Alinco EDX-2 Service Manual

EDX-2

Service Manual

ALINCO INCORPORATED

TWIN 21 M ID . TOWER BUILDING 23F, 1-61, 2-CHOME,
SHIROMI CHUO-KU , OSAKA, 540-8580 JAPAN

Tel [phone] fax [phone]
e-mail: [e-mail]

Adjustment

1 . EUIPEMENT REQUIRED

1 . SSB Radio RP output power 3-10 watts

2. Power/SWR meter

3. Power supply output 24V 25A

4. 50 ohm dummy load

2. CONNECTION

3. ADJUSTMENT
1 . Set the radio frequency on around 8Mhz, the adjustable resistor “ RS”

and adjustable capacitor “ SVC1” set middle point.

2. To key start the tuner operate, the standard operating time is from 3-8
seconds, turn left the “ SR” if it is less then 3 seconds, till the operate
time on standard time.

3. Transmit the radio, check the SWR rate by power/SWR meter, the
standard rate is less 2.0, if higher then 2.0 must to adjust the “ SVC”
until SWR less then 2.0, this adjustment may be take some times to
complete.

4. Set the radio frequency on around 3Mhz, and transmit the radio, check
the SWR rate by power/SWR meter, the standard rate is less 2.0, if
higher then 2.0 must to adjust the 66 SVC” until SWR less then 2.0, and
return the 8Mhz check again.

5. Same as action 4 set the radio frequency on 7Mhz.

6. Same as action 4 set the radio frequency on 2Mhz.

7. After above action, key start the tuner and transmit the radio, check the

SWR and output power from 2~25Mhz for each one Mhz band.

EDX-2 PARTS LIST

Item QTY Reference Parts

1 3

2 31 C29 103

3 23 C65 473

AC1
AC2 473
AC3 473

C30 103
C31 103
C32 103
C33 103
C34 103
C35 103
C36 103
C37 103
C38 103
C39 103
C40 103
C4l 103
C42 103
C43 103
C44 103
C45 103
C46 103
C47 103
C48 103
C49 103
C50 103
C5l 103
C52 103
C53 103
C54 103
C55 103
C56 103
C57 103
C58 103
C59 103

C66 473
C67 473
C68 473
C69 473
C70 473
C71 473
C72 473
C72 473
C73 473
C76 473
C77 473
C78 473
C79 473
C80 473
C81 473
C82 473
C83 473
C84 473
C85 473
C86 473
C87 473

