A Board - Sony FDL-250T Service Manual

FDL-250T
[
TUNER, ELECTRONIC TUNING,
A
– A Board –
]
VIF, SIF, POWER
C
B
C
E E
B
B
B
C
C
E
E
B
C
E
B E
C
C
B E
C
B E
< Component Side >
E B
C
C
B E
< Conductor Side >
E
C
B
E
C B
B C
E
E C
B B
C
E
E
C
B
E
C
B
E
C
B E
C
B E
– 12 –

A BOARD

DIODE
UPPER LOWER
D001 B-3
CN202
CN201
1 5V
1 BRT D002 A-2
2 2 BRT
-10V
D003
3 3 GND
D.GND
4 IND 4 AUDIO
D201 B-2
5 VHF 5 AUDIO
6 UHF 6 NC
D202 C-3
7 VIDEO 7 AUDIO
D501 A-1
8 A.GND 8 NC
9 5V 9 UNREG GND
D600
10 7.5V 10 AUDIO
11 A.GND
D601 B-2
12 30V
13 D.GND D602 B-2
14
H.P
D603 B-2
15
UNREG GND
16 UNREG GND
D604 B-2
17 UNREG
18 UNREG
D605 C-1
D606
D607 C-1
D609
TRANSISTOR
UPPER LOWER
Q001 B-3
Q002 A-3
Q003 B-2
Q004 B-2
Q005
Q006 A-2
Q007 A-2
Q008 B-2
Q010 B-3
Q011 B-3
Q012 B-3
Q201 B-3
Q202 C-3
Q203
Q600
Q601 A-1
Q602 C-2
Q604 C-1
Q605 C-1
Q801 B-2
Q803 B-3
IC
UPPER LOWER
IC001 A-3
IC201 C-3
IC501
IC600 C-2
VARIABLE RESISTOR
UPPER LOWER
RV001 B-3
RV002 B-3
RV003 B-3
RV004 B-3
RV201 B-3
RV601 B-1
UPPER : Component side
LOWER : Conductor side
*
9
7
3
B-2
5
3
7
3
B-1
5
5
5
5
7
3
A-1
C-1 -
3
B-1
*
2
@º
2
2
3
B-2
2
2
2
!ª
!¶
2
2
2
3
A-3
3
A-2
2
2
2
2
2
2
C-1