TROUBLESHOOTING

The problems described in this table are commonly encountered operational malfunctions and are usually not caused by circuit failure.

 

Problem

 

Probable Cause

Corrective Action

Page

 

 

Ref.

 

 

 

 

 

 

The transceiver will not power up

1

The power cable was connected

1 Connect the supplied DC power cable

5, 6

 

after connecting a 13.8 V DC

 

backwards.

correctly: Red ( + ); Black ( – ).

 

 

power supply and pressing the

2

One or more of the power cable

2 Look for the cause of the blown fuse(s). After

7

 

PWR switch. Nothing appears on

 

fuses are open.

inspecting and correcting any problems, install

 

 

the display.

 

 

a new fuse(s) with the same rating.

 

 

 

 

 

 

 

 

 

3

The modular plug cable was not

3 Correctly connect the modular plug cable

4

 

 

 

connected correctly.

between the front panel and main unit.

 

 

The display is too dim, even

The supply voltage is too low.

The supply voltage requirement is 13.8 V DC

 

though you selected a high

 

 

15% (11.7 V to 15.8 V DC). If the input voltage

 

 

dimmer level.

 

 

is outside this range, recharge your battery,

 

 

 

 

 

adjust your regulated power supply, and/or check

 

 

 

 

 

all power cable connections.

 

 

The frequency cannot be selected

Memory Recall was selected.

Press [VFO].

15

 

by turning the Tuning control or

 

 

 

 

 

by pressing Mic [UP]/ [DWN].

 

 

 

 

 

Most keys and the Tuning control

One of the Lock functions is ON.

Unlock all of the Lock functions.

65

 

do not function.

 

 

 

 

 

 

 

 

 

 

Memory channels cannot be

No data has been stored in any

Store data in some memory channels.

34

 

selected by turning the Tuning

memory channels.

 

 

 

control or by pressing Mic [UP]/

 

 

 

 

 

[DWN].

 

 

 

 

 

You cannot transmit even though

1

The microphone plug was not

1 Switch the power OFF, then insert the

8

 

you press Mic [PTT].

 

inserted completely into the front

microphone plug until the locking tab clicks in

 

 

 

 

panel connector.

place.

 

 

 

 

 

 

 

 

2 You selected a transmit offset that

2 Press [F], [SHIFT] repeatedly so neither “+”

27

 

 

 

places the transmit frequency

nor “–” is visible.

 

 

 

 

outside the allowable transmission

 

 

22

 

 

range.

 

 

82

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Image 88
Kenwood TM-V708A instruction manual Troubleshooting, Problem Probable Cause Corrective Action

TM-V708A specifications

The Kenwood TM-V708A is a versatile and powerful dual-band transceiver that caters to amateur radio enthusiasts seeking advanced communication capabilities. Designed for operation in the 144 MHz and 440 MHz bands, this mobile radio provides exceptional performance in various modes, making it ideal for both casual users and serious operators alike.

One of the standout features of the TM-V708A is its ability to operate in both VHF and UHF frequencies simultaneous, enabling users to monitor multiple channels at once. With a powerful output of up to 50 watts on VHF and 35 watts on UHF, the TM-V708A ensures strong, clear signals that can reach distant stations. The user-friendly interface includes a large display that provides clear readings of the frequency and other operational parameters, enhancing the overall experience for operators.

The Kenwood TM-V708A is equipped with advanced digital signal processing (DSP) technology. This feature minimizes background noise, ensuring that voice communications remain crystal clear even in challenging conditions. The built-in CTCSS and DCS capabilities add further functionality, allowing for selective calling and improved privacy during conversations.

This transceiver comes with a wide range of operating modes. It supports FM, AM, and SSB, providing flexibility based on operator preference and environmental conditions. Furthermore, the inclusion of APRS (Automatic Packet Reporting System) capabilities allows for real-time tracking and position reporting, making it an excellent tool for emergencies and outdoor adventures.

Another notable characteristic is its built-in memory. The TM-V708A can store a substantial number of memory channels, allowing users to quickly access their preferred frequencies. Additionally, the dual-receive function permits the monitoring of two different frequencies simultaneously, providing seamless communication in dynamic environments.

For enhanced usability, the TM-V708A includes multiple connectivity options. It features a variety of ports for connecting external equipment, allowing operators to customize their setup according to their specific needs. The unit also balances robust performance with portability, making it suitable for both mobile and stationary use.

In summary, the Kenwood TM-V708A is a powerful and feature-rich transceiver that combines advanced technologies and user-friendly design. Its dual-band capabilities, robust power output, and extensive operational modes make it an invaluable tool for amateur radio operators seeking to enhance their communication experience. Whether for casual chatting or emergency response, the TM-V708A stands as a premier choice in the market.