Nokia Customer Care RH-53/54 7-Troubleshooting Instructions ISSUE 1 09/2004 Copyright © 2004 Nokia Corporation. All Rights Reserved.
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RH-53/54 Nokia Customer Care Table Of Contents Page No Baseband Troubleshooting................................................................................ 7 Baseband test points ......................................................................................... 7 Troubleshooting diagrams ................................................................................. 8 Phone is dead ....................................................................................................
RH-53/54 Nokia Customer Care General Instructions for GSM1800 RX Troubleshooting ................................ 48 RH-53/54 Transmitter Troubleshooting........................................................... 53 Measurement points for the transmitter ........................................................ 53 General instructions for TX troubleshooting ................................................... 54 Troubleshooting chart for GSM900 transmitter ..............................................
RH-53/54 Nokia Customer Care Fig 22 Fig 23 Fig 24 Fig 25 Fig 26 Fig 27 Fig 28 Fig 29 Fig 30 Fig 31 Fig 32 Fig 33 Fig 34 Fig 35 Fig 36 Fig 37 Fig 38 Fig 39 Fig 40 Fig 41 Fig 42 Fig 43 Fig 44 Fig 45 Fig 46 Fig 47 Fig 48 Fig 49 Fig 50 Fig 51 Fig 52 Fig 53 Fig 54 Fig 55 Fig 56 Fig 57 Fig 58 Fig 59 Fig 60 Fig 61 Fig 62 Fig 63 Fig 64 Fig 65 Fig 66 Measurement points for Synthesizer.......................................................... 34 Measurement points for the VCO........................................
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RH-53/54 Nokia Customer Care Baseband Troubleshooting ■ Baseband test points Figure 1:BB test points ISSUE 1 09/2004 COMPANY CONFIDENTIAL Copyright © 2004 Nokia. All Rights Reserved.
RH-53/54 Nokia Customer Care Figure 2:BB test points 2 ■ Troubleshooting diagrams INOTE : Since both D200 (UEM) and D400(UPP) are underfilled, they can not be replaced. If either D200 or D400 is defective, the whole PWB has to be discarded. 8 COMPANY CONFIDENTIAL Copyright © 2004 Nokia. All Rights Reserved.
RH-53/54 Nokia Customer Care ■ Phone is dead This means that the phone do not draw any current at all when supply is connected and/or powerkey is pressed. It is assumed that the voltage supplied is 3.6 VDC. The UEM will prevent any functionality what so ever at battery/supply levels below 2.9 VDC.
RH-53/54 Nokia Customer Care ■ Flash programming does not work The flash programming can only be done via the pads on the PWB (J396). In case of Flash failure in FLALI station, problem is most likely related to SMD problems. Possible failures could be short-circuit of balls under µBGAs (UEM, UPP, FLASH). Missing or misaligned components. In flash programming error cases the flash prommer can give some information about a fault.
RH-53/54 Nokia Customer Care ■ Power does not stay on or phone is jammed If this kind of failure is presenting itself immediately after FLALI, it is most likely caused by ASICs missing contact with PWB. If for some reason the MCU does not service the watchdog register within the UEM, the operations watchdog will run out after approximately 32 seconds. Unfortunately, the service routine can not be measured.
RH-53/54 Nokia Customer Care ■ Display information : "Contact Service" This error can only happen at power up where several self-tests is run. If any of these test cases fails the display will show the message: "Contact Service". It's individual test cases so the below lineup of error hunting's has no chronological order. Use common sense and experience to decide which test case to start error hunting at.
RH-53/54 Nokia Customer Care ■ The phone does not register to the network, or the phone cannot make a call If the phone doesn't register to the network, the fault can be in either BB or RF. Only few signals can be tested since several signals is 'burried' in one or more of the inner layers of the PWB. First of all check that SIM LOCK is not causing the error by using a Test-SIM card and connect the phone to a tester.
