Icom IC-F7000 - page 11

3 - 2

‘‘IN CASE OF USING INTERNAL REFERENCE SIGNAL

NEED TO MODIFY the PLL unit (bottom side) as below. Otherwise the transceiver does not work properly.

qUnsolder connect points (CP5041) on the PLL unit.

wSolder R5251 to the original position, or solder disconnect points (CP5251) on the PLL unit.

‘‘CONNECTION

Connect the external reference oscillator to the IC-F7000 as below.

qwCP5251

CP5041

External reference

IC-F7000 front panel

[REF IN]

Frequency : 32 MHz

Level : 2.0–8.0 Vp-p at 15 kΩ

impedance

Contents

Main INTRODUCTION DANGER ORDERING PARTS REPAIR NOTES TABLE OF CONTENTS SECTION 1 SPECIFICATIONS IC-F7000 TRANSMITTER RECEIVER MODE RC-26 REMOTE CONTROLLER SP-25 EXTERNAL SPEAKER 1 - 3 231 (9 3 32) 155 (6 3 32) 5.4 ( ) (d) 5.4 (7 32)5.4 (7 32) 1 - 4 SECTION 2 INSIDE VIEWS 2 - 1 RC-26 HM-146 (MIC UNIT) IC-F7000 (BOTTOM VIEW) 2 - 2 IC-F7000 (TOP VIEW) SECTION 3 ABOUT EXTERNAL REFERENCE SIGNAL INPUT Page SECTION 4 CIRCUIT DESCRIPTION 4-1 RECEIVER CIRCUITS RECEIVER CONSTRUCTION UNIT 4-1-1 RF FILTER CIRCUIT (PLL AND MAIN UNITS) UNIT 4-1-6 AGC CIRCUIT (DSP AND MAIN UNITS) AGC CIRCUIT 4-1-7 AF AMPLIFIER CIRCUIT (DSP AND MAIN UNITS) DSP CIRCUIT 4-2 TRANSMITTER CIRCUITS 4-2-1 MICROPHONE AMPLIFIER CIRCUIT (RC-26, MAIN AND DSP UNITS) TRANSMIT CONSTRUCTION 4-2-2 DSP TRANSMITTER CIRCUIT (DSP UNIT) 4-2-3 SPEECH COMPRESSOR CIRCUIT (DSP UNIT) 4-2-5 RF CIRCUIT (MAIN, PA, PLL UNITS AND DRI- VER BOARD) RF FILTER CIRCUIT 4-2-6 ALC CIRCUIT (PLL AND MAIN UNITS) 4-2-7 APC CIRCUIT (PLL AND MAIN UNITS) ALC CIRCUIT 4-3 PLL CIRCUITS 4-3-1 GENERAL 4-3-2 1ST LO PLL (PLL UNIT) 4-3-3 2ND LO AND REFERENCE OSCILLATOR CIRCUITS (PLL UNIT) 4-3-3 3RD LO CIRCUIT (PLL UNIT) 4-4 FRONT UNIT (RC-26) 4-4-1 LCD CIRCUIT (DISPLAY AND CONNECT BOARDS) 4-4-2 MICROPHONE CIRCUIT (DISPLAY BOARD) 4-4-3 KEYS BACK LIGHTS CIRCUIT (DISPLAY BOARD) 4-4-4 RESET CIRCUIT (DISPLAY BOARD) 4-5 POWER SUPPLY CIRCUITS 4-5-1 PA UNIT VOLTAGE LINE 4-5-2 DISPLAY BOARD (RC-26) VOLTAGE LINE 4-5-4 MAIN UNIT VOLTAGE LINE MAIN CPU (MAIN UNIT; IC3303)continued 4-6 PORT ALLOCATIONS 4-6-1 MAIN CPU (MAIN UNIT; IC3303) 4-6-3 OUTPUT EXPANDER IC FOR THE PLL UNIT (MAIN UNIT; IC3602) 4-6-5 OUTPUT EXPANDER IC (MAIN UNIT; IC3603) 4-6-4 OUTPUT EXPANDER IC FOR BANDPASS FIL- TERS (MAIN UNIT; IC3604) 4-6-6 D/A CONVERTER IC (MAIN UNIT; IC3606) 4-6-7 FRONT CPU PORT ALLOCATIONS (RC-26, DISPLAY BOARD; IC8201) 5-1 PREPARATION REQUIRED TEST EQUIPMENT SECTION 5 ADJUSTMENT PROCEDURES