Schematic Diagram - Center Sw Amp Board - Sony HCD-FL3 Service Manual

8-27. SCHEMATIC DIAGRAM – CENTER SW AMP Board –
C551
10 R551
50V 1k
C552
470p
NO802
9P
SW
SW GND
CENTER
CENTER GND
PB-R
REC-R
A-GND
(Page 51) PB-L
REC-L
C502
470p
C501
10 R501
50V 1k
C553
100p
R554
R552 47k
47k
Q523
2SC1841
R511 STANDBY
100
SWITCH
C522
R553 47 50V
1k R512
100
C554
R519
100 C508 C507
22k
10V 22 22
100V 100V
C520
1000p
C504
22
50V
R503
680
R502
47k
R504
47k
C503
100p
POWER AMP
IC501
STK442-130
R591
100k
R520
1 R592
100k
Q521,522
STANDBY SWITCH
R555 R556
0.22 0.22
R521
5W 5W
2.2k
Q521 R522
R557 2SA988 22k
1k
R525
2.2k
R558
Q522
15k
Q551 2SC1841
2SC1841
R527 OVER LOAD
33k
DETECT
D552
1SS133T
R523
D521 68k
1SS133T
C521
R528 R524 R526
47
15k 5.6k 2.2k
100V
D501 D502
1SS133T 1SS133T
R510
10
1/2W
R508
Q501
15k
2SC1841
OVER LOAD
R507 C506
1k 0.1
DETECT
C505
0.1
R506
0.22
5W
R505
0.22
5W
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER
57 57
D591
RECT D591
D15XB20 3
1 4
C593 C591
2200 0.1
2
63V 100V
C594 C592
2200 0.1
63V 100V
R560
C555 C556
10
0.1 0.1
1/2W
D921
D921
3
D3SBA20
RECT C921
0.01
1 4
C923 C922
3300 0.01
2
25V
I O
G
IC922
TA7809S
C927 +9V REGULATOR C928
10 100
50V 10V
JW501
The components identified by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specified.
HCD-FL3
NO702
8P
AC2(VH)
AC2(VH)
AC GND
AC GND
AC2(VH)
AC2(VH)
AC3(MOTOR)
(Page 71)
AC3(MOTOR)
CN502
12P
SW
SW
SW GND
SW GND
CENTER
CENTER
CENTER GND
CENTER GND
POWER GND
POWER GND
(Page 61)
STK MUTE
OVER LOAD
CN503
10P
M-GND
M+9V
UNREG GND
UNREG(M)
A-GND
PB-R
REC-R
A-GND
PB-L
(Page 60)
REC-L