DIAGRAMA DE SAMSUNG J7
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Level 3 Repair<br />
8-4-3. No Service<br />
No service<br />
Yes<br />
Check memu setting<br />
Menu → applications → setting → wireless and network →<br />
mobile networks → network mode → setting is auto mode ?<br />
Menu → Phone → Keypad →<br />
*#1234# → check Phone version →<br />
PHONE : SM-<strong>J7</strong>00FXXXX or<br />
PHONE : unknown<br />
PHONE : <strong>J7</strong>00FXXXX<br />
Check the connection of RF coaxial cable<br />
PHONE : unknown<br />
Check the WARM_RESET_INn<br />
(C3057) = 1.8V<br />
No<br />
Replace the U4002<br />
Yes<br />
Check OSC4000<br />
No<br />
Replace the OSC4000<br />
Yes<br />
Replace UCP300-2<br />
END<br />
Yes<br />
※ Schemetic : Refer to the 8-4-2 (Initial)<br />
8-10<br />
Confidential and proprietary-the contents in this service guide subject to change without prior notice.<br />
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
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