Receiver - Huawei Y511-U030 Repair Manual

XXXX The basic version Repair Manual

9.4.4 Receiver

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Circuit Principle Diagram
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Circuit analysis:
If the circuit is the direct power supply chip circuit output, external 32 ohm headphones.
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Fault analysis and treatment process:
First confirm the receiver itself is good, can replace the test, receiver uses the shrapnel
crimping, confirm the good and PCBA pressure, the contact point should be clean, no dirt;
pathway finally check voice signal AU_HSP, AU_HSN and power supply chip, according to bad
welding or more power supply chip.
2013-09-25
V1.0
华为机密，未经许可不得扩散
internal public
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