SONY Giga Juke, Codename 'PROBLEMBOX'

[@MendItMark]

Want to Master the art of electronic repair? Check out MendItLikeMark: www.menditmark.com/menditlikemark

[@alanbenson1505]

With SMD resistors/caps, I touch the flux from the refreshed solder pads with the tweezers. The SMD parts will stick to the tweezers and allow you to remove them from the packet much easier.

[@Zimmy_1981]

Seriously contemplating that course

[@Mikediorama6301]

Hello. I have a Toshiba RT -7077 and the cassette player lost his sound. No sound on speaker output and have the same problem on headphones output. I am manage to fix some electronics, but this seems to be a little complicated for me. It have some chances to be fixed ? I'm a bit far from you Sir. From Romania to be exactly. Untill I will be manage to find someone good to fix it, it will be sit for a while

[@themlotproductions]

⁠, find the circuit diagram and check the audio IC.

[@Mikediorama6301]

@@themlotproductions you know where I can find the circuit diagram? I searched for it on Google, but I found nothing

[@timf-tinkering]

Just discovered this channel thanks to the Tom Evans Audio scandal, and I have to say I'm hooked! The videos are entertaining, informative and very professionally shot. It's wonderful to see a complete and utter expert at work. Subscribed!

[@manusje]

Nice to see Mark working the way I did for the past 50 years. I have seen maybe 10.000s audio/video CDplayers and from the time K6 tube CRT from Philips. I repaired 95 % of all that came in, But working for all kind of factorys/shops didn't give me much time to spend on a repair. I had to produce 8-10 repairs a day to make things economical. Most of the time I run on routine. If you know the basics and the weak points of components used in the days repairing becomes more easy because things come back. For example a cd player will have in most cases a defect laser, so not cleaning but replace laser was first job. Also knowing brand types sometimes you have to swap more than 40 components to make it preventif. My job is down the driain for years now because new become cheap and people replaced stuf for new because of that. My skills no loner needed since about 2000 I closed my shop. I calculated that working for 100 hours a week and calculating costs tools and folowing the educational workshops at Grundig/Philips/Thomson and keeping up with diagrams I made a netto result of 4 Euro an hour. That was the point I desided to no longer sit behind the tele but at the front.

[@getmefix1921]

The slow down playback is a mismatch sampling rate problem. The I2S clocks for the DAC section all derived from the single 27MHz crystal, so there should be a PLL circuitry there, generating 44.1KHz or 48kHz master clock, then the bit clock and word clock. Very easy to see on the scope, obviously :)

[@WOKFM]

I agree. This is a Sample rate issue. Recording from the radio, just recorded at the wrong sample rate, and thus played back correctly (at a lower sample rate). Everything that had been recorded at 48/44.1 (ie the original HDD recording or the CD natively) is playing back at the wrong sample rate.

[@crunchyfrog555]

I would agree. Listening to it playback it sounds like it's near anough half speed as it's tonally in the same key or thereabouts. I haven't checked of course, but I suspected it was a mismatch or some sort of division problem.

[@WOKFM]

@@getmefix1921 I took the audio from Mark’s video and aligned it to an original recording. With a speed multiplier of exactly 1.5, Mark’s audio aligned perfectly. This suggests that 48Khz audio is playing back at 32KHz. This suggests that it’s not a problem with the 27Mhz itself, but more with a selection on the PLL to derive the appropriate sample clock. Since 32Khz is a valid sample frequency, I would suggest that selection of 32/44.1/48 is controlled by software, driving some tracks in to the divider / PLL device feeding the DAC (and ADC). Could even be a resistor dropped off, or a dry joint, if this is controlled by 2 lines, giving a binary selection of 4 possible sample rates, and the loss of one track is selecting 32 rather than 48. (I appreciate the ripped CD would be 44.1, so this isn’t an exact diagnosis, but the ratio is suspicious). I reckon this is an easy one to trace, looking at the DAC/PLL and not to do with the main processor itself.

[@cls9474]

@@WOKFM Yep. The sampling clock would be my guess too. The clock drives the output shift registers in the main chip. The CD rip is purely digital and has no effect on the playback speed. It's just data.

