55
VSX-1022-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/AMP5 Assy between C
N
3 of the MAI
N
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 G
N
D terminal of the tester to the chassis.
∗
If the voltage is still 1
V
or higher, repeat Step (3).
[1] MAIN Assy Capacitor (C55, C5
8
)
[Procedures]
(1) Unplug the power cord.
(2) Connect pin 1 (–30
V
) and pin 2 (G
N
D) of C
N
704B on
the CPU 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 –30
V
terminal is less
than
1
V
, using a tester.
∗
Be sure to connect the G
N
D terminal of the tester to
the
chassis.
∗
If the voltage is still 1
V
or higher, repeat Step (2).
[2] FL-30 V Capacitor (MAIN Assy C101)
[Procedures]
47 - 100 ohms
(2
W
or higher)
47 - 100 ohms
(2
W
or higher)
C55
+B
G
N
D
−30
V
–B
D7
CP403
C5
8
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:
• 9P extension jig cable (GGD1739)
• 13P extension jig cable (GGD1740)
• 3P extension jig cable (GGD1741)
• Board to board extension jig cable (GGD1756)
• Board to board extension jig cable (GGD1770)
• Board to board extension jig cable (GGD1
8
00)
• 25P extension jig FFC (GGD1
8
01)
MAI
N
Assy
AMP7/AMP5 Assy
CPU Assy
C
N
704B
Содержание VSX-1022-K
Страница 11: ...11 VSX 1022 K 5 6 7 8 5 6 7 8 A B C D E F ...
Страница 15: ...15 VSX 1022 K 5 6 7 8 5 6 7 8 A B C D E F S HP ASSY C MAIN ASSY B AMP7 ASSY P F USB ASSY ...
Страница 17: ...17 VSX 1022 K 5 6 7 8 5 6 7 8 A B C D E F S HP ASSY C MAIN ASSY Y B AMP5 ASSY P F USB ASSY ...
Страница 22: ...22 VSX 1022 K 1 2 3 4 A B C D E F 1 2 3 4 4 6 D MAIN BLOCK DIAGRAM 1 2 D D MAIN ASSY ADV7181CBSTZ ...
Страница 23: ...23 VSX 1022 K 5 6 7 8 5 6 7 8 A B C D E F ...
Страница 24: ...24 VSX 1022 K 1 2 3 4 A B C D E F 1 2 3 4 4 7 D MAIN BLOCK DIAGRAM 2 2 D D MAIN ASSY IC9204 DM860A ...
Страница 25: ...25 VSX 1022 K 5 6 7 8 5 6 7 8 A B C D E F IC9204 DM860A UPD78F1167AGF ...
Страница 26: ...26 VSX 1022 K 1 2 3 4 A B C D E F 1 2 3 4 4 8 CPU BLOCK DIAGRAM E CPU ASSY ...
Страница 27: ...27 VSX 1022 K 5 6 7 8 5 6 7 8 A B C D E F ...
Страница 28: ...28 VSX 1022 K 1 2 3 4 A B C D E F 1 2 3 4 4 9 VIDEO BLOCK DIAGRAM F VIDEO ASSY ...
Страница 29: ...29 VSX 1022 K 5 6 7 8 5 6 7 8 A B C D E F ...
Страница 30: ...30 VSX 1022 K 1 2 3 4 A B C D E F 1 2 3 4 4 10 POWER SUPPLY BLOCK DIAGRAM C MAIN ASSY W STBY ASSY ...
Страница 31: ...31 VSX 1022 K 5 6 7 8 5 6 7 8 A B C D E F ...
Страница 71: ...71 VSX 1022 K 5 6 7 8 5 6 7 8 A B C D E F ...
Страница 87: ...87 VSX 1022 K 5 6 7 8 5 6 7 8 A B C D E F B 2 2 B 1 2 SL Audio Signal Route Surround L ch SL SL SL ...
Страница 129: ...129 VSX 1022 K 5 6 7 8 5 6 7 8 A B C D E F ...
Страница 139: ...139 VSX 1022 K 5 6 7 8 5 6 7 8 A B C D E F C SIDE B CN3 CN2 CN1 CP3 CP1 ...