Pioneer VSX-519V-K Service Manual page 29

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Step 7: SDA /SCL
IC1002 (Pin 47)
Does
a signal output in
constant period
(0 to 5 V)
?
Yes
IC1002 (Pin 46)
Does
a clock output in
constant period
(0 to 5 V)
?
Yes
IC1002 (Pin 49)
Is
there a same
signal as IC1001-pin 24
(0 to 3.3V)
?
Yes
IC1002 (Pin 48)
TE
Is
L 13942296513
there a same
signal as IC1001-pin 23
(0 to 3.3V)
?
Yes
* When connected the equipment to IN1(BD/DVD);
IC1001 (Pin 44)
Is
there a same
signal as IC1002-pin 49
when selecting
IN1?
Yes
IC1001 (Pin 43)
Is
there a same
signal as IC1002-pin 48
when selecting
IN1?
Yes
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SDA (HDMI OUT)
Check the JACK1004 and IC1002.
No
If JACK1004 or IC1002 is failure,
replace JACK1004 or IC1002.
SCL (HDMI OUT)
Check the JACK1004 and IC1002.
No
If JACK1004 or IC1002 is failure,
replace JACK1004 or IC1002.
SDA_SINK
Check the IC1002 and IC1001.
No
If IC1002 or IC1001 is failure,
replace IC1002 or IC1001.
SCL_SINK
Check the IC1002 and IC1001.
No
If IC1002 or IC1001 is failure,
replace IC1002 or IC1001.
SDA (HDMI IN1(BD/DVD))
Check the IC1001 and JACK1003.
No
If IC1001 or JACK1003 is failure,
replace IC1001 or JACK1003.
(0 to 5 V)
SCL (HDMI IN1(BD/DVD))
Check the IC1001 and JACK1003.
No
If IC1001 or JACK1003 is failure,
replace IC1001 or JACK1003.
(0 to 5 V)
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IC1001 (Pin 40)
there a same
signal as IC1002-pin 49
when selecting
IN2?
IC1001 (Pin 39)
there a same
signal as IC1002-pin 48
when selecting
IN2?
IC1001 (Pin 36)
there a same
signal as IC1002-pin 49
when selecting
IN3?
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IC1001 (Pin 35)
there a same
signal as IC1002-pin 48
when selecting
IN3?
To Step 8
Step 8: TMDS
IC1002 (Pins 30,31,33,34,36,37,39,40) TMDS OUTPUT
Are there
signals(approx. 0.5
Vp-p) in all
lines?
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VSX-519V-K
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* When connected the equipment to IN2 (TV/SAT):
SDA (HDMI IN2 (TV/SAT))
Is
Check the IC1001 and JACK1002.
No
If IC1001 or JACK1002 is failure,
replace IC1001 or JACK1002.
(0 to 5 V)
Yes
SCL (HDMI IN2 (TV/SAT))
Is
Check the IC1001 and JACK1002.
No
If IC1001 or JACK1002 is failure,
replace IC1001 or JACK1002.
(0 to 5 V)
Yes
* When connected the equipment to IN3 (DVR/VCR):
SDA (HDMI IN3 (DVR/VCR))
Is
Check the IC1001 and JACK1001.
No
If IC1001 or JACK1001 is failure,
replace IC1001 or JACK1001.
(0 to 5 V)
Yes
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SCL (HDMI IN3 (DVR/VCR))
Is
Check the IC1001 and JACK1001.
No
If IC1001 or JACK1001 is failure,
replace IC1001 or JACK1001.
(0 to 5 V)
Yes
Check the IC1001 or IC1002.
No
If IC1001 or IC1002 is failure,
replace IC1001 or IC1002.
m
Yes
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