Question about Panasonic AG-DS555 S-VHS VCR

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Replacing capacitors Can any of you do the repairs..replacing all the caps on the yc and io boards of the AG-DS545 and 555? I have 4 machines total

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I have done several DS55s, DS850s, DS550s. Let me know if you're still interested. Typical repair cost runs $300 - $500.

Posted on Apr 16, 2009

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Posted on Jan 02, 2017

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32MD251D/37 will not power on



Zack Corpier

Workup for repair

02/22/2013

Diagnosis for Magnavox 32MD251D/37

Symptoms:

Will not power on

Once on, if turned off power might not return

Does not respond to power cycling

Possible Culprits:

Overloaded fuse

Damaged/fried power board

Damaged/fried inverter board

Damage to wiring or related

Overloaded capacitors on power board - I identified this based on a visual inspection and a multi meter test




https://lh6.googleusercontent.com/-Mcf67G5l3l8/USgitModWZI/AAAAAAAACRo/PwjueC45Hjo/w333-h319-o-k/caps.png


Problems Identified:

Capacitor 2079 appears overloaded - 1200uf 35v

Capacitor 2080 appears overloaded - 1200uf 35v

Explanation:

The capacitors referenced regulate the voltage controlling the power. These caps have a limited lifetime in hours which is usually around 3000. The device was left on for an extended period of time overloading these essential components.

Resolution:

1. I will order a set of replacement capacitors

2. Discharge board prior to work

3. Remove and replace damaged capacitors

Required Parts (total cost $30):

(2) Vented axial 1200uF 35v Capacitors - $8

Variable wattage soldering iron (minimum 35w) - $22


Feb 10, 2013 | Magnavox 32MD251D/37 Tabletop Pedestal...

1 Answer

I have a video Panasonic AG-1980. Defect: When I am assisting a cassette and the key this TBC in off the image is normal and the color also. I slide the control soft-sharp and the silent image according to...


these decks are notorious for bad surface mount capacitors in the video and servo circuits. there will be quite a few that will need to be replaced. if you cant do it yourself, it will probably cost too much to repair. you will need access to an esr meter (pasive capacitor checker that checks the capacitor in circuit and the part does not have to be removed), a good soldering iron with a small tip, flux, thin solder, hemostats,solderwick blue and patients. the capacitors in question are the little round silver capacitors soldered directly to the boards. test all caps and locate caps with bad readings and mark them as bad but dont cover up the value marked on the top.the voltage is listed as a letter followed by the series of cap.(eg: 16 jhb would be a 16 mfd, j voltage rating, hb series cap) you can buy these caps cheap from digikey online. you need to be very careful when replacing the caps as if you do it wrong you will pull a trace and have to do major jumper wire work to replace the broken trace. the key to removing the bad cap is to grab them with the hemostats and squeeze, once the hemostats have a good grip of the cap start spinning the cap, dont pull just spin.you are trying to break the leads. once they break take your hot iron and wipe off what is left of the cap leads, let it cool and go back and remove remaining solder with the solderwick. clean the spot on board where cap was with anhydrous alcohol to clean any fluid that leaked out of the cap and made it bad. gently grab replacement cap with hemostats so you can hold it and apply flux to bottom of leads, place cap in its place watching polarity( black line on cap is negative and lines up with solid white side of silksceen on board or opposite the little plus on the board, if there is not a line on the cap or if there is a small "n" on the board it is a non polarized cap and direction does not matter)put a small(SMALL)amount of solder on your iron and touch it to the remaining exposed lead. if you fluxed enough and you used the correct amount of solder it should jump to the lead and leave a small shiny round solder joint. practice makes perfect and this will fix your problem. you may have to replace 40 to 50 caps maybe more, depends on how many are bad. good luck with your repair, 1980's were good decks!

Aug 20, 2011 | Panasonic AG-1980 S-VHS VCR

1 Answer

Dell w3000 will not turn on at first try. Takes many attempts turning it off and on before video comes up. Audio always works and green light is on.


Faulty caps, if you take the back cover off of the monitor, there are 2 boards on the outside edges of the left and right of the monitor. these boards are covered by metal shields. remove the 3 screws on each board shield and slide them off.(careful this can be tricky) on the boards are 2 capacitors that need to be replaced. 4 total, 2 on each board. the capacitors are 150uf at 35 Volts. go to your local electronics repair shop to get the parts and tools needed to do this repair.
make sure to get the polarity of these caps right. stripe side on cap goes to the minus.

