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Q120 TV Maintenance Manual
13
3.5 Camera fault
Check camera for damage
Failure to use camera
OK
Replace new camera
Yes
Check if camera is soldered or
assembled well
No
Yes
Solder camera connector
or Re-assemble camera
Check camera circuit for fault
No
Yes
Mark the mainboard
with analysis result
Replace new mainboard
No
Summary of Contents for Q120 TV
Page 3: ...Q120 TV Maintenance Manual 3 1 Circuit diagram instruction 1 1 Main board explored view...
Page 6: ...Q120 TV Maintenance Manual 6 1 5 Function circuit FM circuit U802 FM receiving chip RDA5802E...
Page 7: ...Q120 TV Maintenance Manual 7 BT circuit U701 BT receiver chip MT6612CN L...
Page 10: ...Q120 TV Maintenance Manual 10 3 2 No ring tone...
Page 11: ...Q120 TV Maintenance Manual 11 3 3 LCD display fault...
Page 12: ...Q120 TV Maintenance Manual 12 3 4 Charging fault...
Page 14: ...Q120 TV Maintenance Manual 14 3 6 Fail to identify SIM card...
Page 15: ...Q120 TV Maintenance Manual 15 3 7 MIC fault...
Page 18: ...Q120 TV Maintenance Manual 18 3 10 Vibrate fault...
Page 19: ...Q120 TV Maintenance Manual 19 3 11 FM fault...
Page 23: ...Q120 TV Maintenance Manual 23 3 15 Unable to use USB END...