Alan 48+ Multi B service manual

CAM350 PRO V 7.0 : Tue Feb 03 13:19:42 2009 - (Untitled)

D

C

B

A

123456

REVISION RECORD

DATE:

APPROVED:ECO NO:

LTR

PA

SW601

CB

U601

AUDIO AMP

EXT SPK

VR102

AF VOLUME

ANL

Q508

AUDIO

D504,505

ANL

AM/FM SW

SPK

OFF

EXT S-METER

T201

MOD TRANSFORMER

AM MOD

PA

REV:SIZE:CODE:

ANT

AM MOD

CONTROL

RV201

AM MOD ADJUST

LPF

DRAWING NO:

Q405

RF AMP

SHEET: OF

THAI RADIO COMPANY

U6

MOD AMP

ALC

Q204,205

Q404

DRIVER

ALAN48P 4W BLOCK DIAGRAM

U501

TK10931

FM DET

AM AMP AM DET

FM LIMIT

455K

CF502

U701

SQ CTRL

AM/FM CTRL

TX S-METER

FM MOD

MIC AMP

U701

RV301

COMPANY:

MIC GAIN

MIC

Q504

BUFFER

Q403

PRE DRIVE

Q402

DOUBLER

TITLE:

DATED:CHECKED:

SCALE:

DATED:RELEASED:

CHUTCHAWAL P.

2nd MIXER

X501

10.24MHz

VCO

Q408,D402

DRAWN: DATED:

B+

D407

UNLOCK

REG

QUALITY CONTROL: DATED:

B

CF501

10.695 MHZ

Q502,503

1st MIXER

RF AMP

RF BPF

D502,503

Q501

MODULE

RF ATTEN

DA501,Q510

U701

AGC CTRL

8 8

RV101

RX S-METER

CH9

Q.UP

LCD DISPLAY

Q.DN

BUFFER

AM/FM

Q306

M1M2M3M4M5

SCAN

VCO LPF

IC 101

CPU

2

3

DN UP

RX/TX SWITCH

EEPROM

X101

4.0MHz

1

SW101

P HI/LO

IC6

PLL IC

X401

4.5MHz

U702

PLL IC

REGULATOR

PA

CB

SW201

ANT

D

VR501

RF GAIN

-

+

POWER 13.2 VOLT

LO

SW203

DX

C

B

A

ALAN 48P 4W SMT MULTI CIRCUIT DESCRIPTION

INTRODUCTION

1.Multi BAND:Italy,Italy-34CH, Germany-80CH, Germany,Germany-80CH-40CH-4W
Spain, Europe, CEPT, England, England-CEPT, Poland ,Poland-400CH, Russi
a-400CH ,France,Sweden

2. BLUE COLOR DISPLAY
3 . THE FREQUENCIES FOR TRANSMITTER AND RECEIVER LOCAL
FREQUENCIES ARE ALL DRIVEN FROM A SINGLE 10.240MHz CRYSTAL (X501)
BY MEANS OF A PHASE LOCKED LOOP.
THE FIRST LOCAL OSCILLATOR FREQUENCIES ARE 14.915MHz(Poland-400CH

CH.1) TO 20.875MHz(Sweden CH.24) FOR RECEIVER. THE SECOND LOCAL
FREQUENCY IS FIXED AT 10.240MHz(X501) TO GENERATE SECOND IF 455
〔KHz〕. DURING TRANSMIT, THE VCO OF THE PLL OPERATES 12.805MHz TO

15.785MHz.

TO MCU IC PIN 7-9 Q301 Q302 Q
303 Q304 Q3
05 Q307 D30

1D302

VCO

RX LOCAL FREQUENCY : 14.915MHz(Poland-400CH CH.1) TO 20.875MHz
(Sweden CH. 24)
TX FREQUENCY : 12.805MHz TO 15.785MHz

THE VCO OPERATING FREQUENCY FOR THE RECEIVER IS 14.915MHz (Poland-

400CH CH. 1) TO 12.805MHz (Sweden CH. 24) AS THE FIRST LOCAL
OSCILLATOR, INJECTED THROUGH THE BUFFER AMP Q306 INTO THE FIRST
TR MIXER Q502,Q503

DESCRIPTIONS OF EACH BLOCK
INTRODUCTION

Q306

BUFFER

THE SYNTHESIZER IS IMPLEMENTED WITH THE FOLLOWING
COMPONENTS : PLL IC(IC103), CRYSTAL(X401) VCO, VARICAP DIODE(D301)

THE IC 103 IS A HIGH PERFORMANCE DUAL FREQUENCY SYNTHESIZER

WITH

TWO INTEGRATED HIGH FREQUENCY PRE-SCALARS FOR RF OPERATION

THE Q305,Q307,Q301-304,L301,C314,D301,C309,C316,C317,C319 ARE CLAP
OSCILLATOR CIRCUIT TO OPERATE AS A VCO OF THE IC103.

