Alinco DJ - C7 T Service Manual Download | Manualshive

Page: 36 / 37

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36

BLOCK DIAGRAM

TV

IC3

MIX

D16

DAN222M

R3

MODE

SW

FMV

W/N

FL2

BPF

10.7MHz

P3

PV

VMOD

R3

P3

+B

+B

VDD

PCNT

BCHK

L C D

C P U

RESW

RE1

RE2

C3

SD

TLC

P3

7V

7V

C3

FL1

BPF 50.85MHz

Q15

2SC4738

IF AMP

R3

R3

FM SW

Q38

DTC144TM

MODE SW

R3

FM/WFM

W/N

T3

VDD

BU

RS

T

RESET

VDD

SD

A

SC

L

CR

X

C3C

C3

T3

PTT SW

C3

CT

X

PT3

SP‑MIC JACK

SP

Q402:MCH6102

IC401:MM1438

Q403:DTC144TM

D401:DG1M3

C3

DTC144TM

D36:MA27111

Li‑ion

BSW

+B

AFO

UMOD

VMOD

TSW

T3

C3

C3

T3

TSW

C3

C3

T3

C

TS

W

C

TV

TU

TV

C

TU

C

PV

C

PU

C

PU

PV

PLV

P3

PL

C

P3

C

C3

C3

C3

C3

C3

BD

4

C

BD

3

C

BND4

BND3

FM

C

W/

N

C

FMV

W/N

R3

EA

R

EARV

MONI SW

PTT SW

MICG

STB1

CLK

DATA

SP/EAR SW

BEEP

CLK

STB2

DATA

R3

C3

PO

AFPC

+B

C3

C

PTT UNIT

TUNC

TBST

CHG

TU

N

C

TB

S

T

CH

G

BAT

BA

T

FMV

TB

ST

TV

TU

T3

+B

T3

EARV

P3

uPC2757TB

Q36:MCH6102

Q37

CONTROL SIGNAL

TRANSMIT/RECEIVE

RECEIVE

TRANSMIT

RF AMP

Q13

2SC5066FT

BPF

D17

DAN235E

Q41

DTC144TM

BND3

EARV

BND2

BND3

TUNV

BAND SW

BND4

BND4

TUNV

EAR SW

BND2

NOISE FILTER

V C O

PO

BND2

BD

2

C

R3

R3

C

PU

VMOD

L‑VHF‑VCO

PLV

AFS

AMC

Q19

2SC5609

AGC

R3

AM

AM

C

AMC

WFM

VHF

UHF

HSJ1102‑01‑520

JK1

ANT

LOOP FILTER

D3,D4:MA2S304

D5:1SV279

Q2:2SC5066FT

Q5

2SC5066FT

BUFFER

DRIVER

IC1

uPC2771TB

POWER AMP

Q3

2SK3078A

TX SW

D2,D19

MA27077

LPF

LPF

TX SW

UHF‑VCO/MOD

LOOP FILTER

Q4

2SC5066FT

BUFFER

D9,D10,D11

Q7:2SC5066FT

1SV279

Q1:EMD6

D1:MA27111

MA27077

D7,D28

HPF

SPRIOU MUTE

MA27077

MA2S357

2SC5066FT

D14,D15

Q11

LOOP FILTER

BUFFER

12.6MHz

X1

UNLOCK SW

DTA123JM

Q8

XC62HR

IC4

3302MR

2SC5066FT

Q17

EMD3

IC6

COM0‑COM3

SEG0‑SEG25

SML‑521MUW

D33

DTA123JM

Q23,Q40

LCD/BP SW

Q16

DTC144TM

BD4930FVE

IC13

X2

4.19MHz

BR24L32FV‑W

IC11

EEPROM

CLONE

D30

MA27728

Q22:EMD3

IC9:XC6383A

D27:MA781WK

BOOSTER SW

TUNE SW

TC75S51FU

Q9

DTC144TM

TUNV

AUDIO SW

Q26

EMD3

IC12

NJM2070M

AUDIO AMP

VOLUME

IC14

BU9831F

Q42

2SK3541

Q27

2SC5609

FILTER

ACTIVE

DETECTER

L42:QA0159

L40:QA0160

D32

DAN222M

MODE

SW

TK10931V

IC7

I F

I C

FL3

BPF

450kHz

Q14

2SC4738

IF AMP

FMV

EAR MUTE

D34

MA27077

D37,38

MA27077

EAR SW

BAND SW

D29

MA27077

D24,25,26

