Vintage Marantz 2245 Stereo Failure Troubleshooting - Repairing Receiver Or Amplifier With No Audio.

Подписаться 51 тыс.

Просмотров 26 тыс.

50% 1

I use a Marantz 2245 to show you how to troubleshoot vintage stereo equipment including receivers and amplifiers when you have no audio output and the speaker relay will not engage. This video can be used with other models of vintage Marantz, Pioneer, Sansui and others to help trace down similar failures. Fewer and fewer technicians are remaining that can service vintage audio equipment. With some knowledge vintage stereo problems can be simplified.
Other Classic Stereo Equipment Video's -
Vacuum Tube Heaven - • Vacuum Tube Equipment ...
Kenwood KA-5002 Integrated Amp - • $45 - Buy This Amplifi...
Sony TA-E88B Preamplifier - • Sony TA-E88B Preamplif...
Technics SE-9600 Power Amplifier - • Technics SE 9600P Powe...
Pioneer SPEC -1 And SPEC -2 - • Pioneer SPEC 1 SPEC 2....
Marantz 10B Tuner - • Marantz 10B Vacuum Tub...
Nakamichi Dragon 1000P 1000MB 1000 DAT - • Nakamichi Dragon 1000P...
Sansui BA-5000 Power Amplifier - • Sansui BA-5000. The Mo...
Pioneer SX-1980 Complete Edition - • Pioneer SX-1980 - The ...
Rotel RX-1203 Receiver Part 1 - • Rotel RX-1203 Stereo R...
Rotel RX-1203 Receiver Part 2 - • Rotel RX-1203 Stereo R...
Rotel RX-1203 Receiver Part 3 - • The Best! Rotel RX-120...
Trio W-40 Vacuum Tube Receiver - • Trio W-40 Vacuum Tube ...
Kenwood KA-3500 - • Kenwood KA-3500 Integr...
Dynaco Stereo 70 - • Dynaco St-70 Vacuum Tu...
Bose 551 Receiver And 901 Speakers - • Bose Spatial Receiver....
Mitsubishi Stereo System - • Mitsubishi Vintage Ste...
Akai GX-255 Open Reel Tape Deck - • Reel To Reel Tape Deck...
Shootout! SX-1980 vs Nova300 - • Pioneer SX-1980 - Peac...
Harman Kardon Sixteen - • Harman Kardon Citation...
Monster Receivers From The 70's - • Monster Vintage Receiv...
Marantz 2265 - • Marantz 2265 Vintage S...
Kenwood KR-8050 - • Kenwood KR-8050. Resto...
Teac X-1000R - • Teac X-1000R Reel To R...
Pioneer SX-1250 - • SX-1250 - The Best Pio...
Pioneer SPEC-1 - • SPEC-1 - Pioneer Pream...
Pioneer SPEC-2 - • SPEC-2 - The Most Powe...
McIntosh MC2205 - • McIntosh MC 2205 Power...
Nakamichi Dragon - • Nakamichi Dragon Casse...
Sansui BA-5000 - • BA-5000 Sansui Power A...
Marantz 2500 - • Model 2500 - Marantz R...
Sony TA-F6B - • Sony TA- F6B Integrate...
Sansui CA-2000 - • CA-2000 - Sansui Pream...
Luxman M-300 - • Luxman M-300 Power Amp...
Scott 340B - • Scott 340B Vacuum Tube...
Marantz 2270 - • The Best Receiver Ever...
McIntosh 752 - • McIntosh 752 Vintage S...
Sansui AU-9900 Part 1 - • Sansui AU-9900 Vintage...
Sansui AU-9900 Part 2 - • Sansui AU-9900 Vintage...
Sansui AU-9900 Part 3 - • Sansui AU-9900 Vintage...
Sansui AU-9900 Part 4 - • Sansui AU-9900 Vintage...
Marantz 23 - • Marantz 23 Stereo AM/F...
SAE 2400 - • Video
Nikko 440 - • Nikko 440 Vintage Ster...
Nakamichi LX-5 - • Nakamichi LX-5 Vintage...
Kenwood Eleven III - • Kenwood Eleven III - V...
Sansui G-9000DB - • Video
Yamaha CA-2010 - • CA-2010 - Yamaha Integ...
Nakamichi Dragon - • Video
McIntosh MC2505 - • McIntosh MC2505 Power ...
Sansui Eight - • The Best Receiver Ever...
Sony EL-7 - • Video
Pioneer SX-1980 - • SX-1980 - The Most Pow...
Akai GX-220D - • Akai GX-220D Reel To R...
Pioneer A-27 - • Pioneer A-27 Integrate...
Nakamichi Digital Products - • Rare Nakamichi Digital...
Sansui G-9000DB - • G-9000DB - Sansui Rece...
Pioneer Silver Rack System - • Pioneer Silver Rack Sy...
Troubleshooting Failures In Vintage Audio Equipment -
Vintage Audio Repair In 30 Minutes! - • Repairing Vintage Audi...
Vintage Stereo Repair - • Vintage Stereo Repair ...
Phono Repair And Troublesome Transistors - • Phono Troubleshooting ...
Hakko 808 De-soldering Tool A Must Have - • Vintage Stereo Equipme...
Hazards Of Reel To Reel Tape Deck Repair - • Reel To Reel Stereo Ta...
Troubleshooting No Audio In Vintage Equipment - • Vintage Marantz 2245 S...
General Failure Troubleshooting In Vintage Equipment - • Troubleshooting Failur...
Reforming Speakers - • Bose 901 IV Speaker Fo...
Checking DC Offset On Vintage Amplifiers - • Checking DC Offset On ...
Why You Must Replace Old Electrolytic Capacitors - • Save Your Electronics ...
Help For the Vintage Audio Fan -
Buying Vintage Audio? - • Buying Vintage Audio? ...
Finding A Technician To Fix Your Equipment - • Finding A Technician F...
Should You Buy Vintage Or New Stereo Gear - • Should You Buy Vintage... Beware Of Vintage Stereo Ad's - • Vintage Stereo Equipme...

