Icom IC-F7000 - Manuals

SECTION 3 ABOUT EXTERNAL REFERENCE SIGNAL INPUT 3 - 1 ‘ ‘ IN CASE OF USING EXTERNAL REFERENCE SIGNAL NEED TO MODIFY the PLL unit (bottom side) as below when using external reference. q Remove R5251 from the PLL unit. w Solder disconnect points (CP5041) on the PLL unit. 1 4 8 1 4 8 5 5 CP5041 R5251 w...

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. q Unsolder connect points (CP5041) on the PLL unit. w Solder R5251 to the original position, or solder disconnect points (CP5251) on the PLL unit...

4 - 1 SECTION 4 CIRCUIT DESCRIPTION 4-1 RECEIVER CIRCUITS 4-1-1 RF FILTER CIRCUIT (PLL AND MAIN UNITS) Received signals from the antenna connector are applied tothe transmit/receive switching and protection relay (PLL unit;RL7301) which is controlled by the CPU via the “TRXS” line.The signals pass t...

4 - 2 4-1-5 DSP RECEIVER CIRCUIT (MAIN AND DSP UNITS) The DSP (Digital Signal Processor) circuit enables digital IFfilter, digital noise reduction, digital PSN (Pulse ShiftNetwork), phase demodulation, digital automatic notch, andetc. The 3rd IF signal is applied to the IF amplifier (MAIN unit;IC100...

4 - 3 4-2 TRANSMITTER CIRCUITS 4-2-1 MICROPHONE AMPLIFIER CIRCUIT (RC-26, MAIN AND DSP UNITS) The microphone amplifier circuit amplifies microphone audiosignal to a level needed for the DSP circuit. Audio signals from the [MIC] connector (J8701, pin 6) areamplified at the AF amplifier (IC8280, pin 3...

4 - 4 4-2-5 RF CIRCUIT (MAIN, PA, PLL UNITS AND DRI- VER BOARD) The RF circuit amplifies operating (transmitting) frequencyto obtain 100 W (125 W: 1.6–4 MHz for [OTH]) of RF output. The RF signals from the 1st mixer circuit pass through thelow-pass filter (L702, L703, C706, C707, C709–C711,C721), an...

4 - 5 4-2-6 ALC CIRCUIT (PLL AND MAIN UNITS) The ALC (Automatic Level Control) circuit controls the gainof IF amplifiers in order for the transceiver to output a con-stant RF power even when the supplied voltage shifts, etc. The RF power level is detected at the power detector circuit(PLL unit; D727...

4 - 6 The detected signal output from the PLL IC (pin 2) is con-verted into a DC voltage (lock voltage) at the loop filter andthen fed back to one of the VCO circuits (Q5521, D5521,L5523). The oscillated signal from the buffer amplifier (Q5601) isalso applied to the MAIN unit via the “M1LO” line as ...

4 - 7 4-5-3 PLL UNIT VOLTAGE LINE 4-5 POWER SUPPLY CIRCUITS 4-5-1 PA UNIT VOLTAGE LINE LINE HV13 HV S13V 13.8 PA8V T8V DESCRIPTION The voltage from an external power supply. The same voltage as the HV13 line passedthrough the fuse (F6701). The same voltage as the HV13 line passesthrough the switchin...

4 - 8 Pin number 90 92 93 94 97 Port name ECK ASEN TEMP NSEN RFML Description Outputs serial clock signal for theEEPROM (IC3301, pin 6). Input port for the SEND signal fromthe accessory connector (J1801). Input port for the power amplifier tem-perature signal from the PA unit. Input port for the SEN...

5 - 1 5-1 PREPARATION When adjusting the contents on page 5-9, a JIG CABLE (see illustration as below) is required.Some adjustments must be performed on the “ADJUSTMENT MODE”. Entering the “ADJUSTMENT MODE”, refer to the nextpage in detail. ■ REQUIRED TEST EQUIPMENT SECTION 5 ADJUSTMENT PROCEDURES E...

5 - 2 ■ ENTERING THE ADJUSTMENT MODE 1 Turn the power OFF. 2 Push and hold the HM-146’s [CALL] and RC-26’s [EMG] switches, then turn the power ON. ■ OPERATING ON THE ADJUSTMENT MODE • Enter the TX adjustment from the MAIN menu. : Push the RC-26 [1] button • Enter the RX adjustment from the MAIN menu...

