Velleman-Kit K8030 User manual

ELECTRONIC RECORD/PLAYBACK MODULE
K8030
ILLUSTRATED ASSEMBLY MANUAL H8030IP-1
Total solder points: 148
Difficulty level: beginner 1 2 3 4 5 advanced
High-quality,naturalvoice/
audioreproduction.

2
Features:
 High-quality, natural voice/audio reproduction.
 Can be used to greet visitors, play pranks, warn burglars,…
 EEPROM technology with 100-year message retention.
 Microphone included.
 From 4 to 20 seconds of recording time per module.
 No memory loss in case of power failure.
 Loudspeaker included.
 2 Play modes:
 Push once to play message.
 Play message until button is released.
 Add an optional rotary switch (8404-1C) for message selection.
Specifications:
 8 ~ 16 Ohm, 120 mW speaker output.
 Power supply: 8 – 18 VDC, or 6V battery.
 Power consumption:
 DC power supply: 4mA in standby, max 100mA when playback.
 Battery operated :20µA in standby, max 100mA when playback.
 Sampling frequency: 6.4KHz.
 Dimensions: 94 x 73 x 25 mm / 3.7” x 2.9” x 1”
Features & Specifications

3
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 components 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 drawings.
⇒ 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.
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Assembly hints
1.3 Soldering Hints :
1- Mount the component against the PCB surface and carefully solder the leads
2- Make sure the solder joints are cone-shaped and shiny
3- Trim excess leads as close as possible to the solder joint
REMOVE THEM FROM THE TAPE ONE AT A TIME !
AXIAL COMPONENTS ARE TAPED IN THE COR-
RECT MOUNTING SEQUENCE !

5
 R1 : 47K (4 - 7 - 3 - B)
 R2 : 47K (4 - 7 - 3 - B)
 R3 : 47K (4 - 7 - 3 - B)
 R4 : 470K (4 - 7 - 4 - B)
 R5 : 470K (4 - 7 - 4 - B)
 R6 : 470K (4 - 7 - 4 - B)
 R7 : 4K7 (4 - 7 - 2 - B)
 R8 : 470K (4 - 7 - 4 - B)
 R9 : 2K2 (2 - 2 - 2 - B)
 R10 : 10K (1 - 0 - 3 - B)
 R11 : 4K7 (4 - 7 - 2 - B)
 R12 : 560 (5 - 6 - 1 - B)
 R13 : 4K7 (4 - 7 - 2 - B)
 R14 : 220K (2 - 2 - 4 - B)
 R15 : 4K7 (4 - 7 - 2 - B)
3. Resistors
R...
Construction
 D1 : 1N4007
 D2 : 1N4007
 D3 : 1N4007
 D4 : 1N4148
 D5 : 1N4148
2. Diodes, check the polarity !
D...
CATHODE
 J1
 J2
 J3
 J4
1. Jumpers
 IC1 : 28P
4. IC sockets. Watch the posi-
tion of the notch!
 SW1
 SW2 KRS0611
5. Push buttons
SW...

6
 C2 : 100nF (104, u1)
 C3 : 100nF (104, u1)
 C5 : 100nF (104, u1)
 C9 : 100nF (104, u1)
 C10 : 100nF (104, u1)
 C11 : 100nF (104, u1)
 C12 : 100nF (104, u1)
7. Ceramic Capacitors
C...
Construction
 SK2 : 2X
 SK3 : 3X
 SK4 : 3X
 SK5 : 3X
 SK6 : 2X
 SK7 : 2X
 SK8 : 2X
6. PCB pins
 LD1 : 3mm Red.
10. LED. Watch the polarity!
LD1
CATHODE
9. Transistors
 T1 : BC557
 T2 : BC547
 C1 : 470µF/25V
 C4 : 100µF
 C6 : 4µ7
 C7 : 4µ7
 C8 : 4µ7
 C13 : 100µF
8. Electrolytic capacitor.
Watch the polarity !
C...
 VR1 : UA7806
11. Voltage regulator
VR...
 SK1 :8 - 15VDC (power supply)
12. DC - Jack
 MIC1 : M300
13. Microphone
MIC1

