Related Manuals for Nokia NSD-6
Summary of Contents for Nokia NSD-6
- Page 1 Programmes After Market Services NSD-6 Series Transceivers Disassembly/Troubleshooting Instructions Nokia Mobile Phones Ltd. Issue 1 04/01...
- Page 2 NSD-6 Disassembly/Troubleshooting Instructions PAMS Technical Documentation Nokia Mobile Phones Ltd. Page 2 Issue 1 04/01...
-
Page 3: Table Of Contents
In the field ........................14 Battery will not charge ....................14 Audio failures ......................15 List of Test Points ......................16 Test Point Diagrams ....................19 RF Troubleshooting ..................... 20 WinTesla General Set Up .................... 20 Nokia Mobile Phones Ltd. Issue 1 04/01 Page 3... - Page 4 Description of Test ....................36 Definition of Result....................37 Manual Verification ....................37 Troubleshooting ...................... 37 800 CDMA Tuning Rx IF Compensation ..............38 Description of Test ....................38 Definition of Result....................38 Nokia Mobile Phones Ltd. Page 4 Issue 1 04/01...
- Page 5 Troubleshooting ...................... 42 1900 CDMA Tuning Rx IF Compensation ...............42 Description of Test ....................42 Definition of Result....................42 Manual Verification ....................43 Troubleshooting ...................... 43 Test Point Values ......................44 Nokia Mobile Phones Ltd. Issue 1 04/01 Page 5...
- Page 6 Press strongly towards arrow direction Carefully remove A–cover Note snap fixings ! Remove back cover screws (4 pcs) Remove C–cover NOTE! When assembling the B cover screws, use 17 Ncm torque. Nokia Mobile Phones Ltd. Page 6 Issue 1 04/01...
- Page 7 Note: When the phone is disassembled (opened), please be careful NOT to TOUCH the antenna clip (x703) or the antenna ground clip (x704). During re-assembly, ensure that the clips are not damaged. Nokia Mobile Phones Ltd. Issue 1 04/01 Page 7...
-
Page 8: Troubleshooting
1.500V. The phone uses the 1.251V reference, so once flash software is running Vref must switch to 1.251V. Check Vref at TPD6. Valid voltages are 1.478 – 1.523V and 1.244 – 1.258V, respectively. Nokia Mobile Phones Ltd. Page 8 Issue 1 04/01... -
Page 9: Linear Regulators
Valid voltages are 4.8V to 5.2V, and it can be checked at TPD16. 2. VSIM (3V_5V) VSIM is powered by the same switch mode regulator as V5V, however, it is switchable Nokia Mobile Phones Ltd. Issue 1 04/01 Page 9... -
Page 10: A/D Conversion
Each of the regulators, P1–P5, should have output voltages between 2.7V and 2.85V (2.8V nominal). These can be checked at the following test points. a) P1 – TPD18 Nokia Mobile Phones Ltd. Page 10 Issue 1 04/01... -
Page 11: External Regulators
1Hz or at 32Hz, with varying duty cycles, and should only be active when a charger is detected. The frequency should be 1Hz when an ACP–7 is detected and 32Hz when an ACP–9 is detected. To verify correct operation of CHAPS, monitor the charging current Nokia Mobile Phones Ltd. Issue 1 04/01 Page 11... -
Page 12: Cafe
CAFÉ pins. Transmit I and Q RF signals [TXIQ(3:0)] can be seen at pins 55, 56, 59, and 60 and C201, C204, C222, and C224. Nokia Mobile Phones Ltd. Page 12 Issue 1 04/01... -
Page 13: Mad4
UI software, mode control, interfaces to MBUS, downloads code to flash, reads and writes the EEPROM, controls charging, and interprets A/D data from CCONT. (Used only in NSD–3AW [and NDS–1AW] NBA chip is used in synchronization between MAD4 and SRAM.) Nokia Mobile Phones Ltd. Issue 1 04/01 Page 13... -
Page 14: Memories
If the battery won’t charge (phone won’t allow the battery to charge), check CHAPS and the charging circuit. It may also be necessary to verify the A/D functionality of CCONT since this is the method of detecting battery type, charger type, etc. Nokia Mobile Phones Ltd. Page 14 Issue 1 04/01... -
Page 15: Audio Failures
Tx voice data is then sent back to CAFÉ on the TXD bus (See schematic). See the Baseband section of the Service Manual for more detail on RXD bus usage. Tx voice data is then sent to RF on the TXIQ bus (CDMA) or AMPSMOD (AMPS). Nokia Mobile Phones Ltd. Issue 1 04/01 Page 15... -
Page 16: List Of Test Points
From CCONT to CELL Transmitter 2.8 V typical (2.67 –2.85 V) From CCONT to CAFE 0 / 2.8 V typical (2.67 –2.85 V) From CCONT to RF Synthesizer Vr7a 0 / 2.8 V Nokia Mobile Phones Ltd. Page 16 Issue 1 04/01... - Page 17 Serial bus from MAD4 to the Bottom Connector L_Gnd From Bottom Connector, through an inductor to Phone Ground BTEMP Variable DC From Battery terminal to CCONT VCHAR Vin divided by 10 From System connector to CHAPS and CCONT Nokia Mobile Phones Ltd. Issue 1 04/01 Page 17...
