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buckskin, you have the right transistors. your voltmeter reading "1" most likely means the same thing as the "OL" or "open line". this can be confirmed by touching the leads of the meter together and noting what that reading is. (should be something like 000 or 0.00) indicating a dead short.

those transistors are basically a set of two diodes together, so what you are measuring is the one way conduction of each of them. if the readings are .699 with the leads one way, and "1" with them the other way (switching positive and negative leads around) then at this point i am willing to say that they are ok, and you can re-solder them in place.

let's try this another way. using your desoldering braid, remove all the solder from the lead of w23 that showed the voltage drop. you need to make sure that you get ALL the solder off, and that you can see a small gap in between the actual lead of the transistor and the foil pad around it. the idea is to isolate the component lead from the trace.

once this is done, and you can physically move the lead around in its small hole, take another voltage measurement on the component lead (not the trace).

did it still show the same voltage drop? my initial guess is that the lead will show the correct voltage when it is disconnected from its trace.
LC

<blockquote data-quote="loosecannon" data-source="post: 606577" data-attributes="member: 1368">buckskin, you have the right transistors.&nbsp; your voltmeter reading &quot;1&quot; most likely means the same thing as the &quot;OL&quot; or &quot;open line&quot;.&nbsp; this can be confirmed by touching the leads of the meter together and noting what that reading is.&nbsp; (should be something like 000 or 0.00) indicating a dead short.those transistors are basically a set of two diodes together, so what you are measuring is the one way conduction of each of them.&nbsp; if the readings are .699 with the leads one way, and &quot;1&quot; with them the other way (switching positive and negative leads around) then at this point i am willing to say that they are ok, and you can re-solder them in place.let&#039;s try this another way.&nbsp; using your desoldering braid, remove all the solder from the lead of w23 that showed the voltage drop.&nbsp; you need to make sure that you get ALL the solder off, and that you can see a small gap in between the actual lead of the transistor and the foil pad around it.&nbsp; the idea is to isolate the component lead from the trace.once this is done, and you can physically move the lead around in its small hole, take another voltage measurement on the component lead (not the trace).did it still show the same voltage drop?&nbsp; my initial guess is that the lead will show the correct voltage when it is disconnected from its trace.LC</blockquote>

[QUOTE="loosecannon, post: 606577, member: 1368"] buckskin, you have the right transistors. your voltmeter reading "1" most likely means the same thing as the "OL" or "open line". this can be confirmed by touching the leads of the meter together and noting what that reading is. (should be something like 000 or 0.00) indicating a dead short. those transistors are basically a set of two diodes together, so what you are measuring is the one way conduction of each of them. if the readings are .699 with the leads one way, and "1" with them the other way (switching positive and negative leads around) then at this point i am willing to say that they are ok, and you can re-solder them in place. let's try this another way. using your desoldering braid, remove all the solder from the lead of w23 that showed the voltage drop. you need to make sure that you get ALL the solder off, and that you can see a small gap in between the actual lead of the transistor and the foil pad around it. the idea is to isolate the component lead from the trace. once this is done, and you can physically move the lead around in its small hole, take another voltage measurement on the component lead (not the trace). did it still show the same voltage drop? my initial guess is that the lead will show the correct voltage when it is disconnected from its trace. LC [/QUOTE]

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