Introduces the maintenance information of IC-R2 receiver, including precautions, ordering parts, and maintenance instructions.
The document serves as a technical guide for servicing the ICOM IC-R2 communications receiver. It covers general safety precautions, ordering replacement parts, and specific repair notes to ensure proper handling during maintenance.
Key sections include detailed specifications such as frequency ranges (0.495–1309.995 MHz), sensitivity levels, and power requirements. The manual provides inside views of the Logic and RF units, step-by-step disassembly instructions for the rear panel and internal modules, and comprehensive circuit descriptions covering receiver, PLL, and power supply circuits.
| Receiver system | Triple super heterodyne |
|---|---|
| 1st Intermediate frequency | 266.7 MHz |
| 2nd Intermediate frequency | 19.65 MHz |
| 3rd Intermediate frequency | 450 kHz |
| Number of memory channels | 450 channel |
| Frequency stability | +6 ppm max. |
| Usable temperature range | -10°C to +60°C |
| Dimensions (W x H x D) | 88(W) x 86(H) x 27(D) mm |
Never connect the receiver to an AC outlet or a DC power supply that uses more than 3.5 V, as this could cause a fire hazard.
Do not apply an RF signal of more than 20 dBm (100 mW) to the antenna connector, as this could damage the receiver's front end.
When ordering parts, include the 10-digit order numbers, component part number and name, equipment model name and unit name, and quantity required.