Speaker Part - Samsung SGH-i700 Service Manual

SGH-I700 Flow Chart of Troubleshooting

6. Speaker Part

Speaker does not work
Yes
CN602 pin 7,8
!= sine wave ?
Yes
Check the pin 1 of
U405 is "H" ?
Yes
Check the pin 4 of
U407 is "H" ?
Yes
Is there sinewave signal
on the U403 pin35,36
during window Media
playing?
Yes
END
SAM SU N G Pr opr i et ar y- C ont ent s m ay change w i t hout not i ce
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No
Replace Speaker and If speaker is
well, than replace side key F-PCB
No
Hardware Reset or Download Image
No
Hardware Reset or Download Image
No
Hardware reset or Resodering or
download image.
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