Description

473

C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C

C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C
C/C

Item QTY Reference Parts Description

4 1 JA9
5 2 AL1 100UH L

AL2 100UH L

6 4 CR1 1N4148 DE

CR2 1N4148 DE
CR3 1N4148 DE

CR4 1N4148 DE
7 1 AC5 1UF/50V
8 2 AC4 10UF/35V

C60

9 1 AQ1 2SA134 TR

10 1 AQ2 2SC2458 TR
11 1 Q1
12 5 Q2 2SC1675 TR

Q3 2SC1675 TR

Q4

Q5 2SC1675 TR

Q6 2SC1675 TR

13 3 R9 3K3

R10 3K3

R18 3K3

14 2 R16 10K

R19 10K

15 7 R6 1K

R7 1K

Rl2 1K

R14 1K

R17 1K

R50 1K

RS

16 5 R2 4K7

R3 4K7

R4 4K7

R5 4K7

AR2 4K7

17 2 R13 470E

RE 470E

18 2 CR5 6V2 ZD

CR6 6V2 ZD

19 3 CR7 1N4004 DE

CR8 1N4004 DE

CR10

20 5

21 6

C1

C26D 10P

C26C 10p

C26B 10p

C26A 10p

C2

C10 104

C13 104

C16 104

C61 104

C62 104

8PIN

10u/35V E/C

TIP31C

2SC1675 TR

1K

5.1V
10P

104

M-TYP

E/C
E/C

TR

U/R
U/R
U/R
U/R
U/R
U/R
U/R
U/R
U/R
U/R
U/R
U/R
U/R
U/R
U/R
U/R
U/R
U/R
U/R

DE
MA/C
MA/C
MA/C
MA/C
MA/C
M/C
M/C
M/C
M/C
M/C
M/C

PAGE-1

EDX-2 PARTS LIST

QTY Reference

Item

22 1
23 1
24 3

25 4

26 6

27 1 C12
28 1 C15
29 2 C17 160P MA/C

30 4 C18D 1600P MA/C

3l 3

32 1 C19D 910P MA/C
33 3 C20C 430P MA/C

34 1 C20D 470P MA/C
35 2 C21D 240P MA/C

36 4 C22D 120P MA/C

37 4 C23D 62P MA/C

38 4 C24D 33P MA/C

39 4 C27D 300P MA/C

40 l C28 5P MA/C
41 2 FBB FB FB

C3
C4
C5
C21B 220P MA/C
C21A 220P MA/C
C6 100UF/35V E/C
C7 100UF/35V E/C
C63
C64
C8
C9

C25D 22P MA/C
C25C
C25B 22P MA/C
C25A 22P MA/C

C17-1 160P MA/C

C18C
C18B 1600P MA/C
C18A 1600P MA/C
C19C
C19B 820P MA/C
C19A 820P

C20B 430P MA/C
C20A 430P MA/C

C21C

C22C 120P MA/C
C22B 120P MA/C
C22A 120P MA/C

C23C
C23B 62P MA/C
C23A 62P MA/C

C24C 33P MA/C
C24B 33P MA/C
C24A 33P MA/C

C27C 300P MA/C
C27B 300P MA/C
C27A 300P MA/C

FBA FB FB

Parts Description
91P
20P
220P MA/C

100UF/35V E/C

100UF/35V E/C
22P
22P

22P MA/C

3.3UF/16V T/C

100UF/16V T/C

1600P MA/C

820P MA/C

240P MA/C

62P MA/C

MA/C
VC

C/C
C/C

MA/C

QTY Reference

Item

42 1
43 6 J3 T.P

44 19 K1 VS-12MB-VD3 RL

45 3 K3 VS-12MB-VD3 RL

46 24 LED1 LED LED

J1 5 PIN

J4 T.P
J5 T.P
J6 T.P
J7 T.P
J8 T.P

K2 VS-12MB-VD3 RL
K6 VS-12MB-VD3 RL
K7 VS-12MB-VD3 RL
K8 VS-12MB-VD3 RL
K9 VS-12MB-VD3 RL
K10 VS-12MB-VD3 RL
K11 VS-12MB-VD3 RL
K12 VS-12MB-VD3 RL
K13 VS-12MB-VD3 RL
K14 VS-12MB-VD3 RL
K15 VS-12MB-VD3 RL
K16 VS-12MB-VD3 RL
K17 VS-12MB-VD3 RL
K18 VS-12MB-VD3 RL
K19 VS-12MB-VD3 RL
K20 VS-12MB-VD3 RL
K21 VS-12MB-VD3 RL
K22 VS-12MB-VD3 RL

K4 VS-12MB-VD3 RL
K5 VS-12MB-VD3 RL

LED2 LED LED
LED3 LED LED
LED4 LED LED
LED5 LED LED
LED6 LED LED
LED7 LED LED
LED8 LED LED
LED9 LED LED
LED10 LED LED
LED11 LED LED
LED12 LED LED
LED13 LED LED
LED14 LED LED
LED15 LED LED
LED16 LED LED
LED17 LED LED
LED18 LED LED
LED19 LED LED
LED20 LED LED
LED21 LED LED
LED22 LED LED
LED23 LED LED
LED24 LED LED

Parts

Description
M-TYP

PAGE-2

EDX-2 PARTS LIST

QTY Reference

Item

47 1 L1 46T T
48 2 L3 17T T

L13 17T T
49 1 L2 34T T
50 1 L4 13T T
51 1 L5 8T T
52 1 L6 11T T
53 1 L7 7T T
54 1 L8 6T T
55 1 L9 4T T
56 1 L10 3T T
57 1 L11 2T T
58 1 L12 1MH T
59 1 L13 14T T
60 1 L14 15T T
61 1 L16 FBX3 FB
62 1 M-KIT RF IN M-TYP
63 1 ANT
64 2 R1 56E

