DR-M10 Guide to problems
Posted: Wed Nov 14, 2007 1:21 pm
Below is a list of known problems for these machines.
The faults listed will require someone with good soldering skills etc to perform a satisfactory repair, so we advise against 'having a go' yourself if you have no knowledge.
The answers should hopefully cover all possibilities, so please don't just email me asking the same things that are covered here.only email me after you have tried the remedies suggested- and if you still have a problem please.
If however you have a different problem to report, or some knowledge to impart then please do let us know.
DR-M10 problems:
The main fault in common with a lot of other models is the power supply. Nearly every machine by now will have failed like this at least once. This will usually give the flashing 'LOADING' on the display.
There are numerous possibilities for causing the onboard micro computer to 'crash' and give this flashing.
Normally it will be one of the cylindrical capacitors on the power board
C5202 C5207 C5208 that may be bulging or leaking and need replacing.
Most now may also need the smaller 100u capacitors changing - C5307 5308 etc. and the smaller C5304/5305. Ideally use an oscilloscope to check for 'ripple' on the positive pins to prove which.
Originally the 'loading' symptom was cured by modifying the micro pcb by the addition of some resistors. A stop gap measure as it turned out.. Early machines may still benefit from this doing, but most will have been either modded by a JVC workshop by now or 'in production' Check/repair the main power supply FIRST.
As with the DRM1 you may also get the 'Dead' symptom. It will nearly always fail when in standby as the fan doesn't run then and the power Ic on the small aluminium block near the fan will fail- sometimes exploding, other times just tripping when hot.
If by unplugging and plugging back in , you can restart the supply this will prove which of the above has occurred.
If it is just tripping, replacing the STRG6653, making sure it seats fully onto its aluminium block, and replacing any of the tall cylindrical capacitors that look distressed (bulging tops or leaking around base) will normally cure it.
*BEWARE* the big capacitor near the heatsink can hold near 400volts on it even when its been unplugged for some time!!! Likes to shake hands if you touch it
If the STRG6653 has cracked then you will need to replace the following parts which will have been damaged when it blew.
1- IC5101 STRG6653
2- PC5101 opto coupler
3- C5103
4- R5107 microscopic surface mounted under the board
5- R5108
6- R5109 microscopic surface mounted under the board
7- F5001 fuse
Other than the above these have been generally reliable, but odd disc reading problems being caused by a duff DVD-r drive can occur.
The faults listed will require someone with good soldering skills etc to perform a satisfactory repair, so we advise against 'having a go' yourself if you have no knowledge.
The answers should hopefully cover all possibilities, so please don't just email me asking the same things that are covered here.only email me after you have tried the remedies suggested- and if you still have a problem please.
If however you have a different problem to report, or some knowledge to impart then please do let us know.
DR-M10 problems:
The main fault in common with a lot of other models is the power supply. Nearly every machine by now will have failed like this at least once. This will usually give the flashing 'LOADING' on the display.
There are numerous possibilities for causing the onboard micro computer to 'crash' and give this flashing.
Normally it will be one of the cylindrical capacitors on the power board
C5202 C5207 C5208 that may be bulging or leaking and need replacing.
Most now may also need the smaller 100u capacitors changing - C5307 5308 etc. and the smaller C5304/5305. Ideally use an oscilloscope to check for 'ripple' on the positive pins to prove which.
Originally the 'loading' symptom was cured by modifying the micro pcb by the addition of some resistors. A stop gap measure as it turned out.. Early machines may still benefit from this doing, but most will have been either modded by a JVC workshop by now or 'in production' Check/repair the main power supply FIRST.
As with the DRM1 you may also get the 'Dead' symptom. It will nearly always fail when in standby as the fan doesn't run then and the power Ic on the small aluminium block near the fan will fail- sometimes exploding, other times just tripping when hot.
If by unplugging and plugging back in , you can restart the supply this will prove which of the above has occurred.
If it is just tripping, replacing the STRG6653, making sure it seats fully onto its aluminium block, and replacing any of the tall cylindrical capacitors that look distressed (bulging tops or leaking around base) will normally cure it.
*BEWARE* the big capacitor near the heatsink can hold near 400volts on it even when its been unplugged for some time!!! Likes to shake hands if you touch it
If the STRG6653 has cracked then you will need to replace the following parts which will have been damaged when it blew.
1- IC5101 STRG6653
2- PC5101 opto coupler
3- C5103
4- R5107 microscopic surface mounted under the board
5- R5108
6- R5109 microscopic surface mounted under the board
7- F5001 fuse
Other than the above these have been generally reliable, but odd disc reading problems being caused by a duff DVD-r drive can occur.