[@hifiandrew]

I'm no electronics nerd but i was gonna guess DAC issue probably related to the clock

[@fantummenelkinstruments1959]

A reset could do the trick. According to the manual.... "reset the unit by pressing stop and power". Also, since it's always bringing up the settings page, there might be a dead memory battery somewhere there. The thing is basically a computer, after all.

[@briangoldberg4439]

definitely worth a try isn't it?

[@Nukle0n]

It keeps asking for an RTC server to re-sync the clock so there's certainly something to that. But maybe Mark just never set the time and date.

[@andersvandegevel8355]

The fact that the CD player worked at the correct speed after being in the PC, and until it was used to record to HDD, tells me it is 100% a SW setting. I would trawl through all the menus, and like other commentors have mentioned, check for a dead RTC battery

[@EsotericArctos]

It could also be a hardware ADC or DAC issues as the whole stream looks digital. It's not using analogue audio from the CD drive.

[@piouhgd.dghuoip]

I wonder if it would have kept playing CD’s at the correct speed if not for the rip test (when the drive spun up beyond 1x)

[@piouhgd.dghuoip]

In any case I’d be importing some media ripped elsewhere to establish whether the speed issue is a system-wide issue.

[@andersvandegevel8355]

@@EsotericArctos perhaps, but why was it ok until attempting a rip? Sounds more like the SW changing the output setting of the CD drive

[@andersvandegevel8355]

@@piouhgd.dghuoip I suspect so, and it wouldn't be terribly hard to test. With long enough IDE cables, you could even do it in situ

[@rammes1]

i played the video at 2x speed. fixed the giga juke playback -)

[@alan.schertz]

this is brilliant!

[@Synthematix]

Nope, the pitch will still be the same

[@AlexWhitman-ep1sk]

Oh my gosh that was funny. 👍

[@alan.schertz]

@@Synthematix good point as well!!!

[@jb130hp]

出院！

[@mbunds]

This was about as educational as any repair production could be; “Today we’re going to repair a unit with examples of everything possible that can go wrong, from poor recap work, to dry solder, to dead capacitors remaining, to repair-induced SMD resistor loss, etc. This production is seriously inspirational, thank you!

[@316neil]

I love sitting down with a cuppa and finding a new Mend it Mark video 😀

[@unsichtbar08]

that's probably a Brit. As a German, I'm watching the video with a beer in my hand.

[@frysauce2]

I was putting together a monitor on a vesa mount when the “I’m sad” bit nearly killed me. Got a heck of a fit of hiccups too. Well worth it. Thanks Mark, you’re a joy to listen to!

[@simontaita]

As an electronics tradesman, your videos are awesome - I could watch them all day. Keep it up mate!

[@Miranda-ec3xt]

I found this channel like 2 weeks ago I watched all episodes was waiting for a new one.

[@eugbrat]

Haha same here meanwhile all my other subscriptions building up feeling neglected 😂

[@davelowe1977]

That makes you as sad as the rest of us.😊

[@DrLoverLover]

Consumer addict

[@sw6188]

Like 2 weeks?

[@njakts]

That's what I did when I discovered this channel. I found that his smooth and calm voice always made me sleepy, so I was watching him at night when trying to fall asleep. Worked every time 😊

[@Recessio]

28:48 "Just stick it on eBay as untested - that's what everyone else does!" So true Mark...

[@whatcher8151]

Then it just keeps going back to Mark

[@cjh0751]

That Gigaduke is enough to make a grown man cry 😭😂

[@timvermorgen6387]

I got grey overnight from that piece of trash. :D

[@dazed73]

Mark, thanks for all of your wonderful videos. I've watched most of them and have learned much from you. Keep them coming!

