Panne de l'expression system de ma Taylor 414

Do you have new batteries in the guitar? If you have a 9v powered Expression System, an EST or ESN system, there will be a red battery indicator light inside the guitar. It’s mounted on the edge of the preamp and should light up when a cable is plugged into the guitar. If the light doesn’t come on, chances are you have a dead battery or the battery is installed backwards. Look closely at the battery holder to make sure you line up the small + tab with the small notch on the holder. Older version of the Expression System take 2 AA batteries. If only one battery comes out, the second battery may be stuck inside. Do your best to get it out by shaking the guitar or grabbing the tip with needle nose pliers. Always use two brand new batteries and put them in flat end first. Important: Don’t mix new and old batteries together. The old one will heat up and may leak acid, causing damage to the battery housing.

You’ve checked the amp, cables, and batteries and the ES indicator light is on, but there is still no sound. If you have a 9v powered Expression System, an EST or ESN system, there’s one more thing you can try on your own. The EST and ESN have a small black phase switch right near the battery light. If the switch is stuck in mid travel, it can kill the output. Reach into the soundhole and flip the switch to one end or the other and try again.
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