My recent efforts to restore Aiwa TP-S30 failed miserably! Before giving up on Aiwa Walkmans I decided to check if Aiwa later models are as difficult as their first one. HS-P202 MkIII looks beautiful and has decent specs, perfect candidate for restoration.
The first pleasant surprise is that MkIII model does not have any of those horrid Aiwa PB-1 batteries, it runs off 2V AC/DC adapter or two AAA batteries in the add-on “gondola”. There is NO battery inside the Walkman itself!!! This is a mystery to me: full-metal Walkman with flimsy plastic battery holder without which this model cannot be portable. What were AIWA designers thinking (or rather drinking)?!?
Even knowing about this clip, I would suggest opening the bottom inside a plastic bag: tiny knobs for the slide-switches (DSL, Dolby, CrO2) are eager to fly! its a Miracle I found them all!
Fortunately, surface-mount 330uF/6.3V Panasonic caps fit nicely, after this modification:
Original belt still feels solid, I just gave it a thorough cleaning. New belt (bought from Marian) was saved for later:
Revived Aiwa sounds crisp and strong (15mW into 32 Ohm x2 is very-very good!!), measures better than anyone would expect from a non-DD Walkman:
W&F at 0.15%, speed adjusted at 0.0% to +0.2% too fast, the way I like it. Lower-end Rega turntables also adjusted at 0.25% extra speed.
Its only at this point I realized that there is something wrong with my Aiwa. It has Stop/Eject button, also a hook, but there was no latch on the lid to make use of this feature. The leaf spring was flattened by the previous owner so that lid stayed close even without a latch.
AIWA HS-P202 MkIII in all its beauty: