This is the original battery case for SONY D35. You can find it by googling "SONY D35".

80 55 r7 uses a huge lead acid battery, doesn't support AA, 77 has a slim lead acid battery built inside of the player. 81 90 92 are the players supporting AA batteries.

Try replace the motor assembly.

Yes, pls contact me by yixingu76201@gmail.com

My system said your email address is not supported but I saw you have successfully registered? If there's anything wrong pls try with another email address. Thx!

If I were you, I'll find another working CD10 to confirm whether it's a laser issue by exchanging their lasers. The model of the laser is CDM2-P. You can also get a working CDM-2/10 to test the motherboard. Ordinary the motherboard doesn't have too many issues but spindle motor drive circuit...

Are you sure you replaced exactly same voltage and capacity caps with the original caps? None reverse polar by mistake? Did you throughly clean the PCB? Did you check the red laser beam from optical head? If no laser, pls check whether anything wrong with the flexible cable. If you couldn't...

Thank you Chadbang! It's really not difficult. If you can spend some time on it, you can do it as well as I did. For any questions regarding vintage portable CD players, pls contact me by yixingu76201@gmail.com

Digital output are available on SONY D555, D303, Kenwood dpc92 and Denon dcp150.

Most likely it's caused by mechanical parts. Disassemble it and check it, a well lubrication on gears will help. Otherwise send it to me, it'll come back to life again for sure.

Yes, battery solutions are available here in Denton TX. Both bp2ex and bp100/200 can be repaired. For detail, pls contact me by yixingu76201@gmail.com

If you accidentally used a wrong power adapter, its CPU broken. Otherwise full screen on can be caused by a reset failure. Both issues can be handled here in Denton TX.

All SMT caps need to be replaced, not only three. Also the leaking areas should be cleaned one by one. 80% D211 can e repaired by these steps, 20% need further circuit repair.

Yes, try to replace all aging SMD capacitors and test again. If it still doesn't work, you need a circuit inspection.

It seems you like the Denon 50/150, right? I think the D555 has improvement space for its earphone amplifier. The original earphone amplifier is CXA1623 which has 9mw*2 output. The output power is too small comparing to D50/100 especially when you turn on Bass or increase volume, so it's...

Yep! You got excellent idea! Thank you sooooooo much!

pls visit www.kaosuncd.com for more information!

pls visit www.kaosuncd.com for more information!

You'd better never modify these VRs since you lack of enough experience to improve them. As you mentioned the CDR worse, I believe you need a oscilloscope to precisely adjust the 5-parameter. Or you can increase the laser a little bit until the reading noise gone.

I guess it's a simple mechanical lubrication issue. Disassemble it and add some grease on the mechanical moving parts to see whether everything goes fine?

Can you say something about the comparison? I couldn't tell too much difference between D35 and DCP50/150....

Your problem is caused by a worn spindle motor. Well lubricating both ends bearings will reduce the skipping even handle your issue if the spindle does wear too much. The final solution is replacing it. The model RF300c with similar length of the shaft can replace the original one. Be sure to...

One fan bought a modified DCP50 from me and mentioned it's fantastic. But I need someone to compare it with D555...   Who will be interested in? I have one on ebay. LOL : )

Oh, thank you ASPEN00! I'm still have some modified BP-2EX on ebay. Contact me and I'll send you 2 for your cd players.

The problem is most likely caused by laser. Model is KSS110 which is the first version for portable CD players. It has 50% chance to be repaired if you'd like to try.