EN 28
5.
LX7500R
Diagnostic Software
servtest LX7500R sh 6, 111004
Y
COMBI BOARD
I
2
C
TEST
Display shows
IIC XXXX FAIL
IIC TEST PASS
Display shows
Test register is written to
the first/next IC to be tested
and
read back again
STOP button
pressed?
Test ok?
All ICs tested?
N
Y
N
N
Y
Y
N
Press
PLAY button.
Back to main menu.
STOP button
pressed?
Y
Back to main menu.
stands for item number of the failed IC.
The selector / sound processor ICs 7207, 7214 and 7303 are passive ICs
which do not feed back via the IIC bus. The functionality of these ICs can
therefore not be tested with the IIC Test. For testing these ICs use the
AUDIO TEST.
7405 CODEC
7505 DSP
7603 SPDIF IC
XXXX
Press
S
or
T
button
and select
IIC TEST