THE Q304 IS A SWITCHING DIODE TO CONNECT OR DISCONNECT THE TUNING
CAPACITOR IN THE VCO OSCILLATOR TANK CIRCUIT FOR TRANSMITTER OR
RECEIVER.
THE Q306 WORKS AS A BUFFER AMP FOR RX LOCAL FREQUENCIES AND TX
CARRIER GENERATING FREQUENCIES.
THE Q301-303 IS A SWITCHING DIODE TO CONNECT OR DISCONNECT THE
TUNING CAPACITOR IN THE VCO OSCILLATOR TANK CIRCUIT FOR BAND
SELECT.

REFERENCE FREQUENCY (CRYSTAL)

THE CRYSTAL, X401(4.5MHZ) AND OTHER COMPONENTS AS PIN.14 OF IC10
3 AND IC101 CAN MAKE A REFERENCE FREQUENCY OSCILLATOR WITH CK (Pi
n8), DATA (Pin9), EN (Pin7) TERMINALS IN IC103 ARE USED FOR MCU SERI
AL DATA INTERFACE . THIS SET IS USED EXTERNAL CLOCK SOURCE BY THE
CRYSTAL. THE REF_FREQUENCY(4.5MHz) IS ADJUSTED BY CT401 EXACTLY.

VCO

THE Q 3 0 5 , 307 AND SURROUNDING PARTS ARE CONSISTING A CLAPP
OSCILLATOR WORKS AS A VCO OF IC103 WITH APPROPRIATE CONTROL
VOLTAGE ON D301.THE VCO CAN BE OSCILLATE OVER THE REQUIRES RANGE
OF 12.805MHz TO 20.875MHz .

PHASE DETECTOR AND VCO CONTROL

THE PHASE DETECTOR IS A DIGITAL PHASE COMPARATOR WHICH COMPARES
THE PHASE OF THE REFERENCE SIGNAL WITH PROGRAMMABLE DIVIDER
OUTPUT SQUARE WAVES AND DEVELOPS A SERIES OF PULSE WHOSE DC
LEVEL DEPENDS ON THE PHASE ERROR OF EACH SIGNAL.

THE PHASE DETECTOR PULSE OUTPUT IS FED TO AN ACTIVE LOW PASS FILTE
R, AND FED TO VARICAP D301 CONTROL THE VCO FREQUENCY.

SWITCHING OF TUNING CAPACITOR IN VCO

THE VCO CIRCUIT MUST USE WITH A WIDE RANGE OF FREQUENCIES 12.805
MHz TO 15.785MHz FOR TRANSMITTER AND 14.915MHz(CH.1) TO 20.875MHz
FOR RECEIVER.
TO COMPLY ABOVE RANGE OF VCO, THE TUNING CAPACITANCE SHOULD
SWITCHED FOR TRANSMISSION OR RECEPTION.
THE TUNING CIRCUIT CONSISTS WITH C313,Q304 WHEN THE VCO IS
WORKING AS A RECEIVER, WHEN TRANSMITTING MODE, C 3 1 3 ,Q 3 0 4
BECOMES TURN ON. WHEN RECEIVING MODE, C313, Q304 BECOMES OFF,L301
AND THE D301 CAPACITANCE OF MAKE TUNING FUNCTION.

RECEIVER LOCAL OSCILLATOR OUTPUTS

1ST MIXER : THE OUTPUT SINGLES OF Q305 IS INJECTED TO THE
SOURCES OF 1ST MIXER Q502-503 IN THE 1ST IF MIXER SECTION.
2ND MIXER : THE OUTPUT OF 10.240MHz OSCILLATOR CIRCUIT WITH X501 IS
INJECTED INTO THE U501. INCOMING IF SIGNAL AND 10.695MHz SIGNAL ARE
MIXED INSIDE THE U501 TO EXTRACT 2ND IF SIGNAL 455 KHz.

DESCRIPTION OF OTHER CIRCUITS

TRANSMITTER

RF AMPLIFICATION

THE OUTPUT OF BUFFER AMP Q402 IS FED THROUGH TUNING C326,L401A,L40
2A TO THE BASE OF PRE DRIVER AMP Q403. THE PRE DRIVER AMP OUTPUT
SIGNAL FED THROUGH TO DRIVER AMP(Q404), FED THROUGH TO POWER
AMP(Q405) TO THE ANTENNA.

