Downloadable Instruction/Technical/Maintenance Materials

For Dorrough Electronics Products (PDF Format)

Group ‘A’  (Loudness Monitors Current & Legacy Products)

 (1985)

 1)- Instruction Manual Dorrough Loudness Monitor Model 40-A

 2)- Technical Instruction Manual Dorrough Loudness Dorrough

       Loudness Monitors Models 40-A  ~  40-B  ~  10-A & B  ~  

       20-A & B  ~   21-A & B

 3)- Schematic PC Board #111-404-

 4)- Schematic Peak Hold Circuit PC Board 110-404-

 5)- Revised Meter Calibration Procedure (Series-1 Only!)

(1992)

 6)-  Instruction Manual Digital Loudness Meters Models 280 & 380

       (Analog Reading Meters)

 7)-  Schematic For PC Board 154-383-

 8)-  Instruction Manual Digital Loudness Meters Models 280 & 380

       (Digital Reading Meters)

 9)-  Schematic For PC Board 155-385-

(1995)

 10)- Technical Instruction Manual Dorrough Loudness Monitors

        Models 40-A, B, C2  ~  10-A, B, C2   ~   12-A, B, C2   ~   20-A,B, C2   ~

                   240-A, B, C-2   ~   400-A, B, C2

 11)- Schematic For PC Board 168-4042-

(2002)

 12)- Technical Instruction Manual Dorrough Analog & Digital Audio

         Loudness Meters (Covers All Current Models December 16, 2002)

 13)- Schematics For PC Boards:  202-, 204-, 205, & 206-

 14)- Schematic For PC Board 201-12-AES

 15)- Instruction Manual RW-100 Remote Control

 Group ‘B’ (Test Sets/Video Meters/Power Line Meters/Generators)

(1989)

 1)-  Technical Manual Dorrough Stereo Signal Test Set Model 1200

(1993)

 2)-  Technical Instruction Manual Dorrough Composite Video Luminance

        Meter Model VLM-40 (NTSC & PAL)

 (1998)

 3)-  Technical Instruction Manual For Dorrough Power Line Monitor

        Model PLM-120

 (2002)

 4)-  Instruction Manual For Dorrough Dual Domain Analog/Digital

       Test Generator Model TG-10A

 (2003)

 5)-  Instruction Manual For Dorrough Audio Bitstream Decoder

 Group ‘C’ (Audio Processors)

 (1973)

 1)-  Technical Instruction Booklet Discriminate Audio Processor/

        AGC-Peak Limiter Model 310

 2)-  DAP 310 Power Supply Update Sheet

 (1982)

 3)-  Technical Instruction Booklet Discriminate Audio Processor Model 610

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