Icom IC-A25N Service Manual Download

Page: 9 / 90

Eqv.= This component is equivalent to the REF No. component listed above,

and may be substituted on parts orders and repairs.

M.= Mounted side (T: Mounted on the Top side, B: Mounted on the Bottom side)

H/V LOCATION=See the BOARD LAYOUTS for details.

(Amended page)

REF

NO.

PART

NO.

DESCRIPTION

H/V

LOCATION

REF

NO.

PART

NO.

DESCRIPTION

H/V

LOCATION

March 2019

5-1a

R65

7030016040 S.RES RMC1/16S-224JTH (220 k) [#11] B

9.2/6.6

7030016040 S.RES RMC1/16S-224JTH (220 k) [#12]

R66

7030016040 S.RES RMC1/16S-224JTH (220 k) [#11] B

9.2/5.7

7030016040 S.RES RMC1/16S-224JTH (220 k) [#12]

R67

7030015970 S.RES RMC1/16S-103JTH (10 k) [#11] B

5.9/10.2

7030015970 S.RES RMC1/16S-103JTH (10 k) [#12]

R68

7030016200 S.RES RMC1/16S-274JTH (270 k) [#11] B

5.9/11.8

7030016200 S.RES RMC1/16S-274JTH (270 k) [#12]

R69

7030016360 S.RES RMC1/16S-123JTH (12 k) [#11] B

2.8/14.3

7030016360 S.RES RMC1/16S-123JTH (12 k) [#12]

R72

7030015960 S.RES RMC1/16S-472JTH (4.7 k) [#11] B

9.9/15.3

7030015960 S.RES RMC1/16S-472JTH (4.7 k) [#12]

R73

7030015960 S.RES RMC1/16S-472JTH (4.7 k) [#11] B 21.7/24.9

7030015960 S.RES RMC1/16S-472JTH (4.7 k) [#12]

R74

7030016040 S.RES RMC1/16S-224JTH (220 k) [#11] B 21.7/24.0

7030016040 S.RES RMC1/16S-224JTH (220 k) [#12]

R75

7030016110 S.RES RMC1/16S-473JTH (47 k) [#11] B 23.7/24.0

7030016110 S.RES RMC1/16S-473JTH (47 k) [#12]

R76

7030016110 S.RES RMC1/16S-473JTH (47 k) [#11] B 22.7/26.4

7030016110 S.RES RMC1/16S-473JTH (47 k) [#12]

R77

7030016040 S.RES RMC1/16S-224JTH (220 k) [#11] B 24.8/25.0

7030016040 S.RES RMC1/16S-224JTH (220 k) [#12]

R78

7030015960 S.RES RMC1/16S-472JTH (4.7 k) [#11] B 26.5/25.5

7030015960 S.RES RMC1/16S-472JTH (4.7 k) [#12]

R79

7030016120 S.RES RMC1/16S-682JTH (6.8 k) [#11] B 24.8/13.4

7030016120 S.RES RMC1/16S-682JTH (6.8 k) [#12]

R80

7030016030 S.RES RMC1/16S-154JTH (150 k) [#11] B 26.0/15.4

7030016030 S.RES RMC1/16S-154JTH (150 k) [#12]

R81

7030016290 S.RES RMC1/16S-222JTH (2.2 k) [#11] B 23.9/15.0

7030016290 S.RES RMC1/16S-222JTH (2.2 k) [#12]

R82

7030015960 S.RES RMC1/16S-472JTH (4.7 k) [#11] B 26.4/13.3

7030015960 S.RES RMC1/16S-472JTH (4.7 k) [#12]

R83

7030016040 S.RES RMC1/16S-224JTH (220 k) [#11] B 22.4/15.3

7030016040 S.RES RMC1/16S-224JTH (220 k) [#12]

R84

7030015960 S.RES RMC1/16S-472JTH (4.7 k) [#11] B 16.6/18.5

7030015960 S.RES RMC1/16S-472JTH (4.7 k) [#12]

R85

7030016360 S.RES RMC1/16S-123JTH (12 k) [#11] B 14.4/21.3

7030016360 S.RES RMC1/16S-123JTH (12 k) [#12]

R86

7030016560 S.RES RMC1/16SJPTH

[#11] B 15.3/21.3

7030016560 S.RES RMC1/16SJPTH

[#12]

R88

7030016000 S.RES RMC1/16S-823JTH (82 k) [#11] B 18.2/23.5

7030016000 S.RES RMC1/16S-823JTH (82 k) [#12]

R91

7030016100 S.RES RMC1/16S-334JTH (330 k) [#11] B 23.0/10.4

7030016100 S.RES RMC1/16S-334JTH (330 k) [#12]

R93

7030016070 S.RES RMC1/16S-474JTH (470 k) [#11] B 21.5/14.4

7030016070 S.RES RMC1/16S-474JTH (470 k) [#12]

R94

7030016450 S.RES RMC1/16S-824JTH (820 k) [#11] B 23.0/13.7

7030016450 S.RES RMC1/16S-824JTH (820 k) [#12]

R95

7030016090 S.RES RMC1/16S-223JTH (22 k) [#11] B 19.2/13.0

7030016090 S.RES RMC1/16S-223JTH (22 k) [#12]

R112

7030016320 S.RES RMC1/16S-225JTH (2.2 M) [#11] B

16.7/11.0

7030016320 S.RES RMC1/16S-225JTH (2.2 M) [#12]

R145

7030016060 S.RES RMC1/16S-105JTH (1 M)

2.2/13.8

R146

7030016060 S.RES RMC1/16S-105JTH (1 M)

2.7/14.8

R147

7030016060 S.RES RMC1/16S-105JTH (1 M)

5.6/13.8

R148

7030016060 S.RES RMC1/16S-105JTH (1 M)

4.1/9.3

R151

7510001661 S.THR NTCG16 4LH 473JT

34.8/24.7

R152

7030008270 S.RES RR0510P-104-D (100 k)

36.8/25.5

R558

7030016360 S.RES RMC1/16S-123JTH (12 k) [#11] B

21.5/9.8

7030016360 S.RES RMC1/16S-123JTH (12 k) [#12]

R595 7030015520 S.RES RMC1/16JPTP

B 28.0/32.2

R856

7030015900 S.RES RMC1/16S-470JTH (47)

[#11] B 19.2/88.3

7030015900 S.RES RMC1/16S-470JTH (47)

[#12]

