TV Forums

Free Games Games Forums Music Forums TV Forums

  Main Index FORUM
HOME
Search Posts SEARCH
POSTS
Who's Online WHO'S
ONLINE
Log in LOG
IN
Rules & FAQ RULES
F.A.Q.

Crumbtrail TV Forums: TV Equipment: VCR Repair Forum:
Panasonic NV-FS200 picture fault

 

 


Willow5
New User

Oct 16, 2016, 10:48 AM

Post #1 of 22 (1033 views)
Shortcut
Panasonic NV-FS200 picture fault Can't Post

I am new to this forum and wonder if you could kindly help me troubleshoot an issue I am having. I am getting streaks appearing on screen which seem to mostly disappear when the machine is at operating temperature. It is like the picture "shivers" when cold. I can send some pictures of the fault of it helps? A friend of mine mentioned that it looks like a tbc fault but not sure where in the tbc could be the problem. I have some pictures of the fault but not sure where I can upload. Thanks for any advice



jts1957
Veteran


Oct 16, 2016, 1:49 PM

Post #2 of 22 (1029 views)
Shortcut
Re: [Willow5] Panasonic NV-FS200 picture fault [In reply to] Can't Post

Your friend has been drinking too much Two Buck Chuck.
You could use the Search function to find posts about posting pictures. It's not that you are the first to ask.


-------------------------
Location: Far, Far Away

(This post was edited by jts1957 on Oct 16, 2016, 1:51 PM)


Willow5
New User

Oct 16, 2016, 2:07 PM

Post #3 of 22 (1022 views)
Shortcut
Re: [jts1957] Panasonic NV-FS200 picture fault [In reply to] Can't Post

Thanks :) does this link work https://imageshack.com/i/plo9Pdvrj


jts1957
Veteran


Oct 16, 2016, 2:39 PM

Post #4 of 22 (1012 views)
Shortcut
Re: [Willow5] Panasonic NV-FS200 picture fault [In reply to] Can't Post

Possibly Capstan motor bearings? Any noise or vibration?


-------------------------
Location: Far, Far Away


Willow5
New User

Oct 16, 2016, 2:42 PM

Post #5 of 22 (1010 views)
Shortcut
Re: [jts1957] Panasonic NV-FS200 picture fault [In reply to] Can't Post

You think the problem is mechanical? It is particularly bad on dark images if that helps. I cannot hear any noise or vibrations - is there any easy way of testing ?


jts1957
Veteran


Oct 16, 2016, 3:08 PM

Post #6 of 22 (1004 views)
Shortcut
Re: [Willow5] Panasonic NV-FS200 picture fault [In reply to] Can't Post

A light application of your fingertip on various parts should detect vibrations.

Apply a drop at a time Freeze Spray, to bearing, top and bottom of motor, when unit is warm and exhibiting minimal symptom.


-------------------------
Location: Far, Far Away

(This post was edited by jts1957 on Oct 16, 2016, 3:12 PM)


Willow5
New User

Oct 16, 2016, 3:14 PM

Post #7 of 22 (1001 views)
Shortcut
Re: [jts1957] Panasonic NV-FS200 picture fault [In reply to] Can't Post

Thanks, where should I apply the freeze spray? On the mechanical parts or electrical components? Will try the fingertip test but should I place my fingertip on the drum while it is spinning?


jts1957
Veteran


Oct 16, 2016, 3:19 PM

Post #8 of 22 (1000 views)
Shortcut
Re: [Willow5] Panasonic NV-FS200 picture fault [In reply to] Can't Post

The drum is the cylinder motor. The Capstan motor allows tape to run at a constant precise speed as pinch (pressure) roller presses tape to shaft.


-------------------------
Location: Far, Far Away


Willow5
New User

Oct 16, 2016, 3:24 PM

Post #9 of 22 (998 views)
Shortcut
Re: [jts1957] Panasonic NV-FS200 picture fault [In reply to] Can't Post

Okay understood thanks. Where can I place my fingertip on the cylinder i.e. where is a safe place to put my fingertip? Also where should I spray the freeze spray?


jts1957
Veteran


Oct 16, 2016, 3:41 PM

Post #10 of 22 (997 views)
Shortcut
Re: [Willow5] Panasonic NV-FS200 picture fault [In reply to] Can't Post

Not necessary to touch cylinder.

Quote
Also where should I spray the freeze spray?

http://imgur.com/a/usFTM

Brass area - top & bottom


-------------------------
Location: Far, Far Away

(This post was edited by jts1957 on Oct 16, 2016, 4:28 PM)


Willow5
New User

Oct 16, 2016, 4:09 PM

Post #11 of 22 (992 views)
Shortcut
Re: [jts1957] Panasonic NV-FS200 picture fault [In reply to] Can't Post

Thanks - could I simply lube up the shaft/bearings and see if the problem disappears? Also why does this problem disappear with temperature? Are you 100% certain this is not electrical?


jts1957
Veteran


Oct 16, 2016, 4:27 PM

Post #12 of 22 (991 views)
Shortcut
Re: [Willow5] Panasonic NV-FS200 picture fault [In reply to] Can't Post

Is symptom present in play with tape 'paused'?

