akira 14KLS4/CE, Service Manual

Page: 21 / 33

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Model No.: 14KLS4CE
Version: 1.0
Function Remark
PIN 11
Primary Voltage Check This is the input of the primary voltage check. The
voltage at the anode of the primary elcap has to be fed to
this pin via a voltage divider. If the voltage of this pin
falls below 1 V, the SMPS is switched off. A second
function of this pin is the primary voltage dependent fold
back point correction (only active in free running
mode).
PIN 12 Ground
PIN 13
Output Output signal. This pin has to be connected across a
serial resistor with the gate of the power transistor.
PIN 14
Supply Voltage Connection for supply voltage and startup capacitor.
After startup the supply voltage is produced by the
control winding of the transformer and rectified by
an external diode.