D61 and 63 are in TO-220 packages but you can have many different types of components in a TO-220 package. In this instance, they are rectifiers.
Post the voltage on the 494. Copy and past the following and fill in the blanks.
Pin 1:
Pin 2:
Pin 3:
Pin 4:
Pin 5:
Pin 6:
Pin 7:
Pin 8:
Pin 9:
Pin 10:
Pin 11:
Pin 12:
Pin 13:
Pin 14:
Pin 15:
Pin 16:
Post the voltage on the 494. Copy and past the following and fill in the blanks.
Pin 1:
Pin 2:
Pin 3:
Pin 4:
Pin 5:
Pin 6:
Pin 7:
Pin 8:
Pin 9:
Pin 10:
Pin 11:
Pin 12:
Pin 13:
Pin 14:
Pin 15:
Pin 16:
ok will do so witch ground do i use the amp ground in and do i need q10 and q16 fixed first and do i power up amp or no
You don't have to check the 1st leg of the two transistors. If they were in the circuit, it may have indicated whether they survived or not.
you have me lost can u email me your number if thats cool and i can give u a call that will be easyer i have everything in front of me my email is flycrazy1981@gmail.com
Q10 and Q16 are the transistors. Forget about those for now.
For now, post the voltage on the TL494.
For now, post the voltage on the TL494.
idk if this is right but multi meter on dc volts ground on amp main ground and when i touch all pins i get 0 volts
so i can power the amp out of the case no heat sinks no q10/q16 and no irf3205 and i power it just like if it was in a car?
Yes. With the 3205s out of the circuit, there isn't much that can go wrong. I'd recommend inserting a 10-15 amp fuse in the B+ line. The low-rated fuse in the B+ line is good practice when doing any low power testing.
pin 1 0.003
pin 2 04.94
pin 3 0.065
pin 4 0.065
pin 5 1.436
pin 6 3.681
pin 7 0.003
pin 8 11.56
pin 9 04.35
pin 10 04.48
pin 11 11.55
pin 12 11.57
pin 13 04.94
pin 14 04.94
pin 15 04.94
pin 16 0.003
pin 2 04.94
pin 3 0.065
pin 4 0.065
pin 5 1.436
pin 6 3.681
pin 7 0.003
pin 8 11.56
pin 9 04.35
pin 10 04.48
pin 11 11.55
pin 12 11.57
pin 13 04.94
pin 14 04.94
pin 15 04.94
pin 16 0.003
The IC looks OK.
Much of the protection circuit requires the power supply to be working to be triggered.
Have you checked the output transistors?
Much of the protection circuit requires the power supply to be working to be triggered.
Have you checked the output transistors?
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