RH-53/54 Nokia Customer Care ■ Charging troubleshooting Figure 8:Phone is OFF:no current from charger Phone is OFF - battery is completely empty (<=3,1VDC) and no current from charger when connected L100 VCHAR > 2,1VDC Check : No F100, L100, V100, C100, R200, System-connector. No F100, L100, V100, C100, R200, System-connector.
RH-53/54 Nokia Customer Care Figure 9:Display info:charger connected, not charging Display info when charger is connected : "Not charging" R206 Voltage on R206 towards D200 is ~0,8VDC when power is connected. No Check : X105, R202, R206, C240. Yes R207 Voltage (use scope) on R207 towards D200 is ~0,9VDC at peak. No Check : X105, R202, R207, C220. Yes R200 Voltage on R200 towards D200 same as VBAT voltage Check : No R200, PWB.
RH-53/54 Nokia Customer Care ■ Audio troubleshooting 1, 2 Figure 10:Microphone does not work Microphone do not work and the isn't any mechanical problem Z100 Check Z100 is working correctly (no short/open-circuit) No Replace : Z100 Replace : Mic and micboot Error still present R165 Check voltage level on R165 towards UEM (bias) = 2,1V Check : No R165, C168, PWB. Else defctive D200* No R153, R157,C151, C152, C153, C154,R171, PWB.
RH-53/54 Nokia Customer Care ■ Audio troubleshooting 3: Headset does not work Figure 12:Headset does not work Headset microphone do not work and the isn't any mechanical problem Z101 Check Z101 is working correctly (No short/open circuit) No Replace : Z101 Yes R151 Check voltage level on R151 towards UEM (bias) = 1,0V - 1,4V No Check : R166, R151, C171 Yes R151 Check voltage level on R151 towards UEM (bias) = 1,0V 1,4V Check XMIC line to UEM (D200) Check : No R156, C170, C174, C172, R169 Error s
RH-53/54 Nokia Customer Care Upper block failures All checks can be done while the phone is partially disamsembled (no need for full reasembly inbetween debugging steps): SIM failure (including insert SIM faults) 1. Flex B2B connector pressed in? 2. Change LCD can assembly (for new flex) works? 3. C314 (VSIM cap) short circuitting? 4. C313 (SIMIO cap) short circuitting? 5. Voltages (SIM startup sequence)? Board to Board connector pin17 6.
RH-53/54 Nokia Customer Care The error ”SIM card rejected” means that the ATR message received from SIM card is corrupted, e.g. data signal levels are wrong. The first data is always ATR and it is sent from card to phone. For reference a picture with normal SIM power-up is shown below. Normal SIM power-up sequence Ch1 : VSIM Ch2 : RESET Ch3 : CLOCK Ch4 : DATA Vibra failure 1. Flex B2B connector pressed in? 2. Change C2 cover assembly(new vibra)/Vibra works? 3.
RH-53/54 Nokia Customer Care Figure 13:Vibra troubleshooting Start Is there any vibration? No Yes Is there sufficient vibration? No Wrong setting or software error. Contact problem. Mechanical problem - counterweight is blocked Defective or missing vibra. Defective UEM. Software error Contact problem. Defective vibra. Defective UEM. Yes Vibra is constantly switched on? Yes Software error. Defective UEM. Short circuit. No Intermittent vibration? Yes Bad connection. Defective vibra.
RH-53/54 Nokia Customer Care 2. C2 cover mounted correct (red snap not vissible)? 3. Check if system connector is misplaced slightly? 4. Check for ”headset inserted symbol” in display? 5. Change speaker chamber/antenna works? 6. Change LCD can assembly (for new flex) works? 7. Change main PWB (UEM)? Display failure 1. Flex B2B connector pressed in? 2. Display B2B connector pressed in (press through hole in C2 cover assembly)? 3. Change display works? 4. Change LCD can assembly (for new flex) works? 5.
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RH-53/54 Nokia Customer Care Introduction to RH-53/54 RF Troubleshooting Three types of measurements are used in the following. It will be specified if the measurement type is "RF" “RF test” or "LF". • RF measurements should be done with a GSM tester and a suitable connector to the general RF input/output. That connection is for tuning and testing the whole RF in the phone. • RF test measurements should be done with a Spectrum Analyzer and a high-frequency 500ohm passive probe, for example HP54006A.
