User Guide

Issue 1 04/2005 COMPANY CONFIDENTIAL 47
Copyright © 2005 Nokia. All Rights Reserved.
RM-94
Appendix 6A: Test Points Nokia Customer Care
■ Synthesizer test points
S y n t h e s i z e r T e s t P o i n t s ( 1 / 1 )
T e s t p o i n t
R F B u s C l k , R F B u s D a t a , R F B u s E n a 1
B a n d d e f a u l t ( G S M 9 0 0 o r G S M 8 5 0 ) A c t i v e U n i t R X O p e r a t i o n M o d e B u r s t R X / T X C h a n n e l d e f a u l t S i g n a l A m p l i t u d e
~ 2 V
G r a p h
R F B u s C l k
R F B u s D a t a R F B u s E n a 1
T e s t p o i n t
V C T C X O o u t ( R E F C L K )
B a n d d e f a u l t A c t i v e U n i t R X O p e r a t i o n M o d e C o n t i n u o u s R X / T X C h a n n e l d e f a u l t S i g n a l A m p l i t u d e
8 8 0 m V p p
D C O f f s e t 1 . 5 V F r e q u e n c y 2 6 M H z G r a p h
m e a s u r e d w i t h p a s s i v e p r o b e 1 0 x , 1 0 M o h m / 8 p F , A C c o u p l e d )
T e s t p o i n t V c o f V C O B a n d G S M 1 8 0 0 G S M 1 9 0 0 G S M 1 9 0 0 A c t i v e U n i t T X T X R X O p e r a t i o n M o d e C o n t i n u o u s R X / T X C h a n n e l 5 1 2 5 1 2 8 1 0 F r e q u e n c y 3 4 2 0 . 4 M H z 3 7 0 0 . 4 M H z 3 9 7 9 . 6 M H z D C L e v e l ~ 1 . 3 V ~ 2 . 5 V ~ 3 . 6 V N o t e
T a k e c a r e t o s e l e c t t h e h i g h e s t P C L 1 5 i f
a c t i v a t i n g T X C o n t i n u o u s m o d e , o t h e r w i s e
t h e p o w e r a m p
l i f i e r w i l l b e d e s t r o y e d .
T e s t p o i n t V C O o u t
B a n d G S M 1 8 0 0 G S M 1 9 0 0 G S M 1 9 0 0 A c t i v e U n i t T X T X R X O p e r a t i o n M o d e C o n t i n u o u s R X / T X C h a n n e l 5 1 2 5 1 2 8 1 0 F r e q u e n c y 3 4 2 0 . 4 M H z 3 7 0 0 . 4 M H z 3 9 7 9 . 6 M H z L e v e l ( s p e c . r a n g e =
- 3 . 5  + 2 . 5 d B m )
~ 0 d B m ~ 0 d B m ~ 0 d B m
N o t e s
M e a s u r e d u s i n g t h e s p e c i a l p r o b e w i t h
c a p a c i t i v e c o u p l i n g . N o e x a c t p o w e r
m e a s u r e m e n t p o s s i b l e .
T a k e c a r e t o s e l e c t t h e h i g h e s t P C L 1 5 i f
a c t i v a t i n g T X C o n t i n u o u s m o d e , o t h e r w i s e
t h e p o w e r a m p l i f i
e r w i l l b e d e s t r o y e d .
T e s t p o i n t V R 3 V R 5 V R 7 B a n d d e f a u l t ( G S M 9 0 0 o r G S M 8 5 0 ) A c t i v e U n i t R x O p e r a t i o n M o d e B u r s t o r C o n t i n u o u s R X / T X C h a n n e l d e f a u l t D C L e v e l 2 . 7 8 V 2 . 7 8 V 2 . 7 8 V
T e s t p o i n t V R 1 V r e f R F 0 1 V r e f R F 0 2
B a n d d e f a u l t ( G S M 9 0 0 o r G S M 8 5 0 ) A c t i v e U n i t R x O p e r a t i o n M o d e B u r s t o r C o n t i n u o u s R X / T X C h a n n e l d e f a u l t D C L e v e l 4 . 7 6 1 . 3 5 V 1 . 3 5 V
T e s t p o i n t A F C ( V c o f V C T C X O ) B a n d d e f a u l t A c t i v e U n i t R X O p e r a t i o n M o d e C o n t i n u o u s R X / T X C h a n n e l a n y A F C ( v a l u e ) - 1 0 2 4 1 5 0 1 0 2 3 A F C v o l t a g e 0 . 1 V 1 . 4 V 2 . 5 V
V R 3
V C T C X O o u t
2 6 M H z
A F C ( G 7 5 0 1 ) V c o f V C T C X O
V R 1 V R 5
V r e f R F 0 1
V C O o u t 3 . . 4 . 5 G H z
V c o f V C O
( C 7 5 0 3 )
V R 7 ( C 7 5 0 0 )
R F C L K _ I
( C 2 9 0 2 / R 2 9 0 2 )
R F B u s D a t a ( J 1 0 0 3 )
R F B u s C l k ( J 1 0 0 1 )
R F B u s E n a 1 ( J 1 0 0 2 )
L a y o u t : 1 c n a _ 4 1 ( B u i l d 4 . 0 )