Icom IC-T7H Скачать руководство пользователя страница 34

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• 1F UNIT

11 - 2

VCC2

R210
100

L203 3225

C207 18 P

C206
7 P

D351 MA2S077

D352 MA2S077

R354
22 k

C856
0.001

L801
0.1

R858
120

R315
220

R316
47

C316
0.001

C318
0.001

R314
6.8 k

VVCO3

Q305 2SC5108 Y

C324
0.001

R318
100

C315
2.5 P

R868
680

C862
0.1

R866
6.8 k

VLV

C864
1.5

R867
3.3 k

ULV

C861
0.001

C863
0.001

D304
MA2S077

C313
0.001

C322
0.001

R311 1 k

D303
MA304

R319
220 k

R320
220

C325
0.001

R312
6.8 k

L302
0.82

VLV

VSHIFT

USHIFT

ULV

MOD

USHIFT

MOD

L303
LA-509

C314
2.5 P

C304
2.5 P

Q304 2SC5108 Y

C312
27 P

J302
IMSA-9230B-1-05Z064-T

C317
0.001

R313
100

VCO3

C321
0.001

Q306
2SC5108 Y

LOOUT

C320
22 P

R317
47 k

C319
0.75 P

R321
100

R307
39

R306
39

R357
15

R355
33

LOOUT

VVCO3

UVCO3

GND

C857
0.001

C858
0.001

R356
15

VCO3

Q852
2SC4403 3

R859
22 k

1
2
3
4
5

J301
IMSA-9230B-1-
05Z064-T

Q703
2SD2216 S

Q351
2SC5107 O

C711
2.2

R709
4.7K

D702
MA133

C713
0.001

Q704
UN9211

TXC

+3C

Q702
2SB1132 R

D353
MA2S077

C350
0.001

R861
100

R352
1.5 k

D201
MA2S077

D701
MA2S077

C211

0.001

R203
4.7 k

R208
100

L201
0.82

C213
0.001

R201
100

L202
82 nH

R202
150

C212
0.001

R204
10

R205
15 K

C209
0.001

Q201 2SC3356 R25

L206
18 nH

C214
0.001

R207
4.7 k

C210
10

C403
0.001

Q401
2SK3074

C404
0.001

Q402
2SK3075

C407
0.001

L404
25 nH

C401
15 P

L403
3.3 nH

C405
27 P

R403
330

R402
47

L402
60 nH

R401
100

L401
12 nH

D202 MA2S077

C215
0.001

J202
IMSA-9230B-1-05Z003T

C216
0.001

GND

VOUT

C730
0.001

L205
0.82

D723
MA2S077

D724
MA2S077

L723
0.22

L724
0.22

D722
1SV271

UOUT

VCC2

VOUT

C411
0.001

C409
20 P

L406
0.40-1.1-3TL

L405
21 nH

C410
56 P

UOUT

R724
33

R721
10

C911
0.001

R284
33

1
2
3
4
5

J201 IMSA-9230B-1-05Z003T

C727
0.001

VCC1

R281
1 k

R282
100 k

C270
10

GND

C406
0.001

VGG2

VGG1

VCC1

GND

VGG1

VGG2

C402
0.001

MP401
2207 PA HEATSINK

PA
BOARD

C707
5 P

L703
18 nH

C717
5 P

C715
5 P

R704
10

R705
10 K

C709
0.001

L204
3225

L702
12 nH

C102
10

Q701
2SC3356 R25

R706
100

R710
47

Q203
UN9210

R209
4.7 k

Q705
2SA1588 GR

R701 4.7 k

D703
MA2S111

C716
0.001

R708
100

C714
0.001

R702
4.7 k

TXSEL

L701
15 nH

Q202
2SA1588 GR

C701
0.001

C323
0.001

C306
0.001

C305
0.001

C307
0.001

Q302
2SC5006

C308 0.75 P

R305
4.7 k

R304
68

DUAL VCO BOARD

D302
MA2S077

D301 HVU350

R302
2.2 k

Q301
2SC5006

L304
0.82

L301
LA-508

C303
2.5 P

C302
24 P

C301
27 P

R303
4.7 k

Q354
UN9210

R364
220 k

Q854 UN9210

C860
0.1

R363
220 k

C360
0.1

R362
150 k

R863 330 k

VMOD

SHIFT

UMOD

VSHIFT

R862
33 k

R864
47 k

C375
