Gallien krueger 400 rb iv bl 600 2005 power amp schematic
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A3 A4 Page: 1 Of: 1 XX X X X X X X X X X X Drawing(s) attached Qty Qty 1 2 2 1 1 Continued on Supplement Page gallien technology Engineering Change Order 400RB-IV Artwork Assembly Dwg. Board Artwork Control Form Fab Drawing Inspection Proc. R5, R14 Ref. Designator Q7 Test Parts Deleted Noli Noli TC Other Affected Assemblies Date Initials Accounting Gallien-Krueger Date Effective 145-0240-A Assembly Numbers: Effective Date:Approved by:New ECO Rev #: Distribute To: Originator: Document UpdateCurrent Rev #: 8/10/2005 Customer Name: Model: Assembly Description: Parts Added Description 010-0000-0 C6 R14 43.2k RES, 1/8W 060-4323-0 031-2106-0 CAP 10uF, 50V 060-1213-0Q7, Q7A 12.1k RES, 1/8W 2SC2240BL Update Part Master File. Update BOM 010-0010-0 Ref. Designator 2SC3381BL Part NumberReason For Change Continued on ECO Supplement PageCosting Schematic Test Procedure Part Master File 1. Q7(2SC3381) on power amp is obsolete, replace with two 2SC2240BL. 2. Remove R5, change values of R14 to 43.2K and C6 to 1uF, 50V. This is to decrease offset DC voltage from 45mVdc to 10mVdc. Service Manual Incoming Q.C. Engineering AssemblyDistribution 290 Assemblies , 302 Assembly (Head) 303 Assemblies (Combo) Update PCB board part number to 145-0240-A4 Update Schematic Description Of Change Production Eng. Purchasing Q.A. Service Power Amp 206-0240-A Next Buy Next Production Run All in Service All in Stock All in Process Beginning Serial Number: BOM Enrique Hernandez Initials RAG Noli 400RB-IV 206-0240 Power Amp, 2/1/2006
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6240A4.sch-1 - Wed Feb 01 10:10:53 2006