Sony FDL-PT222 service manual T1 Board

T1 BOARD IC VOLTAGE LIST

	Pin	Volt		Pin	Volt	Pin	Volt
IC001	1	2.7		20	2.2	7	3.4
	2	0		21	2.9	8	GND
	3	0.3		22	0.8	9	4.3
	4	0.5		23	2.1	10	1.6
	5	2.5		24	2.1	11	1.6
	6	2.5		25	-	12	GND
	7	2.5		26	1.7	13	1.8
	8	4.3		27	3.8	14	3.5
	9	-		28	0	15	2.1
	10	0.7		29	GND	16	1.5
	11	2.5		30	0	17	2.4
	12	0		31	0	18	2.0
	13	0.3		32	0	19	1.9
	14	0.0	IC201	1	3.4	20	1.9
	15	3.7		2	3.4	21	3.4
	16	-		3	1.6	22	3.4
	17	-		4	3.3	23	0.4
	18	0		5	4.2	24	1.7
	19	2.2		6	3.4

T1 BOARD TRANSISTOR VOLTAGE LIST

	B	C	E
Q003	0	3.7	GND
Q004	3.7	0.7	4.3
Q007	2.6	0.5	4.3
Q201	1.0	4.2	0.3
Q202	1.9	GND	2.6
Q203	0	3.5	GND
	1	2	3	4	5	6
Q002	0	1.7	2.2	29.5	1.7	2.2

T1 BOARD

DIODE		*
D001	B-7	8
D002	B-2	7
IC
IC001	C-2
IC201	B-6
TRANSISTOR *
Q001	D-8	1
Q002	D-8	!•
Q003	B-8	1
Q004	B-8	1
Q007	B-2	2
Q010	D-10
Q011	D-7	!¶
Q012	D-7	1
Q201	D-6	2
Q202	B-3	1
Q203	D-4	1

VARIABLE

RESISTOR

RV001 B-3

RV002 B-3

RV004 B-3

RV201 B-3

T1 [ ELECTRONIC TUNRTR, VIF, SIF]

– T1 Board –
1	2	3	4	5	6	7	8	9
A
B
C
D
E		< Component Side >				< Conductor Side >

– 17 –

– 18 –