NAD T531AH, Service Manual

Page: 9 / 69

2-3
Main Circuit Board
(C)
(C)
(C)
(C)
(C)
(C)
(C)
(C)
(C)
(C)
(C)
(C)
Power Code
Interface
Board
(D)
(D)
Scart
Key
Circuit Board
(E)
(E)
(E)
(E)
(5, 6, 7
TOOL
ONL
Y)
Fig. 2-4
Fig. 2-5
1. Disassembling of Main Circuit Board
and Interface Board
1. Remove the top case.(See Fig. 2-1)
2. Remove 12 screw (C).
3. Remove the deck from Main Circuit Board.
4. Remove Main Circuit Board from Interface Board.
5. Remove 2 screw (D).
6. Remove Interface Board from the chassis.
CIRCUIT BOARD DISASSEMBLY
Note: Before removing the main circuit board, be sure to shortcircuit the laserdiode output land.
After replacing the main circuit board, open the land after inserting the flexible connector.
(Refer to Mechanism Disassembly)
2. Digitron and Key Circuit Board
1. Remove the front panel.(See Fig. 2-3)
2. Release 4 screws (E), and remove the digitron
circuit board.