R857 7030016560 S.RES RMC1/16SJPTH

[#11] B 18.8/85.4

7030016560 S.RES RMC1/16SJPTH

[#12]

R858 7030016560 S.RES RMC1/16SJPTH

[#11] B 21.5/79.2

7030016560 S.RES RMC1/16SJPTH

[#12]

R859 7030016560 S.RES RMC1/16SJPTH

[#11] B 28.7/86.5

7030016560 S.RES RMC1/16SJPTH

[#12]

R860

7030016020 S.RES RMC1/16S-104JTH (100 k) [#11] B 28.7/87.4

7030016020 S.RES RMC1/16S-104JTH (100 k) [#12]

R861

7030016020 S.RES RMC1/16S-104JTH (100 k) [#11] B 29.7/97.1

7030016020 S.RES RMC1/16S-104JTH (100 k) [#12]

R862 7030016560 S.RES RMC1/16SJPTH

[#11] B 28.9/98.0

7030016560 S.RES RMC1/16SJPTH

[#12]

R863 7030016560 S.RES RMC1/16SJPTH

[#11] T 22.8/16.1

7030016560 S.RES RMC1/16SJPTH

[#12]

R864

7030016110 S.RES RMC1/16S-473JTH (47 k) [#11] B 40.1/16.4

7030016110 S.RES RMC1/16S-473JTH (47 k) [#12]

R865

7030016110 S.RES RMC1/16S-473JTH (47 k) [#11] B 38.5/15.3

7030016110 S.RES RMC1/16S-473JTH (47 k) [#12]

R866

7030016020 S.RES RMC1/16S-104JTH (100 k) [#11] T

21.9/17.9

7030016020 S.RES RMC1/16S-104JTH (100 k) [#12]

R867

7030016020 S.RES RMC1/16S-104JTH (100 k) [#11] B 40.1/12.9

7030016020 S.RES RMC1/16S-104JTH (100 k) [#12]

R868

7030016110 S.RES RMC1/16S-473JTH (47 k) [#11] B 40.1/14.1

7030016110 S.RES RMC1/16S-473JTH (47 k) [#12]

R869

7030016110 S.RES RMC1/16S-473JTH (47 k) [#11] B 40.1/15.3

7030016110 S.RES RMC1/16S-473JTH (47 k) [#12]

R871

7030015970 S.RES RMC1/16S-103JTH (10 k) [#11] B

36.3/11.8

7030015970 S.RES RMC1/16S-103JTH (10 k) [#12]

R873

7030016050 S.RES RMC1/16S-102JTH (1 k)

[#11] B

38.7/8.4

7030016050 S.RES RMC1/16S-102JTH (1 k)

[#12]

R874

7030016190 S.RES RMC1/16S-273JTH (27 k) [#11] B

39.0/2.4

7030016190 S.RES RMC1/16S-273JTH (27 k) [#12]

IC1

1190004712 S.IC HRM1016-010022

[#11] T 37.3/13.5

1190004712 S.IC

HRM1016-010022

[#12]

IC11

1110003790 S.IC NJM2903V-TE1-#FMZB

[#11] B 17.6/8.1

1110003790 S.IC

NJM2903V-TE1-#FMZB

[#12]

IC12

1110006470 S.IC LMV324IPWR

[#11] B 24.1/19.7

1110006470 S.IC

LMV324IPWR

[#12]

IC13

1110006740 S.IC LMV358IPWR

[#11] B 8.4/11.0

1110006740 S.IC

LMV358IPWR

[#12]

IC17

1190004620 S.IC GSU-141A-098A

[#11] B 23.8/85.9

1190004620 S.IC

GSU-141A-098A

[#12]

IC27

1140018060 S.IC R5F52108BDLK

B 31.0/52.9

IC30

1180004760 S.REG S-1200B33-M5T1U

[#11] T 18.2/10.2

1180004760 S.REG S-1200B33-M5T1U

[#12]

IC31

1180004760 S.REG S-1200B33-M5T1U

[#11] B 32.5/96.5

1180004760 S.REG S-1200B33-M5T1U

[#12]

IC32

1110006490 S.IC LMV321IDCKR

[#11] B 38.6/5.1

1110006490 S.IC

LMV321IDCKR

[#12]

IC34

1180003570 S.REG NJM2830U1-33-TE1-#ZZZB

B 39.7/44.0

IC35

1130014260 S.IC SN74LVC2GU04DCKR

B 29.0/13.8

IC36

1130014260 S.IC SN74LVC2GU04DCKR

B 40.9/31.9

IC37

1130016621 S.IC GT24C128B-2ZLI-TR

B 31.3/68.1

IC38

1110007780 S.IC NJU7704F3-28A-TE1-#ZZZH

B 22.4/67.7

IC39

1110007780 S.IC NJU7704F3-28A-TE1-#ZZZH

[#11] T 22.1/13.2

1110007780 S.IC

NJU7704F3-28A-TE1-#ZZZH

[#12]

IC40

1180005110 S.REG NJM2836DL3-05-TE1

B 31.8/35.9

IC41

1180003460 S.REG NJM2831F05-TE1-#ZZZB

B 29.1/64.5

1530004190 S.TRA L2SC4617ST1G

B 24.9/72.7

1590004070 S.TRA LDTC144EET1G

[#11] T 36.3/21.2

1590004070 S.TRA LDTC144EET1G

[#12]

