The Icom MANUALA service manual provides detailed instructions for setting up, operating, and troubleshooting the device, including sections on controls, operation, disassembly, and adjustments. It also includes specifications, circuit diagrams, and a parts list to assist with maintenance and repair tasks.

• Brand: Icom
• Model: MANUALA
• Type: service manual
• File size: 5.2 MB

Manual Overview

The Icom MANUALA service manual provides detailed instructions for troubleshooting, error diagnostics, calibration, and board-level guidance. Troubleshooting is structured through flowcharts and diagnostic procedures, focusing on identifying and resolving common issues with the device. Error codes are clearly listed with corresponding diagnostic steps to facilitate quick identification of problems. Calibration and adjustments are covered in Section 7, detailing procedures for PLL, receiver, and FM unit adjustments to ensure optimal performance. Board-level guidance is provided in Section 12, which includes board layouts and component identification to assist in repairs and replacements. The manual emphasizes precise calibration techniques and provides circuit and voltage diagrams in Section 8 for in-depth analysis. Technicians are advised to follow the outlined procedures closely to maintain the device’s specifications and performance standards. The manual is a comprehensive resource for maintaining and repairing the Icom MANUALA, ensuring technicians have the necessary information for effective service.

Quick Issues Covered

• Diagnose power-up failures with detailed troubleshooting steps.
• Adjust PLL and receiver settings for optimal performance.
• Trace circuits using comprehensive schematic diagrams for fault isolation.

Overview

The product is a receiver with a quadruple conversion superheterodyne system and continuous bandwidth control. It covers frequencies from 0.1 MHz to 30 MHz, with variations for Australian and German versions. The manual includes specifications, controls and their functions, operation, disassembly, adjustments, circuit and voltage diagrams, IC ratings, parts list, schematic diagram, and board layout.

Specifications

• Number of Semiconductors
• Transistors 90
• FETs 19
• ICs (including CPU) 47
• Diodes 237
• Frequency Coverage 0.1 MHz ~ 30 MHz
• Frequency Control CPU based 10-Hz step digital PLL synthesizer with dual VFO system
• Frequency Readout 6-digit 100-Hz readout
• Frequency Stability Less than 200 Hz after switch ON 1 min. to 60 mins., and less than 30 Hz after 1 hour. Less than 500 Hz in the range of 0°C to +50°C
• Power Supply Requirements 117 V or 235 V + 10% 50 ~ 60 Hz 30 VA
• Antenna impedance 50 ohms unbalanced
• Weight 7.5 kg (16.5 Ibs.)
• Dimensions 111 (H) x 286 (W) x 276 (D) mm
• Receiving System Quadruple conversion superheterodyne with continuous bandwidth control
• Receiving Modes Ai, AgJ (USB, LSB), F, (output FSK audio signal), As, Fs
• IF Frequencies 1st 70.4515 MHz
• 2nd 9.0115 MHz
• 3rd 455 kHz
• 4th 9.0115 MHz (except F3)
• 2nd IF Center Frequency SSB (A3J) AM (Az) 9.0116 MHz
• CW (A,) RTTY (F,) 9.0106 MHz
• FM (F5) 9.0100 MHz
• Sensitivity (when preamplifier is ON) Less than 0.15 microvolt (0.1 ~ 1.6 MHz: 1 microvolt) for 10 dB S+N/N
• AM Less than 0.5 microvolt (0.1 ~ 1.6 MHz: 3 microvolts)
• FM Less than 0.3 microvolt for 12 dB SINAD (1.6 ~ 30 MHz)
• Selectivity SSB, CW, RTTY 2.3 kHz at ~6 dB
• 4.3 kHz at -60 dB
• CW-N, RTTY-N 500 Hz at ~6 dB
• 1.5 kHz at —-60 dB
• AM 6 kHz at ~6 dB
• 15 kHz at —50 dB
• FM* 15 kHz at —6 dB
• 25 kHz at —60 dB
• Spurious Response Rejection Ratio More than 60 dB
• Audio Output More than 3 watts
• Audio Output Impedance 8 ohms

Controls & Indicators

The front-panel controls and indicators include:

– Dimmer switch
– Frequency display
– Scan start/stop button
– VFO switch
– VFO equalizing button
– S-meter
– Frequency transfer button
– AGC timing switch
– Speech synthesizer switch
– NB timing switch
– Remote control enable indicator
– NB level control
– Remote control sensor window
– Noise blanker switch
– Keypad
– Mode select switches
– Power switch
– Memory function key
– Phones jack
– Recorder jack
– PBT control
– Preamp/ATT switch
– Notch filter control
– Notch filter switch
– Memory channel select switch
– RF gain control
– Filter switches
– VFO/memory switch
– Dial lock switch
– Squelch control
– Band select function switch
– Tone control
– Mode selective scan switch
– Tuning rate switch
– Remote control switch
– Tuning control

Installation / Setup

Refer to the PDF for details.

Operation

Refer to the PDF for details.

Troubleshooting & Error Codes

Refer to the PDF for details.

Safety & Warnings

Refer to the PDF for details.

Download MANUALA Service manual (PDF – 5.2 MB)

Icom IC-R71 Service Manual: Troubleshoot and calibrate the IC-R71 receiver. File size: 5.2 MB.

• Brand: Icom-ic-r71-service
• Model: MANUALA
• Type: Service manual
• File size: 5.2 MB

Overview

Brief overview of the product.

Specifications

• Key spec 1
• Key spec 2

Controls & Indicators

Control panel/button layout.

Installation / Setup

1. Step 1…
2. Step 2…

Operation

Basic usage, modes, cycles.

Troubleshooting & Error Codes

Safety & Warnings

• Important warning…

Downloads

Download MANUALA service manual (PDF)