I check the trace and they are both soldered into the ground trace and have been when it was working.
Shurly if this was soldered to ground on both legs this would effectively render it as a short?
What am I missing here?...
Billathome65
Member
Last Activity: 05-06-2026, 10:48 PM
Joined: 04-05-2026
Location: Manchester
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Confused with this ceramic capacitor
This orange capacitor is grounded on both legs when tested with a multimeter to ground point. But when removed it is good on the TC1 tester.
I check the trace and they are both soldered into the ground trace and have been when it was working.
Shurly if this was soldered to ground on both legs this would effectively render it as a short?
What am I missing here?... -
Cheers. I tracked down the short to one of the transistors.
The strange thing is it was reading fine in circuit but I noticed that when measured in the TC1 tester it read as a diode? However the other transistors read as transistors, so this was strange.
As it measured fine I reinserted and when I checked resistance it was showing a short between legs but not off board?
I ensured there was no solder bridge then replaced with another and the short disapeared.
Not had chance to reinstall the board yet due to a couple of fractured ribs but I hope... -
Measured OK out of circuit just waiting for a couple of bits befor getting back on this....Leave a comment:
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Need advice on direct replacement filter caps
X2 Elna 7500Uf 71v caps one reading 3.997 the other OL
As they are discontinued are there other direct replacements I can use? -
kenwood KA-76 amp resisitor advice
Working through my mess up which burnt out a few things on a kenwood KA-76 amp
I've got to the point where through the dim bulb the amp relay clicks but im getting no power through the bias pots so I measured these resistors they say 103J so I assume 1kohms?
But the 2 by the pots read 1.804ohm and the 2 by the output transistor read 567.8 in cercuit i'm assuming these are bad and need replacing?... -
Cheers so that red red Brown Gold.Leave a comment:
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Cheers eccerr0r...Leave a comment:
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What's this resistor colour code
Is this red, red, brown, gold or Red, red, black gold? It' reading 220.1ohm so assume its the first....
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No i'm trying to track down a short that only shows when the board is soldered onto the main PCB trying to work out if its an issue on the main board that shows up once connection is made to the riser or if its the riser itself that has the problem. The riser is a pain to solder in and out again so want to try to check it off the board as if thats possible?
2 resistors burnt out on the rise on the 50V trace.Leave a comment:
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Breadboard resistance
Hi I'm currently trying to repair a Kenwood KA-76 Amp I stupodly damaged and need to check a risser board to see If there is a problem with that.
This is a schematic of the board showing 50V but also 20V
If I put it into a breadboard to test what rate resistors would I need to use 10KOhm?
Cheers Bill... -
Hi Bill here in Manchsster UK.
Found this place via Learn electronics channel recommendation.
Turned 61 and decided I need to keep the brain active. So trying to fix amps and turntables
Wish me luck hahahaLeave a comment:
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The risser needs to be soldered its not a plug in
The fact im getting no reading from the emmiter resistors leads me to think there is an issue possibly with the bias pots. There also could be another issue with the riser but I am going to the start point which was the shorted emmitter at the output transistor. The output transistor actually reads OK but this could be a false reading....Leave a comment:
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Kenwood KA-76 issue
I am a newbie to electronics at 61 years old and working on a KA-76 where the output transistor that was accidently shorted took out other componants a driver transistor, 3 resistors at R41 and on the riser board R31 and R33.
These where replaced however when the riser board was reinstalled there is a short showing through the dim bulb and goes when board is removed.
I have tested DC Offset which seems Ok but testing bias at the emmiter resistors I get no readings suggesting another failed componant. As a newbie before I push ahead i'm asking what I should either remove...
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