Развлечения

Опубликовано:

2 дек 2019

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист

Посмотреть позже

Комментарии : 70

@victoryfirst2878 4 года назад

I am not a electronics repair guy, but I fixed my Samsung TV using your techniques of tapping on the boards and resoldering. My problem was the transformer from the heat cycle broke the solder joints. Desoldered with a ribbon and resoldered and bam fixed. Also cleaned everything inside as the original owner used a coal stove and the inside was just coated like dust paint inside the unit. The TV is still working perfectly. The age is roughly when the flat screen TV come on the market, my friend just wanted it gone. He paid 4K for the unit new. I scored for sure. Love your video, lots of great information for the novice who understands electronics to some degree but not totally.

@vintageaudioaddict 4 года назад

Thank you very much for the kind words and for watching. Great job on getting the TV going again. More and more people are fixing their own old electronics as it's difficult to find repair shops. Most of today's electronics if they beak you wait for trash day.

@victoryfirst2878 4 года назад

@@vintageaudioaddict Amen VAA, the number of good old used equipment that is out in the field is just mind boggling for sure. So nice you give us such great pointers to make the job go easter. THanks again VAA!!!!!

@dugaldhutchings404 4 года назад

"You guys who don't have any experience - you're gonna get some". Great quote !

@vintageaudioaddict 4 года назад

LOL

@viewer54322 4 года назад

True about the fasteners. I bought a box of cheapo ziplok sealable baggies. Each screw (or group of identical screws like "face plate") removed gets put in a bag and labelled with sharpie. Sometimes a project might go on the back burner for a few days, weeks or months. Saves a ton of time in that situation.

@vintageaudioaddict 4 года назад

Thanks for watching. So true and a good idea using the bags.

@SDsailor7 4 года назад

I do the same thing plus take pictures.Cheers

@RanceHosein11 Год назад

What do you do with knowledge.. Pass it on.. Thank you so much 💯%❤

@R3TR0R4V3 4 года назад

Good stuff! Hope to see you do a video on the 2230 someday.