RH-53/54 Nokia Customer Care General description of the RF circuits In the following general desriptions different colours are used in the block diagram. The Lowband signal route is shown in red, the Highband route in green and the common signal lines are shown in blue. ■ Receiver signal path The signal from the antenna pad is routed to the Front End Module (FEM - N700).
RH-53/54 Nokia Customer Care order to control the TX level a sample of the signal is taken in the FEM and used in the power loop amplfier in Mjoelner to establish the right output power. The selection of which amplifier chain in the FEM to be active is controlled through the 4 controllines VC1, VC2, BS and Vtx.
RH-53/54 Nokia Customer Care is supplied to the reference divider (RDIV) where the frequency is divided by 65. The output of RDIV (400kHz) is used as reference clock for the Phase Detector (ϕ). The PLL synthesizer is a feedback control system controlling the phase and frequency of the LO-signal. Building blocks for the PLL are: Phase detector, Charge Pump, Voltage Controlled Oscillator (VCO), N-Divider and loopfilter. As mentioned earlier only the VCO and loopfilter is external to the Mjoelner IC.
RH-53/54 Nokia Customer Care Figure 16:Frequency plan To PCN RX mixer ASIC 2 2 To GSM RX mixer 2 2 VDDLO VDDPLL 1/2 VDDPRE 1/4 VDDCP 64/ 65 ϕ NDIV ADIV Charge Pump 1/4 1/2 CPOUT Lock Detect LOCNT REFCNT RDIV VDDXO Synth supply filter PLL loop filter VCXO supply filter Buffer 2 2 To PCN Modulator 2 VCXO Bias R2H/R2 2 To GSM Modulator VXO VR3 REFOUT REFOUT 1/2 VR5 Vcp supply filter VDDBBB Buf/ AGC VPLL XTALM XTALP INPLO 26MH z VVCO VR7 Mjoelner N600 VDDRXBB Main Bia
RH-53/54 Nokia Customer Care ■ RF Key component placement Figure 17:RF key component placement Table 2: Key component placement tABLE N600 Mjoelner RF IC Z601 PCN RX SAW High band RX SAW filter Z602 EGSM RX SAW Low band RX SAW filter Z603 EGSM TX SAW Low band TX SAW filter B600 26 MHz crystal G600 VCO ( 3.6 GHZ VCO ) N700 Front End Module (FEM) X700 RF connector 28 COMPANY CONFIDENTIAL Copyright © 2004 Nokia. All Rights Reserved.
RH-53/54 Nokia Customer Care Troubleshooting ■ Common circuit The power supply and the synthesiser is common for RH53/54, except for the synthesiser ranges. Power Supply Configuration All power supplies for the RF Unit are generated in the UEM IC (D200). All power outputs from this IC have a decoupling capacitor at which the supply voltage can be checked. The power supply configuration used in the phone is shown in the block diagram below: Figure 18:Power supply configuration Internal Mjoelner VR2 2.
RH-53/54 Nokia Customer Care The names to the left are the signal names used on the RF schematics Table 3: Supply names Supply name RF Supply name UEM Min Typ Max Unit VCP VR1A 4.54 4.75 4.9 V VTX VR2 2.64 2.78 2.86 V VXO VR3 2.64 2.78 2.86 V VPLL VR5 2.64 2.78 2.86 V VRX VR6 2.64 2.78 2.86 V VVCO VR7 2.64 2.78 2.86 V VBB VIO 1.72 1.8 1.88 V VREF2 VrefRF01 1.334 1.35 1.366 V VBATT BATTERY 3.1 3.6 5.
RH-53/54 Nokia Customer Care ■ General instructions for Synthesizer troubleshooting Start the Phoenix-Service-Software and Select:ProductRH53/54 or scan Select:Testing RF Controls Band XX, se table below Active UnitRX Operation ModeContinuous RX/TX ChannelYY se table below The signal from the VCO is measured at R640 using a spectrum analysator and a 500ohm passive probe. The frequency should be as found in the table below and the power should be around –20dBm.
