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Customer Care Europe, Middle East & Africa
SCCE Training Group
Not charging
In case of any fault in the charging circuit: First thing you should do is running the energy management calibration to define
the fault!
You also should check whether the fault occurs only intermittendly or if it is permanently impossible to charge the battery.
In case that the fault appears only from time to time, especially check contact springs of DC/HS-connector X200 and
battery-connector X203 if bent, soiled or corroded. Also ensure that contact-pads for connectors on PCB are not dirty.
If necessary, clean them with an appropriate amount of IPA. Do not use any scratching or rubbing tools!
To ensure function of the phone you have to run the energy management calibration whenever a part was changed in the
charging circuit!
Nothing happens if charger is connected:
Check if voltage at voltage divider R209/210 is 0.8 V DC if ACP-7 charger is connected to the phone.
If no voltage is measurable, check CHRGR+line for disconnection:
Check mechanical appearance of DC/HS-connector X200, especially check contact springs if bent, soiled or corroded.
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Check solderings and resistance of fuse F200 and coil L202, 0 ? .
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Check resistance of R209 (47 k? ) and R210 (4.7 k? ) and check if CHRGR+line has no short circuit to ground.
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Resistance normally is 50 k? . Check V201 and C215/216/217 if faulty.
If nothing happens when a charger is connected to the phone but voltage at R209/210 is ok, a defect CCONT N201
is responsible for the fault in most cases, but it also can be necessary to change CHAPS N200.
Display message "Not Charging"
If this message appears on the display after connecting charger to the phone, first run the energy management calibration to get
more information about the fault. If calibration is possible without failure message, check if charging works now.
If calibration does not work, following failure messages are possible:
Battery temperature failed:
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Check voltage at C235, normally 0.5 VDC in service-jig. If voltage is not ok, check R220/222 for defect or broken
solderings, also check that C235/236 have no shorts to ground.
If the mentioned parts are ok but fault persists, it is necessary to change the CCONT N201.
Battery size failed:
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Check voltage at C235, normally 0.38 V DC in service-jig. If voltage is not ok, check R220/221 for defect or broken
solderings, also check that C235/236 have no shorts to ground. If the mentioned parts are ok but fault persists,
change CCONT N201.
Battery voltage failed:
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This A/D-value is generated inside of CCONT N201, so that you have to change CCONT if A/D-value is out of limit.
Charge current failed:
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Probably CHRGR+line interrupted. Check resistance of R204 (0.22 ? ) or change CHAPS N200.
If this does not solve the problem, change CCONT N201 and try calibration once more.
Charge voltage failed
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In case of this failure message, first of all check voltage at voltage divider R209/210. Voltage here normally is 0.8 V DC with
connected charger ACP-7. If this voltage is ok, it is necessary to change the CCONT N201.
If voltage at voltage divider is not ok, check contact springs of DC/HS-connector X200, also check F200, L202 and C215-217.
Display message "Reconnect Charger"
In most cases CHAPS N200 is damaged after HW update R301 with Hot Air Fan.
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© NMP 2002
CONFIDENTIAL
NHM—2/5/6
3410
Date 20.11.2002
Checked by:
Customer Care E&A
26 (44)
Repairhints
Version 4.0 Approved
Approved by:
SCCE Training Group
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