If pin 5 is low, try checking C606 (10uF/4V tantalum). These can sometimes go short circuit.
Thanks for the update @rahul_unde . I'm glad to hear that it's working again.
Hi @rahul_unde and welcome to Stereo2go. I cannot talk you through a step by step fault finding, there are a few things which you need to check...
I have never tried it as I normally use an oscilloscope. You can try with the meter and try checking the right hand channel to see if there are...
Electrically, the EQ switching boards can be fitted either way round; they are symmetrical. The problem is that I cannot make them as small as the...
Who knows? They would have needed replacing anyway as the Sony potted modules often start to give problems after around 30 years.
Hi @Buckie1967 . PM sent.
I'm pleased to hear that replacing the EQ modules has solved the problem. This was an unusual fault. Normally when EQ modules fail, they cause...
Thanks for the update @-LV- . I'm glad to hear that it has fixed the speed issues. Pin 8 is the 6V B+ connection so the chip would not have...
The CX20084 is a 16 pin IC. The only pin which is not connected in a D6C is pin 6. There is a floating pad for pin 6 but it is not connected. If...
It may be worth checking C608. I had a SMD version D6C, which was running very slowly. C608, which should have been a 3.3uF tantalum, read 65uF...
A USB cord is likely to be a switch mode power supply. I have had at least 2 D6Cs in for repair which have had the CX20084 chips destroyed by...
As far as I am aware, cell phone chargers are switch mode type. I would not use one on a D6C or any other walkman with a CX20084 chip.
Hello and welcome to Stereo2go. You'll find plenty of like minded folk on here.
I have only ever used a tantalum so I don't know if using an electrolytic or film capacitor would affect it.
Another thing to check is C607, which is a tantalum 0.15uF / 35V capacitor. I have had one or two of those which have failed and they cause fast...
Hi and welcome to Stereo2go. Firstly, if you are using your D6C for the first time in many years, please don't make the mistake of plugging a...
If the FG coil is open circuit, it will run fast so I would address that first. The FG coil should show a DC resistance of around 620 Ohms. Check...
You should be getting a sinewave out from Pin 1 of the CP601, with a frequency of 1.08kHz when running at the correct speed. Check the FG coil...
I have noticed a couple of points on your photo. [ATTACH] There are a couple of bad solder joints which I can see. The screen of the single...
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