Gallien-krueger_400RB-IV,_BL-600_(2005)_Power_Amp_Schematic电路图.pdf

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1、NOTE: Backline 600 uses the same power amp as the 400RB-IV. RadioFans.CN 收音机爱 好者资料库 A3A4 Page:Page:1Of:Of:1 XX X X X X X X X X X X Drawing(s) attached QtyQtyQtyQty 1 2 2 1 1 Continued on Supplement Page galliengallien technology Engineering Change Order 400RB-IV Artwork Assembly Dwg. Board Artwork C

2、ontrol Form Fab Drawing Inspection Proc. R5, R14 Ref. Designator Ref. Designator Q7 Test Parts DeletedParts Deleted Noli Noli TC Other Affected AssembliesOther Affected Assemblies DateInitialsDateInitials Accounting Gallien-KruegerGallien-Krueger DateEffectiveDateEffective 145-0240-A Assembly Number

3、s: Effective Date: Approved by: New ECO Rev #: Distribute To: Originator: Assembly Numbers: Effective Date: Approved by: New ECO Rev #: Distribute To: Originator: Document UpdateDocument Update Current Rev #:Current Rev #: 8/10/2005 Customer Name: Model: Assembly Description: Customer Name: Model: A

4、ssembly Description: Parts Added Description Parts Added Description 010-0000-0 C6 R1443.2k RES, 1/8W060-4323-0 031-2106-0CAP 10uF, 50V 060-1213-0 Q7, Q7A 12.1k RES, 1/8W 2SC2240BL Update Part Master File. Update BOM 010-0010-0 Ref. Designator Ref. Designator 2SC3381BL Part Number Reason For Change

5、Part Number Reason For Change Continued on ECO Supplement Page Costing 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 Q7(2SC3381) on power amp is obsolete, replace with two 2SC2240BL. 2.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 1

6、0mVdc.Service Manual Incoming Q.C. Engineering Assembly DistributionDistribution 290 Assemblies , 302 Assembly (Head) 303 Assemblies (Combo) Update PCB board part number to 145-0240-A4 Update Schematic Description Of ChangeDescription Of Change Production Eng. Purchasing Q.A. Service Power Amp 206-0240-A Next Buy Next Production RunAll in Service All in Stock All in Process Beginning Serial Number: BOM Enrique Hernandez InitialsInitials RAG Noli 400RB-IV 206-0240 Power Amp, 2/1/2006 RadioFans.CN 收音机爱 好者资料库 6240A4.sch-1 - Wed Feb 01 10:10:53 2006 RadioFans.CN 收音机爱 好者资料库