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Old 4th June 2009, 10:26 AM   #31
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Join Date: Apr 2009
To gychang:
SEE MY POST ABOVE
Hi! Forgot to mention that there is no space for the pot on the board, so you will have to mount it on the panel of the container you put Tripath PCB into.
PS If you have a pot with 4 pins at top and 4 below, the pins on left end would most likely have been used for a 'loudness' filter, and can be ignored. (Orientate pot as in pic above).
To Mattcalf:
The output from the preamp connects to the R GND L input on the Tripath - the smaller white female connector socket.
This
"[R-source][R-amp][GND]
[R-source][L-amp][GND]"
in post #29
should, of course be:

[R-source][R-amp][GND]
[L-source][L-amp][GND]

Kind Regards, Tony Swaine
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Old 9th June 2009, 12:07 PM   #32
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Default Volume control

The new MKIII board has space for a small sized potmeter, just one size smaller then the usual, but not many people use it sice you'd want to have the potmeter on the front plate of the housing anyway.

if there's any trouble connecting then post it, ill try to answer!

im really busy these days so it might take 2 days...

Greetings,

Arjen
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Old 17th June 2009, 02:10 AM   #33
gychang is offline gychang  United States
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Join Date: Feb 2005
Location: Davis, California
Default Arjen: input selector connection?

I received the MKIII Tripath TA2020 PCB 25watt Class-T amplifier SET today from you. Looks to be hiqh quality, carefully packaged but have not yet connected for testing.

Previous discussions gives me clear idea on how to hookup pot, but my question is regarding the input selector switch. Is there an easy to follow instruction somewhere? (I also sent u an email). May be this is a better format so others who order the unit can see.

gychang
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Old 18th June 2009, 01:18 AM   #34
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Default Selector switch

Hi there,

Connecting the selector switch is eazy when observing the switch carefully,

The inner pins, 3 Pcs, are your output, they go to the volume potmeter and then to the amplifier.

the outer pins are the input pins.

Now if you turn the knob all the way counter clockwise, you can see there are 3 lips inside the switch, touching the pins on the outside. now you can connect the wires to the pins that touch that lip, click the switch further one notch and start with the next channel, one notch further and solder the third channel, and then your done!

ill make a photo of mine later and post it.

GReetings,

Arjen Helder
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Old 18th June 2009, 11:29 AM   #35
gychang is offline gychang  United States
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Join Date: Feb 2005
Location: Davis, California
Default Re: Selector switch

Quote:
Originally posted by ArjenShenzhen
Hi there,

Connecting the selector switch is eazy when observing the switch carefully,

The inner pins, 3 Pcs, are your output, they go to the volume potmeter and then to the amplifier.

the outer pins are the input pins.

Now if you turn the knob all the way counter clockwise, you can see there are 3 lips inside the switch, touching the pins on the outside. now you can connect the wires to the pins that touch that lip, click the switch further one notch and start with the next channel, one notch further and solder the third channel, and then your done!

ill make a photo of mine later and post it.

GReetings,

Arjen Helder
Thanks, I have the general idea, will wait for the picture.

gychang
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Old 20th June 2009, 03:37 PM   #36
ahio is offline ahio  Italy
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Join Date: Jun 2009
Quote:
Originally posted by glt
ArjenShenzhen

Do the caps have to be close to the input circuitry? Otherwise you can short all the caps and add them at the input wires. Thanks.

hi i buy your 6 channel pcb but I've a problem with the connection to 220V and the 2,2 capacitors included in the kit,you can send me a pdf manual? tnx
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Old 25th June 2009, 11:55 AM   #37
ahio is offline ahio  Italy
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hi ArjenShenzhen and all users on this 3d, I got a 6 your channel pcb and now it's work great, but on pdf file i don't understand where is the capacitors which must change to obtain the full range frequency or improved the bass( the replace cap value are 2.2 mF) tnx to all
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Old 29th June 2009, 11:40 AM   #38
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My board and PSU arrived today, will post later down the trackwhen i get it working. (When my wrist isn't broken ).
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Old 30th June 2009, 01:35 PM   #39
ahio is offline ahio  Italy
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Quote:
Originally posted by mattcalf
My board and PSU arrived today, will post later down the trackwhen i get it working. (When my wrist isn't broken ).
great! i'm waiting your photo!
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Old 2nd July 2009, 05:33 PM   #40
gychang is offline gychang  United States
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Join Date: Feb 2005
Location: Davis, California
Quote:
Originally posted by twinney12
Arjen I am stunned and amazed at the power and quality of this tiny amp - the size of a fag packet!
I am running the amp (12V 2A DC supply) into 2x physically large 8 Ohm speakers, but without the pot, the volume was too high for comfort; but now it's exquisite!

Many thanks, Tony Swaine

Tony does the included power switch illuminated?, does it contain a small LED?

gychang
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