Results 1 to 10 of 10

Thread: Opus power supply woes. help

  1. #1
    Variable Bitrate
    Join Date
    Apr 2005
    Posts
    267

    Opus power supply woes. help

    Got everything hooked up. Put in the power supply today. I took the ground and ran it to the ground on my amp. Then the ignition I put on the remote wire of my amp. And the battery I put to my circuit breaker because I relocated my battery. I have connunitunty on my ground, I have 13v on both ends and it still won't turn on.
    I tried putting the ignition and battery to the circuit breaker no luck. I plugged in an external power supply to make sure the mb was working and it does.
    The green light was flashing on the power supply (opus) then stopped all of a sudden.
    So I got out my battery charger put the ground to ground and both positives on the + of the battery charger and it turns on. Then after a few min I couldn't get it to go back on. I know everything is working properly and I have good voltage and ground.
    How should I go about troubleshooting from here on?

  2. #2
    Variable Bitrate
    Join Date
    Apr 2005
    Posts
    267
    Nobody?

  3. #3
    Variable Bitrate
    Join Date
    Apr 2005
    Posts
    267
    ????

  4. #4
    Variable Bitrate
    Join Date
    Jul 2006
    Location
    seattle
    Posts
    421
    take it out of the car.
    user your desktop atx power supply to test it. (follow this link: http://www.techpowerup.com/articles/other/22)

    yellow wire to opus positive input
    black wire to opus negative input
    yellow wire to opus ignition input

    if it doesn't work, you have a busted opus.
    dsatx in voompc 2 case <HERE>

  5. #5
    Variable Bitrate
    Join Date
    Apr 2005
    Posts
    267
    It does work with external power, just not with power in the car.

  6. #6
    Variable Bitrate
    Join Date
    Jul 2006
    Location
    seattle
    Posts
    421
    Quote Originally Posted by MAZDABOY View Post
    It does work with external power, just not with power in the car.
    the opus or the motherboard?
    I am talking about the opus.
    dsatx in voompc 2 case <HERE>

  7. #7
    Variable Bitrate
    Join Date
    Jul 2006
    Location
    Brisbane, Australia
    Posts
    346
    I'd be very surprised if you could blow up an Opus. So lets start at the beginning.

    I am familiar with the Opus DCA7-150. Start with ignition off and with a multimeter confirm:
    1. Disconnect all leads from the PS
    2. Check the yellow fuse has not blown (remove it & check)
    3. Is there power to the yellow wires (pin 4 & 5 of J1) all of the time? (to battery)
    4. Check no power to the red Accessory wire (pin 3)
    5. Turn Ign on. Is there power on the red wire (pin 3)? There should be.

    If all is good at this point, turn off the ignition and check the output side (J5) with a multimeter. First without J5 connected, check you have a good earth to pins 2, 3, 6 & 7 (black wires) using continiuity with bare metal on the chassis.

    OK if all is good we need to ocnfirm the PS is outputing power. This will be easiest if you set the PS to be in AT mode by shorting pins 2 & 3 on J6 with the supplied jumpers. Tis will disable all of the ATX handshaking.

    connect J1 and turn the ignition on. What does the light do. It should glow solid. If not check the blinks against the documentation to diagnose the fault.

    Check you have 12 volts (or whatever you have set the PS to output) on Pins 1 & 5 Back to the earth (pins 2,3,6,7). You should also measure the output on pins 4 & 8 against earth. You should have 5 volts.

    Ok, you if you got this far, you know that you have got a PS working properly. You just need to figure out what power mode you need. I have got a laptop, so this is where we part company becasue Opus are working with me to upgrade the bios to support my laptop mode.

    Note that you may need to configure setings in the BIOS so that the Opus starts your laptop.

    Here is some info from Opus Tech support verbatum I received:

    When a jumper is loaded on pin 9 of JU2, the power supply is configured to turned on / off the computer by the user ‘s action (pushing the power-switch button from the front pannel).

    Since you have FW:20, the power-switch cable and the ignition wire are not used. Just the PS-ON cable connector and power output connector are connected to single board computer.

    When a jumper is not loaded on pin 9 of JU2, the power supply is configured to turn on / off by the ignition switch. Your single board computer may need PS-ON signal connector (check your SBC specs for proper configuration) along with power-switch cable connector and power output cable connector.

    Besides using sub-ATX mode (01), you also need to set AC Loss Power Restore ( in BIOS) ON so that when you power up the power supply, the laptop will be turned on.

    Explanation of pin 7 and 8 of JU2:

    Pin 7 of JU2 is used to set remote output delay turn-off. Operation is as follows:

    If pin 7 is not loaded with jumper, remote output will turn off right before shutdown delay (set by jumpers on pin 1, 2, and 3 of JU1).

