AcousticControl-400-pwr-sm维修电路原理图.pdf

Technical Document Distribution Hello, Welcome to MusicParts.Com, Inc. your online resource for technical documents and service information. This PDF package may contain information, schematics, parts lists, images, engineering changes, previous versions, circuit descriptions, and many other unique features about the product you have chosen. This document was assembled from a variety of sources and is the result of our many years in the music repair business. NOTE: Large original over-sized drawings will need to be taped together. We feel this is better than reducing them and losing the fine details. VIEWING: This document is utilizing PAGE-ON-DEMAND downloading. This will let you navigate to any page without waiting for the entire file to download. Just click ON the thumbnails. PRINTING: Very Important! When the print dialog appears, please make sure “REDUCE TO PAPER SIZE” OR SHRINK OVERSIZED PAGES is checked, otherwise you may cut off the edge of the page. This will compensate for your printers margins and produce a great looking printout. Also please stay online while printing this document to make sure you get all the pages. 2006 MusicParts.Com, Inc. MusicParts.Com Visit us on the web at: http:/ Email us at: Brand: Acoustic Model 400 Product: Stereo Power Amplifier Description: Service Manual Musicparts Document Number: 52445 TechTips: Yes Pages: 12 Dated: 1975-76 RadioFans.CN 收音机爱 好者资料库MusicParts.ComRadioFans.CN 收音机爱 好者资料库MusicParts.ComRadioFans.CN 收音机爱 好者资料库MusicParts.ComRadioFans.CN 收音机爱 好者资料库MusicParts.ComRadioFans.CN 收音机爱 好者资料库MusicParts.ComRadioFans.CN 收音机爱 好者资料库MusicParts.ComRadioFans.CN 收音机爱 好者资料库MusicParts.ComRadioFans.CN 收音机爱 好者资料库MusicParts.ComRadioFans.CN 收音机爱 好者资料库MusicParts.ComRadioFans.CN 收音机爱 好者资料库MusicParts.ComRadioFans.CN 收音机爱 好者资料库MusicParts.ComRadioFans.CN 收音机爱 好者资料库MusicParts.Com TechTip: open groundCheck the phono jack on the PCB. If the shell has not been soldered to the base ring (on component side) solder it. Otherwise ground contact will be lost.MusicParts.Com TechTip: Setting biasR119 is custom selected to obtain correct bias:0.1v 1KHz input signal, adjust for x-over just gone.Double check voltage across R207 (bn/wt wire to ground), with no signal and fully warmed up, should be typically 40mV.MusicParts.Com TechTip: Generic xrefAcoustic Part# 480037 xref to 2N3233, replace with 2N3773MusicParts.ComRadioFans.CN 收音机爱 好者资料库