Kenwood TS-480SAT Operation Manual - Page 95

Kenwood TS-480SAT Manual

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16 TROUBLESHOOTING Problem Probable Cause Corrective Action Page Ref. "TEMP-HI" appears A sensor in the transceiver detected Stop transmitting and let the transceiver - and "CHECK" in high temperature. cool down for a while. Contact a Morse code sounds. KENWOOD authorized service center to clean the internal air filters. "PA ERROR" and A sensor in the transceiver detected Let the transceiver cool down for a while, 88 "CHECK" in Morse malfunctions in the TX power amplifier then perform the Full reset. If the problem code sounds, then circuit. persists, contact a KENWOOD authorized the transmission service center for repairs. stops (TS-480HX only). "RX ONLY" appears 1 The DC cable is not connected to 1 Apply (or connect) the DC power 2, 3 and "CHECK" in the DC-2 connector. source to the DC-2 connector. Morse code sounds 2 The voltage difference between the 2 Confirm that the output DC voltage of 2, 3 (TS-480HX only). DC-1 and DC-2 connectors on the both DC power supplies is 13.8 V DC. transceiver is greater than 1.0 V DC. The difference must be within 1.0 V DC. "DC ERROR" The voltage of the DC power supply(s) Adjust the DC power supply voltage to 3 appears and is too high. 13.8 V DC. "CHECK" in Morse code sounds. Transmission suddenly stops. 1 The voltage difference between 1 Confirm that the output DC voltage of 2, 3 DC-1 and DC-2 connectors on the both DC power supplies is 13.8 V DC. transceiver becomes greater than The difference must be within 1.0 V 1.0 V DC. DC. 2 The voltage of the DC power 2 Adjust the DC power supply voltage to 3 supply(s) is too high. 13.8 V DC. 3 Two different type of DC cables are 3 Use same type of DC cables. 2, 3 used. "VGS ERR" appears. An internal error occurred in the VGS-1. Confirm the connector of VGS-1 is 83, securely connected to the transceiver. 88 Perform the Full reset. If the problem persists, contact a KENWOOD authorized service center for repairs. A message cannot be recorded/ played back or no announcement can be heard. There is a communication error between the transceiver and VGS-1. Confirm the connector of VGS-1 is 83, securely connected to the transceiver. 88 Perform the Full reset. If the problem persists, contact a KENWOOD authorized service center for repairs. The transceiver Most of the external RF power meters Apply a continuous single tone (1 kHz) to - output power seems measure the average RF power. So, the microphone audio input to measure to be low in SSB the meter reading is low when you the RF output power. The PEP will be the mode. operate and talk in SSB mode. same as this RF output level. The LCD meter used in the TS-480 has relatively fast response time but it is not fast enough to measure the accurate PEP (peak envelope power). 87

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