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Icom IC-T7H [31/36] Troubleshooting
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TROUBLESHOOTING
6
27
If your transceiver seems to be malfunctioning, please check
the following points before sending it to a service center.
PROBLEM POSSIBLE CAUSE SOLUTION REF.
No power comes on. • The battery is exhausted.
(A slight current flows in the circuits even when
the power is OFF.)
• Poor plug connection to the external DC power
cable.
• Charge the battery pack or place new dry cell bat-
teries in the battery case.
(Remove the battery pack if you will not be using
the transceiver for a long time.)
• Check the connector or remove and replace the
cable.
pgs. 7,
8
—
Transmitting is impossible. • The battery is exhausted. • Charge the battery pack or place new dry cells in
the battery case.
pgs. 7,
8
Frequency cannot be set. • Memory mode, call channel or channel indication
mode is selected.
• The lock function is activated.
• Push [VFO] to select VFO mode.
• Set [LOCK] down to deactivate the lock function.
p. 10
p. 12
Scan does not function. • The same frequencies are programmed into XA
and XB.
• Program different frequencies. p. 18
[Y] or [Z] keys do not func-
tion when using the optional
HM-75A.
• Memory channels 1 and/or 2 are not programmed
and simple mode is selected.
• Program the memory channels or set to micro-
phone normal.
p. 15
Squelch does not open for
received signals.
• Tone squelch is activated. • Turn OFF the tone squelch. p. 21
No beep sounds even when
a key is pushed.
• Beep tones are turned OFF in initial set mode. • Set beep tones ON in initial set mode. p. 24
Содержание
- Dual band fm transceiver 1
- Instruction manual 1
- Cautions 2
- Explicit definitions 2
- Important 2
- R warning never 2
- Caution 3
- Do not 3
- Unpacking 3
- Table of contents 4
- I switches controls keys and connectors 5
- Panel description 5
- Panel description 6
- Panel description 7
- Caution 8
- Panel description 8
- I function display 9
- Panel description 9
- Battery packs and accessories 10
- D battery pack life 10
- D operating period 10
- I about the battery pack 10
- I battery pack charging 10
- I charging precautions 10
- Recycling information 10
- Attach the supplied or optional battery pack then connect the supplied wall charger via an ac outlet as shown below 11
- Battery packs and accessories 11
- D rapid charging with the bc 119 11
- D regular charging 11
- I charging connections 11
- ➀ insert the ad 56a into the charging slot of the bc 119 ➁ insert the ad 56b into the groove in the ad 56a front fac ing side of the ad 56a ➂ insert the battery pack either by itself or attached to the transceiver into the ad 56b 11
- Battery packs and accessories 12
- Caution 12
- Connect an optional charger or cable to the transceiver as il lustrated below be careful of battery overcharging as the con nected battery is charged simultaneously 12
- D operation with an optional cable 12
- I battery case 12
- Is connected otherwise the battery may leak and damage the transceiver 12
- Remove dry cell batteries when the bp 170 12
- When using a battery case attached to the transceiver install 4 aa r6 size alkaline batteries as illustrated below 12
- Battery packs and accessories 13
- Caution 13
- D antenna 13
- D belt clip 13
- D handstrap 13
- I accessory attachment 13
- Basic operation 14
- I power on 14
- I setting a frequency 14
- Basic operation 15
- Setting tuning steps 15
- Basic operation 16
- I lock function 16
- I selecting a memory channel 16
- Receive and transmit 16
- Basic operation 17
- D general 17
- D tone information 17
- I repeater operation 17
- Auto low power 18
- Basic operation 18
- D setting an offset frequency 18
- D setting subaudible tones for repeater use 18
- Mhz for 1 sec 18
- Push tone or h l several times until rt appears 18
- Selectable steps are the same as the pre set tuning steps mhz step may be helpful for large frequency changes push 18
- Set mode 18
- Advanced functions 19
- Memory call channels 19
- Advanced functions 20
- D memory call call memory 20
- D memory call vfo 20
- D memory clear 20
- D programming after selection 20
- Advanced functions 21
- D dtmf transmit speed 21
- D programming a dtmf code 21
- D transmitting a dtmf code 21
- Dtmf memory operation 21
- Advanced functions 22
- D full programmed scan 22
- I scan operation 22
- Advanced functions 23
- D memory skip scan 23
- Advanced functions 24
- D scan resume condition 24
- D setting a skip channel 24
- Advanced functions 25
- D setting subaudible tones for tone squelch operation ctcss tones 25
- D tone squelch operation 25
- I subaudible tone operation 25
- Advanced functions 26
- D calling a waiting station using pocket beep 26
- D pocket beep operation 26
- D tone scan 26
- D optional hm 75a functions 27
- I initial set mode 27
- Other functions 27
- D auto power off 28
- D auto repeater function u s a only 28
- D beep tones on off 28
- D function display backlighting 28
- Other functions 28
- D battery voltage indication on off 29
- D dtmf speed 29
- D lcd contrast 29
- D power saver duty cycle 29
- Other functions 29
- Caution 30
- I channel indication mode 30
- I cpu resetting 30
- Other functions 30
- Resetting the cpu returns all pro grammed contents to their default settings 30
- If your transceiver seems to be malfunctioning please check the following points before sending it to a service center 31
- Problem possible cause solution ref 31
- Troubleshooting 31
- D battery packs 32
- D chargers and cables 32
- D others 32
- D speaker microphones 32
- Options 32
- All stated specifications are subject to change without notice or obligation 33
- Current drain 33
- Specifications 33
- At power on 34
- Call mode 34
- Channel indication mode 34
- Dtmf memory mode 34
- Memory mode 34
- Mode arrangement 34
- Note displays for set and initial set modes show the de fault settings rotate dial to change the condition 34
- Vfo mode 34
- Initial set mode 35
- Mode arrangement 35
- Set mode 35
- To enter at power on to exit 35
- 9 16 kamihigashi hirano ku osaka 547 0002 japan 36
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