JVC GR - DVL300

E04 Unit in safeguard mode : Remove and Reattach Battery

I have had this same problem since my warranty ran out on my JVC DV camcorder. When I turn it on to record or play, a code appears on the display screen "E04 Remove and reattach battery. Unit in safegaurd mode." I have tried to remove the battery and replace it and I have the head cleaned. Twice I have brought it in for repairs but over time the same thing comes up. Can any one tell me what causes this and how to rectify it.

Reply

• Re: JVC GR - DVL300
  Jack
  - 3rd Oct 2006 5:45
  I accidently submerged my Gr-DVL300 last week, and now have no response to attaching the battery. Should I throw the camera out or are there some options I have for opening it and trying to see what may be damaged? Thanks. - Jack.
  
  
• Re: JVC GR - DVL300 dave - 28th Oct 2006 5:06
  i had this same problem - tech guys looked at it and couldnt work it out. so i looked into the tape mechanism and what did i see ??? the flimsy little tape guide at the back of the tape cradle(the one on the top at the back) was bent a little. When this is bent down a little it stops the head from rotating properly. bent it back and it went straight away. look in the unit yourself and see if it is all straight !
  dave
  
  
• Re: JVC GR - DVL300 Chris - 30th Oct 2006 2:36
  My JVC is saying the same thing now. CONDENSATION, OPERATION PAUSED
  
  just sent it in for the lens cover error and now this!
  
  Have you figured out what to do?
  
  Chris
  
  
• Re: JVC GR - DVL300 Bruce - 5th Nov 2006 5:09
  Hey guys, thought that I was the only one with the coded denial. Anyhow did all the reading I could, I tried something very simple, I do have the cheaper tape, so what I did was take it out of the unit, play with the little pin on the tape by opening/closing it, that worked. Then I gradualy placed the tape back in its dock and left the tapes gaurd open as long and as wide as I could. Seen to solve the same error message, and just think I have been messing with this thing for days, glad I didnt take the screwdriver to it. So good luck, I honestly think it is the tape and not the recorder, something is preventing the tape gaurd from opening?????????????????
  
  
• Re: JVC GR - DVL300
  Bill
  - 8th Nov 2006 0:38
  I looked a another model JVC camcorder with the same error and the video head was not turning freely. I gave it a turn to free it up and no more error message after that.
  
  
  • Re[2]: JVC GR - DVL300
    Bill
    - 8th Nov 2006 0:47
    I should add that the error message I was getting was the "EO4 remove and reattach battery message" Hope that helps someone out there.
    
    
    • Re[3]: JVC GR - DVL300 shane swale - 28th Aug 2007 22:07
      Hi Thanks Bill - Ive been trying to fix my (gr-d20ek) E04 message for the last few days. I noticed that the head was tight - gave it a push with a screwdriver and hey presto - it works fine. Thanks again I was about to give up. I have got 2 gr-dvl57e s which have both given up - no power at all. Any ideas on that one. Thanks Shane
      
      
• Re: JVC GR - DVL300 andy Mc Donagh - 10th Nov 2006 22:03
  did you ever solve your e04 problem on your jvc camcorder.. i am having the same problem.
  
  
• Re: JVC DV3000
  mitra
  - 13th Nov 2006 5:51
  have had this same problem since my warranty ran out on my JVC DV camcorder. When I turn it on to record or play, a code appears on the display screen "E04 Remove and reattach battery. Unit in safegaurd mode." I have tried to remove the battery and replace it and I have the head cleaned. Twice I have brought it in for repairs but over time the same thing comes up. Can any one tell me what causes this and how to rectify it.
  
  
• Re: JVC GR - DVL300 steve - 17th Dec 2006 3:01
  i have a jvc video camera gr-axm230 that only works when it is plugged in it does not work with the battery i tried a new battery and still the same problem
  
  
• Re: JVC GR - D200-S
  Peter Ian Ramos
  - 18th Dec 2006 11:55
  Dear sir / Madam,
  
  
  I would like to inquire about the message that appears in my Victor Digital Video Camera model: GR-200-S, what does E04 means?
  
  Thanks in advance and more power to your company.
  
  
• Re: JVC GR - DVL300 spyfox - 20th Dec 2006 22:57
  THE PROBLEMS
  
  When the little motor that pulls the videotape through the camera detects that the tape is not moving at the right speed, you get the SAFEGUARD MODE error. The principle here is that the camcorder detects a problem and shuts down in order to avoid doing additional damage to the unit. This is a legitimate way of protecting itself.
  
  The problem is that there are many reasons why the unit might not be able to move the tape, and obviously the question is: Why it is happening to my unit in particular? If your unit is still under warranty, then by all means run to JVC and have it diagnosed and repaired for free as soon as possible. Once your warranty runs out, if you start getting these errors again, it will cost over $150 just to have JVC look at it. Then several hundred more to repair the unit.
  