5 - 3 5-2 PLL UNIT ADJUSTMENT LPL LOCKVOLTAGE HPL LOCKVOLTAGE REFERENCEFREQUENCY 1 2 1 2 1 2 • Operating frequency : 0.5000 MHz• Mode : J3E • Receiving • Operating frequency : 0.4999 MHz• Receiving • Operating frequency : 29.9999 MHz• Mode : J3E • Receiving • Operating frequency : 0.0300 MHz• Receiv...

5 - 4 C5521 HPL lock voltage adjustment CP5402 HPL lock voltage ckeck point L5204 L5203 R5255 Reference frequency adjustment P5201 Reference frequency ckeck point CP5302 LPL lock voltage ckeck point L5305 LPL lock voltage adjustment • PLL UNIT TOP VIEW PLL unit • IC-F7000 BOTTOM VIEW

5 - 5 5-3 PA AND FILTER UNITS ADJUSTMENT IDLINGCURRENT(For drive FETs) (For final transistors) SWRDETECTOR 1 2 • Operating frequency : 12.2350 MHz• Mode : J3E • Apply no audio signal to the [MIC] con- nector. • Disconnect J6702.• Preset R6304 and R6412 on the PA unit to max. counter clockwise. • Pre...

5 - 6 SWR detector check point CP7331 (REF line) Connect to ground CP7332 (FOR line) SWR detector adjustment C7275 R6304 Idling current adjustment(For drive FETs) R6412 Idling current adjustment(For final transistors) • PA UNIT TOP VIEW • PLL UNIT BOTTOM VIEW PLL unit • IC-F7000 BOTTOM VIEW

5 - 7 5-4 RECEIVER ADJUSTMENTS ”TOTAL GAIN”, “S-METER” and “DSC PEAK” adjustments must be performed at “ADJUSTMENT MODE”. NOISE NULLPOINT RECEIVERGAIN TOTAL GAIN S-METER 1 1 1 1 2 • Operating frequency : 0.5 MHz• Mode : A3E • Preset L209 parallel to top edge of its chassis. • Preset L401, L403, L404...

5 - 8 Preset to max. counter clockwise Preset to top edge of its chassis L401L403L801L404L405 L209 Noise null point adjustment R217R218 Noise null point adjustment L207 L210 L211 L208 Set to same height here. L209 PRESETTING [OK] • MAIN UNIT TOP VIEW • RC-26 FRONT PANEL MAIN unit • IC-F7000 BOTTOM V...

5 - 9 5-5 TRANSMITTER ADJUSTMENTS The following adjustments must be performed at “ADJUSTMENT MODE” after “SWR DETECTOR” and “RECEIVER” ADJUST-MENTS in the SECTION 5-3 and 5-4. TRANSMITPEAK ANDTOTAL GAIN(TX PEAK) (TOTAL GAIN) TX POWER(HIGH) (MIDDLE) (LOW) SWRDETECTOR 1 2 1 2 1 2 1 2 1 2 • While pushi...

5 - 10 [OK] [VOL] DIAL R6516 Ic-APC adjustment CP7332 Connect to ground • PA UNIT TOP VIEW • RC-26 FRONT PANEL TRANSMITTER ADJUSTMENTS–Continued 1 • Operating frequency : 13.810 MHz • Mode : J3E • Set the audio generator as: Frequency : 1.5 kHz Level : 100 mV • Preset R6516 on the PA unit to center ...

[MAIN UNIT] [MAIN UNIT] IC1 1110004080 S.IC µPC2709T-E3 T IC101 1130011640 S.IC IS62C1024L-45T <ACE> T IC301 1110004080 S.IC µPC2709T-E3 T IC501 1110005460 S.IC TA4107F (TE12L) T IC901 1110005460 S.IC TA4107F (TE12L) T IC1001 1130006220 S.IC TC4W53FU (TE12L) T IC1002 1110005450 S.IC TS522IDT T...

Screw abbreviations BT, B0, A0: Selt-tapping PH: Pan head BiH: Binding head FH: Flat head SUS: Stainless NI: Nickel BS: Brass NI-ZU: Nickel-Zinc ZK: Black 7 - 2 2 1 3 5 4 6 TUNE SCAN 8 7 9 MUTE 0 CALL CLR OK MC4001 (F) ACCESSORIES W4001 (F) EP4002 (F) F4002 (F) MP8103 (R) MP8101 (R) MP8102 (R) MP810...

Unit abbreviations (F): FRONT PARTS (D): DISPLAY BOARD (C): CONNECT BOARD (R): REAR BOARD (A): ACCESSORIES MP8017 (F) DISPLAY BOARD MP8006 (F) MP8001 (F) MP8016 (F) MP8009 (F) MP8003 (F) DS8920 (C) MP8023 (F) MP8002 (F) CONNECT BOARD MP8024 (F) MP8015 (F) J8701 (D) S8201 (D) W8002 (F) to IC-F7000MAI...