0.001

Q356
2SC4081 S

L355
0.82

L354
0.82

C378
7 P

C376
7 P

C377
3 P

C379
4 P

2NDLO

R371
330 k

C374
9 P

R372
100 k

C380
27 P

C311
0.001

R358
100

C855
22

C355
22

C865
0.001

C354
0.001

R250
0.15

D250
MA8030H

C235
0.001

C2360.001

C234
0.001

R251
68 k

R252
47 k

1
2
3
4

6
5

IC250
NJM2904M

R265
4.7 k

R261
1 M

R264
2.2 k

C254
0.001

R267
15 k

R263
10 k

Q255
2SB1462 R

C231
0.001

C232
0.001

C101
0.001

R262
22 k

R266
TBPS1R150K

C268
0.001

VGGC

R285
1 k

R283
100 k

C267
10

R278
10

C728
0.001

R727
150

C724
0.001

HC725

Q204
UN921L

R726
10 k

R1 150

C23
0.001

C24
0.001

L13
0.82

R728
47 k

C233
0.001

VCC

D251
MA8043 L

R258
15 k

R260
100

R259
10 k

Q253
DTC114TU

PSET

PREF

TXC

Q250
2SC4081

C859
0.001

C356
0.001

C359
0.001

C358
0.001

R361
47

C357
0.001

R360
220

R359
47 k

Q352
2SC5107 O

X851
CR-515

R365
330

C373
0.001

C372
0.001

C370
22 P

C371
39 P

L353
4.7

C851
0.1

C852
0.1

C369
20 P

VCC1

IN1

ENB

CLK

DATA

LOK

CP1

FI1

FO1

FO2

FI2

CP2

GND2

VCC2

IN2

GND1

IC851 UPD3140GS

R370
10 k

PLST
PLCK

R374 10 k

C366
47 P

C367
47 P

C368
47 P

L352 4.7

R367
1.5 k

R368
680

R366
10 k

C362
0.1

C361
0.001

R369
100 k

C365
0.001

C364
3.3

Q853
UN9115

Q355
2SK880 Y

VTUNE

HVCO

Q353
UN9115

Q357
UN9115

R373
47 k

D354
MA132WA

LVCO

C301
0.001

R350
1 k

R351
39

C351
0.001

J905
53264-0690

C554
0.001

800M

URF

GND

C553
8 P

D551
MA2S077

D552
MA2S077

C552
10 P

C8
2 P

C15
0.001

D1
MA2S077

D2
MA2S077

L9
16 nH

C14
4 P

C13 1.5 P

C551
7 P

L551
12 nH

L552
12 nH

C7
1 P

C6
1 P

L6
10 nH

L5
10 nH

L1
0.15

C2
100 P

C4
39 P

C12
9 P

L7
14 nH

C732
0.001

L2
21 nH

L3
30 nH

C1
8 P

C3
7 P

C5
15 P

C10
8 P

C11 0.5 P

C9 1 P

C21
15 P

C19
27P

C17
22P

C22
0.001

L10
39 nH

L11
60 nH

L12
47 nH

C16
2.5 P

C20
2 P

C18
5 P

R730
10

L725
0.22

D725
1SV271

R731
150

C734
0.001

C735
0.001

C733
47 P

R732
10 K

CHASSIS
UNIT

D52
MA2S077

D51
MA2S077

C53
12 P

C52
27 P

C51
22 P

L52
56 nH

L51
56 nH

C736
0.001

VRF

GND

EXTMIC
SPE

AFV
PSET

HVCO

TXSEL

REMOTE

DIUD
DICK

+3C

1
3
5
7
9
11
13
15
17
19
21
23
25
27
29 30

J904 IL-WX-30PB-VF84-B

AF
UMOD

VMOD
PLST

SHIFT
TXC

GND

PREF

BTVCC

EXTMIC

SPE

+3C

AFO

INTSP

J901
HSJ1102-01-540

C909
10

R902
390

C901
0.001

J903
HEC2711-01-020

C908
0.001

C905
0.001

C906
0.001

J902
HSJ1493-01-010

DIUD

DICK
AF
AFV

L900 3225

L901
3225

C907
0.001

C903
0.001

D901 RB060L-40

C910
10

C904
47 P

C900
0.001

VCC

C912
0.001

C914
0.001

C913
0.001

INTSP
AFO

VTUNE
LVCO

PLCK
PDA/UL
GND
2NDLO

PDA/UL

REMOTE

: COMMON

VT : VHF TX
UT : UHF TX
VR : VHF RX
UR : UHF RX

C412
10 P

VT: 0
VR: 3.4

UT: 3.5
UR: 0

