4-10
Samsung Electronics
Troubleshooting
4-1-3 Poor PC Connection
Is there a
mobile storage device in
‘My Computer’?
Is there USB
connection icon displayed
on the LCD?
Finished
Yes
No
Yes
Yes
Is the firmware
updated through the DFU
Update?
Is the
USB connection
resistance (R13, R16)
Cold Soldered? R13, R16
Cold Solder Check: JACK2 Pin4
and R13 Short Check,
Check for short in
Pin1 and R14
Short
No
No
Yes
Is formatting
occurring in Windows
Explorer?
Is the USB
connection established
after a RESET?
No
Yes
Yes
No
Is there ACCESS?
USB connection
No
Add solder then connect
USB and recheck
Connect USB
MAIN IC malfunction
(replace Board)
No
Refer to wave pattern
image of Fig. 4-6.
Summary of Contents for YEPP YP-S2
Page 11: ...2 6 Samsung Electronics MEMO ...
Page 19: ...4 6 Samsung Electronics Troubleshooting MAIN Page 7 3 IC9 PCB Bottom Page 6 4 Fig 4 3 4 4 4 ...
Page 20: ...Samsung Electronics 4 7 Troubleshooting MAIN Page 7 3 IC8 PCB Top Page 6 2 Fig 4 4 5 5 5 ...
Page 21: ...4 8 Samsung Electronics Troubleshooting MAIN Page 7 3 1 IC9 PCB Bottom Page 6 4 Fig 4 5 6 6 6 ...
Page 37: ...5 6 Samsung Electronics MEMO ...
Page 38: ...Samsung Electronics 6 1 PCB Diagram 6 PCB Diagram 6 1 PCB Top 6 2 6 2 PCB Bottom 6 4 ...
Page 39: ...6 2 Samsung Electronics PCB Diagram 6 1 PCB Top 1 TP5 1 24MHz Crystal IC8 ...
Page 40: ...Samsung Electronics 6 3 PCB Diagram 6 1 1 Test Point Wave Form TP5 ...
Page 43: ...6 6 Samsung Electronics MEMO ...
Page 47: ...7 4 Samsung Electronics MEMO ...