CCS Technical Documentation RH-12/RH-28 Series Transceivers 6(a) - Baseband Troubleshooting Instructions Issue 1 02/04 Nokia Corporation
RH-12/RH-28 Baseband Troubleshooting Instructions CCS Technical Documentation [This page left intentionally blank] Page 2 Nokia Corporation Issue 1 02/04
CCS Technical Documentation RH-12/RH-28 Baseband Troubleshooting Instructions Table of Contents Page No Introduction.................................................................................................................... 5 General Failures ............................................................................................................. 6 Phone is dead ...............................................................................................................
RH-12/RH-28 Baseband Troubleshooting Instructions CCS Technical Documentation [This page left intentionally blank] Page 4 Nokia Corporation Issue 1 02/04
CCS Technical Documentation RH-12/RH-28 Baseband Troubleshooting Instructions Introduction This document describes in overview the different hardware error possibilities for the RH-12/RH-28 phone. Not every possible hardware error is described in this document, but only those possible to correct.
RH-12/RH-28 Baseband Troubleshooting Instructions CCS Technical Documentation General Failures Phone is dead This means that the phone doesn’t use any current at all when supply is connected and/ or power key is pressed. It is assumed that the voltage supplied is 3,9Vdc. UEME will prevent any functionality at battery/supply levels below 2,9Vdc and the software will shut the phone down at 3,1Vdc. Figure 1: Phone is dead Phone is dead Yes Measure voltage on L260, L261, L262, L263, L264, L265 and L206.
RH-12/RH-28 Baseband Troubleshooting Instructions CCS Technical Documentation Flash programming doesn’t work The flash programming on RH-12/RH-28 boards is only possible via the pads on the PWB. In case of Flash failure in production (FLALI station), problem is most likely related to SMD problems. Possible failures could be Short-circuiting of balls under µBGAs (e.g. UEME, TIKUEDGE, SDRAM, FLASH), missing or misaligned components.
RH-12/RH-28 Baseband Troubleshooting Instructions CCS Technical Documentation Charging Failure Charging fails and no current drawn from 'charger' Yes Measure Vchar voltage on V101. Is it > 3,0V? NO Check: X101, F100, C121, V101, C102, C103 and PWB NO D200 (UEME) is faulty Yes END No Check: BSI: Battery (BL-5C), C100, R203, pwb and R206 BTEMP: R100, C101, R202, pwb and R207 No Check: R200, D200 (UEME) and pwb Yes Recalibrate charger circuitry and retest.
RH-12/RH-28 Baseband Troubleshooting Instructions CCS Technical Documentation Phone doesn’t stay on, or phone is jammed If this kind of a failure is presenting itself immediately after FLALI, it is most likely caused by ASICs missing contact with PWB. If the MCU doesn’t service the watchdog register within the UEME, the operations watchdog will run out after approximately 32 seconds. It is not possible to measure this service routine.
RH-12/RH-28 Baseband Troubleshooting Instructions CCS Technical Documentation Display Information: “Contact Service” When this error appears in the display it means that one or more of the internal baseband tests has failed. The baseband tests (self tests) are performed each time the phone is powered on. The self tests are divided into those performed while powering up (Start up tests) and the ones that can be executed with a PC using Phoenix (Runtime tests).
CCS Technical Documentation RH-12/RH-28 Baseband Troubleshooting Instructions Figure 4: Display Information: “Contact Service” Issue 1 02/04 Nokia Corporation Page 11
RH-12/RH-28 Baseband Troubleshooting Instructions CCS Technical Documentation Function Failures Camera Failure No picture No picture Module placed correctly? No Remove module Broken springs etc. in X900? No Reposition module Yes Yes Change X900 1.8V present at Z901? No Check for short circuit of C903, C902 or C291 Short circuits? No UEME or PWB FAILURE No UEME or PWB FAILURE No PWB or TIKU FAILURE No PWB or TIKU FAILURE Yes Yes Replace component 2.
RH-12/RH-28 Baseband Troubleshooting Instructions CCS Technical Documentation Data present at R913? No Check for short circuit of R913 Short circuits No CAMERA or PWB FAILURE No CAMERA or PWB FAILURE No TIKU or PWB FAILURE No TIKU or PWB FAILURE Yes Yes Replace component Clock present at R906 No Check for short circuit of R906 Short circuit? Yes Yes Replace component Clock present at R902? No Check for short circuit of R902 Short circuit? Yes Yes Replace component Data present
RH-12/RH-28 Baseband Troubleshooting Instructions CCS Technical Documentation Viewfinder working but no picture taken when pressing select-key Viewfinder working but no picture taken when pressing select-key Select key functional? Check keyboard with Phoenix No X300 and X301 OK? Replace component No Yes Yes R906 = 104MHz clock when pressing select? UI- or main PWB FAILURE No Check for short circuit of R906 Short circuit? No CAMERA FAILURE Yes Yes Replace component Reflash phone Page 14
CCS Technical Documentation RH-12/RH-28 Baseband Troubleshooting Instructions FM-radio Failure The FM-radio troubleshooting guide is placed in the RF section.