UT: 1.80
UR: 0.77

UT: 0.69
UR: 0.69

UT: 2.30
UR: 2.30

UT: 1.80
UR: 1.80

VT: 0.72
VR: 0.72

VT: 1.94
VR: 1.94

C: 3.5

C: 3.0

VT: 0.7
UT: 0.75
VR: 0.7
UR: 0.8

C: 13.2

C: 0.65

VT: 1.39
VR: 1.39

C: 0.75

VT: 0.7
UT: 0.7
VR: 0.7
UR: 0.8

VT: 2.3
UT: 2.3
VR: 0
UR: 0

VT: 3.9
VR: 0

VT: 4.2
UT: 4.2
VR: 0
UR: 0

VT: 12.5
UT: 12.6
VR: 13.2
UR: 13.2

UT: 3.9
UR: 0

VT: 12.4
UT: 12.5
VR: 13.2
UR: 13.2

C: 2.82

Содержание IC-T7H

Страница 1: ...SERVICE MANUAL DUAL BAND FM TRANSCEIVIER...

Страница 2: ...IC T7H 1F UNIT 5pieces 8810008750 Screw PH BO 2 x 15 ZK IC T7H Chassis 10pieces Addresses are provided on the inside back cover for your convenience 1 Make sure a problem is internal before disassemb...

Страница 3: ...CIRCUITS 4 4 4 5 OTHER CIRCUITS 4 4 4 6 PORT ALLOCATIONS 4 5 SECTION 5 ADJUSTMENT PROCEDURES 5 1 PLL AND TRANSMITTER ADJUSTMENT 5 1 5 2 RECEIVER ADJUSTMENT 5 3 SECTION 6 PARTS LIST SECTION 7 MECHANICA...

Страница 4: ...174 MHz 1 136 MHz 174 MHz 1 400 MHz 470 MHz 3 F3 F2 5 ppm 5 10 12 5 15 20 25 30 or 50 kHz BNC 50 4 5 to 16 V DC 1 6 A typical 1 6 A typical 0 6 A typical 0 7 A typical 180 mA typical 190 mA typical 16...

Страница 5: ...UHF band pass filter FI201 EFCH445MWN UHF RF amplifier Q201 2SC4226 Located under side of these points AF power amplifier IC151 2SC5226 VHF RF amplifier Q51 2SC5226 1st IF filter FI401 FL244 2nd IF f...

Страница 6: ...n below REMOVING 2F UNIT 1 Unscrew 1 screw E from the 2F unit 2 Unsolder the point F then remove the 2F unit with the contact base Disconnect J1 on reverse side of the 2F unit to remove Rear panel C F...

Страница 7: ...imit ter D201 and are then amplified at the the RF amplifier Q201 The amplified signals are passed through the band pass filter FI201 and are then applied to another RF ampli fier Q202 The amplified s...

Страница 8: ...etects the signal level from the number of the pulses and outputs an MM RM signal from IC1 pin 44 on LOGIC unit This signal controls the AF mute switch LOGIC unit Q10 to cut the AF signal line 4 2 TRA...

Страница 9: ...2 and Q204 are turned ON The signal passes through the low pass L7 L9 C9 C15 and high pass L1 L3 C1 C5 filters and is then applied to the antenna connector The high pass filter sup presses low harmoni...

Страница 10: ...ltage is supplied to the 3C R3 and T4 regulator circuits etc Common 3 V converted from the VCC line by the 3C regulator circuit LOGIC unit Q4 Q5 Q40 and D3 using the 3CPU regulator LOGIC unit IC2 3 V...

Страница 11: ...ow POWER switch is pushed Outputs LCD contrast control signals Input port for key matrix Input port for the PTT control circuit HIGH When transmitting Input port for reset circuit LOGIC unit IC3 pin 1...

