Theory of Operation
TDS 310, TDS 320 & TDS 350 Service Manual 3Ć11
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Switches 7

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LEDs and Power Supply 7

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%"  +3 +(0$"+3". 1,,(5&/ /3&0 %&*$ ,+3". +*2".0". 0
/1,,(&"/ ,+3". 0+ (( 0%" &. 1&0.5 &*0%" +/ &((+/ +,"
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ON/STBY /3&0 % (+ 0"! +*0%" #.+*0,*"( +*0.+(/(( 0%",+3". 0+ 0%"
+/ &((+/ +," "4 ",0 0%" /0*!5 &. 1&0/&* 0%"+3 +(0$"+3". 1,,(5
%"  +*&0+. //")(5 !&/,(5/ (( &*#+.)0&+* 32"#+.)/ 0"40
$.0& 1("/ *! ,& 0+$.,%/ 0 $"*".0"/0%" %&$%2+(0$"/ *" "//.50+
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0"("2&/&+* )+*&0+.
Inputs, Video, and Vertical DeflectionĂĂ
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A20 Low VoltagePower SupplyA26 Monitor
Assembly