Icom IC-2800 Service Manual Download Page 44

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SECTION 11 VOLTAGE DIAGRAM

CONTROL UNIT

C36
10

L9
10

IC7 TC7W14FU

C55
10

R3 100

R4 100

R5 100

R6 100

R7 100

R8 100

R9 100

R10 100

R11 100

R13 100

R12 100

C57
0.1

C31
0.1

L7
10

C33
0.1

C34
10

C25
0.1

L8
2.7

R15
470k

C23
0.001

R16
10k

L16
10

IC2
TC75S51F

–

C26
560p

C27
0.1

R18
1M

R17
68k

C30
39p

R25
27k

R26
50k

R27
1k

C35
0.1

R20
68k

R21
22k

R22
47k

R24
4.7k

R23
2.2k

C28
0.1

C29
0.1

L10
10

C92
470p

R106
560

R100
150k

R107
680

R109
10k

L13
10

C52
0.1

C53
10

D1
1SS355

R14
27k

C24
120p

R290
1.5k

R110
150

R164
150

CP1

R292
3.3

D2
1SV282

R284
100

D12
MA8033 L

R112
10k

R287
10k

R288
15k

R285 10k

R286
15k

C56
270p

W11

W12

HPOS4

HPOS3

IC1
MN83951

SYNCIN

HDBIN

SIDE2

SIDE1

VDBIN

HOUT

VDO

BLK

VPOS 3

VPOS 2

VPOS 1

ZOOM

U/D

POL

INT/EXT

CPV

OEV3

OEV2

OEV1

STV

OEH

STH

CPH4

CPH3

CPH6

CPH2

CPH5

CPH1

HALFSHIFT

CPHSEL

QHSEL

6/3

VDD

VCOI

VCOO

VSS

RESET

HDOT1

UONS

PN1

VDD

VSS

C193
220p

C77
0.1

C78
10

C194
220p

C54
4.7

Q11
2SC4081 R

D14
MA8047 M

HPOS2

HPOS1

R108
5.6k

STH1
OEH

Q2H

CPH1
CPH2
CPH3

GND

R
VB
RL

STH2
VEE

VCOM
VGH
VDD

STV2
OEV

CPV

STV1

VSS

U/D

VGL

LCD

DS1 EDTCA22QB0

C3
10

C2
0.1

C1
10

C4
0.1

C5
10

C6
0.1

C7
0.1

R2
4.7k

C8
10

C9
0.1

C10
10

C11
0.1

C12
47p

C13
47p

C14
47p

C15
47p

C16
47p

R1
4.7k

L1
10

L2
10

L3
10

L5
10

C17
47p

C18
47p

C19
47p

C20
47p

C21
47p

C22
47p

R278
47k

R280
47k

R279
47k

R31
100

R32
22k

Q4 2SC4081 R

R38
100

Q5 2SC4081 R

Q6
2SA1576 R

Q8
2SC4081 R

R41
22k

R42
100k

R35
82k

C75
0.1

C73
0.1

C74
10

R37
330k

R44
47k

Q3
2SA1576 R

Q7 2SA1576 R

C40
1

C41
1

R274
390

Q1
2SC4081 R

R40
100

D11
MA8030 H

L15
10

L14
10

C76
10

Q2 2SA1576 R

R39
22k

R275
47k

R277
47k

R276
47k

FPDAT0

FPDAT1

FPDAT2

FPDAT3

FPDAT4

FPDAT5

FPDAT6

FPDAT7

FPDAT8

C133
0.1

C134
0.1

C135
0.1

R241 10k

R238 10k

R239 10k

R240 10k

R259
10k

R235
390

C136
150p

R242 10k

R243 10k

R244 10k

R245
10k

R260
10k

R236
390

R246 10k

R247 10k

R248 10k

R261
10k

C189
220p

R60
100

R62
100

C152
0.1

R61
100

C151
0.1

C150
0.1

L4
10

W14

W10

R249
10k

R237
390

C138
150p

C137
150p

R33
100

R34
22k

CONTV

BRITV

IC6 M52338FP

VCC2

VEE

GND

17
18
19
20
21
22

BRIGHT

CONTRAST

GAM1

GAM2

EXT IN R

27
28

EXT IN G

29
30

EXT IN B

VCC1

IC16
M52042FP

: Other

M52045FP

: [EUR, ITA]

1
2
3

SYNC OUT

5
6
7
8

CONT

10
11
12

GND

S.W.

TINT

COLOR

VCC

R84
2.7k

C81
0.01

R87
33k

R89
68k

C82
0.01

R65
33k

C86
0.1

C85
0.1

C84
0.1

C90
0.1

C87
0.01

R168
47k

R167
56k

R169
68k

C130
0.01

R170
39k

C58
0.1

R58
15k

R59
560 : Other
470 : [EUR], [ITA]

C59
470p

C141
1

C131
0.01

R51
1M

R258
47k

C44
4.7

R257
39k

D13
MA8043 L

C142
0.01

C45
0.01 : Other
0.068 : [EUR],
[ITA]

C132
0.01

C89
0.1

C91
0.1

R291 22

C67
0.01

R273
2.7k

C83
0.01

C187
220p

R86
82k

C79
220p

C72
220p

C188
220p

C80
0.01

C191
220p

C71
0.01

C190
220p

C184
220p

C200
220p

C179
220p

C178
220p

C176
220p

C183
220p

C177
220p

C70
0.01

C199
220p

C196
220p

C186
220p

C181
220p

PA5

PA7

PA6

PA4

R173
470

R174
3.3k

R255
15k

R256
100k

D9
1SS355

R289
15k

R254
100k

C101
10

C102
10

R283
8.2k : Other
3.9k : [EUR], [ITA]

C154
180p : Other
100p : [EUR], [ITA]

X1
CR-640 : Other
CR-641: [EUR], [ITA]