- Page 18 Analog data (voice) From CAFÉ to RF section Address (23:0) 0 / 2.8 V From MAD4 to Flash and RAM Data (15:0) 0 / 2.8 V From MAD4 to Flash and RAM Nokia Mobile Phones Ltd. Page 18 Issue 1 04/01...
-
Page 19: Test Point Diagrams
NSD-6 PAMS Technical Documentation Disassembly/Troubleshooting Instructions Test Point Diagrams Nokia Mobile Phones Ltd. Issue 1 04/01 Page 19... -
Page 20: Rf Troubleshooting
Select “Configure” and “Frequency Plan”. You will then be able to see and also change the default AMPS and CDMA Channels. The cable loss should also be entered here. Nokia Mobile Phones Ltd. Page 20 Issue 1 04/01... -
Page 21: Testing Menu
“AMPS/Baseband Tuning”. This automatically sets the receiver on and the transmit- ter on Channel 380 Power level 3. The transmitter power level can be set by selecting the “Power Level”. The TX_LIM_ADJ Nokia Mobile Phones Ltd. Issue 1 04/01 Page 21... -
Page 22: Cell Band Cdma Fault Finding Setup
The transmitter is switched off by clicking the “Tx Off” Box. The RX_IF_AGC is read by clicking the “Read” button. The LNA defaults to ON and OFF can be switch by ticking the “LNA” box. Nokia Mobile Phones Ltd. Page 22 Issue 1 04/01... -
Page 23: Pcs Band Cdma Fault Finding Setup
In all the tunings WinTesla will prompt you with the equipment settings. At the end of the tuning WinTesla will give you the option to save the new tuning values to EEPROM or to exit without saving new values to EE-PROM. Nokia Mobile Phones Ltd. Issue 1 04/01 Page 23... -
Page 24: Amps Tuning Afc
If this is not done, then the tuning will not be accurate. Definition of Result The result of this tuning is the AFC PDM stored to eeprom which puts the VCTCXO at the correct frequency. Manual Verification Use WinTesla as follows: Nokia Mobile Phones Ltd. Page 24 Issue 1 04/01... -
Page 25: Troubleshooting
Channel 550. It is very important to tune the transmitter using Channel 550; otherwise, the maximum allow- able power may be exceeded. Nokia Mobile Phones Ltd. Issue 1 04/01 Page 25... -
Page 26: Definition Of Result
NOTE: This window was taken from WinTesla with the cable loss set at 0.7dB. The power levels tuned at the phones RF connector are: Nom.power Power NSD-6HX Range level NSD-6GX 0–2 26.2 dBm +/– 0.15 dB Nokia Mobile Phones Ltd. Page 26 Issue 1 04/01... -
Page 27: Troubleshooting
Tx VHF LO Measured at TIF N604 Pin 3 (TP105) with a Hi Z Probe: UHF Cel LO measured at Odyssey N703 Pin 2 (TP106) with Hi Z probe when set to Chan- nel 384: Nokia Mobile Phones Ltd. Issue 1 04/01 Page 27... -
Page 28: Amps Tuning Tx Modulation Index
Click the WinTesla Help button for equipment set up. Definition of Result The result is the DSP Gain, which gives 2KHz +/–0.05KHz peak deviation at the RF out- put. This DSP Gain is stored to eeprom. Nokia Mobile Phones Ltd. Page 28 Issue 1 04/01... -
Page 29: Manual Verification
The reported result is the ADC value from CCONT. For RSSI Lo the result should be between 570 and 970 and is stored to eeprom under the handle RF_TUNE_AMPS_RSSI_LO_HANDLE. For RSSI Hi result should be between 750 and 1050 Nokia Mobile Phones Ltd. Issue 1 04/01 Page 29... -
Page 30: Manual Verification
Z708 and RIF N702. Check the Rx VHF LO RIF N702 Pin 20 (TP107) see below. Also check RIF 450KHz output LIM_P Measured at RIF Pin 17 (TP108) and the RSSI voltage at RIF N702 Pin 16 (TP109) which indicates the signal level into the receiver. Nokia Mobile Phones Ltd. Page 30 Issue 1 04/01... - Page 31 PAMS Technical Documentation Disassembly/Troubleshooting Instructions Rx VHF LO Measured at RIF N702 Pin 20 (TP107) with a Hi Z Probe: LIM_P Measured at RIF Pin 17 (TP108) with a 10 Mohm probe: Nokia Mobile Phones Ltd. Issue 1 04/01 Page 31...
