Panasonic FPX-C14R PLC teardown

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 PANASONIC FPX-C14R PLC TEARDOWN

Required tools:

* 2mm x 40mm Phillips screwdriver.

* 1.5mm flat screwdriver.

* Medium plastic screwdriver.

* Case opening plastic tool.

Remove 2 screws from the bottom with the Phillips screwdriver. Next, remove 4 plastic latches that keep together the upper and lower enclosure parts, there are 2 latches on each side. When possible use plastic screwdrivers to keep the enclosure as intact as possible, if there are no such tools available, improvise with the thinnest flat screwdrivers and work with silk hands! .

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PLC Panasonic FP-X C14 opening process

Now with the latches unlocked , proceed to remove the upper part, the CPU board is there. In the lower part remains I/O and Power Source boards.

I/O board can be released, pulling it from the screw terminals. To releas power source board, all 4 screws must be removed. They are located at the bottom four corners.

Finally to release CPU board from the upper case, Make a lever with a thin flat screwdriver and push with the plastic tool. Repeat this process with the remaining three latches.

Useful tip, leave a very thin screwdriver inserted in the opened latch to prevent lock again when opening the second latch.

PLC Panasonic FP-X C14 opening process

MOST IMPORTANT SEMICONDUCTOR LIST IN POWER SOURCE BOARD
Part # Description
P421F Infrared Optocoupler
C1093 Adjustable precision regulator
D3L20U Ultra fast recovery rectifier
TA7824S 3 Terminal 1A positve regulator
MIP0223SY Intelligent Power Device (IPD)
S1WB General purpose bridge rectifier

Power source board

PLC PANASONIC FP-X C14 POWER SOURCE BOARD

MOST IMPORTANT SEMICONDUCTOR LIST IN I/O BOARD
Part # Description
74LV541 8 Buffers with tri-state output
LMS8117AMP-3.3 Low Dropout 1A regulator
BD9701FP Ultra fast recovery rectifier
TA7824S Low power MOSFET switched regulator
M51945 Reset and voltage detection chip
M51957 Reset and voltage detection chip
APA3312 Slim power interface relay

I/O board.

 PLC PANASONIC FP-X C14 I/O BOARD

MOST IMPORTANT SEMICONDUCTOR LIST IN CPU BOARD
Part # Description
JAPAN D3107-246 MEW FPXV240 0709EP018 (ASIC) PLC microprocessor
65LBC176 Differential bus transceiver
74LV08 Quad 2 input AND gate
74LV14 HEX Schmitt-trigger inverter
ADM 3202 Low power RS-232 3.3v transceiver
74LV541 Oct buffer with tri-state output
74HC08 Quad 2 input AND gate
2G32 Double 2 input OR gate
2G08 Doble 2 input AND gate
2G125 Doble tri-state Buffer
2G00 Double 2 input NAND gate
7WH123 monostable multivibrator
62LV12816 128K x 16 CMOS static RAM
39VF040 5124K x8 CMOS multipurpose FLASH memory

CPU board

PLC PANASONIC FP-X C14 CPU BOARD

For a detailed view of the plc teardown, watch see the following video :