C153
18p : Other
12p :[EUR], [ITA]

BIAS COUNT

COM OUT

COM GAIN

FRP2 IN

CP CONT

HD IN

CLAMP B

MAIN IN B

CLAMP G

MAIN IN G

CLAMP R

MAIN IN R

B OUT

SUB BIAS B
G OUT

SUB BIAS R

R OUT
FRP1 IN

SUB CONT R

SUB CONT B

C185
220p

R63
220

ACC FIL

SYNC IN

V IN

PED CAP

C TRAP
Y OUT

R OUT

G OUT

B OUT

KILLER FIL

VCXO OUT

VCXO MON

VCXO IN

APC FIL

KILLER OUT

PIX CONT

MD15
MD0
MD14

MD1
MD13
MD2
MD12
MD3
MD11
MD4
MD10
MD5
MD9

MD0

MD15

MD6

MD1

MD14

MD8

MD2

MD13

MD7

MD3

MD12

MD4

MD11

MD5

MD10

MD6

MD9

MD7

MD8

A17
A16
A15

A14
A13

MA8

A12
A11

MA7

A10

MA0

MA6

MA1

MA8

MA1

MA2

MA7

MA5

MA3

MA6

MA2

MA4

MA5

MA4

MA3

A18

FPD

LRES

AIT

FPD

C107
0.01

IC8
SED1354F0A

AB2

AB1

AB0

CS#

M/R#

BS#

RD#

WE0#

WE1#

RD/WR#

RESET#

GPIO0

AIT#

VDD

VS S

DB15

DB14

DB13

DB12

DB11

DB10

DB9

DB8

DB7

DB6

DB5

DB4

DB3

DB2

DB1

DB0

VSS

COREVDD

MA3

MA4

MA2

MA5

MA1

MA6

MA0

MA7

MA10

MA8

MA11

MA9

IOVDD

RAS#

WE#

UCAS#

LCAS#

VSS

MD7

MD8

MD6

MD9

MD5

MD10

MD4

MD11

MD3

MD12

MD2

MD13

MD1

MD14

MD0

MD15

VSS

FPFRAME

FPLINE

LCDPWR

DRD

FPSHIFT

VSS

FPD

VDD

CRD #

BLANK #

CCLK

VSS

FPD

T10

FPD

T11

FPD

T12

FPD

T13

FPD

T14

FPD

T15

VSS

COREVDD

DACP0

DACWR#

DACRS0

100

DACRS1

101

HRTC

102

VRTC

103

VSS

104

CLK

105

SUSPEND#

106

TESTEN

107

BUSCLK

108

VSS

109

IOVDD

110

AB20

111

AB19

112

AB18

113

AB17

114

AB16

115

AB15

116

AB14

117

AB13

118

AB12

119

AB11

120

AB10

121

AB9

122

AB8

123

AB7

124

AB6

125

AB5

126

AB4

127

AB3

128

R231
100k

JP1

C148
0.01

R271
56

D10
MA8030 H

IC19
TC7W04FU

1
2
3
4

IC9 LH61665AS-60A

VCC

I/O1

I/O2

I/O3

I/O4

I/O5

I/O6

I/O7

I/O8

VCC

RAS

VCC

VSS

CAS

VSS

I/O9

I/O10

I/O11

I/O12

I/O13

I/O14

I/O15

I/O16

VSS

IC22 TA78L05F

R233
100k

R232
100k

R217
15k

C103
0.01

C128
33

EP2
MMZ1608Y102BT

C157
0.22

C158
0.01

C159
0.01

R250 1M

X3
CSTCV26.25MXJ040

R178 100k

C104
0.01

R208
15k

R215
15k

R206
15k

R220
15k

VSYNC

HSYNC

JP2

D0
D1
D2
D3
D4
D5
D6
D7

LRES

PB7

PA7

PA6

PA5

PA4

PA3

PA2

PA1

PA0

A8
A9

P80

A10
A11
A12

P77

A13
A14

P75

A15

P74

A16

P73

A17

P72

P71
P70

A18

WAIT

R131 1k

R127 1k
R128 470

R130 1k

R129 10k

R132 1k
R133 1k
R136 1k

R179
47k

R180
220k

R181
220k

R182
220k

R183
220k

R184
220k

R185
220k

R186
220k

R187
220k

R196
220k

R197
220k

R198
220k

R199
220k

R200
220k

R201
220k

R202
220k

R203
220k

R204
220k

R205
220k

IC11 S-80945ANMP-DD9

OUT

VDD

VSS

C143
12p

C105
0.01

R262
220k

R263
47k

R266
220k

R265
220k

R264
100k

R135 1k

R137 1k

R270
1k

C145
3p

C146
0.01

C147
0.01

X2
CR-566

C144
12p

C120
0.01

C119
0.01

JP3

IC21 TC74AC244F

ENA

YB4

YB3

YB2

YB1

VSS

VDD

ENB

YA1

YA2

YA3

YA4

IC20
TC7S08FU

1
2
3

IC10
HD6433032SK21F

PB0/TP8/TIOCA3

PA7/TP7/TIOCB2

P37/D7

VCC

P51/A17

P52/A18

P71/AN1

P72/AN2

PB1/TP9/TIOCB3

PB2/TP10/TIOCA4

PB3/TP11/TIOCB4

PB4/TP12/T

OCXA4

PB5/TP13/T

OCX B4

PB6/TP14

PB7/TP15/ADTRG

P90/TXD

P92/RXD

P94/SCK/IRQ4

VSS

P30/D0

P31/D1

P32/D2

P33/D3

P34/D4

P35/D5

P36/D6

P10/A0

P11/A1

P12/A2

P13/A3

P14/A4

P15/A5

P16/A6

P17/A7

VSS

P20/A8

P21/A9

P22/A10

P23/A11

P24/A12

P25/A13

P26/A14

P27/A15

P50/A16

P53/A19

P60/W

AIT

MD0

MD1

FAI

STBY

RES

NMI

VSS

EX T

VCC

P63/AS

P64/RD

P65/WR

RESO

VSS

P70/AN0

P73/AN3

P74/AN4

P75/AN5

P76/AN6

