Ive Troubleshooting; Introduction To Ive Troubleshooting - Nokia RM-626 Service Manual

RM-626
BB Troubleshooting and Manual Tuning Guide

IVE troubleshooting

Introduction to IVE troubleshooting

The IVE engine is a next generation imaging and video engine based on BCM2727B. The BCM2727B acts as
imaging, video, display, and HDTV and SDTV hardware accelerator.
The following references on the PWB help in the effective debugging and troubleshooting of IVE.
Sr. No
1 B1400
2 D1400
The following test points on the PWB help in the effective debugging and troubleshooting.
Sr. No Signal name
1 VIVE_2V5_FILT
2 VIVE_2V8_FILT
3 VIVE_1V8_FILT
4 VBAT
5 RUN
6 XIN
Issue 1
Reference
Measuring point
L1403/C1453
L1404/C1455
L1402
L1403/C1466
J1425
C1448
COMPANY CONFIDENTIAL
Copyright © 2011 Nokia. All rights reserved.
Description
19.2MHz Crystal
IVE/BCM2727B IC
2.5V supply to BCM2727B
2.8V supply to BCM2727B
1.8V supply to BCM2727B
VBAT supply to BCM2727B
Enable signal to IVE. This needs to be
High for IVE to be Up.
19.2MHz clock to IVE
Description
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