BenBau
Head-Fier
- Joined
- Jul 11, 2009
- Posts
- 53
- Likes
- 10
Well, there actually IS a dedicated pin for the input relay switching. It's on pin 4 of the DB9 and is called DA3 (according to Kingwa). I measured it from the control panel (with the blue display) to the amp-box and it's intact and not shorted to ground. Now the strangest thing: I turned on the Phoenix but I forgot to connect the serial cable. I connected the serial cable without turning off the Phoenix. The input relays are clicking again, but only inputs 1, 2 and 3 (is that normal?). The volume is a bit louder, but still too soft and still the same on all inputs (=signal leakage). Another thing: on inputs 1 and 2 the volume relays keep clicking if I keep turning the knob "under 0" or "over 70".
There has to be something wrong with the control panel. The primary problem was the broken voltage regulator with 7V on the right-side output. I soldiered in a new one provided by Kingwa. The voltages are fixed now. Somehow the control panel must have gotten "messed up" or maybe also a short-circuit. It's just not logical that there's a fault in the amp box, it must be in the power box.
Les, I know of the oil issue in the encoders. That's not the issue here. I use the remote for control.
Pricklely, I don't think there a problem with the relay banks under the circuit board in the amp box. There IS control of volume and I hear the volume relays clicking, but the max. volume is far too low. The input relays are also clicking, but not the way they should i.e. connecting the input signal to the amp circuit. The preamp button is properly working: my balanced connected C1 Masters produce unfortunately also too soft sound in preamp mode.
The biggest part of "free floating" cast-aluminium from the power connector was 5mm! Also a lot of smaller debris inside the power box. "Clean working" or better, the lack of it, really is an issue Kingwa has to fix (still); it's high-end unworthy!
There has to be something wrong with the control panel. The primary problem was the broken voltage regulator with 7V on the right-side output. I soldiered in a new one provided by Kingwa. The voltages are fixed now. Somehow the control panel must have gotten "messed up" or maybe also a short-circuit. It's just not logical that there's a fault in the amp box, it must be in the power box.
Les, I know of the oil issue in the encoders. That's not the issue here. I use the remote for control.
Pricklely, I don't think there a problem with the relay banks under the circuit board in the amp box. There IS control of volume and I hear the volume relays clicking, but the max. volume is far too low. The input relays are also clicking, but not the way they should i.e. connecting the input signal to the amp circuit. The preamp button is properly working: my balanced connected C1 Masters produce unfortunately also too soft sound in preamp mode.
The biggest part of "free floating" cast-aluminium from the power connector was 5mm! Also a lot of smaller debris inside the power box. "Clean working" or better, the lack of it, really is an issue Kingwa has to fix (still); it's high-end unworthy!