  THE SOLUTIONS
  
  Solution #1: Cold Reset The reason it tells you to REMOVE AND REATTACH BATTERY is not that the battery is bad, but that removing all sources of energy (battery and power cord) causes a COLD RESET. When you use the unit's on/off switch, parts of the camera are still receiving power and so you do not get the benefits of a COLD RESET. Just like your car; turning the ignition off will still power the clock and radio. You have to completely remove all power. If you are lucky, the camera will reset itself and start working again.
  
  Solution #2: Awareness of Humidity It seems older units would issue the same SAFEGUARD MODE error message for more than one problem. For example, older units do not tell you that they are shutting down for an hour because they detected high condensation, or moisture. So you play with the camera, remove the battery, reattach it, remove the tape, reinsert it, stand on your head, pray to your god, go to the bathroom, and voila! The camera is working again. It was nothing you did, just that the humidity went down enough for the unit to start working again. So consider high humidity as a possible source of the problem. If it is a rainy day, or you are near the sea, you might never get it to work that day in that location.
  
  Solution #3: Head Cleaning If you have never used a head-cleaning tape on your camcorder, you might give that a try. Mine has come back to life a few times by doing just that. Just don't do it too many times in a row because you can permanently damage the head. Read the instructions.
  
  So we have covered a few reasons why these errors come and go as if by magic. They are intermittent and recurring. The camera will appear to work at times, and the next minute it shuts down.
  
  Solution #4 : Fake Solutions Another reason why the problems come and go is that, as several technicians have reported, the problem can be a loose connector inside. That is why some people report that tapping the camera gently or rocking it side to side has brought it back to life. Some have gone as far as putting cardboard between the tape door and the tape mechanism in order to exert pressure and keep the camera working. I can only warn you that these kinds of "repairs" are temporary and likely to damage the unit further. Control your anger!
  
  Solution #5: Compressed Air On some models, there is no shield covering the many delicate electronic and moving parts in the tape mechanism when you open it to replace the tape. A piece of dirt, grain of sand, or other debris can get caught in the tiny gears and stop movement or throw them off alignment. You can explore this possibility by getting a can of compressed air at any computer shop and blowing it into the inside of the camera. Follow the instructions, keeping the air nozzle however many inches away from the target as they say. Practice on some other object first, because if you tilt the can or hold it too close to the target you can freeze the target and do more damage than good. This applies to fingers too!
  
  Solution #6: Tape Age, Brand, and Type
  
  Have you tried using a brand new tape? Or only your really old ones? Try a new tape.
  
  Now for the controversial issue of what brand of tape to use. Controversial because JVC's own Stacy Sample, Service Coordinator for JVC in Houston, TX says that "TDK and Maxell tapes tend to be two brands that are very problematic in our digital line wherein Panasonic, JVC and Fuji seem fine. We just find that TDK has the most problems, Maxell is a close second and Sony is 50% of the time. The others I mention rarely have a problem."
  
  A different point of view I ran into is. Yes, there is an issue, but it has nothing to do with the brand, but with the tape type. There are MP and ME tapes. These two types use different particles, and different lubrication. The two lubricating materials form some sort of goo when mixed together, if you use both types of tape in the same unit. So as long as you don't mix tapes of different types, they will work just fine in your camcorder. Some refer to these types as "dry" and "wet", but I don't know which is which. In any case, it is not known (to me) how accurate this point of view of not mixing tape types is.
  
  Solution #7: Do not store tape in unit Because of the delicate nature of the miniDV mechanism, do not store the unit with a tape inside. The theory is that a loaded tape will put pressure on parts of the mechanism and increase the chance that parts will stick together, making the tape harder to be pulled by the motor, causing the SAFEGUARD error. This might be more folklore than a real solution, but it is easy to implement and has no downside.
  
  Solution #8: Send in for Service Let us say you have tried all of the above and your camera still will not work. Now you have to decide whether to send the camera in for repair or not. My JVC camcorder, model GR-DVM90, turns out to be the model that most frequently suffers from these problems. For that reason, I am not having the camera serviced and instead taking JVC to court in a class-action lawsuit, which you are welcome to join free of charge and with no obligation.
  
  If you find your model on the list I provided above, and there are a lot of complaints, I would interpret that as meaning that the problem you have is not with your individual unit but a design problem. Fixing it will probably result in the problem coming back. But you will have to make up you own mind. JVC will take your money over and over again to make the same repair over and over. If you can afford to do that, great. I cannot, so we are going to court.
  
  
  • Re[2]: JVC GR - DVL300 Roelon - 10th Feb 2007 23:52
    this message helped other JVC filmers... I have the same problem with my DVL300, there is something that realy works! Eject the tape (if the camera allows you to) take the tape out. You can the a transparant LED at about the middle of the tape. Below that LED there is a flex-foil (browncoloured), when I carefully put the flex foil back in position (towards the camera) the camera works again without headcleaning or removing the batt. I guess that the tape eject system pulls the flex-foil out of position and after hundreds of time damages the flex untill you gat a bad contact there. Greetz, Roelon