Question about Digi 002 Rack FireWire-based Pro Tools LE External Sound System

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How do i clean the dc power? what is that? - Digi 002 Rack FireWire-based Pro Tools LE External Sound System

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If you dont know what that is, then I suggest you dont futz with the inside. Get a knowledgeable tech to replace the power harness for the switch mode power supply.

Posted on Oct 23, 2010

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I think you're referring to a problem that's known with Digi 002 Rack where the power harness oxidizes and loses power connection over time.

Digi used to send you a new power harness & contact cleaner to make sure that doesn't happen again. You should contact their customer service if you're having an issue with it.

Posted on May 27, 2010

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Posted on Jan 02, 2017

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Wen we take print from HP LaserJet p1007 we get plain paper out ?


The low voltage power supply known as DC controller voltages might be not passing in to the cartridge or transfer roller. chk cartridge contacts.
Remove DC controller, check contact springs, clean them, refix once again, if not resolved, chk with another cartridge, replace DC controller.

May 22, 2015 | HP Office Equipment & Supplies

1 Answer

Errore000064 occured


Power supply voltage error (high-voltage error)

The presence of a high-voltage error is communicated by the composite
power supply PCB. (The output for primary charging, developing, or transfer
has deviated from a specific level of voltage.)

Main cause: The contact has poor connection. The wiring is faulty. The composite power
supply PCB is faulty. The DC controller PCB is faulty.

Action
1. Contact
Is any of the contacts of the primary charging roller, developing assembly,
or transfer charging roller soiled? Or, is there poor contact?
YES: Clean the contact, and set it once again.
2. Wiring
Is the wiring between the contacts for the following normal: DC controller
PCB (J301), composite power supply PCB (J136), primary charging roller,
developing assembly, transfer charging roller?
a. DC controller PCB (J301) <-> composite power supply PCB (J136)
b. composite power supply PCB (J130-7) <-> primary charging roller contact
c. composite power supply PCB (J130-1) <-> developing assembly contact
d. composite power supply PCB (FT133) <-> transfer roller contact
NO: Correct the connection.
3. Composite power supply PCB, DC controller PCB
Try replacing the composite power supply PCB. Is the problem corrected?
YES: Yes.
NO: Replace the DC controller PCB.

Jan 19, 2011 | Canon imageRUNNER 3300 All-In-One Laser...

1 Answer

Error e0610096 in canon 1140


The Service manual say:

E061 is an error code associated with the mechanism controlling the surface
potential of the drum, and points to the following:
(The notation "xx" of detail code indicates the color of the developing
assembly; e.g., xx=01: M, xx=02: Y, xx=03: Y, xx=04: Bk.)

Detail code: 0096
Description: Vd2 is 550 V or less.
Possible cause: The Vd2 lower limit is reached

Step 1
Checks: Is the setting of
COPIER>ADJUST>V-CONT-M/C/
Y/K in service mode identical to the
settings recorded on the service label?

Yes/No: NO

Action: Enter the settings from
the service label newly.

Step 2
Check the detail code in service
mode (COPIER>DISPLAY>ERR).
Is it 0000 or 0001? YES Go to step 3.
Is it 0010? YES Go to step 4.
Is it 0020? YES Go to step 5.
Is it 0030, 0031, or 0032? YES Go to step 9.
Is it 0040? YES Go to step 12.
Is it 0050, 0051, 0052, or 0053? YES Go to step 16.
Is it 0070, 0071, xx80, or xx81? YES Go to step 19.
Is it 0060 or 009x? YES Go to step 20.

Step 3: Potential sensor unit
Checks:
Turn on and off the power switch.
Does LED1 on the potential
measurement PCB remain on
during potential control?

NO - Replace the potential sensor unit.
YES - Check the wiring from the
DC driver PC to the potential
sensor. Turn off and then on
the power switch; if the error
is indicated once again, go to
step 2.

Step 4: Pre-exposure lamp
Checks:
Does the pre-exposure lamp turn
on during copying operation?

NO - Check the wiring from
the DC driver PCB to
the pre-exposure lamp;
if normal, replace the
pre-exposure lamp.

YES - Check the potential
sensor unit. Turn off and
then on the power switch;
if the error is indicated
once again, go to step 2.

Step 5: Primary charging assembly
Is the primary charging assembly
connected properly?
NO - Connect the assembly
properly.

Step 6: Primary charging assembly
Is the primary charging wire
broken or soiled?
YES - Clean or route the charging
wire once again. Turn off and
then on the power switch; if
the error is indicated once
again, go to step 2.

