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PERCALL V1- ASSEMBLY GUIDE – MAY 2020

FEMALE PIN HEADERS

Place the female pin headers on the control board over the silkscreen markings at positions and solder. Double check 

they all are perfectly straight.
Qty

PINs

Name on PCB

2

2x8

SV101, SV102

1

2x6

SV100

Now it’s a good moment to split the boards apart.

SPACER

Secure the spacer onto the CONTROL PCB (through the two hole with silver outline) with the main body of the spacer on

the component side, and the nut on the opposite.

FADER

Place the faders on the PCB where it is indicated by the silkscreen (on the reverse side to the smaller 
components). You can solder two of the small pins first to make sure faders are straight. Then solder 
the rest. 

Qty Name on PCB

4

D_P_1, D_P_2, D_P_3, D_P_4

You’re nearly at the end, but the next part is critical and takes a good bit of concentration. If you’re 
feeling a bit strained, a break would definitely help. Reply to those unread messages or prove 

someone wrong in Internet, for example. Mechanical parts are really delicate and will need your full 
attention.

FRONT PANEL COMPONENTS MOUNTING TIPS:

Now we will proceed to mount mechanical parts to panel. This part of the assembly is CRITICAL. Please take your time 

and read the following instructions carefully.

These components must 

 

 

NOT

 

  be soldered until they are placed on the PCB and fully attached to the front panel!!!

 

 

There are two reasons for this:

The height of the panel components are not all the same. Because of this, if not attached properly before 

soldering, they will not stay properly seated against the panel. This might cause mechanical stress reducing their 

life expectancy and in the worst case cause them to break.

The second reason is that it is very difficult to align the components to the holes if the panel is not positioned 

prior to soldering.

MINI-JACKS

Place the mini-jacks on the PCB ensuring they are on the side with the silkscreen. Some of the minijacks ground legs 

will share the same solder holes (the 12 at the bottom). 

don't solder them

 

until the front panel is in place with all nuts 

screwed to it.

 This way it's easier to solder them in the right position. Keep in mind that the front panel holes are quite 

narrow and it is almost impossible to place it with all the components already soldered. 

4

Summary of Contents for PERCALL V1

Page 1: ...0 R111 R112 R123 R124 R125 R126 R144 R145 R146 R147 22 10k Brown black black red brown R1 R5 R6 R8 R10 R11 R14 R17 R18 R58 R59 R76 R77 R78 R79 R100 R132 R133 R134 R135 R136 R137 12 2k2 Red red black brown brown R19 R20 R21 R23 R25 R27 R29 R31 R117 R118 R119 R120 11 1M Brown black black yellow brown R13 R26 R30 R33 R35 R53 R56 R72 R73 R74 R75 9 1k Brown black black brown brown R129 R131 R143 R148 R...

Page 2: ... care to orientate them properly the notch or dot on one end of the IC should match the image on the silkscreen and solder them into their correct positions Qty Value Name on PCB 4 DIL8 IC1 IC8 IC9 IC100 4 DIL14 IC4 IC5 IC6 IC7 2 DIL14 IC10 IC11 1 DIL16 IC2 1 DIL14 IC3 BAG B CAPACITORS Identifying capacitors can be quite tricky Codes stated are indicative please take a look at this guide for help ...

Page 3: ... T100 T101 T102 T103 6 2n3904 T1 T2 T4 T5 T14 T15 POWER CONNECTOR Solder the power connector at POWER ensuring it is facing out from the edge of the PCB ICs Place the ICs in their respective sockets taking note of their orientation the notch or dot on the top of the IC must match that of the socket and silkscreen Qty Value Name on PCB 4 TL072 IC1 IC8 IC9 IC100 4 TL074 IC4 IC5 IC6 IC7 2 AS3360 IC10...

Page 4: ... full attention FRONT PANEL COMPONENTS MOUNTING TIPS Now we will proceed to mount mechanical parts to panel This part of the assembly is CRITICAL Please take your time and read the following instructions carefully These components must NOT be soldered until they are placed on the PCB and fully attached to the front panel There are two reasons for this The height of the panel components are not all...

Page 5: ...ting the parts one by one if necessary until it fits At this point a pair of fine tweezers can be helpful To Finish Screw in the parts in this order A Mini jacks B Pots Ensuring all of the above parts are flush with the panel and both PCB and panel are perfectly parallel Then you can finally solder them Fit the LEDs on the panel holes and solder them Put the knobs on the potentiometers and the red...

Page 6: ...PERCALL V1 ASSEMBLY GUIDE MAY 2020 6 IC10 IC11 IC8 IC9 ...

Page 7: ...PERCALL V1 ASSEMBLY GUIDE MAY 2020 7 ...

Page 8: ...PERCALL V1 ASSEMBLY GUIDE MAY 2020 8 ...

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