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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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Intersil CA3162E/CA3161E A/D BCD/7Segment problem Weller SolderingStation
Subject: Intersil CA3162E/CA3161E A/D BCD/7Segment problem
Hi I am trying to fix my Weller soldering station which has lost its temperature readout. This particular model has the Intersil CA3162E/CA3161E A/D and BCD/7Segment chips. When first turned on the display flashes "EEE" and then goes blank. I shotgunned the repair by replacing the filter caps in the power supply and though I had it fixed but it is back to same problem. In reading the Intersil application notes for the A/D convertor I don't see a logical mode where EEE would be displayed Does anyone have advice for troubleshooting this configuration? -- Joe Leikhim K4SAT "The RFI-EMI-GUY"© "Treason doth never prosper: what's the reason? For if it prosper, none dare call it treason." "Follow The Money" ;-P |
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