Vala, je me suis apperçu que j'avais une resistance sur mon F14 qui était plutot mal en point......
Vu son etat, j'ai du mal a l'identifier pour commander son identique et la changer.
Quelqu'un peut il m'aider ??
Merci à tous.
A propos de resistance.....
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BruceFZ
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A propos de resistance.....
Salut à tous,
Vala, je me suis apperçu que j'avais une resistance sur mon F14 qui était plutot mal en point......
Vu son etat, j'ai du mal a l'identifier pour commander son identique et la changer.
Quelqu'un peut il m'aider ??
Merci à tous.
Vala, je me suis apperçu que j'avais une resistance sur mon F14 qui était plutot mal en point......
Vu son etat, j'ai du mal a l'identifier pour commander son identique et la changer.
Quelqu'un peut il m'aider ??
Merci à tous.
Aplusss. Bruce.
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lafleche78
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Résistance 150 ohms.
si tu en as, mets plutot une 1/2W ou une 1W au lieu d'une 1/4W, ca résiste mieux.
Source: Marvin ! :
Locked On 50 Volt Coil, Sys11/Sys11A.
If a system11 and system11a game (Fire! and before) have a 50 volt coil is locked on at game power-on, this is usually a under-playfield mounted relay board problem. The CPU board TIP122 turns the 28 volt relay board's relay on. This in turns completes the 50 volt power path to the coil through the relay switches. If the 1N4004 diode on the 50 volt coil fails, the relay switches for this relay will take extreme abuse (big huge blue spark). Eventually this will burn the switch contacts to the point where they weld together. And this will cause the 50 volt coil to lock-on at game power on.
To fix this problem first make sure the coil's 1N4004 diode is not broken or shorted. Then look at the associated relay on the relay board. You will have to remove the plastic cover from the relay, which should pry off. Examine the switches on the relay, and adjust/clean as needed. To clean these relay switches, use a Flexstone file (this unlike cleaning the gold contact playfield switches, which should *never* be filed). Also make sure the 150 ohm resistor on the relay board is not burnt. When done, push the plastic cover back on the relay (it should snap in place).
To test the relay and the 50 volt coil it powers, use the game's diagnostics. Or ground the non-banded side of the 1N4004 diode on the relay board (which complete 28 volts power to the relay board). This will energize the relay, which in turns energizes the 50 volt coil. Note there are two 1N4004 diodes on the relay board. The one you want to ground is the non-banded side of the 1N4004 diode that is by itself (*not* next to the 150 ohm resistor).
Grounding the "DRV" lead with an alligator clip on the under
the playfield relay board to energized the device this board
controls.
si tu en as, mets plutot une 1/2W ou une 1W au lieu d'une 1/4W, ca résiste mieux.
Source: Marvin ! :
Locked On 50 Volt Coil, Sys11/Sys11A.
If a system11 and system11a game (Fire! and before) have a 50 volt coil is locked on at game power-on, this is usually a under-playfield mounted relay board problem. The CPU board TIP122 turns the 28 volt relay board's relay on. This in turns completes the 50 volt power path to the coil through the relay switches. If the 1N4004 diode on the 50 volt coil fails, the relay switches for this relay will take extreme abuse (big huge blue spark). Eventually this will burn the switch contacts to the point where they weld together. And this will cause the 50 volt coil to lock-on at game power on.
To fix this problem first make sure the coil's 1N4004 diode is not broken or shorted. Then look at the associated relay on the relay board. You will have to remove the plastic cover from the relay, which should pry off. Examine the switches on the relay, and adjust/clean as needed. To clean these relay switches, use a Flexstone file (this unlike cleaning the gold contact playfield switches, which should *never* be filed). Also make sure the 150 ohm resistor on the relay board is not burnt. When done, push the plastic cover back on the relay (it should snap in place).
To test the relay and the 50 volt coil it powers, use the game's diagnostics. Or ground the non-banded side of the 1N4004 diode on the relay board (which complete 28 volts power to the relay board). This will energize the relay, which in turns energizes the 50 volt coil. Note there are two 1N4004 diodes on the relay board. The one you want to ground is the non-banded side of the 1N4004 diode that is by itself (*not* next to the 150 ohm resistor).
Grounding the "DRV" lead with an alligator clip on the under
the playfield relay board to energized the device this board
controls.
car sur mon Road Kings, cette résistance est grillée et il n'y pas la surface....donc 150 Ohms en 1/2 w ou 1W, je le note 