1SV311

BPF

RF AMP

Q21

2SC5066FT

D31

1SV311

BPF

D20,D21
MA2S304

Q18

3SK274

RF AMP

BPF

MA2S304

D23

BAND SW

D18

DAN235E

LPF

LPF

VHF‑VCO/MOD

TX/RX LED SW

MB15A01

IC2

P L L

I C

D6,D8

Q6:DTC144TM

Q12

M38268MCL

DTA123JM

Q24

EMA8

Q28

Q29

EMA8

EMA8

Q30

Q31

EMA8

EMA8

Q32

EMA8

Q33

Q34

EMA8

DTA123JM

Q35

Q39

2SA2030

REGURATOR

D35

DG1M3

VDZ3.9B

D42

Q401

MCH6305

BATT SW

CHARGE

BATT UNIT

TIN

IC302

NJM2904V

TONE FILTER

DEV ADJUST

UHF:VR1
VHF:VR2

MO

IC301

BA4510FV

MIC AMP/FILTER

MIC

SCAN KEY

FUNC KEY

BAND KEY

V/M KEY

POWER KEY

KEY

KEY UNIT

POWER

V/M

SCAN

FUNC

BAND

MONI

DET

TUNC

BD1C

701MR

IC5

Q25

DTA123JM

R.ENC

R.ENC UNIT

TC4W53FU

IC8

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Summary of Contents for DJ - C7 T

Page 1: ...E XA1009 12 MB15A01PFV1 XA1010 13 XC6383A701MR XA1012 14 MM1438BW XA1013 15 TC75S51FU XA1014 16 Transistor Diode and LED Outline Drawing 17 LCD Connection A48A002X EXPLODED VIEW 1 Front View 2 Rear View 2 2 2 3 5 6 7 9 10 10 10 10 11 11 11 12 12 12 12 13 13 14 14 15 16 17 18 PARTS LIST MAIN Unit KEY Unit BATTERY Unit PTT Unit ROTARY ENCODER Unit Mechanical Parts Packing Parts ADJUSTMENT 1 Required...

Page 2: ... Dimensions Projection exclusive 58 w x 96 h x 14 5 d mm Weight Approx 102g EBP 58N inclusive Transmitter Type DJ C7T DJ C7E DC6 0V Approx 0 5W Output power EBP 58N equipped Approx 0 3W Modulation System Variable reactance frequency modulation Maximum Frequency Deviation 5kHz Spurious Emission 60 dB c or less Microphone impedance Approx 2kohm Receiver Type DJ C7T DJ C7E Receiver circuit Double con...

Page 3: ...band switch D17 then input to the mixer IC3 UHF BAND The signal input from antenna passes through the band pass filter and then it is amplified at RF amplifier Q21 The amplified signal is led to band pass filter and band switch D29 then input to the mixer IC3 3 Mixer FM AM The input signal to the mixer IC3 and the 1st local signal are added or subtracted at mixer IC3 and the crystal filter FL1 sel...

Page 4: ...ut from pin 13 of IC7 as an AF signal The 1st IF amplifier Q15 is controlled by reverse AGC at AGC amplifier Q19 to get better audio output even though the input is changed and the gain is controlled WFM The signal amplified at the 1st IF amplifier Q14 is supplied to pin 7 of IC7 for demodulation The input 2nd IF signal to pin 7 of IC7 is demodulated at the limiter amplifier and quadrature detecto...