RH-12/RH-28 Baseband Troubleshooting Instructions CCS Technical Documentation Infrared Communication Failure IrDA Failure Yes Measure VBAT at C350 = 3,74,2V ? No Defect PWB Yes Measure VFLASH1 at C351=2,78V No Replace D200 Yes Measure VIO at C353=1,80V No Replace D200 Yes Measure activity TXD on N350 pin3 ? No Replace D400 Yes Replace N350 Page 16 Nokia Corporation Issue 1 02/04
RH-12/RH-28 Baseband Troubleshooting Instructions CCS Technical Documentation SIM Failure The hardware of the SIM interface from the UEME (D200) to the SIM connector (X386) can be tested without a SIM card. When the power is switched on, the phone first checks for a 1,8V SIM card and then a 3V SIM card. The phone will try this four times, whereafter it will display "Insert SIM card". The error ”SIM card rejected” means that the ATR message received from the SIM card is corrupted, e.g.
RH-12/RH-28 Baseband Troubleshooting Instructions CCS Technical Documentation MMC Failure The hardware of the MMC interface from the UEME (D200) to the MMC connector (X910) can’t be tested without a MMC card. To be able to measure the following, solder wires on respective points. Figure 6: MMC Failure MMC Fault Yes Measure VBATBB at C911 = 3,74,2V ? No The following points can be measured at phone powerup, since the MMC will be initialized here.
CCS Technical Documentation RH-12/RH-28 Baseband Troubleshooting Instructions Bluetooth Failure The Bluetooth troubleshooting guide is placed in the RF section. When the flash D450 or UEME has been replaced the IMEI has to be reprogrammed. This will automatically include reprogramming of the BT address.
RH-12/RH-28 Baseband Troubleshooting Instructions CCS Technical Documentation Display Failure Display fails Yes Is display working NO Change display module Is display working? Yes NO Measure Vflash1 @ L302 towards X302 (display connector).
RH-12/RH-28 Baseband Troubleshooting Instructions CCS Technical Documentation USB Data Transmission Failure USB failing Attach phone via DKU-2 cable. Display shows: 'Data enhancement connected' ? Yes USB host detected.
RH-12/RH-28 Baseband Troubleshooting Instructions CCS Technical Documentation Functional Cover Failure FCI failing Fail Attach FC to phone. Open CCS Phoenix tool. Run 'alive' test Okay FCI is working. Retest phone No Change the 'padextender'. Retest interface No Change L304,C320. Is it working now? Fail Check 'Padextender' (Solder joints and spring contacts). Is it okay? Yes Attach FC to phone. Measure Vout Is it ~Vbat ? Yes Retest interface Yes Retest interface No Change Z310.
RH-12/RH-28 Baseband Troubleshooting Instructions CCS Technical Documentation FCI failing page 2 Attach FC to phone. Measure SCL & SDA Can any activity be seen? No Change L305,L306. Is it working now? Yes Retest interface Yes Retest interface No Change Z310. Is it working now? No Yes TikuEdge interface failing. Attach FC to phone. Measure Int High to low transition? No Change L307. Is it working now? Yes Retest interface Yes Retest interface No Yes Change Z310.
RH-12/RH-28 Baseband Troubleshooting Instructions CCS Technical Documentation Audio Failure Uplink or downlink failure Start uplink Is there an audio signal? No downlink Is problem uplink or downlink Go to "Uplink missing audio signal" Is there an audio signal? No Go to "Downlink audio signal missing" Yes Yes Is audio level sufficient? No Go to "Uplink weak audio signal Is audio level sufficient? No Go to "Downlink audio signal weak" Yes Yes Is audio signal undistorted? No Go to "Uplink
RH-12/RH-28 Baseband Troubleshooting Instructions CCS Technical Documentation Uplink missing audio signal Start No Is mute deactivated? No Deactive mute in menu Is problem present both with hand portable and accessory? Yes Is problem solved when using accessory? No Accessory is defective Yes Measure mic. bias. Is it close to 2.
RH-12/RH-28 Baseband Troubleshooting Instructions CCS Technical Documentation Uplink weak audio signal Start No Is microphone opening clean? Clean opening Yes Are any of the bias components defective (check R153, C151 and R151) No Measure bias. Is it close to 2.1V? Yes No Replace UEME Yes Replace defective parts. Is bias close to 2.1 V No Yes Are microphone contacts and PWB pads ok? No Clean contacts and pads.
RH-12/RH-28 Baseband Troubleshooting Instructions CCS Technical Documentation Uplink distorted audio signal Start No Is there no distortion when using accessory? Defect accessory Yes Measure bias. Is it close to 2.1V? Are any of the bias components defective (check R153, C151 and R151) No No Replace UEME Yes Replace defective parts. Is bias close to 2.1 V No Yes Are microphone contacts and PWB pads ok No Clean contacts and pads.