Might be the reason #43 in pix are called oil seals.


-------------------------
Location: Far, Far Away


Willow5
New User

Oct 16, 2016, 5:00 PM

Post #13 of 22 (988 views)
Shortcut
Re: [jts1957] Panasonic NV-FS200 picture fault [In reply to] Can't Post

Good question, will check and report back on the pause question...how do you lubricate these seals?


jts1957
Veteran


Oct 16, 2016, 5:54 PM

Post #14 of 22 (981 views)
Shortcut
Re: [Willow5] Panasonic NV-FS200 picture fault [In reply to] Can't Post

Assuming you do not want to remove whole motor assembly and disassemble ... Move top (bottom) oil seal down (up) capstan shaft until they nearly meet in the middle.
Turn whole unit over and apply a half drop of light machine oil to the top bearing. Push closest oil seal back into recess. Turn whole unit right side up and apply a half drop of light machine oil to the bottom bearing. Push the remaining oil seal down into recess.


-------------------------
Location: Far, Far Away


Willow5
New User

Oct 16, 2016, 6:43 PM

Post #15 of 22 (978 views)
Shortcut
Re: [jts1957] Panasonic NV-FS200 picture fault [In reply to] Can't Post

Interesting thanks for clarifying. Just one question how do I get to the oil seals to bring the up and down respectively? Can I pull them out with a small flat screwdriver?


jts1957
Veteran


Oct 16, 2016, 6:54 PM

Post #16 of 22 (975 views)
Shortcut
Re: [Willow5] Panasonic NV-FS200 picture fault [In reply to] Can't Post

http://imgur.com/a/mgZG7

By grabbing #133 and pulling away from chassis (with or without loosening/removing the bracket that partially blocks) it should allow enough slack to be able to grab them with a small screwdriver.


-------------------------
Location: Far, Far Away


Willow5
New User

Oct 16, 2016, 7:17 PM

Post #17 of 22 (973 views)
Shortcut
Re: [jts1957] Panasonic NV-FS200 picture fault [In reply to] Can't Post

Thank you sir - just out of interest if these need lubricating will it display these symptoms ? Will give it a go and report back - can I use 3 in 1 oil for this?


jts1957
Veteran


Oct 16, 2016, 9:04 PM

Post #18 of 22 (967 views)
Shortcut
Re: [Willow5] Panasonic NV-FS200 picture fault [In reply to] Can't Post

You never answered whether it shows symptom with tape playing then paused. Irregardless of which oil is used,

I've always considered re-oiling a limited term fix.


-------------------------
Location: Far, Far Away


Willow5
New User

Oct 16, 2016, 10:42 PM

Post #19 of 22 (965 views)
Shortcut
Re: [jts1957] Panasonic NV-FS200 picture fault [In reply to] Can't Post

Sorry for the delay - I have just done a test and symptoms are still there in pause...will upload picture shortly. Does this mean that the capstan shaft beatings are not the cause?


jts1957
Veteran


Oct 16, 2016, 10:53 PM

Post #20 of 22 (963 views)
Shortcut
Re: [Willow5] Panasonic NV-FS200 picture fault [In reply to] Can't Post

Possibly. If nothing else, you will have eliminated one possibility.

Can I presume symptom is NOT demonstrated via Tuner or Ext. Input(s)?


-------------------------
Location: Far, Far Away


Willow5
New User

Oct 16, 2016, 11:33 PM

Post #21 of 22 (961 views)
Shortcut
Re: [jts1957] Panasonic NV-FS200 picture fault [In reply to] Can't Post

I cannot confirm the second point about tuner or external inputs as I have no external source to connect to - will try to get a source tomorrow and confirm. Thanks for your help so far


rrobor
Veteran

Nov 14, 2016, 10:49 AM

Post #22 of 22 (449 views)
Shortcut
Re: [Willow5] Panasonic NV-FS200 picture fault [In reply to] Can't Post

Did you check the supply capacitors, sounds like she is running rough. The bearings you should be able to feel if they are gone by turning things by hand. Oiling them may work for the moment as said but its very short term. To fix them I used to take them out boil them in detergent and water to get the gunge out of them, then heat them to be quite hot and drop then in oil. That did work well on some. Others you found were worn slightly oval so beyond help.

 
 
 


Search for (options) Web Design by Web Ideas - Page loaded in: 0.20 s on (CGI/1.1)