20 Most Recent Aiwa HV-MX100 VHS VCR Questions & Answers

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Aiwa mx100 (al system vcr)

if your vcr is a multisystem, select the proper system in your vcr for the video to be played. but if not, you cannot play your PAL in your NTSC vcr. good luck!
6/1/2020 10:25:09 AM • Aiwa HV-MX100... • Answered on Jun 01, 2020
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Aiwa HV-MX100 VCR - An Illustrated Guide to Cleaning the Mode Sensor - fixes...

Here's a guide to cleaning the mode sensor (or mode switch) contacts in the HV-MX100. Mine had all of a sudden started to misbehave, loading a tape and then shutting off, then trying to eject the cartridge without properly unloading the tape, or shutting itself off after 5 seconds... After I finally figured out this fix, it's now working like it should.

Background: A VCR uses a "mode sensor" or "mode switch" so that the electronics can know the physical state of the tape and the loading mechanism. In this VCR, the mode sensor is partly electrical - with some contacts connected to the shaft of the loading motor - and partly optical, with LED-driven sensors that detect the end of the tape and such. The problem was with the electrical portion.

The culprit: Lubricating gel within the cap that holds those electrical contracts had migrated onto the circuit board that the contacts trace. The contacts stopped making consistent electrical contract. The VCR's microprocessor saw states, or state transitions, that should be impossible, and shut the VCR down for protection.

Here's a photo, after I'd just started cleaning the circuit board traces (I only cleaned the outer ring, top-right in this photo). While it looks like the copper traces have been heavily dented, what you're seeing is actually the gel that's all over the traces and that the moving electrical contacts have tried to push out of the way:
469c57e.jpg

A tissue is enough to clean the circuit board, but it's also good to clean the contact fingers and get rid of some of the extra gel in the cap. Contact cleaner or circuit board cleaner or an alcohol wipe are better, to get all of the residue off.

Here's a photo of the contacts in their carrier within the cap. The blue color is only due to the lighting:
58f8e0a.jpg

And here's a photo of the cleaned board with the cleaned contacts sitting on it. The shaft is keyed and the carrier fits on it in only one position:41c4de0.jpg


Here are the steps to remove and clean that board:

  1. Unplug the VCR.
  2. You will not need to do any soldering. It's just mechanical disassembly, but you need to do it fairly precisely. The only tools you'll need are two Phillips screwdrivers (#2 and #1). A small long-nose pliers is also helpful for reattaching cables.
  3. Before you start, remember to keep track of where each screw came from. The screws are not all the same!
  4. I presume you've already removed the case cover.
  5. Remove the two knobs from the front panel (one's inside the other) by pulling carefully.
  6. Remove the front panel - it unclips on all sides. There are no screws.
  7. There's a metal frame cross piece toward the back that holds in the vertical board that's behind the video mechanism. Before you remove it, unhook the flat cable that comes over it from the back board.
  8. The remove the frame cross piece; there are 3 screws, one of which is practically underneath the frame and you'll want to take care not to lose it inside the unit.
  9. The next piece to come out is that board that's right behind the video mechanism. There are 2 more cables to unhook; one goes to the erase head (unhook it at the erase head and unthread it), the other presses into a board in the video mechanism right in front of this board we are removing. Then remove the 2 screws that hold this board in.
  10. Now, there are 5 more screws that hold the video transport mechanism in. One is in the rear, two are in the front in wells in the black plastic, and two go in from the underside of the base. Remove them, and carefully pull the entire video mechanism out to the front. Note how the mechanism is seated at the back, held in under a couple of notches.
  11. Carefully turn the video mechanism upside down. The board you are interested in is the largest board on the bottom, shown here in close up. The contacts and gel are right under the circular cap you see here:49ef782.jpg
  12. There are 4 cables to remove from this board. Two are on top - a flat cable that goes, I think, to the motor assembly (pull up the latch on the connector before you pull the cable out), and a 2-conductor cable that clips into this board (gently wiggle the connector to clear the bit of metal frame right near it).
  13. 2 flat cables connect to this board and go to adjacent smaller boards; you can pull them out (at either end) after you remove the 3 screws that hold the board in. (These are the screws that need the #1 Phillips screwdriver). Here's what the other (top) side of the board looks like; you can see one of the flat cables, and one of the small clips that holds in the black cap poking through:568ac02.jpg
  14. Finally, you can unclip that black cap - there are 3 clips to wiggle on the other side of the circuit board - and take it apart and clean it. You don't need to mark the position because the cap is symmetrical, and the carrier with the contacts will only go in in one position on the shaft. (Do not force it on!!)
  15. Now, clean the board, clean the contacts, clean some of the gel out of the cap, and carefully put everything back together! Do not plug it in until all of the internal cables are back in place. You can leave the front panel and cover off, but everything else must be put back and screwed down.
CAUTION: You will want to try out the VCR with the cover off so you can see what it's doing, but unless it's pretty dim, you can expect it to immediately eject every tape you put in. Do not despair; this is happening because the optical portion of the sensor system is being fooled by the light coming in from the top. Do notice that the VCR is no longer turning itself off after 5 seconds (I hope!!).

