Hello everyone, I'm looking for service manual a power supply built Wayne Kerr the model is PDD3502A. Can anyone help me? Thanks to all Joseph
- posted
13 years ago
Hello everyone, I'm looking for service manual a power supply built Wayne Kerr the model is PDD3502A. Can anyone help me? Thanks to all Joseph
Troubleshooting on 'power PDD3502A built Wayne Kerr gave the first results, the fault is in a control card marked with the code, "5NPD3502C BATCH 024"; on this card I found two briken diodes with case minimelf, seems like a diode 1N4148 but the other seems a zener; the card did not label with an indication of the components; if someone can send me the circuit diagram with the layout of this board I thank him in advance.
Joseph
The repair goes, I measured the voltage across two diodes corresponding (but in the second twin channel adapter card), I read a voltage of 5.1 V, then the zener diode may be broken. I will keep you updated as soon as possible. I am always waiting for some wiring. Thank you all. Joseph
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