VSX-1017AV-K
64
1
2
3
4
1
2
3
4
C
D
F
A
B
E
7. DISASSEMBLY
1.
Before
the
Power
Amp
Block
is
removed
Note
1:
Even
if
the
unit
shown
in
the
photos
and
illustrations
in
this
manual
may
differ
from
your
product,
the
procedures
described
here
are
common.
Note
2:
For
performing
the
diagnosis
shown
below,
the
following
jigs
for
service
is
required:
•
11P
board
to
board
extension
jig
cable
(GGD1
4
8
2
)
•
1
3
P
board
to
board
extension
jig
cable
(GGD1
4
8
3
)
•
15P
board
to
board
extension
jig
cable
(GGD1
4
8
4
)
•
2
1P
board
to
board
extension
jig
cable
(GGD1
4
85)
2
Discharge
C
32
57
and
C
32
58
on
the
T
RA
N
S
2-
1
Assy.
Note:
For
discharging,
use
a
load
of
100
Ω
,
3
W
or
more,
to
protect
the
I
C
protectors.
Do
NOT
discharge
instantly
by
short
-
circuiting.
3
Check
that
the
voltage
between
the
electrodes
of
each
C
32
57
and
C
32
58
is
1V
or
less.
4
Reassembling
the
Power
Amp
Block.
1
Unplug
the
AC
power
cord.
Before
the
Power
Amp
Block
is
removed,
discharge
C
32
57
and
C
32
58
on
the
T
RA
N
S
2-
1
Assy,
as
indicated
below.
I
f
you
don't,
the
I
C
protectors
(
I
C
33
51
and
I
C
33
5
2
)
on
the
VH
T
R
Assy
may
be
open,
and
DC
voltage
may
be
generated
at
the
power
amplifier
output,
which
will
result
in
"
AMP
ERR.
"
[
Procedure
]
I
C
32
5
2
C
32
5
4
C
32
60
C
32
59
R
32
51
3251
R
32
56
R
32
5
4
C3257
C3258
Q
32
5
3
Q
32
5
3
D
32
66
C
32
56
D
32
65
Q
32
5
2
Q
32
5
2
D
32
6
4
D
32
6
2
D
32
60
D
32
58
D
32
56
D
32
5
4
UD
Z
S1
2
(B)
UD
Z
S6R8(B)
UD
Z
S8R
2
(B)
7A
AEK70
2
1
4
70/100
S
T
BY
S
T
BY
MUF
(1/
4
W)
4
7
510
4
8
-
0600
4
.7k
LMF
(1W)
3
.
3
k
(1/
2
W)
LMF
22
0/100
22
0/100
UMD
2N
UMD
2N
1
3
(B)
100/6
3
1
3
(B)
UMD
2N
UMD
2N
2
1
3
6
5
4
-
65V
VHb
2
7
VLb
2
6
2
5
-
VH
-
C
-
B
+C
+VH
+B
-
56V
+56V
T
RA
N
S
2-
1
ASSY
T
o
VH
T
R
ASSY
S
T
RA
N
S
2-
1
ASSY
S
C
32
58
C
32
57
