Pioneer SX 990 lights/bulbs replacement help.

Discussion in 'Pioneer Audio' started by danconway327, Mar 6, 2017.

  1. john stumpf

    john stumpf AK Subscriber Subscriber

    Messages:
    243
    Location:
    philippines
    with the master switch on,setting your meter to the ac volts position,do you have power to the fuse for the lights? it should read about 7.5vac to chassis ground. look on the back panel near the serial number and tell me the model code you have it will be a letter code fsaw,fvw,fvzw,,kcu.kuw,or,nbw
     
    Last edited: Mar 21, 2017 at 12:38 AM
  2. danconway327

    danconway327 Active Member

    Messages:
    108
    Location:
    Florida USofA
    Thanks John. It is a KUW. I'VE packed up for the night. I will try that tomorrow and report back
    .
     
  3. john stumpf

    john stumpf AK Subscriber Subscriber

    Messages:
    243
    Location:
    philippines
    we need to be on the same page.print a copy of the schematic and make sure its for a kuw.
     
  4. loudnoises

    loudnoises Escalates Quickly Subscriber

    Messages:
    263
    Location:
    Pondside, NH
    Looking inside mine (which happens to be on the bench) all the grounds for the selector switch gang together in a huge nasty un-pioneer mess of solder and wires right behind it. Pretty sure this was not a repair..

    I'd check there for a loose wire. are you getting continuity to ground at the lamps?
    come to think of it i haven't read the schematic recently, that might not be ground, but power.
     

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