Pioneer Elite VSX-81TXV, Руководство по обслуживанию

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