RH-53/54 Nokia Customer Care Example Signal Measured at VCXO output (R420) Figure 20:Measured signal at VCXO output VCO The VCO is generating frequencies in the range of 3420.4MHz – 3839.2 MHz for the RH-53 and in the range 3296.8 to 3979.6 MHz for RH-54 when the PLL is running. The output frequency from the VCO is led to the Local oscillator input of the Mjoelner IC (N600), where the frequency is divided either by 2 or 4 in order to generate all channels in EGSM and PCN respectively.
RH-53/54 Nokia Customer Care ■ Troubleshooting chart for the Synthesizer Figure 21:Troubleshooting chart for synthesizer From Phoenix chose: File > product > RH-53/54 Maintenance > Testing > RF controls > band > RX > continous > channel Spectrum analyser VCO frequency (R640) MHz (see table) Yes Band and channel according to the previous table PLL block functional No Osciloskope VXO Power supply (C618) 2.78Vdc No Check UEM, SW Phone not in function Yes Osciloskope VXO Power supply (C620) 2.
RH-53/54 Nokia Customer Care If the phone stops working a short time after the power is turned ON, a possible reason for this might be the 26MHz system clock signal is not getting to the UPP clock-input in BaseBand. In this case check the following: Turn on the phone and check VCXO Power supply (C620) = 2.7V VCXO output (R420 – end not connected to C420) is 26MHz and approx. 700mVpp If this is not the case check the reference crystal (B600) and Mjolner (N600) as well as R420, R426, C420, C426.
RH-53/54 Nokia Customer Care Figure 23:Measurement points for the VCO Vctl VVCO (C624) VCO out (R640) ISSUE 1 09/2004 COMPANY CONFIDENTIAL Copyright © 2004 Nokia. All Rights Reserved.
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RH-53/54 Nokia Customer Care Receiver Troubleshooting ■ Front End Module (FEM) control signals Depending on the vendor of the Front End Module (FEM), different timing of the control signals are present. The SW suppoerts both FEMs. R629 tells the SW which FEM control should be active. Renesas FEM control is used when R629 is 18K and RFMD FEM control is used when R629 is 82K. If the FEM is exchanged with an other type, the R629 must be changed, too.
RH-53/54 Nokia Customer Care ■ Measurements points Measurement points for the receiver Figure 24:Measurement points for the FEM BS (C709) VTX (J700) RX1800 VC1 (C708) VC2 (C730) RX900 Figure 25:RX interface points between N600/SAW filters L610/612 END Z601out L602/603 END 38 COMPANY CONFIDENTIAL Copyright © 2004 Nokia. All Rights Reserved.
RH-53/54 Nokia Customer Care Figure 26:Serial Bus interface measurement points RESETX RFBUSDA Mjoelner seriel interface RFBUSSENX RFBUSCLK Figure 27:I/Q measurement points RXQP RXIP ISSUE 1 09/2004 RXQM RXIM COMPANY CONFIDENTIAL Copyright © 2004 Nokia. All Rights Reserved.
RH-53/54 Nokia Customer Care ■ RH-54 Receiver General Instructions for GSM850 RX Troubleshooting Connect the phone to a PC with the module repair jig. Start Phoenix and establish connection to the phone Select->File ->Scan for product->CTRL-R Select-> Testing -> RFcontrols Select: Table 7: Band values Band: GSM850 Active Unit: RX Operation Mode: Continuous Rx/Tx Channel: 190 AGC: 9 The setup should now look like this: Figure 28:RF controls 40 COMPANY CONFIDENTIAL Copyright © 2004 Nokia.
RH-53/54 Nokia Customer Care Figure 29:Troubleshooting chart for GSM850 receiver Apply -55dBm 881.6MHz (ch 190) Offset 67.71kHz from generator to X700 Osciloscope at RX I/Q. Signal 580mVpp DC offset 1.35V Freq. 67.
