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Now downloading free:Sony (Bulletin) STR-D311  [report bad file]  

Download Sony (Bulletin) STR-D311 docs - Home electronics, consumer electronics, professional electronics - Television sets (plasma, HDTV, LCD, TFT, Big screen tv), Monitors (TFT-LCD panels, conventional CRT), VCR, DVD, Car Audio etc.

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File name:HFP0436__.PDF
Size:9 kB
MD5 Checksum:342f3311f950383f6617d14b2ae6e28b

Sony (Bulletin)



Original Chassis:Output Transistor Failure
Descr:Service Bulletin - Symptom:Output Transistors fail, sometimes repeatedly, after replacement - pag. 2 (?)
Group:Electronics > Documentation >
Uploaded:2007-01-12 19:14:13
Multipart:No multipart

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Extracted files:1
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HFP0436__.PDFHi-Fi Products CSA-13 Service Bulletin Sony Service Company - Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 Model: STRD311 No. 436 Subject: Output Transistor Failure Symptom: (11) Date: May 1, 1995 Output Transistors fail, sometimes repeatedly, after replacement. Solution: After replacing the defective output transistors, and any other defective components, change the value of the resistors as noted below. REF FORMER DESCRIPTION R707 R757 3.3K OHM 1/4 WATT 3.3K OHM 1/4 WATT PART NUMBER 1-249-423-11 1-249-423-11 NEW DESCRIPTION 15K OHM 1/4 WATT 15K OHM 1/4 WATT PART NUMBER 1-249-431-11 1-240-431-11 Note: When replacing output transistors be sure to use a sufficient amount of heat sink compound on the replacement device. Tighten the mounting screw with enough force to firmly secure the transistor to the heat sink for adequate heat transfer. In some instances the following 47uf 25V electrolytic capacitors, C709, 759, 704, and 7

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