2SD1880 DATASHEET PDF

Ordering number:ENA. Color TV Horizontal Deflection. Output Applications. Package Dimensions. Collector-to-Base Voltage. Collector-to-Emitter Voltage.

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Connect with us. Electronics Forums. Too HOT to handle? Reply to Thread. Search Forums Recent Posts. Scroll to continue with content. Apr 8, 1. The HOT and switching regulator transistor were shorted. I replaced the regulator with an NTE which is a sub for an E The set powered up fine with a great picture.

A half hour later, same parts shorted out again. I decided to order the original parts from Daewoo and have now received and installed them. I monitored the collector of the HOT and it appears to be a nice clean pulse. The temperature of the HOT is another story. Thanks for your reply. Apr 8, 2. The NTE is not a good sub in that set.

Follow the service bulletin, required, for the overheating and blowing HOT problem in that model. Plus there likely will be a bad cap on the HOT driver circuit. I no longer have a copy of the service bulletin, but if Daewoo is still in business they can email it to you. As I recall, the bulletin made some changes to a couple of parts and added a 39 ohm resistor across the B-E of the HOT as well. Apr 8, 3. Apr 8, 4. Replace 1. This fixes these T. Hope this helps you.

Apr 8, 5. The cold joints cause noise in the base circuit and this high switching speed noise causes the HOT to over heat. If you take a 50X magnifier and look at the joints, that are bad, you can see the cracks in the solder. Apr 8, 6. Apr 9, 7. You must log in or sign up to reply here. Show Ignored Content.

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