Now, put the cover on, or shield the mechanism from light, and you should see it working like it should. If so, be happy and put the rest of the VCR together.


Here's a mechanical diagram of the video mechanism that may be helpful. (I had to break it into 2 pieces because of the size limit here, and they won't line up.) The mechanism is TN-6500-232, and the board we are working on is near the bottom and labelled "BASE C.B.":


15bdfb9.jpg
7e63418.jpg


Good luck!!
on Feb 20, 2014 • Aiwa HV-MX100 VHS VCR
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Freevew channels have gone from my alba 22" and screen message states database empty

Do a full retune of the TV.
1/17/2014 5:02:01 PM • Aiwa HV-MX100... • Answered on Jan 17, 2014
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I did what Gupta said, still nothing. Each component works separately but not together.

The yellow one should go to a VIDEO signal socket. Red is right audio and White is left audio.
1/4/2014 2:20:08 AM • Aiwa HV-MX100... • Answered on Jan 04, 2014
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Vcr door won't open

It's probably just a little spring that has come. Or that a latch as come out of place. You can sometimes correct it by removing the front side part. You will have to take off the top cover and sometimes the base to get to the screws that hold the front on.
1/4/2014 2:15:06 AM • Aiwa HV-MX100... • Answered on Jan 04, 2014
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Tape stuck

Be the first to answer 8/24/2013 5:16:12 AM • Aiwa HV-MX100... • Posted on Aug 24, 2013Be the first to answer
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Tape doesn't eject

Since how long? 90% probability is weak, aging Eject Motor belts. Replace
12/4/2011 5:38:06 PM • Aiwa HV-MX100... • Answered on Dec 04, 2011
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My Aiwa HV-MX100 vcr has not been used in about 18

Is your VCR fixed?From what you have written, I understand that you have not used the VCR for many months. And since you are hearing a whirring noise, the eject motor is working, but the belts are spoilt, and are slipping. Hence your problem. I suggest you open the top cover of the VCR and observe the eject mechanism. As suggested, you will - in all likelihood, observe that the belt driving the eject gears is slipping.
11/14/2011 4:36:34 PM • Aiwa HV-MX100... • Answered on Nov 14, 2011
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Hi, I bought one of these from eBay and although

HI, sorry to hear that. you have to buy another controller from AIWA. and bring the unit as well to let them know the exact model of your unit. to avoid damaging the unit
2/13/2011 12:46:05 AM • Aiwa HV-MX100... • Answered on Feb 13, 2011
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Parts

Try CPC or Willow Vale Electronics if you are after parts.
1/17/2011 11:43:18 AM • Aiwa HV-MX100... • Answered on Jan 17, 2011
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I have a aiwa HV-MX100u

Hi,
You can contact nearest Sony service center for Aiwa unit service because Aiwa brand has been owned by Sony and providing service/ repair.
Hope this info will help you.
Thanks.
11/9/2010 6:16:31 PM • Aiwa HV-MX100... • Answered on Nov 09, 2010
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I have an Aiwa hv-mx 100 vcr Now some time the

Pal and NTSC devices signal prequencies don't matches.Can't work to gether.U sure it different Pal and NTSC mix together devices before?
10/22/2010 5:49:51 PM • Aiwa HV-MX100... • Answered on Oct 22, 2010
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VCR working properly but, the screen dose`t show

Try to run a cleaning tape. your problem is caused by dirty heads.
7/11/2010 2:01:13 PM • Aiwa HV-MX100... • Answered on Jul 11, 2010
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Toshiba VCR. It records OK but playback is black, white shaky

What do you mean by "records OK"? It sounds to me like you are not getting a signal to record. I had this problem before, as well. There are two things I recommend you try. The first is that (if you are trying to record over-the-air tv, you will need a digital television converter box connected directly to the vcr. If you already have one and are sure that it is connected correctly, you may also try an RF modulator. When I got my new vcr, it wouldn't work at first. I eventually found out that I would need an RF modulator in order for it to work on my tv. I hope these suggestions help. Good luck! Sincerely, Der Strom
4/26/2010 4:38:53 PM • Aiwa HV-MX100... • Answered on Apr 26, 2010
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The TV is set to the video channel , be able to

make sure the video (yellow) rca plug is in the correct output jack on the tv......
12/9/2009 3:02:01 PM • Aiwa HV-MX100... • Answered on Dec 09, 2009
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Current location for the HV-MX100 VHS VCR User Manual download

The current location for the downloadable User Manual is http://www.docs.sony.com/reflib/docget.asp?manualid=16110&template_id=&region_id=1&DL=

The manual is at Sony's web site since Sony bought out Aiwa in 2002 (and discontinued the brand in 2006).
on May 06, 2009 • Aiwa HV-MX100 VHS VCR
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I am having trouble channel setting and recording.

If you have a bad or fuzzy picture when viewing tapes on VCR then you need a new video drum. I think you can buy another that is for your brand on the internet. More VCR Repair -

http://www.videouniversity.com/vcrfirst.htm
11/10/2008 8:55:22 PM • Aiwa HV-MX100... • Answered on Nov 10, 2008
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