[@FHacivelioglu]

Hi Mark, I think the problem is related to the sampling rate on the digital section. For example, if a track has a real sampling rate of, let's say, 48KHz, but the device plays it at 44.1KHz, then you will hear a similar slow sound and vice versa. You have the schematic and have access to different boards. Please check 24.576 or 12.288MHz (for 48/96/192/384KHz sample rate) or 11.288 (44.1/88.2 etc.) crystals if available. Other than these perhaps some external automatic sampling rate converter (ASRC) IC may be available and does not sync to the main DSP/DAC etc. For example, some DACs or ASRCs may have default 44.1KHz own clk whilst the sync pathway provides 48KHz. On I2S communication you will need 3 wires minimum; BCLK (bit clock/Sample Rate), LRCK, DATA and optional CLK.

[@mosaiques23]

Yeap!! Agreed.

[@TheGroovesRus]

Notable that the recording of the radio sounded fine.. as if the sample rate of the recording matched the sample rate of playback

[@mosaiques23]

@@TheGroovesRus I don't think the radio uses the decoder. 🤔

[@jaycee1980]

Indeed. The CD playback would be done using DAE.. effectively the CD drive is "ripping" the digital audio and this is being played back by the main board. Almost certainly something wrong with the master audio clock.

[@themadmallard]

do you think any of that could be software driven? like on bootup its loaded from a rom or from the hard drive in some hidden partition?

[@RickMahoney2013]

What a great color match with the paint for the lid.

[@ChishanFipz]

Shows the state of modern music today if you can't tell that the speed is right or not after playing 4 different tracks - Priceless!

[@malcolmcheyne5258]

From where you have got to I would suggest check RTC battery esp as unit is 2007, set the time manually (user manual says unit will not work properly with out this) then check the Option setting for monitoring the recordings. Manual says recording (ripping CD) will be quicker when audio monitor setting is off (factory default), maybe the slow playback fault lies in that area of control. Good luck if you decide to delve deeper. A factory reset is also very easy to try. Love your channel and skills.

[@dervwfahrer]

Is there maybe a Setting in the Software for Playing Speed ?

[@5p0ng3b0b]

I have a Gigajuke NAS-E300HD. I upgraded the SATA 80Gb HDD to a 128Gb SSD about 10 years ago (Cost £120 back then!). The firmware was on a linux partition in the drive so you might want to backup/clone it on a PC while you still can. Get a PATA to SATA converter from Amazon for £7, a 2.5" to 3.5" mounting bracket and a cheap SSD to future proof it. I would have suggested the internet archive for a FW download but they've been hacked again!

[@vikram8303]

the best thing about Mark's videos is his intro music.

[@prillewitz]

I still wonder what piece of music that is! Shazam doesn’t recognise it!

[@naikrovek]

I can't tell if you're saying his video content is bad or that his intro music is extremely good.

[@vikram8303]

i ment that i love his video, but the intro is the cherry on top. I find it very comforting and friendly.

[@themcc1879]

Being the vapor wave fan that I am, the playback was ｐｅｒｆｅｃｔ . Thanks for the video.

[@PhoticSneezeOne]

You could try a factory reset of that machine! "Feels" like some bytes "flipped" in that chip!

[@donnierussellii4659]

Hold the Stop (black square) and Power buttons. You can also format the hard drive.

[@trevor245]

Your initial theory for as to why the cd playback was half speed would likely not ever have been the cause. A cd needs to spin at a fast enough speeds to be able to read the data. If it is half speed it simply wouldn't function. And since this device also reads the track titles and stuff there is likely a form of buffer that first reads the data nad plays it back not from the cd but from the internal storage instead. I think your issue is either a software setting or an issue in the dac circuitry. If there is no software option for playback speed there likely is a mismatch between the bitrate that is being supplied to the DAC and the bitrate the DAC is converting. I do not know how to repair DACs but I would assume that this could be caused by a faulty capacitor or similar component preventing a chip from performing one of its functions.

[@glynnetolar4423]

I concur, I know if I show down a CD player enough it will fault. And it's like not even 10% slower before it will fault. And when I say fault I mean it will quit and spit the disc out.

[@PeterMilanovski]

I have slowed down a CD with my finger while playing and the music slowed down like it was a vinyl record.... Not sure if all CD players are like this but I remember thinking that I didn't expect that to happen and also thought that all CD players are like this....

