I need a logic board for 42pf7320g/98 pcb code LJ41-03136a PBA code LJ92-01287

I'm assuming that you have a ColorWave 550. Error codes are usually 5 numbers, so the first error code I can't help you with. The 22531 has to do with the distribution PBA not getting the proper voltages. Unfortunately this could be a number of components. Either the AC switch, Distribution PBA, 24 Volt Supply or the I/O PBA. I would recommend calling and authorized service provider for this because the aforementioned boards are extremely expensive if you buy them yourself, considering you don't know which one to replace. The Oce Service Technician will be able to give you a better idea.

If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Line, faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent.

Hassan. It is better to make your own Question than tagging it to one from 10 years ago!

P98-934 : communication error between MCTL PCB and RF PCB, on RF PCB side. Translation: the rf reader in the drum did not communicate with the mechanical control board. First try turning off the machine and back on. Second try resetting with holding the reset key while turning on the machine.
Jun 24, 2015

Riso EZ220ui error P98-934 - Copytechnet

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A strange fault that I come ac cross till now. Please contact the authorized service center for Philips. Be remember, the brand is Philips. Never do any experiment with this set.
Gopakumar Gopalan Google

There is no other source from you can buy it, except the authorised service center for Philips. Just contact them.

A 2 Blink error code is a 15V SOS. Either your D board ( logic pcb ) is bad, or you aren't getting your 15V from the power supply. Check the 15V line from the porwer supply to the logic board. if the 15V are there then you need to replace the D board. If they are not, then your power supply is at fault.

okay. Solution pertains to device errrors 22 thru 25.
step 1: Is the cable from the fuser firmly connected to the Low Voltage Power Supply at (CN3), between the mother PBA (Cn24) and the Main PBA (Cn12)?

step 2: Is cable from fuser firmly connected to the mother PBA (CN4) between mother PBA (CN25) and the Main PBA (CN13)
step 3: if connections seem good and problem error code persists, replace in this order:
1. Fuser (call 888)690-7283 to order.
2. Low Voltage Power Supply
3. Main PBA
4. Mother PBA.

The problem is the LCD panel or the logic PCB (printed circuit board). you can find the logic pcb attatched via flat ribbon cables or small plugs. Good luck. The part number should be on the printed circuit board. I hope this helps.

20 times Other hardware error [6500] - Logic board ***'y (QM2-2670)*1

Its the small circuit board next to the carriage unit

You can get one for about $30 from this company web site.

www.euro-parts.it/download/slowmover_oct-2008.xls

You probably have to contact them directly to get your exact circuit board.

That error is an error processing on the main logic board, Canon suggests you replace the main logic pcb.