Test Interfaces; Production Test Pattern; Other Test Points - Nokia RH-41 Series Technical Documentation Manual

RH-41
System Module

Test Interfaces

Production Test Pattern

The interface for RH-41 production testing is a 5-pin pad layout in the BB area (see the
following figure). The production tester connects to these pads by using spring connec-
tors. The interface includes the MBUS, FBUSRX, FBUSTX, VPP, and GND signals. The pad
size is 1.7 mm. The same pads are used also for AS test equipment, such as the module
jig and the service cable.

Other Test Points

As BB asics and flash memory are CSP components, the visibility of BB signals is very
poor. This makes the measuring of most of the BB signals impossible. In order to debug
the BB, at least to some level, the most important signals can be accessed from the
0.6 mm test points. The figure below shows the test points located between the UEM and
the UPP. There is an opening in the baseband shield to provide access to these pads.
D B U S D A D B U S C L K
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S L E E P X P U R X
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2. FBUS_TX
6. VPP
Figure 9: Top View of Production Test Pattern
U E M ( D 2 0 0 )
S L E E P C L K C B U S D A
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J 4 0 5
U E M I N T D B U S E N 1 X
U P P ( D 4 0 0 )
Figure 10: Test points located between UEM and UPP
Nokia Corporation
CCS Technical Documentation
3. FBUS_RX
8. GND
7.MBUS
C B U S E N X C B U S C L K
J 4 0 8 J 4 0 6
J 4 1 5 J 4 1 2
F B U S R X
Confidential
F B U S T X
J 4 1 1
J 4 0 9 J 4 1 0
M B U S T X M B U S R X
Issue 2 09/2003