GallienKrueger BL112 free download

File name BL112 POWERAMP 206-0151.pdf

Service Manual BACKLINE 112 Table of Contents Operating Instructions...xx Schematics ...xx PCB Lay-out...xx Engineering Change Orders(ECOs)...xx Bill Of Materials...xx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx 6190A1.sch-1 - Fri Oct 03 16:50:29 2003 6190A2.sch-1 - Thu Nov 27 14:19:09 2003 6190A3.sch-1 - Sat Dec 13 12:23:50 2003 6191A.sch-1 - Fri Dec 06 14:51:25 2002 gallien technology Customer Name: Model: Assembly Description: Assembly Numbers: Engineering Change Order Current Rev #: Distribute To: Originator: Approved by: Effective Date: Gallien-Krueger Backline 112 Backline 112 power amp 206-0190-A Effective A New ECO Rev #: Page: 1 Of: A1 1 A.R.V. 9/30/2003 Date Initials Document Update Next Buy Next Production Run Artwork Assembly Dwg. Board Artwork X X All in Process All in Service X X All in Stock Beginning Serial Number: Reason For Change X X BOM Control Form Costing Fab Drawing Inspection Proc. Part Master File 9/30/03 A.R.V. To prevent R35 and R41 from overheating when the headphone output is not being used. X X X Schematic Service Manual Test Procedure 9/30/03 A.R.V. Noli Other Affected Assemblies Continued on ECO Supplement Page Description Of Change Distribution Accounting Assembly Customer Date Initials Remove C17 and C18. X X X X Engineering Incoming Q.C. Planning Production Eng. Purchasing Q.A. Receiving X X Service Test Vendor Continued on ECO Supplement Page Part Number Description Qty Parts Added Ref. Designator Drawing(s) attached Parts Deleted Qty Ref. Designator 032 4474 0 47uf PE ap 2 17 and 18 ECO 206-0190 112 power amp.xls, 4/28/2004 gallien technology Customer Name: Model: Assembly Description: Assembly Numbers: Engineering Change Order Current Rev #: Distribute To: Originator: Approved by: Effective Date: Gallien-Krueger Backline 112 Backline 112 power amp 206-0190-A Effective A1 RAG New ECO Rev #: Page: 1 Of: A2 1 11/18/2003 Date Initials Document Update Next Buy Next Production Run Artwork Assembly Dwg. All in Process All in Service All in Stock Beginning Serial Number: X X X Reason For Change Board Artwork BOM Control Form Costing Fab Drawing Inspection Proc. Prevent fuse failure due to inrush current at turn on. Expand supply table to include transformer hookup for 220V and 240V. X X X Part Master File Schematic Service Manual Test Procedure Other Affected Assemblies 303-0190-A, All Voltages Continued on ECO Supplement Page Description Of Change Distribution Accounting Assembly Date Initials Add thermistors in serries with each transformer coil. Update schematic and board silkscreen with new supply table. X X x X Engineering Incoming Q.C. Production Eng. Purchasing Q.A. Service Te