1. older parts on PCB
When nsert ng parts there are 3 resources that w ll be useful.
A) ilkscreen images (eg. for any hard to read designations)
S lkscreens can be downloaded on the manual page: s lkscreens
B) General BOM (eg. For ore info on specific parts/values)
General BOM can be found on the manual page: General BOM
C) chematic (eg. For general confir ation of circuit)
General BOM can be found on the manual page: Schemat cs
Armed w th that nfo, let's start!
Insert all parts on to the PCB as marked on the s lkscreen. All designations and values for parts are arked on the PCB for ease
TIP :
Start w th smaller parts (res stors etc.) and work up to the larger parts
Solder nl ne sockets for trans stors on both EQ boards
F t bottom parts f rst on BTM PCB as there'll be less room to solder up top.
Make sure no metal legs protrude too much on the TOP PCB
All the small 1/8W s zed res stors near the rotary sw tches are 4M7 f not stated otherw se.
Green molex K & 24V open ng should face the m ddle rotary sw tch
Green molex P & 0V open ng should face the PCB cutout
The 47pF caps are a hot top c.. some v ntage un ts have them removed, some don't. They exh b t a large drop n the top end when
EQ s pushed n, however f you are try ng to emulate a part cular v ntage un t then the footpr nt s there. It's up to you!
© the DON classics 2015 page 2 of 20
