Disassembly - Pioneer VSX-1020-K Service Manual

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7. DISASSEMBLY

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.
(2) For performing the diagnosis shown below, the following jigs for service is required:
• 13P extension jig cable (GGD1669)
• 8P extension jig cable (GGD1670)
• 7P extension jig cable (GGD1671)
• 2P short connector jig (GGD1672)
• Board to board extension jig cable (GGD1675)
1. Discharging
[1] MAIN Assy Capacitor (C5301, C5302)
[Procedures]
(1) Unplug the power cord.
(2) Connect D5301 B+ and B- terminals, using resistor leads with 47 - 100 ohms (2 W or higher), for discharging.
∗ Discharging time: 30 - 60 seconds, depending on the level of resistance.
(3) Check that the voltage between the B+ and GND terminals, as well as that between the B- and GND terminals, is less
than 1 V, using a tester.
∗ Be sure to connect the GND terminal of the tester to the chassis.
∗ If the voltage is still 1 V or higher, repeat Step (2).
MAIN Assy
5
6
D5301
C5301 C5302
VSX-1020-K
6
7
D5301
B+ B–
47 - 100 ohms
(2 W or higher)
7
8
A
B
C
D
E
F
43
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