Kenwood TH-F7E, TH-F6A Troubleshooting, Problem, Probable Cause, Corrective Action, Press A/B+

15 TROUBLESHOOTING

TROUBLESHOOTING

The problems described in the following table are commonly encountered operational malfunctions. These types of difficulties are usually caused by improper hook-up, accidental incorrect control settings, or operator error due to incomplete programming. These problems are usually not caused by circuit failure. Please review this table, and the appropriate section(s) of this instruction manual, before assuming your transceiver is defective.

Note: Placing powered PC peripherals near this transceiver may cause noise in the transceiver.

Problem		Probable Cause		Corrective Action		Ref. Page
Nothing appears on the	1	The battery pack is discharged.	1	Recharge the battery pack or		2
display when the				replace the batteries.
transceiver is switched	2	The protection circuit for the	2	Release the Li-ion battery pack		2
ON, or the display is		Li-ion battery pack is activated.		once, then recharge the battery
blinking ON and OFF.	3	If using the optional DC cable:	3	pack.
		a) Bad power cable or		a) Check the power cable and		2
		connections		connections, then correct/
				replace as necessary.
		b) Open (blown) power supply		b) Investigate the cause for the		2
		fuse		open fuse. Replace the fuse.
Most keys and the	1	Transceiver Lock is ON (the “ ”	1	Press [F] (1 s) to switch OFF		38
Tuning control do not		icon is visible).		Transceiver Lock.
function.	2	The transceiver is in Channel	2	Press [A/B]+[	] (POWER) to exit	21
		Display mode.		Channel Display mode.
	3	Tone Alert is ON (the “ ” icon	3	Press [F], [ENT] to switch OFF		40
		is visible).		Tone Alert.
You cannot select the	1	The current frequency step size	1	Press [F], [FINE] to select an		37
exact desired frequency		does not allow the frequency to		appropriate frequency step size.
using [ ]/ [ ] or the		be selected.
Tuning control.	2	The Fine Tuning function is not	2	Press [FINE] to activate the Fine		35
		activated.		Tuning function.
	3	The Fine Tuning frequency step	3	While the Fine Tuning function is		35
		size is wrong.		ON, press [F], [FINE] to select an
				appropriate Fine Tuning frequency
				steps size.
	4	Programmable VFO frequency	4	Access Menu No. 4 (PROG VFO)		39
		range is programmed.		to expand the frequency range.
You cannot recall any	1	You have stored no data in any	1	Store the desired frequencies in		15
memory channels.		of the memory channels using		memory channels using the current
		the current band.		band.
	2	“CURRENT BAND” is selected	2	Access Menu No. 3 (MR METHOD)		16
		for Menu No. 3 (MR METHOD).		and select “ALL BANDS”.
The receiving sound	1	Attenuator function is ON.	1	Press [F], [MONI] to turn the		36
volume is weak even if	2			Attenuator function OFF.
the signal is strong.		The receiving station may be	2	Access Menu No. 29 (FM		39
		operating in narrow band FM		NARROW) and select “ON”.
		bandwidth.
Turning the VOL control	1	The speaker for the band you	1	Press [BAL], then turn the Tuning		41
does not allow you to		want to monitor is muted.		control to adjust the volume
hear audio.	2		2	balance between A and B-bands.
		The 9600 bps is selected for		Select 1200 bps for Menu No. 28		45
		Menu No. 28 (PACKET)		(PACKET).
You cannot transmit by	1	You selected a frequency	1	Select a frequency within the		7, 53
pressing the PTT		outside the allowable range.		allowable transmit frequency range.
switch.	2	You selected a transmit offset	2	Press [F], [REV] repeatedly so		12
		that places the transmit		neither “+” nor “–” is visible.
		frequency outside the limit.
	3	TX Inhibit is ON.	3	Access Menu No. 8 (TX INHIBIT)		40
				and select “OFF”.
	4	Tone Alert is ON.	4	Press [F], [ENT] to switch OFF		40
				Tone Alert.
	5	The battery pack voltage is too	5	Charge or replace the battery pack.		2, 36
		low to transmit.

48