Hi, I'm Satake,you know. This time I am going to introduce JBL 4343. This is a king of monitor speaker. We have a pair of half broken 4343, and disassemble them. A tweeter does not work.
	This is woofer which is fixed by particular cramp.
4343 does not use solder. Black is minus.
	I took off MID. This is small room with glass wool.
This part is most tough to disassemble. It is better to do by two people. Units and board is too heavy. You need to remember the correct place each screw.
	This is inside. There are three piece of glass wool behind the driver. the inside of enclosure has many glass wool.
This hole is for tweeter. the inside of hole is rubber.
	Driver and horn. Driver is 2420.
This is tweeter. It is 2405. MID and woofer is 2121H and 2231A.
	I took off plate of JBL and attenuater.
It seemed products of ALPS.
	I took off the woofer. It is difficult to take off the back side board.
I took off network.
	Some solder were unconnected.
This is network.
This time, I'm kind of easygoing, because this 4343 is already broken. When I disassembled NS1000M, I am mentally exhausted. This time I'm very tired physically. I'm very satisfied to repair 4343. Please take this.