P77/AN7

VREF

AVCC

P80/IRQ0

P81/IRQ1

P82/IRQ2

P83/IRQ3

PA0/TP0/TCLKA

PA1/TP1/TCLKB

PA2/TP2/TIOCA0

PA3/TP3/TIOCB0

PA4/TP4/TIOCA1

PA5/TP5/TIOCB1

PA6/TP6/TIOCA2

R140 1k
R141 1k
R142 1k

R143 1k

R175 1k

R176 1k

R268 47k

R269 47k

R267
220k

R299
1k

R300
1.5k

R134
1k

R177 47k

R272
10k

XT AL

R188 220k

R189 220k

R190 220k

R191 220k

R192 220k

R193 220k

R194 220k

R195 220k

HV
TDATA
RDATA
GND

SPE

SP
SPE

IC14 TA78L05F

C114
10

R163
10k

C117
47p

C118
47p

Q18
2SB1132 R

W13

R293
4.7

C113
0.001

1
2

C112
0.001

R158
10k

Q12
2SC4081 R

R159
4.7k

R160
4.7k

C169
220p

C115
10

C164
220p

C165
220p

C168
220p

C166
220p

C160
0.1

C116
0.001

TO
MAIN UNIT
J3

1
2

SP1
VS-57-0814

C167
220p

UDIAL
ENCODER

UVOL

USQL

VVOL

VSQL

POWER

F-1

F-2

F-3

F-4

F-5

F-6

F-7

F-8

CHANGE

PA2

P73

P72

PA3

P74

P75

P80

P77

P71

P70

PA0
PA1

R152
47k

R155
47k

C109
0.0047

C110
47p

R113
2.2k

R114
4.7k

R115
15k

R117
2.2k

C98
0.0047

R126
47k

R124
47k

R125
47k

R120
6.8k

R116
6.8k

S12

COM

S11

COM 4

R145
10k

R148
10k

R151
10k

R154
10k

R157
100k

R162
4.7k

R161
15k

R298
10k

Q13
2SA1576 R

C108
0.0047

R122
47k

C111
47p

C97
0.0047

R146
47k

R149
47k

C95
47p

C174
220p

R119
15k

R118
4.7k

R121
47k

C94
47p

C96
0.0047

C175
220p

R123
47k

C172
220p

C197
220p

C99
0.0047

C195
220p

C173
220p

S10

EXT V

CFL+

CFL–

NC
NC

1
2
3
4

VIDEO
IN

1
2
3
4

CFL

DS2 HMBS 3 A1W 83N/AZ Assy

S11
EVQ-VENF01

VDIAL
ENCODER

S12
EVQ-VENF01

C123
33

IC17 TA78L05F

R165
8.2k

C122
33P

C155
10

C121
0.033

L18
SLF6028T-101MR42

C129
0.001

IC23 TA78L05F

C156
0.1

C127
0.001

C149
10

R294
2.7k

Q20
2SA1362 GR

L19
678XN-1369

C192
220p

Q14
2SC3647 S

Q15
2SC3647 S

Q19
DTC144EU

R295
4.7k

IC3 M5291FP

GND

INVIN

V+

C125
47

IC15
TA79L15F

C126
0.001

L11
SLF7032T-681MR16-2

D3
SB10-05PCP

C38
47

R30
470k

R29
33k

C39
8.2

Q16
2SA1362 GR

R282
2.7k

R281 4.7k

C124
0.001

R296
2.2k

R297
680

Q17
DTC144EU

Q21
2SB798 DK

C201
2.2

C37
0.001

R302
8.2

R28
1

R301
8.2

5.11

12.94

5.22

6.56

12.46

12.34

–15.8

–16.9

–16.0

13.01

12.08

0.6

12.5

12.6

–0.36

13.06

12.39

5.2

5.13

5.16

–14.7

5.22

1.81

3.15

1.72

1.71

5.11

4.88

3.26

2.62

–3.1

0.86

–14.5

5.05

1.4

0.34

0.9

5.13

5.21

13.0

4.67

–8

–14.5

–7.5

–14.7

4.26

5.22

5.21

0.15

LEFT SIDE

RIGHT SIDE

CENTER

11 - 1

Summary of Contents for IC-2800

Page 1: ...A 5570MI S 1999 by Icom Inc 6 9 16 Kamihigashi Hirano ku Osaka 547 0002 Japan Count on us DUAL BAND FM TRANSCEIVER iC 2800h iC 2800h Downloaded by Amateur Radio Directory ...

Page 2: ... used for all adjustments 5 DO NOT keep power ON for a long time when the transceiver is defective 6 DO NOT transmit power into a signal generator or a sweep generator 7 ALWAYS connect a 50 dB or 60 dB attenuator between the transceiver and a deviation meter or spectrum analyser when using such test equipment 8 READ the instructions of test equipment thoroughly before connecting equipment to the t...

Page 3: ...Y CIRCUITS 4 5 4 5 CPU PORT ALLOCATIONS 4 5 SECTION 5 ADJUSTMENT PROCEDURES 5 1 PREPARATION 5 1 5 2 PLL AND TRANSMITTER ADJUSTMENTS 5 2 5 3 RECEIVER ADJUSTMENT 5 4 SECTION 6 PARTS LIST SECTION 7 MECHANICAL PARTS AND DISASSEMBLY SECTION 8 SEMI CONDUCTOR INFORMATION SECTION 9 BOARD LAYOUTS 9 1 CONTROL UNIT 9 1 9 2 MAIN UNIT 9 3 SECTION 10 BLOCK DIAGRAM SECTION 11 VOLTAGE DIAGRAM 11 1 CONTROL UNIT 11...

