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   CBM      Commodore Computer Conference      4,328 messages   

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   Message 1,421 of 4,328   
   Terry Raymond to Terry Raymond   
   Re: 128DCR Intermittent lockup(with syst   
   04 Jan 16 12:03:16   
   
   On Monday, December 21, 2015 at 12:52:04 PM UTC-7, Terry Raymond wrote:   
   > Hi All,   
   >   
   > One of my 128DCR's has a intermittant related lockup issues.   
   >   
   > I have used the article to install cooling fan into power source.   
   > I added a larger PC cooling fan, mounted to front Bezel but in the middle of   
   the Motherboard (vertically) so the fan can blow air   
   > across the Motherboard.  I tied into the power sources 5VDC to power fan.   
   (on the power source PCB).   
   > according to how the fan hooks up for the power source.   
   >   
   > I checked with Voltage Meter to check power load, that is fine.   
   > I use my V2 SCPU set to about 4.95 for the extra load that load is good.   
   >   
   > The guy in Washington that has repaired Commodores for years reccomended   
   since this is an intermittant lockup   
   > to use a heat gun (on low setting) use piece of cardboard to isolate each MB   
   chip, heat it slightly, if You find the faulty   
   > chip the computer should lockup.   
   >   
   > Ahh Carlsen something gee, he told me that intetmittent problems are hard to   
   isolate because you never know when it will   
   > occur.   
   >   
   > I was hoping for any other feedback from other 128DCR owners that may have   
   had the same problem possibly.   
   >   
   > Im using the Enhanced SID Stereo Player V10.3   
   > Loading Stereo files even including .WDS files plays okay, but after 128DCR   
   is warmed up for more than 2 hours   
   > I try to play the NONE stereo SID songs  .MUS ir .WDS files the player seems   
   to lockup.   
   >   
   > If I try to play the same (none Stereo SID) with computer cold it plays okay   
   and doesnt lockup.   
   >   
   > Using Ray Carlsens suggestion with heat gun, the MMU chip seemed to be   
   faulty, I replaced it and all seemed fine   
   > of course when the computer has been in for many hours.   
   >   
   > Any feedback on this issue?   
   >   
   > Thank you everyone I seem to really like this list you all are so helpful   
   and to me that is what the scene needs,   
   > thank you.   
   >   
   > Terry Raymond   
      
      
      
   On Monday, December 21, 2015 at 12:52:04 PM UTC-7, Terry Raymond wrote:   
   > Hi All,   
   >   
   > One of my 128DCR's has a intermittant related lockup issues.   
   >   
   > I have used the article to install cooling fan into power source.   
   > I added a larger PC cooling fan, mounted to front Bezel but in the middle of   
   the Motherboard (vertically) so the fan can blow air   
   > across the Motherboard.  I tied into the power sources 5VDC to power fan.   
   (on the power source PCB).   
   > according to how the fan hooks up for the power source.   
   >   
   > I checked with Voltage Meter to check power load, that is fine.   
   > I use my V2 SCPU set to about 4.95 for the extra load that load is good.   
   >   
   > The guy in Washington that has repaired Commodores for years reccomended   
   since this is an intermittant lockup   
   > to use a heat gun (on low setting) use piece of cardboard to isolate each MB   
   chip, heat it slightly, if You find the faulty   
   > chip the computer should lockup.   
   >   
   > Ahh Carlsen something gee, he told me that intetmittent problems are hard to   
   isolate because you never know when it will   
   > occur.   
   >   
   > I was hoping for any other feedback from other 128DCR owners that may have   
   had the same problem possibly.   
   >   
   > Im using the Enhanced SID Stereo Player V10.3   
   > Loading Stereo files even including .WDS files plays okay, but after 128DCR   
   is warmed up for more than 2 hours   
   > I try to play the NONE stereo SID songs  .MUS ir .WDS files the player seems   
   to lockup.   
   >   
   > If I try to play the same (none Stereo SID) with computer cold it plays okay   
   and doesnt lockup.   
   >   
   > Using Ray Carlsens suggestion with heat gun, the MMU chip seemed to be   
   faulty, I replaced it and all seemed fine   
   > of course when the computer has been in for many hours.   
   >   
   > Any feedback on this issue?   
   >   
   > Thank you everyone I seem to really like this list you all are so helpful   
   and to me that is what the scene needs,   
   > thank you.   
   >   
   > Terry Raymond   
      
      
      
   On Monday, December 21, 2015 at 12:52:04 PM UTC-7, Terry Raymond wrote:   
   > Hi All,   
   >   
   > One of my 128DCR's has a intermittant related lockup issues.   
   >   
   > I have used the article to install cooling fan into power source.   
   > I added a larger PC cooling fan, mounted to front Bezel but in the middle of   
   the Motherboard (vertically) so the fan can blow air   
   > across the Motherboard.  I tied into the power sources 5VDC to power fan.   
   (on the power source PCB).   
   > according to how the fan hooks up for the power source.   
   >   
   > I checked with Voltage Meter to check power load, that is fine.   
   > I use my V2 SCPU set to about 4.95 for the extra load that load is good.   
   >   
   > The guy in Washington that has repaired Commodores for years reccomended   
   since this is an intermittant lockup   
   > to use a heat gun (on low setting) use piece of cardboard to isolate each MB   
   chip, heat it slightly, if You find the faulty   
   > chip the computer should lockup.   
   >   
   > Ahh Carlsen something gee, he told me that intetmittent problems are hard to   
   isolate because you never know when it will   
   > occur.   
   >   
   > I was hoping for any other feedback from other 128DCR owners that may have   
   had the same problem possibly.   
   >   
   > Im using the Enhanced SID Stereo Player V10.3   
   > Loading Stereo files even including .WDS files plays okay, but after 128DCR   
   is warmed up for more than 2 hours   
   > I try to play the NONE stereo SID songs  .MUS ir .WDS files the player seems   
   to lockup.   
   >   
   > If I try to play the same (none Stereo SID) with computer cold it plays okay   
   and doesnt lockup.   
   >   
   > Using Ray Carlsens suggestion with heat gun, the MMU chip seemed to be   
   faulty, I replaced it and all seemed fine   
   > of course when the computer has been in for many hours.   
   >   
   > Any feedback on this issue?   
   >   
   > Thank you everyone I seem to really like this list you all are so helpful   
   and to me that is what the scene needs,   
   > thank you.   
   >   
   > Terry Raymond   
      
