Altronics K 5171 Manual - Page 10

Browse online or download pdf Manual for Amplifier Altronics K 5171. Altronics K 5171 10 pages. Ultra low distortion preamplifier with tone controls

Print Page

K 5171

Selecting The Mode and

Programming The Remote

As stated in the text, it's necessary to

program the universal remote control

correctly. By default, the microcontroller's

RC5 code is set to TV but SAT1 or SAT2

can also be selected. Just press and

hold button S1 on the pushbutton board

during power-up for SAT1 or button S2 for

SAT2. Pressing S3 at power-up reverts to

TV mode. Once you've chosen the mode

or "device", the correct code must be

programmed into the remote. This in-

volves selecting TV, SAT1 or SAT2 on the

remote (to agree with the microcontroller

set-up) and then programming in a three

or 4-digit number for a Philips device.

That's because most Philips devices (but

not all) use the RC5 code standard that's

expected by the Preamplifier.

Most universal remote controls can be

used, including the model shown above,

the Altronics A1012 ($29.95). For the

Altronics A1012, use a code of 023 or

089 for TV mode, 242 for SAT1 or 245

for SAT2. In the case of other universal

remotes, it's just a matter of testing the

various codes until you find one that

works. There are usually no more than 15

codes (and usually fewer) listed for each

Philips device, so it shouldn't take long to

find the correct one.

Note that some codes may only partially

work, eg, they might control the volume

but not the input selection. In that case,

try a different code. Also, some remotes

may only work in one mode (eg, TV but

not SAT). A variety of infrared remote

controls can be used to control the

preamplifier: the one photographed came

from Altronics.

CONNECT

PC BOARD

M4 FLAT

WASHER

M4 x 10mm

SCREW & NUT

Fig.16: here's how the male spade quick

connectors are secured to the power supply

PCB. Vertical spade terminals with solderable

pins can also be used.

1 -WAY

IDC

SOCKET

14-WAY

IDC

SOCKET

Making the interconnecting cables

To connect the input selector boards, you need to make two IDC cables. These diagrams show

how these cables are made.

Pin 1 on the header sockets is indicated by a small triangle in the plastic moulding and the red

stripe of the cable must always go to these pins.

You can either crimp the IDC headers to the cable in a vice or use an IDC crimping tool (eg,

Altronics T1540).

Don't forget to fit the locking bars to the headers after crimping, to secure the cable in place.

Having completed the cables, it's a good idea to check that they have been correctly terminated.

The best way to do this is to plug them into the matching sockets on the PCB assemblies and

then check for continuity between the corresponding pins at either end using a multimeter.

Important Note:

Please note that we can

offer a warranty only on

the components supplied

with this kit. Because we

are unable to guarantee

your labour, there is no

warranty on either partially

or fully built kits. We are

able to offer a repair service,

but once construction has

commenced, this service is

chargeable.

QUICK

M4 STAR

WASHER

ULTRA LOW DISTORTION PREAMPLIFIER WITH TONE CONTROLS

LOCATING

SPIGOT

UNDER

200mm x 0-WAY IDC RIBBON CABLE

LOCATING

SPIGOT

UNDER

300mm x

-WAY IDC RIBBON CABLE

CABLE EDGE STRIPE

Dear Kit Constructor,

At Altronics we take great pride in the quality and

presentation of our kits. If you find any deficiency in

this kit or have any constructive comments whatso-

ever, please write to us.

Altronics

Attention: The Kit Manager

P.O. Box 8350,

Perth Business Centre

W.A. 6849

or email

[email protected]

1 -WAY

IDC

SOCKET

14-WAY

IDC

SOCKET