Page 4: ...e reactance frequency Maximum frequency deviation 5 0 2 5 kHz EUR and ITA versions only Spurious emissions Less than 60 dB Microphone connector 8 pin modular 600 Ω M RECEIVER Receive system Double conversion superheterodyne Intermediate frequency VHF 1st IF 15 65 MHz 2nd IF 450 kHz UHF 1st IF 46 05 MHz 2nd IF 450 kHz Sensitivity at 12 dB SINAD Less than 0 18 µV Squelch sensitivity threshold Less t...

Page 5: ...F antenna switch D27 D37 D39 D72 UHF 1st mixer Q42 Q43 D32 VHF antenna switching D9 D16 D18 VHF power module IC1 M67746 VHF APC DET D7 D8 RB706F VHF RF amplifier Q16 3SK166 High Low control IC IC5 TA75S01F VHF 1st mixer Q15 3SK166 AF amplifier IC12 LA4445 VHF FM IF IC IC28 TA31136FN UHF power module IC4 SC 1318 UHF APC DET D25 D26 RB706F SUB CPU IC10 HD6433032SK T data buffer amplifier Q12 2SC4081...

Page 6: ...screws A and remove the cover w Unplug J5 to separate the speaker and front panel e Remove rear panel in the deirection of the arrow r Remove 6 knobs B t Unscrew 5 screws C and remove the CONTROL unit in the direction of the arrow y Unscrew 2 screws D when remove the LCD r Unsolder 3 points D and unscrew 11 nut E t Remove the MAIN unit in the direction of the arrow A B B C Cover J4 E E E E MAIN UN...

Page 7: ...ity The filtered signals are applied to the VHF 1st mixer circuit Q15 The tunable bandpass filters D11 D13 D15 employ varac tor diodes to tune the center frequency of the RF passband for wide bandwidth receiving and good image response rejection The PLL lock voltage is used for control voltage of these varactor diodes The PLL lock voltage is amplified at the DC amplifier Q18 and then applied to th...

Page 8: ... RF sig nals are received By detecting noise components in the AF signals the squelch circuit switches the AF mute switch Some of the noise components in the AF signals from the FM IF IC IC28 pin 9 are passed through the active filter section IC28 pin 8 7 and then applied to the noise detector sec tion IC28 The variable resister R196 adjusts the input level of the active filter and the level is us...

Page 9: ... applied to the CPU IC19 pin 95 The SQL CONTROL unit R148 controls the input level of the sub CPU CONTROL unit IC10 pin 61 in DC voltage The sub CPU reads the angle of the SQL rotation then send the squelch data to the CPU incorporated in the RDATA line Then the CPU controls U AF mute switch Q71 via the UAMUTE line 4 2 TRANSMITTER CIRCUITS 4 2 1 MICROPHONE AMPLIFIER CIRCUIT The microphone amplifie...

Page 10: ...gnal from the power amplifier IC4 pin 1 is passed through the antenna switching circuit D27 and is then applied to the antenna connector via a bandpass filter L42 L45 L82 C186 C190 C467 C493 4 2 9 UHF APC CIRCUIT The APC detector circuit D25 and D26 detects forward sig nals and refrection signals respectively The combined volt age is at a minimum level when the antenna is matched at 50 Ω and incre...

Page 11: ... regardless of the power ON OFF condition Common 5 V produced from the C5V at the PLL5V regulator circuit Q13 Q14 using control signal from 8V line Common 8 V converted from the 13 8V line by the 8V regulator circuit IC14 VHF transmit 8 V converted from the 8V line at the VT8V regulator circuit Q9 Q10 UHF transmit 8V converted from the 8V line at the UT8V regulator circuit Q25 Q26 Receive VR8V pro...

Page 12: ...tputs data signal for the electronic volume IC IC10 Input port for packet PTT signal High Packet PTT switch is ON Input port for the PTT switch High While PTT switch is pushed PLL unlock signal input port for VHF band High PLL unlock on VHF band PLL unlock signal input port for UHF band High PLL unlock on UHF band Outputs control signal for the V BIAS selector Q34 Q35 High While receiving on VHF b...

Page 13: ...to 10 kHz Input impedance 50 kΩ V DC or better EQUIPMENT Audio generator Standard signal generator SSG Oscilloscope AC millivoltmeter External speaker Attenuator GRADE AND RANGE Frequency range 300 3000 Hz Measuring range 1 500 mV Frequency range 0 1 600 MHz Output level 0 1 µV 32 mV 127 to 17 dBm Frequency range DC 20 MHz Measuring range 0 01 20 V Measuring range 10 mV 10 V Input impedance 8 Ω Ca...

Page 14: ...layed freq 445 000 MHz USA 435 000 MHz other Output power Low Connect an audio generator to the MIC connector and set as 1 kHz 80 mV USA 1 kHz 20 mV other TONE OFF Set an FM deviation meter as HPF 50 Hz LPF 20 kHz De emphasis OFF Detector P P 2 Transmitting VHF displayed freq 145 000 MHz EUR 146 000 MHz other Output power Low Transmitting IF bandwidth Narrow EUR ITA only Transmitting MAIN Rear pan...

Page 15: ...R119 UHF output power adjustment CP LV PLL lock voltage check point L2 PLL lock voltage adjustment R2 VHF deviation adjustment R119 VHF output power adjustment C84 Reference frequency adjustment R78 UHF deviation adjustment Controller ...

Page 16: ... Level 1 6 µV 103 dBm Modulation 1 kHz 30 Receiving Displayed frequency 360 200 MHz Mode FM Set an SSG as Level 1 0 µV 107 dBm Deviation 3 5 kHz Modulation 1 kHz Receiving Displayed frequency 445 200 MHz USA 435 200 MHz other Mode FM Receiving Displayed frequency 900 200 MHz Set an SSG as Level 6 3 µV 91 dBm Deviation 3 5 kHz Modulation 1 kHz Mode FM Receiving Connect a JIG1 to the MIC connector t...

