DeLoreanRide
New member
I'm trying to rebuild a DK Sanyo 20-ez Monitor and am wondering how to test the Horizontal Output Transistor.
I pulled it out of the the circuit and am testing the continuity.
On the HOT with the meter in diode checker mode:
Between the Base and Emmitter, either direction I'm reading "069".
Emmitter to Collector one direction is open the other direction is "545".
Base to Collector one direction is open the other direction is "490".
This seems correct right? No completely open legs and no shorted legs.
Now testing the actual circuits that the legs are connect to, with the meter in diode checker mode:
Emmitter to base either direction reads shorted or unobstructed; ( about .6 ohms)
Base to collector obviously has a capacitor because its resistance is going up; one direction tops out at about "1620" the other direction climbs then shows open.
Emmitter to collector has a capacitor because its resistance is going up; one direction tops out at about "1620" the other direction climbs then shows open.
Anyway can anyone verify how these circuits should be?
Is there any tried and true way to test an HOT? Thanks!
I pulled it out of the the circuit and am testing the continuity.
On the HOT with the meter in diode checker mode:
Between the Base and Emmitter, either direction I'm reading "069".
Emmitter to Collector one direction is open the other direction is "545".
Base to Collector one direction is open the other direction is "490".
This seems correct right? No completely open legs and no shorted legs.
Now testing the actual circuits that the legs are connect to, with the meter in diode checker mode:
Emmitter to base either direction reads shorted or unobstructed; ( about .6 ohms)
Base to collector obviously has a capacitor because its resistance is going up; one direction tops out at about "1620" the other direction climbs then shows open.
Emmitter to collector has a capacitor because its resistance is going up; one direction tops out at about "1620" the other direction climbs then shows open.
Anyway can anyone verify how these circuits should be?
Is there any tried and true way to test an HOT? Thanks!
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