RH-12/RH-28 Baseband Troubleshooting Instructions CCS Technical Documentation Uplink TDMA noise Start Is there TDMA noise both in hand portable and when using accessory? No Is there only noise in hand portable mode? No Defective accessory Yes Yes Replace microphone.
RH-12/RH-28 Baseband Troubleshooting Instructions CCS Technical Documentation Downlink missing audio signal Start Is problem present both in hand portable mode and when using FM radio/music player/ MIDI? No Is problem associated with FM radio or music player/ MIDI? Defective music file FM radio Yes Is external antenna working? Is problem present both in earpiece, IHF and with accessory? Music player/MIDI No Accessory is not detected or is defective No Yes FM module is defective Yes Is problem
RH-12/RH-28 Baseband Troubleshooting Instructions CCS Technical Documentation Downlink weak audio signal Start Is IHF opening clogged? Is problem present both in earpiece and IHF? Yes Yes Clean IHF opening No No Is problem related to earpiece or IHF? IHF is defective. Check IHF speaker and connections. Check UEME. IHF Earpiec e Is IHF opening clogged? Yes Clean earpiece opening No Earpiece is defective. Check earpiece speaker and connections. Check UEME.
RH-12/RH-28 Baseband Troubleshooting Instructions CCS Technical Documentation Downlink distorted audio signal Start Is problem present both in earpiece and IHF? Yes No Is problem related to earpiece or IHF? IHF Earpiec e IHF is defective. Check IHF speaker and connections. Check UEME. Earpiece is defective. Check earpiece speaker and connections. Check UEME. Software error. Bad music files. Defective FM module.
RH-12/RH-28 Baseband Troubleshooting Instructions CCS Technical Documentation Downlink noise in audio signal Start Is noise electrical or mechanical? Loose speaker or other component inside telephone Mechanical Defective speaker. Electrical Is noise associated with earpiece/IHF (hand portable mode)? No Yes Does error occur both in earpiece and IHF? Yes No Is noise associated with FM tuner or with Music Player? Software error. Defective or badly tuned antenna.
RH-12/RH-28 Baseband Troubleshooting Instructions CCS Technical Documentation Downlink TDMA noise Start Is there TDMA noise both in hand portable and when using accessory? No Yes Issue 1 02/04 No Defective accessory Yes Yes Replace battery. Is there still noise? Is there only noise in hand portable mode? No Defective battery. Check for loose, missing or damaged shielding cans. Mistuned antenna. Missing/bad components. Check that problem is not related to uplink TDMA noise.
RH-12/RH-28 Baseband Troubleshooting Instructions CCS Technical Documentation Various noise problems Start Sound level too loud? Yes Software error No Click noise Yes Software error No Picture/sound synchronisation Page 34 Yes Nokia Corporation Bad TIKU Issue 1 02/04
RH-12/RH-28 Baseband Troubleshooting Instructions CCS Technical Documentation BT audio errors Start Accessory working? No Replace or repair accessory Yes Software working? No Flash with new software Yes Defective BT module or antenna.
RH-12/RH-28 Baseband Troubleshooting Instructions CCS Technical Documentation Vibra errors 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 UEME. Software error Contact problem. Defective vibra. Defective UEME. Yes Vibra is constantly switched on? Yes Software error. Defective UEME. Short circuit.
RH-12/RH-28 Baseband Troubleshooting Instructions CCS Technical Documentation BackLight Failure Start Try to change display. Are the LED's working now? Are the display LED's working? No Retest failed display No Change X302 Measure VLED+ ~ 13.5V when the LED driver is enabled. Is this OK? No Check N300, L303, C304, C304, R308. If not OK, Change defect part. Change UI PWB. Are the LED's working now? No Retest the failed UI PWB No Change X301 No Check R304, R303 & all LED's on UI PWB.
RH-12/RH-28 Baseband Troubleshooting Instructions CCS Technical Documentation Key Failure Power Key Failure Keypad fault Power key Ok ? No Measure voltage from S323. Is it high? No Check R302,C302,S323 and line. If Okay UEME failure Yes Measure voltage from S323 when pressed. Is it high? Yes Check S323.
RH-12/RH-28 Baseband Troubleshooting Instructions CCS Technical Documentation Volume Key Failure Volume Up key working? Measure Row4 line from S320 Is it ~1,8 V? No Check S320 and Row4 line. If Ok, change Z300. If it still fails, change TikuEdge Yes Measure Col1 from S320 when pressed. Is there a 50 u pulse? No Yes Volume Down key working? Measure Row4 line from S321 Is it ~1,8 V? Check S320 and Col1 line. If Ok, change Z300.
RH-12/RH-28 Baseband Troubleshooting Instructions CCS Technical Documentation UI module keys working UI-module keys working No Try to change UI PWB. Are the keys working now ? Yes Retest UI module No Change X300 and/ or X301 No Check X300 & X301 (Soldering and spring contacts). Is it okay? Yes Measure Row0-Row4, UP, DOWN and SELECT lines from X301. Are voltage levels ~1,8 V? No Yes Yes Measure SleepX signal (J403), when key is pressed.
