Sony Betacam BVW35 vs. Betamax SL-2000 (SL-F1) portable recorders... Magic smoke escape.

[@HelmutLenzen-c5u]

The Transistor is a 2SC3692. I have looked in my BSW35

[@video99couk]

A big thank you for taking the time to do that. It's quite high current and voltage. I may have found a supplier.

[@HelmutLenzen-c5u]

@@video99couk No problem, I also bought a BSW35 six months ago, only the belt fell off the capstan. I collect old machines like this myself and they all have mistakes.

[@KylesDigitalLab]

@@HelmutLenzen-c5u Beat me to it!

[@richjames2540]

Save it. Rare items should always be saved for posterity. Keep up the good work.

[@cttv90108]

I remember taking one of the bvw 35 on a job to record President Bush in Anaheim. The camera operator handed me audio and video cables and the recording came out great.

[@SurnaturalM]

Beta / Betamax was always superior to VHS. And I won't even talk about U-Matic... Hot > Stinky > Capacitor. They smell almost as bad as those germanium diodes when they gave up. You probably can replace the transistor with a mje150XX serie. Obviously you should repair the device. I'm also an electronic technician. I started 40 years ago and worked for an authorised Mcintosh dealer 30 years. I now restore/rebuild/repair all kind of audio/transmitter/sound effect processor for collectors. I don't do much video equipment. So this was super interesting. Thank you. It's the first video from you I watch. You have a calm voice.

[@MrStevenAlpert]

BVW-35 Does not have a *built in* time base corrector, but when you engage the mode, it is looking for reference video, to essentially act as advanced sync and subcarrier for an external TBC.

[@Thebrainymonkey]

I remember using the BVW-35 on shoots back in the early '90s. Linked to an Ikegami camera with an umbilical and run off PAG batteries via the multi-pin like an external PSU. The only drawback was having to follow around the cameraman lugging all the stuff.

[@SheardTV1]

Ahh the NP1 battery. Used to power many a monitor in the field when I used to do kids dramas as a trainee in the 90’s. It was considered a thin and lightweight option at the time.

[@WolfmanDude]

I am not a fan of beta but this machine is REALLY nice! Its 100% worth saving. I love all those switches and BNC ports

[@richardbrobeck2384]

Great video Electrolytic capacitors are killing a lot of old tv and audio gear and computers !

[@KylesDigitalLab]

I have both an SL-2000 and a BVW-35. Both work great. They also made a Digital Betacam portable, the DVW-250, which can actually take the large size DigiBeta cassettes. I managed to get one for $50 + $70 shipping from Japan. They're pretty rare as I don't think many broadcasters bought them as opposed to the DVW-700 and DVW-790 camcorders. However mine was sold as completely dead and it hasn't arrived yet so I'm hoping it's not full of leaky SMD capacitors.

[@HelmutLenzen-c5u]

If your machine was built after 2000, there should be limits to the capacitors. I usually replace the electrolytic capacitors with ceramic capacitors of the same size. I've never had any problems with them and they last longer. I have a pansonic aj-d750 and all the capacitors were defective. 3 days of soldering work and then the machine ran again.

[@KylesDigitalLab]

@@HelmutLenzen-c5u Mine was probably built around 1995 or so.

[@HelmutLenzen-c5u]

@@KylesDigitalLab not good, then the capacitors are probably defective

[@TheFlaneur-up1ft]

Had the BVW35 and the 50 back in the day. Weigh a blinking ton and very heavy on batteries. From memory I think the batteries were NP90? I’m probably wrong on that as it is a few decades ago.

[@stu71disco]

Ha 😅 back in the day I remember having a BVW 35 and SQN 4 and boom pole with a 416 mic plus extra batteries all hanging round my neck and having to run back and fourth following the camera guy filming kids playing football. I’d probably collapse just doing the running bit these days let alone carrying all that weight 😂

[@CaptainJack406]

They are all worth saving! Re transistor - can you check the input voltage to it and components in the path after it, such as caps and their voltage ratings, unless it's in the service manual. May give you an idea of what transistor specs to hunt for.

[@crashbandicoot4everr]

It's interesting that the transistor in the DC-DC converter popped like that with magic smoke. At least on the SL-C9 it just dies and leaves you with no display LOL. The C9 will also behave eratically if you try to operate it with the DC-DC converter removed. The power button will act funny and the realy will click 10 times a second. I know because I tried haha.

