Panasonic KX-TG6511RUB Service Manual

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Panasonic KX-TG6511RUB Service Manual Manual pdf 35 page image

35KX-TG6511RU/KX-TG6512RU/KX-TGA650RU/KX-TGA651RU9.2. Troubleshooting by Symptom (Base Unit and Charger Unit)If your unit has below symptoms, follow the instructions in remedy column. Remedies depend on whether you have DECT tester(*1) or not.Note:(*1) A general repair is possible even if you don’t have the DECT tester because it is for confirming the levels, such as Acousticlevel in detail.(*2) Refer to Check Point (Base Unit) (P.35)9.2.1. Check Point (Base Unit)Please follow the items below when BBIC or EEPROM or FLASH is replaced.Note:After the measuring, suck up the solder of TP.*: The Setting Method of JIG (Base Unit) (P.47) is required beforehand.The connections of simulator equipments are as shown in Adjustment Standard (Base Unit) (P.49).Items CheckPointProcedure Check orReplace Parts(A) 3.0 V Supply Confirma-tionVDD3 1. Confirm that the voltage between test point VDD3 and GND is 3.0 V ± 0.2 V. IC2, IC3, C32,C36, C86, C87,C88, R91, R92,R93, R95, D10,Q10, L3(B) 1.8 V Supply Confirma-tionVDD1 1. Confirm that the voltage between test point VDD1 and GND is 1.8 V ± 0.02 V.2. Execute the command “VDD”, then check the current value.3. Adjust the 1.8V voltage of VDD1 executing command “VDD XX“(XX is thevalue).Q8, C75, C614,C61, IC7(C) Charge Pump2.5V Supply Confirma-tionVDD5 1. Confirm that the voltage between test point VDD5 and GND is 2.5 V -0.1/+0.3V.IC7,C625,C631(D) Charge Pump3.0V Supply Confirma-tionVDD4 1. Confirm that the voltage between test point VDD4 and GND is 3.0 V ± 0.2 V. IC7,C616,C630(E)* BBIC Confirmation - 1. BBIC Confirmation (Execute the command “getchk”).2. Confirm the returned checksum value.Connection of checksum value and program number is shown below.IC7, X1, R77,RA80(F)* EEPROM Confirmation - 1. EEP-ROM Confirmation (Execute the command "sendchar EPV").2. Confirm the returned Value(Value for reference is written at "EEPROM C/SUM" in Software_Version_Table.xls).IC7, RA402,C51, R657,IC401(G)* BBIC Clock Adjustment CLK 1. Input Command “ sendchar WWD ff 48 IC 8006”2. Confirm that the voltage between testpoint VDD4 and GND is less than 1.0 V.3. Input Command “ sendchar sfr”, then you can confirm the current value.4. Check X’tal Frequency. (10.368 MHz ± 100 Hz).5. If the frequency is not 10.368MHz ± 100Hz, adjust the frequency of CLK exe-cuting the command “sendchar sfr xx xx (where xx is the value)” so that thereading of the frequency counter is 10.368000 MHz ± 5 Hz.X1, IC7, R430,C305