BOWA-electronic

BOWA ARC 250 and 303 Service Manual Ver 2.2 Oct 2013

Service Manual

110 Pages

Table of Contents  Table of Contents Key ... 6 1.  2.  3.  Using this service manual ...12 1.1.  Revision index ...12  1.2.  Validity...12  1.3.  Other applicable documents ...12  1.4.  Icons and labelling ...13 Format of warning instructions ...13  1.4.2.  Risk levels in warning instructions...13  1.4.3.  Information ...13  1.4.4.  Other symbols and marks ...14  Safety information for service technicians ...15 2.1.  Safety information ...15  2.2.  Warnings and safety instructions ...15 2.2.1.  General notes ...15  2.2.2.  Special notes ...16  2.2.3.  Working with live equipment ...16  2.2.4.  Working with the equipment switched off ...17  Construction and functionality ...18 3.1.  3.2.  8  1.4.1.  Power board ...19 3.1.1.  Mains rectifier / AC/DC Converter ...20  3.1.2.  Power supply unit (PSU) ...20  3.1.3.  Low voltage power supply ...21  3.1.4.  Generator ...23  3.1.5.  Control electronics ...25  Control board...26 3.2.1.  Sensors ...27  3.2.2.  Connectors for finger switch modules (3) ...28  3.2.3.  Connection to Relay-autostart board (5) ...28  3.2.4.  Interfaces (6)...29  3.2.5.  Tone generator / audio circuit (7) ...29  3.2.6.  MCU (8) ...29  3.2.7.  Connection to LWL board (9) ...30  3.2.8.  Footswitch input socket (10) ...30  ARC 250/303 Service Manual  900-301_SM_V2.2_11068-S1-20130425-EN
File Type: PDF
File Size: 4.02 MB
File Name: 900-301_SM_V2.2_11068-S0-20130424-EN.pdf

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