This page says they can send you a pdf of the datasheet upon request:
KC5324D-3D
Could be worth a try.
KC5324D-3D
Could be worth a try.
It looks to me like a fuse-programmable logic chip, de/en-coding something or other. The surrounding wire jumpers and almost complete lack of analog components points that way, too, as does the socket.
In short, you are stuffed without knowing the programming. These can be reverse engineered, if you are a complete masochist.
What does the pcb do?
In short, you are stuffed without knowing the programming. These can be reverse engineered, if you are a complete masochist.
What does the pcb do?
The close up picture looks great but it would help if you mention what make and model of equipment this IC is used.
Another picture of the whole board would also be great in figuring out what it is.
Another picture of the whole board would also be great in figuring out what it is.
Thanks for uploading more pics.
The part in question is likely a microcontroller with built-in oscillator. With that being said it will contain a custom firmware.
Is the part suspected to be faulty? It's not normal for a mass-produced item to have all its ICs in a socket, I'm guessing the sockets are not factory original.
The part in question is likely a microcontroller with built-in oscillator. With that being said it will contain a custom firmware.
Is the part suspected to be faulty? It's not normal for a mass-produced item to have all its ICs in a socket, I'm guessing the sockets are not factory original.
Digging in my junk box for parts, I found out a very old similar device which uses a pair of encoder/decoder as MC145026P/SC41343P (DIP 16), the datasheet found in the net.
So the unknown KCxxxx ICs (DIP 18) seems to be pairs in remote control applications as the found above.
Can be replaced? I don't know...
So the unknown KCxxxx ICs (DIP 18) seems to be pairs in remote control applications as the found above.
Can be replaced? I don't know...
The only replacement is another unit, if not then you need the custom firmware, an MCU programmer and a blank MCU.
Before you go that route, check if both Rx and Tx MCUs are getting their supply (+5V?), then confirm if the remote is transmitting, the receiver is getting the signal and pulses to be decoded are being fed into the receiver MCU. You need at least a 1MHz scope to do this.
A bit of a warning, use an isolation transformer for the mains unit when troubleshooting!
Before you go that route, check if both Rx and Tx MCUs are getting their supply (+5V?), then confirm if the remote is transmitting, the receiver is getting the signal and pulses to be decoded are being fed into the receiver MCU. You need at least a 1MHz scope to do this.
A bit of a warning, use an isolation transformer for the mains unit when troubleshooting!
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