Samsung SMX-K40BN Service Manual page 21

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Samsung Electronics
<Table 4-4 : Test Point Wave Pattern Image >
Position of
Replacement part
IC201 19pin
q
(Fig. 4-7)
CN202(DP, DM)
(Fig. 4-8)
X401
e
(Fig. 4-9)
Wave pattern image
USB Detect
USB DP/DM
X401 12MHz
Troubleshooting
4-13