Question about Quantum (SE21S011) 2.1 GB Hard Drive

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The drives have to be of the same rev number. must be in an anti static environment, and you should have done this before.

Posted on Oct 29, 2007


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What is different between electronic circuit & PCB layout.

The electronic circuit is the map of the components and and the flow of the current, (schematic) PCB (printed circuit board) is the layout of the components (where they go and symbols of what they are.
Hope this helps

Jan 12, 2011 | Lands Phones


Samsung LE40R73 LCD clicking

The power supply pcb located in the centre of the panel has 4 capacitors on the pcb that go faulty. This can be seen by the tops on them bulging up with possible brown fluid discharge. The value of these is 1000uF and after replacing these (can be purchased from Maplins or any other electronic components outlet), the fault will be cured.

on Feb 04, 2010 | Samsung LE40R73BD 40 in. HD-Ready LCD...

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ERROR CODE E602-0003 What is this?


1) Are the connection and the cable of the connector (J1017) on the main controller PCB and the connector (J1551) on the hard disk drive normal? NO: Correct the cable connection.Hard disk drive (HDD), Main controller PCB
2) Try replacing the hard disk drive and downloading the system software.Is the problem corrected?
YES: End. NO: Replace the main controller PCB.

3) HDD unit.
Remove the rear upper cover and the reader rear cover. Remove the three screws, and detach the cover, Remove the two screws and disconnect the two connectors then, remove the HDD unit. Remove the six screws and detach the HDD When mounting the HDD unit,be sure that the flat cable is under the plastic sheet of the HDD upper case.

Solution 1# :
It can be a Sector Problem ,to resolve it just press 1&9 keys at the same time the machine started the HD Diagonose and it repared the sector error without replacing the HDD .

Solution 2# :
try to go in to disc check service mode to clear the sectors ,this should work if it doesnt you will need to replace the hard drive .

Solution 3# :
Try HD clear & then HD check for every sector in service mode. Then try to upgrade system software;If nothing works change hard disk ,format & install system software. Posted by Kuyung at 5:50 AM icon18_edit_allbkg.gif Labels: error code 602-0003 IR5000, error code 602-0003 IR6000

May 07, 2010 | Canon imageRUNNER 5000 Copier

2 Answers

Hi tv comes on then go to sb no picture if control pcb is disconnecte s/b light stays green volts ok have replaced control pcb z sus was short and have replacecd


I understood that the TV goes on protect mode (standby) when the control pcb is connected.

Please provide details on TV model and details on control pcb. If control pcb is a control board with touch button , look for components shorting with the chassis. If you are talking about digital controller board (big main board) then one of the parts connected to board is faulty.

Aug 25, 2009 | LG Televison & Video

2 Answers


Did you reset you lamp hours when you reinstalled you new lamp?

Sep 05, 2008 | Office Equipment & Supplies

2 Answers

Hard disk problem

i suggest that you'll buy another hard disk.. repairing hard disk is a tough job.. machines had done it, it is a very difficult job if its manually repaired... your hard disk maybe damaged if your system can't detect it. Just make sure that the cables are properly place/attached.

Jan 25, 2008 | Seagate Barracuda 7200.7 40 GB Hard Drive

2 Answers

Hard disk

your seagate is absolutely damage. replace hard disk instead. maybe some repair shop can repair hard disk. Just try ok.

Dec 26, 2007 | Iomega MiniMax (33464) 250 GB Hard Drive

2 Answers

My computer stopped detecting my hard drive

Hi, Based on your post/description: 1. Tried on 3 different computers - no go, so it's not a PC problem; 2. Tried replacing the cable - no go, so it's not an interface problem; 3. That leaves you only with the Firelite itself. An external hardrive would consist of 2 main parts, the electronic board and the hard disk itself. The board seldom (if ever) fails. Its function is to provide conversion/interface from the SATA/IDE connectors of the HD to the out USB/Firewire. The HD more often than not fails. Most external storage uses a standard HD inside the enclosure. Your possible options: a. Claim warranty/replacement; b. Replace the HD only; c. Physically remove the HD and connect it direct to a desktop either as IDE or SATA and run manufacturer's diagnostic and/or third party recovery software; d. Seek services of professional data recovery firms (if data/files are mission critical); Hope this be of some help/idea. Post back should you need further information. Good luck and kind regards.

Sep 03, 2007 | SmartDisk FireLite 40 GB Hard Drive

1 Answer

Seagate Barracuda 7200.7 ST380011A

Hi, your query, "is there a way to fix it?" if you intend to use if again normally, afraid no way; if you want to recover/retrieve important data/files, probably: 1. seal the drive in a sandwhich ziplock plastic bag, leave it in your freezer overnight, install as a secondary master in another PC, autodetect in CMOS, if detected, boot to your OS, copy whatever you can real quick, soon as it reaches ambient temp chances are it will no longer be readable again; or 2. assuming it is an electronic problem, using a torx driver remove the pcb, get hold of another hd of same brand & model, borrow the good PCB and tempo use it, again install as secondary master in another PC. if no available 2nd HD at hand, install and while in CMOS autodetect HD, feel around the PCB components and determine which heats up faster than the others, spray it with a contact cleaner, if detected continue to your OS to back it up, continue spraying to maintain lower temp; 3. assuming mechanical problem (though highly unlikely) lightly tap with a small rubber mallet (rubber coated handle of a side cutter will do) bottom of drive and install; 4. assuming an electrical connection problem, reheat the 4 power terminals at the bottom (+, gnd, gnd & +) and/or remove the pcb and check/clean contacts at the back of the PCB and its mate, 2 sets; 5. assuming you can do component level soldering and can use a VOM, check surface mounted fuses on PCB near power connector. All of the above are last resort and are not guaranteed to revive your HD. Most require that you run your unit open with possible risk to electrical shock. If you are not comfortable, it would probably be to your advantage to seek the services of a qualified service professional. Sometimes it work, sometimes not, hope it be of some help to you. Pls post again how things turn up. Good luck and kind regards.

Aug 01, 2007 | Seagate Barracuda 7200.7 (ST360014A-20PK)...

1 Answer

Hard Disk Quantum QML20000LD-A

Hi, may I offer an alternative solution? You may want to try and replace the entire PCB assembly rather than repair. I would assume that the Quantum QML20000LD-A is a few years old and so many of the same brand/model would be lying around computer repair shops. Even if defective, these drives can be: 1) direct parts source; and 2) remove/use the entire board. You can even find this kind of HD from old CPUs (166-550 MHZ.) I believe you can get them relatively cheap and faster. Hope this somewhat helps. Cheers.

Apr 16, 2007 | Quantum Fireball Lct20 (QML20000LD-A) 20...

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