i came across of a broken Technics RS-DC8, changed the gears (one was broken), pinch rollers, the belt, capacitors on RW board (locally didn’t found 6,3V and 10V, so i replaced them with 16V same value) but still not working.
all the mechanical parts seems to work OK (open, close, start, stop, head is turning from side A to B,..)
the problem is with audio
analog cassettes work OK
DCC casette
side A plays recorded cassettes with some dropouts
sibe B doesn’t play almost nothing
recoding seems that it doesn record anything on side A and B, but seems that it writes track marks
will try to test the head in service mode as soon as i get new batch of capacitors. the ones i used had too thick leads so i had to solder them on the upped side instead of through hole. So i already removed them and done a better cleaning of the RW board.
Pinch rollers are new. Mayble will try to interchange them, to see if the is any difference
i will check the possibility of cleaning also the pivot mechanism.
Made s second recap, i also checked the traces here and found out that two traces on PCB were damaged, so corrected them. Now both sides sounds OK.
in the end had also to adjust VR14 (with the help of E1 error counter, as I don’t have an osciloscope and DCC characteristics tape), as the tapes recorded in the past with this unit had a very low error count, but the tape i recorded after recap had 2000 and more errors (i thought it was a recording problem, but after putting the tape into my DCC600 it sounded OK). now all the tapes sounds OK with E1 error count around 20.
Well worth the effort for the low price i got this unit