Figure 10 Expected Crystal clock input to BCM2727B on Oscilloscope
TV out troubleshooting
Introduction to SDTV troubleshooting
SDTV
The phone has SDTV capability. The phone can be connected to an analog TV through a TV Out cable.
The following references on the PWB help in the effective debugging and troubleshooting of SDTV Out.
Sr. No
Reference
Description
1
R1419
DAC termination resistor. Resistor value 15 OHMS.
2
D1400
BCM2727B IC
3
N2001
Analog switch
4
L2001
Ferrite bead on the CVBS signal
5
Gold pads E2002 through
E2007
AV connector
The following test points on the PWB help in the effective debugging and troubleshooting.
Sr No
Signal name
Measuring point
Description
1
CVBS
Gold pad E2003
SDTV signal
RM-609
BB Troubleshooting and Manual Tuning Guide
Page 3 – 22
COMPANY CONFIDENTIAL
Issue 1
Copyright © 2011 Nokia. All rights reserved.