Home |
Search |
Today's Posts |
|
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. |
|
LinkBack | Thread Tools | Display Modes |
#1
Posted to sci.electronics.repair
|
|||
|
|||
SONY KV-X2531D/AE1C TV still no video
Hi folks,
I have 1990 SONY TV KV-X2531D/AE1C which has started to drop video intermittantly from about 2 months ago. H/V and stuff are okay (I can get a picture from teletext, but with green missing). I traced the problem to the video (B-) board. When I would cool down IC301/TDA4580 with freeze-spray I could bring back video. So I decided to buy a new 4580 off eBay (the part is actually new) for 10 Euros and had the IC replaced by a professional who has the proper re-/soldering equipment. He soldered a IC-socket instead of the IC for easy replacement. So I replaced the board and fired it up again, and everything worked perfectly --- for 3 hours . Then the same problem would occur again, so the IC was not the souce. In the area of the IC (to be hit by the freeze-stream) was also a cap and some diodes which I tested with an ESR-meter and a DMM respectively. Can the cap still be the problem even when its ESR is okay (about 0.2 ohms) ?? Any other hints ? Adrian |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Ricoh Video Camera Recorder - Really a Sony? | Electronics Repair | |||
Sony tv KV36 jumps to video input on ANY remote entry | Electronics Repair | |||
SONY Watchman FDL-3500 LCD video problem | Electronics Repair | |||
Sony camcorder problem CCD-TR5, no video output | Electronics Repair | |||
Sony Model KV-32XBR48 slow turn on and flashing video for short period at turn on | Electronics Repair |