Pioneer VSX-2016AV-S Service Manual page 223

5
QQ
3 7 63 1515 0
E
Step 3-3: Reset
IC501 (Pin 3)
Is the voltage
"H" (3.3 V)?
Yes
X'tal
IC401 (Pin 37)
Is
there the CLK
(28.63636MHz)
?
Yes
Step 3-4: I2C
R353
Does
a signal output in
constant period
(0 to 3.3 V)
?
TE
L 13942296513
Yes
R354
Does
a clock output in
constant period
(0 to 3.3 V)
?
Yes
Step 3-5: VIDEO CLK, DATA
IC452 (Pin 2)
Is there a clock?
Yes
IC701 (Pins 2 to 9)
IC453 (Pins 2 to 9)
Is there a data?
www
Yes
.
5
http://www.xiaoyu163.com
6
XVCRST
b
Check the parts and patterns in
No
the path (IC501 to IC401, IC701).
If IC501 is failure, replace IC501.
XTAL1
b
No
Check the X401 or IC401.
If X401 or IC401 is failure,
replace X401 or IC401.
VCSDA
d-1
Check the parts and patterns in
No
the path (IC501 to IC401, IC701).
If IC501 or IC401 or IC701 is
failure, replace IC501 or IC401 or
IC701.
VCSCL
d-2
Check the parts and patterns in
No
the path (IC501 to IC401, IC701).
If IC501 or IC401 or IC701 is
failure, replace IC501 or IC401 or
IC701.
LLC1
e
Check the parts and patterns in
No
the path (IC401 to IC452).
If IC401 or IC452 is failure,
replace IC401 or IC452.
P12-P19
f
Check the parts and patterns in
No
the path (IC401 to IC453, IC701).
If IC401 or IC453 or IC701 is
failure, replace IC401 or IC453 or
IC701.
x ao u163
y
i
6
http://www.xiaoyu163.com
7
2 9
8
IC454 (Pins 2 to 9)
Is there a data?
Yes
IC452 to IC454 (Pin 1)
Is the voltage
"L" (0 V)?
Yes
Step 3-6: Video Output (480i/576i only)
IC701 (Pin 35)
Is there a
composite
signal?
Yes
CN1002 (Pin 3)
Q Q
3 6 7 1 3 1 5
Is there a
composite
signal?
Yes
Diagnose the MAIN CONTROL
Assy or COMPOSITE Assy.
IC701 (Pin 33)
Is there a
Y signal?
Yes
CN1002 (Pin 9)
Is there a
Y signal?
Yes
Diagnose the MAIN CONTROL
Assy or S-VIDEO Assy.
co
.
VSX-2016AV-S
7
8
9 4 2 8
P2 to 9 * 720p/1080i input only
g
Check the parts and patterns in
No
the path (IC401 to IC452).
If IC401 or IC454 is failure,
replace IC401 or IC454.
XVCOE
h
Check the parts and patterns in
No
the path (IC501 to IC452, IC453,
IC454). If IC501 or IC452 or IC453
or IC454 is failure, replace it.
DACA
i-1
Check the parts and patterns in
No
the path (IC701 to R731, Q731).
If IC701 or R731 or R732 or Q731
is failure, replace it.
CVBS OUT
0 5 8 2 9 9 4 2 8
a
Check the parts and patterns in
No
the path (Q731 to CN1002).
If Q731 or R733 is failure,
replace Q731 or R733.
DACB
i-2
Check the parts and patterns in
No
the path (IC701 to R741, Q741).
If IC701 or R741 or R742 or Q741
is failure, replace it.
SY OUT
a
Check the parts and patterns in
No
the path (Q741 to CN1002).
If Q741 or R743 is failure,
replace Q741 or R743.
m
9 9
A
B
C
9 9
D
E
F
223
8