R47 56E
65 1 R15 22K
66 3 R20 680E

R22 680E

R23 680E
67 23 R24 2K2 F/R

R25 2K2 F/R

R26 2K2 F/R

R27 2K2 F/R

R28 2K2 F/R

R29 2K2 F/R

R30 2K2 F/R

R31 2K2 F/R

R32 2K2 F/R

R33 2K2

R34 2K2

R35 2K2

R36 2K2

R37 2K2

R38 2K2

R39 2K2

R40 2K2

R4l 2K2

R42 2K2

R43 2K2

R44 2K2

R45 2K2

R46 2K2
68 1 R48 100E 1E
69 1 R49 100E
70 1 5T 2.1 T
71 1
72 3 U2 TD62003AP

73 1 U5 HD6305V0P
74 1 X.L1 2.99MHZ XL

U1

U3 TD62003AP

U4 TD62003AP

Parts Description

U/R
U/R
U/R
U/R
U/R
U/R

U/R
U/R
U/R
U/R
U/R
U/R
U/R
U/R
U/R
U/R
U/R
U/R
U/R
U/R
U/R
U/R

HA17458

IC
IC
IC
IC
IC

QTY Reference

Item

Parts Description
10
10 NUT M4

SCREW 4+15

BALINGO

E D X - 2 AUTOMATIC ANTENNA TUNER

Alinco’s EDX-2 is an autom atic antenna tuner that matches your transceiver to an
antenna of over 3 meters in length ( 3.5MHz and above ), or over 12 meters in
length ( 1.6MHz and above ). This manual contains information you should know
before installing the ED X-2 and describes how to set up, connect, and operate.

SPECIFICATIONS

Frequency Range

Input power (MAX)
Input impedance

Tuning Voltage

3.5 - 30M Hz( with over 3 meter e lem en t)

1.6 - 30M Hz( with over 12 meter e lem e n t)

200W P.E.P.
50 Q

13.8V DC ± 10%

ENCLOSURE

The following items are enclosed in the package of the EDX-2:

(1) EDX-2 itself
(2) U-bolts, 2 pcs.
(3) U- bolt plates, 2 pcs.
(4) Flat washers ( large ), 8 pcs.
(5) Flat washers ( sm all), 4 pcs.
(6) Spring washers, 8 pcs.
(7) Nuts, 8 pcs.
(8) Hex bolts, 4 pcs.
(9) Self-tapping screws, 4 pcs.
(10) Rubber cap, 1 pc.

CAUTION !

• DO NOT use this tuner when it is not grounded. You must ground the
tuner through the ground terminal before operating. DO Not use the
mounting plates for grounding ; the ground-terminal should be
grounded independently.

• DO NOT use gas pipes for grounding.

• DO NOT transmit or tune without an antenna.

• DO NOT touch the antenna, ground wire, or come close to the
antenna element while transmitting or tuning. Place the EDX -2 and
antenna in a position where you are sure it will not be touched.

INSTALLATION

(1) Mount the EDX-2 to the desired position.(Figs. 2 & 3)
(2) Ground the EDX-2 grounding-terminal through an independent wire as short as possible.
(3) Connect an antenna element *to EDX-2’s antenna element terminal.(Fig.l)
(4) Connect the EDX-2’s control cable to your radio’s accessory terminal.(Fig. 1)
(5) Connect the EDX-2’s co-ax cable to your radio’s antenna terminal.(Fig.1

You may extend the control and co-ax cables to the desired length, (co-ax impedance is 50 Q .)
*Avoid undesirable antenna length(See p.3)

F i g . 2 M O U N T I N G T H E E D X - 2

MOUNTING

ON A POLE

U-bolts

Using h e x -he a d

Sprin g w a s he r

Fla t w a s her

Using h e x-h e a d

MOUNTING
ON A FLAT SURFACE

2

F i g . 1 C A B L E C O N N E C T I O N S

C o m a l c ib la

D X - 7 0 / D X - 7 0 1

1 3 F “ ar

(W H tT £ ) 2

(«**) - X

C&Lk)

----

Ground

7 ♦ 13. 8V DC

CpED)

Note:Do not open the BDX-2 cabinet unless necessary.

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OPERATION

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MEMO 1 D

i ,

— TUNE —

AQC-S L C,g

incnn

f . u 3 u.u

■mi

appears while tuning

•H M M

(1) Set the desired band and frequency of the

transceiver.

