Icom IC-F21S service manual SW-A Unit, Q1 XP4216

12-2 SW-A AND SW-B UNITS
• SW-A UNIT
				S1	2	CP10	CBI0
						CP11	CBI1
			1	1
					3	CP12
				C 2	4		CBI2
				4
				8	5	CP13	CBI3
	TP76N00N-15F-10KA-2251					CP9	CBI0
						CP1	VOLOUT
	R1
						CP2	VOLIN
CP8	F1							RX (SQL OPEN) 4.8 V
						CP3	VCC
HV								TX	0 V
						CP4	RLED	TX	4.8 V
		Q1 XP4216				CP5	TLED	RX (SQL OPEN)	0 V
						CP6	GND
		1	6
		2	5
		3	4	RX (SQL OPEN) 0 V
				TX		4.1 V
		DS1		RX (SQL OPEN) 2.1 V
		LNJ107W5PRW
				TX		0 V
	RX (SQL OPEN) 4.1 V		G
	TX	0 V				R2 330
			R
						R3 560
			RX (SQL OPEN)			0 V
			TX			2.4 V
• SW-B UNIT

CHASSIS UNIT

2CH VERSION

S1

W1 W2

EMERGENCY VERSION

S1

	TP76N00N-15F-10KA-2251				CP9	CBI0
					CP1	VOLOUT
	R1
					CP2	VOLIN
CP8	F1						RX (SQL OPEN) 4.8 V
					CP3	VCC
HV
					CP4	RLED	TX	0 V
		Q1 XP4216			CP5	TLED	TX	4.8 V
		1	6		CP6	GND	RX (SQL OPEN)		0 V
		2	5
		3	4	RX (SQL OPEN) 0 V
		DS1		TX	4.1 V
		LNJ107W5PRW		RX (SQL OPEN) 2.1 V
	RX (SQL OPEN) 4.1 V		G	TX	0 V
	TX	0 V
			R		R2 330
					R3 560
			RX (SQL OPEN) 2.1 V
			TX		0 V
		12 - 2