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Pcb P.W.B. :6870a90037a PWB ASSY : 6871A10009 not working. new pcb purchase amount?

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I have an LG RU-42PX11 plasma tv. A couple weeks ago we heard a pop and the picture went blank. I can still change channels via cable box and I have sound but no picture.


6871QCH034A PCB ASSEMBLY,DISPLAY CTRL ASSY 42V6 NEW MCM(1222) LVDS
202 6871QDH066A PCB ASSEMBLY,DISPLAY YDRV ASSY 42V6 YDRV TOP ASSY
203 6871QDH067A PCB ASSEMBLY,DISPLAY YDRV ASSY 42V6 YDRV BTM ASSY
204 6871QLH034A PCB ASSEMBLY,DISPLAY XRLT ASSY 42V6_XL(4LAYER)
205 6871QRH037A PCB ASSEMBLY,DISPLAY XRRT ASSY 42V6_XR(4LAYER)
206 6871QYH029A PCB ASSEMBLY,DISPLAY YSUS ASSY 42V6
207 6871QZH033A PCB ASSEMBLY,DISPLAY ZSUS ASSY 42V6

These are the part numbers for all the boards that deal with the display. Im leaning towards the sustains as well and you need to do both at the same time cause if one is bad and you replace just one, a bad one can fry the new one.

Jan 20, 2017 | LG Televison & Video

2 Answers

I have an okidata printer c9600, and it is printing a grayish background where in white areas.


The white area gets dirty. (Figure 7-2 )
• Has the image drum been exposed to external light for a long time?
YES Replace I/D Unit.
• NO Is the fuser unit roller dirty?
YES Replace the fuser unit.
• NO Correct the [Paper Thickness] setting.
NO Properly set the [Paper Thickness].
• YES Replace the LED head.
Has the problem been corrected?
YES END
• NO Replace the engine PCB (S2V PWB).
Has the problem been corrected?
YES END
• NO Replace the head shield cable.
Has the problem been corrected?
YES END
• NO Check the cable connection, then replace the low voltage power unit.
Has the problem been corrected?
YES END
• NO Is +24V output to the HVOLT connector Pin 16 of the Engine PCB (S2V PWB)?
NO Replace the engine PCB.
• YES Check the cable connection, then replace the high voltage power unit or belt unit.
Has operation been restored?
YES END
• NO Is the I/D unit terminal properly connected to the contact Assy?
(Refer to Figure 7-3)
NO Properly connect the I/D unit terminal to the contact Assy.
• YES Replace Image Drum Unit.
Note! 1. When replacing the Engine PCB (S2V PWB), remove the EEPROM from the old
PCB, then mount that EEPROM on the new PCB.
2. If the EEPROM is not going to be replaced, refer to Section 5.2.2.

Jun 13, 2014 | OKI C9600hdn Laser Printer

1 Answer

MX 351U SHOWING E7-90 ERROR CODE WHAT THE SOLUTION


This is a PCU PCB Communication error. 9 times out of ten it will reset by simply switching the machine off and then on again. If the problem persists here is the section from the manual that describes the possible causes and remedies.

E7-90
MFP - PCU PWB communication error
Trouble content
Detail
MFP
Cause
PCU PWB connector connection trouble. PCU PWB - MFP PWB connection trouble. PCU PWB trouble.
MFP PWB trouble.
Mother board trouble.
Check & Remedy
Check connection of the PCU PWB, the MFP PWB, and the mother board.
Check the ground.
Replace the PCU PWB.
Replace the MFP PWB. Replace the mother board.
I hope this helps

Good Luck

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Jan 14, 2014 | Sharp Office Equipment & Supplies

1 Answer

Part number 610 332 8126 ASSY,PWB,MAIN KE3A


You can try to find this part at MGM electronics on the internet.

Jun 20, 2012 | Sanyo Office Equipment & Supplies

1 Answer

How do I remove the scanning glass in order to clean it from the inside?


For some reason my scanner over the years has developed a film/residue from the off gassing of the plastic etc. on the underside of the glass. Even though it did not seem to affect the quality of a scan, it was something that should not be present.

Here are the steps that I went though to accomplish that....

1) lock the lamp (switch on the bottom)
Very good idea.

2) open the lid and at the hinge end there are 3 screws (2 are recessed) & another screw in the middle.remove the 2 screws that are recessed (The one in the middle can remain in place.)

