Samsung YP-R1, Service Manual

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Samsung Electronics 4-13
Troubleshooting
4-1-6 If the battery is not charging
Are the battery FPCB
and the connector connected
properly?
Change the battery
Yes
No
Yes
No
Does it work after
the firmware upgrade?
Yes
1
Is the voltage of the battery
above 4.5V? (C801)
Yes
Replace the battery and check the
voltage again.
No
Replace the board.
(Detailed inspection is required.)
Is the screen on when
connecting the USB?
If the battery is not charging
2
/
3
/
4
Check voltage of the battery.
R621 – High while charging,
R618 – Low while charging and
High when fully
charged.
Yes
No
Connect the battery FPCB and the
connector properly.
No

See the waveform and
the image in Fig. 4-7.

See the waveform and
the image in Fig. 4-8.