Nokia 6235 Service Manual
Nokia Customer Care
Baseband Description and Troubleshooting
6235/6235i/6236i (RM-60)
Issue 1 04/2005
©2005 Nokia Corporation Company Confidential
Page 45
Display Test
Check the following points for the display (see
):
1. Is the VBAT voltage at X2000?
2. Is the VBAT voltage at C2000?
3. Is the BSI line at R2206?
4. Is the BSI line at R2203?
5. Is Sleep Clock at 32kHz?
6. Is System Clock at 19.2kHz
Charging Test
Check the following points, charging (see
Figure 48
):
1. Does the battery bar scoll work?
2. Measure the BTEMP at V2000, check if it is at 25 degrees C. If not, replace the
UEM.
3. Remove fuse at F2000 and measure current, check if it is at 850mA. If not,
replace the UEM.
4. Measure the voltage at V2000, check if it is at 3VDC.