To Next PageTo Next PageHow to resolve MCP ERR on Kenwood TH-D72A?
“MCP ERR” appears on the display. (MCP-4A communications error). Loose cable connection. Ensure that the connection between the TH-D72 and the PC is correct. Your PC may be trying to process too much at once. Shut down other software that you may be running. There are other reasons as to why communications was not possible. Turn the TH-D72 power source OFF and ON, one time.
What to do if most keys don't function on my Kenwood Transceiver?
If most keys and the Tuning control do not function on your Kenwood Transceiver, it could be because one of the Lock functions is ON, so unlock all of the Lock functions. Also, the transceiver might be in Channel Display mode, so with the transceiver power OFF, press [PTT] + [A/B] + Power ON to exit Channel Display mode.
How to fix packet operation issues on Kenwood TH-D72A?
Packet operation results in no connects with other stations. The squelch is open. Select the correct squelch level so that the squelch is opened only when signals are present. You did not select the same transfer rate as the target station. Use HBAUD command to select the appropriate transfer rate.
How to resolve signal interference in full duplex mode on Kenwood TH-D72A?
When transmitting in full duplex mode, another signal is being received at the same time. You are receiving the transmitted signal of your station. Change your settings to a transmit frequency that does not receive the signal, or change the receive frequency. Example frequency setting: Transmit frequency of 146.000 MHz and receive frequency of 439.600 MHz.
How to fix issues when transmitting APRS data on Kenwood Transceiver?
You cannot transmit any APRS data. Beacon is OFF. Press [BCON] to switch Beacon ON. The squelch is open. Select the correct squelch level so that the squelch is opened only when signals are present. The data band is inactive. If you have blanked the data band, press [A/B] or [DUAL] to active it. The built-in TNC is OFF. Press [TNC] to switch ON the TNC. You selected Packet mode. Press [TNC] twice so that only “ ” appears.
How to adjust frequency range on Kenwood TH-D72A?
If you cannot select the exact desired frequency using the Tuning control on your Kenwood Transceiver, the programmable VFO frequency range might be too narrow. To expand it, go to Menu No. 130 (Prog.VFO).
How to enable DTMF tone on Kenwood TH-D72A?
If the DTMF tone cannot be transmitted on your Kenwood Transceiver, it might be because DTMF Lock is ON. To fix this, access Menu No. 181 (DTMF Keys) and select “Off.”
Why doesn't scan resume on my Kenwood TH-D72A Transceiver?
If the Scan function on your Kenwood Transceiver does not resume scanning after detecting a signal, it is because you have selected “Seek” for Menu No. 150 (Scan Resume). To change this, select either “Time” (Time- Operated) or “Carrier” (Carrier-Operated) for Menu No. 150 (Scan Resume).
What to do if nothing appears on the display of my Kenwood TH-D72A?
If nothing appears on the display or it's blinking when you switch on your Kenwood Transceiver, it could be due to several reasons: * The battery pack might be discharged. Try recharging or replacing it. * There might be an issue with the DC cable or connection. In this case, replace the cable. * The power supply fuse could be open (blown). Investigate what caused it and replace the fuse.
Why does my Kenwood TH-D72A Transceiver transmit without pressing PTT?
If your Kenwood Transceiver transmits without pressing [PTT], the VOX function is likely ON. To resolve this, access Menu No. 131 (VOX) and select “Off.”
General| Type | Handheld Transceiver |
|---|---|
| GPS | Yes |
| APRS | Yes |
| Display | LCD |
| Memory Channels | 1000 |
| PC Connectivity | USB |
| Weather Alert | Yes |
| VOX | Yes |
| Waterproof | No |
| Frequency Range | 144-148 MHz, 430-450 MHz |
| Modulation | FM |
| Power Output | 5W |
| Battery | Li-ion 7.4V 1800mAh |
Step-by-step instructions for removing the radio's case assembly.
Procedures for removing control and RF PCBs from the chassis.
Instructions for removing the GPS module from the chassis.
Important notes for correctly reassembling the radio components.
Overview of the transceiver and its frequency setup.
Details the receiver circuitry for both bands.
Details the UHF receiver circuits for both bands A and B.
Explains the transmitter circuitry, APC, and thermal protection.
Describes the oscillator and phase comparator circuits.
Details the DC-IN, battery charging, and protection circuits.
Covers reception and transmission AF signal processing.
Lists and describes components for the TX-RX unit.
Lists and describes major MCUs and ICs used in the unit.
Lists terminal functions for the control section.
Lists terminal functions for TX-RX and control connections.
Details terminal functions for FPC, PTT, COM, and USB ports.
Lists standard capacitors and resistors with their specifications.
Details specifications for chip capacitors and resistors.
Exploded view diagram of the main TX-RX unit with part numbers.
Illustrates how accessories are packed with the radio.
Guides on checking the built-in GPS operation after repair.
Step-by-step procedure to check radio operation.
Explains GPS cold start times and location data screen details.
Procedures for firmware updates and lists required test equipment.
Explains how to enter and use the service setup mode for adjustments.
Procedures for adjusting transmission frequency, APC, max deviation, and balance.
Procedures for adjusting deviation, VOX gain, and BPF settings.
Information on optional battery pack and case accessories.
Lists general and transmitter specs like frequency and power.
Lists receiver specs including sensitivity, selectivity, and circuitry.