[@trevor245]

@@PeterMilanovski it is possible but most cd players, especially ones with as much digital integration as this one has, don't work like that.

[@PeterMilanovski]

@@trevor245 I can't speak for every CD player as I have never had the opportunity to play around with all of them, we can only assume that if there's one, there's possibly more... I have a Yamaha device that is similar to this Sony and really hope that this doesn't happen to it! I can't speak for the Sony but as for the Yamaha, in my opinion is what CD players should have become! It doesn't do network streaming and I think that it doesn't need to, it has a user replaceable internal HDD which contains all the music I want it to. Nor does it have a built-in tuner but should I need to record from the radio, I have the ability to record from anything connected to the system.... I'm old school so I like my hi-fi in a stack of components, I never really was a fan of Yamaha equipment, I have always gone for Sony or Technics, but I came across this Yamaha CD/HDD recorder which I never knew that such a device existed and I started looking into what else Yamaha had to offer! I was surprised to find that Yamaha had literally tried everything! There's a system component that is perfect for everyone! They might all look the same but each one in it's own category has a feature or function that will suit you.... I have since moved on from being a Sony fanboy to being a Yamaha fanboy.....

[@Henrik_Holst]

@@PeterMilanovski sorry but that is not possible with how cd audio is stored on the cd, you are either massively trolling us or you are remembering wrongly. In fact a cd spins at different speeds from outer to inner tracks and that is just one tiny bit of why this cannot work this way. There existed expensive dj players that allowed you to scratch a cd like a vinyl but they operated on the buffered audio stream and not on the rotation spin of the cd.

[@rainiergruber9022]

"I think Mick Jagger earned enough money without my help" 😂

[@MothKeeper]

"I think Mick Jagger earned enough money without my help" 😂

[@trentbowman2117]

Instead of "Start Me Up" we got "Slow Me Down".

[@peterlarkin762]

And it made a grown man cry.

[@whatcher8151]

But it never stopped

[@neilbarnett3046]

"Start me up"... But slowly. 15:04

[@glenwhatley4125]

Used to work for Panasonic back in the 90's. It's almost amusing now to think it was actually economically feasible to repair those portable CD players, but we repaired sizes of them. Before all the servos became automatic, we actually had a gig we connected and made the adjustments manually while watching leds on the test gig.

[@simonbaxter8001]

Mark, check the capacitors on the XTALs for goodness! I've had various microprocessor designs that show a 'typical' waveform from a crystal, but it wasn't clean (or sinusoidal enough) for the micro to see it as a stable clock and if the clock isn't stable, then the internal PLL will be all over the place trying to lock onto it. Another thing to check is the display clock frequency (in the comms from the micro to display) when it's running at normal playback and when it's running slow. That will confirm it's a processor clock and program execution speed issue.

[@warphammer]

Yes, this was my thought exactly. If it's a dodgy clock then that also explains why the FM recording works - the bad clock would match record and playback.

[@pnnielsen]

I totally agree! My first thought actually...

[@DeadKoby]

Having Aaron Carter loaded on it would break any music player.

[@jdekong3945]

😹

[@exiledscouser919]

He lived the lifestyle of a bad boy rapper and died of a drug overdose in his bath. He was aged 34.

[@fullwaverecked]

Ha! Good one DK!

[@Mats8686]

@@exiledscouser919should be mentioned that Aaron Carter was the younger brother of Nick Carter, a member of the 90’s boygroup The Backstreet Boys.

[@SproutyPottedPlant]

@@exiledscouser919hmmm suspicious! Did he forget to thank Beyoncé?

[@peterh1386]

I recommend downloading the ripped files from the HDD onto your PC to see whether the problem is related to the storing/recording of the data, and/or the playback... Just to be sure...

[@djkazetta]

That's a good one

[@RaduTek]

Knowing that it's a Sony, the audio files on the HDD are probably encrypted, to not upset the RIAA and their music label division.

