Sound Skulptor MP 512 Assembly Manual Download

Page: 7 / 9

www.soundskulptor.com

Document revision 2.1 – Last modification : 11/09/20

DI board Assembly guide

4. Film capacitor

Add C22.

5. Transistors

Add Q1 and Q2.
The PCB has provision for two pinouts for Q2. With the current 2SK170, use the A position.

Warning

: Q1 (2N7000) is a device that is sensitive to static electricity before being soldered. It is safer

to handle it without your shoes on.

6. Electrolytic capacitors

Add C23, C24, C25.

Solder one lead first, adjust verticality then solder the second lead.

Warning

: The +lead must go into the +hole. Do not reverse (they may explode !)

7. Connector

Solder the connector CN3. Solder one pin first, check verticality, then solder the other pins.

Warning

: the connector pins must be exactly perpendicular to the PCB to allow proper insertion in the

preamp board.

8. Jack connector

Add CN1. The position of the socket is important for a good front-plate matching. It must sit flat
on the PCB. Press firmly the socket on the PCB and solder one of the pins. Check position then solder
the other pins.

Warning

: the hole must face outside the PCB ;-)

9. Visual check

Brush the solder side with a hard tooth brush to remove any remaining solder bits. Make a full visual
check. The DI board is ready for testing !

Summary of Contents for MP 512

Page 1: ...p and bottom pads is already done The parts must be soldered only from below unless differently stated Use only small diameter solder 0 5 or 0 7 mm 1mm maximum Use the minimum possible amount of solder Bad joints are almost always caused by too much solder Cut the component leads and pins totally flush with the PCB after soldering A too long tail could create an electric connection with the side p...

Page 2: ...DF for the closest value 4 Check the color code and quantity for confirmation 5 Use the search function on the Layout PDF page with the resistor value All the corresponding resistors are highlighted 6 Insert and solder You can use the same method later for the capacitors Add R1 to R15 R19 to R22 R24 to R40 The resistors marked NC in the parts list should not be installed Control the resistor value...

Page 3: ...tion marked by a notch Do not use a socket because it would be to high for the DI board 7 Relays Add RLY1 RLY2 Eight pins only are soldered Warning Make sure to respect the direction of the relays which is marked by a white line on the relay and on the PCB marking 8 Ceramic capacitors Add C1 C2 C3 C5 C8 C17 C18 C19 9 Film capacitors Add C10 10 Jumper header Solder the jumper header JMP1 Solder one...

Page 4: ...the bracket on the potentiometer bushing and attach it with the lock washer and nut Tighten Insert potentiometer and bracket into the PCB holes Solder the central potentiometer pin Now check that the potentiometer shaft is perfectly parallel to the board Then solder the other pins Warning A good potentiometer position is very important for a good match with the front panel 17 Input transformer Pin...

Page 5: ...the necessary length around 6 cm Strip on 5mm insert in the color corresponding pad hole and solder Cut flush 19 Large electrolytics Add C9 and C15 These capacitors are bipolar so they can be inserted in any direction 20 Visual check At this point brush the solder side with a hard tooth brush to remove any remaining solder bits Make a full visual check When everything looks correct proceed with th...

Page 6: ...P 512 is now ready for test Please follow instructions in the MP512 Test document DI board Assembly guide 1 Horizontal resistors Add R41 to R45 R48 to R51 Control the resistor values with a digital multimeter Bend the leads at 0 4 with a lead forming tool 2 Diodes Add D10 D11 These diodes are installed vertically cathode black ring on top Warning Make sure to respect the direction of the diodes wh...

Page 7: ...o the hole Do not reverse they may explode 7 Connector Solder the connector CN3 Solder one pin first check verticality then solder the other pins Warning the connector pins must be exactly perpendicular to the PCB to allow proper insertion in the preamp board 8 Jack connector Add CN1 The position of the socket is important for a good front plate matching It must sit flat on the PCB Press firmly th...

Page 8: ... into the front panel while fitting the CN2 connector pins into the socket on the preamp PCB Screw in the front nut through the beveled front spacer with an M12 socket spanner 11 Closing With cutting pliers cut the 4 lugs attaching the transformer opening Cleanup the cuts with a small file Attach the cover PCB with four M3x6 countersunk screws Copyright 2013 SoundSkulptor ...

Search results

Summary of Contents for MP 512

Reviews:

Related manuals for MP 512

Brands by name

Popular brands

Sound Skulptor MP 512, Assembly Manual

Search results

Summary of Contents for MP 512

Reviews:

Related manuals for MP 512

Brands by name

Popular brands