Icom IC-2800 Service Manual Download Page 34

Page: 34 / 50

9 - 2

The combination of this page and the previous page
shows the unit layout in the same configuration as the
actual P.C. Board.

• BOTTOM VIEW

CONTROL UNIT

TDATA

RDATA

GND

SPE

CFL+

CFL–

CFL+

CFL–

from CFL BACK LIGHT

(DS2)

EXT.
VIDEO IN
J4

UVOL
R145

USQL
R148

UDIAL
S11

VVOL
R151

VSQL
R154

VDIAL
S12

to MAIN UNIT J3

COM

R151

R154

R145

R148

S11

VGL

VSS

STV1

U/D

CPV

OEV

STV2

VDD

VGH

VCOM

VEE

STH2

GND

CPH3

CPH2

CPH1

O2H

OEH

STH1

from LCD DISPLAY DS1

SPE

from SPEAKER (SP1)

MP23

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 ...

Search results

Summary of Contents for IC-2800

Reviews:

Related manuals for IC-2800

Brands by name

Popular brands

Icom IC-2800, Service Manual

Search results

Summary of Contents for IC-2800

Reviews:

Related manuals for IC-2800

Brands by name

Popular brands