Dec 18, 2010 | Dell W3000 30 in. HD-Ready LCD Television

1 Answer

Green light(timer0 is blinking for last 12 hours . no picture . screen is totally dark


this means the DM board is not booting up. You will typically need 4-8 capacitors to fix this issue. you have to pull out the board and solder in new parts. let me know if you feel skilled enough to do this and I can give directions. The caps will usually bulge at the tops and are 1000uf .. mitsubishi recommends replacing with 680uf 16v caps..

if you do not want to repair yourself, a repair center can ship the chassis in for rebuild, total repair about 400 or 500 $

May 21, 2010 | Mitsubishi WD-52525 52" Rear Projection...

2 Answers

I get a green power button, no picture. I have to turn the Dell TV on 6-10 times beofre picture comes up. What is wrong with it?


I have this tv, and have had the EXACT problem. my solution was simple. if you take the back cover off of the monitor, there are 2 boards on the outside edges of the left and right of the monitor. these boards are covered by metal shields. remove the 3 screws on each board shield and slide them off.(careful this can be tricky) on the boards are 2 capacitors that need to be replaced. 4 total, 2 on each board. the capacitors are 150uf at 35 Volts. go to your local electronics repair shop to get the parts and tools needed to do this repair.
make sure to get the polarity of these caps right. stripe side on cap goes to the minus. 1

Mar 28, 2010 | Dell W3000 30 in. HD-Ready LCD Television

1 Answer

Good Audio, Bad Video


sounds like a loss of luminance -- check the analog yc pack for bad capacitors.

Mar 07, 2008 | Panasonic AG-1980 S-VHS VCR

1 Answer

Relace mainboard in mini dv tape deck


what symptom does it have? describe what it is/isn't doing; most of the problems I've seen with AG-DV2000s are related to either defective capacitors on the mechanism drive board or dried grease on the reel table positioning arms. I've never had to replace a main board in a 2000.

Jan 02, 2008 | Panasonic AG-DV2000 Mini DV VCR

4 Answers

No video output


AG-DS555s are plagued by capacitor failure problems on all the video boards in the deck. Replacement of all surface mount electrolytic capacitors is the solution, but before you try that, give the heads a good cleaning. It's amazing what a miniscule amount of dirt on the heads will do.

Dec 13, 2007 | Panasonic AG-DS555 S-VHS VCR

6 Answers

Power up


I followed instructions posted at
http://vassfamily.net/projects/DMRE85H/dmre85h.html
and I opened the unit.
I unscrewed 3 black screw on back, removed two side covers, then I unscrewed 4 silver screws (2 & 2) on both sides and removed the top cover. Then I unscrewed 4 screws (those four screws that hold the silver hlder on the board - they are down, so you need to use long screwdriver.
Carefully moving & holding HDD in the silver holder (moving it only little bit up from the board to see underneath on the board), and I was able to see 2 blown capacitors (with brown stain on top). They are C1261 & C1260 caps - ELNA 680uF RJF 10V.
I did not attempt to remove silver holder with HDD totally now.
In reverse order, I screwed everything back.
I ordered parts at www.panasonic.com support page for model SC-HT1500, then choosing SA-HT1500 - Main Unit. I found those 2 same capacitors; they cost $1.89 each. Shipping & tax came higher than price of parts. I
I already have soldering iron, and I will try to replace blown capacitors by myself after receiving ordered parts.
I will post my next message after receiving parts - approx. in a week or so.

Dec 03, 2007 | Panasonic SC-HT1500 System

3 Answers

Playback is poor quality, tracking wont fix it and have cleaned head


Dear Iain, Do you route your Cable / Antenna through your VCR's Inputs (at rear) ? If yes, Do you find that the video of these cable /antenna channels is good? If the answer is yes again,then, in all likelihood, you are having a machine with dirty Video Heads.Did you use a 'Wet' Type Head cleaning cassette? If no, then I suggest you get one and use it. Again it is entirely possible that the Video Heads are worn out. How old is the VCR? How many tapes have you played back on it? Do you observe some black streaking along the edges of the images on the screen, which increase or decrease when u change the tracking? If yes, then it is time to get the Video Heads replaced.In India they would cost an equivalent of US$ 10-15. I do not know how much they would cost in your country, but it cannot be much more.

Jul 28, 2006 | Panasonic AG-DS555 S-VHS VCR

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