Icom IC-756PRO III Manual

IC-756PRO Alignment Procedure

PLL Board

Reference Oscillator

- Connect Frequency counter to P81 on the PLL board

- Adjust L53 and R33 for 64.000000MHz

- Connect RF volt meter to P81 on the PLL board

- Adjust L81 and L82 for maximum level

LPL A

- Set display to 0.0300000MHz, LSB

- Connect multi-meter to check point LPA

- Adjust C154 for 2.0V

VCO A

- Connect multi-meter to check point LVA

- Set display to 7.999999MHz, USB

- Adjust C278 for 4.3V

- Set display to 19.999999MHz, USB

- Adjust C258 for 4.3V

- Set display to 44.999999MHz, USB

- Adjust C228 for 4.3V

- Set display to 60.000000MHz, USB

- Adjust C208 for 4.3V

1LOA

- Connect RF volt meter to P351

- Set display to 0.030000MHz

- Verify RF output level for 0dBm or higher

- Set display to 7.999999MHz

- Verify RF output level for 0dBm or higher

- Set display to 8.000000MHz

- Verify RF output level for 0dBm or higher

- Set display to 19.999999MHz

- Verify RF output level for 0dBm or higher

- Set display to 20.000000MHz

- Verify RF output level for 0dBm or higher

- Set display to 44.999999MHz

- Verify RF output level for 0dBm or higher

- Set display to 45.000000MHz

- Verify RF output level for 0dBm or higher

- Set display to 60.000000MHz

- Verify RF output level for 0dBm or higher

LPL B

- Connect multi-meter to check point LPB

- Set display to 0.0300000MHz, USB

- Adjust C454 for 2.0V

VCO A

- Connect multi-meter to check point LVB

- Set display to 7.999999MHz, USB

- Adjust C578 for 4.3V

- Set display to 19.999999MHz, USB

- Adjust C558 for 4.3V

- Set display to 44.999999MHz, USB

- Adjust C528 for 4.3V

- Set display to 60.000000MHz, USB

- Adjust C508 for 4.3V

1LOA

- Connect RF volt meter to P651

- Set display to 0.030000MHz

- Verify RF output level for 0dBm or higher

- Set display to 7.999999MHz

- Verify RF output level for 0dBm or higher

- Set display to 8.000000MHz

- Verify RF output level for 0dBm or higher

- Set display to 19.999999MHz

- Verify RF output level for 0dBm or higher

- Set display to 20.000000MHz

- Verify RF output level for 0dBm or higher

- Set display to 44.999999MHz

- Verify RF output level for 0dBm or higher

- Set display to 45.000000MHz

- Verify RF output level for 0dBm or higher

- Set display to 60.000000MHz

- Verify RF output level for 0dBm or higher

3LO

- Connect RF volt meter to P701

- Verify RF output level for –16dBm or higher

S3LO

- Connect RF volt meter to P801

- Verify RF output level for –7dBm or higher

S2LO

- Connect RF volt meter to P901

- Verify RF output level for 0dBm or higher

Marker

- Connect oscilloscope to P851

- Verify output signals for 4Vpp or higher

PA Board

Driver idling current

- Set the mode to CW

- Open W29 leads, and connect current meter

- Transmit

- Adjust R11 for 100mA

- Close W29

Final idling current

- Set the mode to CW

- Open L8 side of R28 leads, and connect current meter

- Transmit

- Adjust R18 for 500mA

- Close R28

FAN

- Install multi-meter between J11-1 and ground

- Transmit

- Verify the voltage between 6V and 8V

- Receive

- Jumper between CP1 and CP2

- Verify the voltage for 12V

Main Board

Initial setup for alignment

- Reset the microprocessor (Hold “F-INP”and “M-CL”buttons and turning radio on)

