Kenwood FM Transceiver TK-481 Service Manual

Also see for FM Transceiver TK-481: User manual Instruction manual Specifications Instruction manual Service manual

12TK-480/481 REALIGNMENT5. PC Mode5-1. PrefaceThe TK-480/481 transceiver is programmed by using apersonal computer, programming interface (KPG-36) andprogramming software (KPG-49D).The programming software can be used with an IBM PCor compatible. Figure 1 shows the setup of an IBM PC forprogramming.5-2. Connection procedure1. Connect the TK-480/481 to the personal computer withthe interface cable.2. When the POWER switch on, user mode can be enteredimmediately. When PC sends command the radio enterPC mode, and “PROGRAM” is displayed on the LCD.When data transmitting from transceiver, the red LED isblinking.When data receiving to transceiver, the green LED isblinking.Notes:• The data stored in the personal computer must matchmodel type, when it is written into the flash memory.• Change the TK-480/481 to PC mode, then attach the in-terface cable.5-3. KPG-36 description(PC programming interface cable: Option)The KPG-36 is required to interface the TK-480/481 to thecomputer. It has a circuit in its D-subconnector (25-pin) casethat converts the RS-232C logic level to the TTL level.The KPG-36 connects the universal connector of the TK-480/481 to the computers RS-232C serial port.5-4. Programming software descriptionThe KPG-49D programming disk is supplied in 3-1/2" diskformat. The software on this disk allows a user to programTK-480/481 radios via programming interface cable (KPG-36).5-5. Programming with IBM PCIf data is transferred to the transceiver from an IBM PCwith the KPG-49D, the destination data (basic radio informa-tion) for each set can be modified. Normally, it is not neces-sary to modify the destination data because their values aredetermined automatically when the frequency range (fre-quency type) is set.The values should be modified only if necessary. Datacan be programmed into the flash memory in RS-232C for-mat via the universal connector.KPG-49D instruction manual parts No. : B62-1096-XXFig. 1KPG-36IBM-PCKPG-49D6. Firmware Programming Mode6-1. PrefaceFlash memory is mounted on the TK-480/481. This allowsthe TK-480/481 to be upgraded when new features are re-leased in the future. (For details on how to obtain the firm-ware, contact Customer Service.)6-2. Connection procedureConnect the TK-480/481 to the personal computer (IBMPC or compatible) with the interface cable (KPG-36). (Con-nection is the same as in the PC Mode.)6-3. Programming1. Start up the programming software (KPG-49D), select“firmware program” in the “Program” item, and pressthe Return key on the personal computer. This starts upthe firmware programmer.2. The top screen is displayed. Press any key to advance tothe next screen.3. Set the communications speed (normally, 57600 bps)and communications port in the Setup item.4. Set the firmware to be updated by File select (=F1).5. Turn the TK-480/481 power ON with the [S] switch helddown. Hold the switch down for two seconds until thedisplay changes to “PROG 57600”. When “PROG57600” appears, release your finger from the switch.6. Check the connection between the TK-480/481 and thepersonal computer, and make sure that the TK-480/481 isin the Program mode.7. Press F10 on the personal computer. A window opens onthe display to indicate progress of writing. When the TK-480/481 starts to receive data. the [P] icon is blinking.8. If writing ends successfully. the LED on the TK-480/481lights and the checksum is displayed.9. If you want to continue programming other TK-480/481 s,repeat steps 5 to 8.