Velleman High-Q Velleman-kit K8022 User manual

ILLUSTRATED ASSEMBLY MANUAL H8022IP-2
Total solder points: 220+ 65
Difficulty level:
beginner 1o2o3o4þ5oadvanced
K8022
Passive Preamp with RF remote control
þTwo stereo line level RCA inputs
þOne stereo RCA output to power amp
þMotor controlled volume control
þRF remote control for all functions.
þThe remote does not need to ‘see’ the
receiver
þSelf-learning code
þRange : up to 15m/yards depending
on environment.
þManual operation possible
þGold plated RCA connectors
þRelay controlled input section
þTotally passive
Specifications :
Preamp :
ŸInputs :..................................................2 (line level)
ŸOutputs :...............................................1 (line level)
ŸInput impedance :.......................................5K ohm
ŸOutput impedance :..................................2.5K ohm
ŸVolume control speed :.15s typ. (0 to max. volume)
ŸDimensions :.....235x165x47mm (9,5” x 6,7” x 1,9”)
ŸPower supply :............................... 12VDC / 300mA
Remote Control :
Ÿ433MHz operation
ŸApproved design (report BLC/96-0452 according to
I-ETS 300 220)
ŸKeychain-style
ŸBattery (not included) :12V type V23GA, GP23A, ...
ŸDimensions :........39x15x57mm (1,57” x 0,6” x 2,3”)

2
Assembly hints
1. Assembly (Skipping this can lead to troubles ! )
Ok, so we have your attention. These hints will help you to make this project
successful. Read them carefully.
1.1 Make sure you have the right tools:
•A good quality soldering iron (25-40W) with a
small tip.
•Wipe it often on a wet sponge or cloth, to keep it clean; then apply solder to
the tip, to give it a wet look. This is called ‘thinning’ and will protect the tip,
and enables you to make good connections. When solder
rolls off the tip, it needs cleaning.
•Thin raisin-core solder. Do not use any flux or grease.
•A diagonal cutter to trim excess wires. To avoid injury when cutting
excess leads, hold the lead so they cannot fly towards the eyes.
•Needle nose pliers, for bending leads, or to hold compo-
nents in place.
•Small blade and phillips screwdrivers. A basic range
is fine.
For some projects, a basic multi-meter is required, or might
be handy
1.2 Assembly Hints :
⇒Make sure the skill level matches your experience, to avoid disappointments.
⇒Follow the instructions carefully. Read and understand the entire step before
you perform each operation.
⇒Perform the assembly in the correct order as stated in this manual
⇒Position all parts on the PCB (Printed Circuit Board) as shown on the draw-
ings.
⇒Values on the circuit diagram are subject to changes.
⇒Values in this assembly guide are correct*
⇒Use the check-boxes to mark your progress.
⇒Please read the included information on safety and customer service
* Typographical inaccuracies excluded. Always look for possible last minute
manual updates, indicated as ‘NOTE’ on a separate leaflet.
0.000

3
Assembly hints
1.3 Soldering Hints :
1-Mount the component against the PCB surface
and carefully solder the leads
2-Make sure the solderjoints are cone-shaped
and shiny
3-Trim excess leads as close as possible to the sol-
der joint
REMOVE THEM FROM THE TAPE ONE AT A
TIME !
Velleman hereby certifies that the device K8022 meets
the essential requirements and all other relevant stipulations of directive 1999/5/
EG and 1995/5/EC.
For the complete conformity declaration check out :
http://www.velleman.be/downloads/doC/CE_K8022.pdf
AXIAL COMPONENTS ARE TAPED IN
THE CORRECT MOUNTING SEQUENCE !

