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Old 13th November 2012, 08:11 AM   #71
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oops just got it off and its a 100uf 16v
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Old 13th November 2012, 08:16 AM   #72
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You can simply remove it. That will eliminate the delay. I wouldn't connect speakers when powering it up. It could produce a loud pop.
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Old 13th November 2012, 08:23 AM   #73
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It measured 89uf on the meter does that mean its defective since its a 100uf cap?
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Old 13th November 2012, 08:26 AM   #74
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I accidentally shorted the emitter and collector of Q3 when doing some testing and the relay clicked. Does this mean Q3 is leaky and how could it be since its new????
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Old 13th November 2012, 08:38 AM   #75
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Shorting the collector and emitter should have prevented the relay from engaging by switching the other two transistors off.

89uf is within tolerance for most electrolytics (which are often 20%).

Are you sure that the relay didn't click immediately when you powered up the amp?

Re-check to see if you still have 14v on both ends of the diode near the relay.
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Old 13th November 2012, 08:42 AM   #76
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Yes I have 14.50 on both ends of D201 the diode next to the relay. The relay is not clicking when the amp powers up but if I short the emitter and collector it clicks on and stays on......I dont get it.
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Old 13th November 2012, 08:52 AM   #77
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How did you short the collector and emitter accidentally? They're on opposite sides of the body of the transistor.
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Old 13th November 2012, 08:56 AM   #78
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The top pin and middle pin are both the collector, they are connected underneath the transistor. When I went to test the voltage on the emitter I accidentally touched the collector at the same time.
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Old 13th November 2012, 09:26 AM   #79
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Are you sure that you had the voltage on the base of Q3 right when you posted the voltages?
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Old 13th November 2012, 09:28 AM   #80
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I replaced Q3 again with the same result no relay engage. I will check the voltages of Q3 again and re-post then to confirm.
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