Elenco Electronics AM-550TK Instruction Manual download pdf (Page 9)

-8-

ASSEMBLY INSTRUCTIONS - AUDIO AMPLIFIER

We will begin by installing resistor R14. Identify the resistor by its color code and install as shown on page 3. Be careful to

properly mount and solder all components. Diodes, transistors and electrolytic capacitors are polarized, be sure to follow the

instructions carefully so that they are not mounted backwards. Check the box when you have completed each installation.

Test Point Pin

Foil Side

of PC Board

NPN Transistor

Figure C

Mount so E lead is

in the arrow hole

and flat side is in

the same direction

as shown on the

top legend. Leave

1/4” between the

part and PC board.

PNP Transistor

Figure D

Mount so E lead is

in the arrow hole

and flat side is in

the same direction

as shown on the

top legend. Leave

1/4” between the

part and PC board.

Diode

Be sure that the

band is in the

correct direction.

Figure E

EBC

Flat

Side

Flat

Side

Band

CathodeAnode

R14 - 47kΩ Resistor

(yellow-violet-orange-gold)

Q4 -

2N3904 Transistor NPN

(see Figure C)

TP6 - Test Point Pin

(see Figure A)

C11 - 10μF Lytic

(see Figure B)

C14 - 470μF Lytic

(see Figure Ba)

R13 - 82kΩ Resistor

(gray-red-orange-gold)

Pot / SW1 with

Nut and Washer

Knob (pot)

Solder 5 lugs

to PC board

C12 - 47μF Lytic

(see Figure B)

Top Side

Q5 - 2N3906 Transistor PNP

(see Figure D)

TP7 - Test Point Pin

(see Figure A)

Q6 - MPS6560 (8050)

Transistor NPN

(see Figure C)

TP8 - Test Point Pin

(see Figure A)

C13 - 470μF Lytic

(see Figure B)

R17 - 100Ω Resistor

(brown-black-brown-gold)

R16 - 1kΩ Resistor

(brown-black-red-gold)

R19 - 1Ω Resistor

(brown-black-gold-gold)

D2 - 1N4148 Diode

(see Figure E)

Q7 - MPS6562 (8550)

Transistor PNP

(see Figure D)

R18 - 820Ω Resistor

(gray-red-brown-gold)

R15 - 100Ω Resistor

(brown-black-brown-gold)

Electrolytics have a polarity

marking indicating the (–) lead.

The PC board is marked to

show the lead position.

Polarity

Mark

Capacitor C14

For safety, solder capacitor

C14 on the copper side as

shown. Bend the leads 90

and insert into holes.

Check that the polarity is

correct, then solder in

place. Trim the excess

leads on legend side.

Figure B Figure Ba

(–) (+)

–

Warning: If the capacitor is connected with incorrect

polarity, or if it is subjected to voltage exceeding its working

voltage, it may heat up and either leak or cause the

capacitor to explode.

Figure A

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 31 32

Comments to this Manuals

No comments

Elenco Electronics AM-550TK Instruction Manual Page 9

Comments to this Manuals

Related products and manuals for Soldering irons Elenco Electronics AM-550TK