Pic. 159. Transistor ignition system TSZ-H: 1 - switch; 2 - noise suppressing caps; 3 - terminal 1 (4); 4 - terminal 15 (+); 5 - terminal 1 (-); 6 - cover; 7 - ignition coil; 8 - candle cap; 9 - candle; 10 - carbon contact; 11 - ignition distributor cover; 12 - screen; 13 - tips; 14 - wires; 15 - radiator
The inductive Hall effect sends control pulses to the TSZ-H switching unit of the transistorized ignition system and thus determines the moment when the current passes through the ignition coil. Thus, the Hall sensor also determines the ignition timing.
When the sensor mask enters the air gap between the permanent magnets, it interrupts the magnetic field lines to the built-in Hall chip (Hall integrated circuit). The Hall sensor supplies voltage to the ignition coil. When the mask leaves the air gap, the voltage is turned off, and a spark is supplied to the corresponding cylinder.
To protect the switching unit and the ignition coil from overheating, the switching unit cuts off the supply voltage when the ignition is on and the engine is stopped after about 1 second.
As a safety measure, the ignition coil has a 5.5mm hole with a plug. It serves to ensure that the filling mass can flow out in the event of a defect in the switching unit of the transistor ignition system.
Since July 1984, connectors with M4 connections have been installed to improve the fixation of the ignition wires.
The connectors on the ignition distributor cover, ignition coil, spark plug tips and radio interference filter connectors have been changed accordingly.
Attention! Elements with old and new (M4) connectors are not interchangeable.
The TSZ-H ignition system is maintenance-free. It is only required every 15,000 km to apply a drop of oil to the felt insert on the ignition distributor shaft.
Attention! When working with the TSZ-H ignition system, it is necessary to strictly observe safety measures in order to avoid electrical shock and damage to the ignition system.
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