Q13

1530004140 S.TRA L2SC4081RT1G

[#11] B 21.1/12.6

1530004140 S.TRA L2SC4081RT1G

[#12]

Q15

1590004530 S.TRA DMG564050R

[#11] B 24.9/29.6

1590004530 S.TRA DMG564050R

[#12]

Q16

1590004070 S.TRA LDTC144EET1G

[#11] B 40.5/11.3

1590004070 S.TRA LDTC144EET1G

[#12]

Q17

1590004070 S.TRA LDTC144EET1G

[#11] T 19.9/17.9

1590004070 S.TRA LDTC144EET1G

[#12]

Q22

1530004000 S.TRA 2SC4738-GR (TE85LF)

B 32.4/14.2

Q23

1510001100 S.TRA 2SA1832-GR (TE85RF)

B 28.1/17.0

Q24

1510001100 S.TRA 2SA1832-GR (TE85RF)

B 40.8/28.5

Q25

1560001730 S.FET RUE002N02 TL

B 35.8/29.7

Q31

1510001100 S.TRA 2SA1832-GR (TE85RF)

14.7/13.5

Q32

1510001100 S.TRA 2SA1832-GR (TE85RF)

13.4/18.5

Q33

1590004070 S.TRA LDTC144EET1G

T 17.2/7.4

Q34

1590004070 S.TRA LDTC144EET1G

T 14.8/15.5

1750001810 S.DIO L1SS400T1G

T 5.4/19.4

1750002220 S.DIO DA6J101K0R

T 3.4/16.6

1750001810 S.DIO L1SS400T1G

[#21] T 3.9/12.1

1750001810 S.DIO L1SS400T1G

[#22]

1750001810 S.DIO L1SS400T1G

[#31]

1750001810 S.DIO L1SS400T1G

[#12] B 11.2/56.2

1750001810 S.DIO L1SS400T1G

[#22]

1750001810 S.DIO L1SS400T1G

B 32.5/72.5

D16

1750001810 S.DIO L1SS400T1G

[#11] B 13.2/6.8

1750001810 S.DIO L1SS400T1G

[#12]

D17

1750001810 S.DIO L1SS400T1G

[#11] B 17.5/12.6

1750001810 S.DIO L1SS400T1G

[#12]

D18

1750001790 S.DIO 1SS390 TE61

B 40.7/57.6

D34

1750001810 S.DIO L1SS400T1G

B 26.3/36.4

D35

1750001810 S.DIO L1SS400T1G

B 45.0/44.6

D46

1750001810 S.DIO L1SS400T1G

[#11] T 17.8/12.6

1750001810 S.DIO L1SS400T1G

[#12]

D47

1750001810 S.DIO L1SS400T1G

B 32.5/17.4

D48

1750001810 S.DIO L1SS400T1G

B 36.0/28.1

6050013790 S.XTA CR-981 (19.6608 MHz)

B 39.7/53.9

7030015910 S.RES RMC1/16S-101JTH (100)

[#11] B

33.6/8.2

7030015910 S.RES RMC1/16S-101JTH (100) [#12]

7030016020 S.RES RMC1/16S-104JTH (100 k)

B 23.5/70.8

R16

7030016020 S.RES RMC1/16S-104JTH (100 k)

B 22.6/70.8

R17

7030015970 S.RES RMC1/16S-103JTH (10 k)

B 26.9/73.2

R18

7030015970 S.RES RMC1/16S-103JTH (10 k)

B 28.3/71.6

R25

7030016160 S.RES RMC1/16S-820JTH (82)

11.0/35.2

R26

7030016160 S.RES RMC1/16S-820JTH (82)

22.0/35.2

R28

7030016560 S.RES RMC1/16SJPTH

[#11] B 31.8/8.2

7030016560 S.RES RMC1/16SJPTH

[#12]

R60

7030016340 S.RES RMC1/16S-393JTH (39 k) [#11] B

22.0/8.4

7030016340 S.RES RMC1/16S-393JTH (39 k) [#12]

R61

7030016110 S.RES RMC1/16S-473JTH (47 k) [#11] B

13.3/8.8

7030016110 S.RES RMC1/16S-473JTH (47 k) [#12]

R62

7030016020 S.RES RMC1/16S-104JTH (100 k) [#11] B

12.2/8.4

7030016020 S.RES RMC1/16S-104JTH (100 k) [#12]

R63

7030016330 S.RES RMC1/16S-153JTH (15 k) [#11] B

11.0/2.3

7030016330 S.RES RMC1/16S-153JTH (15 k) [#12]

R64

7030015960 S.RES RMC1/16S-472JTH (4.7 k) [#11] B

4.5/9.2

7030015960 S.RES RMC1/16S-472JTH (4.7 k) [#12]

PARTS LIST

[LOGIC UNIT] (for #11, #12, #21, #22, and #31)

The underlined parts have been updated from the previous version of the addendum, or the original page.

Summary of Contents for IC-A25N

Page 1: ...The page to replace the original one Addendum page The page to be added to the original set Amended page The page to be added as change history including corrections VERSION LIST MODEL VERSION VERSIO...

Page 2: ...85 Mod input level 3 dB Ham and noise ratio More than 35 dB Microphone impedance 150 RECEIVER Receive system Double Conversion Superheterodyne Intermediate frequencies 1st 46 35 MHz 2nd 450 kHz Sensi...

Page 3: ...ation below AC millivoltmeter Measuring range 10 mV to 10 V Attenuator Power attenuation 30 40 dB Capacity More than 10 W VOR tester Frequency range 108 118 MHz Output level 20 dB to 90 dB 127 to 17 d...