4
Color code table
IPESF SDK NDGB FNL C O D E
CODICE
COLORE CODIGO
DE
CORES
CODIGO
DE
COLORE
S
VÄRI
KOODI FÄRG
SCHEMA FARVE-
KODE FARGE-
KODE FARB
KODE COLOUR
CODE CODIFI-
CATION DES COU- LEURS
KLEUR
KODE C
O D E
0Nero Preto Negro Musta Svart Sort Sort Schwarz Black Noir Zwart 0 1Marrone Castanho Marrón Ruskea Brun Brun Brun Braun Brown Brun Bruin 1 2Rosso Encar-
nado Rojo Punainen Röd Rød Rød Rot Red Rouge Rood 2
3Aran-
ciato Laranja Naran-
jado Oranssi Orange Orange Orange Orange Orange Orange Oranje 3
4Giallo Amarelo Amarillo Keltainen Gul Gul Gul Gelb Yellow Jaune Geel 4 5Verde Verde Verde Vihreä Grön Grøn Grønn Grün Green Vert Groen 5 6Blu Azul Azul Sininen Blå Blå Blå Blau Blue Bleu Blauw 6 7Viola Violeta Morado Purppura Lila Violet Violet Violet Purple Violet Paars 7 8Grigio Cinzento Gris Harmaa Grå Grå Grå Grau Grey Gris Grijs 8 9Bianco Branco Blanco Valkoinen Vit Hvid Hvidt Weiss White Blanc Wit 9 AArgento Prateado Plata Hopea Silver Sølv Sølv Silber Silver Argent Zilver A BOro Dourado Oro Kulta Guld Guld Guldl Gold Gold Or Goud B
5%
4K7= ( 4 - 7 - 2 - B )
1%
4K7= ( 4 - 7 - 0 - 1 - 1 )
COLOR= 2… 5

5
Construction
The construction of this kit consists of two parts :
•The assembly of the passive preamp.
•The assembly of the RF remote control unit.
This manual only deals with the assembly and testing of the passive preamp.
Please refer to the supplied RF remote control manuals for details on the as-
sembly and configuration of the RF remote control unit.
IMPORTANT
qR1: 10 (1-0-0)
qR2: 1K (1-0-2)
qR3: 1K (1-0-2)
qR4: 1K (1-0-2)
qR5: 10K (1-0-3)
qR6: 10K (1-0-3)
qR7: 10K (1-0-3)
qR8: 10K (1-0-3)
qR9: 270 (2-7-1)
qR10: 18K (1-8-3)
qR11: 33K (3-3-3)
qR12: 5K6 (5-6-2)
qR13: 2K7 (2-7-2)
qR14: 18K (1-8-3)
qR15: 6K8 (6-8-2)
qR16: 6M8 (6-8-5)
qR17: 1K (1-0-2)
qR18: 1K (1-0-2)
qR19: 2K2 (2-2-2)
qR20: 10K (1-0-3)
qR21: 1 (1-0-B)
qR22: 470 (4-7-1)
2. Resistors (check the color code)
R...
qJ1
qJ2
1. Jumperwires
qD1 : 1N4007
qD2 : 1N4007
qD3 : 1N4007
qD4 : 1N4007
qD5 : 1N4007
qD6 : 1N4007
qD7 : 1N4148
3. DIODES (Check the polarity)
CATHODE
D...
qZD1 : 4V3
qZD2 : 5V1
4. Zener diodes
(Check the polarity)
CATHODE
ZD...
qL2 : 1µH (1-0-B)
5. Axial coil
L2

6
Construction
qIC1 : 8p
qIC2 : 8p
6. IC socket
(Watch the position of the notch)
qC2 : 100n (104)
qC3 : 100n (104)
qC5 : 100n (104)
qC6 : 100n (104)
qC9 : 100n (104)
qC10 : 100n (104)
qC11 : 82p (82)
qC12 : 22p (22)
qC13 : 330p (331)
qC14 : 1p (1)
qC15 : 3p3 (3.3)
qC16 : 330p (331)
qC17 : 2p2 (2.2)
7. Capacitors
C...
qT1 : BC547C
qT2 : BC547C
qT3 : BC557C
qT4 : BC557C
qT5 : BF199
qT6 : BC547C
8. Transistors
qSW1: TS-04PV
qSW2: TS-04PV
9. Push buttons. Mount them
straight against the PCB surface !
qSK1 : DJ-005
10. Adaptor jack. Mount it straight
against the PCB surface !
-
+
SW
J...
qSK2: MJ-523AG/B BLACK
qSK3: MJ-523AG/R RED
qSK4: MJ-523AG/B BLACK
qSK5: MJ-523AG/R RED
qSK6: MJ-523AG/B BLACK
qSK7: MJ-523AG/R RED
11. RCA connectors. Mount them
straight and against the PCB
qL1 : MC1.5T
12. Tuning coil

7
Construction
qRY1 : VR1D122C
13. Relay
RY...
qC1 : 1000µ / 25V
qC4 : 470µ / 25V
qC7 : 1000µ / 25V
qC8 : 470µ / 25V
qC18 : 1µ / 50V
14. Electrolytic capacitors
(Watch the polarity !)
C...
qVR1 : 7809
qVR2 : 7806
15. Voltage regulators
VR...
qRV1
16. Potentiometer. Mount it
straight and against the PCB
Connect as shown
Connect the motor to the PCB
by means of two wire jumpers
M+ M-