Page 5: ...e control signal from IC6 with the frequency gained by dividing the reference frequency of 12 6MHz inside IC2 When the phase difference is found as a result of phase comparison the pulse signal is output from the charge pump output of pin 5 of IC2 then the signal is converted into the DC voltage at the passive filter and added to the cathode side of VCO variable capacitor D3 and D4 to make the pha...

Page 6: ...acitor D4 for deviation to change the capacity of the oscillation circuit resulting the FM deviation UHF The signal output from microphone amplifier is adjusted the maximum frequency deviation at VR1 The adjusted signal is added to the cathode of VCO variable capacitor D10 for deviation to change the capacity of the oscillation circuit resulting the FM deviation 2 Power Amplifier The oscillated si...

Page 7: ...0 SIN2 AN0 P57 ADT DA2 P56 DA1 P55 CNTR1 P54 CNTR0 P53 RTP1 P52 RTP0 P51 PWM1 P50 PWM0 P47 SRDY1 P46 SCLK1 P45 TXD P44 RXD P43 TOUT P42 INT2 P41 INT1 P40 P77 P76 P75 P74 P73 P72 P71 P70 INT0 RESET XCIN XCOUT VSS XIN XOUT P27 P26 P25 P24 P23 P22 P21 P20 P17 P16 P15 SEG39 P14 SEG38 P13 SEG37 P12 SEG36 P11 SEG35 P10 SEG34 P07 SEG33 P06 SEG32 P05 SEG31 P04 SEG30 P03 SEG29 P02 SEG28 P01 SEG27 P00 SEG26...

Page 8: ... I Clone data reception input 21 P43 φ TOUT BEEP BP3 I O Beep tone output Band plan 3 22 P42 INT2 DET I DC JACK detection input 23 P41 INT1 RE2 I Rotary encoder input 2 24 P40 RESW I Rotary encoder push SW input 25 P77 RE1 I Rotary encoder input 1 26 P76 P3C O PLL power ON OFF output 27 P75 PLC O Low VHF VCO ON OFF output 28 P74 PUC O UHF VCO ON OFF output 29 P73 PVC O VHF VCO ON OFF output 30 P72...

Page 9: ...ent signal 70 P30 SEG18 SEG18 O LCD segment signal 71 SEG17 SEG17 O LCD segment signal 72 SEG16 SEG16 O LCD segment signal 73 SEG15 SEG15 O LCD segment signal 74 SEG14 SEG14 O LCD segment signal 75 SEG13 SEG13 O LCD segment signal 76 SEG12 SEG12 O LCD segment signal 77 SEG11 SEG11 O LCD segment signal 78 SEG10 SEG10 O LCD segment signal 79 SEG9 SEG09 O LCD segment signal 80 SEG8 SEG8 O LCD segment...

Page 10: ... ch1 7 ch0 8 VDD 1 COMMON 2 INH 3 VEE 4 VSS 5 A Contorol input INH A On channel L L L H H ch0 ch1 NONE Don t care 33 3 XC62HR3302MR XA0519 3 3V Voltage Regulator 1 2 3 4 5 4 VSS 1 NC 2 VIN 5 VOUT 3 CE Active high 4510 5 8 7 6 4 3 2 1 4 GND 1 Output 1 2 Inverting Input 1 3 Non inverting Input 1 5 Non inverting Input 2 6 Inverting Input 2 7 Output 2 8 V 4 BA4510FV XA0537 Dual Operational Amplifires ...

Page 11: ... Amplifires 6 TK10931V XA0666 Narrow Band AM FM IF IC 10931 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 10 9 8 7 6 5 4 3 2 1 11 12 13 14 15 16 17 18 19 20 21 22 23 24 OSC MIXER AMP Vcc AGC Vref AM AMP FM AMP FM DET COMP RECT AM DET RSSI Vcc GND 8 7 6 5 4 3 2 1 4 GND 9831 1 CS 2 SK 3 DIO 5 VL 6 VW 7 VH 8 Vcc 7 BU9831F XA0882 Non volatile Electronic Potentionmeter ...

