New/upgraded TC-7520 power supply?

[leo]

Well you can try it, its easy to put back in if you prefer it with the cap
The output of the bench supply is probably well filtered

[StanleyB]

Bypassing the power supply in that fashion could take out the input selector IC, the LEDs IC, and the headphone IC on the TC-7510. They are rated at 12V.

Stan

[leo]

Ah, so the 7510 is different to the 7520 in this case?

Just proves you should wait until the designer comments before trying anything like this

If its not recommended to go higher than 12v input to the TC-7510 and Chrism is determined to try the Maplin job its probably best to adjust the output voltage which shouldn't be too hard

Or easier still leave it all as is

[StanleyB]

Ah, so the 7510 is different to the 7520 in this case?

Something that I have been saying all along.

[leo]

Something that I have been saying all along.

Bit of Ground Hog day

[dikyllis]

i notice, my SLA battery drain off even though the dac is off

anybody?

[StanleyB]

The DAC is in standby mode when the power LED is off.

[Stratmangler]

The DAC is in standby mode when the power LED is off.

Same with the TC-7510 too ?

Chris

[lovejoy]

Batteries will naturally lose their charge over time. IME a sealed lead acid battery should never be left for longer than a couple of months without a full charge and never deeply discharged in use. If you're using one for a DAC then best to have a trickle charger to hand that can gently top it back up when it's not being used.

[StanleyB]

Same with the TC-7510 too ?

Chris

Yep. It's my secret 'operational temperature maintenance circuit' that needs the trickle juice so that the DAC doesn't need too long to warm up.