41
VSX-1127-K
5
6
7
8
5
6
7
8
A
B
C
D
E
F
7. DISASSEMBLY
1. Discharging
(1) Unplug the power cord.
(2) Disconnect the 10P connector from CP403 of the AMP7 Assy between CN3 of the MAIN Assy.
(3) CB and –B terminal of the D7, using resistor leads with 47 - 100 ohms (2 W or higher), for discharging.
∗
Discharging time: 30 - 60 seconds, depending on the level of resistance.
(4) Check that the voltage between the +B and –B 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 (3).
[1] MAIN Assy Capacitor (C55, C58)
[Procedures]
(1) Unplug the power cord.
(2) Connect pin 1 (–30V) and GND terminal
A
of CP3001
on the FRONT Assy, using resistor leads
with 47-100 ohms (2 W or higher), for discharging.
∗
Discharging time: 5 - 10 seconds, depending on the
level of resistance.
(3) Check that the voltage between the –30V terminal 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).
[2] FL-30 V Capacitor
[Procedures]
47 - 100 ohms
(2 W or higher)
47 - 100 ohms
(2 W or higher)
C55
+B
GND
−30V
–B
D7
CP403
C58
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 (GGD1740)
• 3P extension jig cable (GGD1741)
• Board to board extension jig cable (GGD1736) + Conversion jig (GGD1802)
• Board to board extension jig cable (GGD1798) + Conversion jig (GGD1803)
• Board to board extension jig cable (GGD1799)
MAIN Assy
AMP7 Assy
FRONT Assy
CP3001
A
Summary of Contents for Elite VSX-60
Page 36: ...36 VSX 1127 K 1 2 3 4 A B C D E F 1 2 3 4 Block Diagram ...
Page 55: ...55 VSX 1127 K 5 6 7 8 5 6 7 8 A B C D E F ...
Page 105: ...105 VSX 1127 K 5 6 7 8 5 6 7 8 A B C D E F ...
Page 113: ...113 VSX 1127 K 5 6 7 8 5 6 7 8 A B C D E F C SIDE B C N 3 C N 2 C N 1 CP3 CP1 ...
Page 133: ...133 VSX 1127 K 5 6 7 8 5 6 7 8 A B C D E F U U SMPS ASSY SIDE B SIDE B CX101 CX102 CX100 ...