Blu STUDIO 5.0 S, Service Manual

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U804：DC-DC, Provide the core power for cpu.
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U203 、U204：load switch ，in charge of memory’s power voltages.
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X1101：System’s main clock. Provide clock signal on 19.2MHZ when system was
working。
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U1101：RF’s transceiver。It‘s in charge of system’s RF signal’ tx and rx under
cpu’s controller。
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U1207：Antenna select switch. Under cpu’s control, through the switch, it can
select different frequencies. And on the time, it can amplify the qual-band GSM
radio signal.
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U1206：The saw filter on the rx path of GSM1800 and GSM1900.
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U5605：The saw filter on the rx path of GSM850 and EGSM900.
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U1205：The saw filter on the WCDMA BAND 1‘s signal tx path before PA.
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U1203：WCDMA BAND 1‘s PA。
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U1210：WCDMA BAND 1‘s diplexer.
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U1202：The saw filter on the WCDMA BAND 8‘s signal tx path before PA.
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U1209：WCDMA BAND 8‘s PA.
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U1201: WCDMA BAND 8‘s diplexer.
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U1602: BT&WIFI‘s antenna switch.
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U1604：WIFI chipset.
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U1607：BT chipset, in charge of Bluetooth and FM function.
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J1702：LCD’s connector.
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J1704：TP’s connector.