DBX

[topcat]

303a card for 128 schematic

 

[StephenGiles]

DBX120 Subharmonic Synth

 

[gyraf]

DBX 160XT Schematic.zip.pdf  - 673kb

Rename to .zip and unzip (for circumventing upload restrictions)

Jakob E.

 

[Chris]

A little blurry, but readable...

 

[rogs]

dbx286s schematic

 

[scott2000]

120XP Schematic

 

[smilan]

166 schematic (good quality)

 

[Script]

DBX166 (Blackface)

- Service Manual
- Schematics (slightly better than the one post somewhere above)

 

[atavacron]

905 manual incl. schematic

 

[pucho812]

DBX 160S

 

[zzzzz]

My huge collection of schematics, user manuals, service manuals / info, hookups, recall sheets, and more for dbx 900 Series units and racks.

• 410, 411, 911, 941, 942 dbx Type I and Type II Noise Reduction modules
  
  
• 902 De-Esser
  • mostly complete service docs for 1980s discrete VCA versions ("silver can" 2001 and 202X)
  • 1990s IC based VCA user manual and parts list, but missing schematic.
• 903 Compressor
  • very detailed and mostly complete docs for:
    • original 1980s discrete 202C VCA
    • second rev late 1980s with 202X VCA
    • early 1990s with IC based VCA
  • ...and several mid to late 1990s revisions with IC based VCA.
• 904 Gate
  • early 1980s user manual with schematic for version with 2001 "silver can" VCA
  • late 1980s / early 1990s schematic for version with 202X VCA
• 905 Equalizer (1980s and 1990s revisions)
  
  
• 906 Flanger+
  • incomplete - schematic and partial tech sheet only, no manual or service notes
• 907 Stereo Gated Comp Slave
  • incomplete - partial tech sheet only
• 929 Single Ended Noise Reduction
  
  
• 933 Distribution Amplifier / Mixer
  
  
• F900 Frame (1980s, "Neon Bulb" version)
  • incomplete - contains:
  • original PSU schematic (for F900 or 208 frame)
  • tech sheet
  • PSU hookup diagram and rough trace info
• F900A Frame (1990s)
  • very low resolution, could be improved...
• FS900 2-space 1U frame (1990s)

If anyone has other 900 series documents they'd like to contribute, please message me.

Google Drive link to occasionally updated repository with all of the above and more, and my additional google doc with findings and hookup info about various 900 series modules, frames, etc.

(last updated 10/6/2024)

 

[zzzzz]

early 1980s "neon-bulb" dbx F900 frame power supply schematic. same PSU module for 208 and (probably) 158 noise reduction racks.

(uploading this one as its own post because people have apparently been searching for this schematic for years)