Marantz CD-63 KI Signature dead - UK Vintage Radio Repair and Restoration Discussion Forum

John M1JWR · 19th Jan 2020, 6:34 pm

Hi all
i think this player may qualify for vintage as its around 25 years old
i stored it away about 7 years ago in a warmish place, it was working at that point, not that it matters it was in its original box.
i have recently got it out of storage and found that is is dead, no switch on.
its mint inside, there is no sign of any damaged caps and from what i have
learned, rather posh ones were used in this model.
the 2 fuses are undamaged.
i did notice that when power is applied a little movement comes from a disc above the laser it also moves a little when unit is switched off.
i do have copy of maintenance manual but mostly covers plain 63 model.
i have replaced plug and lead to no difference, i have made some checks with meter, info will be given in next post if needed.
quite strange as i also brought a pioneer av amp which has been stored for about 10 years, its of 1993 vintage and it works no problem.
any pointers in the right direction would be much appreciated

PJL · 19th Jan 2020, 8:18 pm

Sounds like a PSU fault. I have a Ki and non-Ki for spares and in one of these (can't remember which) one of the regulators failed (and I think it was 5V).

John M1JWR · 20th Jan 2020, 2:12 am

HI, yes thats a good point, ive had a little experience with those in a radio before, actually there was only one in that case.
looks like there could be two in this machine, not sure, will test it or them in the coming days and report back
regards

John M1JWR · 26th Jan 2020, 1:39 am

Thanks friend, you were on the money
5v regulator had 0.3v output, jrc 7805a,
installed a new one and she's working folks !
not very good heat dissapation prospects for it by the looks of things.
thinking about putting a little thermal compound on it,
there was none as factory spec, as all original.

PJL · 26th Jan 2020, 1:53 pm

Despite the age and complexity, it is fascinating that most failures still seem to be 'stock faults'. Good to hear it's fixed.

19th Jan 2020, 6:34 pm	#1
John M1JWR Pentode Join Date: Nov 2018 Location: Carlisle, Cumbria, UK. Posts: 244	Marantz CD-63 KI Signature dead Hi all i think this player may qualify for vintage as its around 25 years old i stored it away about 7 years ago in a warmish place, it was working at that point, not that it matters it was in its original box. i have recently got it out of storage and found that is is dead, no switch on. its mint inside, there is no sign of any damaged caps and from what i have learned, rather posh ones were used in this model. the 2 fuses are undamaged. i did notice that when power is applied a little movement comes from a disc above the laser it also moves a little when unit is switched off. i do have copy of maintenance manual but mostly covers plain 63 model. i have replaced plug and lead to no difference, i have made some checks with meter, info will be given in next post if needed. quite strange as i also brought a pioneer av amp which has been stored for about 10 years, its of 1993 vintage and it works no problem. any pointers in the right direction would be much appreciated

19th Jan 2020, 8:18 pm	#2
PJL Dekatron Join Date: Sep 2005 Location: Seaford, East Sussex, UK. Posts: 5,997	Re: Marantz CD-63 KI Signature dead Sounds like a PSU fault. I have a Ki and non-Ki for spares and in one of these (can't remember which) one of the regulators failed (and I think it was 5V).

20th Jan 2020, 2:12 am	#3
John M1JWR Pentode Join Date: Nov 2018 Location: Carlisle, Cumbria, UK. Posts: 244	Re: Marantz CD-63 KI Signature dead HI, yes thats a good point, ive had a little experience with those in a radio before, actually there was only one in that case. looks like there could be two in this machine, not sure, will test it or them in the coming days and report back regards

26th Jan 2020, 1:39 am	#4
John M1JWR Pentode Join Date: Nov 2018 Location: Carlisle, Cumbria, UK. Posts: 244	Re: Marantz CD-63 KI Signature dead Thanks friend, you were on the money 5v regulator had 0.3v output, jrc 7805a, installed a new one and she's working folks ! not very good heat dissapation prospects for it by the looks of things. thinking about putting a little thermal compound on it, there was none as factory spec, as all original.

26th Jan 2020, 1:53 pm	#5
PJL Dekatron Join Date: Sep 2005 Location: Seaford, East Sussex, UK. Posts: 5,997	Re: Marantz CD-63 KI Signature dead Despite the age and complexity, it is fascinating that most failures still seem to be 'stock faults'. Good to hear it's fixed.