Step 7: Primary charging assembly
Are there traces of leakage on the
primary charging assembly?
YES - Replace the primary
charging assembly.

Step 8: High-voltage cable
Is there electrical conductivity
from the primary charging wire to
the high-voltage transformer
(HVT-DC)?
NO - Check the primary highvoltage
cable.
YES - Replace the HVT-DC
PCB. Turn off and then
on the power switch; if
the error is indicated
once again, go to step 2.

Step 9: HVT-DC PCB
Is the primary charging assembly
fitted properly?
NO - Fit the assembly
properly.

Step 10: Primary charging grid plate
Is the grid plate of the primary
charging assembly mounted
properly?
NO - Mount the grid plate
properly.

Step 11: High-voltage cable HVT-DC PCB
Is there electrical continuity from
the grid plate of the primary
charging assembly to the highvoltage
transformer (HVT-DC)?
NO - Check the grid highvoltage
cable.
YES - Replace the HVT-DC
PCB. Turn off and then
on the power switch; if
the error is indicated
once again, go to step 2.

Step 12: Post-cleaning charging assembly
Is the post-cleaning charging
assembly fitted properly?
NO - Fit the assembly
properly.

Step 13: Post-cleaning charging assembly
Is the post-cleaning charging wire
broken or soiled?
YES - Clean or fit the charging
wire properly.

Step 14: Post-cleaning charging assembly
Are there traces of leakage in the
post-cleaning charging assembly?
YES - Replace the postcleaning
charging
assembly.

Step 15: High-voltage cable
Is there electrical continuity from
the post-cleaning charging
assembly to the high-voltage
transformer (HVT-DC)?
NO - Check the post-cleaning
high-voltage cable.
YES - Replace the HVT-DC
PCB. Turn off and then
on the power switch; if
the error is indicated
once again, go to step 2.

Step 16: Laser exposure system
Is the movement of the laser shutter
normal?
NO - Check the shutter
assembly

Step 17: Laser exposure system
Is the dust-proofing glass or the
bending mirror soiled?
YES - Clean it.

Step 18: Laser exposure system
Is the laser power normal? (See the
descriptions given for how to adjust
the laser power.)
NO - Adjust the laser power.
If output is absent,
replace the laser unit or
the laser driver.

YES - Check the
photosensitive drum for
grounding; if normal,
replace the
photosensitive drum.
(After replacement,
execute the work under
II. C. 2.)
Turn off and then on the
power switch; if the
error is indicated once
again, go to step 2.

Jan 13, 2011 | Canon CLC 1140 Copier

2 Answers

How do I check for faulty DC socket (power jack) in my asus eee pc


1) Start out by removing all power to the laptop.
Of course you probably have the AC adapter (Charger) removed, but also remove the Battery.

See if you can gently wiggle the Center Post.
Also look to see if it seems that the entire DC Power Jack is moving around.

You may have to scrutinize pretty close to see any perceptible movement.
There should be No perceptible movement at all.

This is an example of a DC Power Jack for an Asus Eee 1005HAB Notebook PC.
It may, or may not, be The DC Power Jack you will need, but is used here for an example of the DC Power Jack construction,

http://www.rolta.co.uk/new-asus-1005hab-laptop-power-jack-pin-socket-dc-connector-165mm-29396-p.asp

You can click on any of the three views shown, and have all three views enlarged.
Click to enlarge.

Looking at the view on the far left, the Front view. You will see what appear as three pins sticking up.
These are Prongs.
Shown again in the Back view, which is the middle example.

These two views show the DC Power Jack upside down, in relation to how it sits on the motherboard.
The Prongs go down through holes in copper circuit traces on the top of the motherboard, and are soldered to the motherboard on the bottom side.

A) From accidentally bumping the AC adapter's plug while inserted into the DC Power Jack, the solder joints may have cracked. This can also happen with just normal usage from plugging, and unplugging the AC adapter.

Solution for this is to re-solder the cracked solder joints.
Sounds easy, but in reality the entire laptop has to be disassembled down to the bare motherboard in your hand. No Processor on the motherboard, no Ram Memory, no nada, but the bare motherboard.

Soldering can ruin a Processor, Ram Memory, or associated hardware components still installed on the motherboard.

