Phoenix service software. Troubleshooting Note: Most of the baseband repair actions require removing the baseband shield. The shield must not be removed unless separately authorized by the program. Nokia Corporation Issue 1 05/2003 Confidential Page 5...
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Vbatt limits: 2.1V for internal state machine, 3V triggering whole startup • Regulator sequencing • HW "core" regulators "on": Vio, Vcore, VR3, Vflash1 • These regulators supply the processors, memory chip interfaces and clock source in RF • Reset releasing delay Nokia Corporation Confidential Page 6 Issue 1 05/2003...
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Initializes the DSP and concerning HW • Releases DSP reset -> DSP starts running Note: In the following figure, the RF_Clk frequency appears to be lower than 19.44MHz because of a too low oscilloscope sampling frequency (2kS/s). Nokia Corporation Issue 1 05/2003 Confidential Page 7...
The easiest way to check if the software is running when the phone takes an abnormal amount of current is to measure the cbusclk and Vcore. The Dbus clock (programmable 9.72MHz) is not automatically visible in the test and local modes. Nokia Corporation Confidential Page 8 Issue 1 05/2003...
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RH-21 CCS Technical Documentation Troubleshooting Figure 2: Fault tree, phone does not power up Nokia Corporation Issue 1 05/2003 Confidential Page 9...
UPP, takes over handling the MCUSW trans- fer to Flash. 10 12 volts can be supplied to Vpp (by the prommer) to speed up flashing. Nokia Corporation Confidential Page 10 Issue 1 05/2003...
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"The programming status response from the Phone Flash informs about fail." Cx81 "The Prommer has detected a checksum error in the mes- FbusTx from UPP->UEM->Prommer sage, which it has received from the Phone." Nokia Corporation Issue 1 05/2003 Confidential Page 11...
If charging fails when the ACP-9 or the LCH-9 is used, but works with ACP-7, ACP-8, and LCH-8, check that the charge control pin of the system connector is connected to the ground. Nokia Corporation Confidential Page 12 Issue 1 05/2003...
XEAR line. The Audio test box JBA-8 is needed. The Audio loop (Audio test/Hp In Ext Out) must be switched on by the Phoenix service software. This loop will connect audios only through the UEM. In this case, the Nokia Corporation Issue 1 05/2003 Confidential Page 13...
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3 Run the audio-loop self-test with Phoenix (BB Self Tests/ ST_EAR_DATA_LOOP_TEST). This loop will test the ear-data/mic-data lines between the UPP and the UEM. Earpiece or external microphone line does not work Figure 4: Fault tree, earpiece failure Nokia Corporation Confidential Page 14 Issue 1 05/2003...
2 The Ad-converter value of the hookint-line can be checked with the Xmic switch on an MJ-8 test jig. Changes normally from high to low when no accessory is connected. 3 When the headset HDC-5 is connected, the hookint-value should be between 600 and 800. Nokia Corporation Issue 1 05/2003 Confidential Page 15...
RH-21 Troubleshooting CCS Technical Documentation User Interface Display/Keyboard lights do not work Figure 8: Fault tree, Display/Keyboard lights Nokia Corporation Confidential Page 18 Issue 1 05/2003...
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RH-21 CCS Technical Documentation Troubleshooting Display does not work Figure 9: Fault tree, Display does not work Nokia Corporation Issue 1 05/2003 Confidential Page 19...
Note: Before changing ASICs or filters, all solderings and missing components must be checked visu- ally. After any possible component changes, the phone must be tuned with the Phoenix autotune SW . Path of the received signal Block level description of the receiver: Nokia Corporation Confidential Page 20 Issue 1 05/2003...
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"MCU ID message sending failed in the Phone." FbusTx from UPP->UEM->Prommer C105 "The Phone has not received Secondary boot codes Mbus from Prommer->UEM- length bytes correctly." >UPP(MbusRx) FbusRx from Prommer->UEM->UPP FbusTx from UPP->UEM->Prommer Nokia Corporation Confidential Page 26 Issue 1 05/2003...
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"The Phone has generated NAK signal during data block FbusTx from UPP->UEM->Prommer transfer." Cx85 "Data block handling timeout" Cx87 "Wrong MCU ID." RFClock UPP(Vcore) Startup Required startup for flashing Vflash1 VBatt flashing Nokia Corporation Issue 1 05/2003 Confidential Page 27...
Start Phoenix software and set phone to the Analog mode. Set channel 383 and Power level 2. Connect RF cable to EXT RF connector and connect cable to Spectrum analyze input, and measure RF level. Notice insertion loss of the cable and attenuations. Nokia Corporation Confidential Page 28 Issue 1 05/2003...
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RH-21 Troubleshooting CCS Technical Documentation TDMA800 The transmitter chain is exactly the same as AMPS mode, with the exception of the IPA current. Therefore it is important that AMPS has no faults. Nokia Corporation Confidential Page 30 Issue 1 05/2003...
Power control loop Basically power detection is done with the Power detector module and power control is done inside Safari. Power detection is basically similar for both bands, except both bands have individual couplers. Nokia Corporation Issue 1 05/2003 Confidential Page 31...
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18.5 19.3 19.3 14.5 15.3 15.3 10.5 11.3 11.3 -0.7 -0.7 -4.7 -4.7 NOTE: DAC VALUES MAY VARY ABOUT +/- 20% NOTE: TXPWRDET is difference between TX on burst and off burst. Nokia Corporation Confidential Page 32 Issue 1 05/2003...
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27.3 1771 21.5 1023 23.3 1228 17.5 19.3 13.5 15.3 11.3 -0.7 -4.7 NOTE: DAC VALUES MAY VARY ABOUT +/- 20% NOTE: TXPWRDET is difference between TX on burst and off burst. Nokia Corporation Issue 1 05/2003 Confidential Page 33...
All synthesizers use divided VCTCXO signal as a reference signal for Phase-locked loop to provide correct LO-frequency. Baseband also needs a reference signal where it can generate the necessary clock signals and VCTCXO output signal is also buffered and connected to UPP. Nokia Corporation Confidential Page 34 Issue 1 05/2003...
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RH-21 CCS Technical Documentation Troubleshooting Fault-finding chart for 19.44 MHz oscillator START HERE! Is VCTCXO Change oscillating? VCTCXO 2.No 19.44MHz 1.No Check voltage C792 2.78 V Check resistor R792 Nokia Corporation Issue 1 05/2003 Confidential Page 35...
Phase detector and RX parts. Before I/Q modulator frequency is divided by 2. Fault-finding chart for RX VHF VCO Measure oscillator frequency over L730 coil. Don´t connect probe to pads! AMPS, CH383 Nokia Corporation Confidential Page 36 Issue 1 05/2003...
In the upper band (TDMA1900), 2 GHz synthesizer frequency is fed straight to mixers. In the lower band (AMPS and TDMA800), 2 GHZ UHF VCO frequency signal is first divided by two inside Safari and then that divided signal is fed to mixers. The output frequency Nokia Corporation Issue 1 05/2003 Confidential Page 37...
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RH-21 Troubleshooting CCS Technical Documentation of the VCO depends on the DC control voltage, which is controlled by the PLL circuit inside Safari. Fault-finding chart for UHF Synthesizer Nokia Corporation Confidential Page 38 Issue 1 05/2003...