Asus ZD553KL Service Manual page 27

ASUS
L3 Service Manual
1. First check the speaker body is damaged
2. Check whether the horn shrapnel and FPC are in good contact
3. Check that the FPC path is connected
4. Check that the FPC and the motherboard connectors are crimping properly
5. Check R1607 and 1608 resistance is normal
6. Check whether the U1500 chip Weld, and finally replace the U1500 chip
2017-06-08
ZD553KL - 27 -