Post by tonystrak on Jan 17, 2018 3:00:40 GMT -5
Hi,
I recently purchased a E-MU SP 12 online. It arrived not working however it seemed all that was needed was to change the dead battery to get it working. A technician at a local music repair store did the battery change. Then a problem arose that we just can't figure out. The SP 12 is now killing any memory battery installed as it is drawing too much current.
When the battery is first connected, it draws about 1000 microamps ( 1 milliamp) and then after a few minutes goes up to 1500 microamps (1.5 milliamp). Based on the schematic, he removed every part (about 15 parts) he could find associated with the battery and memory circuits and that did not change the current draw.
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I recently purchased a E-MU SP 12 online. It arrived not working however it seemed all that was needed was to change the dead battery to get it working. A technician at a local music repair store did the battery change. Then a problem arose that we just can't figure out. The SP 12 is now killing any memory battery installed as it is drawing too much current.
When the battery is first connected, it draws about 1000 microamps ( 1 milliamp) and then after a few minutes goes up to 1500 microamps (1.5 milliamp). Based on the schematic, he removed every part (about 15 parts) he could find associated with the battery and memory circuits and that did not change the current draw.
For More Details
Sales Promotional Examples