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Input connector broken inside - Panasonic DVD-LS850

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Depending if it was a clean break (solder still intact and the traces have not been damaged this would be a easy solder repair but if the traces are damaged looks like more of a detailed repair

Posted on Oct 21, 2008

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Obviously the hi hat trigger does not function properly, it either does not generate enough signal, or the signal doesn't come thru well, or the signal comes thru well but it doesn't trigger the sound unit properly.

This could be caused by:

- too low input sensitivity setting on the sound unit for the hi hat input
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- a partially damaged sensor
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- a bad wire connection at the sensor connector
- a dirty contact on the sensor connector
- a dirty contact on the cable connector at either side of the cable
- a bad cable, a broken wire or poorly soldered wire in the cable connector at either side of the cable
- a dirty contact on the input connector of the sound unit
- a bad solder connection on the input connector of the sound unit (inside the unit)
- a bad solder contact on a component or a faulty component associated to that particular input in the sound unit (capacitors, resistors, diodes, transistors, ICs, etc.)

To rule out a damaged cable, just change it and see if the hi hat works ok with another cable, if it does, the cable was damaged.

If the sensors are interchangeable , try to swap the sensor with a sensor from another cymbal, see if the other sensor works well, if it doesn't, then the sensors are not the problem.

To see if there is a problem with the input on the sound unit, connect another cymbal to that input, if it works well, the input is not the problem, if it still doesn't work, check sensitivity/trigger level setting, check connector contacts for any dirt, check connector and component solder contacts inside the unit.

Also, try to connect the hi hat to another input on the sound unit, if it doesn't work well after that, there's a problem with your hi hat (sensor, wires, dirty connector on the sensor), if it works well instead, then there's a problem with the hi hat input on the sound unit (sensitivity/trigger level, dirty connector contacts, bad solder contacts, damaged components)

Another thing: try your hi hat connected as is, but have someone move the cable connectors while you play it.
If moving the cable connector at the sensor side results in a change of operation (it might start working well for an instant or so), you definitely have a problem with that connection (check for bad wires in sensor connector, cable connector and for dirt on both connectors' pins).

If moving the cable connector at the sound unit input side results in a change of operation, then there's a problem with that connection (check for bad solder points on the input connector inside the sound unit, check for bad wires in cable connector, check for dirt on both connectors' pins).

I hope you can fix it, otherwise just post me some feedback if anything seems unclear, i'll be glad to assist you.

regards

3rq8 (Triarcuate)

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