Page 17: ...OINT UNIT LOCATION UNIT ADJUST 1 2 UHF displayed freq 445 000 MHz USA 435 000 MHz other Set the squelch level to 22 using the HM 98 microphone R229 Max clockwise set an SSG as Level 14 µV 85 dBm Receiving VHF displayed freq 145 000 MHz EUR 146 000 MHz other Set the squelch level to 22 using the HM 98 microphone R196 Max clockwise set an SSG as Level 14 µV 85 dBm Receiving Speaker At the point wher...

Page 18: ...00 Ω R11 7030003320 S RESISTOR ERJ3GEYJ 101 V 100 Ω R12 7030003320 S RESISTOR ERJ3GEYJ 101 V 100 Ω R13 7030003320 S RESISTOR ERJ3GEYJ 101 V 100 Ω R14 7030003610 S RESISTOR ERJ3GEYJ 273 V 27 kΩ R15 7030003760 S RESISTOR ERJ3GEYJ 474 V 470 kΩ R16 7030003560 S RESISTOR ERJ3GEYJ 103 V 10 kΩ R17 7030003660 S RESISTOR ERJ3GEYJ 683 V 68 kΩ R18 7030003800 S RESISTOR ERJ3GEYJ 105 V 1 MΩ R20 7030003660 S RE...

Page 19: ...J 102 V 1 kΩ R128 7030003400 S RESISTOR ERJ3GEYJ 471 V 470 Ω R129 7030003560 S RESISTOR ERJ3GEYJ 103 V 10 kΩ R130 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 kΩ R131 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 kΩ R132 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 kΩ R133 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 kΩ R134 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 kΩ R135 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 kΩ R136 7030...

Page 20: ...4960 S CONNECTOR B2B ZR SM3 TF S Surface mount C19 4030007090 S CERAMIC C1608 CH 1H 470J T A C20 4030007090 S CERAMIC C1608 CH 1H 470J T A C21 4030007090 S CERAMIC C1608 CH 1H 470J T A C22 4030007090 S CERAMIC C1608 CH 1H 470J T A C23 4030006860 S CERAMIC C1608 JB 1H 102K T A C24 4030007140 S CERAMIC C1608 CH 1H 121J T A C25 4030008630 S CERAMIC C1608 JF 1C 104Z T A C26 4030010040 S CERAMIC C1608 ...

Page 21: ...1 Q24 1530003230 S TRANSISTOR 2SC5085 Y TE85R Q25 1530002060 S TRANSISTOR 2SC4081 T107 R Q26 1510000580 S TRANSISTOR 2SA1362 GR TE85R Q27 1530003230 S TRANSISTOR 2SC5085 Y TE85R Q28 1530002680 S TRANSISTOR 2SC3357 T2 Q29 1530002340 S TRANSISTOR 2SC2954 T2B Q30 1520000730 S TRANSISTOR 2SB934P DS TX Q31 1530002280 S TRANSISTOR 2SC4081 T107 S Q32 1590001320 S TRANSISTOR DTC143ZUA T106 Q33 1530002060 ...

Page 22: ...NSISTOR DTC144EUA T106 Q54 1560000840 S FET 2SK1829 TE85R EUR ITA only Q55 1590001450 S FET 2SJ144 GR TE85R Q56 1530002060 S TRANSISTOR 2SC4081 T107 R Q57 1560000530 S FET 2SK880 GR TE85R Q58 1590000720 S TRANSISTOR DTA144EUA T106 EUR ITA only Q59 1560000530 S FET 2SK880 GR TE85R Q60 1530002060 S TRANSISTOR 2SC4081 T107 R Q61 1590000430 S TRANSISTOR DTC144EUA T106 Q62 1590001450 S FET 2SJ144 GR TE...

Page 23: ...OR ERJ3GEYJ 473 V 47 kΩ R25 7030003280 S RESISTOR ERJ3GEYJ 470 V 47 Ω R26 7030003640 S RESISTOR ERJ3GEYJ 473 V 47 kΩ R27 7030003480 S RESISTOR ERJ3GEYJ 222 V 2 2 kΩ R28 7030003480 S RESISTOR ERJ3GEYJ 222 V 2 2 kΩ R29 7030003520 S RESISTOR ERJ3GEYJ 472 V 4 7 kΩ R30 7030003680 S RESISTOR ERJ3GEYJ 104 V 100 kΩ R31 7030003520 S RESISTOR ERJ3GEYJ 472 V 4 7 kΩ R32 7030003680 S RESISTOR ERJ3GEYJ 104 V 10...

Page 24: ... ERJ3GEYJ 153 V 15 kΩ R182 7030003520 S RESISTOR ERJ3GEYJ 472 V 4 7 kΩ R183 7030003360 S RESISTOR ERJ3GEYJ 221 V 220 Ω R184 7030003290 S RESISTOR ERJ3GEYJ 560 V 56 Ω R185 7030003290 S RESISTOR ERJ3GEYJ 560 V 56 Ω 6 7 REF ORDER DESCRIPTION NO NO MAIN UNIT R186 7030003320 S RESISTOR ERJ3GEYJ 101 V 100 Ω R187 7030003220 S RESISTOR ERJ3GEYJ 150 V 15 Ω R188 7030003630 S RESISTOR ERJ3GEYJ 393 V 39 kΩ R1...