Page 4: ...nd then turn the power ON 5 Read the transceiver data into the PC 6 Save the cloning data of the transceiver with the programming software 7 Set Adjust Mode in the EXPERT to Enable Click Select Enable...

Page 5: ...previous adjustment item Rotate DIAL to set or modify the adjustment value Push ENT to store the adjusted value and select the next adjustment item DIAL ENT WRITE THE CLONING DATA After adjusting wri...

Page 6: ...C power supply Attach the fully charged battery pack Connect the modulation analyzer to the antenna connector through the attenuator and set it to HPF OFF LPF 20 kHz De emphasis OFF Detector P P 2 Con...

Page 7: ...Frequency 136 975 MHz Transmitting 4 028 EXT 8MML Frequency 118 005 MHz Transmitting USA EXP 80 2 EUR AUS 90 2 5 029 EXT 8MMM Frequency 127 505 MHz Transmitting 6 030 EXT 8MMH Frequency 136 980 MHz T...

Page 8: ...matic adjustment 2 051 WSC_S Set the SSG to Level 13 dB 120 dBm 3 052 WSO_T Set the SSG to Level 13 dB 94 dBm 4 053 WSC_T Set the SSG to Level 10 dB 97 dBm Narrow 5 054 NSO_S Frequency 118 030 MHz Rec...

Page 9: ...30016020 S RES RMC1 16S 104JTH 100 k 11 B 40 1 12 9 7030016020 S RES RMC1 16S 104JTH 100 k 12 R868 7030016110 S RES RMC1 16S 473JTH 47 k 11 B 40 1 14 1 7030016110 S RES RMC1 16S 473JTH 47 k 12 R869 70...

Page 10: ...1 3 42 9 R1000 7030014400 S RES MCR006YZPJ 100 10 B 26 0 42 5 R1001 7030014400 S RES MCR006YZPJ 100 10 B 26 7 42 5 R1002 7030014400 S RES MCR006YZPJ 100 10 B 26 9 47 9 R1003 7030014400 S RES MCR006YZP...

Page 11: ...2 C649 4030022540 S CER 0402N3R0B500CT 11 T 23 6 18 8 4030022540 S CER 0402N3R0B500CT 12 C650 4030023010 S CER 0402B104K160CT 11 B 40 4 5 5 4030023010 S CER 0402B104K160CT 12 C651 4030019560 S CER GRM...

Page 12: ...90001622 S DIO 1SV308L3F B 11 8 108 5 D15 1720000702 S VAR 1SV305H3F B 31 2 102 2 D16 1720000702 S VAR 1SV305H3F B 30 3 99 5 D17 1750001790 S DIO 1SS390 TE61 B 13 7 55 8 D18 1750002170 S DIO DB2S31400...

Page 13: ...16750 S RES RMC1 16SK124DTH 120 k T 17 3 109 4 R210 7030016560 S RES RMC1 16SJPTH B 33 3 23 2 R211 7030016390 S RES RMC1 16S 184JTH 180 k B 28 0 58 0 R212 7030016110 S RES RMC1 16S 473JTH 47 k B 27 8...

Page 14: ...79 1 R607 7030015960 S RES RMC1 16S 472JTH 4 7 k T 18 9 78 3 R608 7030016050 S RES RMC1 16S 102JTH 1 k T 20 3 6 8 R609 7030015970 S RES RMC1 16S 103JTH 10 k T 18 4 9 4 R610 7030015970 S RES RMC1 16S 1...

Page 15: ...CER 0402B103K250CT B 27 3 94 7 C327 4030023090 S CER 0402B102K500CT B 28 7 103 3 C328 4030023090 S CER 0402B102K500CT B 26 9 101 1 C329 4030022530 S CER 0402N2R0B500CT B 21 2 104 9 C330 4030023030 S...

Page 16: ...91 6 C613 4030023090 S CER 0402B102K500CT T 22 1 100 3 C614 4030023010 S CER 0402B104K160CT T 25 7 92 4 C615 4030023010 S CER 0402B104K160CT T 23 9 97 1 C616 4030023090 S CER 0402B102K500CT T 24 8 92...

Page 17: ...29 4 73 2 D8 1750001810 S DIO L1SS400T1G B 32 5 72 5 D16 1750001810 S DIO L1SS400T1G 13 B 13 2 6 8 1750001810 S DIO L1SS400T1G 14 1750001810 S DIO L1SS400T1G 16 1750001810 S DIO L1SS400T1G 17 D17 175...

Page 18: ...7030016020 S RES RMC1 16S 104JTH 100 k 16 7030016020 S RES RMC1 16S 104JTH 100 k 17 R862 7030016560 S RES RMC1 16SJPTH 13 B 28 9 98 0 7030016560 S RES RMC1 16SJPTH 14 7030016560 S RES RMC1 16SJPTH 16...

Page 19: ...100 10 B 33 2 60 1 R1030 7030014400 S RES MCR006YZPJ 100 10 B 28 5 62 4 R1031 7030014390 S RES MCR006YZPJ 102 1 k B 44 3 55 4 R1032 7030014400 S RES MCR006YZPJ 100 10 B 36 8 57 8 R1033 7030014400 S RE...

Page 20: ...106MAABMA 16 4550007520 S TAN F931A106MAABMA 17 C155 4030023090 S CER 0402B102K500CT T 11 8 2 4 C156 4030023090 S CER 0402B102K500CT T 13 5 10 5 C157 4030023090 S CER 0402B102K500CT T 13 7 4 0 C158 40...

Page 21: ...4030020000 S CER C1005 JB 1A 105K T B 31 3 65 3 C715 4030023820 S CER 0603B104K250CT B 26 7 63 6 C716 4030023210 S CER 0402B472K500CT B 34 1 64 8 C717 4030023210 S CER 0402B472K500CT B 26 9 58 1 C718...