- Setup the radio as below

- Frequency: 14.100000MHz

- Filter: 2.4KHz

- Mode: USB

- Pre-amp: P.AMP1

- Antenna: ANT1

- Meter: Po meter

- Attenuater: OFF

- AGC: MID

- VOX: OFF

- Tuner: OFF

- Monitor: OFF

- Noise Blanker: OFF

- NR SW: OFF

- RF/SQL: Center

- Balance: Center

- NR Level: CCW

- MIC Gain: Center

- RF Power: CW

- COMP Level: Center

- KEY Speed: Center

- BK-IN Delay: Center

- Notch: OFF

- Notch Center

- CW Pitch: Center

- RIT: OFF

- Delta TX: OFF

Transmitter

- Connect RF power meter to ANT connector

- Connect AF signal generator to mic connector

- Apply 1.5KHz/1mV signals to mic connector

- Transmit

- Adjust MIC GAIN pot on the front panel for 50W

- Adjust L261 for maximum RF output power

Transmit Total Gain

- Connect RF power meter to ANT connector

- Connect AF signal generator to mic connector

- Apply 1.5KHz/1mV signals to mic connector

- Set MIC GAIN pot on the front panel to center

- Adjust R263 for 50W

IC APC

- Connect RF power meter to ANT connector

- Set radio to 3.550000MHz, RTTY

- Ground CP501

- Transmit

- Adjust R545 for 23A

HF RF Power

- Connect RF power meter to ANT connector

- Set radio to 14.100000MHz, RTTY

- Transmit

- Adjust R507 for 105W

50MHz RF Power

- Connect RF power meter to ANT connector

- Set radio to 50.000000MHz, RTTY

- Transmit

- Adjust R509 for 100W

FM transmit modulation

- Set Radio to follows

- Frequency: 29.60000MHz

- Mode: FM

- Filter: 15KHz

- RF POWER: Maximum

- Mic Gain: Center

- Connect Modulation analyzer to ANT connector

- Connect AF signal generator to mic connector

- Apply 1KHz/10mV signals to mic connector

- Transmit

- Adjust R2227 on DSP board for 4.5KHz

- Apply 1KHz/1mV signals to mic connector

- Verify transmit modulation for 3.5KHz

AM Carrier Power

- Set radio to 14.100000MHz AM

- Set RF POWER pot to maximum

- Connect RF Power meter to Antenna connector

- Connect AF signal generator mic connector

- Apply no signals to mic connector

- Transmit

- Adjust R510 for 40W

- Apply 1KHz/10mV signals to mic connector

- Adjust R2229 on DSP board for 90%

Speech processor

-Set R392 to Center

RX Receiver

- Set radio to follows

- Frequency: 14.1015MHz

- Mode: USB

- Shift: 0

- Filter 2.4KHz

- Connect RF signal generator to ANT connector

- Connect SINARDER to external SP Jack

- Receive

- Adjust L111, L112 and L113 for maximum level

RX Total Gain

- Set radio to follows

- Frequency: 14.1015MHz

- P AMP: OFF

- Mode: USB

- Shift: 0

- Filter 2.4KHz

- Connect RF signal generator to ANT connector

- Connect SINARDER to external SP Jack

- Apply 14.1015MHz/54dBu signals to ANT connector

- Apply no signals to ANT connector

- Adjust R210 for 30dB between with signals and without signals

Noise Blanker

- Set radio to follows

- Frequency: 14.1015MHz

- P AMP: OFF

- NB: OFF

- Mode: USB

- Shift: 0

- Filter 2.4KHz

- Set R271 to center

- Connect noise generator to ANT connector

- Connect oscilloscope to CP271

- Apply noise signals to ANT connector

- Adjust L272 for maximum level

- Turns noise blanker on

- Apply 20dBu noise signals to ANT connector

- Adjust R271 for removing noise signals

RF board

- Setup the radio as below

- Frequency: 14.100000MHz

- Mode: USB

- Attenuater: OFF

- Dual watch: OFF

- RF/SQL: Center

- RF Power: Maximum

- R863: Center

- R872: Center

Transmitter

- Connect RF power meter to ANT connector

- Connect AF signal generator to mic connector

- Connect RF volt meter to J151

- Apply 1.5KHz/1mV signals to mic connector

- Transmit

- Adjust L713. L712 and L711 for maximum voltage

Otros manuales para IC-756PRO III

Otros manuales de Transceptor de Icom

Manuales populares de Transceptor de otras marcas

Yaesu

Yaesu FT-7B Manual de usuario

Kenwood

Kenwood ProTalk TK-3201 Manual de usuario

Texas Instruments

Texas Instruments TLK10232 Manual de usuario

Mizuho

Mizuho MX-2 Guía del producto

Kenwood

Kenwood TK-3180 Manual de operación y mantenimiento

Blitz

Blitz MJ-398U Manual de usuario

Utilicom

Utilicom LongRanger 2050 Manual de usuario

Standart

Standart HX290UKA Manual de usuario

Altronix

Altronix Pace1PTM Manual de usuario

Kirisun

Kirisun PT2208 Manual de usuario

ELECRAFT

ELECRAFT KX2 Manual de usuario

Zodiac

Zodiac K3 Manual de usuario

Assa Abloy

Assa Abloy SecureComm HKC GSM-WIFI U Manual de usuario

Kenwood

Kenwood TK-2217 Manual de usuario

Siemens

Siemens PSO 4000 Manual de usuario

Kenwood

Kenwood TS-590SG Manual de usuario

Midland

Midland G8E-BT Manual

ComNav

ComNav Mariner X2 Manual de usuario