[@AltCutTV]

Seemed it actually records the CD audio rather than ripping the data though. So can't be much point in encrypting it then. And SCMS would allow one transfer either way.🤔

[@sw6188]

@@AltCutTV It can't be recording the CD audio (analog) as the connector for that on the rear of the drive doesn't have anything plugged into it. The only means of communication with the drive is via the IDE port.

[@sw6188]

@@RaduTek I doubt they'd be encrypted but they may be some kind of proprietary format that isn't readable on a PC.

[@FloydYESterZep]

Your patience and steady hand rival that of a good surgeon. Are sure you weren't a sawbones in another life? It is so nice to kick back and watch you work. Wonderful content my friend!!

[@rjones5296]

I do have to admit your color matching on the top cover paint job is beautiful

[@stankogalic3701]

Playback is slow when you play CD and also when you play from HDD. Probably the same thing will happen via USB port so i didn't understand your inspection on optical drive. Capacitors were bad but that did not have anything with slow playback. A bit of wasted time on your part inspecting optical drive. FM tuner playing just fine so there must be a problem on the main board related to sampling rate or something similar somwhere around. I am not expert for that, just some logical thinking. Can't wait part 3 if there will be something. Best wishes!!

[@zaprodk]

I agree on the optical drive part. It's run as a CD-rom drive, nothing inside the drive would resample the data.

[@El-Monopolio]

We need to get this fixed don't we?

[@chrisnorman1653]

Surely this is a clocking issue. While the 25/27MHz crystals are fine, is the appropriate clock arriving at the other end?

[@Sonnell]

Yeah, I was wondering why did not he tried to follow and measure these around. Cost nothing to check a bit more. Perhaps simply an other failed cap somewhere along the line.

[@wingracer1614]

Yep, either a clock issue or perhaps more likely, just a sampling rate issue. I believe these things were capable of using a few different sampling rates and one bad solder joint, blown cap or another missing resistor could be causing it to choose the wrong one.

[@MrGeoffHilton]

Thanks

[@AstrosElectronicsLab]

The "Ntpserver" (Network Time Protocol) is for time and date. Windows, and other OS' use a similar thing in the system clock to keep the time correct.

[@whiletr]

I think it is missing a lower bit somewhere in DAC counter. You can probably check FM and see if it's output is below 12 kHz then it is operating in that same low sample rate, but sounds normal because audio loop routine is bound to sound frames and it just encodes the radio input in same clock

[@madgebishop5409]

seems like a software setting, half speed selected deep in a menu somewhere? the first setup page that pops up when the unit was turned on looked like it was trying to sync online aswell so maybe just fill in the details and plug in a network cable ?

[@matt-g-2501]

I like your videos. And sometimes it‘s a tricky candidate on your desk and challenge you. Hint: both CD and harddrive use the same IDE bus and both running slow. Before the DAC is a buffer controlling the speed of data delivery from the IDE bus. And even with half speed it still sound like music. If there is a mismatch of sample rate it will never sound like music.

[@thechrisgregory]

From all the comments, I get the feeling that this repair is not over just yet !

[@SimonHollandfilms]

brilliant, brave and still broken. We all learn so much from your skilled hands.

[@waldorfvonmuppet7399]

Congratulation for you First YT 100K Plakette 🎉

[@QARepair]

I never seen any one who are so accurate like You, all respect 👍

[@JonDoe-zi3mh]

I get the impression that this could be a software setting somewhere, like KZbin speed control. Great job fixing it, as usual.

[@chrisg6597]

Are you sure those crystal oscillators are OK. Probe capacitance could cause them to lock to the right frequency. I'd be tempted to do all probing during playback of the music when it's at the wrong speed.

[@willw7743]

This is what I was thinking. Not sure if mark noticed but the playback time in the top right corner seemed to be 50% slower when there was an issue. I’m curious how accurate the system time is.

[@brettkaufman2299]

Thank you for your videos! You are very educational and Love your humor! Cheers!

[@oninbridders]

Love your little chuckle

[@OldPoi77]

Bad caps on the mainboard causing the audio codec chip to be unstable, there also may be a super cap used to keep the memory like in the Xbox etc, that may have gone bad and not keeping the settings, It is only supposed to keep power for a short period they usually have a gold stripe on them.

[@JimmyRJump]

Reminds me of a time in the early seventies, when Belgium went from 110V Two Phases mains to 220V Three Phases mains. My dad laid the wiring in our house himself but at some point he had to change stuff and my cassette player played at half speed, or thereabouts. I remember I had a tape on which I recorded 33rpm songs at 45rpm speed and they played almost perfectly when the voltage in the house was switched back from 220 to 110Volts Two Phases.

[@arturklarecki7256]

When you replaced missing 0402 resistor I have noticed that SMT capacitor next to it have got signs of corrosion. So device could have been done either liquid damaged or used in humid environment. I would suggest to remove MB and check under microscope whether you can find corroded components, tracks or vias etc.

[@dwrussell5155]

The slowdown problem is completely fascinating.

[@davidblankenship7985]

I've done 01005 resistors by hand. I feel they're actually easier than 0402 if you have enough magnification and the proper soldering equipment

[@OnStageLighting]

Seen plenty of general electronics techs on YT get in a muddle with the smaller stuff. Just takes practice and decent tools.

[@AudioGuyBrian]

Great attempt to fix that clunker. So many alternatives to these GigaJuke boxes these days. I looked them up online and I cannot believe they still sell for around $600 - $1,000. That is just nuts.

[@timmooney7528]

A used desktop computer with an FM tuner card would be less expensive

[@AudioGuyBrian]

@@timmooney7528 A cell phone with My"Heart"Radio app, KZbin, and local MicroSD Card with your ripped FLAC files on it. Done.

[@TEDodd]

@@timmooney7528 but wouldn't fit in the rack with the rest of the Hi-Fi system.

[@nikooplayer]

You were great Mark as always... As others have said, it is definitely a software setting for half speed playback. There should be a button or combination of buttons for that.

[@thirstyCactus]

Adrian Black of Adrian's Digital Basement swears by a "push and twist" method of SMT electrolytic cap removal wherein you grab the body with pliers, push down toward the PCB, and rotate a quarter-turn. It looks super dodgy, but is quite effective and doesn't lift pads (despite expectation). Not needed if you've got the proper soldering tweezers, but a bit faster perhaps.

[@followthetrawler]

Surely it's a software setting? Try going through the full network setup, then working through all the record and playback settings.

I think the "slow" playback is rather a stuttering, like the DAC is going into an underrun then is fed the next chunk of WAV data via DMA again (maybe you can see it looking at the output waveform with a scope). I'm guessing something is overwhelming the CPU with interrupts, that's why it can't keep up feeding the DAC. The radio is probably not going through the DAC, so it's working fine. Either it is a component on the mainboard, like a for example an RTC with a defective battery or goldcap which makes it fire its alarm interrupt all the time, or it is actually the HDD. Constant IDE (error) interrupts can also make the CPU slow down to a crawl. If its not the HDD it can also be the IDE cable - yes they can go bad!

[@craigscannapieco3858]

Maybe it has a pitch control in the settings

[@Billy-burner]

Why would it change the pitch on it's own then..?

[@PaulsRoadshow]

I did wonder that a playback option for pitch control is wound down to min?

[@robertatkinson6864]

@@Billy-burner Because it's not maintaining it's settings. The fact that it does a long setup each time it's plugged in implies a depleted battery on the motherboard that isn't maintaining the system settings.

[@Billy-burner]

@@robertatkinson6864 😂😂😂😂

[@sergeynpotapov]

Ох, давно ж тебя не было... Уже соскучились по твоим ремонтам. Привет из Сибири!

[@MI-od6wd]

you are such a junior ,knows how to do anything

[@TheBudgie29]

I have a Sony one that does something like this. It was the top of the range back In the day. Record to the HDD, then you could record on to a DVD+or-R or RW. I just swapped out the HDD for a new one, and The DVD ROM for a new one too. But mine Is all SATA Cables rather than IDE. And If anyone has one of these, and It suddenly stops recording to the DVD or writing from It. Then It Is the SATA Cable (Blue or Red one) that has stopped working. Change this out for a new one, and You are good to go again. Thanks Mark for sharing this. Sad You could not Fix It properly. till next time, keep 'Em coming.

