Leaderboard

Not strange, normal, there is a MDM-2 inside this unit guys. So laser power is manually adjusted with a potentiometer (RV) on the BD board, no chance to adjust it with the service menu. If the lens is already cleaned (first basic thing to do), simply make this test : Power off/on the unit. Put your JA3ES on the side. Insert a well-working recorded MD and play it. If the readability is clearly better (quick track access, no OPU bizarre noises, no dropouts on music), great you win a worn-out KMS-210A OPU classic symptom. Search the web. That will not tell you if the disc a well played in back-end. Go into service mode and do a CPLAY mode test (IN, MID and OUT) with a full well-working recorded MD, it will give you live C1 error value between 0 and 7350. Observe values for 10 seconds in the 3 zones/areas (INSIDE, MIDDLE and OUTSIDE) and made an average. Now power off/on the unit and do the same thing with your JA3ES on the side. Same, observe values for 10 seconds and made an average. With the comparison, deduce.

To the best of my knowledge the only differences between the Sharp SR40, SR50, SR75 was in the items that came with it and the colours. Some came with a rechargeable battery, some didn't, some came with a remote and some didn't. Sharp were in the habit of doing this, same thing applies to the MT range. So for service or operation purposes manuals for either SR50 or SR75 should suffice. The higher the number (40/50/75) the more you got with it and obviously the higher the price. I'm therefore guessing the SR40 was the budget model and didn't come with either rechargeable battery or a remote, although it will probably still have the required socket, as the remotes were available as an optional extra. I still have an absolutely pristine, complete and boxed SR50. I used to have an SR75 but unfortunately that gave up the ghost a few years ago. Hope it works for you when it arrives.