I'm ordering some new diodes for the driver section of the power supply but for the life of me I can't make out the numbers on the diodes and finding it on the schematic is proving tough also. The diodes i'm referring to is D34/D34A/D34B/D34C. In the pic you can see that D34C is broken in half.
I know the value of the resistors. Am I suppose to measure the length/width when searching for them on Digikey? They come in many sizes.
I know the value of the resistors. Am I suppose to measure the length/width when searching for them on Digikey? They come in many sizes.
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Does either end of the diode connect to ground?
If so, they could be 9 or 10v zeners. The 10v is more common in newer designs.
Service manual, eprom result list | Elektrotanya
If so, they could be 9 or 10v zeners. The 10v is more common in newer designs.
Service manual, eprom result list | Elektrotanya
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For no particular reason, I never used the 900 series diodes. I always use the 1n52.. or 1n47.. The one you chose should be equally good.
The following will work but the 41 may mean that it's a 1N5241, an 11v Zener.
Blocked
The watt rating of devices like resistors, diodes, small transistors... is typically based on size. Size typically determines surface area and surface area determines the ability to dissipate heat.
The tolerance for the B-suffix diodes (fairly standard) is ±5%.
The following will work but the 41 may mean that it's a 1N5241, an 11v Zener.
Blocked
The watt rating of devices like resistors, diodes, small transistors... is typically based on size. Size typically determines surface area and surface area determines the ability to dissipate heat.
The tolerance for the B-suffix diodes (fairly standard) is ±5%.
this one did the trick very well
https://www.ebay.com/itm/114294363308
i'm still having trouble reading the AQ20 schematic, i'll be starting classes 9/12 for electrical engineerinig hoping to further my knowledge on diagnosing and repairing
https://www.ebay.com/itm/114294363308
i'm still having trouble reading the AQ20 schematic, i'll be starting classes 9/12 for electrical engineerinig hoping to further my knowledge on diagnosing and repairing
I know where the audio(supply) drivers are on the board and schematic, but i don't understand how they are connected so as to make sure nothing is shorted or connected wrong. There are many solder points around the legs and burnt traces so i'm having to make bridges.
For example, the pic in post #21, Q8 and Q7, on the back side of the board the supply(1st leg) on both are connected/crossed with D34 and R60, and i can see the middle leg is connected to the trace above and below Q7/Q8, but I don't see a connection on either side of the board for the 3rd leg
For example, the pic in post #21, Q8 and Q7, on the back side of the board the supply(1st leg) on both are connected/crossed with D34 and R60, and i can see the middle leg is connected to the trace above and below Q7/Q8, but I don't see a connection on either side of the board for the 3rd leg