8 - 1 SECTION 8 SEMI-CONDUCTOR INFORMATION • TRANSISTOR AND FET’S B E C B E C B B E E C C B E C B E C B E C B E C B C E B E C B E C B E C B C E B C E B C E D G S S D G B E C B E C B E C G1 G2 S D G S D S S D G G S D S S D G G S D S G S S D G S D E1 C2 B1 C1 E2 B2 E1 C2 B1 C1 E2 B2 E1 C2 B1 C1 E2 B2 ...

1 10 20 LOCK 11 DN UP PTT 2 8 to RC-26DISPLAY board J8701 1 7 J1 UDC PTT MIC T ONE 8V DIM MICE GND 9 - 1 SECTION 9 BOARD LAYOUTS 9-1 HM-146 • TOP VIEW 9-2 RC-26 9-2-1 CONNECT BOARD• TOP VIEW 9-2-2 REAR BOARD• TOP VIEW F13H 2 10 1 9 to DISPLAYboard J8702 J8802 AFIN AFIN AFO GND F13H AFIN AFO GND GND ...

VOLTAGE LINE Explanatory notes TX LINE RX LINE COMMON LINE Bus LINE +5 REG A/D A/D D/A D/A D/A D/A LPF LPF AGCAMP LPF AF AMP BUFF BUFF LPF LPF BUFF IF AMP IF AMP BPF CERAMIC LPF IF AMP BPF LPF LPF BPF BPF BPF BPF BPF BPF BPF BPF ATT YGRAMP IC1 LPF ATT HPF LPF ATT LPF AMP AMP AMP AMP LPF LPF LPF LPF ...

11 - 1 SECTION 11 WIRING DIAGRAM Explanatory notes TX LINE RX LINE COMMON LINE GND NSEN DSAF DSAFE DSMD GND DSMDE H5V RXPC DTRM NMRS NMEORSSW NMEI2 NMEI L6M GND GND L4M REF L1M FOR THRM L2M S13V TRXS L22M L12M GNDNSENDSAFDSAFEDSMD GND DSMDEH5VRXPCDTRMNMRSNMEORSSWNMEI2NMEI L6M GND GND L4M REF L1M FOR...

12 - 1 SECTION 12 VOLTAGE DIAGRAMS 12-1 RC-26 and HM-146 VOLTAGE LINE Explanatory notes TX LINE RX LINE FH13 10V 8V 9V FH13 FH13 FH13 FH13 FH13 FH13 FH13 J8802 AFIN 5V MCE MC FE1 FE1 8V 8V FH13 FH13 FH13 10V UDC TONE TONE 0.001 C8246 input impedance:10M Ω range:20V unit:V Digital tester (TX):no modu...

12 - 2 12-2 IC-F7000 12-2-1 MAIN UNIT (1) VOLTAGE LINE Explanatory notes TX LINE RX LINE COMMON LINE B3 B6 UNIT (2) MAIN 1LoB B0 1LoB ALC 1LoB S13V RXS 5V S13V -5V 5V unit J6701 to PA S13V unit J7331 to PLL SP-25 to R13V S13V MRX YGR HV FMOD FMOD 5V - 5V 5V 5V S13V R15146.8 8V S13V S13V S13V S13V 5V...

12 - 5 12-2-4 PA UNIT VOLTAGE LINE Explanatory notes TX LINE from MAINunit J1 J6702 YGR to MAINunit J1901 PONHVHVFANCS13VS13VS13VS13VS13V J6701 TSCSTUM3STATKEY J6703 FAN+GND J6501 GNDGNDGNDGND EP6602 HV13VHV13VHV13VHV13V EP6603 to CHASSIS W4501 from PLLunit J7001 J6401 FLIN R6110 39 C6202 0.1 Q6851P...

12 - 8 12-2-7 DSP BOARD VOLTAGE LINE Explanatory notes TX LINE RX LINE COMMON LINE 1 5 23 4 TMS320VC33PGEA120 IC9301 1 A20 2 VSS 3 A19 4 A18 5 A17 6 DVDD 7 A16 8 A15 9 VSS 10 A14 11 A13 12 CVDD 13 A12 14 A11 15 DVDD 16 A10 17 A9 18 VSS 19 A8 20 A7 21 A6 22 A5 23 DVDD 24 A4 25 VSS 26 A3 27 A2 28 CVDD...