@vintageaudioaddict 4 года назад

Thank you. I have a bunch of Marantz receivers in the stable but not a 2230. Hopefully someday.

@kennethiman2691 3 года назад

Learning electronics via RU-vid. I had no idea how much there is to it. Certainly a great way to keep your brain sharp!

@vintageaudioaddict 3 года назад

It's a fun hobby for me. Like cooking you are always learning something new.

@dmzflightmedic Год назад

Great video. I just purchased a 1977 Realistic STA 72 (for practice troubleshooting). New hobby. It turns on, finds fm signals but the speakers crackle and the noise reduces down to nothing, then there is no sound at all. Never heard that happen before.

@vintageaudioaddict Год назад

Thanks so much. You picked a perfect unit to learn on. Good luck!

@cshyne 4 года назад

LOVE yer videos!

@danraducan5336 Год назад

Buna dimineata! In primul rand imi cer scuze daca in acest mesaj sunt greseli tehnice - nu ma pricep asa de bine! Am un amplificator AKAI AM-U310 din 1982 - original (MADE IN JAPAN) - RESPECT MAXIM pentru AKAI, nu stiu ce mai rezista in zilele noastre 40 de ani (si a fost destul de solicitat) si cred ca inca mai rezista! Am instalat un nou radiator si o noua carcasa - ambele din cauza problemei stiute cu incalzirea STK 3042. Chiar de atunci il am. Ar merge si acum, dar cand il bag in priza, fara nimic conectat (doar grupul A ale carui fire au fost direct lipite cu pistolul de lipit, in interiorul amplificatorului pe placa de conexiuni din cauza ca, contactul in acele piese de blocare a firelor, din plastic care se rotesc - rosie(i) si / sau neagra(e) din spatele exteriorului amplificatorului, nu mai era un contact fest, celalalt capat al firelor nu a fost conectat) , n-ar fi trebuit sa se auda un clinc? Acest clinc s-a auzit tot timpul pana atunci, dar nu stiu ce era conecat si ce nu. Ce trebuie sau ce nu trebuie conectat pentru ca acest clinc sa se auda? Acest clinc nu s-a mai auzit imediat dupa ce am pornit amplificatorul, inainte cu cateva minute am ascultat o melodie la un volum mai ridicat pentru ca era prost inregistrata si am fost nevoit, timp in care PC-ul a intrat in standby, s-a auzit un zgomot puternic in boxe (sunt boxe mari si multe plus un subwoofer mare, puse 2 pe grupul A al amplificatorului si inca una si subwoofer-ul pe grupul B, cele 2 de pe grupul A au 16 Ohmi, iar cealalta si subwoofer-ul au cate 8 Ohmi, din cate stiu amplificatorul face paralelul si astfel iese o impedanta de 5,33 Ohmi care se incadreaza in 4-16 cat permite amplificatorul) - un pocnit puternic, dupa care am pornit amplificatorul si am observat ca nu se mai aude clincul, dar cred ca nu s-a auzit pana atunci nici un bazait ca o frecventa a retelei care s-a auzit din interiorul amplificatorului. In acelasi timp am observat ca una dintre grilele de ventilatie de pe exteriorul carcasei era putin obturata - sa i se fi tras de aici sau din cauza pocnitului puternic? Ce inseamna ca acel clinc nu s-a mai auzit? Este posibil ca amplificatorul sa fi fost protejat de acel pocnit puternic si / sau de acea posibila supraincalzire cauzata de obturarea partiala a uneia dintre grilele de ventilatie? Cumva sa nu se mai auda acel clinc din cauza ca releul de protectie la scurtcircuit sa se fi inchis? Ce rol are acel clinc? Este posibil ca amplificatorul sa se fi protejat cu vreo protectie si sa fie functional? Daca da, cum il fac sa functioneze din nou? Oricum, in orice caz, cum il fac sa functioneze din nou? Inainte ca acel clinc sa se auda, volumul trebuie sa fie la zero? Cu ceva timp in urma, mult timp s-a auzit un harscait / troscait / trosnit / crantanit (crackling - am vazut ca multi au avut aceasta problema la AM-U310, dar nu stiu cum se traduce) pe boxa din stanga a grupului B, cateodata chiar nu se mai auzea deloc si-si mai revenea singura, dar e intampla sa nu-si mai revina, sa aiba si asta de-a face?