[@chrism2964]

Definitely a settings issue. Digital music doesn't play back slowly for analogue reasons.

[@JoseMateoBastian]

cleaning the dust made it work! nice job!

[@ceevee369]

Don’t let us down Mark ! You can fix it 😊. Wiring for the solution!

[@ecc84]

We've all been there and done that Mark, bloody surface mount bane of my life lol

[@zoranzoranowski280]

Mark, still The Best - Ever!!!!! :) //Thanks for right choise...The Rolling Stones!

[@7tkh]

After that 24V shock it decided to become a 60Hz device. Runs slow on your 50Hz mains ;) A tricky fault. As many suggested in the comments, a configuration reset is worth a try. Maybe the playback speed is somehow linked to an RTC which might have problems because of a dead backup battery or something? Just an idea. Thanks for your interesting and also entertaining videos!

[@GuillaumeLesDocs]

Your videos are exciting and very well shot. Thank you!

[@martijnappeldoorn8686]

I think I would check the area around the sub system controller, ic 401 and xtal x401, 16Mhz. And the 11,289Mhz x301 around ic313. Could be something silly as a cracked solder joint/cracked smd component because it play once at the correct speed.

[@chimpana]

Aaron's voice has finally dropped!

[@crunchyfrog555]

I do love repairing electronics but dear god do I despise surface mount components especially those so bloody tiny that you drop them, good luck finding them again.

[@chrisnorman1653]

You now have 1kohm to ground from your main power rail. Good luck!

[@crunchyfrog555]

@@chrisnorman1653 Yup, as so often happens, you can't find it, you shake the unit, and confident it isn't in there, you put it back together. Then fry the bloody thing because it found the wrong point to get stuck in.

[@OnStageLighting]

SMD are much easier to work with, often decent markings for those of us with enough colour vision deficiency to hate resistor colour bands. Often don't need to take the board out too. It is funny watching non-microsoldering techs make a mess of it though.... 🙂

[@crunchyfrog555]

@@OnStageLighting Now that's true - the labelling and that is a vast improvement over silly old colour codes. My biggest bugbear is being disabled myself I can't adequately deal with them - too small and fiddly.

[@yottaforce]

I would check the DAC clock and see if it's within spec. If definitely sounds like something is running half clock frequency. Both CD and MP3 part runs slow indicating the problem is common among those two. (CPU, ADC). The Jukebox can play CD's in two ways. Either by using the DAC in the drive itself using the three or four pin cable or by reading the bits of the drive and play them using the CPU. When checking the crystals with the oscilloscope, do it while you are playing music. The capacity of the probe can load the crystal. Also, perhaps reset settings to factory default if there's some stupid esoteric settings somewhere that can cause this.

[@whatcher8151]

Watch, there probably bis a setting that can be made by the front panel. Get a repair or maintenance manual or at least an owners manual. After all it is a computer with a display and a hard drive so there may be an optional setting to be had on the display via buttons.

[@WombatsNews]

Yes, It will be in the owner's manual under playback and using the remote

[@alisharifian535]

I have an old Samsung VCD, it can play on keys higher or lower the actual tone. I think there is a similar situation here, so there is software setting in the menus that you should check. Playback is configured in the half speed or something.

[@RaduTek]

IMO it has to be a software playback speed setting. The device is basically an embedded computer, with a discrete DSP chip, probably because the embedded CPU it has is not fast enough to do audio processing or encoding/decoding. If it was a hardware issue, it wouldn't be working at all or malfunctioning wildly.

[@JohnnyMotel99]

oooh Mark, new 12v driver...from LIDL no other. Good choice.

[@london_architect]

Mark, I really don't understand HOW you do what you do, and how you KNOW all that there is to know electronically....all I can say is that I consider you The Quiet Man of Electronics...which means you're not a typical YT 'shouty' presenter...instead, you present the problem - and then solution, with unwavering humility and make this subject super-interesting - you're a rare find, please don't change...

