If it's that long thin type, you're not going to find a replacement in the same footprint. Solution is to replace with SMD tantalum instead....
Part 121 looks like a shim to adjust erase head height or a cable holder. Would assume you didn't remove the erase head, so your washer is likely...
Hello and welcome to the forum, @Sonny Foster ! Always nice to see people into vintage electronics restorations, especially walkmans. Feel free...
First thing I would check are the output coupling capacitors C118/C218, this symptom is typical of coupling caps that have very high impedance....
Fact you need to turn the trimpots close to the max setting to get the desired value indicates something is wrong. There are a couple of things...
Keep in mind that brown thing on the transformer is glue, not damage. T1 is part of a DC-DC converter circuit (+7.8V) that powers the servo PLL....
Yes the bushings are replaceable, but I highly doubt there are many who actually have the right tools to replace them. Not to mention the spare...
W&F obtainable on these units will depend a lot on capstan bearing wear and can vary anywhere between 0.15% WRMS (a best case scenario) to 0.30%...
Ok, so connect the + side of the head coils input to the COM. But make sure you only use the unit in PLAY this way, not record, as in record...
Hello and welcome to the forum, @TheLagster30 ! Glad to see a skilled technician joining the forum. There are a few of us here that do repairs...
Power amps can be 32W RMS given they're class D, but there's also the question if the power supply can provide enough current for a 32W output....
Is that hum also present with the head disconnected ? Caps are unlikely to be the issue, since the ripple filter of both preamp and headphone amp...
SONY WM-DD9 Many of these units will be sold as working. However there are quite a few maintenance items that need to be done even if the unit is...
A video would be helpful, not sure I understood correctly what the actual problem is. Is the motor not spinning at all ? Or it turns but the...
That stamp with date I think is factory. Seen it on other DDs in a similar location, but also some have a very similar one on pulleys or...
That part goes on the REV flywheel bracket, see picture attached.
Indeed SONY never made any Direct Drive walkmans, all SONYs labeled DD are Disc Drive. There are only 2 Panasonic models that were truly direct...
Sounds like flutter to me. Have you measured the W&F figure with WFGUI ? Does the same problem occur when speed tune is turned on (PLL...
Never needed to replace any capacitor on these models, but there is always a possibility of some caps failing. Generally speaking, high W&F is...
My mistake I didn't pay attention, now I realise there are 2 gears and 2 retainers in the kit. So this is all that's needed for the repair....
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