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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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13" Sanyo tv model:31C460U,chassis:G2C-460uo,year:June 89
13" Sanyo tv model:31C460U,chassis:G2C-460uo,year:June 89.No power
up,has 5v micro,tact switches,IR receiver. The relay coil is missing it's B+ as the SPMS power supply is dead,I replaced the opto couplers but no luck.Anyone have any tips?.Thanks. Sidney Dartmouth,Nova Scotia Canada |
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#2
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13" Sanyo tv model:31C460U,chassis:G2C-460uo,year:June 89
wrote in message ups.com... 13" Sanyo tv model:31C460U,chassis:G2C-460uo,year:June 89.No power up,has 5v micro,tact switches,IR receiver. The relay coil is missing it's B+ as the SPMS power supply is dead,I replaced the opto couplers but no luck.Anyone have any tips?.Thanks. bad voltage regulator? Often there's just a couple of diodes and a reg to give the req'd logic DC power. bad caps? Start measuring voltages at the AC line and see how far you get. |
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