The Studer D741 is a broadcast grade, 2U rack-mountable CD recorder and player.
Disassembly Notes
Tools Needed
- 3/16 Hex Driver
- 2.5mm Hex Key
- Phillips Screwdriver PH1
- Flat head Screwdriver
Disassembly
Top Cover
- Disconnect unit from mains
- Remove 3 screws at the top of the unit, 2 screws on each side, and 3 screws at the upper edge of the rear panel
- Lift the rear of the top cover and slide it to the rear until it comes off
Main logic board
- Disconnect all wire harnesses from board. Take care not to damage the thin gauge wires
- Remove 12 hex screws securing XLR connectors at rear
- Remove 4 standoffs securing D-SUB connectors to chassis
- Remove 1 Phillips screw securing SPDIF connectors to chassis
- Remove 5 hex screws securing the logic board
- Carefully lift the logic board from the chassis
Power Supply
- Disconnect all wire harnesses from board.
- Remove 1 hex screw holding ground bond wire
- Remove 2 flat-head and 2 hex screws securing metal plate to heatsink
- Remove 2 hex screws securing IEC connector to chassis
- Remove 3 hex screws securing board to chassis
- Carefully lift the board from the chassis
Original Parts
Main Logic Board
Note model numbers and board revisions here
Capacitor Specifications and Footprint Information
| RefDes
|
Qty
|
Capacitance
|
Voltage
|
Mount
|
Diameter/Size
|
Height
|
Lead Spacing
|
Temp
|
Type
|
Brand
|
Series
|
| 2254, 2255, 2430, 2431, 2432, 2433, 2522, 2523, 2524, 2525, 2526, 2527
|
12
|
100 µF
|
16V
|
Through Hole
|
10mm
|
13mm
|
|
85 °C
|
Aluminum Electrolytic
|
Nichicon
|
MUSE BP
|
| 2243, 2245, 2251, 2253, 2425, 2427, 2428, 2462, 2463, 2464, 2465, 2466, 2467, 2468, 2469, 2480, 2481, 2482, 2483, 2484, 2485, 2486, 2487, 2488, 2489, 2490, 2491
|
27
|
100 µF
|
25V
|
Through Hole
|
6mm
|
16mm
|
|
85 °C
|
Aluminum Electrolytic
|
Nichicon
|
VX
|
| 2017, 2018, 2025, 2028, 2031, 2034, 2036, 2038, 2101, 2102, 2104, 2111, 2126, 2150, 2200, 2210, 2214, 2218, 2233, 2236, 2302, 2308, 2312, 2315, 2395, 2396, 2397, 2398, 2472, 2473
|
30
|
47 µF
|
25V
|
Through Hole
|
5mm
|
12mm
|
|
85 °C
|
Aluminum Electrolytic
|
Nichicon
|
VX
|
| 2016, 2022, 2216, 2220, 2231, 2235, 2343
|
7
|
10 µF
|
50V
|
Through Hole
|
5mm
|
12mm
|
|
85 °C
|
Aluminum Electrolytic
|
Nichicon
|
VX
|
Power Supply
Capacitor Specifications and Footprint Information
| RefDes
|
Qty
|
Capacitance
|
Voltage
|
Mount
|
Diameter/Size
|
Height
|
Lead Spacing
|
Temp
|
Type
|
Brand
|
Series
|
| 2529, 2530
|
2
|
1000 µF
|
16V
|
Through Hole
|
10mm
|
20mm
|
|
85 °C
|
Aluminum Electrolytic
|
Panasonic
|
SU
|
| 2515, 2524
|
2
|
1000 µF
|
25V
|
Through Hole
|
12mm
|
25mm
|
|
105 °C
|
Aluminum Electrolytic
|
Nichicon
|
PF
|
| 2502, 2517, 2526, 2534
|
4
|
47 µF
|
35V
|
Through Hole
|
6mm
|
10mm
|
|
85 °C
|
Aluminum Electrolytic
|
Nichicon
|
VX
|
| 2535
|
1
|
3.3 nF
|
400V
|
Through Hole
|
|
|
|
|
Ceramic
|
|
|
| 2503, 2504, 2505
|
3
|
2200 µF
|
50V
|
Through Hole
|
18mm
|
35mm
|
|
85 °C
|
Aluminum Electrolytic
|
Nichicon
|
VX
|
| 2533
|
1
|
470 µF
|
50V
|
Through Hole
|
12mm
|
20mm
|
|
85 °C
|
Aluminum Electrolytic
|
Panasonic
|
SU
|
Replacement Parts
Main Logic Board
Capacitors
| RefDes
|
Qty
|
Compatible Part Number
|
Order Links
|
| 2254, 2255, 2430, 2431, 2432, 2433, 2522, 2523, 2524, 2525, 2526, 2527
|
12
|
RSRBD101M1EE11300T / RSR0B101M1GF12300T / UEP1H101MPD1AA
|
Digikey Mouser LCSC
|
| 2243, 2245, 2251, 2253, 2425, 2427, 2428, 2462, 2463, 2464, 2465, 2466, 2467, 2468, 2469, 2480, 2481, 2482, 2483, 2484, 2485, 2486, 2487, 2488, 2489, 2490, 2491
|
27
|
860020473008 / 25YXJ100MFFCT15X11
|
DigiKey Mouser LCSC
|
| 2017, 2018, 2025, 2028, 2031, 2034, 2036, 2038, 2101, 2102, 2104, 2111, 2126, 2150, 2200, 2210, 2214, 2218, 2233, 2236, 2302, 2308, 2312, 2315, 2395, 2396, 2397, 2398, 2472, 2473
|
30
|
860020472006 / 25PX47MEFC5X11
|
DigiKey Mouser LCSC
|
| 2016, 2022, 2216, 2220, 2231, 2235, 2343
|
7
|
860020672010 / 50YXG10MEFCTA5X11
|
DigiKey Mouser LCSC
|
Power Supply
If parts are not available or different selection is preferred, you can use the values in the Original Parts section to perform a parametric search.
Kits
Additional Images
Related Links
References
Top cover removed
Main logic board
Backside of main logic board
Power Supply
Rear I/O