Page 25: ...474 V 470 kΩ R366 7030003760 S RESISTOR ERJ3GEYJ 474 V 470 kΩ R367 7030003760 S RESISTOR ERJ3GEYJ 474 V 470 kΩ REF ORDER DESCRIPTION NO NO MAIN UNIT R368 7030003640 S RESISTOR ERJ3GEYJ 473 V 47 kΩ R369 7030003600 S RESISTOR ERJ3GEYJ 223 V 22 kΩ R370 7030003570 S RESISTOR ERJ3GEYJ 123 V 12 kΩ R371 7030003600 S RESISTOR ERJ3GEYJ 223 V 22 kΩ R372 7030003630 S RESISTOR ERJ3GEYJ 393 V 39 kΩ R373 703000...

Page 26: ...003500 S RESISTOR ERJ3GEYJ 332 V 3 3 kΩ R538 7030003490 S RESISTOR ERJ3GEYJ 272 V 2 7 kΩ R539 7030003770 S RESISTOR ERJ3GEYJ 564 V 560 kΩ R540 7030003360 S RESISTOR ERJ3GEYJ 221 V 220 Ω 6 9 REF ORDER DESCRIPTION NO NO MAIN UNIT R541 7030001080 S RESISTOR MCR50JZHJ 39 Ω 390 R542 7030003560 S RESISTOR ERJ3GEYJ 103 V 10 kΩ R543 7030003560 S RESISTOR ERJ3GEYJ 103 V 10 kΩ R544 7030003440 S RESISTOR ERJ...

Page 27: ... A C160 4030006930 S CERAMIC C1608 CH 1H 020C T A REF ORDER DESCRIPTION NO NO MAIN UNIT C161 4030006860 S CERAMIC C1608 JB 1H 102K T A C162 4030006980 S CERAMIC C1608 CH 1H 070D T A C163 4030006860 S CERAMIC C1608 JB 1H 102K T A C164 4030006860 S CERAMIC C1608 JB 1H 102K T A C165 4030006860 S CERAMIC C1608 JB 1H 102K T A C166 4510004640 S ELECTROLYTIC ECEV1CA470SP C167 4030006960 S CERAMIC C1608 C...

Page 28: ...11 REF ORDER DESCRIPTION NO NO MAIN UNIT C323 4030006860 S CERAMIC C1608 JB 1H 102K T A C324 4030006860 S CERAMIC C1608 JB 1H 102K T A C325 4030006860 S CERAMIC C1608 JB 1H 102K T A C326 4030006930 S CERAMIC C1608 CH 1H 020C T A C327 4030006960 S CERAMIC C1608 CH 1H 050C T A C328 4030006960 S CERAMIC C1608 CH 1H 050C T A C329 4030006860 S CERAMIC C1608 JB 1H 102K T A C330 4510004440 S ELECTROLYTIC...

Page 29: ...4030012600 S CERAMIC C2012 JB 1A 105M T A C485 4030006920 S CERAMIC C1608 CH 1H 010C T A C486 4030006860 S CERAMIC C1608 JB 1H 102K T A C487 4030006860 S CERAMIC C1608 JB 1H 102K T A C488 4030006860 S CERAMIC C1608 JB 1H 102K T A C489 4030006860 S CERAMIC C1608 JB 1H 102K T A C490 4030006860 S CERAMIC C1608 JB 1H 102K T A C491 4030012600 S CERAMIC C2012 JB 1A 105M T A C492 4030008680 S CERAMIC C20...

Page 30: ...0048790 2047 B sheet 1 MP16 8930048780 2047 Jack cover 1 MP17 8810008990 Screw PH BT M2 10 ZK 4 MP18 8810008640 Screw FH BT No 0 M2 4 NI ZU 2 MP19 8810008990 Screw PH BT M2 10 ZK 4 MP20 8810009180 Screw PH BT No 0 M2 5 NI ZU 2 MP21 8810000100 Screw PH M2 4 ZK 1 MP22 8930049160 2047 C sheet 1 MP23 8510012370 2048 CPU plate 1 MP24 8510012240 2047 LCD shield 1 MP25 8930049070 Isolating plate FR 1 MP2...

Page 31: ...4 C MP3 C MP4 C MP3 C MP5 C MP4 C MP13 CO MP18 CO DS1 CO MP14 CO MP15 CO MP13 CO DS2 CO MP24 CO MP25 CO MP17 CO MP21 CO MP7 CO MP23 CO MP20 CO WS1 CO MP30 CO MP19 CO MP19 CO MP10 CO MP17 CO MP16 CO MP3 C MP13 C W4 M MP2 M IC1 M MP14 C MP11 C MP12 C MP1 C J1 C MF1 C MP2 C MP10 C MP14 C IC4 M MP2 M MP7 M MP9 C MAIN unit CONTROL unit SP1 CO Downloaded by Amateur Radio Directory ...

Page 32: ...CC 2SD999 T2 CK CK C E C B 2SB1132 T100 R BAR 2SB798 T2 DK DK B E C C 2SJ144 GR VG S D G 3SK166A 2 T7 K S D G1 G2 2SK880 GR XG 2SK880 Y XY G S D 3SK184 S 3R G2 S G1 D 2SK1829 KI D S G UMG9N TL G9 C1 C2 E B1 B2 8 1 8 2 DIODES NAME SYMBOL INSIDE VIEW NAME SYMBOL INSIDE VIEW DA114 AV A C DA115 AU A C DAN202U N A1 C1 C2 A2 C A DA204U K DA221 TL K MA133 MP RB706F 40 3J A1 C2 C1 A2 MA862 M1I A2 C2 A1 C1...

Page 33: ...J3 from CFL BACK LIGHT EXT VIDEO IN UVOL USQL UDIAL VVOL VSQL VDIAL 1 2 3 4 5 6 1 2 3 4 5 6 J2 to MAIN UNIT J3 J2 1 2 3 4 A B NC COM 4 3 2 1 COM NC B A The combination of this page and the next page shows the unit layout in the same configuration as the actual P C Board SECTION 9 BOARD LAYOUTS ...