Page 22: ...1SV305H3F B 19 9 103 3 D14 1790001622 S DIO 1SV308L3F B 11 8 108 5 D15 1720000702 S VAR 1SV305H3F B 31 2 102 2 D16 1720000702 S VAR 1SV305H3F B 30 3 99 5 D17 1750001790 S DIO 1SS390 TE61 B 13 7 55 8...

Page 23: ...16S 821JTH 820 B 24 5 47 1 R140 7030016020 S RES RMC1 16S 104JTH 100 k B 29 7 23 2 R142 7030015640 S RES RMC1 10JPTP T 18 5 31 3 R145 7030005820 S RES RR0510P 103 D 10 k B 21 0 27 9 R147 7030005950 S...

Page 24: ...RMC1 16SJPTH T 23 5 63 6 R559 7030016560 S RES RMC1 16SJPTH T 21 0 61 1 R561 7030016560 S RES RMC1 16SJPTH T 27 7 62 1 R562 7030016560 S RES RMC1 16SJPTH T 28 4 60 0 R563 7030016380 S RES RMC1 16S 183...

Page 25: ...J500CT B 42 8 75 6 C400 4030022640 S CER 0402N101J500CT B 41 2 74 1 C401 4030022550 S CER 0402N4R0B500CT B 41 2 75 5 C402 4030022880 S CER 0402N560J500CT B 40 3 74 1 C403 4030023090 S CER 0402B102K500...

Page 26: ...15 9 9 5 C544 4030023090 S CER 0402B102K500CT T 13 0 6 6 C548 4030022930 S CER 0402N821J500CT 13 B 8 0 35 4 4030022930 S CER 0402N821J500CT 14 4030022930 S CER 0402N821J500CT 23 4030022930 S CER 0402...

Page 27: ...2B104K160CT T 34 3 22 5 C667 4030023090 S CER 0402B102K500CT B 14 0 15 0 C668 4030023090 S CER 0402B102K500CT B 12 0 18 7 C669 4030023090 S CER 0402B102K500CT B 13 9 24 2 C670 4030023090 S CER 0402B10...

Page 28: ...11 1 8930083700 DOUBLE SIDE TAPE BM 12 1 8930083700 DOUBLE SIDE TAPE BM 13 1 8930083700 DOUBLE SIDE TAPE BM 14 1 8930083700 DOUBLE SIDE TAPE BM 16 1 8930083700 DOUBLE SIDE TAPE BM 17 1 MP34 8810011050...

Page 29: ...4 1 BP 289 31 1 BP 289 36 1 MP1 MB 133 1 REF NO PART NO DESCRIPTION QTY DS5 5030004360 TM128160D1CIWUGND 1 S23 2260003320 SKRTLAE010 1 S24 2260003320 SKRTLAE010 1 S25 2260003320 SKRTLAE010 1 MP1 85100...

Page 30: ...SSIS 8930068980 MP32 CHASSIS Refere to the parts list MP34 CHASSIS 11 8810011050 MP35 CHASSIS 8810009181 MP36 CHASSIS 8810009511 MP37 CHASSIS 6 8810011050 MP38 CHASSIS 2 8810010850 MP39 CHASSIS 881001...

Page 31: ...EP16 EP19 IC1 IC30 IC39 J2 J4 Q5 Q17 Q31 Q32 Q33 Q34 R145 R146 R147 R148 R151 R152 R863 R866 R876 R878 R917 R920 R947 R949 R952 R963 R1053 R1054 R1055 R1056 R1060 R1063 R1064 R1065 R1066 R1067 R1068 R...

Page 32: ...9 R871 R873 R874 R875 R879 R881 R882 R883 R884 R885 R886 R887 R888 R901 R902 R903 R906 R907 R908 R909 R910 R911 R912 R913 R914 R925 R926 R927 R928 R929 R930 R931 R932 R933 R934 R935 R937 R940 R943 R94...

Page 33: ...IC220 IC229 IC231 IC232 IC235 IC238 IC239 IC240 J1 J2 J4 J5 J6 L2 L3 L4 L5 L6 L7 L8 L10 L11 L15 L45 L46 L57 L58 L63 L64 L67 L71 L72 L91 L92 MC1 MP3 Q2 Q3 Q7 Q8 Q25 Q26 Q35 Q52 Q54 Q58 Q59 Q60 Q212 Q2...

Page 34: ...39 C640 C648 C649 C660 C664 C665 C667 C668 C669 C670 C671 C672 C677 C683 C684 D6 D13 D14 D15 D16 D17 D18 D29 D36 D40 D44 D50 D52 D55 D56 D57 D58 D59 D71 D72 D86 D94 EP6 EP7 EP11 EP24 EP25 EP26 EP30 FI...

Page 35: ...2 Q31 Q17 Q5 J4 J2 IC39 IC30 IC1 DS4 DS3 DS2 D46 D4 D2 D1 C664 C663 C662 C643 H0 H5 H10 H15 H20 H25 H30 H35 H40 H45 V0 V5 V10 V15 V20 V25 V30 V35 V40 V45 V50 V55 V60 V65 V70 V75 V80 V85 V90 V95 V100 D...

Page 36: ...R873 R871 R869 R868 R867 R865 R864 R862 R861 R860 R859 R858 R857 R856 R558 R112 R95 R94 R93 R91 R88 R86 R85 R84 R83 R82 R81 R80 R79 R78 R77 R76 R75 R74 R73 R72 R69 R68 R67 R66 R65 R64 R63 R62 R61 R60...

Page 37: ...6 C54 C52 C51 C48 C38 C35 C34 C32 C31 C30 C28 C25 C24 C23 C20 C17 C15 C11 X1 R671 R606 R588 R575 R574 R573 R462 R434 R321 R299 R219 R142 R108 R107 R19 R9 R2 Q246 Q243 Q240 Q239 Q235 Q234 Q233 Q232 Q22...

