Lenovo A516 Service Manual

Also see for A516: Quick start guide User manual Important product information guide

Repair Manual of Lenovo A516 Mobile Phone314.3 Fault in complete set test/ rework4.3.1 Switch spectrum & PVT template with excessive standard⚫ Fault: The switch spectrum and PVT template of GSM and DCS frequency bands areexcessive.⚫ Cause: The cold solder joint or damage to R2204,R2210 in V_ramp of PV may result in theexcessive switch spectrum.⚫ Shooting:Measure to see whether the voltage of Pin16 of PA （U2102）is in the normal range (1.8V or less)?Switch spectrum and RampMask with excessive standardCheck whether the input and outputmatching is in cold solder joint?Replace the elements in coldsolder jointReplace PA if necessary