Velleman K8065 User manual

POCKET AUDIO GENERATOR

K8065

ILLUSTRATED ASSEMBLY MANUAL H8065IP-1

Total solder points: 109

Difficulty level: beginner 1 2 3 4 5 advanced

Great littlegadget forservice

repair,testing,education,etc...

Features:

 Microprocessor technology

 Digital waveform generation

Specifications:

 Sine wave: 50Hz, 100Hz, 1KHz, 10KHz, 20KHz

 Burst: 50Hz, 100Hz, 1KHz

 Burst mode: 20ms ON, 500ms OFF

 Noise: 32-bit digital noise

 Output level (10Kohm): 0 to 775mV (0dB)

 Outputs: 2 x RCA (cinch)

 Power supply: 2 x CR2016 or 2 x CR2025 battery (excl.)

 Dimensions: 86 x 50 x 25mm (3.4" x 2.0" x 1.0")

Features & Specifications

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.

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 CORRECT

MOUNTING SEQUENCE !

You will find the colour code for the resistances and the LEDs in the HALG

(general manual) and on our website: http://www.velleman.be/common/service.aspx

 R3 : 20K (2 - 0 - 0 - 2 - 1)

 R14 : 10K (1 - 0 - 0 - 2 - 1)

4. Metal film resistors

R...

Construction

 D1 : 1N4148

2. Diode. Watch the polarity !

D...

CATHODE

 IC1 : 14P

6. IC socket, Watch the

position of the notch !

 J1

 J2

1. Jumper

 C1 : 15pF (15)

 C2 : 15pF (15)

 C3 : 100nF (104)

 C5 : 560pF (561)

 C6 : 10nF (103)

 C7 : 15nF (153)

7. Capacitors.

C...

 RV1 : 1K

8. Resistor trimmer

RV1

 ZD1 : 5V1

3. Zenerdiode. Watch the

polarity !

ZD...

CATHODE

 R17 : 1K5 (1 - 5 - 2 - B)

 R19 : 1K (1 - 0 - 2 - B)

5. Resistors

R...

Construction

 C4 : 47µF

14. Electrolytic Capacitor.

Watch the polarity !

C...

 SW1

9. Slide switch.

 E1

10. Battery holder

 T1 : BC547C

 T2 : BC547C

 T3 : BC557C

11. Transistors

 R1 : 20K (2 - 0 - 0 - 2 - 1)

 R2 : 20K (2 - 0 - 0 - 2 - 1)

 R4 : 20K (2 - 0 - 0 - 2 - 1)

 R5 : 20K (2 - 0 - 0 - 2 - 1)

 R6 : 20K (2 - 0 - 0 - 2 - 1)

 R7 : 20K (2 - 0 - 0 - 2 - 1)

 R8 : 20K (2 - 0 - 0 - 2 - 1)

 R9 : 10K (1 - 0 - 0 - 2 - 1)

 R10: 10K (1 - 0 - 0 - 2 - 1)

 R11: 10K (1 - 0 - 0 - 2 - 1)

 R12: 10K (1 - 0 - 0 - 2 - 1)

 R13: 10K (1 - 0 - 0 - 2 - 1)

 R15: 10K (1 - 0 - 0 - 2 - 1)

12. Vertical metal film resistors

R...

 R16 : 1K5 (1 - 5 - 2 - B)

 R18 : 1K5 (1 - 5 - 2 - B)

13. Vertical resistors

R...

 X1 : 20MHz

15. crystal

X...

Max. 8mm

 LD1 : 3mm Red

 LD2 : 3mm Red

 LD3 : 3mm Red

 LD4 : 3mm Red

 LD5 : 3mm Red

COLOR= 2...5

LD...

CATHODE

Construction

16. LEDs. Watch the polarity!

A B

 SW2 : KRS0611

 Mount the push button at the solder side of the

PCB !

SW...

17. Push button.

 IC1 : VK8065

(programmed PIC16F630)

18. IC. Watch the position of the notch!

solderside

Axis of a

rotary switch.

 Close the enclosure with the 2 supplied screws.

 Drill two Ø3mm holes in the housing according to figure 1.0.

The RCA cable will run through them.

 Solder the signal wires or the RCA

cable to the 'OUT' terminal on the PCB

(see figure 2.0).

 Solder the shielding of the RCA cable

to the 'GND' terminal on the PCB (see

figure 2.0).

19. Assembly

Assembly

3mm drill.

Fig. 1.0

Fig. 2.0

shielding

signal

GND

Assembly

 Insert two CR2025 or two CR2016 batteries into the battery holder.

Mind the polarity!, see figure 3.0

 Mount all parts and close the housing by means of the enclosed

screws, see figure 4.0.

 BEWARE: Do not forget to feed the RCA

cable through the two holes in the housing.

Fig. 4.0

Fig. 3.0

Table of contents

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