FIC a440 Servicehandbuch

 

Troubleshooting and Repair 

 

FIC A440 Series Service Manual 

6-19

 

6.4.10  Charger Board Interface Check 

10

Plug-in AC adapter

DC_IN = 20V

Check M/B TW1, F1

Q6 = 5V

Check AIO CHG_EN

Charge Battery

Check U1, Q6, Q7,

Q8

END

NO

NO

NO

YES

YES

Check SMBC, SMBD

Check U602, U401,

F601

NO

Check Battery Pack

Voltage & Temp

YES

 

6.4.11  Serial Port Interface Check 

11

Check BIOS Setup

Enter correct type for

COM1

Check Transmitting

Signal

Check U3

(MAX3243) SOUT1

Check Receiving

Signal

Check U3

(MAX3243) SIN1

END

NO

YES

NO

NO

YES

YES