@tygertyger8597 4 года назад

Great video. I have a similar problem (intermittent) with my Pioneer SX 1980. It was working, then both channels totally silent. After a few minutes tried it again and it worked for about a minute, then same problem. A few weeks later tried it again and it played at least an hour but could only get FM above 100 Mhz. Some kind of gremlin in this thing for sure. Also, some genius has taped two little magnets to one of the relays (protection or speaker I'm not sure). Both of these relays are on the PSB. I'm considering getting the re designed PSB for this thing from Canada just to upgrade it. Didn't mean to write a book so thanks for the video.

@vintageaudioaddict 4 года назад

Thank you very much for your kind words and for watching. Intermittent problems can be difficult to find. These units are getting pretty old now and I'm hearing about more issues that are popping up as time passes. The SX-1980 is a great receiver as you know. I'm sure that you will get her back going at 100%.

@alvalle1206 Год назад

I have a Marantz 2226b that has one channel out no buzz ,no distortion just nothing. The other channel plays fine . I'm guessing op transistors at this point . This video should help me since it's a similar unit . Thanks for the videos ,they are very informative .

@dirtydon8661 4 года назад

Good lesson. I realize the camera angles make it difficult on you. Thanks.

@vintageaudioaddict 4 года назад

Thanks

@jeffcooke9905 3 года назад

When you test with the multi meter do you just ground the black lead to the chassis of the receiver?

@SuperIceman1953 2 года назад

Good morning. Thank you for your videos. I have a question about where do you source capacitors and other parts.

@lewiskhan9825 3 года назад

your quite knowledgeable how long have u been doing electronic

@thomaskendall452 Год назад

Thanks for this great video! It got me to thinking. Of course, it only makes sense to prophylactically replace all the electrolytic capacitors in 40+ year old gear. But wouldn't it also make sense to do the same with solder joints?

@vintageaudioaddict Год назад

Your welcome and thanks for watching. Solder joints can fail over the year's but it's more on a case to case basis. Electrolytic capacitors are different. They are all going to fail at some point.

@nickkurck5222 Год назад

This tutorial is awesome, gives me info about my 2245 sound issue. I also have an Optonica SA-5201 that has a flickering power issue when turned on. Sometimes it goes away, sometimes not. The FM stations have static when the power is "flickering" Would you have a tutorial on that issue?

@ethanweed4203 4 года назад

So what if I do hear the “click” from the speakers when I turn it on but when I go to play anything, fm, am, tape, aux no sound comes out of the speakers not even static

@archstanton7163 3 года назад

Love your Videos, I'm a novice but I'm learning a lot! Question about testing, when you're probing with your multimeter is the receiver on? connected to mains voltage? Do you run it thru a variac & DBT? Thank you~ A

@vintageaudioaddict 3 года назад

Sometimes when troubleshooting you must have the equipment powered on. Use caution when working on this equipment. I have both a variac and DBT and use them when necessary.

@danraducan5336 Год назад

Hello! Sorry if my english is not good! Thank you from the bottom of my heart! I had AKAI AM-U310 stereo integrated amplifier from 1982 till few days ago. This amplifier means a lot for me. Before it died out it was connected to PC, I was listening music at a relatively high volume and my PC is setted to enter in standby after no commands is performed and HDD and monitor stopped. In that moment I've heard a big boom sound and no sound in speakers after I've exit in standby. I stopped the amplifier and turned on and the click start sound no longer appeared and no sound in speakers. Also sometimes I had sound only on right channel together with a crackling sound from speakers on left channel. All being said you think that STK / STK's is broken? I want to make this amplifier to work as good as it can be. I'm sort of audiophile person. Kind regards!

