T1 Board - Sony FDL-PT222 Service Manual

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
– 17 –
T1
ELECTRONIC TUNRTR, VIF, SIF
– T1 Board –

T1 BOARD

DIODE
*
1
8
D001 B-7
7
D002 B-2
IC
IC001 C-2 A
IC201 B-6
TRANSISTOR
*
1
Q001 D-8
!•
Q002 D-8
1
Q003 B-8
1
Q004 B-8
2
Q007 B-2
B
Q010 D-10
!¶
Q011 D-7
1
Q012 D-7
2
Q201 D-6
1
Q202 B-3
1
Q203 D-4
VARIABLE
RESISTOR
C
RV001 B-3
RV002 B-3
RV004 B-3
RV201 B-3
D
E
2 3 4
< Component Side >
5 6 7 8
< Conductor Side >
– 18 –
9