10
DVR 50 - Rev. 011105-2
DVR 50 Audio board
Replacing the DVR 50 Audio board
•
Disconnect the power cord from the AC outlet and take all necessary ESD
precaution.
•
Remove the Lid. (See instruction under Lid)
•
Disconnect all cables going to and from the Audio board.
•
Unscrew the 4 screws holding the Audio board. See picture 44-0400/3
•
Replace the board with a new Audio board. Note 1
•
Reconnect the cables. Note 2
•
Test the DVR 50 unit.
Important notes!
Note 1:
If washers is present. Be careful not to loose any of the isolation washers when
removing the board. There must be two plastic washers between the Audio
board and the PSU heat sink. See picture 44-0400/2. after Rev. 4 boards dos not
have washers.
Note 2:
Early models (approximately 30 units) got a sliced up Audio - MPEG cable. Special
care should be taken when refi tting it after service. The sliced cables are only
seen on board Rev. 2 boards. See picture 44-0401/4
Ref. No.
Item No.
Part description
PCS.
Remarks
1
74101
PCB assy Audioboard DVR-50
1
Rev.
≥
4
DVR 50 Electronic moduls
Fig.
44-0400/3
Fig.
44-0400/2
Fig.
44-0401/4
