cord. (European Only) NO FUSE FOR USA PS1
1-white fuse on power supply (main fuse)
5-circuit protect (cp) type on motherboard PS601-PS605

If you have no power check the main fuse, one or two depending on version (Look above). The European power supply cords have a fuse in them, American Playstations do not. (American AC wall power is 120V, Europe is 240V- hence the need for a fuse in the power cord) The mains lead fuse is hiding inside the 3-pin plug of the European Playstation power cord.

To check the fuse on the power supply, open your psx and go to the power supply. Check and change the white fuse, if it blows again the trouble is in your power supply.

Here is a picture of the power supply and the location of the 3-amp fuse.

Most of the times is a bad transistor. These parts can be found in a local electronic store. However if both of these fuses (the power cord fuse and the main power supply (white) fuse are ok and your playstation still doesn't power up it will probably be a SMF type fuse that is located on the mother board.

Here is a picture of some of the SMF's on the main board.

Some of the common faults for blown main board fuses are listed below. These fuses are harder to fine and should not be replaced by just strapping out with wire. You can always use an ordinary SMF (surface mount fuse) used for other electronic equipment (VCR's CD PLAYERS ect..just match the number on the top of the fuse) as long as its the same value.

Some Common faults you will notice if a specific circuit protect type fuse blows.

PS601= 1 Amp-You have a picture but it goes to the audio menu. Also the laser does not spin and the game will not boot.

PS602= 1 Amp-You will not notice any change if this fuse goes bad. The purpose of this fuse is to provide protection for the supply line to the serial connector at the back of your playstation. Also this fuse is not used in European versions.

PS603= 1 Amp-You will not get any picture, you will only see a snowy pattern of horizontal parallel lines on the screen and the laser wont spin.

PS604= 2.3 Amp-You will have a blank screen and the laser wont spin.

PS605= 0.7 Amp-Your joy pad will not operate.

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