Page 38: ...511 C510 C491 C490 C489 C484 C479 C478 C477 C476 C475 C474 C473 C472 C471 C470 C469 C460 C459 C458 C451 C446 C445 C444 C443 C441 C440 C439 C438 C432 C430 C407 C405 C403 C402 C401 C400 C399 C398 C397 C...

Page 39: ...SERVICE MANUAL VHF AIR BAND TRANSCEIVERS iA25N iA25C iA25NE iA25CE S 15419XZ C1 December 2017...

Page 40: ...hen ordering replacement parts 1 10 digit Icom part number 2 Component name 3 Equipment model name and unit name 4 Quantity required ORDER EXAMPLE 1110006490 LMV321IDCKR IC A25 MAIN UNIT 5 pieces 8610...

Page 41: ...EMBLY INSTRUCTION SECTION 4 ADJUSTMENT PROCEDURES 4 1 PREPARATION 4 1 4 2 FREQUENCY AND TRANSMIT ADJUSTMENTS 4 3 4 3 RECEIVE ADJUSTMENTS 4 4 SECTION 5 PARTS LIST SECTION 6 MECHANICAL PARTS SECTION 7 B...

Page 42: ...7 2 V DC PEP 6 0 W Carrier Wave 1 8 W Modulation limiting 70 100 Modulation depth 85 Spurious emissions AM fc 62 5 kHz excluded AM N fc 20 825 kHz excluded More than 46 dB Harmonics spurious emission...

Page 43: ...SECTION 2 INSIDE VIEWS 2 1 LOGIC LOGIC 1 UNIT Top view Bluetooth module IC1 GPS Antenna J2 BT Regulator IC30 Only for IC A25N...

Page 44: ...LOGIC LOGIC 1 UNIT Bottom view GPS Module IC17 Inside the shield case J3 CPU IC27 Under the shield plate Clock Oscillator X1 Under the shield plate 5 V Regulator IC40 for LCD Backlight J1 Only for IC...

Page 45: ...egulator IC240 SP J5 DC 11V J1 Internal Microphone MC1 2nd IF Filter FI4 for Narrow Discriminator X1 ALC Amplifier IC215 Audio Volume IC229 J6 MIC Switch IC231 J4 2nd IF Filter FI2 for Wide D A Conver...

Page 46: ...ilter FI2 for Narrow 1st IF Amplifier Q13 IF IC IC1 Reference Oscillator X203 Shift Resistor IC5 AF Power Amplifier IC221 RF Amplifier Q11 1st Mixer Q12 Lowpass Filter IC223 Lowpass Filter IC224 Lowpa...

Page 47: ...om the front panel Front panel Flat cable Speaker cable Chassis FLAT CABLE Lift up flat cable Suction lifter For easy separation of the CHASSIS Use a suction lifter to lift the bottom of the CHASSIS u...

Page 48: ...plate and then 1 remove it MAIN 1 UNIT Shield plate UNSOLDER Solder remover Unsolder a point at the antenna connector 2 MAIN 1 UNIT UNSOLDER Solder remover Remove 11 screws from the MAIN 1 UNIT and 3...

Page 49: ...Analyzer Frequency range 30 300 MHz Measuring range 0 100 AC millivoltmeter Measuring range 10 mV to 10 V Attenuator Attenuation 30 40 dB Capacity More than 10 W VOR tester Frequency range 108 118 MHz...

Page 50: ...PC 5 Set Adjustment Mode in the Expert to Enable 6 Click Select Enable Write the data to the transceiver 7 Turn the power OFF and then disconnect the OPC 8 478UC from the transceiver While holding do...

Page 51: ...ing 3 021 BATT 25MMH Frequency 136 975 MHz Transmitting 4 022 BATT 8MML Frequency 118 005 MHz Transmitting USA EXP 80 2 EUR AUS 90 2 5 023 BATT 8MMM Frequency 127 505 MHz Transmitting 6 024 BATT MMH F...

Page 52: ...Level 10 dB 117 dBm Push ENT Automatic adjustment 2 051 WSC_S Set the SSG to Level 13 dB 120 dBm 3 052 WSO_T Set the SSG to Level 13 dB 94 dBm 4 053 WSC_T Set the SSG to Level 10 dB 97 dBm Narrow 5 0...

Page 53: ...2 R68 7030016200 S RES RMC1 16S 274JTH 270 k 11 B 5 9 11 8 7030016200 S RES RMC1 16S 274JTH 270 k 12 R69 7030016360 S RES RMC1 16S 123JTH 12 k 11 B 2 8 14 3 7030016360 S RES RMC1 16S 123JTH 12 k 12 R7...

Page 54: ...030014400 S RES MCR006YZPJ 100 10 B 26 0 49 4 R1009 7030014400 S RES MCR006YZPJ 100 10 B 35 1 46 2 R1010 7030014400 S RES MCR006YZPJ 100 10 B 33 9 47 9 R1011 7030014400 S RES MCR006YZPJ 100 10 B 31 9...

Page 55: ...0CT 11 B 39 0 3 3 4030022640 S CER 0402N101J500CT 12 C653 4030023010 S CER 0402B104K160CT 11 B 42 2 5 1 4030023010 S CER 0402B104K160CT 12 C654 4030023090 S CER 0402B102K500CT B 41 3 89 6 C655 4030023...

Page 56: ...F B 30 3 99 5 D17 1750001790 S DIO 1SS390 TE61 B 13 7 55 8 D18 1750002170 S DIO DB2S31400L B 29 6 64 6 D23 1790001980 S DIO DA3S101F0L T 32 2 109 1 D24 1750001790 S DIO 1SS390 TE61 T 33 7 67 0 D25 175...

