Elenco Electronics M-2665K Assembly And Instruction Manual Download

Page: 17 / 18

-16-

PARTS LIST - SECTION C

RESISTORS

Qty.

Symbol

Description

Color Code

Part #

R31

5.05k

Ω

.5% 1/4W

green-black-green-brown-green

145050

R33

5.6k

Ω

5% 1/4W

green-blue-red-gold

145600

R35, 36

5.62k

Ω

.5% 1/4W

green-blue-red-brown-green

145650

R29

10k

Ω

5% 1/4W

brown-black-orange-gold

151000

R32

200k

Ω

5% 1/4W

red-black-yellow-gold

162000

R34

390k

Ω

5% 1/4W

orange-white-yellow-gold

163900

R30

2.2M

Ω

5% 1/4W

red-red-green-gold

172200

Note:

Resistor tolerance (last band) of 5-band resistors may be green instead of brown.

CAPACITORS

F (104)

Ceramic

251010

F (104)

Mylar

251017

Electrolytic (Lytic)

272244

SEMICONDUCTORS

D7 - D10

1N4148

Diode

314148

358/17358

Integrated Circuit

330358

MISCELLANEOUS

IC Socket 8-pin

664008

SECTION C

AC Voltage & Current Circuit

ASSEMBLE THE FOLLOWING COMPONENTS TO THE PC BOARD

D9 - 1N4148 Diode
D10 - 1N4148 Diode

(see Figure H)

R35 - 5.62k

Ω

.5% 1/4W Res.

R36 - 5.62k

Ω

.5% 1/4W Res.

(green-blue-red-brn-green)

(see Figure B)

C7 - .1

F (104) Mylar Cap.

R29 - 10k

Ω

5% 1/4W Res.

(brown-black-orange-gold)

(see Figure B)

R34 - 390k

Ω

5% 1/4W Res.

(orange-white-yellow-gold)

(see Figure E)

R32 - 200k

Ω

5% 1/4W Res.

(red-black-yellow-gold)

(see Figure E)

R31 - 5.05k

Ω

.5% 1/4W Res.

(green-blk-green-brn-green)

(see Figure E)

In all of the following steps

the components must be installed on the top legend side

of the PC board. The board is turned to solder the component leads on the
selector switch side

C9 - .1

F (104) Ceramic Cap.

R33 - 5.6k

Ω

5% 1/4W Res.

(green-blue-red-gold)

(see Figure E)

D7 - 1N4148 Diode
D8 - 1N4148 Diode

(see Figure H)

R30 - 2.2M

Ω

5% 1/4W Res.

(red-red-green-gold)

(see Figure E)

C8 - 22

F Lytic Capacitor

(see Figure I)

U3 - IC Socket 8-pin
U3 - 358 Integrated Circuit

Align the notch on the socket (if any)
with the notch marked on the PC
board.

Solder the socket to the PC

board. Insert the IC into the socket with
the notch as shown below.

Socket

Notch

Figure I

Mount the capacitor with the
negative ( ) lead in the negative
hole and the positive (+) lead in
the positive hole marked on the
PC board. Lay the capacitor flat
against the PC board as shown.

Figure H

Mount the diode with the
band in the direction of the
arrow on the top legend.

-19-

ASSEMBLE THE FOLLOWING COMPONENTS TO THE PC BOARD

In all of the following steps

the components must be installed on the top legend side of the PC board. The

board is turned to solder the component leads on the selector switch side

U4 - IC Socket 14-pin
U4 - 324 Integrated Circuit

Align the notch on the socket (if
any) with the notch marked on
the PC board. Solder the socket
to the PC board. Insert the IC
into the socket with the notch as
shown below.

Notch

R44 - 76.8k

Ω

1% 1/4W Res.

(violet-blue-gray-red-brown)

(see Figure E)

R43 - 11k

Ω

1% 1/4W Res.

(brown-brown-blk-red-brn)

(see Figure E)

R42 - 39.2k

Ω

1% 1/4W Res.

(orange-white-red-red-brn)

(see Figure E)

R14 - 240k

Ω

5% 1/4W Res.

R15 - 240k

Ω

5% 1/4W Res.

(red-yellow-yellow-gold)

(see Figure B)

C12 - .01

F (103) Mylar Cap.

C13 - .01

F (103) Mylar Cap.

D3 - 1N4001 Diode
D4 - 1N4001 Diode

(see Figure H)

R45 - 158k

Ω

1% 1/4W Res.

(brown-grn-gray-orange-brn)

(see Figure E)

D11 - 1N4148 Diode

(see Figure C)

R7 - 98.8

Ω

1% 1/4W Res.

(wht-gray-gray-gold-brn)

(see Figure E)

R8 - 900

Ω

1% 1/4W Res.

(wht-blk-blk-blk-brn)

(see Figure E)

R9 - 9k

Ω

1% 1/4W Res.

(wht-blk-blk-brn-brn)

(see Figure E)

R10 - 90k

Ω

1% 1/4W Res.