B) The DC Power Jack may be broken. The Black body of the DC Power Jack that you see in the examples, is made of plastic.
This entails de-soldering the Prongs of the DC Power Jack, removing it, properly cleaning the area, (area around the copper circuit trace holes in the motherboard), re-tinning the area around the circuit trace holes, then installing the new DC Power Jack, and soldering it into place.

This is a basic example of DC Power Jack replacement,

http://www.laptoprepair101.com/laptop/2007/12/06/dc-power-jack-repair-guide/


C) The motherboard area that the DC Power Jack is soldered to, can be compared to a 'Peninsula'.
A small strip of motherboard that sticks out away from the main body of the motherboard.
This 'peninsula' can crack at the area where it meets the motherboard.
This will result in stretched broken circuit traces.

[Think of a circuit trace as being a very flat, thin, copper wire ]

If this has occurred toss the motherboard.


[ In regards to the DC Power Jack repair guide in the link above;

1. You don't need a soldering station. A soldering iron around 40 to 50 Watts with a No.2 chisel tip, and well tinned, will work just fine. Have a very damp sponge nearby to constantly clean the tip with.

2. I advise using Desoldering Braid instead of a Desoldering Tool. The braid is laid on the solder joint to be removed. The tip of the soldering iron is laid right on the braid, above the solder to be removed. The copper braid will 'soak up' the solder.
A lot handier than a Desoldering Tool IMHO.

3. Isopropyl Alcohol is EXTREMELY FLAMMABLE! Do not use near the soldering iron, and use in a WELL ventilated area with NO sparks or flames present!

4. If you are rusty with your soldering/de-soldering techniques, practice awhile before attempting this procedure.

Do Not overheat the copper circuit trace area around the holes. This will burn the area, and it won't accept tinning. (Tinning: Applying a light coat of solder) If it will not accept tinning, toss the motherboard at the cat. It's junk.

Overheating can also lift the copper circuit trace right off of the motherboard.
Make SURE you make a pretty, clean, solder joint. A cold solder joint will result in you starting all over.
It's a pain in the keister to disassemble the laptop in order to repair a cold solder joint.

Make sure the soldering iron tip is clean, and well tinned before you start.
Clean the tip often by wiping it across the damp sponge ]

The center pin of your DC Power Jack may be 1.0mm in diameter, or it may be 1.65mm
Make sure you obtain THE correct DC Power Jack.
The one's that are advertised around $2 to $5 may be junk, and no where near the actual DC Power Jack you need.

This place may be the one to go to. Don't know, haven't tried them, and not advertising for them.
I do like how they want you to send a photo in, and they also ask questions BEFORE you purchase.
IMHO it seems as though they may be professionals in their area of expertise,

http://www.laptopsockets.co.uk/

If you wish to have a Service Manual I do not see any online links to give you, except for one that details how to disassemble down to the Harddrive.
From there it would be a guide to an Asus Eee PC that is fairly close IMHO.
Plus guidance from me.

Have questions mtrunner53 please post in a Comment.

Regards,
joecoolvette

Dec 13, 2010 | ASUS Eee PC 1005HA-PU1X-BK Netbook

1 Answer

My camera will not turn on!


Try to power it using battery and then, DC source. If its not powering, check battery contacts and clean them. If you have a volt measure unit, measure the volts from the DC source and compare the results with the values from the DC unit, also measure the battery and see its status. If you cant solve it in theis basic way, try to go to a professional repair center for a detailed analyzis. Cheers

Dec 09, 2010 | Sony Cyber-Shot DSC-P41 Digital Camera

1 Answer

How to open the power jack for GQ-zx 5361 laptop . and replace it with new one...


1.ESD wrist ********, connected to a good ground, work on a table.

2.Remove the AC adapter if plugged in, and the battery.

3.Completely disassemble the laptop, down to just the bare motherboard in your hand.

4.Use your soldering station, and I advise using a soldering wick instead of a desoldering tool, on the DC Power Jack leads. Works much better.
Remove the old DC Power Jack, being careful to not burn the motherboard, lifting the circuit traces, and rendering the motherboard useless.

5.Clean the DC Power Jack mounting area with Isopropyl Alcohol, and Q-tips to remove the residue. [WARNING! Isopropyl Alcohol is =>Extremely Flammable. I use the 91% Alcohol version]
Make sure the circuit trace mounting hole has a good tinned surface.

6.Install the new DC Power Jack in the circuit trace mounting holes. CAREFULLY apply solder to the DC Power Jack leads, and be sure to make good solder joints.