-
Page 32: Amps Tuning Rx Audio Gain
Gain is then stored to eeprom. Definition of Result The stored eeprom value will result in 57.4mV RMS at XEAR when using JBA4 and receiv- ing an RF signal with 1KHz tone and 2.9KHz deviation. Nokia Mobile Phones Ltd. Page 32 Issue 1 04/01... -
Page 33: Manual Verification
Point 1, when this is done the process must be repeated for Points 2 and 3. Definition of Result The results of the 3 point tuning are the 16 slope and offset values, which are stored to eeprom RF_TUNE_CELL_TX_AGC_OFF-SET_ SLOPE_HANDLE. Nokia Mobile Phones Ltd. Issue 1 04/01 Page 33... -
Page 34: Manual Verification
NOTE: If any of these components are damaged and are replaced then the Tx IF AGC must be retuned. Tx Output spectrum at RF Connector with 30dB attenuator on Spectrum Analyzer: Nokia Mobile Phones Ltd. Page 34 Issue 1 04/01... -
Page 35: 800 Cdma Tuning Lna Switch
RX_IF_AGC is allowed to readjust itself to again make the best use of the CAFÉ ADC and the RX_IF_AGC is read a second time. The result is the Gain delta between High Gain and Nokia Mobile Phones Ltd. Issue 1 04/01... -
Page 36: Definition Of Result
After test a 2 order approximation is made and the Offset and Slope are computed. This tuning is done by putting signal level 1 into the receiver, the RX_IF_AGC will then Nokia Mobile Phones Ltd. Page 36 Issue 1 04/01... -
Page 37: Definition Of Result
RX_IF_AGC RIF Pin 7 (TP112) changes as the receiver input signal level is adjusted. NOTE: If any of these components are damaged and are replaced then the Rx IF AGC second order curve must be retuned. Nokia Mobile Phones Ltd. Issue 1 04/01 Page 37... -
Page 38: 800 Cdma Tuning Rx If Compensation
CAFÉ ADC. The setting of RX_IF_AGC is then read from the phone at each of the five frequencies. Definition of Result The five different values of RX_IF_AGC are stored to EEPROM. Manual Verification Use WinTesla as follows: Troubleshooting See section 800 CDMA Tuning Rx IF AGC Nokia Mobile Phones Ltd. Page 38 Issue 1 04/01... -
Page 39: 1900 Cdma Tuning Tx If Agc
PA N606 output Pins 11,12,13 and 14 (TP113) are not shorted to ground. If this is the case PA must be replaced. Also it is likely that inductor L611 has burnt out and has open circuit. Check the switch to Nokia Mobile Phones Ltd. Issue 1 04/01 Page 39... -
Page 40: 1900 Cdma Tuning Lna Switch
The displayed result is the High Gain – Low Gain delta in dB after applying the PDM dif- ference to the previously computed 3–point curve fit. This delta should be between 21 and 30dB. It is stored to eeprom handle RF_TUNE_RX_GS_HANDLE. Manual Verification Use WinTesla as follows: Nokia Mobile Phones Ltd. Page 40 Issue 1 04/01... -
Page 41: Troubleshooting
This process is then repeated for signal levels 2 and 3. Definition of Result The results of the three point tuning are the 16 slope and offset values which are stored to eeprom RF_TUNE_PCS_RX_AGC_OFF-SET_ SLOPE_HANDLE. Nokia Mobile Phones Ltd. Issue 1 04/01 Page 41... -
Page 42: Manual Verification
CAFÉ ADC. The setting of RX_IF_AGC is then read from the phone at each of the six frequencies. Definition of Result The five different values of RX_IF_AGC are stored to EEPROM. Nokia Mobile Phones Ltd. Page 42 Issue 1 04/01... -
Page 43: Manual Verification
NSD-6 PAMS Technical Documentation Disassembly/Troubleshooting Instructions Manual Verification Use WinTesla as follows: Troubleshooting See section 1900 CDMA Tuning Rx IF AGC. Nokia Mobile Phones Ltd. Issue 1 04/01 Page 43... -
Page 44: Test Point Values
UHF LO from VCO to Apache up converter N601 Pin 6 Penta P5 0v or 2.7 from Penta P5 to PCS LNA Control for PCS LNA from Penta for LNA OFF or ON N303 Pin 9 Nokia Mobile Phones Ltd. Page 44 Issue 1 04/01...