CIRCUIT FOR SUPPRESSION OF SPURIOUS RADIATION

THE TUNING CIRCUIT BETWEEN THE OUTPUT OF FINAL AMP Q405 AND
ANTENNA, 3 STAGE "LPF TYPE" NETWORK L409, L410, L411,L412,L413,LA401,C4
26, C427, C429, C430,C434,C435,C438,C439,CA401,RA401 SERVES AS A
SPURIOUS RADIATION SUPPRESSOR.
THIS NETWORK ALSO SPURIOUS RADIATION SUPPRESSOR.

THIS NETWORK ALSO SERVES TO MATCH THE IMPEDANCE BETWEEN TX
POWER TR Q405 AND ANTENNA.

MAXIMUM MODULATION CONTROL

MODULATION SIGNALS ARE FILTERED WITH RC NETWORK AND GOES TO THE
AUDIO_AMP IC(U601) TO MAKE NOMINAL SIGNAL LEVEL TO ACHIEVE WANTED
MODULATION.TO CONTROL INCOMING AUDIO SIGNAL BY ALC CIRCUIT. THE
ALC ARE Q 9 0 2 ,D 9 0 2 , R V 9 0 1 THAT’S CIRCUIT CONTROL MAXIMUM
MODULATION CAPABILITY
AND MAXIMUM MODULATION LIMITTING.

RECEIVER

(1) RF AMP Q501 AMPLIFY RF SIGNAL FROM ANTENNA(Q505 Q506 BAN
D CONTROL), AND THEN THE AMPLIFIED RF SIGNAL IS FED THROUGH
MIXER(Q502 Q503) TO THE BASE OF MIXER Q502 Q503, ALSO VCO SOURCE'S
FREQUENCY LOWER 10.695MHz THAN THE FREQUENCY OF EACH CHANNEL IS
SUPPLIED TO MIXER.
(2) THE SOURCE OF 10.695MHz FREQUENCY IS FED THROUGH CF501
TO 2’ND MIXER U501.
(3) THE 455 KHZ FREQUENCY SIGNAL IS PRODUCED FROM U501 BY
MIXING THE OUTPUT SOURCE OF CF501 10.695MHz FILTER AND THE SOURCE
OF 10.24MHz FREQUENCY FROM CRYSTAL OSCILLATOR X501.
(4) THE U501 IS IF AMP, AND D505(AM&FM) BOTH IS DETECT DIODE.
AUDIO SIGNAL RECOVER BY THAT DIODE.
THE AUDIO SIGNAL IS FED THROUGH C530 TO AUDIO POWER AMP(U601) FOR
DRIVING SPEAKER.

AL-48P multi 4w(2sc2078) sch..sch-1 - Thu Oct 22 17:37:02 2009

23

31

22

11

ITEM
NO.

1 70-00007-00 MAIN BODY EGI T=1.0 1

10

32

3

16

35

17

34

6

33

36

18

37

13

4

14

20

26

29

12

19

8

7

15

2 74-00007-00

3

4
5 20-00002-00 JACK DC.SLDPRT 2

6 28-00000-00

7

8 72-00001-00 HOLDER(SPK)EGI T1 USCOATING 3

9

10 18-00033-02

11
12
13 04-00003-00 RF POWER FET RD16HHF1 1
14 03-00036-00 TRANSISTOR 2SC2314(F) 1
15
16
17 60-00053-02 (M3x6) Tapping screw 4
18 60-00028-01 (M3x10) Machine screw 5
19
20 63-00014-00 WASHER SPRING M3 RoHS ZINC 5

21
22 71-00009-00 BRACKET SPC T2 BLK-SPRAY 1
23
24
25

26

27

28 73-00003-00 HEAT SINK ALP3 13x26xT=2.0 MM. 1

29

30 60-00054-02

31

32

33

34

35 76-00015-00

36

37

38

PART NUMBER DESCRIPTION QTY.

74-00006-01

82-00014-00

12-00000-83

20-00004-00

03-00019-00
10-00028-01

90-00006-00
60-00064-02

62-00004-00

63-00007-00

60-00003-03
15-00005-01
60-00066-02

26-00001-00
MICA

85-00014-00
BUSHING

63-00002-00

90-00013-00

50-00031-01

76-00007-00

76-00008-00

76-00012-00

76-00014-00

explode veiw 48
plus multi4W
(SMT)FRONT

bottom cover SPC+VIN.SHT.T0.75

LENGTH 210MM. PITCH 2.5MM.

