MobileXT
Badcaps Veteran
Last Activity: Yesterday, 10:15 AM
Joined: 10-23-2012
Location: USA
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No Audio going to the the TDA8922.... -
I check the Audio output at IC724 at Pin 1 and Pin 7 and I don't get any audio output. I did also replaced the IC724 and still have the same problem no audio output. The power supply is okay I have +15v at Pin 8 and -14.84v at PIN 4 Look Like DSP IC702 is no audio output at PIN 34,33 & 35 ,36 . I do have audio output @ PIN 29,30 & 31,32 which is the LF output.Leave a comment:
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That's what I thought it could be mute somewhere so I am looking at Q256 and Q257 as well as the IC724.I am still waiting for my oscilloscope. I already did replaced the TDA8922 that from China it could be faulty that's why have the same problem no audio output....Leave a comment:
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Another updates: I install the parts I get sound but another problem. I don't have high I test the tweeter is good....Leave a comment:
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I have a shorted on the IC713 and IC715 both on PIN 6 & 7 so I ordered the parts from Mouser NJM2068M-D hopefully will get here by next week. Once I get the parts I will update you guys....Leave a comment:
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Woofer and tweeter are not shorted:
Okay I have updates. I fixed the protection mode but now I have no audio input on all 3 channel input. The LED green input indicator won't turn on.Leave a comment:
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