After an incorrect power supply was connected to the Panasonic RF-D1 DAB radio, the fuse F301 seems to have failed. Does anyone know what the rating of this fuse should be and where I can get a replacement from?
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CODE PO442 - EVAP SMALL LEAKED DETECTED. CODE PO456 - LEAK IN EVAP SYSTEM DETECTED. POSSIBLE CAUSES / VACUUM HOSE CONNECTIONS OR SWITCHES HAVE COME LOOSE OR MALFUNCTION / EVAP EMISSION SYSTEM HAS A LEAK / EVAP PURGE SOLENOID OPERATION HAS MALFUNCTION / NVLD SWITCH OPERATION HAS MALFUNCTION / CODE PO 700 - AUTOMATIC TRANSMISSION FAULT DETECTED .POSSIBLE CAUSE TRANSMISSION CONTROL MODULE RELATED SENSOR HAS SOLENOID IS DAMAGED OR HAS FAILED.TRANSMISSION CONTROL MODULE FAILED OR POWER CONTROL MODULE HAS FAILED.YOU TAKE VECHICLE TO DEALERSHIP THEY WILL TO SCAN TRANSMISSION. CODE PO645 - AC CLUTCH RELAY CIRCUIT MALFUNCTION . POSSIBLE CAUSE.INTERNALLY FUSED IGNITION SWITCH OUTPUT CIRCUIT IS FAULTY. AC RELAY CLUTCH CONTROL CIRCUIT IS OPEN OR IT IS SHORTED TO GROUND. AC RELAY CLUTCH POWER SUPPLY FUSED IGNITION CIRCUIT IS OPEN. AC RELAY IS DAMAGED OR IT HAS FAILED.PCM HAS FAILED. CODE PO481 - HIGH SPEED NUMBER 2 FAN RELAY CONTROL CIRCUIT. POSSIBLE CAUSE HI FAN RELAY POWER CIRCUIT IS OPEN FROM THE RELAY TO FUSED POWER.HI FAN CONTROL CIRCUIT IS OPEN OR SHORTED TO CHASIS GROUND. FAN RELAYS FAILED. PCM HAS FAILED. CODE PO340 - NO CAMSHAFT POSITION SENSOR CIRCUIT FAILURE. POSSIBLE CAUSE CMP SENSOR CONNECTOR IS DAMAGED OPEN OR IT IS SHORTED. CMP SENSOR SIGNAL CIRCUIT IS OPEN OR SHORTED TO GROUND OR TO BATTERY VOLTAGE OR 5 VOLT SUPPLY CIRCUIT. CMP SENSOR 5 VOLT SUPPLY CIRCUIT IS OPEN OR SHORTED TO GROND OR TO BATTERY VOLTAGE. CMP SENSOR GROUND CIRCUIT IS OPEN. CKP SENSOR IS DAMAGED OR HAS FAILED.PCM HAS FAILED. SOUND LIKE PROBLEM IS PCM GROUND WIRE BROKEN OR LOOSE OR PCM HAS FAILED.
Most common failure in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, falied inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what goes wrong: http://s807.photobucket.com/home/budm/allalbums Post back what you see inside so we can guide you further.
First of all you only have the Power wire Red, and the ground wire Black to connect for 12v DC to power the unit. If you memory power it is usually connected to a constant power source such as the cigarette lighter or continuous 12V dc powersupply off of the battery. These are the only connections that should be connected to provide power. Since the unit will not turn on I suspect that the CB's power supply and regulator have been blown. Another possible choice is that the radio was working and someone removed the antenna cable and the the RF power amplifier malfunctioned taking the power supply and regulator with it.
To solve this problem, check the voltages on the wires before connecting them to the radio (these should be the 12 volt power off of the radio circuit, and the 12 volt power off of the continuous 12V connector (or the cigarette lighter). These voltages should read 12V.
Connect the CB with it turned off and measure the voltages (should be 12V)
Turn the radio on and check the voltages (should be a little less than 12V)
If the radio does not come on then the internal power supply of the radio might be defective (In this case I would advise taking the CB to a qualified radio repair shop)
I hope this helps
Just spent the afternoon with an RF4900 with a power problem. The set was intermittent. Found on the back of the set where the ac plugs in, there is a switch that is ingaged when the ac plugs into the set. If the ac cord is old it might not be engaging this switch when the cord is plugged into the set. The switch controls ether battery power or ac power.