Sony CX-LFA880 / XR-FA880DVD Service Manual ▷ View online
29
29
CX-LFA880
CX-LFA880
7-12. PRINTED WIRING BOARD — AMP/PT SECTION —
•
See page 21 for Circuit Boards Location.
:Uses unleaded solder.
IC103
AC IN
110-120V
220-240V
VOLTAGE SELECTOR
AMP BOARD
PT BOARD
AMP BOARD
(AEP,AUS MODEL)
PT BOARD
(E,SP,MY MODEL)
*
NOT REPLACEABLE :
BUIL
T IN TRANSFORMER
*
NOT REPLACEABLE :
BUIL
T IN TRANSFORMER
POWER TRANSFORMER
POWER TRANSFORMER
SUB POWER TRANSFORMER
SUB POWER TRANSFORMER
AC IN
1
2
A
B
C
D
E
F
G
H
I
J
3
4
5
6
7
8
9
10
11
12
MAIN
BOARD
CN107
(Page 18)
MAIN
BOARD
CN103
(Page 18)
H
I
MAIN
BOARD
CN105
(Page 18)
E
HP
BOARD
CN201A
(Page 24)
K
E
E
MAIN
BOARD
CN301
(Page 18)
D
MAIN
BOARD
CN301
(Page 18)
D
FAN
• Semiconductor
Location
Ref. No.
Location
D101
C-3
D102
C-4
D103
C-4
D104
C-4
D311
D-3
IC103
D-4
Q101
C-10
Q102
C-10
Q103
C-9
Q104
C-9
Q105
C-10
Q301
C-9
Q303
C-9
Q304
B-10
Q308
C-10
Q309
D-11
Q310
D-11
Q311
E-3
Q312
D-2
Q314
C-11
• Semiconductor
Location
Ref. No.
Location
D901
I-6
D902
I-6
D903
J-6
D904
I-6
D905
J-5
• Semiconductor
Location
Ref. No.
Location
D901
I-11
D902
I-11
D903
J-11
D904
I-11
D905
J-11
(AEP, AUS MODEL)
(E, SP, MY MODEL)
30
30
CX-LFA880
CX-LFA880
7-13. SCHEMATIC DIAGRAM — AMP SECTION —
0
0
2.6
0
0
0
31.6
0
0
0
0
32.9
-32.8
-31.3
-1.0
0
0
-1.0
0
0
0.7
0
0
0
0
0.7
0
1.0
4.9
0
0
0
0
0
-5.2
4.9
-5.2
17.2
16.8
0
0
4.9
12.9
13.0
0
0
4.5
12.3
16.7
12.9
12.3
17.2
4.9
0
12.3
0
12.3
1.0
0
0.7
0.6
12.3
6.0
1.0
NO MARK : FM
TO MAIN
BOARD
CN107
(Page 20)
TO MAIN
BOARD
CN103
(Page 20)
HP BOARD
CN201A
(Page 25)
(TO FAN)
IC103
H
I
K
TO MAIN
BOARD
CN105
(Page 20)
E
AMP BOARD
560
560
POWER AMP
MUTE CONT
OVER LOAD
DETECT
DC PROTECT
FAN CURRENT
DETECT
FAN CURRENT
DETECT
Q350-Q352
FAN CONT
DC PROTECT
PROTECT SWITCH
SWITCH
SWITCH
+12V REG
+12V REG
DC PROTECT
Q103, Q104
OVER LOAD
DETECT
MUTE
MUTE
IC B/D
•
See page 18 of Supplement-1 for IC Block Diagram.
Ver. 1.1
31
31
CX-LFA880
CX-LFA880
7-14. SCHEMATIC DIAGRAM — PT SECTION (E, SP, MY MODEL) —
TO MAIN
BOARD
CN301
(Page 20)
FW901
D
*
*
Not replaceable : Built in transformer
POWER TRANS FORMER (MAIN)
POWER TRANS FORMER (SUB)
VOLTAGE SELECTOR
PT BOARD
(E, SP, MY MODEL)
32
32
CX-LFA880
CX-LFA880
7-15. SCHEMATIC DIAGRAM — PT SECTION (AUS, AEP MODEL) —
TO MAIN
BOARD
CN301
(Page 20)
D
FW901
*
*
Not replaceable : Built in transformer
POWER TRANS FORMER (MAIN)
POWER TRANS FORMER (SUB)
PT BOARD
(AUS, AEP MODEL)
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