Question about Kenwood KAC-X401M Car Audio Amplifier
When i power the amp it plays for about 1 second and then the power indicator starts to flash, and there is no sound. can u tell me what the problem is. it's also missing the power slide door, could this be the problem? it worked when i first hooked it up but now it cuts out immediately. any info would be greatly appreciated
Actually i have the same amp and the power connector was bad and was blowing fuses. It was a bad solder joint. I took it apart and gooped it up with more solder and now it works like a champ. I tested the resistance on the connectors and the power cable had more than the rest. Not sure if this is the same problem you are having but it worked for me.
Posted on Oct 12, 2008
Sounds like an overload, amp switches on, can't get enough juice and switches off. Get a friend with a volt meter to measure the voltage at the amp power terminal as you turn it on, if it drops below 10.5v the amp hasn't got enough juice. Some amps can cut out before the fuse blows, so you never know it's an overload. I'm not sure what you mean by a 'power slide door'
Posted on Apr 24, 2007
Tips for a great answer:
The front panel Status LED provides an indication of
the set's operation and the possible cause of a malfunction.
If an abnormal condition is indicated, perform the
Self Diagnostics procedure.
To activate, press the front panel <ACTIVITY> &<CH
??> buttons at the same time and hold for 5 seconds.
The STATUS LED will then flash denoting a two digit
• The number of flashes indicates the value of the
MSD (tens digit) of the Error Code.
• The flashing then pauses for approximately 1/2
• The LED then flashes indicating the value of the
(ones digit) of the Error Code.
• The Error Code is repeated a total of 5 times.
Example: If the Error Code is "23", the LED
will flash two times, pause, and then flash three
Table 2-2: LED Indications
Error Codes, descriiptions and the most likely cause of
the error are listed in Table 2-3.
Note: The TV must be in "Shut Down." The LED
will probably be indicating an abnormal
condition. If the TV is switched Off, AC is
removed, or a System Reset is performed, the
code automatically resets to "12" No Error.
See the Error Code Log to retrieve a history of
Note: Use the front panel buttons, not the remote
Note: If there is no response, the front panel may be
locked by a V-Chip setting. To unlock, press
and hold <ACTIVITY> on the front panel for
LED Indication Condition
Off Off (standby)
Green Power On
Slow Blink Green Power Off with Timer Set
Fast Blink Green (80 seconds) > Off Power Off (Cooling fan still working, 80 sec)
LED Indication Condition
Red Lamp Failure
Yellow TV Too Hot
Slow Blink Red TV May Require Service
Slow Blink Yellow Lamp Door Open or No Lamp Installed
ABNORMAL INDICATIONS (For details perform Self Diagnostics Procedure.)
Start with the headset powered on. Press and hold down
the call control button while also rotating the multi function dial
upward (away from the light) until the indicator light on the headset
starts flashing red then green. When prompted for passkey, enter
For the Plantronics M1000 (discontinued):
Hit and hold the volume/mute switch in until the indication light starts blinking.
For the Plantronics M1500 & A500 adapter (discontinued): Turn the headset on and the adapter off. On the headset push in and hold the mute/volume dial until the indicator light begins to flash. On the adapter press and hold the blue power button for 10 seconds. The light on the adapter will flash once after 3 seconds- continue to hold the power button for another-7 seconds until the light flashes red. If the pairing is successful, the headset will sound a tone and both the headset and adapter lights will turn off.
For both the Plantronics M1000/M1500 (discontinued): If you remove the battery cover from the headset and then remove the battery itself. On the Green PC board itself there will be a letter followed by 4 numbers. These 4 numbers are your personal PIN code.
You can also use the Plantronics Bluetooth Pairing Guide
Usually answered in minutes!
Step 2: Please assign your manual to a product: