tag:blogger.com,1999:blog-7361237673474611033.post8072230228960543775..comments2024-03-25T09:10:23.746+00:00Comments on Doz' Blog: Mitsubish MC8000 audio system repairs.Dozhttp://www.blogger.com/profile/01517789746939070858noreply@blogger.comBlogger57125tag:blogger.com,1999:blog-7361237673474611033.post-5330367379054429762023-11-07T12:51:59.926+00:002023-11-07T12:51:59.926+00:00Hi, I have one of these to fix. Capstan belt has c...Hi, I have one of these to fix. Capstan belt has completely deteriorated so I want to replace the lot. I fixed these back in the day but not touched one in many years (cough), so great to see this teardown. I do not have a workshop so it will be a kitchen table repair so would like to have all the belts to hand. I definitely dot want to leave it ' on the bench' for too long as it looks complex with plenty of parts to remove. so, any idea what the belt sizes are so I can pre order? Thanks, great work.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-7361237673474611033.post-68917934755301890572023-06-20T08:13:58.961+01:002023-06-20T08:13:58.961+01:00I would think a scrap unit for parts is your only ...I would think a scrap unit for parts is your only hope there.Dozhttps://www.blogger.com/profile/01517789746939070858noreply@blogger.comtag:blogger.com,1999:blog-7361237673474611033.post-27619390151608039712023-06-12T21:44:08.630+01:002023-06-12T21:44:08.630+01:00hi, i have got a mc800-, but it is missing the mot...hi, i have got a mc800-, but it is missing the motor for the arm, i think in your pictures it is no 2 and number 3 it is black by going by your photos any ideas where i could get one or a modern eqivilant of it, i have looked on ebay and facebook, thanksAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-7361237673474611033.post-4288607543042438212021-09-28T10:43:57.153+01:002021-09-28T10:43:57.153+01:00Hello Theo. Download the schematic, and start chec...Hello Theo. Download the schematic, and start checking supply rails to that bit of the circuit. Electrolytic caps in their later years often give this kind of symptom! That's where I'd start. You may find some freezer spray on the electrolytic will cause the fault to occur once the displays are working. Use the search button above for "Freezer spray on the cheap"Dozhttps://www.blogger.com/profile/01517789746939070858noreply@blogger.comtag:blogger.com,1999:blog-7361237673474611033.post-7444704240482301962021-09-28T10:06:57.927+01:002021-09-28T10:06:57.927+01:00Hi There - Theo here from Wembley, I have an MC-80...Hi There - Theo here from Wembley, I have an MC-8000 - wow what a great bit of Hi-Fi. I've done the lamp to LED swaps for the turntable - all working really well. The lights on the selector (Tape / Phono / Radio) and the digital read-out do not normally come on on power-up but eventually do come on. Any ideas what causes this - it is sort of intermittent, but the selector switch is working at all times for operation. Many thanks, Retro - Theo - theoparadise@msn.comAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-7361237673474611033.post-26857911412362852252021-08-31T12:10:55.507+01:002021-08-31T12:10:55.507+01:00Will do, Thanks from Germany, I have the service m...Will do, Thanks from Germany, I have the service manual and test it next weekendAnonymoushttps://www.blogger.com/profile/11435029197402658403noreply@blogger.comtag:blogger.com,1999:blog-7361237673474611033.post-42513827056555071372021-08-30T17:37:21.341+01:002021-08-30T17:37:21.341+01:00Check LA103 (download a copy of the service manual...Check LA103 (download a copy of the service manual fro somewhere.. or drop your email here and I'll send you a copy). LA103 is the end sensor lamp.Dozhttps://www.blogger.com/profile/01517789746939070858noreply@blogger.comtag:blogger.com,1999:blog-7361237673474611033.post-33584089376234737792021-08-30T09:06:37.164+01:002021-08-30T09:06:37.164+01:00Hi Andy, I know the blog is old and you repaired a...Hi Andy, I know the blog is old and you repaired a MC 8000 some year before. I also own such a device now. Do you know what I have to do that the tonearm is running back and stop the motor when the vinyl ends ? My device is not switching of after end of record :-(Anonymoushttps://www.blogger.com/profile/11435029197402658403noreply@blogger.comtag:blogger.com,1999:blog-7361237673474611033.post-10261464692790561032021-08-27T08:08:31.416+01:002021-08-27T08:08:31.416+01:00Keep up the good work guys!!! You just gave me the...Keep up the good work guys!!! You just gave me the courage to start on mine. Anonymoushttps://www.blogger.com/profile/00820253918100440352noreply@blogger.comtag:blogger.com,1999:blog-7361237673474611033.post-901741193565530742021-07-12T10:24:18.447+01:002021-07-12T10:24:18.447+01:00Check white wire from antenna/connector-panel is s...Check white wire from antenna/connector-panel is soldered into receiver module. Mine was loose because of bad soldering.<br />You can see it when you remove back plate.Anonymoushttps://www.blogger.com/profile/02858662471981528648noreply@blogger.comtag:blogger.com,1999:blog-7361237673474611033.post-51241996278479374492021-07-12T10:08:31.501+01:002021-07-12T10:08:31.501+01:00Motor control unit inside the motor is faulty. Rem...Motor control unit inside the motor is faulty. Remove end cap of the motor, replace electrolytic capacitors and AN6610, or use external motor control.Anonymoushttps://www.blogger.com/profile/02858662471981528648noreply@blogger.comtag:blogger.com,1999:blog-7361237673474611033.post-12143997630208023902021-02-18T08:13:52.974+00:002021-02-18T08:13:52.974+00:00That's why it's faint. You'll need bot...That's why it's faint. You'll need both! It would have originally had an am loop antenna, and an FM ribbon antenna. Try a length of wire, about 2m long in the centre pin of the fm socket. Am loop antennas can be obtained from a scrap hifi, or maybe eBay... it attaches to the binding posts on the rear. You will be an improvement with a longer piece of wire on the am... try it out!Dozhttps://www.blogger.com/profile/01517789746939070858noreply@blogger.comtag:blogger.com,1999:blog-7361237673474611033.post-53083712721064474112021-02-17T13:49:14.278+00:002021-02-17T13:49:14.278+00:00I think it has a built in AM antenna but not one f...I think it has a built in AM antenna but not one for FM so you would need one for for FM.<br /><br />Other than that I don’t know why it’s faint.Jim Lemkehttps://www.blogger.com/profile/17138223029240307707noreply@blogger.comtag:blogger.com,1999:blog-7361237673474611033.post-58392754610999362132021-02-17T12:37:02.800+00:002021-02-17T12:37:02.800+00:00You have got an aerial connected?? You have got an aerial connected?? Dozhttps://www.blogger.com/profile/01517789746939070858noreply@blogger.comtag:blogger.com,1999:blog-7361237673474611033.post-17983235012226924252021-02-15T02:01:34.240+00:002021-02-15T02:01:34.240+00:00I have one of these and was able to restore it bac...I have one of these and was able to restore it back by replacing the belts and bulbs with LEDs. however, the radio/tuner does not work (very faint), and was that way when I received it. I am not sure where to start on repairs for it. Do you have any suggestions?<br />thanks!Lil' Drehttps://www.blogger.com/profile/04414107401928641604noreply@blogger.comtag:blogger.com,1999:blog-7361237673474611033.post-21355160003168084712020-10-04T16:34:23.403+01:002020-10-04T16:34:23.403+01:00Not sure, never done them! I'd just remove the...Not sure, never done them! I'd just remove the platter and examine them, it may be as simple as a dirty sensor.Dozhttps://www.blogger.com/profile/01517789746939070858noreply@blogger.comtag:blogger.com,1999:blog-7361237673474611033.post-37641654159675108032020-10-02T15:36:02.938+01:002020-10-02T15:36:02.938+01:00Hi. Thanks for responding. No the arm simply track...Hi. Thanks for responding. No the arm simply tracks across to the centre of the record and then tracks back and stops. With the 7" it lifts and drops perfectly and plays, but 12" it's almost as if it doesn't recognise its there. The arm also won't lift up and down using the button when loaded with 12" record. Out of interest is replacing the optical sensors are hard job? Cheers.Danhttps://www.blogger.com/profile/16176929117384198483noreply@blogger.comtag:blogger.com,1999:blog-7361237673474611033.post-75736159850808407442020-10-01T09:30:19.128+01:002020-10-01T09:30:19.128+01:00Hi Dan,
I would start by looking at the optical se...Hi Dan,<br />I would start by looking at the optical sensors that are located behind the platter. Does it attempt to play the 12" as if it's a 7"?Dozhttps://www.blogger.com/profile/01517789746939070858noreply@blogger.comtag:blogger.com,1999:blog-7361237673474611033.post-36790305566678647982020-09-29T11:31:37.710+01:002020-09-29T11:31:37.710+01:00Hi, I have a MC-8000 that use to work perfectly bu...Hi, I have a MC-8000 that use to work perfectly but will now only play 7" and not 12". The tracking arm picks up the fact that the 7" has loaded, but the 12" doesn't pick up, the arm tracks across but it doesn't drop and play - any ideas? ThanksDanhttps://www.blogger.com/profile/16176929117384198483noreply@blogger.comtag:blogger.com,1999:blog-7361237673474611033.post-61869585915513281372020-07-04T16:41:55.001+01:002020-07-04T16:41:55.001+01:00Just unplug the casette deck milti-pin plugs... ea...Just unplug the casette deck milti-pin plugs... easy to put it back if you ever fancy fixing it!Dozhttps://www.blogger.com/profile/01517789746939070858noreply@blogger.comtag:blogger.com,1999:blog-7361237673474611033.post-31148971926837405582020-07-04T15:13:58.257+01:002020-07-04T15:13:58.257+01:00Hi Andy. My cassette player in The MC8000 its maki...Hi Andy. My cassette player in The MC8000 its making odd noises permantley. To be honest id like to just disconnect it as I only use it for vinyl. Best way of doing? Snip wires to motor ? or a clip of sort?Anonymoushttps://www.blogger.com/profile/16502020917011645469noreply@blogger.comtag:blogger.com,1999:blog-7361237673474611033.post-88735765451089311562020-05-16T00:46:19.850+01:002020-05-16T00:46:19.850+01:00Wish I could help but once I got my unit fixed- l...Wish I could help but once I got my unit fixed- like 3 years ago- I just don’t remember much about the repair. Wish Zi could help more.Jim Lemkehttps://www.blogger.com/profile/17138223029240307707noreply@blogger.comtag:blogger.com,1999:blog-7361237673474611033.post-87355573641713048552020-05-15T20:34:51.893+01:002020-05-15T20:34:51.893+01:00Long since obsolete. Use a yellow LED, and a 1K re...Long since obsolete. Use a yellow LED, and a 1K resistor in series.Dozhttps://www.blogger.com/profile/01517789746939070858noreply@blogger.comtag:blogger.com,1999:blog-7361237673474611033.post-21497194530479298052020-05-13T09:52:42.725+01:002020-05-13T09:52:42.725+01:00Question on the 3 lights at the end of the arm: is...Question on the 3 lights at the end of the arm: is it called PH 101? Looks like they stopped selling them. Which did you get?Ronhttps://www.blogger.com/profile/04924638910997509952noreply@blogger.comtag:blogger.com,1999:blog-7361237673474611033.post-59932464564622780382020-03-13T09:23:06.816+00:002020-03-13T09:23:06.816+00:00Likely to be made from purest unobtainium. If it w...Likely to be made from purest unobtainium. If it were mine, I think I'd be mounting one of those small class-D amplifier modules in there, and finding a suitable supply. Audio will (obviously) be available where the original amp module fitted.Dozhttps://www.blogger.com/profile/01517789746939070858noreply@blogger.com