Pioneer VSX-1018AH-K Service Manual page 69

5
2. Diagnosis
1
POWER AMP Assy
1
Remove the Rear Panel.
2
Remove the MAIN Assy (equipped with HDMI&DVC Assy
and DSP&USB Assy) and the AUDIO IN Assy from the
INTERFACE Assy.
3
Discharge C5721 and C5722.
(See the "discharge procedures.")
4
Remove the two screws that fix the Regulators attached to
the Chassis.
5
Remove the two Push Rivets and the two screws that fix the
POWER AMP Assy.
Regulator
Push
Rivet
POWER AMP Assy
POWER AMP Assy
6
Remove the two screws that fix the diode of the DIODE Assy.
7
Reassembling the MAIN Assy (equipped with HDMI&DVC
Assy and DSP&USB Assy) and the AUDIO IN Assy to the
INTERFACE Assy.
8
Reassembling the Rear Panel.
(Keep a space for earth and about six to seven screws fixing
places. Do not attach screws with the Chassis.)
5
6
9
10
11
12
4
13
6
5
VSX-LX51
6
7
Remove the Locking Card Spacer from the Chassis using
Cutting Pliers.
Locking Card Spacer
(for fixing the Assy)
9
Remove the four screws that fix the Heat Sink V5S.
Cut the Binder.
Remove the four screws that fix the Power Transformer. Place a
high insulating material under the Power Transformer to raise it.
Raise the block and diagnose the POWER AMP Assy B side.
Caution:
Fix the DIODE Assy to the Rear Panel with Tape so that it will
not come closer to other Assy.
Tape
DIODE Assy
Diagnosis
7
8
A
B
Cutting Pliers
C
DIODE Assy
D
E
F
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