Page 12: ... Power Amplifier 1 2 3 4 5 6 2 GND C1X 1 RF INPUT 3 LO INPUT 4 PS 5 Vcc 6 IF OUTPUT 9 uPC2757TB XA0953 MMIC 1st Frequency Down converter 5 8 7 6 4 3 2 1 10 BR24L32FV XA1008 4k x 8bit EEPROM L32 1 A0 2 A1 3 A2 4 Vss 5 SDA 6 SCL 7 WP 8 Vcc Name Function A0 A2 User configurable chip selects Vss SDA SCL WP Vcc Ground Serial address data I O Serial clock Write protect input 2 5V 6 0V Power supply ...

Page 13: ...nary 14 bit reference counter 15 bit latch 15 bit latch 19 bit shift register 19 bit shift register 18 bit latch 11 bit latch 7 bit latch Programmable divider Binary 7 bit Binary 11 bit awallow counter programmable counter Control Circuit fout FC R P LD Phase comparator detector Digital lock Charge pump Do Vp circuit frequency switching Monitor FC MC fp fr fr fp LD fr fp 12 MB15A01PFV1 XA1010 PLL ...

Page 14: ...5 VCC 6 EXT 7 CEL 8 CS 438B 8 7 5 6 4 3 2 1 4 3 2 1 5 1 Non inverting Input 2 VSS 5 VDD 3 Inverting Input 4 Output SC 15 TA75S51FU XA1014 CMOS Singe Operational Amplifire 14 MM1438BW XA1013 Litium ion Battery Charging Control IC ...

Page 15: ... 2SK3541 SLM 521MUW XL0097 XT0180 2SC5066FT 2SC4738 XT0181 XT0192 2SC5609 MCH6102 XT0195 XT0196 2SA2030 DTC144TM XU0205 XU0206 DTA123JM XU0207 EMA8 XU0208 EMD3 XU0209 EMD6 M N K V1 T8 C R M2R 62 A2 S N C UN UW D S G1 G2 G S D D D G S D D G S D KN JE GREEN RED M2 B E C LL 3F B E C B E C AB C C B E C C B E C BW 06 E32 A8 Rbe none Rb 47kohm Rb 2 2kohm Rbe 47kohm Rbe 47kohm Rb 10kohm Rb 10kohm Rbe non...

Page 16: ...D Connection EL0056 A48A002X SEGMENT COMMON SEG0 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 SEG25 COM0 COM1 COM2 COM4 ...

Page 17: ...17 EXPLODED VIEW 1 Front View ...

Page 18: ...18 2 Rear View ...

Page 19: ... C105 CU3519 Chip C GRM36CH470J50PT C32 CU3526 Chip C GRM36CH181J25PT C107 CU3509 Chip C GRM36CH080D50PT C33 CU3527 Chip C GRM36CH221J25PT C108 CU3514 Chip C GRM36CH180J50PT C34 CU3535 Chip C GRM36B102K50PT C109 CU3522 Chip C GRM36CH820J50PT C35 CU3535 Chip C GRM36B102K50PT C110 CU3535 Chip C GRM36B102K50PT C36 CS0396 Chip Tantalum 20V 0 1UF C111 CS0429 Chip C 4V22UF C37 CU3535 Chip C GRM36B102K50...

Page 20: ...101J50PT IC4 XA0519 IC XC62HR3302MR C179 CS0431 Chip Tantalum 10V 2 2UF IC5 XA1014 IC TC75S51FU TE85L C180 CU3559 Chip C GRM155B30J105KE18D IC6 XA1011 IC CPU DJC7 C181 CU3554 Chip C GRM36B104K10PT IC7 XA0666 IC TK10931V C182 CS0425 Chip Tantalum TMCMBOJ107MTR IC8 XA0348 IC TC4W53FU TE12L C183 CU3559 Chip C GRM155B30J105KE18D IC9 XA1012 IC XC6383A701MR C184 CU3535 Chip C GRM36B102K50PT IC11 XA1008 ...

