The board still has a slot for a rectifier tube. Those units can be recognized by the dot matrix display while still featuring Tape Out on the back panel.Īt some stage along the production (mid 2015) the rectifier tube was replaced by solid carbide diodes. The passive attenuation option was added extending the volume steps to 31 and a lower noise solid state voltage reference was used for the regulators. Gain can be reduced by rewiring 2 jumpers (please contact us for details)Ī revision (v2) was launched 2012. Those pieces have only 23 steps on their volume controls as they do not have the passive option. The rectifier and regulator tubes should be changed every year.
The units used a rectifier tube and Lundahl power transformer along with a regulator tube as reference for the shunt regulator. Their serial numbers are on the bottom plate. The distinguishing features for those are the seven segment led displays and Tape Out on the back. The first units made used Bent Audio input and attenuation boards. Rectifier burn out is more likely than rectifier short out. It is easy to assume that the issue is a bad battery because of symptoms such as dimming headlights irregular meter readings and poor starts. If he put on a new rectifier it would not have been damaged.
The first deals with diode burnout resulting in battery drain. There are generally two ways for the regulator rectifier to fail. Changing pump oil in vintage sea doo part 1of 2 duration. Bad rectifier directly causing a loss of rpm is improbable. There are probable and improbable symptoms.Īn indication of a bad rectifier could be 12v low indicated on the display or a battery that wont stay charged. Even if your rectifier does short out then it is unlikely that the battery cable resistance is low enough for the starter to work but high enough to spoil the ignition. 1996 seadoo xp starts up then jumps outta the hole and right away bogs down sounds like misfire or only one cyl is running. It was overheated because the rectifier shorted but it was not overheated to the point of losing the integrity of the insulation.
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