8
Construction
First: Bend the leads exactly like the drawing.
Next: Solder one lead, and check the position, if necessary correct by heating
the soldering.
Last: Solder the second connection.
qLD1
qLD2
qLD3
qLD4
qLD5
17. Mounting the LED’s. Check the polarity ! Short lead = Cathode or -!
IMPORTANT
Mount these LED’s exactly like in the
drawing, otherwise some LED’s will not
fit correctly in the front panel.
Please also use the front panel as a po-
sitioning reference.
CATHODE
LD...
LD...
CATHODE
11mm
7mm
7mm

9
Construction
IC1 : VK8022
(programmed PIC 12CE518)
IC2 : LM258 or eq.
18. IC’s
(Watch the position of the notch !)
Make sure to remove the protective foil from the front and rear panel !
Stick the supplied rubber feet onto the bottom of the enclosure.
19. Mounting the PCB into the enclosure

10
Adjustment & testing
Inspect the complete assembly once more before applying
power to the unit !
20. Adjustment and testing
12VDC / 300mA
An adaptor jack allows hook-up of a suitable 12VDC / 300mA wall adaptor.
Make sure the input voltage matches your domestic AC voltage. Mind the
polarity !
Plug the adaptor into a wall outlet. The left channel indicator lights and the
volume control automatically turns to zero. The ‘volume down’-led will also
light until the volume control has reached it’s endpoint. Press any button to
stop this action.
Now you can perform the adjustment of the RF receiver section. Use the
supplied plastic screwdriver to adjust the tuning coil L1. Press and hold any
button on the remote
control and slowly adjust
L1 until LD5 lights with
maximum brightness.
Next, call on some
assistance and have
somebody push the remote
at a distance of a couple of
meters/yards, while you
slowly adjust L1 again for
maximum brightness of
LD5.

11
Adjustment & testing
Your K8022 is capable of grabbing and memorising the code transmitted from
the Velleman two channel RF remote control transmitter.
At the factory, the K8022 processor has been pre-programmed for operation
without a custom code (i.e. no jumpers on remote). There is no need to enter
the learn-mode if no code has been set on your remote control. Should you ex-
perience interference due to other Velleman remotes with identical code set-
tings, then you can set a different code on your remote control (see remote
control manual for ‘how-to’ instructions). Once the transmitter code is set, the
K8022 will need to learn and memorise it.
Volume will now turn to zero.
Learning cycle is completed
and the new code will be
memorised. Repeat this proce-
dure if code is not memorised
correctly
(e.g. due to interference). Code
will be retained in case of power
failure.
The unit is now ready for use.
Fasten the lid with the two sup-
plied screws as shown.
Adjustment and testing (continued)
How to operate the learn-mode:
•Press and hold SW1 (Channel 1) and plug-in power supply.
•Release SW1
•LD2 will turn on briefly.
•Press ‘volume down’ (left button) on remote.
•LD2 will turn on briefly to confirm.
•Release ‘volume down’
•LD1 will turn on briefly
•Press ‘volume up’ (right button) on remote.
•LD1 will turn on briefly to confirm.
•Release ‘volume up’
•Channel indication (LD3&LD4) will toggle briefly.
•Press both remote control buttons simultaniously.
•Channel indication will toggle briefly to confirm.
•Release both buttons

12
Hook-up
21. Hook-up to your system
00:00 00:00
Hook-up the left and right outputs of your K8022 to the left and right inputs
of the amplifier.
You can hook up a line-level source (e.g. CD player, MD player, tuner, tape
recorder, ...) to each input channel
TO
POWER
AMPLIFIER TO
LINE
SOURCE
1
TO
LINE
SOURCE
2

13
Operation
22. Operation
1
23
4
567
Channel I indicator
Channel I selector. Push to select channel I.
Channel II selector. Push to select channel II.
Channel II indicator
‘Volume down’-indicator.
Lights when ‘volume down’ is pressed on remote control.
Volume control. Turn clockwise to increase volume
‘Volume up’-indicator.
Lights when ‘volume up’ is pressed on remote control.
1
2
3
4
5
6
7
Remote control :
12
‘Volume down’-pushbutton. Push to
reduce volume
‘Volume up’-pushbutton. Push to
increase volume
Press both buttons simultaniously to toggle
between CH I and CHII
1
2
Affix the supplied sticker to the housing.
Velleman
SRFCE
433,92 MHz