Страница 12: ...as HPF OFF LPF 20 kHz De emphasis OFF Detector P P 2 Output power High Transmitting Displayed frequency 445 000 MHz USA 3 435 000 MHz Other Output power High Transmitting Displayed frequency 445 000...

Страница 13: ...QUENCY COUNTER 100 MHz 500 MHz 1F UNIT 2F UNIT RF POWER METER 10 W 50 FREQUENCY COUNTER 100 MHz 500 MHz R302 R304 VHF output power adjustment High UHF output power adjustment High ATTENUATOR 40 or 50...

Страница 14: ...dBm Modulation 1 kHz Deviation 3 5 kHz Pre set the R504 to maxmum CW Receiving Displayed frequency 443 000 MHz USA 3 433 000 MHz Other Connect an SSG to the antenna connector and set as Level 0 5 V 1...

Страница 15: ...R SSG 100 500 MHz 127 to 17 dBm 0 1 V to 32 mV CAUTION DO NOT transmit while the signal generator is connected L102 CP1 UHF sensitivity adjustment UHF sensitivity check point L53 L54 L55 VHF sensitivi...

Страница 16: ...F15NK L702 6200005830 S COIL NLH252018T 012J 12N L703 6200004380 S COIL LL1608 F18NK L723 6200008080 S COIL LQN21A R22J04 L724 6200008080 S COIL LQN21A R22J04 L725 6200008080 S COIL LQN21A R22J04 L801...

Страница 17: ...S CERAMIC C1005 JB 1E 102K T A C358 4030009810 S CERAMIC C1005 JB 1E 102K T A C359 4030009810 S CERAMIC C1005 JB 1E 102K T A C360 4030011600 S CERAMIC C1608 JB 1C 104KT N C361 4030009810 S CERAMIC C10...

Страница 18: ...009780 S CERAMIC C1005 CH 1E 270J T A C302 4030010080 S CERAMIC C1005 CH 1E 240J T A C303 4030011670 S CERAMIC C1005 CH 1E 2R5B T A C304 4030011670 S CERAMIC C1005 CH 1E 2R5B T A C305 4030009810 S CER...

Страница 19: ...17 7030005240 S RESISTOR ERJ2GEJ 473 X 47 k R118 7030005120 S RESISTOR ERJ2GEJ 102 X 1 k R119 7030004980 S RESISTOR ERJ2GEJ 101 X 100 R120 7030005220 S RESISTOR ERJ2GEJ 223 X 22 k R121 7030005240 S RE...

Страница 20: ...30009810 S CERAMIC C1005 JB 1E 102K T A C406 4030009810 S CERAMIC C1005 JB 1E 102K T A C407 4030009810 S CERAMIC C1005 JB 1E 102K T A C408 4030009760 S CERAMIC C1005 CH 1E 150J T A C409 4030009810 S C...

Страница 21: ...RJ3GEYJ 104 V 100 k R219 7030003840 S RESISTOR ERJ3GEYJ 225 V 2 2 M R220 7030003560 S RESISTOR ERJ3GEYJ 103 V 10 k R221 7030005520 S RESISTOR RR0816R 334 D 330 k R222 7030005970 S RESISTOR RR0816R 683...

Страница 22: ...1005 JB 1E 102K T A C208 4030009810 S CERAMIC C1005 JB 1E 102K T A C209 4030009810 S CERAMIC C1005 JB 1E 102K T A C210 4030009810 S CERAMIC C1005 JB 1E 102K T A C211 4030009810 S CERAMIC C1005 JB 1E 1...

Страница 23: ...PARTS REF NO ODER NO DESCRIPTION QTY J901 6450000130 Connector HSJ1102 01 540 MIC 1 J902 6450001060 Connector HSJ1493 01 010 SP 1 J903 6450000870 Connector HEC2711 01 020 DC13 5V 1 S1 7600000190 Encod...

Страница 24: ...MP1 C MP8 C MP9 C MP21 C MP13 C MP13 C MP13 C MP12 C MP29 C MP1 1F MP2 1F J902 1F S1 1F J903 1F MP301 D J901 1F MP19 C MP24 C MC1 L W1 L J1 C J1 C LOGIC UNIT MP11 L SP1 L MP12 L MP13 L MP15 C MP401 P...