RH-53/54 Nokia Customer Care By measuring with an oscilloscope at RXIP or RXQP on a working GSM 850 receiver this picture should be seen Signal amplitude peak-peak 588 mV DC offset 1.33 V Figure 30:Measuring with oscilloscope 42 COMPANY CONFIDENTIAL Copyright © 2004 Nokia. All Rights Reserved.
RH-53/54 Nokia Customer Care ■ General Instructions for GSM1900 RX Troubleshooting Connect the phone to a PC with the module repair jig. Start Phoenix and establish connection to the phone Select->File ->Scan for product->CTRL-R Select-> Testing -> RFcontrols Select: Table 8: Band values Band: GSM1900 Active Unit: RX Operation Mode: Continuous Rx/Tx Channel: 661 AGC: 9 The setup should now look like this: Figure 31:Control values ISSUE 1 09/2004 COMPANY CONFIDENTIAL Copyright © 2004 Nokia.
RH-53/54 Nokia Customer Care Figure 32:Troubleshooting chart for GSM1900 receiver Apply -55dBm 881.6MHz (ch 190) Offset 67.71kHz from generator to X700 Osciloscope at RX I/Q. Signal 580mVpp DC offset 1.35V Freq. 67.
RH-53/54 Nokia Customer Care By measuring with an oscilloscope at RXIP or RXQP on a working GSM1900 receiver this picture should be seen Signal amplitude peak-peak 588 mV DC offset 1.33 Figure 33:Measuring with the oscilloscope ISSUE 1 09/2004 COMPANY CONFIDENTIAL Copyright © 2004 Nokia. All Rights Reserved.
RH-53/54 Nokia Customer Care ■ RH-53 Receiver General Instructions for GSM900 RX Troubleshooting Connect the phone to a PC with the module repair jig. Start Phoenix and establish connection to the phone Select->File ->Scan for product->CTRL-R Select-> Testing -> RFcontrols Select: Table 9: Band values Band: GSM900 Active Unit: RX Operation Mode: Continuous Rx/Tx Channel: 37 AGC: 9 The setup should now look like this: Figure 34:Control values 46 COMPANY CONFIDENTIAL Copyright © 2004 Nokia.
RH-53/54 Nokia Customer Care Figure 35:Troubleshooting chart for GSM900 receiver Apply -55dBm 942.4 MHz Offset 67.71kHz from generator to antenna pad Osciloskope at RX I/Q. Signal 588mVpp DC offset 1.35V Freq. 67.
RH-53/54 Nokia Customer Care By measuring with an oscilloscope at RXIP or RXQP on a working GSM900 receiver this picture should be seen Signal amplitude peak-peak 588 mV DC offset 1.33 V Figure 36:Measuring with oscilloscope General Instructions for GSM1800 RX Troubleshooting Connect the phone to a PC with the module repair jig. Start Phoenix and establish connection to the phone Select->File ->Scan for product->CTRL-R Select-> Testing -> RFcontrols 48 COMPANY CONFIDENTIAL Copyright © 2004 Nokia.
RH-53/54 Nokia Customer Care Select: Table 10: Band values Band: GSM1800 Active Unit: RX Operation Mode: Continuous Rx/Tx Channel: 700 AGC: 9 The setup should now look like this: Figure 37:Rf controls ISSUE 1 09/2004 COMPANY CONFIDENTIAL Copyright © 2004 Nokia. All Rights Reserved.
RH-53/54 Nokia Customer Care Figure 38:Troubleshooting chart for GSM1800 receiver Apply -55dBm 1842.8MHz (ch 700) Offset 67.71kHz from generator to X700 Osciloscope at RX I/Q. Signal 580mVpp DC offset 1.35V Freq. 67.
RH-53/54 Nokia Customer Care By measuring with an oscilloscope at RXIP or RXQP on a working GSM1800 receiver this picture should be seen Signal amplitude peak-peak 588 mV DC offset 1.33 Figure 39:Measuring with oscilloscope ISSUE 1 09/2004 COMPANY CONFIDENTIAL Copyright © 2004 Nokia. All Rights Reserved.