14
PCB
23. PCB layout
J2
J1
Velleman Kit
K8022'1
Reception Indicator
Tuning
R CH2 L R CH1 L R OUT L
Adjust L1 for max. brightness Use plastic trimtool Push transmitter
12VDC/300mA
+ -
How to operate learn mode: -Press and hold SW1 at power-up -LD2 will turn on briefly -Press 'volume down' on remote -LD1 will turn on briefly -Press 'volume up' on remote -LD1 will turn on briefly to confirm -Channel indication will toggle briefly -Press both remote buttons When learn cycle is completed volume will turn to 0 -LD2 will turn on briefly to confirm -Channel indication will toggle briefly
to confirm
Power supply
Input section
Motor control
RF receiver Processor
ZD2
ZD1
VR2 VR1
T6
T5
T4
T3
T2
T1
R21
R20
R19
R18
R17
R16
R15
R14
R13
R12 R11
R10
R9
R8
R7
R6
R5
R4
R3
R2
R1
LD5
LD4 LD3
L2
L1
IC2
IC1
D7
D6
D5
D4
D3
D2
D1
C18
C17
C16
C15
C14
C13
C12
C11
C10
C9
C8
C7 C6 C5
C4
C3 C2
C1
LD1
LD2
M+
M-
RV1
C1 C2COM2
COM1
NC2 NC1
NO2 NO1
RY1
SW
SK1
SW1 SW2
R22
SK7 SK6 SK5 SK4 SK3 SK2

15
Diagram
24. Diagram
*Values are subject to changes in the interest of product improvement Refer to partlist and/or added notes for actual values and references
R1 22E
/0.6W
Vm
R2 1K
LD2
LED3RL
LD1
LED3R
L
T1
BC
547T2BC547
D3 1N4007D4
1N4007
M+
M-
C
9
100n
T3
BC
557
T4 BC557
D5
1N4007D6
1N4007
GND
R
ight
Left
R
Y1
VR1D122C
Vr
T6 BC547
G
ND
D7
1N4148
R20
10K
S
K
4
C
H
1
L
S
K
6
C
H
2
L
S
K
5
C
H
1
R
S
K
7
C
H
2
R
S
IG
G
N
D
S
I
G
G
N
D
S
I
G
G
N
D
S
I
G
G
N
D
M
R
V
1
M
+
M
-
S
I
G
G
N
D
S
IG
GND
S
IG
G
N
D
S
K3
O
UTR
S
K2
O
UTL
S
IG
GND
S
IG
GND
R
ELAY
SW
-
+
S
K1
DCJACKD1
1N4007
G
ND
C
1
1000µ
GND
C2
100n
G
ND
IO
GND
VR1 UA7809
GND
C3 100n
GND
C
4
470µ
GND
C5 100n
G
ND
IO
GND
VR
2
UA7805
G
ND
C6
100n
G
ND
C
7
1000µ
G
ND
C8
470µ
GND
D2
1N4007
Vm
Vp
Vrx
Vr
R21 1
S
IG
GND
R22 560
GND
G
P
4
/
O
S
C
2
3
1
G
P
5
/
O
S
C
1
/
C
L
K
I
N
2
G
P
3
/
M
C
L
R
/
V
p
p
4
G
P
2
/
T
0
C
K
l
5
G
P
0
7
G
P
1
6
8
I
C
1
P
I
C
1
2
C
5
1
8
S
W
2
S
W
1
CODE
G
N
D
G
N
D
Left
Right
V
p
C
1
0
1
0
0
n
G
N
D
R3 1K
LD3 LD4
R4 1K
G
N
D
V
p
RELA
Y
C14 1p C15 3p3
R10 18K R9 270
R11 33K R12 5K6
R13 2K7
R14 18K
R15 6K8
C12 22p C13 330p
C11 82p
C16 330p
ZD1 4V3ZD2
4V7
R17 1KR18
1K
C18 1µ
G
N
D
GND
GNDGND
GND
T5 BF199
L1 1T5
L2 1µH
GND
Vrx
3 2
8
4
1
IC2A LM258
5 67
IC2B
VrxVrx
GND
Vrx
R16
6M8
C172p2
R19 2K2
LD5
GND
CODE
R
5
Vp
R6
Vp
R7
Vp
R8
10K
Vp
G
N
D

VELLEMAN COMPONENTS NV
Legen Heirweg 33
9890 Gavere
Belgium Europe
Info & support: www.velleman.be
Modifications and typographical errors reserved
©Velleman Components NV
H8022IP -2002 -ED2