Page 21: ...U0205 Chip Transistor DTC144TMT2L R53 RK3538 Chip R 1005 1 16W 1 0K OHMJ Q17 XU0208 Chip Transistor EMD3T2R R54 RK3529 Chip R 1005 1 16W 180 OHM J Q18 XE0037 Chip FET 3SK274 TE85L R55 RK3550 Chip R 1005 1 16W 10K OHM J Q19 XT0192 Chip Transistor 2SC5609 R56 RK3534 Chip R 1005 1 16W 470 OHM J Q21 XT0180 Chip Transistor 2SC5066FT Y TE85L R57 RK3542 Chip R 1005 1 16W 2 2K OHMJ Q22 XU0208 Chip Transis...

Page 22: ...2 RK3562 Chip R 1005 1 16W 100K OHMJ C315 CU3552 Chip C GRM36B333K10PT R132 RK3562 Chip R 1005 1 16W 100K OHMJ C316 CU3554 Chip C GRM36B104K10PT R133 RK3534 Chip R 1005 1 16W 470 OHM J C317 CU3523 Chip C GRM36CH101J50PT R134 RK3514 Chip R 1005 1 16W 10 OHM J C318 CU3554 Chip C GRM36B104K10PT R135 RK3562 Chip R 1005 1 16W 100K OHMJ C319 CU3535 Chip C GRM36B102K50PT R136 RK3562 Chip R 1005 1 16W 100...

Page 23: ...Diode DG1M3 IC401 XA1013 IC MM1438BWLE R59 3644 Q401 XE0058 Chip FET MCH6305 TL Q402 XT0195 Chip Transistor MCH6102 TL Q403 XU0205 Chip Transistor DTC144TMT2L R401 RK3562 Chip R 1005 1 16W 100K OHMJ DS0446 SPEC SHEET R402 RK3550 Chip R 1005 1 16W 10K OHM J EA0116 SMA ANTENNA R403 RK3528 Chip R 1005 1 16W 150 OHM J EDC126 AC ADAPTOR T R404 RK3562 Chip R 1005 1 16W 100K OHMJ EDC128 AC ADAPTOR E R405...

Page 24: ...unbalanced Measuring range 0 1W to 1W 8 Audio Voltmeter Measurable frequency Up to 100kHz Sensitivity 1mV to 10V 9 Audio Generator Output frequency 67Hz to 10kHz Output impedance 600Ω unbalanced 10 Distortion Meter SINAD Meter Measurable frequency 1kHz Input level Up to 40dB Distortion level 1 to 100 11 Frequency Counter Measurable frequency Up to 500MHz Measurable stability Approx 0 1ppm 12 Linea...

Page 25: ...set on each channel before adjustments can be mode For instructions on how to program the channels see the DJ C7 INSTRUCTION MANUAL which came with the product In consideration of the radio environment the frequency on each channel must be near the value 1MHz listed in the table below To enter the adjustment mode set key lock and press BAND V M SCAN V M SCAN BAND and FUNC key Freq appears in LCD W...

Page 26: ...tion to 4 5kHz at the TX condition Frequency 145 03MHz 6 NFM AF output adjustment Display nAF Adjust point L42 Input 80dBu to the test unit which modulation is 1kHz 3 5kHz and adjust the L42 to maximum AF level Frequency 435 07MHz C7E Frequency 445 07MHz C7T 7 WFM AF output adjustment Display wAF Adjust point L40 Input 80dBu to the test unit which modulation is 1kHz 22 5kHz and adjust the L40 to m...