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RH-53/54 Nokia Customer Care RH-53/54 Transmitter Troubleshooting The troubleshooting of the transmitter for the different phones is similar, meaning that the low band, 850/900 MHz, has similar values and the high band, 1800/1900 MHz, has similar values. The only differences are which selection of product done in Phoenix.
RH-53/54 Nokia Customer Care Figure 42:TXP and TXC test points General instructions for TX troubleshooting Apply an RF-cable to the RF-connector to allow the transmitted signal act as normal. RF-cable should be connected to measurement equipment or to at least a 10-dB attenuator, otherwise the PA may be damaged. Start Phoenix Service Software and: Establish a connection to the phone e.g. FBUS.
RH-53/54 Nokia Customer Care Select: Table 11: Band values Band: XX Active Unit: TX Operation Mode: Burst Rx/Tx Channel: YY TX Power level ZZ TX Data Type Random Select ”XX” , ”YY” and ”ZZ” according to the table below Table 12: Values Phone XX YY ZZ RH-54 GSM850 189 5 RH-53 GSM900 37 5 RH-53 GSM1800 700 0 RH-54 GSM1900 661 0 Your screen should look like this: Figure 43:Control values ISSUE 1 09/2004 COMPANY CONFIDENTIAL Copyright © 2004 Nokia. All Rights Reserved.
RH-53/54 Nokia Customer Care Measure the output power of the phone; it should be around 32.5 dBm for low band and 29.5 dBm for highband. Remember the loss in the jig; around 0 dB for the low band and 0.1 dB for the high band. Troubleshooting chart for GSM900 transmitter For the spectrum analyzer measurements in the following chart use the 500ohm passive probe giving an approximately 20 dB lower reading than indicate in the following figures.
RH-53/54 Nokia Customer Care Figure 45:Signals 32.5 dBm (29.5 dBm) + 2 dBm Attenuator R714 (R711) FEM N700 + 4 dBm Z603 (T600) TXC (R620) Max PW 1.6V Min PW 0.6 V VC1 VC2 VTX BS TXP (C646) 2.7V Vpc R712 Max PW: 1.2 Vdc Min PW: 0.65 Vdc Opamp (C644) Max PW 1.2 V Min PW 0.65 Mjoelner N600 Det Max PW: 1.13 vdc Min PW: 0.
RH-53/54 Nokia Customer Care RFMD FEM logic Table 14: RFMD FEM logic Vtx BS VC1 VC2 Mode VTX_B_P VTX_B_P Vant1 Vant2 Idle 0 0 0 0 Low Band RX 0 0 1 0 Low Band TX 1 0 1 0 High Band RX 0 1 1 0 High Band TX 1 1 1 0 Analog Power control signals (TXC, VPC, VDET) The pictures in the following page show the typical shapes of the control signals low band, right side it for highest power – left side for lowest power.
RH-53/54 Nokia Customer Care Figure 46:Power control signals High Power Low Power TXC TXC VPC VPC VDET VDET ISSUE 1 09/2004 COMPANY CONFIDENTIAL Copyright © 2004 Nokia. All Rights Reserved.
RH-53/54 Nokia Customer Care I/Q signals The following diagrams show different situations of TX IQ measurements. Depending on the time the modulation may cause the signal to look different. 60 COMPANY CONFIDENTIAL Copyright © 2004 Nokia. All Rights Reserved.
RH-53/54 Nokia Customer Care Alignment ■ Manual alignment with Phoenix The alignment/calibration is the same in both GSM900/850 and GSM1800/1900 except for the channels and frequencies. Only the the procedures for GSM900/GSM1800 are shown. In Phoenix select connection Fbus scan product. If you power up the board before selecting Fbus, it works without any error messages. Use Jig or other device for RF and bus connection. Attenuation in the probe alone is 0dB for 900 and 0.1dB for 1800.
RH-53/54 Nokia Customer Care Follow the description in Phoenix, setting up the signal generator as described Figure 48:Calibration tuning Press the OK button Figure 49:Calibration tuning Press the Save&Continue botton. 62 COMPANY CONFIDENTIAL Copyright © 2004 Nokia. All Rights Reserved.
