Hi.. Everyone...
I have problem with orion 2500D, while power up after relay on, shown any sound like a horn high freq at speaker .
I was replace ic's at modul driver, ic TL074, ic 14060B, and i try replace ic 305 with 74hc02 but ic very hot mybe wring code because code was erase and ic 305 back to original, but problem not solving, please help..
I have problem with orion 2500D, while power up after relay on, shown any sound like a horn high freq at speaker .
I was replace ic's at modul driver, ic TL074, ic 14060B, and i try replace ic 305 with 74hc02 but ic very hot mybe wring code because code was erase and ic 305 back to original, but problem not solving, please help..
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The IC is wrong. It's an LM361.
This is essentially the circuit that you have:
http://www.bcae1.com/temp/bp1200p1_sm.pdf
This is essentially the circuit that you have:
http://www.bcae1.com/temp/bp1200p1_sm.pdf
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Does it do this without any signal source connected?
Is the sound the same as before replacing the IC with an LM361?
Are the voltages right on all terminals of the LM361?
Is the sound the same as before replacing the IC with an LM361?
Are the voltages right on all terminals of the LM361?
This sound before signal input connected, and this sound before and after replace ic lm361 is same..
Please (and this applies to anyone who needs repair help) use your sig line to list all equipment you have, editing it as equipment changes. Include the model numbers.
Top of page, menu USER CP >> EDIT SIGNATURE
Oscilloscope (yes or no)
Multimeter(s)
Type of signal source (grounded RCA shields preferred).
Soldering iron
Desoldering pump
Power supply
2 ohm current limiting resistor (hollow cylindrical ceramic 100w preferred)
Top of page, menu USER CP >> EDIT SIGNATURE
Oscilloscope (yes or no)
Multimeter(s)
Type of signal source (grounded RCA shields preferred).
Soldering iron
Desoldering pump
Power supply
2 ohm current limiting resistor (hollow cylindrical ceramic 100w preferred)