Philips 70DCC600 - Page 25

MEASUREMENTS ON DIGITAL BOARD PCBS
Note: All measurements carried out with digital oscilloscope and probe 10:1
RDCLCK
~
RDSYNC
~
RDMUX
~
.... ~
.. ,,,
I'
I illill
f'
nI :,
r: I
II
I~
I"
I III Ill' "
""
Ill' '" • iii
" I'. '"
n
j
r-"
t-
JI.-+.
-7f
~
~
tj.
~1.rH t
~
~
I.v'
"1
" IH
t~
Ch.l: 0,5 VIDIV
500 ns
Ch.2: 0,5 VlDIV
500 ns
Ch.3:
50 mV/DIV
500 ns
WCLCK
~
WDATA
~
I I
I
i-
1,1
1l1';~L
'IV rll ~1Jr ,:1~11I
II,
W1,IW,
,
, I'
of/ "',
2-'i
I
ill
IllJl Jl J~l
II
1 rite evel .10
1 u
I
Ch.l: 0,5 VIDIV
2~
Ch.2: 0,5 VlDIV
2 ~s
START MARKER (IDEAL)
START MARKER
(DETECTION POSSIBLE BUT NOT RELIABLE)
AUX ENV
~
LABEL
~
I
,
~~ I
pI • (IT
In]f(
I,M
IWI~U
I
Ch.l: 0,5 VlDIV
50ms
Ch.2: 0,5 VlDIV
50 ms
AUX ENV
~
LABEL
~
I
I
~,;~}l
l~m;1
!f
, III
~W: 1't\1IJ1I1nY
a'"
I"IfI: "1"'(1
I I
I
Ch.l: 0,5 VIDIV
50ms
Ch.2: 0,5 VlDIV
50 ms
START MARKER
(CORRECT DETECTION IMPOSSIBLE)
AUX ENV
~
LABEL
~
I
JIll 1[1
11m,'
h~l~ III
1In~',NIL l~
III
!
I
I I~I
1/\ :\
Ch.l: 0,5 VlDIV
50 ms
Ch.2: 0,5 VlDIV
50ms
TCHO
~
TCHl
~
TAUX
~
I
11111
IIII' I
I i
III
\I I 11\ I
,I
T
ni'
l~ nn Inl 1f I r
n 1
-
~ ~
I r
-
n
r
'-
~
..J
-
,.....,
~
'-r-
Ch.1: 50 mVlDlV
50 ~s
Ch.2: 50 mViDIV
50 ~s
Ch,3: 50 mVlDlV
50 ~s
AZCHK
~
I
I
/
I
dEliay time bjatwe
nTCHO
nd
CH
(.'azilT lJth error igilal)
-
-
Ch.l: 0,5 VIDIV
20~
41
Ch.l: 0,5 V/DIV
500 ns
Ch.2: 0,5 mVlDlV
500 ns
Ch.3: 0,5 V/DIV
500
ns
Ch.4: 0,5 V/DIV
500
ns
CS 45 933