Page 57: ...ES RMC1 16S 224JTH 220 k B 44 7 115 2 R223 7030015970 S RES RMC1 16S 103JTH 10 k B 42 3 113 8 R224 7030016330 S RES RMC1 16S 153JTH 15 k B 44 5 113 1 R225 7030015970 S RES RMC1 16S 103JTH 10 k B 37 7...

Page 58: ...S RES RMC1 16S 472JTH 4 7 k B 6 0 16 1 R627 7030016110 S RES RMC1 16S 473JTH 47 k B 6 9 21 5 R629 7030016110 S RES RMC1 16S 473JTH 47 k B 6 9 25 6 R632 7030016110 S RES RMC1 16S 473JTH 47 k B 6 9 31...

Page 59: ...R0B500CT B 32 5 90 4 C365 4030022680 S CER 0402N150J500CT B 33 5 84 2 C372 4030023090 S CER 0402B102K500CT T 15 4 91 0 C373 4030023090 S CER 0402B102K500CT T 11 1 66 7 C375 4030022610 S CER 0402N0R3B5...

Page 60: ...1 18 7 C634 4030023010 S CER 0402B104K160CT B 13 0 24 2 C635 4030023010 S CER 0402B104K160CT B 12 1 28 8 C636 4030023010 S CER 0402B104K160CT B 13 1 15 0 C637 4030023010 S CER 0402B104K160CT B 12 2 13...

Page 61: ...015960 S RES RMC1 16S 472JTH 4 7 k 14 R73 7030015960 S RES RMC1 16S 472JTH 4 7 k 13 B 21 7 24 9 7030015960 S RES RMC1 16S 472JTH 4 7 k 14 R74 7030016040 S RES RMC1 16S 224JTH 220 k 13 B 21 7 24 0 7030...

Page 62: ...R1018 7030014400 S RES MCR006YZPJ 100 10 B 29 5 57 7 R1019 7030014400 S RES MCR006YZPJ 100 10 B 24 1 58 1 R1020 7030014400 S RES MCR006YZPJ 100 10 B 24 1 57 5 R1021 7030014400 S RES MCR006YZPJ 100 10...

Page 63: ...0 S CER 0402B102K500CT B 42 3 89 6 C659 4030023010 S CER 0402B104K160CT B 28 6 10 3 C660 4030023010 S CER 0402B104K160CT B 34 2 30 5 C661 4030019560 S CER GRM21BB31C106KE15L B 43 4 44 6 C662 403002152...

Page 64: ...6 64 6 D23 1790001980 S DIO DA3S101F0L T 32 2 109 1 D24 1750001790 S DIO 1SS390 TE61 T 33 7 67 0 D25 1750001790 S DIO 1SS390 TE61 T 37 3 66 8 D27 1750001810 S DIO L1SS400T1G T 37 2 110 1 D29 17900016...

Page 65: ...0 S RES RMC1 16S 153JTH 15 k B 44 5 113 1 R225 7030015970 S RES RMC1 16S 103JTH 10 k B 37 7 26 3 R226 7030016090 S RES RMC1 16S 223JTH 22 k T 35 6 101 7 R227 7030016050 S RES RMC1 16S 102JTH 1 k T 39...

Page 66: ...S RES RMC1 16S 473JTH 47 k B 6 9 25 6 R632 7030016110 S RES RMC1 16S 473JTH 47 k B 6 9 31 3 R635 7030015900 S RES RMC1 16S 470JTH 47 B 7 5 67 2 R637 7030016020 S RES RMC1 16S 104JTH 100 k B 40 0 64 2...

Page 67: ...N4R0B500CT B 30 3 81 1 C364 4030022540 S CER 0402N3R0B500CT B 32 5 90 4 C365 4030022680 S CER 0402N150J500CT B 33 5 84 2 C372 4030023090 S CER 0402B102K500CT T 15 4 91 0 C373 4030023090 S CER 0402B102...

Page 68: ...1 1 18 7 C634 4030023010 S CER 0402B104K160CT B 13 0 24 2 C635 4030023010 S CER 0402B104K160CT B 12 1 28 8 C636 4030023010 S CER 0402B104K160CT B 13 1 15 0 C637 4030023010 S CER 0402B104K160CT B 12 2...

Page 69: ...TAPE BM 11 1 8930083700 DOUBLE SIDE TAPE BM 12 1 8930083700 DOUBLE SIDE TAPE BM 13 1 8930083700 DOUBLE SIDE TAPE BM 14 1 MP34 8810011050 BT O M2 3 NI ZC3 11 MP35 8810009181 BT M2 5 NI ZC3 2 MP36 88100...

Page 70: ...8930097820 3699 LCD HOLDER 1 MP8 8930083700 DOUBLE SIDE TAPE BM 1 MAIN 1 UNIT for 13 14 23 and 24 REF PART DESCRIPTION QTY NO NO J1 6450000870 HEC2711 01 020 1 J2 6450000131 HSJ1102 018540 1 J4 651002...

Page 71: ...CHASSIS 8930088670 MP30 CHASSIS 8930068980 MP32 CHASSIS Refere to the parts list MP34 CHASSIS 8810011050 MP35 CHASSIS 8810009181 MP36 CHASSIS 8810009511 MP37 CHASSIS 8810011050 MP38 CHASSIS 881001085...

Page 72: ...4 C645 C646 C647 C650 C651 C652 C653 C656 C661 C662 C663 C666 C673 C674 C675 C676 C680 C681 C682 C712 D1 D2 D3 D4 D5 D8 D11 D12 D23 D24 D25 D27 D30 D31 D38 D45 D46 D48 D49 D51 D62 D66 D67 D68 D74 D78...

Page 73: ...464 R465 R466 R467 R478 R479 R480 R481 R482 R483 R484 R485 R486 R487 R488 R489 R490 R491 R492 R493 R494 R495 R497 R519 R520 R526 R527 R528 R529 R530 R532 R563 R564 R565 R566 R568 R569 R571 R593 R596 R...