7
Hook-up & use
 IC1 : ISD1420 or eq.
14 . IC’s. Watch the position
of the notch!
15. Hook-up & Use
Basic application : see section 15
Connect the included miniature speaker to the ‘SPEAKER’ connector SK7 using the supplied wire. If you decide
to use a different speaker, get one with an impedance between 4 and 8 ohms, and a power rating of 0.25W to 2W.
Higher power ratings will result in poor performance.
*Power supply :
AC powered : A connector is provided to connect a wall adaptor with an output voltage of 8 to 15VDC. Watch the
polarity : the center pin is positive.
Battery powered : Six-volt battery operation (e.g. 4 x AA battery) is possible via connector SK2. Watch the polarity.
*How to record a message :
Press and hold the ‘RECORD’-button. LD1 will light. The built-in microphone will capture your message. Release
the ‘RECORD’-button to end the recording. If LD1 turns off during recording, the memory is full and recording is
stopped. Max. recording time is 20 seconds.

8
Hook-up & use
*How to play a message :
Press the ‘PLAY’-button once to play the message. LD1 will flash once to indicate end-of-message.
*Other features :
 Message select : connectors SK3 and SK4 allow you to connect a selector switch (e.g. Velleman 8404-1C),
which allows you to choose between 5 different messages. ‘C’ is common, 1 to 5 selects message. Max
message length : 4 seconds (x5).
 Repeat message : short both pins of SK6 for message auto-repeat.
 External pushbuttons : Connector SK5 provides a way to connect an optional ‘PLAY’-button at a remote
location.
 Pushbutton between ‘GND’ and ‘P-E’ : same as the on-board play button
 Pushbutton between ‘GND’ and ‘P-L’ : same as the on-board play button, but message plays only once,
regardless of the time the button is pressed.
 For best results, keep the distance between the button and the board as short as possible (2m (7’) max.)
and if possible, use shielded wire.
Line out : Connector SK8 provides a line out, to allow hook-up of an external amplifier e.g. our K2637 or

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16. Connection & operation
Connection & operation
+
8..15VDC/ 200mA
+
-
AAA 1.5V
4x
CHOOSE POWER SOURCE
MESSAGE SELECT
OPTIONAL
OPTIONAL
OPTIONAL
PUSH ONCE TO PLAY MESSAGE
PLAYS MESSAGE UNTIL RELEASED
SPEAKER
8-16 OHM
SHORT FOR MESSAGE AUTO-REPEAT
PUSH ONCE TO PLAY MESSAGE
PRESS AND HOLD TO RECORD MESSAGE

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17. Schematic diagram.
Schematic diagram
A0
1
A1
2
A2
3
A3
4
A4
5
A5
6
A6
9
A7
10
PLAYL
23
PLAYE
24
REC
27
RECLED
25
XCLK
26
VCCD
28
VCC
A
16 VSS
A
13
SP+14
SP-15
ANAIN20
ANAOUT21
MICREF18
MIC17
AGC19
V SSD 12
IC1
ISD1400
SK2
IO
GND
V
R
1
UA7806
GND
D1
1N4007
GND
C1
470µ/25
C2
100n
GND
GND
C5
100n
GNDGND
C4
100µ
GND GND
GND
GND
C8
4µ7
R8
470K
GND GND
SW
-
+
SK1
DJ-005
D2
1N4007
D3
1N4007
GND
-
+
BATTERY
9-15VDC
PLAY-LEVEL
PLAY-EDGE
COM(GND)
SK3
COM
MES.1
MES.2
MES.3
MES.4
SK4
MES.5
D4
1N4148
D5
1N4148
R4
470K
R5
470K
R6
470K
GND GND GND
R1
47K
R2
47K
R3
47K
C11
100n
GND
C9
100n
R7
5K1
C12
100n
SK7
SPEAKER
SK8
R11
10K
GND
LineOUT
S
MIC1
M300
GND
G
N
D
C10
100n
R10
10K
R12
560
LD1
LED3RL
C6
4µ7
R13
4K7
T1
BC557
R14
220K
C7
4µ7
GND
R15
4K7
T2
BC547
GND
SK6
REPEAT
R9
2K2
+
-
GND
C13
100µ
MESSAGESELECT
C3
100n
GND
SW1
RECORD
SW2
PLAY
GNDGND
SK5

11
PCB
18. PCB

Modifications and typographical errors reserved
© Velleman Components nv.
H8030IP - 2003 - ED1
VELLEMAN Components NV
Legen Heirweg 33
9890 Gavere
Belgium Europe
www.velleman.be
www.velleman-kit.com
5 410329 290924