Yes, there will be 2 display, that's problem for 8 channel xlr use, because the boards can not 'talk' to each other by now.
so... instead if i use for 5.1....3 VC23 --> Préamplification - AUDIOPHONICS PGAVOL - Contrôleur de volume 4 entrées PGA2310
for 6in/6out with possible of selectable 4 different 5.1 source...so how can i bridge the input 1..4 of each boards and use only one display/knob board and remote for drive all 3 boards?
for 6in/6out with possible of selectable 4 different 5.1 source...so how can i bridge the input 1..4 of each boards and use only one display/knob board and remote for drive all 3 boards?
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Hi, I also have a VC23 bought from audiophonics.. it works fine but I'd like to know if it's possible to set the maximum gain = 0db.. I mean, to keep on using the input opamp as a gain stage, and use the PGA just as attenuator... this function was described on the site, by setting the dip-switch.. but it seems not work
! Please help thanx Hi, I also have a VC23 bought from audiophonics.. it works fine but I'd like to know if it's possible to set the maximum gain = 0db.. I mean, to keep on using the input opamp as a gain stage, and use the PGA just as attenuator... this function was described on the site, by setting the dip-switch.. but it seems not work
Hi, sorry but VC23 doesn't support 0dB maximum function.
The configuration of switches:
1: Auto save settings
2: Display on/auto off
3: Remote learning mode
4: Control port output level
ok thank You.. could You explain what mean for 'Control port output level' ?
if on or off what happens ? Changes in gain or something ?Re: Post #55 on Page 6 of this thread: 1) Can you tell me how to use the VC23 to turn on the T1 amp? 2) How do I use the Remote Learning Mode SW3 and the 111/222/333 codes? If I use the remote on the TV it changes the volume in +5dB increments, even the volume down, so pretty soon the amp was at 100%. Thank you in advance.
Hi, "Control port" is CN9 on VC23. And here is the sw4's purpose:ok thank You.. could You explain what mean for 'Control port output level' ?
on-amplifier control port active high level(3.3V TTL logic output);
off-amplifier control port active low(3.3V logic output)
Hi, I think you can use a relay to power on/off the AC power supply (220V/110V). When we put sw3 on, and VC23 will enter learning mode when power on, use a remote and press keys to learn the code. Operating sequence: 000-ON/OFF, 111-MUTE, 222-Volume down, 333-Volume UP, 444-Channel down, 555-Channel up, 666-learning end, then repeat for another cycle if needed.
The volume will auto increase when you long press the remote. May be that's why you get 5dB step?
Working now!
When I set DIP 3 to ON, shut down and restarted it wouldn't come back on. Turns out my power switch was bad. Fixed that and it is all good now, programming was a breeze. Good idea on the relay, I will do that.
See attached for latest box configuration.
Thanks!!!
Eric
When I set DIP 3 to ON, shut down and restarted it wouldn't come back on. Turns out my power switch was bad. Fixed that and it is all good now, programming was a breeze. Good idea on the relay, I will do that.
See attached for latest box configuration.
Thanks!!!
Eric
Attachments
I want to buy this Préamplification - AUDIOPHONICS PGA-8CH - Contrôleur de volume 8 entrées PGA4311 --> VC43
How much VA need a VC43 board? I want to use a toroidal transf 2x09V + 1x06V.... how much Amp is need for each lines? IS good 2x09V or is best 2x06v?
Thanks.
How much VA need a VC43 board? I want to use a toroidal transf 2x09V + 1x06V.... how much Amp is need for each lines? IS good 2x09V or is best 2x06v?
Thanks.
hi, PGA4311 is +/-5V supply for analog, so 2x6V is better to get lower power loss. A transformer about 9VA is ok for VC43.
Hi hifimediy, vc23 is sounding great, really silent (no floor noise or humm) on my speakers until maximum gain ... but just a question.. when I start to go high in level let's say from -5 dB up to max. I hear some clicks every time I increase or decrease level. This happen ONLY if I do that without input source connected. If I short input to GND or have a source signal on that channel, this doesn't happen.. could be a problem depending on too high input impedance (30kohm in my board).. ?
... but just a question.. when I start to go high in level let's say from -5 dB up to max. I hear some clicks every time I increase or decrease level. This happen ONLY if I do that without input source connected. If I short input to GND or have a source signal on that channel, this doesn't happen.. could be a problem depending on too high input impedance (30kohm in my board).. ?TV Remote Interference with VC23
Was able to program the remote to control the VC23 with channel and volume with the cable box remote, but still problems. Whenever a button is pressed on the cable box remote when in CABLE mode, either channel up/down, List, back, play, etc it has a bad effect on the VC23 - usually raising volume, even though the "audio" function is not enabled. Here is the remote: Atlas OCAP 1056B03:
Atlas OCAP DVR Setup Television Control (1056-BC03)
Is there a fix or work-around for this? I may have to move the VC23 and amp to a different room as it can't be on at the same time the TV is on, but I really wanted to use the VC23 and amp for better TV sound.....
Thanks in advance.
Eric
Was able to program the remote to control the VC23 with channel and volume with the cable box remote, but still problems.
Whenever a button is pressed on the cable box remote when in CABLE mode, either channel up/down, List, back, play, etc it has a bad effect on the VC23 - usually raising volume, even though the "audio" function is not enabled. Here is the remote: Atlas OCAP 1056B03:Atlas OCAP DVR Setup Television Control (1056-BC03)
Is there a fix or work-around for this? I may have to move the VC23 and amp to a different room as it can't be on at the same time the TV is on, but I really wanted to use the VC23 and amp for better TV sound.....
Thanks in advance.
Eric
Hi hifimediy, vc23 is sounding great, really silent (no floor noise or humm) on my speakers until maximum gain
Look's typical of small DC present in the signal flow, if it's the case then adding a cap in between will help
JC
True.. the click was an offset problem.. I adjusted the offset trimmer to have 0.0 mV on pin 6 of the op amp and the pops are gone..
thank You.. Now it works really greatCan anyone who have bought VC43 from Audiophonics share his experience?
In particular I've two questions:
- when the module is switched on or off is there any noise (bump)?
- I've read in some french forum that VC23 was sensitive to light bulbs in the room and remote controls used in other rooms; has VC43 the same flaw?
Thanks
Fabrizio
In particular I've two questions:
- when the module is switched on or off is there any noise (bump)?
- I've read in some french forum that VC23 was sensitive to light bulbs in the room and remote controls used in other rooms; has VC43 the same flaw?
Thanks
Fabrizio
ok.. I understand.. but another question... is it possible to modify MSP430F149 internal parameters in order just to modify GAIN LIMITS (-70dB to +3dB) of VC23 ? I mean... connect the MSP430 UART R/T of the hader on board via UART-USB adaptor to PC ? Because I'm not so expert on MCU programming.. which software should I use to do that ? Is it a difficult operation to do ?
Thank You..
Thank You..
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