Page 74: ...C676 C680 C681 C682 C694 C704 C706 C712 C713 C715 D1 D2 D3 D4 D5 D8 D11 D12 D23 D24 D25 D27 D30 D31 D38 D45 D46 D48 D49 D51 D62 D66 D67 D68 D74 D78 D80 D81 D82 D83 D85 D87 D88 D89 D90 D91 D92 D93 EP3...

Page 75: ...4 R465 R466 R467 R478 R479 R480 R481 R482 R483 R484 R485 R486 R487 R488 R489 R490 R491 R492 R493 R494 R495 R497 R519 R520 R526 R527 R528 R529 R530 R532 R563 R564 R565 R566 R568 R569 R571 R593 R596 R59...

Page 76: ...IC220 D A DA1STB SCK SDATA R5S 5V SW NARROW2 VOR SW TXC VCC VCO5 VCO5 VCO5 5V from IC216 from IC216 5V FIL SW W5V N5V 46 35 MHz W5V N5V FIL SW FIL SW R5S R5S D11 FIL SW D12 FIL SW N5V FIL SW N5V D24...

Page 77: ...R1019 10 R1020 10 R1021 10 R1022 10 R1023 10 R1024 10 R1025 10 R1026 10 R1027 10 R1028 10 R1029 10 R1030 10 R1031 10 R1032 10 R1033 10 R1034 10 R1035 10 R1036 10 R1038 10 R1040 10 R1041 10 R1042 10 R...

Page 78: ...3 C637 C638 C639 C640 C641 C642 Q5 R3 CP06S CP06S C18 C21 CP06S R28 EP4 C16 CP06S IC30 1 2 3 4 5 EP9 EP3 R864 R865 Q17 R866 R868 R869 C7 C5 C6 C645 R871 R863 C648 C649 0 1 C31 IC31 1 2 3 4 5 IC32 1 2...

Page 79: ...47k 82k R100 R101 330k 100P C98 220k R75 AK1542A IC203 1 CPVDD 2 TEST3 3 TEST1 4 LE 5 DATA 6 CLK 7 LD 8 PDN2 9 PDN1 10 REFIN 11 TEST2 12 GPO1 13 GPO2 14 DVSS 15 VREF 16 RFINN 17 RFINP 18 PVDD 19 BIAS...

Page 80: ...5 1 2 3 4 5 22k R363 L6 2 5N 1P C72 R52 1k 220P C190 68P C296 82k R293 R60 68k 68k R63 R59 150k R65 68 LQW18AN68NG00D L97 L24 C2012C 18P C85 3SK293 Q12 CP06S CP501 100 R366 100 R367 7P C86 2P C232 2R2...

Page 81: ...798 100 C130 4 7 C238 100k R569 J2 0 01 C330 820P C557 820P C558 150P C559 470P C561 0 0047 C560 100P C563 0 0039 C562 0 01 C564 15P C565 0 0022 C551 0 0033 C553 0 1 C633 0 1 C634 0 1 C635 0 1 C636 0...

Page 82: ...L99 NFM21PC224R1C3 C629 MPZ2012S221A EP30 NJM2904CRB1 IC235 1 2 3 4 5 6 7 8 1k R580 0 001 C610 S 1200B33 IC238 1 2 3 4 5 10 C646 L1SS400 D78 0 R604 LDTC144EE Q238 100k R605 2SA1588 Q239 L1SS400 D80 1...

Page 83: ...5 10 R1007 10 R1008 10 R1009 10 R1011 R1012 R1014 R1015 R1017 R1018 R1019 R1020 R1021 R1022 R1023 R1024 R1025 R1026 R1027 R1028 R1029 10 R1030 10 R1032 10 R1033 10 R1035 10 R1036 10 R1041 10 R1042 10...

Page 84: ...PDATA PCK RFSTB SCK SDATA OE DA1STB DA2STB AGCOFF BTMICSW SPMUTE AFC VOX 3V IC39 CD VSS MR VOUT VDD VIN VSS ON OFF NC VOUT J1 C630 R856 R857 R858 R859 R860 R861 R862 C633 C637 C638 C639 C640 C641 C642...

Page 85: ...00P C400 56P C402 4P C401 11P C399 10k R405 L2SC4617S Q62 0 1 C490 R119 1k R120 47k R121 100 R117 220 DB2S31400 D62 4 7 C492 4 7 C493 47k R432 47k R433 R99 47k 82k R100 R101 330k 100P C98 220k R75 AK1...

Page 86: ...K IC25 1 2 3 4 5 22k R363 L6 2 5N 1P C72 R52 1k 220P C190 68P C296 82k R293 R60 68k 68k R63 R59 150k R65 68 LQW18AN68NG00D L97 L24 C2012C 18P C85 3SK293 Q12 CP06S CP501 100 R366 100 R367 7P C86 2P C23...

Page 87: ...R569 J2 0 01 C330 820P C557 820P C558 150P C559 470P C561 0 0047 C560 100P C563 0 0039 C562 0 01 C564 15P C565 C548 0 0022 C551 0 0033 C553 C556 0 1 C633 0 1 C634 0 1 C635 0 1 C636 0 1 C637 NJM2904CRB...

Page 88: ...M21PC224R1C3 C629 MPZ2012S221A EP30 NJM2904CRB1 IC235 1 2 3 4 5 6 7 8 1k R580 0 001 C610 S 1200B33 1 2 3 4 5 10 C646 L1SS400 D78 0 R604 LDTC144EE Q238 100k R605 2SA1588 Q239 L1SS400 D80 10k R578 2SB12...

Page 89: ...DISTRIBUTORS ADDRESS If you have any inquiries regarding service contact your distributor The contact number or E mail address of your distributor can be found on our website http www icom co jp world...

Page 90: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 15419XZ C1 2017 Icom Inc...

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