Quantcast JVC 9911U maintenance? - digitalFAQ Forum
  #1  
01-15-2020, 03:19 AM
swiego swiego is offline
Free Member
 
Join Date: Feb 2018
Posts: 12
Thanked 0 Times in 0 Posts
Got a JVC 9911U (original owner) and I’m happy to say it’s held up with roughly 1 tape/month use despite having the build quality of a tin can. Is there anyone out there who has maintained this final JVC? Or, a lead on a service manual & schematics? I’d like to give it a once over or send it to someone who understands the latter most JVCs, to verify it is at spec and perhaps breathe a few more years of life into it.
Reply With Quote
Someday, 12:01 PM
admin's Avatar
Ads / Sponsors
 
Join Date: ∞
Posts: 42
Thanks: ∞
Thanked 42 Times in 42 Posts
  #2  
01-15-2020, 04:00 AM
lordsmurf's Avatar
lordsmurf lordsmurf is online now
Site Staff | Video
 
Join Date: Dec 2002
Posts: 11,759
Thanked 2,147 Times in 1,848 Posts
Main issues are alignment, head cleaning, chassis cleaning, lube.

Funny enough, it's not much different from a car engine. And like a car, you can easily screw up an expensive item with the wrong methods and items.

1. Clean the heads ONLY as needed, not as preventative maintenance. Heads are delicate. (Some people use Q-tips, and it's analogous to cleaning your own intimate/private anatomical parts with sandpaper and a steel brush. Obviously that's bad!)

2. Gravity makes units go out of alignment over time, and it can be affected by head condition as well. This drift must be gently calibrated. The best alignment is done with scopes, but you can eyeball it with experience (which I have).

3. Lube can be badly done, and with the wrong items. I've read stories of morons ruining their decks with WD40. Silicon grease, etc, as needed. Again, not normal maintenance, only done when problems present.

4. Body cleaning is preventative, using soft brushes and canned air, to prevent dust/grime from affecting lube and heads. Just be careful with canned air, you don't want spew.

I thought the service manual for the 9911 was in this forum? If not, for your needs, almost any JVC service manual will do, though obviously get as close as possible (9900, SR-V101, etc).

I actually have a 9911 parts deck, if needed -- but noting it's a part decks because some parts failed/broke.

Deck maintenance can be DIY, but you must be careful. And on your very first clean job, mistakes are common. So if you insist on a DIY, never start with your best deck. Preferably even with a deck that doesn't matter at all (ie a $9 Goodwill VCR).

I could always grade your deck.

- Did my advice help you? Then become a Premium Member and support this site.
- For sale in the marketplace: TBCs, workflows, capture cards, VCRs
Reply With Quote
Reply




Similar Threads
Thread Thread Starter Forum Replies Last Post
Mitsubishi HS-HD2000U maintenance? homefire Capture, Record, Transfer 8 05-13-2019 05:46 PM
Maintenance Related Question JVC-Fan Video Hardware Repair 1 10-20-2018 06:56 PM
JVC S-VHS VCR: HR-S9500U vs. 9911U vs. DVS3U? leeoverstreet Project Planning, Workflows 3 04-11-2018 01:18 AM
Forum maintenance 1/31 admin General Discussion 0 01-31-2017 10:04 PM
Planned maintenance for 9/4 admin General Discussion 0 09-03-2013 09:22 PM

Thread Tools



 
All times are GMT -5. The time now is 07:14 PM