    If pin 7 is loaded with jumper, remote output will turn off after ignition switch is turned off.

    Pin 8 of JU2 is used to set startup and shutdown voltages for 12V / 24V input. Operation is as follows:

    If no jumper is loaded on pin 8, startup and shutdown voltages will follow 12V input’s startup and shutdown voltage configurations

    If a jumper is loaded on pin 8, startup and shutdown voltages will follow 24V input’s startup and shutdown voltage configurations

    SO take your time and check each item one by one above.
    RodW
    2007 Toyota Hilux with a CarPC..

    Worklog: http://www.mp3car.com/vbulletin/work...ota-hilux.html
    OziExplorer GPS Embedded in RR: http://www.mp3car.com/vbulletin/sb-s...iexplorer.html

  8. #8
    Variable Bitrate
    Join Date
    Jul 2006
    Location
    Brisbane, Australia
    Posts
    346
    Oh and I forgot to mention that there are some time delays on the Opus I think, so sometimes you need to leave it alone for a while before playiing again.
    RodW
    2007 Toyota Hilux with a CarPC..

    Worklog: http://www.mp3car.com/vbulletin/work...ota-hilux.html
    OziExplorer GPS Embedded in RR: http://www.mp3car.com/vbulletin/sb-s...iexplorer.html

  9. #9
    Variable Bitrate
    Join Date
    Apr 2005
    Posts
    267
    I'll have to look at that big post again.
    So I don't need the ignition wire at all?
    I have this all hooked up, ground to ground, ign to remote on my amp and power to the power on my amp. At first when I turned the headunit off the pc started to boot up. Now it's got a mind of it's own. Seems like sometimes it boots up when it wants and sometimes it doesn't. I have to keep turning the radio on/off.

  10. #10
    Variable Bitrate
    Join Date
    Jul 2006
    Location
    Brisbane, Australia
    Posts
    346
    Sorry If I have confused you.

    Yes you do need to connect the IGN to the Opus (red wire pin 3) and then connect the Opus remote wire (pin 6 of J1 - blue wire) to the Amp remote. That way, the Opus will tell your Amp when to turn on after you apply power.

    Have a look in the Opus user guide and follow the diagram on page 3 for a basic setup. Download it from Opus here:
    http://www.opussolutions.com/pdfs/DC...ck%20Guide.pdf


    What I was trying to get at is that you need to trouble shoot this in a logical fashion step by step starting at the caer end and working through each element one by one.

    1. Check all of the power coming into the Opus (J1) is correct, confirm voltages with multimeter does IGN give you 12 volts? Does BAT give you 12 volts? Is there continuity to earth?

    2. Connect the Opus and check output voltages with nothing installed and IGN turned on. It is best to do this in AT mode so the startup/shutdown handshaking is disabled by changing the links on the board. Do you get 12 volts on the yellow wires and 5 volts on the red wires?

    3. Is there 5 volts all the time on the standby power connector with IGN on and off?

    4. What does the Opus LED tell you? It should be solid on when powered up and flashing slowly when IGN is off (and power off delay times have passed) Check any flashing patterns against the document in the link above.

    5. Does the AMP turn on? (Mine has an LED to tell me)

    So if you have all of that sorted, then you will know the Opus is working fine & then you need to enable the appropriate links on the board to configure the startup and shut down as per the documentation in the link above.
    RodW
    2007 Toyota Hilux with a CarPC..

    Worklog: http://www.mp3car.com/vbulletin/work...ota-hilux.html
    OziExplorer GPS Embedded in RR: http://www.mp3car.com/vbulletin/sb-s...iexplorer.html

Similar Threads

  1. Review: M4-ATX 250 Watt Intelligent Power Supply
    By Bugbyte in forum The Review Palace
    Replies: 11
    Last Post: 12-21-2009, 08:52 AM
  2. FAQ: Will <insert PSU model> Power Supply work with my system?
    By DarquePervert in forum The FAQ Emporium
    Replies: 9
    Last Post: 10-10-2006, 12:38 PM
  3. OPUS Power Supply & 18 Volts
    By 2k5f150 in forum Newbie
    Replies: 15
    Last Post: 06-06-2005, 06:50 AM
  4. DC-DC Car Power for Mac Mini
    By MikeH in forum MacCar
    Replies: 53
    Last Post: 02-19-2005, 12:13 PM
  5. OPUS power supply
    By xenonflx in forum Newbie
    Replies: 1
    Last Post: 11-30-2003, 05:06 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •