Results 1 to 3 of 3

Thread: PC Engine Duo-R CD BGM playback stops arbitrarily

  1. #1
    Strawberry (Level 2) Custom rank graphic
    FoxNtd's Avatar
    Join Date
    Mar 2010
    Location
    USA/米国
    Posts
    566
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    4
    Thanked in
    4 Posts

    Question PC Engine Duo-R CD BGM playback stops arbitrarily

    For some time my PCE Duo-R has a problem where BGM/music playback just stops during gameplay. This is exclusive to CD games; all audio works perfectly with HuCard games. There are no apparent problems playing CD games though. I haven't put a lot of time into a CD game lately but I've never experienced a failure to actually play. If the game needs to load and play a new track for BGM it will kick in but eventually it will suddenly stop. It is somewhat random/unpredictable when the BGM suddenly disappears.

    Where should I begin to determine what needs repair? Should I just replace the capacitors? I've noticed some others talking about adjusting potentiometers as well? Where can I find documentation on these things based on what I should do next?

    I've also seen someone speak of an eBay seller, turbografxfan who sells repair services. While I have done some initial practice work with a soldering iron and wick assembling a digital LCD clock (DIY kit, about 12cm long) I will need to review what work is in store for recapping a Duo-R before deciding to install caps myself or purchase professional-grade repair labour.

    Lastly any tips on identifying cold solder joints? I used to think there was an issue with the A/V cable connector but last play, the console did great so I'm not sure. Probably just multimeter-based testing. I need a new multimeter that can actually identify continuity. Thanks for any tips/docs!

  2. #2
    Pac-Man (Level 10)
    Join Date
    Jan 2014
    Location
    Minnesota
    Posts
    2,792
    Thanks Thanks Given 
    104
    Thanks Thanks Received 
    95
    Thanked in
    91 Posts

    Default

    if youre willing to wait, Analogue is releasing the Duo supposedly this year (but honestly I think itll be more likely the first half of 2022). I cant give any advice on soldering or repair because im not the best at it myself.
    Skeleton Warrior Lives Matter.

  3. #3
    Great Puma (Level 12) Bratwurst's Avatar
    Join Date
    Jan 2003
    Posts
    4,461
    Thanks Thanks Given 
    4
    Thanks Thanks Received 
    13
    Thanked in
    10 Posts

    Default

    The 4558 opamps are failing, these are responsible for redbook audio from the CD drive and cause the symptoms you describe. Look at IC203 in particular on the board and see if the text on the chip surface looks faded compared to the others, or if any other instance of this chip elsewhere looks 'cooked.' There's one around/under the power supply/voltage conditioning circuit that gets overheated sooner than the rest. You're probably better off replacing all of them, they're 8-pin surface mount chips. If a capacitor replacement hasn't been performed at this point you should expect corrosion from leaked electrolytic as well.

Similar Threads

  1. Ultraverse Prime Stops Loading
    By 2Dskillz in forum Technical and Restoration Society
    Replies: 2
    Last Post: 01-08-2011, 01:03 PM
  2. Gaming shops and stops in Budapest
    By bones11 in forum Classic Gaming
    Replies: 1
    Last Post: 09-02-2010, 11:09 AM
  3. Video game stops a robbery
    By Richter in forum Classic Gaming
    Replies: 12
    Last Post: 12-16-2004, 08:59 AM
  4. The DP Prize Patrol Van: Now Making Stops
    By digitalpress in forum Classic Gaming
    Replies: 18
    Last Post: 03-13-2004, 06:41 AM

Posting Permissions

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