Warning: This cable is attached to a little PCB that has two connectors. It is best that you remove the cable on the scanner base side, since it is easier to re-insert back into the connector.

Note: That there are slots in the PCB that are to align with slots in the plastic that make up the base (will talk to this later).

3) After removing the two screws, the tricky part starts - the lid and glass and framing around the glass ( 3

sides) can slide out toward the back (toward the screws (that you just removed), lid hinges). This should Only

slide out approx 0.75in before the glass & frame are free of the bottom assy.
Note: the glass continues under the front bezel for approximately 0.75" 18-19mm. This is the reason that you are required to slide the assy. off the base.

Note: near the hinges the lid assy. is rather flexible so the following is possible. This sliding process that I & the previous writer write about is extremely hard. What I did was to take a very wide flat screw driver and used it as a pry bar.

Note: that there are tabs that have to clear the opening that you create when trying to insert the flat screw driver.
This enabled me to get a great deal of mechanical advantage over the process. I placed the scanner on it side

with the bottom facing me. Then I placed the tip of the screw driver against the hinge ( inside the scanner, part of the lid assy.) and used the base where the hinge is normally located (when assembled) as the pivot point.

Note: Go from one hinge point to the other and continue to use this method until the lid assy. is free.

Note: I only slid the lid assy. out approx. 1/8" or 3mm or less before going to the other hinge & repeating the process.

Note: after the lid w/glass assy. is free pivot the whole assy. at the hinge side to gain access to the base cable & disconnect it from the PCB.

Warning: The cable from the base to the lid (PCB) needs to be disconnected since there is not a great amount of free length of cable to work with and this cable is a great deal easier to reconnect during re-assembly than the one from the lid.

4) At this point the glass & lid assy. are free of the base assy.

5) clean the glass. It is glass, so one can use isopropol alcohol or distilled water.
Use a lent free cloth and make sure all the dirt, and deposited vapor/off gassing is cleaned off.

6-9) Reverse steps 4 through 1 to reassemble.
Note: I did not reverse those steps since it was not necessary. What I did was at a very slight angle slide the glass under the front bezel.
Note: I first made sure that the cables (lid & base) were connected to the PCB, & as I was sliding the lid assy. into position. I also made sure that the PCB slots were properly aligned to the plastic slots in the base assy.

Note: I did not worry about if the clips on each side were engaging or not. This enable me to make sure that the cables were attached & that the PCB was positioned properly. After everything looked good I pressed the Lid assy. & base together so as to engage the clips on both sides. This does not require a great amount of force/pressure to accomplish.

Warning: Do not forget to unlock (the slide switch for) the lamp.

10) Clean the top surface same as step 5 (prior to plugging it back in of course).


Hope this helps.

Mar 01, 2012 | Canon CanoScan 4400f MultiFunction Color...

1 Answer

000014-000 this the error code. When I turn the copier on ... it tries to start ... then this code come on and it says call a tech.


E014
000 After the fixing motor drive signal is generated, the clock signal does not
arrive within 3.0 sec.
Main cause The fixing motor (M19) is faulty. The DC controller PCB is faulty.
Action
1. Connector
Is the connector of the fixing motor connected?
NO: Connect the connector.
2. Main power supply PCB
Is the drive voltage (24 V) of the fixing motor supplied by the main power
supply PCB?
Main power supply PCB: between J202-3 (24VU1-S) and J202-4 (OVU1)
NO: Replace the main power supply PCB.
3. Fixing motor (M19), DC controller PCB
Press the Start key. Is the lock signal of the fixing motor present at the connector
(J312) on the DC controller PCB?
Lock signal: J312-B4 (FSRM_LOCK*)
the DC controller PCB change from 0 to about 5 V?
YES: Replace the fixing motor.
NO: Replace the DC controller PCB.


BUT FIRST: did you removed fixing assy from any reason? If you did try to repositioned it. Check for any foreighn matters inside or around the fixing assy. Try to reconect the fixing assy connectors. Check gears of fixing assy and drive assy.

Nov 18, 2009 | Canon (6981A002AA) for imagerunner 2200,...

1 Answer

Display scrambled on my model # LMVM2055ST


HI. this LCD is attached to the PWB assembly board. Unfortunately, this lcd is not sold separately and, you will need to replace the whole PWB assembly in order to fix this issue.This is actually a pwb(pcb) assembly failure.

CLICK HERE TO ORDER YOUR NEW PWB ASSEMBLY(LCD)

Jun 04, 2009 | LG Microwave Ovens

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