RH-53/54 Nokia Customer Care Follow the description in Phoenix, setting up the signal generator as described Figure 50:Calibration tuning Press the OK button Figure 51:Calibration tuning ISSUE 1 09/2004 COMPANY CONFIDENTIAL Copyright © 2004 Nokia. All Rights Reserved.
RH-53/54 Nokia Customer Care Press the Save&Continue botton Note! You have to follow the shown procedure. It is not possible to tune the high band alone. You need to make a tuning of the low band first to come to the high band. You can stop at any time by switching off the menu. If the values are outside internal specs, you can not save them and have to leave the tuning without saving. ■ RX Band Filter Response Normally not needed in repair.
RH-53/54 Nokia Customer Care Set the spectrum analyser or GSM tester for the required settings and press “OK” If a GSM tester is used, set the TX data type to random so that the tester can trig on the signal. Figure 54:TX tuning Tune the highlighted values to the wanted power (Use average burst power) Tune the base level to –25dBm When done press Save&Continue and Phoenix will automatically shift from lowband to highband.
RH-53/54 Nokia Customer Care Set the spectrum analyser or GSM tester for the required settings and press “OK” . If a GSM tester is used, set the TX data type to random so that the tester can trig on the signal. Figure 56:TX tuning Tune the highlighted values to the wanted power (Use average burst power). Tune the base level to –25dBm. When done press Save&Continue. The intermediate results are then calculated. The procedure has to be followed. First low band tuning and then high band tuning.
RH-53/54 Nokia Customer Care Figure 57:i/Q tuning Press Start Figure 58:I/Q tuning ISSUE 1 09/2004 COMPANY CONFIDENTIAL Copyright © 2004 Nokia. All Rights Reserved.
RH-53/54 Nokia Customer Care Set the spectrum analyser or GSM tester for the required settings and press “OK” Figure 59:I/Q tuning Begin tuning with data from selected place. Tune DC offset values to lowest carrier. Use Side arrows or +, - . Tune Amplitude and phase to lowest sideband. When satisfied with the result, press Next. (The sidebands should hardly be visible).Or for CMU200 the supression should be better than -40dBc. Figure 60:I/Q tuning 68 COMPANY CONFIDENTIAL Copyright © 2004 Nokia.
RH-53/54 Nokia Customer Care Set the spectrum analyser or GSM tester for the required settings and press “OK” Figure 61:I/Q tuning Press Start to begin tuning with data from selected place. Tune DC offset values to lowest carrier. Use Side arrows or +, - . Tune Amplitude and phase to lowest sideband. When satisfied with the result, press Finish. (The sidebands should hardly be visible). ■ RF control The purpoase is to check the receiver or transmitter without going in call.
RH-53/54 Nokia Customer Care Autotune (RH-53 with CMU200) ■ File adjustments Edit the file RH_53_tunings.ini and save it in the product folder under Phoenix with the right name. It defines the target values for the tunings which need targets or can be a general one that only needs small updates for the values that might change (e.g. the base target). Edit the file autotune_RH-53.ini and save it in the product folder under Phoenix with the right name.
RH-53/54 Nokia Customer Care With a PKD-1NS dongle the loss in cables and jigs has to be set, and the jig type must be defined to the product. When that is done the PKD-1 donkle can be used, and the losses can not be changed with that dongle. Figure 64:Set loss Select or add a jig and define the losses Figure 65:Set loss 2 ISSUE 1 09/2004 COMPANY CONFIDENTIAL Copyright © 2004 Nokia. All Rights Reserved.
RH-53/54 Nokia Customer Care Make sure the product has the right type of jig. (At the moment new products like RH-54 can not be added) Figure 66:Set loss 3 Note! CMU200: Remember that CMU200 is left as it was set in the autotune. Attenuation settings are at 0. 72 COMPANY CONFIDENTIAL Copyright © 2004 Nokia. All Rights Reserved.
