I need a replacement remote for a cfd-S250 boombox, is there one available?

SOURCE: Play mode

Tape the play button down (better if you have a repeat button) I have done this and used a marble under the tape to simulate a thumb-like pressure imitation

SOURCE: How to preset a radio station on Sony CFD-S200 Cassette/CD boombox

You will need to use the Forward and Reverse buttons on the CD player. Set the station by holding the button you want to set it to until it blinks and shows the station number.
To set more that 10 stations. Press the (>10) button and then enter 11 or 12 or so on and set the stations the same as above.

SOURCE: power cord?

Hi

you an buy the item in electrical or electronics store

Thanks!

SOURCE: how do I preset radio stations?

PRESET RADIO STATIONS
1 press RADIO BAND. AUTO PRESET to select the band.
2 Hold down RADIO BAND > AUTO PRESET for 2 seconds until "AUTO"flashes in the display
3 Press DSPL/ENT/MEM. The stations are stored in the memory from the lower frequencies to the higher ones.

if a station can not be preset automatically.
you need to preset a station manually.
1 press RADIO BAND. AUTO PRESET to select the band.
2 tune int he station you want.
3 hold down DSPL/ENT/MEM. for 2 seconds until the preset number flashes in the display.
4 press PRESET + or - until the preset number you watn for the station flashes in the display.
5 press DSPL/ENT/MEM. The new station replaces any old one.

TIP the preset radio stations remain in memory even when all power is disconnected.

manual available at sony
http://www.docs.sony.com/release/CFDF10.pdf

SOURCE: I need a power cord

You can find one from this site
http://www.studiosoundelectronics.com/pwrcords.htm#pwrcords