36
VSX-519V-K
1
2
3
4
A
B
C
D
E
F
1
2
3
4
7. DISASSEMBLY
7.1 DISASSEMBLY
1. Discharging
(1) Unplug the power cord.
(2) Disconnect the 8P CONNECTOR wire that connects the CN202 of the P.C.B SUB Assy (AMP) and CP107 of the
P.C.B SUB Assy (MAIN) from the CP107.
(3) Connect CP107 B+ (Pins 5 and 6) and B- (Pins 7 and 8, respectively) 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.
(4) 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 (3).
[1] P.C.B SUB ASSY (MAIN) Capacitor (C179, C180)
[Procedures]
(1) Unplug the power cord.
(2) Connect CP704 -30 V (Pins 1 and 2) of the P.C.B SUB Assy (FRONT) and GND (Pins 3 and 4, respectively), 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 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).
[2] FL-30 V Capacitor
[Procedures]
47-100 ohms
(2 W or higher)
47-100 ohms
(2 W or higher)
CP107
P.C.B SUB Assy (FRONT)
B+
B-
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:
• 10P board to board extension jig cable (GGD1628)
• 8P board to board extension jig cable (GGD1629)
• Board to board extension jig cable (GGD1630)
Summary of Contents for VSX-519V-K
Page 18: ...18 VSX 519V K 1 2 3 4 A B C D E F 1 2 3 4 4 3 VIDEO BLOCK DIAGRAM P C B SUB ASSY VIDEO 519 L ...
Page 19: ...19 VSX 519V K 5 6 7 8 5 6 7 8 A B C D E F 4 4 U COM BLOCK DIAGRAM P C B SUB ASSY FRONT C ...
Page 45: ...45 VSX 519V K 5 6 7 8 5 6 7 8 A B C D E F ...
Page 57: ...57 VSX 519V K 5 6 7 8 5 6 7 8 A B C D E F J CN401 M CP107 A FL FL FL SL SL SL C C C ...
Page 67: ...67 VSX 519V K 5 6 7 8 5 6 7 8 A B C D E F P 2 2 116 ...
Page 71: ...71 VSX 519V K 5 6 7 8 5 6 7 8 A B C D E F B A SIDE B B P C B SUB ASSY P T ...
Page 77: ...77 VSX 519V K 5 6 7 8 5 6 7 8 A B C D E F J 01 SIDE A SIDE B ...
Page 81: ...81 VSX 519V K 5 6 7 8 5 6 7 8 A B C D E F L SIDE A ...
Page 83: ...83 VSX 519V K 5 6 7 8 5 6 7 8 A B C D E F L SIDE B ...
Page 89: ...89 VSX 519V K 5 6 7 8 5 6 7 8 A B C D E F P N SIDE B ...