@mikeschmidt4902 2 месяца назад

Hi, I have a Marantz model 2245. I turn it on, the lights in front come on and I hear a click from the small component with a clear cover I am not sure what it's called. I picked the Receiver up from someone who had several components hooked up to this unit. I bought it home I removed the top cover and it was just loaded with dust. I blower the unit out but still was pretty dirty. I turned the Amplifier on the light in front came on and I heard click sound. I hooked speakers up to the unit and no sound coming from the unit at all. I also tried to plug a turntable into the back of the amplifier no power. I checked the fuse in the back of the amplifier it seems to be ok. Not sure what to do next. Can you give any suggestions?

@rogerdopp6848 4 года назад

I started with kits knight or hh scott .my kids started with switch or lightbulb old toaster(didn't make it)I now can say one of my kids does micro soldering.

@cat-lw6kq 4 года назад

I had this problem however don't some receivers have a AC relay ?

@matthaley8176 2 года назад

Love to watch your videos Would be great if you allowed us to see were you are probing and just say what the reading is. Mention to use cell phone to take pictures of a area so someone would see how to put back together.

@vintageaudioaddict 2 года назад

Thank you for the suggestions.

@dwoodog 4 года назад

I'm in for the long haul. No point buying this old stuff and you don't know how to fix it, especially the cheap 80's black plastic stuff. Pick up some amp or receiver for say $30, I'm not really wanting to spend $100+ bucks to get it running, but doing the work myself makes it fun, and you can keep those cheap little things rolling in the door. Ok, thanks for another great video.

@vintageaudioaddict 4 года назад

Thanks again for your comments and for watching.

@teekay_1 4 года назад

At 1:13 you never say which board you're testing? Is that the power supply with the relay?

@vintageaudioaddict 4 года назад

It's the P800 assembly, regulated power supply and protection relay.

@teekay_1 4 года назад

@@vintageaudioaddict Thanks for the speedy reply. Much appreciated.

@sagethomas112 2 года назад

zero dislikes on the intro lol

@todddenio3200 3 года назад

My 2245 does still have sound but it's been reduced by about 75% to 80%. Let me explain.. I got a new entertainment center so my stereo was unhooked for transferring it. My helper decided he was going to hook it up even after I told him not to touch the connections but to just put the unit on its shelf. I went to the bathroom and just as I got back to the living room I heard a very loud POP from my speakers. He had hooked it up anyway but had it and the CD player powered up when he reconnected the RCA cords. It still works (and now only on mono) but it's won't get louder than what a normal conversation would be. Any ideas on what he wrecked? Side note I'm disabled and he was my PCA - "Personal Care Assistant" and was only supposed to do the lifting but not the connecting of the system.

@vintageaudioaddict 3 года назад

I'm sorry about your 2245. It's very difficult to say what may of happened. As you know you should have the power off before hooking up individual components. I'd google "vintage audio repair" and see if there is someone locally that could take a look at your 2245. It is also certainly possible that your speakers were damaged. If you have another piece of equipment that you could hook up to your speakers to check them that would be a good idea.

@todddenio3200 3 года назад

@@vintageaudioaddict Unfortunately there is not anyone within 100 miles of here who does repair work on vintage electronics and the nearest one after that one is about 250 miles. The only other equipment I have here is a boom box and I dont think it would power the bigger speakers. Granted they are only vintage Utahs but surprisingly they sounded great. My Marantz Imperial 7s are in storage and I cant get them until spring because the storage facility doesnt keep the area well plowed out so theres too much snow in the way. I fired that PCA for multiple reasons

@cardtrix1970 2 года назад

Not sure this guy totally knows what he's doing...

@hadibq 2 года назад

👍TY

@vintageaudioaddict 2 года назад

Thank you for watching!

@minalyn2 5 месяцев назад

I have a 2245 I was playing a record when I heard a loud pop .Now I have no sound

@dannywilliams3516 4 года назад

Awesome video truly enjoyed it felt like I learned something. This seems to be such a common problem with so many vintage receivers. Two of my seven receivers have recently had the same type of issues.