      
      
   On Monday, December 21, 2015 at 12:52:04 PM UTC-7, Terry Raymond wrote:   
   > Hi All,   
   >   
   > One of my 128DCR's has a intermittant related lockup issues.   
   >   
   > I have used the article to install cooling fan into power source.   
   > I added a larger PC cooling fan, mounted to front Bezel but in the middle of   
   the Motherboard (vertically) so the fan can blow air   
   > across the Motherboard.  I tied into the power sources 5VDC to power fan.   
   (on the power source PCB).   
   > according to how the fan hooks up for the power source.   
   >   
   > I checked with Voltage Meter to check power load, that is fine.   
   > I use my V2 SCPU set to about 4.95 for the extra load that load is good.   
   >   
   > The guy in Washington that has repaired Commodores for years reccomended   
   since this is an intermittant lockup   
   > to use a heat gun (on low setting) use piece of cardboard to isolate each MB   
   chip, heat it slightly, if You find the faulty   
   > chip the computer should lockup.   
   >   
   > Ahh Carlsen something gee, he told me that intetmittent problems are hard to   
   isolate because you never know when it will   
   > occur.   
   >   
   > I was hoping for any other feedback from other 128DCR owners that may have   
   had the same problem possibly.   
   >   
   > Im using the Enhanced SID Stereo Player V10.3   
   > Loading Stereo files even including .WDS files plays okay, but after 128DCR   
   is warmed up for more than 2 hours   
   > I try to play the NONE stereo SID songs  .MUS ir .WDS files the player seems   
   to lockup.   
   >   
   > If I try to play the same (none Stereo SID) with computer cold it plays okay   
   and doesnt lockup.   
   >   
   > Using Ray Carlsens suggestion with heat gun, the MMU chip seemed to be   
   faulty, I replaced it and all seemed fine   
   > of course when the computer has been in for many hours.   
   >   
   > Any feedback on this issue?   
   >   
   > Thank you everyone I seem to really like this list you all are so helpful   
   and to me that is what the scene needs,   
   > thank you.   
   >   
   > Terry Raymond   
      
      
      
   On Monday, December 21, 2015 at 12:52:04 PM UTC-7, Terry Raymond wrote:   
   > Hi All,   
   >   
   > One of my 128DCR's has a intermittant related lockup issues.   
   >   
   > I have used the article to install cooling fan into power source.   
   > I added a larger PC cooling fan, mounted to front Bezel but in the middle of   
   the Motherboard (vertically) so the fan can blow air   
   > across the Motherboard.  I tied into the power sources 5VDC to power fan.   
   (on the power source PCB).   
   > according to how the fan hooks up for the power source.   
   >   
   > I checked with Voltage Meter to check power load, that is fine.   
   > I use my V2 SCPU set to about 4.95 for the extra load that load is good.   
   >   
   > The guy in Washington that has repaired Commodores for years reccomended   
   since this is an intermittant lockup   
   > to use a heat gun (on low setting) use piece of cardboard to isolate each MB   
   chip, heat it slightly, if You find the faulty   
   > chip the computer should lockup.   
   >   
   > Ahh Carlsen something gee, he told me that intetmittent problems are hard to   
   isolate because you never know when it will   
   > occur.   
   >   
   > I was hoping for any other feedback from other 128DCR owners that may have   
   had the same problem possibly.   
   >   
   > Im using the Enhanced SID Stereo Player V10.3   
   > Loading Stereo files even including .WDS files plays okay, but after 128DCR   
   is warmed up for more than 2 hours   
   > I try to play the NONE stereo SID songs  .MUS ir .WDS files the player seems   
   to lockup.   
   >   
   > If I try to play the same (none Stereo SID) with computer cold it plays okay   
   and doesnt lockup.   
   >   
   > Using Ray Carlsens suggestion with heat gun, the MMU chip seemed to be   
   faulty, I replaced it and all seemed fine   
   > of course when the computer has been in for many hours.   
   >   
   > Any feedback on this issue?   
   >   
   > Thank you everyone I seem to really like this list you all are so helpful   
   and to me that is what the scene needs,   
   > thank you.   
   >   
   > Terry Raymond   
      
   Hi,   
   I confirmed that this is a problem with my 128DCR   
   I tried running the Enhanced Sid Stereo Player with my   
   C64C-E  just playing mono or stereo files with the Stereo settings   
   works fine, no lockups.   
   So I will have to just trace down what chip is faulty.   
      
   I have seen there is a new type of Thermal thermometer that you point at any   
   IC's etc it reports what the temp is.  I have seen on utube that this can be   
   used with IC chips to see what temperature they are running at, mainly to see   
   if the chip is running hotter so as to trace whether this chip may be faulty   
   and this is what is happening on my 128D, so maybe I could try this device.   
   BTW this Thermal Thermometer is wireless, apparently battery operated etc.   
      
   I wanted to share this tech information if anybody else could use this   
   troubleshooting their Commodore's.   
      
   Bye all.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: Agency HUB, Dunedin - New Zealand | Fido<>Usenet Gateway (3:770/3)   

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