[@TimHollingworth]

So near yet so far. If I were attemptinng to fix it, it would have been in the bin on video 1. Looking forward to video 3 when you do get it working properly. I know you have sleepless nights pondering what it could be! 🤔😁

[@jamescollins6085]

You've got yourself a vaporwave machine.

[@Rich77UK]

I used to hand solder 0402 and QFN chips a lot. Its an art and never particularly easy. Now im 20 years older....i can still do it...but its a real pain.

[@michaeldibb]

The CD is playing slow, but wasn't the MP3 (3:38) from the HDD also playing slow? Which points to something else in the machine? Great video as always! :)

[@Mr_Wh1]

Sample rate settings could be set wrong.

[@DumahBrazorf]

probably it have been ripped from a cd like Mark did. so "good" mp3s into the hd or the cd (does it read mp3s?) would play correct.

[@Mr_Wh1]

@@DumahBrazorf What?

[@Jeff-y5r]

I know you are probably a busy guy but I love the videos every time I see u post a video I watch all they through I always want more videos from u and keep up the good work Mark 💯

[@JamesHalfHorse]

There has to be a playback speed setting or maybe a "jog wheel" type thing likely on the remote that lets you speed up slow down playback like some of the fancy VCRs had or a sample rate setting that has it playing slow. Digital won't play slow due to a mechanical problem. It just breaks up and stops working like an HDTv signal. It's there or not. Good luck with it. I don't have a chance to read all the comments but I think someone mentioned a firmware reset procedure. I would look there. I just can't think of any hardware fault that would cause anything digital to have a slow playback speed like that. Otherwise I think you fixed it. Good luck.

[@techskeet]

@MendItMark I'm sure you already checked all outputs on clock generator IC1701 and clock driver IC1601

[@stephengorin3059]

For a re set, try pressing the button ( stop ? ) under the cd button and the power on button at the same time. according to the work shop manual this will do a re set. I hope this is of some help.

[@viziontex]

Its in the settings of the unit

[@app0the]

I could hear some crackle on top of the slowed down sound, so I think take a look at the DAC/ADC boards for cracks and poor contact. There is something going on with the DAC data bus, the main board is perfectly fine I betcha.

[@DD4DA]

Great Job - i like your channel and your work. In addition - to listen you is a good training to improve my english knowledge. Thanks for that video...greets from germany

[@BaconbuttywithCheese]

Doing the "setup" after each power cycle implies a missing battery voltage somewhere. Are there any UI menus apart from just play/stop etc?

[@MonguzTea]

It always does that when unplugged. It has a linux computer in it which needs a full reboot.

[@美麗的春天]

All well and good, but what about cleaning the right side of the device? Wouldn't it have been a good idea to use a vacuum cleaner when sweeping the left side?

[@paulmichaelfreedman8334]

I got my set of different size smd resistors this week. My goodness those 0803's are tiny! managed to solder a couple but it took some practise.

[@mosaiques23]

5:05 Max Bruch's Kol Nidrei on the radio. Nice!!

[@miketaylor247]

Hi Mark, the setup screen, choose language, time settings etc and country. Could be the sample rate or codec not behaving with our 50 hz mains cycles. Worth a shot. I see this Telecoms systems. Good luck.

[@DrWilds-v2k]

Have my old NAD C370 blow up last month... wish you could fix it , loved that amp...

[@keithmatthews1673]

The sony pro walkman had speed adjustment with a pot controlling a phase locked loop circuit or something like it. Your machine may have something similar to change playback speed and it will be controlled with software if there is no pot. My walkman's circuit for speed adjustment went bad and is still in the cupboard!!

[@tonttutonttu216]

Definetly a clock signaling problem. Used to see stuff like that in 286/486 era computer repairs. Device can even be so old school that timing comes from grid power frequency.

[@TheHexCube]

Patience of an Angel. 👍👍👍 🏴󠁧󠁢󠁳󠁣󠁴󠁿

[@MarkFraserWeather]

You could try playing music from the USB stick to see if that plays at the correct speed.