58
DVR 50 - Rev. 011105-2
Chassis Sub assy w/feet DVR-50
Replacing the DVR 50 Chassis Sub. Assy
Ref. No. Item No.
Part description
PCS.
Remarks
1
74108
Chassis Sub assy w/feet DVR-50
1
Comes whitout the loader brackets
•
Disconnect the power cord from the AC outlet and take all necessary ESD precaution.
•
Remove the Lid and Plastic front. (See instruction under these parts)
•
Disconnect the loader cables.
•
Dismount the loader by unscrewing the 4 bracket screws. See picture 44-0396/7
•
Remove the tuner. (See instructions under Tuner)
•
Remove the rear panel. (See instruction under Rear panel replacement)
•
Disconnect all cables between the Audio board and MPEG board.
•
Unscrew the 4 screws holding the PSU board, including the Audio board.
(See also instruction on how to replace the PSU board.)
•
Remove the PSU/Audio board assembly.
•
Remove the MPEG board. See picture 44-0398/4
•
Build up (assemble) the DVR 50 on the new Chassis Sub. Assy. by mounting
the boards in the reverse order of disassembling the DVR 50 units.
•
Test the DVR 50 unit.
Fig. 44-0396/7
Fig. 44-0398/4
Ref. No.
Item No.
Part description
PCS.
Remarks
1
74108
Chassis Sub assy w/ feet DVR 50
1
Comes whitout the loader brackets
2
74655
Brackets
2
Replacing the DVR 50 Chassis Sub. Assy
•
Disconnect the power cord from the AC outlet and take all necessary ESD precaution.
•
Remove the Lid and Plastic front. (See instruction under these parts)
•
Disconnect the loader cables.
•
Dismount the loader by unscrewing the 4 bracket screws. See picture 44-0396/7
•
Remove the tuner. (See instructions under Tuner)
•
Remove the rear panel. (See instruction under Rear panel replacement)
•
Disconnect all cables between the Audio board and MPEG board.
•
Unscrew the 4 screws holding the PSU board, including the Audio board.
(See also instruction on how to replace the PSU board.)
•
Remove the PSU/Audio board assembly.
•
Remove the MPEG board. See picture 44-0398/4
•
Build up (assemble) the DVR 50 on the new Chassis Sub. Assy. by mounting
the boards in the reverse order of disassembling the DVR 50 units.
•
Test the DVR 50 unit.
Fig. 44-0396/7
Fig. 44-0398/4
1
2