Concert Fidelity DAC-040 owners, pls., help!

contact us: biz-info(at)concertfidelity.jp

You probably will have better luck with the address above ☝️

I had try, but receive an instruction for later version of the DAC. No customer supports.

Unfortunately, they have no contacts with CF now.

I am talking about jumpers on charging board inside the DAC. Picture attached.

Well. Battery is not recharging automatically. Because I have standard V 1.0 model with BD upgrade. Only manual charging. It is turn of when battery is empty. Recharging is around 2-3 hour. Working about 8 hours. Every time I switch DAC on I need to charge battery, doesn't matter how long it work before. Battery is OK (I have two). Problem is in charging module KB7186A-401.

My CF have external charger, that supply KB7186A. The later rule of the charging process of the battery. We can not bypass KB7186A, or we need schematic of this module to bypass it. Or we need any info from owners of such unit, that can explain how it works.