(wht-blk-blk-red-brn)

(see Figure E)

R11 - 909k

Ω

1% 1/4W Res.

(wht-blk-wht-org-brn)

(see Figure E)

VR2 - 200

Ω

Potentiometer

D5 - 1N4001 Diode
D6 - 1N4001 Diode

(see Figure H)

R39 - 39.2k

Ω

1% 1/4W Res.

(org-wht-red-red-brn)

(see Figure E)

R37 - 150

Ω

5% 1/4W Res.

(brn-grn-brn-gold)

(see Figure E)

C11 - .01

F (103) Mylar Cap.

C10 - .01

F (103) Mylar Cap.

R41 - 1.91k

Ω

1% 1/4W Res.

(brn-wht-brn-brn-brn)

(see Figure E)

R38 - 10k

Ω

1% 1/4W Res.

(brn-blk-blk-red-brn)

(see Figure E)

R40 - 4.12k

Ω

1% 1/4W Res.

(yel-brn-red-brn-brn)

(see Figure E)

Summary of Contents for M-2665K

Page 1: ...ttp www elenco com e mail elenco elenco com DIGITAL MULTIMETER KIT MODEL M 2665K WIDE RANGE DIGITAL MULTIMETER WITH CAPACITANCE AND TRANSISTOR TESTING FEATURES Assembly and Instruction Manual Elenco E...

Page 2: ...xperience in soldering and wiring technique you should have no problems For the beginner care must be given to identifying the proper components and in good soldering habits Above all take your time a...

Page 3: ...scharge as fixed rate slope When the charge is equal to the initial starting point autozero level the read period is ended Since the discharge slope is fixed during the read period the time required i...

Page 4: ...is CAUTION sign denotes a hazard It calls attention to a procedure practice or the like which if not correctly adhered to could result in damage to or destruction of part or all of the instrument This...

Page 5: ...ck 3 Set the range selector knob to the position 4 If the semiconductor junction being measured is connected to the circuit turn off the power to the circuit being tested and discharge all of the capa...

Page 6: ...leads to the device or circuit being measured 5 Turn on the power to the device or circuit being measured The voltage value will appear on the digital display along with the voltage polarity 6 Turn o...

Page 7: ...es 2 Avoid any excessive accumulation of resin build up whenever you solder a connection 3 Take your time assembling the circuit board Work at a slow pace Remember that accuracy is far more important...

Page 8: ...remove the solder and the iron and let the connection cool The solder should have flowed smoothly and not lump around the wire lead 4 Here is what a good solder connection looks like 2 Insufficient s...

Page 9: ...0 1 2 3 4 5 8 9 Multiply By 1 10 100 1k 10k 100k 01 0 1 Multiplier Note The letter R may be used at times to signify a decimal point as in 3R3 3 3 10 F 16V 103K 100V The letter M indicates a tolerance...

Page 10: ...crew 1 2 turn Slip the two shims under the knob see Figure L If they do not slip in turn back the screw another 1 4 turn Tighten the screw just enough so that the shims can be pulled out You should no...

Page 11: ...0000 1 PC Board 516000A 1 Solder Roll 551135 1 Battery Snap BAT 590098 1 Battery 590009 1 LCD Window Plate 621002A 1 Range Selector Knob 622003 1 Bushing 624004 Qty Description Part 1 LCD Stopper 6290...

Page 12: ...N5232 Diode see Figure C BAT Battery Snap Insert both wires through the hole and mount the red wire to the hole and the black wire to the hole Solder the wires from the top legend side Notch Notch 24...

Page 13: ...Range Selector Knob LCD Window Plate NOTE If the range selector switch becomes hard to turn then loosen the M2 3 x 8 screw slightly 23 Testing Procedure SECTION C AC voltage and current circuit Measu...

Page 14: ...R1 9M 5 1 2W white black black yellow green 179051 1 VR1 200 220 Potentiometer 191320 Note Some resistors may not have a color coding but they will have the value imprinted on them Note Resistor toler...

Page 15: ...es orange white red red brown see Figure E C1 22 F Lytic Capacitor see Figure F R27 2k 1 1 4W Res red blk blk brown brown see Figure E R28 1 3k 1 1 4W Res brn orange blk brn brn see Figure E R46 5 6k...

Page 16: ...of 1 10 amps If the tests are not working check for cold solder joints and part values Turn the meter off and remove the battery and test leads DO NOT PROCEED TO SECTION C WITHOUT YOUR INSTRUCTOR S AP...

Page 17: ...der the socket to the PC board Insert the IC into the socket with the notch as shown below Socket Notch C8 Figure I Mount the capacitor with the negative lead in the negative hole and the positive lea...

Page 18: ...own brown brown 141930 1 R40 4 12k 1 1 4W yellow brown red brown brown 144130 1 R9 9k 1 1 4W white black black brown brown 149030 1 R38 10k 1 1 4W brown black black red brown 151030 1 R43 11k 1 1 4W b...

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Elenco Electronics M-2665K, Assembly And Instruction Manual

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