7.Reassemble the laptop

Sorry, I don't have access at present to Fry's GQ line of laptops for a Maintenance and Service Manual, to give you a link.

Aug 20, 2009 | Computers & Internet

2 Answers

How to clear E000064 problem in ir3300 model


E064
0000 The presence of a high-voltage error is communicated by the composite
power supply PCB. (The output for primary charging, developing, or transfer
has deviated from a specific level of voltage.)
Main cause The contact has poor connection. The wiring is faulty. The composite power
supply PCB is faulty. The DC controller PCB is faulty.
Action
1. Contact
Is any of the contacts of the primary charging roller, developing assembly,
or transfer charging roller soiled? Or, is there poor contact?
YES: Clean the contact, and set it once again.
2. Wiring
Is the wiring between the contacts for the following normal: DC controller
PCB (J301), composite power supply PCB (J136), primary charging roller,
developing assembly, transfer charging roller?
a. DC controller PCB (J301) <-> composite power supply PCB (J136)
b. composite power supply PCB (J130-7) <-> primary charging roller contact
c. composite power supply PCB (J130-1) <-> developing assembly contact
d. composite power supply PCB (FT133) <-> transfer roller contact
NO: Correct the connection.
3. Composite power supply PCB, DC controller PCB
Try replacing the composite power supply PCB. Is the problem corrected?
YES: Yes.
NO: Replace the DC controller PCB.

Feb 26, 2009 | Canon imageRUNNER 3300 All-In-One Laser...

2 Answers

Canon ir 2200 Error code E000064-0000


E064 The presence of a high-voltage error is communicated by the composite power supply PCB. (The output for primary charging, developing, or transfer
has deviated from a specific level of voltage.)
Main cause The contact has poor connection. The wiring is faulty. The composite power supply PCB is faulty. The DC controller PCB is faulty.
Action
1. Contact
Is any of the contacts of the primary charging roller, developing assembly, or transfer charging roller soiled? Or, is there poor contact?
YES: Clean the contact, and set it once again.
2. Wiring
Is the wiring between the contacts for the following normal: DC controller
PCB (J301), composite power supply PCB (J136), primary charging roller, developing assembly, transfer charging roller?
a. DC controller PCB (J301) <-> composite power supply PCB (J136)
b. composite power supply PCB (J130-7) <-> primary charging roller contact
c. composite power supply PCB (J130-1) <-> developing assembly contact
d. composite power supply PCB (FT133) <-> transfer roller contact
NO: Correct the connection.
3. Composite power supply PCB, DC controller PCB
Try replacing the composite power supply PCB. Is the problem corrected?
YES: Yes.
NO: Replace the DC controller PCB.

Feb 24, 2009 | Canon imageRUNNER 3300 All-In-One Laser...

1 Answer

I need to replace the DC jack on my laptop


Do Not Attemp to Replace the Jack Unless You Have Experience with Soldering... The Original DC Jack Must First Be Desoldered and Removed... You Need A Desoldering Pump or Solder Wick (braid) To Remove the Old Solder From The Jack Post Pins..... DO NOT ATTEMP TO RIP OUT THE OLD JACK!!!!! You Will Pull The Contact rings from the center of the motherboard out and render the motherboard useless...


Slowly and carefully Unsolder the dc jack, Remove it and Clean the board.... Very Important to Clean the Motherboard after desoldering the old jack.... You Must Remove all old Flux...

Then Apply a light layer of fresh solder to all the contacts on the motherboard....

Apply Flux paste to the New DC Jack Pins and a light amount onto the contacts on the motherboard....

Insert the new DC JAck Into The Slots and Apply Solder to all points on the underside of the motherboard....

Flip The Motherboard Back Over, To THe Side Where THe DC Jack Is,, and Apply Flux then a light amount of Solder To The Side Pins and Back Power Pins ...


Then Clean the Motherboard off again using an Electronics grade circuit board cleaner (found at radio shack) or a tiny amount of denatured alcohol applied to a paper towel .. THe Purpose is to remove any remaining Flux..... as this will just deteriorate the New Solder over time unless cleaned off...

Good Luck

Nov 17, 2008 | Computers & Internet

1 Answer

Gateway M3A laptop DC power connector problem


You have 2 choices.. One : You can Desolder the DC Power Jack from the mainboard, clean the pins and connections on the board, then Resolder the DC Power jack back on. Or TWO: purchase a new DC Power Jack and Remove old one / replace with new one.. This will fix your Laptop Power problem..

Jun 02, 2008 | Computers & Internet

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