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R21
Charging resistor, 12Ω, 10W, for buffer capacitor C02 (C03).
When energising the power unit, pulses from control circuit board AP01
are delayed by 300 ms to allow the buffer capacitor to charge.
R26
Discharge resistor for buffer capacitor C03. This capacitor is only fitted in
LTR 200. After turning off the mains power supply, the discharge time for
the capacitor is about two minutes.
R27
Discharge resistor for buffer capacitor C02. After turning off the mains
power supply, the discharge time for the capacitor is about two minutes.
TY1
Thyristor for shunting charging resistor R21 when the machine is loaded.
If TY1 did not conduct, resistor R21 would burn out when the unit is on
load.
Component positions, circuit board AP03
cltr0de3
- - 31 - -
cmha2e09
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