@solovids1 4 года назад

A couple of things - I saw where you had your red probe checking for the DC bias differential, but I'm not sure where you had the black probe - was it chassis ground? Also, if you'd care to comment, I got a "junked" Pioneer SX 626 and built a dim bulb tester to see if it had a big problem before I went further. I attached 8 ohm loads and turned it on. The Dim bulb flashes bright every second or so. Is that a shorting capacitor? Is there something that you can tell me to check? Just found your channel and subscribed today, I find your approach to be useful for someone like myself who is just getting into this and wants to stay safe and have fun.

@vintageaudioaddict 4 года назад

Yes, the other probe was to ground. Good job building a DBT. It's always a good idea to power unknown electronics with one. It appears something is drawing excess current but usually when that is the case the bulb will burn bright and stay bright. Are you using a 60 watt bulb? If your using something higher try that. I had a Yamaha amplifier years ago that did something similar and I was using a 100 watt bulb. Not saying that's your issue but it gives you something to try. If that's not it it's almost got to be power supply or output transistor related but with your issue where it appears you have a current surge and then it relaxes it's hard to say. Usually if it's a blown output transistor the current draw doesn't come and go. A shorted rectifier in the power supply the same. I'm glad that you feel that my video's can help you out and thanks for subscribing. Mostly what you will find is experience is the key. Some of this stuff can be difficult but once you get into it you will see a lot of it is not that tough.

@tutrong9182 2 года назад

I have a Sony TA-F60 with the right channel issue : the voltage at the C of Q213 and Q214 is always -8,0V, so the protection relay do not work. I turn the RT201 to maximum but it can not reach 0V. All orther voltages are ok. Could you please advice me some solutions? Sorry for my bad English Thank you in advance. TuTrong from Viet Nam. I have the service manual of TA-F60. If you need I will send you via email.

@dnutz7653 3 года назад

I need a 3237 tutorial

@Andrewatnanz 4 года назад

I have a question. My Marantz 2235B makes a loud popping sound in the speakers when I turn it off. It is completely original. Do you think it might be a capacitor in the output stage? or is it normal? This is the first Marantz ive had and I don't know anyone else with one to compare with. Thanks for the video, it was very informative.

@vintageaudioaddict 4 года назад

Your welcome I'm glad that it was helpful to you. Your 2235 should be silent when you power down because the speaker relay should disengage. You could have some excessive DC Voltage on one of your speaker outputs causing the pop. I did a video on how to check the DC Offset without taking off your case ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-ZvBoxhpa-v8.html if you have a digital volt meter. If you are able to check that and it looks fine then it could be the speaker relay itself or something on the protection board. If the DC Offet looks high then it's probably a amplifier issue. It could even be your power switch arching. There are many different possibilities and yes old capacitors are the number 1 cause of vintage audio failure. I hope this helps you out. Good luck with 2235 and thanks for watching.

@Andrewatnanz 4 года назад

@@vintageaudioaddict The DC offset is good however I noticed the relay does not make any sounds so I will look into that next. Are the two large capacitors usually the first to go? Thank you very much.

@vintageaudioaddict 4 года назад

@@Andrewatnanz Your welcome. I wouldn't say any particular capacitor is more likely to fail then any other. Really all of the capacitors as old as your 2235 has are suspect. Good job noticing the relay and good luck tracking down the problem.

@bryanfarmer8685 4 года назад

Funny just happens I was given a 2245 for free. Its number 3 on my bench to get working.

@vintageaudioaddict 4 года назад

Well, that's a nice gift. Good luck with your 2245.

@roundcornerent 3 года назад

It's too bad you don"t show the repair .Plus you didn't really explain why if u have a bad solider connection that it would cause 36v and not 0v

@bblackdogg4352 3 года назад

Yea, it's pretty mysterious how the 37v power rail could make its way to the audio out at any of the h001 thru h004 outputs by way of an open solder connection. In fact..it can't. Only a shorted transistor e to c or a shorted resistor or cap(never seen that) would send power rail DC to the output audio path. I guess that's why the repair wasn't shown.

@bblackdogg4352 3 года назад

Maybe possible that a transistor load resistor lost its path to ground and sent rail to the base of one of the final output transistors - then on to the audio out and picked up by speaker protect ckt.