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#1
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![]() Hello OMs: I am seeking some help from owners of FT1000(D) owners. Please contact me if you are willing to provide me some resistance measurements around the PS (voltage regulator) Unit pcb. I need about 12 reference measurements to be made. Requires use of ohmmeter and removal of the radio's top cover. eMail: I have just replaced the bridge diode rectifier ( D9301) used for the regulated 30 volt section of the power supply. It is a $20.00 item from YAESU that I do not want to function as a fuse ! The resistance measurements are needed as a comparative reference before I power on the radio. If your measurements vary greatly from what I show here, then I must look deeper. Would appreciate help very much. Thanks es 73, de ~ Vince ~ WA2RSX |
#2
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Vince wrote in message . ..
Hello OMs: I am seeking some help from owners of FT1000(D) owners. Please contact me if you are willing to provide me some resistance measurements around the PS (voltage regulator) Unit pcb. I need about 12 reference measurements to be made. Requires use of ohmmeter and removal of the radio's top cover. eMail: I have just replaced the bridge diode rectifier ( D9301) used for the regulated 30 volt section of the power supply. It is a $20.00 item from YAESU that I do not want to function as a fuse ! The resistance measurements are needed as a comparative reference before I power on the radio. If your measurements vary greatly from what I show here, then I must look deeper. Would appreciate help very much. Thanks es 73, Hello Vince, am surprised the diode bridge was taken out - there must be a dead short AFTER it - have you checked the pass transistors - btw, send me a circuit and I will try to fault find. What does it feed? 73 de VK3BFA Andrew de ~ Vince ~ WA2RSX |
#3
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Vince wrote in message . ..
Hello OMs: I am seeking some help from owners of FT1000(D) owners. Please contact me if you are willing to provide me some resistance measurements around the PS (voltage regulator) Unit pcb. I need about 12 reference measurements to be made. Requires use of ohmmeter and removal of the radio's top cover. eMail: I have just replaced the bridge diode rectifier ( D9301) used for the regulated 30 volt section of the power supply. It is a $20.00 item from YAESU that I do not want to function as a fuse ! The resistance measurements are needed as a comparative reference before I power on the radio. If your measurements vary greatly from what I show here, then I must look deeper. Would appreciate help very much. Thanks es 73, Hello Vince, am surprised the diode bridge was taken out - there must be a dead short AFTER it - have you checked the pass transistors - btw, send me a circuit and I will try to fault find. What does it feed? 73 de VK3BFA Andrew de ~ Vince ~ WA2RSX |
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