Страница 25: ...mbol R25 2SC4228 R45 Symbol R45 2SC4403 3 Symbol LY3 2SB1132 R Symbol BARB 2SB1201 S Symbol B1201 2SB1462 R Symbol BR 2SC3356 R25 Symbol R25 TRANSISTOR AND FET S S D G B E C B E C B1 E B2 C1 C2 E1 E2...

Страница 26: ...SECTION 9 BOARD LAYOUTS 9 1 DS1 DS4 MC1 DS3 DS2 C91 C92 C93 S1 C81 C80 C83 C82 9 1 LOGIC UNIT TOP VIEW...

Страница 27: ...C157 D19 C207 R207 Q4 C141 Q12 Q10 Q40 C208 R12 C19 C15 C169 C170 C180 Q45 C172 C178 R216 R240 R215 R213 R214 R242 R187 C179 C181 C154 R181 R186 C206 R241 R211 C171 D3 IC13 IC12 HD17 D13 D16 D7 D14 C1...

Страница 28: ...Q305 R306 MOD S B5216A C414 C415 C922 FI101 800 300 AF MOD EXTMIC SPE INTSP AFON PLST PLCK PDA UL REMOTE DICK DIUD AM UR3 VR3 LVCO 3C HVCO TXC SHIFT VCC H L TXSEL DETO NOISE SD GND GND 30 1 TO LOGIC U...

Страница 29: ...117 R116 R118 R119 R122 C121 C12 Q104 Q102 C124 C923 Q103 Q105 C106 D402 D401 C11 Q4 Q5 C123 C126 R5 C122 C413 C406 C406 C405 R408 R406 C402 C400 R612 R402 C416 C67 C65 R59 C63 C61 R101 R102 R110 R112...

Страница 30: ...C380 R374 C376 C377 C379 C378 L355 Q356 L353 C554 C553 R210 D552 D201 D51 D351 D52 VRF GND GND 800M GND URF C101 Q253 C910 C102 S1 J904 J904 L900 1 C861 R362 R363 R863 R862 J903 C865 UOUT GND VOUT GN...

Страница 31: ...C7 IC250 C371 C370 C904 C906 R365 C8 D1 C551 C15 C13 C14 C552 D551 C5 C4 C2 C3 C9 L2 L7 L8 L9 L724 L723 L551 L3 C10 C12 R728 R721 C724 C728 R726 R727 C911 C730 C727 R724 R262 R267 C214 R704 R708 R278...

Страница 32: ...3 IC151 TA7368F 2F UNIT TO BATT VCC Q10 2SJ364 Q12 XP6501 CTCIN R3 5 IC13 NJM2904M IC12 BA4510F VCC R3 REG 3C 3C VCC MIC AMP MUTE SW IC12 BA4510F Q31 UN9211 D901 RB060L 40 HV REVERS VOLT PROTECT MC1 E...

Страница 33: ...C201 0 001 C202 0 001 C216 0 001 C217 0 001 R216 1 M R211 470 k R215 82 k R214 82 k R213 82 k 1 5 6 7 8 IC13 NJM2904M R241 100 k C181 0 01 C180 0 1 C172 0 1 R219 2 2 M C173 0 0022 C169 0 0015 C170 0 1...

Страница 34: ...R250 0 15 D250 MA8030H C235 0 001 C2360 001 C234 0 001 R251 68 k R252 47 k 1 2 3 4 6 5 7 8 IC250 NJM2904M R265 4 7 k R261 1 M R264 2 2 k C254 0 001 R267 15 k R263 10 k Q255 2SB1462 R C231 0 001 C232...

Страница 35: ...1 MA2S077 C56 0 001 R51 68 k D52 MA304 Q51 2SC5226 4 C58 0 001 R52 100 k C59 0 001 R53 68 L53 LS 518 VRF C55 0 001 C54 10 P D55 1SV271 C69 9 P C57 12 P R57 33 k C60 0 001 R56 10 k R55 330 R54 100 Q52...

Страница 36: ...Australia Phone 03 9387 0666 Fax 03 9387 0022 Unit 9 Sea St Herne Bay Kent CT6 8LD U K Phone 01227 741741 Fax 01227 741742 URL http www icomuk co uk Zac de la Plaine Rue Brindejonc des Moulinais BP 58...

Страница 37: ...6 9 16 Kamihigashi Hirano ku Osaka 547 0002 Japan A 5551I S Printed in Japan 1998 by Icom Inc...

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