(2) Push the TUNE switch on the transceiver*

• "TUNE” appears in the LCD while tuning.

• Do not change the frequency or mode while

J

tuning.

(3) After tuning is completed TUNE” disappears.

• Normally, tuning requires less than 20 secs;
average tuning time is 4-6 secs.

* F o r D X - 7 0 p r e s s F U N C th e n T U N E .

■ C A L C U L A T I O N O F U N D E S I R A B L E A N T E N N A L E N G T H

Certain lengths of antenna element could be extremely difficult to tune with EDX-2,besides causing
high-voltage on the radio chassis. Such lengths are dependent on your operating frequency, and can be
calculated as follows.

Length of 1
half-wave (1/2 A )=

----------------- --------------------

x

-----

x n

and its multiples Operating frequency (MHz) 2

Where n is an integer.

[EXAMPLE] Undesirable antenna length with an operating frequency of 29.00MHz

Multiple _ 300 x _1_ x (i 2,3,41...)=5.2>1 0.3,15.5m etc.
of 1/2 A 29 2

N O T E : This e q u ipm e n t has been te s te d an d f o u n d t o c o m p ly w ith the lim its fo r a C lass B d ig it a l d e v ice, p u rs u a n t to p a r t 15 o f th e F C C
Rule s. T hese lim its a r e d e s ign e d to p r o v id e rea s o n a b le p ro t e c tio n aga inst h a r m fu l in te rfe re n c e in a r e s id e n ti a l in s ta lla tio n . T h is e q u ip m e n t

gen e rate s , uses, a n d ca n ra d ia te r a d io fre q u e n c y e n e rg y and, i f no t in s ta lle d a n d u s e d in a c c o r d a n c e w i th th e in s tru c t io n m an u a l, m a y

cau s e h a r m fu l interfe ren c e to ra d io com m u n icatio n s.
H o w e ve r, th e r e is n o g u a r a n te e t h a t in te rfe re n c e w i l l no t o c c u r in a p a r t ic u la r in s t a l latio n . I f th is e q u ip m e n t does ca u se h a rm f u l
in terfe r e nc e t o ra d io o r t e le v ision re c e p tio n , w h ic h can be de term in e d b y t u rn in g th e e q u ip m en t o ff an d on, the us e r is e n c o u ra g e d to t r y to
c o r r e c t th e interfe re n ce b y one o r m o re o f th e f o llo w i n g m easures:

— R e o rie n t o r re loc a te the r e c e iving antenna . — Con n e c t the equip m e n t int o an outlet o n a c ircuit diffe rent

— Increas e the sep ara tion b etween the equip m e n t and fro m tha t to w h ic h the receiv e r is c onnec ted .

re c eive r. — C o n s u lt the d eale r or an experienced radio / T V te c h n ic ian for

help.

All s ta ted s pecifica tions and circ u its are subject to c h ange w ith out notice .

Names of p roducts or d e s cription s mentio n e d in th is m a n u a l are use d lo r id entification p urp o se o n ly and m a y b e tra d e mark an d /or r e siste red trademark s o f their
re spec tive com pan y .

3

H I-

SAUNCO

S C H E M A T I C D I A G R A M

_qK1 J
j|JvS-12TBl*-C

To "A"

ALINCO, INC.

H e a d O ffice: " T W IN 21” M ID Tower Buildin g 2 3 F

Germ any : Esch bom er Landstrasse 55 60489 Frankfurt Am Main, G ermany

1-61, 2 -Chom e, S h ir om i, C h u o -ku, O s a k a 540, Japan
Ph o n e: 0 6-9 46-8150 Fax : [phone] Telex: 63086
E -m ail: 10 1243 .1 446<g>co m puse rve.com

U.S.A.: 438 Amapola Ave., Unit 130, Torrance, CA 90501, U.S.A.

Phon e: 310-618-8616 Fax: [phone]
http://www.alinco.com/

Phon e: 069-786018 Fax: [phone]

i n j i n

JS1 CS2 CS3 C54 CSS CS6 CS7
10? 103 103 103 103 1 03 103

P r in t e d in J a p a n
C o p y r ig h t l 99 6 A l i n e o ,In c.

4

Specifications subjects to change without notice