CAUTION! iF7000 RC-26 CONNECTION ENTERING THE ADJUSTMENT MODE 5-2 PLL UNIT ADJUSTMENT Page 5-3 PA AND FILTER UNITS ADJUSTMENT Page 5-4 RECEIVER ADJUSTMENTS Page 5-5 TRANSMITTER ADJUSTMENTS TRANSMITTER ADJUSTMENTSContinued 6 - 1 SECTION 6 PARTS LIST 6-1 IC-F7000 [MAIN BOARD] 6 - 2 6 - 3 6 - 4 6 - 5 [MAIN UNIT][MAIN UNIT] 6 - 6 [MAIN UNIT][MAIN UNIT] 6 - 7 [PLL UNIT][MAIN UNIT] [PLL UNIT] 6 - 8 [PLL UNIT][PLL UNIT] 6 - 9 [PLL UNIT][PLL UNIT] 6 - 10 [PA UNIT][PLL UNIT] 6 - 11 [PA UNIT][PA UNIT] [DSP UNIT] 6 - 12 [DSP BOARD][DSP BOARD] 6 - 13 [DRIVER BOARD][DSP BOARD] 6 - 14 [VARISTOR-1 BOARD] [VARISTOR-2 BOARD] [FRONT UNIT] 6 - 15 6-2 RC-26 [DISPLAY BOARD] [DISPLAY BOARD] [REAR BOARD][DISPLAY BOARD] [CONNECT BOARD] 6 - 16 6-3 HM-146 6 - 17 SECTION 7 MECHANICAL PARTS AND DISASSEMBLY [FRONT PARTS] 7-3 IC-F7000 7-2 HM-146 7-1 RC-26 RC-26 [ACCESSRIES] IC-F7000 [PLL UNIT] [DSP BOARD] RC-26 C O to RC-26 DISPLAY board J8701 HM-146 IC-F7000 Unit abbreviations (C): CHASSIS PARTS (M): MIC UNIT to RC-26 FRONT parts W8002 8 - 1 SECTION 8 SEMI-CONDUCTOR INFORMATION (Symbol: 103) (Symbol: 20 B2) (Symbol: SC) (Symbol: 3J) RB706F-40 T106 RD10M B3 RD20E B2 SB20 03P UM9957F/TR (Symbol: 7T) (Symbol: 5C) SECTION 9 BOARD LAYOUTS 9-1 HM-146 TOP VIEW 9-2 RC-26 9-2-1 CONNECT BOARD 9-2-2 REAR BOARD BOTTOM VIEW (CONNECT BOARD) BOTTOM VIEW (MIC UNIT) BOTTOM VIEW (REAR BOARD) Page BOTTOM VIEW (DISPLAY BOARD) 21 9 - 4 1 85 9-3 IC-F7000 9-3-1 DSP BOARD 9 - 6 BOTTOM VIEW (DSP BOARD) from PLL unit J7321 from/to PA 9 - 7 M2Lo W5201 9-3-2 MAIN UNIT Page to CHASSIS W4501 GND HV13V from PLL unit J7001 9 - 9 FLIN W7001 9-3-3 PA UNIT Page to PA unit J6401 FLIN W7001 to MAIN unit J601 M1Lo W4503 from CHASSIS unit J4501 ANT 9-3-4 PLL UNIT Page Page BOTTOM VIEW (DRIVER BOARD) 9-3-7 VARISTOR-2 BOARD 9 - 14 SECTION 10 BLOCK DIAGRAM Bus LINE - CPU PLL UNIT SECTION 11 WIRING DIAGRAM PLL UNIT MAIN UNIT CONNECT BOARD DISPLAY BOARD MIC UNIT SP-25 SECTION 12 VOLTAGE DIAGRAMS REAR BOARD (RC-26) 12-1 RC-26 and HM-146 DISPLAY BOARD (RC-26)MIC UNIT (HM-146) CONNECT BOARD (RC-26) 12-2 IC-F7000 UNIT (2) 12-2-1 MAIN UNIT (1) MAIN UNIT (1) 12 - 3 12-2-2 MAIN UNIT (2) MAIN UNIT (2) UNIT (1) UNIT (3) VOLTAGE LINE 12-2-3 MAIN UNIT (3) MAIN UNIT (3) UNIT (2) Explanatory notes 12 - 5 12-2-4 PA UNIT VARISTOR-2 BOARD VARISTOR-1 BOARD DRIVER BOARD 12 - 6 12-2-5 PLL UNIT (1) PLL UNIT (1) PLL UNIT (2) 12 - 7 12-2-6 PLL UNIT (2) PLL UNIT (1) PLL UNIT (2) 12 - 8 12-2-7 DSP BOARD -2V 6V 4 XP4312