Blaupunkt CR2000S powers up, then shuts off?

[davrtes]

Hi all!

I recently acquired a Blaupunkt CR2000S S-VHS camcorder (which appears to be a rebadge of the Panasonic NV-M5 chassis). I’m trying to bring it back to life, but I’m running into several overlapping issues. I have the service manual here, but as I am not an expert in vintage video repair, I could use some guidance.

Current Symptoms & Troubleshooting Steps:
High Current Draw & Resets: Initially, the camera would reset constantly upon power-up, drawing high current. I heard a motor "straining" as if it were stalled. I began disconnecting boards to find the source of the draw. When I disconnect the ribbon cable going to the CCD/Lens block, the camera finally stays powered on with a "normal" current consumption. It seems there is a short or a major failure in the CCD section, which I’ve put aside for now to focus on the mechanics.
Mechanical/Loading Issues: I managed to get the cassette carriage to eject and load a few times, but eventually, it jammed because a gear slipped out of its seat. While troubleshooting the jam, I noticed the Loading Motor Driver IC was getting extremely hot.
I have since reseated the gear, and the loading mechanism seems to complete its basic movement, but it never fully enters "Ready" or "Play" mode.
Currently, after loading a tape, the camera attempts to read it, but the procedure doesn't finish. After a few seconds, the loading motor tries to engage again (likely trying to complete the cycle), stalls, and the Driver IC starts overheating again.
The Power LEDs stay on, and the Electronic Viewfinder (EVF) powers up, but there is no image (just a brief flash of what looks like OSD text for a fraction of a second).

To make the symptoms clearer, I have recorded a short video showing the power-up sequence, the motor behavior, and the point where it seems to stall: https://youtu.be/IsskMA77jdY

Questions for the experts:
Given the era (late 80s/early 90s), should I suspect something causing the logic to not know where the mechanism is?
Are there common failure points on this Panasonic-based chassis that would cause the loading motor to "over-run" or stall after the tape is already in?

Any advice on the correct "timing" or mechanical sequence for this deck would be greatly appreciated.

Thanks in advance!

[radiokom]

For what purpose you are trying to bring it back to life? It can be used as interior piece of design, but you do not need working camera for that. It is useless today anyway, do not waste your time.

[davrtes]

Quote:

Originally Posted by radiokom

For what purpose you are trying to bring it back to life? It can be used as interior piece of design, but you do not need working camera for that. It is useless today anyway, do not waste your time.

First, I’m a filmmaker and I want to incorporate authentic, native analog footage into my modern digital projects. Second, I have a library of old family tapes that I need to digitize, and this unit’s S-Video output is the best tool for the job. Finally, I’m a firm believer in the right to repair, and I enjoy the challenge of fixing vintage tech rather than letting it end up in a landfill.

Anyway, I’m fairly certain the issue is mechanical gear timing rather than the mode switch. Comparing my unit to teardown photos and online references, the supply loading posts are clearly out of alignment. This misalignment is likely causing the motor to hit a hard stop and stall, which explains the overheating driver IC.

[Aya_Rei]

I feel like if you wanted to digitize old (S)VHS-C tapes, it'd be best to use a JVC branded adapter and a suggested refurbished VCR model that is known to play them correctly (ie not eat them)

If you want to record modern footage onto analog tape, you could also get a Sony 8mm/Hi8 camcorder. Those are easier to get working units of off of Ebay if you go for trustworthy listings (ie they come with a carrier bag, cables, charger, manual, etc)

But if you really want to try and repair this camera that may or may not lead to a successful outcome then you do you.

[davrtes]

Quote:

Originally Posted by Aya_Rei

I feel like if you wanted to digitize old (S)VHS-C tapes, it'd be best to use a JVC branded adapter and a suggested refurbished VCR model that is known to play them correctly (ie not eat them)

If you want to record modern footage onto analog tape, you could also get a Sony 8mm/Hi8 camcorder. Those are easier to get working units of off of Ebay if you go for trustworthy listings (ie they come with a carrier bag, cables, charger, manual, etc)

But if you really want to try and repair this camera that may or may not lead to a successful outcome then you do you.

Thanks for the advice! I actually already own a Sony, but I specifically chose this Blaupunkt because Sony’s quality is almost too good for what I need. I’m looking for that specific, gritty, noisy S-VHS aesthetic that 8mm or Hi8 just can't replicate.

As for the repair, I genuinely enjoy the process of fixing things. Even if this ends in an unsuccessful outcome, I’m perfectly fine with that...it’ll still be a beautiful piece of vintage equipment to have in my studio. For me, the attempt is half the fun!

[radiokom]

Quote:

Originally Posted by davrtes

I’m looking for that specific, gritty, noisy S-VHS aesthetic that 8mm or Hi8 just can't replicate.

What do you mean by it? Virtually 8mm is compact VHS and Hi8 compact SVHS. 8mm and Hi8 does not provide higher quality. There is no "gritty, noisy S-VHS aesthetic" there are bad records and bad equipment.

[davrtes]

Quote:

Originally Posted by radiokom

What do you mean by it? Virtually 8mm is compact VHS and Hi8 compact SVHS. 8mm and Hi8 does not provide higher quality. There is no "gritty, noisy S-VHS aesthetic" there are bad records and bad equipment.

I understand your point from a technical standpoint, but for my work as a filmmaker, "bad" records and "bad" equipment are exactly what I'm looking for. I’m not chasing high-fidelity or technical perfection.

Now, back to the repair: since the loading posts are physically out of position, I’m going to focus on the mechanical timing. Do you have any ideas on how to fix the timing?

[davrtes]

I checked the service manual and also looked at reports from other users with similar cameras. From that I figured the overheating problem was likely caused by the film loading mechanism being out of sync. After spending a few hours disassembling and reassembling the gears, I think I managed to fix that issue.

Now the camera powers on (sometimes only for a fraction of a second), moves the loading gears and the head mechanism. The viewfinder lights up, but I don’t see any image. After a few seconds it shuts off again.

I made a short video to show the problem: https://youtu.be/-F8xbP6Tdoc

Given the somewhat erratic behavior, I’m wondering if it could be bad capacitors or maybe a shorted resistor somewhere. What do you think? Any suggestions are welcome!