Page 27: ...put 10dBu which modulation is 3 5kHz and press the V M key Check the BEEP sound Frequency 435 07MHz C7E Frequency 445 07MHz C7T SQL MAX level adjustment Display SqL UH Adjust point V M key Input 2dBu which modulation is 3 5kHz and press the V M key Check the BEEP sound 13 UHF S meter adjustment S meter 1 level adjustment Display S UL Adjust point V M key Input 3dBu which modulation is 3 5kHz and p...

Page 28: ...key Check the BEEP sound Frequency 88 7MHz S meter 5 level Adjustment Display S wH Adjust point V M key Input 20dBu which modulation is 22 5kHz and press the V M key Check the BEEP sound 16 Low Battery Display Setting Display bAtt Adjust point V M key Set power supply voltage to 3 7V After that press the V M key Check the BEEP sound www ALINCO ru ...

Page 29: ...29 PC Board View MAIN Side A VCO CASE TS0174 ...

Page 30: ...30 MAIN Side B X2 No gap 1mm less than 1mm ...

Page 31: ...31 PC Board View KEY Side A MIC301 No gap ...

Page 32: ...32 KEY Side B ...

Page 33: ...33 BATTERY Side A BATTERY Side B PTT Side A B ROTARY ENCODER Side A B ...

Page 34: ...23T MIC301 R314 10K R309 39K 15K R312 R313 39K 10K R315 C310 15 4V 100 R332 VDZ5 1B D301 R316 0 001 1K R327 R325 1K R324 1K R322 1K R318 1K R317 1M R323 1M 82K R321 R320 82K C314 0 0015 C315 0 033 82K R319 0 033 C313 C312 0 1 SW304 SW305 SKQGAA SKQGAA SW303 SKQGAA SW302 SKQGAA SW301 SKQGAA FUNC POWER SCAN V M IC302 NJM2904V 100P R329 120K R328 C319 680K 1M R331 0 001 1 1 1 BSW BAT B CHG GND TO KEY...

Page 35: ...1 DATA CLK PT3 TBST C3C PO TUNC BAT TLC TIN SQL SMT PCNT BCHK BP1 NC OSCI OSCO VP VCC DO GND LD Fin CLK DATA LE FC Fout φP φR 0 001 EMD6 Q1 100K R9 47P 22 4V 100K R7 0 001 C23 0 001 C3 0 001 100P 330 R5 1u L2 0 1u 0 001 R4 1K D1 MA27111 1K 0 1u L1 2 2 10V 39n L5 39n L6 0 001 MA27077 NC 0 001 C13 2 2u C20 39P 27n C21 R3 220 0 001 L8 C25 330 R8 2SC5066FT Q5 10K R11 Q2 1P C29 680 R15 0 001 C30 2 2K R...

Page 36: ...W UHF VCO MOD LOOP FILTER Q4 2SC5066FT BUFFER D9 D10 D11 Q7 2SC5066FT 1SV279 Q1 EMD6 D1 MA27111 MA27077 D7 D28 HPF SPRIOU MUTE MA27077 MA2S357 2SC5066FT D14 D15 Q11 LOOP FILTER BUFFER 12 6MHz X1 UNLOCK SW DTA123JM Q8 XC62HR IC4 3302MR 2SC5066FT Q17 EMD3 IC6 COM0 COM3 SEG0 SEG25 SML 521MUW D33 DTA123JM Q23 Q40 LCD BP SW Q16 DTC144TM BD4930FVE IC13 X2 4 19MHz BR24L32FV W IC11 EEPROM CLONE D30 MA2772...

Page 37: ...hin Dai Building 9th Floor 2 6 1 Chome Dojimahama Kitaku Osaka 530 0004 Japan Phone 81 6 4797 2136 Fax 81 6 4797 2157 E mail export alinco co jp Copyright 2004 Alinco Inc Osaka Japan Printed in Japan PM0080 Dealer Distributor ...

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