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NHL-4u/NHL4/NHL-4j Repairhints SCCE Training Group 6610/7210/7250 Version 3.0 2003 Nokia Mobile Phones Date 21/05/2003 GENERAL -How to use this document Put the colored schematics behind this manual. Now you are able to follow these specifications with graphical layouts and it is easier for you to find the components and measuring points.
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Repairhints SCCE Training Group 6610/7210/7250 Version 3.0 2003 Nokia Mobile Phones Date 21/05/2003 -PCB handling & cleaning To avoid damages of PCB and/ or components through electrostatic discharging, handle the module in ESD-suitable cases only. When handling PCBs outside an ESD-bag always wear ESD-bracelets, which must be connected to earth bonding point.
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NHL-4u/NHL4/NHL-4j Repairhints SCCE Training Group 6610/7210/7250 Version 3.0 2003 Nokia Mobile Phones Date 21/05/2003 ESD PROTECTION REQUIREMENTS Electrostatic discharge can easily damage the sensitive components of electronic products. Therefore, every Service Partner has to take of at least some precautions, such as ESD restricted area, floor, table, covering, chair(s), shoes, or wristband.
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Nokia Mobile Phones. All rights are reserved. Copying, including reproducing, modifying, storing, adapting or translating any or all of this material requires the prior written consent of Nokia Mobile Phones. This material also contains confidential information, which may not be disclosed to others without the prior written consent of Nokia Mobile Phones.
CONFIDENTIAL 6 (22) Customer Care Europe, Middle East & Africa NHL-4u/NHL4/NHL-4j Repairhints SCCE Training Group 6610/7210/7250 Version 3.0 2003 Nokia Mobile Phones Date 21/05/2003 Contents General PREFACE Introduction List of figures Repair information Phone hangs up when sending SMS (O-Code: O110)
CONFIDENTIAL 7 (22) Customer Care Europe, Middle East & Africa NHL-4u/NHL4/NHL-4j Repairhints SCCE Training Group 6610/7210/7250 Version 3.0 2003 Nokia Mobile Phones Date 21/05/2003 List of figures RFClk 26MHz Figure 1 32kHz SleepClk Figure 2 VSIM Figure 3 SIMDATA...
NHL-4u/NHL4/NHL-4j Repairhints SCCE Training Group 6610/7210/7250 Version 3.0 2003 Nokia Mobile Phones Date 21/05/2003 Phone hangs up when sending SMS (O-Code: O110) Pre-check: Take the phone, insert a SIM card and try to send an SMS through network. If the phone hangs up, follow repair instructions: ”Phone hangs up when sending SMS (O-Code: O110)”...
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NHL-4u/NHL4/NHL-4j Repairhints SCCE Training Group 6610/7210/7250 Version 3.0 2003 Nokia Mobile Phones Date 21/05/2003 Phone locks up, reboots or no response (O-Code: O901) Pre-check: Take the phone and insert a SIM card. If the phone locks up, follow repair instructions: ”Phone locks up, reboots or no resonse (O-Code: O901)”...
Customer Care Europe, Middle East & Africa NHL-4u/NHL4/NHL-4j Repairhints SCCE Training Group 6610/7210/7250 Version 3.0 2003 Nokia Mobile Phones Date 21/05/2003 Phone is totally dead Pre-check: Try to turn on the phone. If nothing happens, follow repair instructions: “Phone is totally dead”...
NHL-4u/NHL4/NHL-4j Repairhints SCCE Training Group 6610/7210/7250 Version 3.0 2003 Nokia Mobile Phones Date 21/05/2003 Phone powers down Pre-check: Put a battery in the housing and try to turn on phone. If the phone is on and shuts down automatically, follow repair instructions: “Phone powers down”...
NHL-4u/NHL4/NHL-4j Repairhints SCCE Training Group 6610/7210/7250 Version 3.0 2003 Nokia Mobile Phones Date 21/05/2003 Insert SIM card Pre-check: Put a SIM card into the phone and turn it on. If “Insert SIM card” still appears on display after a few seconds, follow repair instructions: “Insert SIM card”...
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NHL-4u/NHL4/NHL-4j Repairhints SCCE Training Group 6610/7210/7250 Version 3.0 2003 Nokia Mobile Phones Date 21/05/2003 If VSIM is ok, check following signals with inserted SIM card: SIMCLK = 3.25MHz at X386 Pin1 SIMRST = 3VDC at X386 Pin2 SIMDATA at X386 Pin6...
Customer Care Europe, Middle East & Africa NHL-4u/NHL4/NHL-4j Repairhints SCCE Training Group 6610/7210/7250 Version 3.0 2003 Nokia Mobile Phones Date 21/05/2003 Flowchart “Insert SIM card” "Insert SIM card" Set phone to local mode and check with oscilloscope VSIM, SIMCLK, SIMDATA,...
Customer Care Europe, Middle East & Africa NHL-4u/NHL4/NHL-4j Repairhints SCCE Training Group 6610/7210/7250 Version 3.0 2003 Nokia Mobile Phones Date 21/05/2003 Black display Pre-check: Turn on the phone. If there is nothing to be seen on the display, follow repair instructions: “Black display”...
NHL-4u/NHL4/NHL-4j Repairhints SCCE Training Group 6610/7210/7250 Version 3.0 2003 Nokia Mobile Phones Date 21/05/2003 LEDs flickering Pre-check: Turn on the phone. If the phones turn on, the LEDs are flickering and than lights turn off. The LEDs do not turn on again, e.g.
NHL-4u/NHL4/NHL-4j Repairhints SCCE Training Group 6610/7210/7250 Version 3.0 2003 Nokia Mobile Phones Date 21/05/2003 Missing lines or segments and blizzard Pre-check: Switch the phone on. If the phone is switched on and lines or segments are missing or blizzard is appering continuously or only temporarily.
Repairhints SCCE Training Group 6610/7210/7250 Version 3.0 2003 Nokia Mobile Phones Date 21/05/2003 One way communication / low, poor or no speech Pre-Check: Try to test all audio functions of the phone, e.g. internal, external audio. Make a call between the faulty phone and the tester, e.g.
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NHL-4u/NHL4/NHL-4j Repairhints SCCE Training Group 6610/7210/7250 Version 3.0 2003 Nokia Mobile Phones Date 21/05/2003 No sound on one of the headset earpieces Pre-check: Turn on the phone, connect the headset and activate the FM radio. If no stereo sound is audible, follow repair instructions: ”No sound on one of the headset earpieces”...
Customer Care Europe, Middle East & Africa NHL-4u/NHL4/NHL-4j Repairhints SCCE Training Group 6610/7210/7250 Version 3.0 2003 Nokia Mobile Phones Date 21/05/2003 Flowchart audio faults Audio faults Connect the headset and make a phone call or turn on the FM-Radio and use volume side keys S300 and S301 to change the volume.
21 (22) Customer Care Europe, Middle East & Africa NHL-4u/NHL4/NHL-4j Repairhints SCCE Training Group 6610/7210/7250 Version 3.0 2003 Nokia Mobile Phones Date 21/05/2003 CCT reference failure codes for software applications O1xx - Communication O4xx - Games O101 Call divert...