I am repairing a Denon receiver and found 2 shorted diodes. one is a zener and the other is unknown. I took a picture and the markings are T4 and what appears to be B2 or 82 or 8Z. Can anyone identify these parts and know the part number. thanks
HELP identifying parts
Collapse
X
-
Re: HELP identifying parts
Hi
Tech2014 that part T4 is a Silicon Epitaxial Planar Diode.
https://cdn.badcaps-static.com/pdfs/...6534b2f8a8.pdf
Related Topics
Collapse
-
by caspianDear members,
I have a linear variable power supply with unknown brand name that I used for voltage injection.
Then it failed. I discovered that its transistors (Q1 and Q2) are shorted.
In addition, I discovered that its zener diodes are defective.
I can replace the burned transistors.
But I do not know the model of the zener diodes. the model number is not marked on the zener diodes.
Therefore, I cannot replace the zener diodes.
I do not want to test the zener diodes in a test circuit to discover their model or value.
no schematics are available... -
by DvsrHi. I need help from wiser guys. I am amateur in electronics and can't figure this out by myself.
I bought faulty speakers, M-Audio AV40's. Other speaker has all the electronics in it and the other speaker is just passive one powered by the other speaker's amp. Original problem with the speakers was loud buzzing. I figured out that there is something wrong with the capacitors. I went ahead and replaced every electrolytic capacitor on the PCB. The caps are good quality and have the same values as the original ones.
After replacing the caps I started testing out the speaker. It seemed...4 Photos-
Channel: Troubleshooting Audio Equipment
09-10-2025, 10:20 AM -
-
by UL161Hi I am trying to refurbish this crossover with some higher quality poly-caps/parts... The speaker is a in-wall Polk 65-RT... Key questions I have are:
1) What in the world is the yellow part on the board (label is MET 1.0J 100V)?... Should I even consider replacing it?
2) The 470uF cap.... Does anyone know have a suggestion as to where I can find a reasonable audio quality polycap near that value? (or at least 3 160s or the like?) { I don't want to spend $70 just to replace this one if I can) (maybe even someone looking at this circuit could even tell if this cap is important...-
Channel: Troubleshooting Audio Equipment
-
-
by dazzystarDoes anyone know what value these zener diodes are please on a Samsung BN44-00517C PSU board?
... -
by ElaionHi kind people, I have a GT730 card with burnt components can somebody tell me what part it is?...10-20-2024, 01:59 AM
- Loading...
- No more items.
Comment