Page 34: ... NC NC CFL J3 from CFL BACK LIGHT DS2 EXT VIDEO IN J4 UVOL R145 USQL R148 UDIAL S11 VVOL R151 VSQL R154 VDIAL S12 1 2 3 4 5 6 1 2 3 4 5 6 J2 to MAIN UNIT J3 J2 1 2 3 4 A B NC COM 4 3 2 1 COM NC B A 1 4 R151 R154 R145 J4 R148 S11 VGL VSS STV1 U D CPV OEV STV2 VDD VGH VCOM VEE STH2 RL VB R G B GND CPH3 CPH2 CPH1 O2H OEH STH1 1 5 10 15 20 24 J1 from LCD DISPLAY DS1 SP SPE 1 2 J5 from SPEAKER SP1 MP23...

Page 35: ...to CONTROL UNIT J2 6 7 5 4 3 2 1 8 EXT MIC INPUT STD Q4 Q3 Q2 Q1 TOE C5V DETO GND OPD 1 10 E FV 1 2 J4 MDATA E MIC MICE PTT EXTMIC MU D M8V M from FAN MOTOR MF1 ANTENNA EXT SP CLONE I O W4 HV IN J6 to OPTIONAL UNIT J5 The combination of this page and the next page shows the unit layout in the same configuration as the actual P C Board ...

Page 36: ...5 4 3 2 1 from CONTROL UNIT 6 7 5 4 3 2 1 8 EXT MIC INPUT M8V MU D EXTMIC PTT MICE MIC E MDATA from EXT SP J1 CLONE I O J2 MAIN UNIT BOTTOM VIEW The combination of this page and the previous page shows the unit layout in the same configuration as the actual P C Board Downloaded by Amateur Radio Directory ...

Page 37: ... TA78L05F CTRL HV SW Q16 2SA1362 Q17 DTC144EU 15V REG IC15 TA79L15F D RAM IC9 LH61665AS 60A TFT LCD INTERFACE IC6 M52338FP D9 1SS355 DC DC CONVERTER IC3 M5291FP Q21 2SB798 D3 SB10 05PCP X3 CSTC26 25MXJ040 CLKI G B VIDEO AMP Q11 2SC4081 PD AMP IC2 TC75S51F D2 1SV282 R G B M ESW SP MA0 MA8 MD0 MD15 XTAL EXTAL NTSC PAL VIDEO CHROMA IC16 M52045FP EUR ITA M52042FP Other INVERTER IC19 TC7W04FU EXTV CHG ...

Page 38: ...IC MUTE 9600 bps SW IC26 BU4066BCFV Q93 DTC144EU 9600 bps LIMIT IC27A NJM4558M 1 2 D67 MA728 D68 RB706F MMUTE DTMUTE MRIPT DTMF ETONE W N CTCSS PTTM V_VCOS REG Q1 2SC4081 D1 1SS355 U_VCOS REG Q17 2SC4081 D19 1SS355 DATA CK PLSTB STB MU D EXTMIC PSEL PSQL LIMIT VTX UTX VUNLK UMMUTE VAM LV UAM VMMUTE VSHIFT TONEIN VSQL VT8V REG Q9 2SC4081 Q10 2SA1362 U8V SW D28 1SS355 D29 DAN202U 10 000 MHz C5V UR8V...

Page 39: ...3 BUFF AMP Q6 2SC5085 BUFF AMP Q8 2SC5193 V_DET SW Q53 DTC144EU Q55 2SJ144 Q56 2SC4081 BUFF AMP Q7 2SC5085 V_ LO SW D4 MA862 V_IF AMP Q40 2SC4215 D30 MA133 SEA CSA RX 120 35 158 35 MHz TX 140 150 MHz V_PRI DRIVE Q11 2SC3357 V 1st Lo BPF D11 D12 D13 HVU350 3 D14 1SS355 V_RF AMP Q16 3SK166 BPF D15 HVU350 D71 1SS355 V_ANT SW D9 UM9401F D16 1SS355 D18 UM9401F V_ATT CTRL Q33 2SC4081 APC CTRL Q30 2SB934...

Page 40: ...BUFFER AMP Q79 2SA1576 V_MOD MUTE Q2 2SC4213 BUFF AMP Q6 2SC5085 BUFF AMP Q8 2SC5193 V_DET SW Q53 DTC144EU Q55 2SJ144 Q56 2SC4081 BUFF AMP Q7 2SC5085 V_ LO SW D4 MA862 V_IF AMP Q40 2SC4215 D30 MA133 SEA CSA RX 120 35 158 35 MHz TX 140 150 MHz V_PRI DRIVE Q11 2SC3357 V 1st Lo BPF D11 D12 D13 HVU350 3 D14 1SS355 V_RF AMP Q16 3SK166 BPF D15 HVU350 D71 1SS355 V_ANT SW D9 UM9401F D16 1SS355 D18 UM9401F...

Page 41: ...3 MD2 MD12 MD3 MD11 MD4 MD10 MD5 MD9 MD0 MD15 MD6 MD1 MD14 MD8 MD2 MD13 MD7 MD3 MD12 MD4 MD11 MD5 MD10 MD6 MD9 MD7 MD8 A17 A16 A15 A14 A13 MA8 A12 A11 MA7 A10 MA0 MA0 A9 MA6 MA1 MA8 A8 MA1 MA2 MA7 A7 MA5 MA3 MA6 A6 MA2 MA4 MA5 A5 MA4 A4 MA3 A3 A2 A1 A0 CS A18 RD WR FPDAT8 LRES WAIT FPDAT7 FPDAT6 FPDAT5 FPDAT4 FPDAT3 FPDAT2 FPDAT1 FPDAT0 D7 D6 D5 D4 D3 D2 D1 D0 C107 0 01 IC8 SED1354F0A AB2 1 AB1 2 ...