[@snap_oversteer]

I have similar model, the BVW-50P, which can accept both tape sizes and is even more densely packed inside. After getting the mechanism working again it also started smelling like fish. And it has completely broken video output, LCD can't sync on it and CRT shows barely anything, but oddly enough it has no problems with recording. With so many caps inside I don't think I'll ever attempt to fix it. And I've now checked my photos from when I was disassembling it, doesn't seem to have the same DC-DC module so I can't help you with that sadly.

[@richjames2540]

Looking forward to you fixing this for posterity. I was wondering what pro camera and mike you would test it with.

[@video99couk]

That could be tricky because I don't have much NTSC kit.

[@tekvax01]

Betamax is an NTSC colour under composite record format, while Betacam non-SP is a component video recording standard. But I'm sure you knew that. I recall with the BVV5 betacam decks on the ENG/EFP cameras required a playback adapter (component to composite encoder) to view the playback from the deck. That betacam deck may only play colour output with a playback adapter. Or as you say the TBC may have a fault. I guess I should continue watching the video to the end to find out. Also, while you can use the betacam tapes in a betamax, Sony discouraged the use of betamax tape in the betacam; as they were a different tape formulation, and couldn't stand up to the stress of the betacam record format.

[@video99couk]

I was unaware that they are a different formulation. I've even seen one Beta tape which was marked both Betacam and domestic Beta (I wish I had kept that one).

[@zburic]

Hi, I have a Betacam Sony BVW-21P, but I don't have a power supply for it. If you can help a little, tell me which power supply goes for it or which one I could use as a replacement for the original.

[@Capturing-Memories]

Wouldn't be better to use a digibeta machine to convert analog Betacam tapes? or component sometimes can be better?

[@video99couk]

Yes, much better to do it that way, and I generally do so.

[@ScottGravlee]

A waveform monitor would have help diagnose wether your TBC was working.

[@livinlifetothefullest2750]

Oh boy Sony and DC-DC Beta woes

[@video99couk]

Just like a Sony Betamax SL-C9.

[@livinlifetothefullest2750]

@video99couk I was tempted to ask if there were any similarities

[@crashbandicoot4everr]

@@video99couk Yeah the good old C9. I very recently repaired the DC-DC converter on mine. What a pain in the butt that was, and it was a MK2 variant too!

[@frankowalker4662]

Nice, guide alignment tapes.

[@video99couk]

And well done for watching to the very end.

[@frankowalker4662]

@@video99couk I always enjoy the little extras at the end of your vids. 👍

[@IainDavies-z2l]

The colour problem was "Hanover Blinds" the Croma frequency not being correct.

[@video99couk]

I thought that effect was a bit more subtle than this.

[@IainDavies-z2l]

I had a Panasonic tv and when the Croma crystal warmed up it went off frequency with that effect. You can read about it in the book "PAL Receiver Servicing" by King.

[@zhaohaigaogu7821]

小さなシールド内部の電解コンデンサーと映像回路のオレンジ色のタンタルコンデンサーが不良でした。自然環境による故障だと思います。

[@ingenfestbrems]

Off topic, but do you sell or refurbish Panasonic G mechanics?

[@video99couk]

No, I can't take on repairs, I have a backlog of my own equipment to work on. I'm also much more familiar with the K mechanism than the more complicated G.

[@tremorist]

If Sony and Uher had a child...

[@northernplacecorporation]

Hmm... the picture jumps up and down on the TV due to different frame-rates. The tape is NTSC, but because the person is British, and is PAL-based, all of his videos have been shot, edited and rendered in 25.00 FPS. And I think I know exactly why! The tape is in 29.97i, but the vid he edited, isn't in this frame-rate.

[@northernplacecorporation]

@Matt_Quinn-Personal_Account Oh... I see that.

[@video99couk]

All my videos are 25fps and indeed the TV was displaying NTSC, so it will appear to flicker on camera.

[@northernplacecorporation]

@@video99couk And by 25fps, we mean that your vids have been shot, edited and rendered using it to match the refresh rate PAL uses. I live in a PAL country, and some of the things I make, mainly for Aizan Ramos, have been in 50fps.

[@barrieshepherd7694]

All those real inputs and outputs, knobs and meters - pure tech porn 🤣🤣🤣🤣🤣🤣

[@bob-s-bit-s]

hi have the same model note the video head is bad have not checked the deck yet like you i have alot on yes there are alot of better models i use them very like you i am still getting alot of offers on parts decks parts will turn up easy there's alot of new sealed betacam tapes still out there and alot A500P sony still working

[@cfldriven]

While t