JACK MINIATURE FJ-2506 2.5MM 1

P.C.B MAIN 146X153.5X1.6 FR4

WASHER FIBER ?7x?3.2xT=1.0 RED 1

(+)TAP TITE SCREW BH 3X4-3S BLK 2

WASHER RUBB.&7X&25XT1.5 BLK 2

(+)TAPPING SCREW(BH) 3X8-2S

SHIELD PLATE ASS'Y ALAN 48 PLUS

SHIELD PLATE SPTE T0.3 15*30*0.3 1

SHIELD PLATE SPTE T=0.3 40*53 1

BLK(ALA

UPPER COVER SECC+VINYL

BLACK SHEET T=0.75MM

CORD STOPPER PP 1

MOLEX PLUG ASS'Y UL1015 /

SPEAKER

YD077A008007P(ID)-R0304K

1/1

KTB1367 TRANSISTOR 2

IC TDA2003H 5 LEG.SLDPRT 1

FELT &77XT0.3 1

(M3x6) TAP TITE 4

SS41 M3-1S ZN-PLAT 5

SCREW(SECURING) 2

CH-239(A) SW-1229.SLDPRT 1

BLK

10X130XT0.5 FELT STIC. 4

MULT1 46x64

SHIELD HOUSHING SPTE T0.3

15*33*15

SHIELD PLATE SPTE T=0.3

40*53(with insul)

SHIELD HOUSING SPTE T0.3

39.5*53.5*25

SEE NEXT PAGE

1

1

1

1

1

1

1

3

1

1

1

1

1

DIMENSIONS ARE IN INCHES
TOLERANCES:
FRACTIONAL
ANGULAR: MACH BEND
TWO PLACE DECIMAL

2

30

NEXT ASSY

USED ON

APPLICATION

THREE PLACE DECIMAL

MATERIAL

FINISH

DO NOT SCALE DRAWING

--

DRAWN

CHECKED

ENG APPR.

MFG APPR.

Q.A.

COMMENTS:

NAME

terdsak p. 09,DEC,08

DATE

MODEL

CUSTOMER

NAME&TITLE

SIZE

DWG. NO.

A

SCALE:2:1

Thai radio Co.,Ltd.

787 M.1, Banlane, A. Bang Pa-In
Ayutthaya 13160
Tel. [phone],Fax.[phone]

ALAN 48 PLUS MUTI 4W SMT

MIDLAND

EXPLODE VIEW

WEIGHT:

SHEET 1 OF 2

REV.

18

17

14

ITEM
NO.

1

2

16

2

3

PART NUMBER DESCRIPTION QTY.

86-00005-01

87-00005-01

84-00007-00

E.S.C ABS94HB BLACK+SILK

WHITE

KEY PAD "A" SILICONE

RUBBER 55'

LENS LEXAN T=1 CLEAR 1

1

1

15

13

8

9

5

17-00103-01

4

5 17-05503-01

6 18-00108-03 P.C.B SUB FRONT 1

32-00000-01

7

20

8 15-00037-01

4

9 32-00002-51

10 87-00006-00

11

83-00007-00

POTENTIOMETER

R1610N-4A1-B103-0H03

50KA:K161110-5M1112 PCB

SWITCH SLIDE SKS-22021 3

CONNECTOR SOCKET

KNOB CH ABS 94HB BLK 1

T

N-16-6R(PCB)-1 ASS'Y

SW ROTARY

SR10030F-20K-C7

KEY PAD "B" SILICONE

RUBBER 55'

3

1

1

1

1

7

6

19

10

21

31211

1

NEXT ASSY

APPLICATION

USED ON

DIMENSIONS ARE IN INCHES
TOLERANCES:
FRACTIONAL
ANGULAR: MACH BEND
TWO PLACE DECIMAL
THREE PLACE DECIMAL

MATERIAL

FINISH

DO NOT SCALE DRAWING

--

DRAWN

CHECKED

ENG APPR.

MFG APPR.

Q.A.

COMMENTS:

12

13

14 81-00022-00

15

16

17 mic pluge 1

18

19 90-00004-00

20 18-00096-03 P.C.B SUB VOLUME 1

21 60-00009-01

NAME

terdsak p. 09,DEC,08

83-00023-00

06-00004-41

91-00026-01

32-00003-21

AssemMic 248

DATE

MODEL

CUSTOMER

SIZE

A

SCALE:1:5

NAME&TITLE

DWG. NO.

KNOB VOL ABS 94HB BLK 4

LCD DISPLAY TCM-3064 1

HOUSING LCD PC 141

WHT (ALAN 48PLUS)

LED PLATE 1

TM115AP SW TACT 10

FELT BLACK

?5x?18xT=0.5MM.

(+)MACHINE

SCREW(FH)2.6X5 ZN-PLAT

Thai radio Co.,Ltd.

787 M.1, Banlane, A. Bang Pa-In
Ayutthaya 13160
Tel. [phone],Fax.[phone]

ALAN 48 PLUS MULTI 4W SMT

MIDLAND

EXPLODE VEIW

WEIGHT:

SHEET 2 OF 2

1

1

3

4

REV.

CAM350 PRO V 7.0 : Tue Feb 03 13:20:31 2009 - (Untitled)