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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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Odd problem turning on Sony XBR
Hello all,
I've got a 27inch XBR, cicra 1991. Sound and picture still great. However, in the last couple of days, it's acting very weird when it's first turned on. Instead of the normal relay "click" and short delay before picture and sound, there is now the same click, followed by a sound from the speaker ckkkkkk ! for about 1/2 a second. The TV appears dead for about 20 seconds, then, all by itself, there is another relay click, followed by normal operation. Any insight to the behavior appreciated. Dave |
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Odd problem turning on Sony XBR
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Odd problem turning on Sony XBR
Could you please enlighten me regarding the "infamous sound
module failure" ? The sound module, which was for Stereo/MTS decoding, was built with surface mounted electrolytic capacitors. These capacitors would leak electrolyte after a few years and would dissolve the copper traces on the module. This would eventually cause the module to fail and you would have problems like weak sound, distorted sound, one channel missing, or no sound at all. Sony part no. SBX1637. This module has been used in a lot of products from several brands on TVs and VCRs. The soultion is to remove the module from the mainboard and install a new replacement in its place. But, this is just one possibility. Your problem can be anything, so you really have to get a professional to diagnose it for you to see if this is really the problem. - Reinhart |
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