Page 42: ...7 18 19 20 21 22 BRIGHT 23 CONTRAST 24 GAM1 25 GAM2 26 EXT IN R 27 28 EXT IN G 29 30 EXT IN B 31 VCC1 32 IC16 M52042FP Other M52045FP EUR ITA 1 2 3 SYNC OUT 4 HD 5 6 7 8 CONT 9 10 11 12 GND 13 14 15 S W 16 17 18 TINT 19 COLOR 20 21 22 23 VCC 24 R84 2 7k C81 0 01 R87 33k R89 68k C82 0 01 R65 33k C86 0 1 C85 0 1 C84 0 1 C90 0 1 C87 0 01 R168 47k R167 56k R169 68k C130 0 01 R170 39k C58 0 1 R58 15k R...

Page 43: ...50 A16 39 P53 A19 42 P60 WAIT 43 MD0 44 MD1 45 FA I 46 STBY 47 RES 48 NMI 49 VSS 50 EX TAL 51 52 VCC 53 P63 AS 54 P64 RD 55 P65 WR 56 RESO 57 AVSS 58 P70 AN0 59 P73 AN3 62 P74 AN4 63 P75 AN5 64 P76 AN6 65 P77 AN7 66 VREF 67 AVCC 68 P80 IRQ0 69 P81 IRQ1 70 P82 IRQ2 71 P83 IRQ3 72 PA0 TP0 TCLKA 73 PA1 TP1 TCLKB 74 PA2 TP2 TIOCA0 75 PA3 TP3 TIOCB0 76 PA4 TP4 TIOCA1 77 PA5 TP5 TIOCB1 78 PA6 TP6 TIOCA2...

Page 44: ...81 FPDAT7 82 IOVDD 83 DACRD 84 BLANK 85 DACCLK 86 VSS 87 FPDAT8 88 FPDAT9 89 FPDAT10 90 FPDAT11 91 FPDAT12 92 FPDAT13 93 FPDAT14 94 FPDAT15 95 VSS 96 COREVDD 97 DACP0 98 DACWR 99 DACRS0 100 DACRS1 101 HRTC 102 VRTC 103 VSS 104 CLK I 105 SUSPEND 106 TESTEN 107 BUSCLK 108 VSS 109 IOVDD 110 AB20 111 AB19 112 AB18 113 AB17 114 AB16 115 AB15 116 AB14 117 AB13 118 AB12 119 AB11 120 AB10 121 AB9 122 AB8 ...

Page 45: ... H L71 2 2 H L74 2 2 H L75 2 2 H L76 0 82 H L77 2 2 H L72 2 2 H L73 2 2 H C399 0 1 R354 1M R353 82k C398 0 039 R352 82k R351 82k C397 0 0015 C395 0 1 R349 470k R350 120k C394 0 1 R348 100k R346 1M R347 470k C393 0 01 C392 100p C404 1 R364 470k R363 470k R362 470k R361 100k C403 0 1 R369 22k R366 470k R365 470k R367 470k C402 0 1 D61 MA8062 C389 47p C387 47p R359 10k C401 0 1 R360 22k R357 1M C400 ...

Page 46: ...2 7k 3 2 1 5 4 W7 R141 270 D30 MA133 C205 0 001 R143 100 L46 1 2 H L67 8 2 H C209 2p R89 47 C142 0 001 R137 820 R538 2 7k R 3 R530 1 2k R531 1 5k C478 0 1 C215 82p R56 3 9k R52 2 7k C76 0 047 R529 820 R528 1k C137 0 5p R535 1 2k D21 1SV284 C134 0 75p R88 330 C135 0 001 X1 CR 549 C210 0 5p C212 1p C208 3p L68 1 8 H C211 4p C475 0 001 W10 C219 0 001 W2 W3 R200 47k C272 0 01 C485 1p R539 560k R212 10...

Page 47: ...0 001 R269 100k D44 MA8075 L65 0 39 H C362 2200 D46 RD20E 1 2 MF1 M C363 0 001 C369 0 001 C360 0 001 C361 47 C352 47 C353 0 001 C280 0 047 R224 10k R155 470 C231 0 001 C467 8p C187 8p R223 1 5k L25 0 12 H C244 6p D72 HVU131TRF C368 0 001 J7 C346 0 001 R40 4 7k W1 R28 2 2k FI4 ALFY450F K 1 2 3 4 5 EUR ITA only 5 6 3 1 7 8 J1 J2 FI2 FL 300 R21 470 R59 22k C148 6p R93 15 C144 6p R95 47 R94 47 R89 47 ...

Page 48: ...59 3p C158 3p L35 18nH R113 22 R111 4 7k L37 22nH L38 22nH R115 820 C465 0 001 R108 47 C157 10p C156 0 001 R106 680 R105 100k D22 MA862 D23 MA77 R104 1k R102 10k R101 2 2k C152 2 2 R100 47k C153 10p C154 10p R103 270 R153 100 L33 18nH R107 4 7k C150 5p L32 33nH R98 47k R99 47 R96 33k R97 330 L31 27nH R92 120k C140 0 001 R87 18k R86 330 C136 0 5p L30 8 8nH R84 330k C133 0 001 C132 0 001 R83 220k R8...

Page 49: ... used for all adjustments 5 DO NOT keep power ON for a long time when the transceiver is defective 6 DO NOT transmit power into a signal generator or a sweep generator 7 ALWAYS connect a 50 dB or 60 dB attenuator between the transceiver and a deviation meter or spectrum analyser when using such test equipment 8 READ the instructions of test equipment thoroughly before connecting equipment to the t...

Page 50: ...A 5570MI S 1999 by Icom Inc 6 9 16 Kamihigashi Hirano ku Osaka 547 0002 Japan DUAL BAND FM TRANSCEIVER iC 2800h iC 2800h Downloaded by Amateur Radio Directory ...

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Icom IC-2800, Service Manual

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Summary of Contents for IC-2800

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