KENWOOD TH-78A 144/440 MHz Dual Bander - The Repeater ...

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TROUBLESHOOTINGHe following problems are generally caused by improper transceiver operation or connection, not by defectivecomponents. If you experience any of these problem, check the causes and corrective actions before requestingservice.Symptom Probably Cause Corrective ActionIndicators do not light and no 1. Low voltage. 1. Recharge/replace the battery.receiver noise is heard when the 2. With optional DC cable 2.POWER switch is turned no. 1) Bad power cable or 1) Check cables and connections.Connections2) Blown power supply fuse. 2) Check for the cause of the blownfuse and replace the fuse.No sound from the speaker. 1. Squelch is closed. 1. Turn the SQL control counterclockwise.No signal can be received. 2. With the TSU-7: CTCSS 2. Press the F key, then press the 3 key tois operatingturn off the CTCSS.3. DTSS is operating 3. Press the F key, then press the 2 key toturn off the DTSS.4. Paging is operating 4. Press the F key, then press the 1 key toturn off the Paging.No control works 1. LOCK is ON 1. Press the F key, then press the M key.2. T.ALT is ON. 2. Press the F key, then press the 5 key.Memory channel cannot be Nothing is stored in the See Using the Memory (page 15).recalled.memory channel.Memory cannot be backed up. 1. Battery voltage is low. 1. Recharge the battery.2. Battery case removed. 2. Install the Battery case.Page 48
1. Installing the CTCSS Unit (TSU-7)1 Slide the battery release button to unlock, then pull out the battery case.2 Unscrew the four screws on the rear (Fig. 1). <strong>The</strong> screw nearest the antenna is a short one.3 Put your finger into the battery holder, and release the claw of the rear case. (Fig. 2)4 Position the set with its front facing forward.5 Open the front panel from the PTT switch side, being careful of the internal wiring and water resistant rubberattachedLEDs. (Fig. 3)6 Remove the jumper wire (J301) using a pair of nippers.7 Attach the TSU-7 to the transceiver, as shown in Fig. 4.8. Replace the case in its original position, taking care not to pinch any wires or cables under the case.9. Install the four screws. Remember that the short screw goes nearest the antenna.Page 49
Page 1 and 2: KENWOODTH-78A144/440MHz FM Handheld
Page 3 and 4: 9 CALL/VFO Scan ...................
Page 5 and 6: CONTROLS OVERVIEWPage 5
Page 7 and 8: Manganese or Alkaline batteriesFull
Page 9 and 10: Separate VOLUME control functionPre
Page 11 and 12: 5) The transceiver actually changes
Page 13 and 14: 3) Select the desired upper tuning
Page 15 and 16: The time-out-timer function cannot
Page 17 and 18: 3) Use the keypad to select any des
Page 19 and 20: 3) Press the M key, then press the
Page 21 and 22: 4 Scanning Memory ChannelsNoteThe t
Page 23 and 24: 8 VFO / Memory ScanThis function le
Page 25 and 26: For example, repeater A uses 146.00
Page 27 and 28: 3) Release the 2 key.You are now ab
Page 29 and 30: The desired band will now operate i
Page 31 and 32: Unlike DTSS, the calling station co
Page 33 and 34: 4 Sending Pages (Calling)1) Turn to
Page 35 and 36: 3) Press the PTT switch to respond
Page 37 and 38: Relationship between input characte
Page 39 and 40: Press and hold the M key for longer
Page 41 and 42: 3) Connect your earphone to the Ext
Page 43 and 44: 1) Turn the POWER switch off2) Pres
Page 45 and 46: 2 With the Tuning control, set the
Page 47: DTMF2SEARMSG M1MSG MXMSGCLROPG OFFO
Page 51 and 52: To reset the function of the transc

KENWOOD TH-78A 144/440 MHz Dual Bander - The Repeater ...

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