What is the resistance of R2?
The R2 resistor on my record player has burnt out and the colours on the resistor is unreadable, does anybody know the resistance of R2 for the CR8005AERP2-01A circuit board (Please see photo below). Thank you
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Hi Aaron
This truly is a really sticky situation isn’t it!
Did this just happen or was there something that caused it
Also do the other boards (if there are any) look ok?
I had a look online and I can’t find any schematics or any replacement parts which leaves you with 2 options
1)buy a new turntable or find another one do you can get a look at that resistor which is the safer option
Or
2) I don’t really recommend this option because it could further damage the device ,however it could work:you could take a gamble and use a resistor that has the same coloured bands as the other 2 that are still there
The resistors(4.7 kΩ ±5% (J)) that are there are these ones linked here:-)
https://www.ebay.co.uk/itm/362481875378?...
Both options could work so do what you thinks best:-)
Hopefully this helps
Any questions please ask
Thanks:-)
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Thank you for the reply!
When removing the old resistor from what I could make out was that it was different resistor to the other two (pink in colour compared to the other two which are the more typical tan colour). From digging around online I found the following image on reddit ( https://preview.redd.it/muipuid66kk21.jp... ), which is an older circuit board, with a 100 ohm resistor at R2, some of the other components are different but don’t know if a 100 ohm resistor would work on my board? Otherwise I think I’ll follow your advice of option 1.
Thanks again
@Aaron Mason
Using a resistor that has similar bands could be used aslong as they have most of them in common but this carries the same risks as the second option
If I were you I would go for the first option:-)
Also, do you know what caused this or did it just happen out of the blue?
Thanks:-)
Thanks again for the advise. I'll keep an eye out on eBay for a cheap one so I can look at the internals.
No idea what caused it, just one day the amplifier stopped working (everything else functions as normal), I'll let you know once it's fixed.
Thanks!
@Aaron Mason
Sounds like a plan:-)
Thanks:-)
I have a similar unit with resistor R2 burnt out. Looking at the PCB, R2 connects power from the DC input (via a diode and power/volume switch) to pin 2 of the Amp IC (TDA2822M). This is the power pin for the amp, hence a resistor doesn't make sense; I suspect this resistor is a 0 ohm for use as a jumper (the PCB is single sided). Otherwise a very low value. Important issue here is it appears that a the original resistor was undersized in terms of power rating, hence it burnt up. A higher power rating is recommended; at least 1/8th or 1/4th W. There is another example circuit using a 1 ohm resistor
