Read Sony HCD-VX222 / MHC-VX222 Service Manual online
35
35
HCD-VX222
6-14. SCHEMATIC DIAGRAM – POWER AMP SECTION –
Q504
Q501
Q551
Q503
C542
C592
C541
C591
C501
C503
C511
C543
R501
R502
R512
R561
CN501
R505
R506
D501
D502
R507
C507
C508
D551
D542
D543
C545
C544
C551
R551
C553
C554
C559
R552
R581
R582
R514
R515
R516
R517
R556
R557
C557
C558
R559
C509
R511
EP502
Q581
R509
R513
R519
R510
R508
R558
R560
R555
R541
R591
D541
CN502
CN503
R518
R503
C504
C502
C552
R553
R554
R593
R592
R504
2SC1841
2SC1841
2SC1841
2SA988
2200
50V
2200
50V
0.1
100V
0.1
100V
10
50V
100p
0.01
0.1
1k
56k
1
1/4W
100
1/4W
1k
15k
1SS133T
1SS133T
100k
0.068
0.068
1SS133T
11ES2
11ES2
3300
35V
1000
25V
10
50V
1k
100p
22
25V
22
50V
56k
33k
33k
2.2k
22k
10k
2.2k
15k
100k
0.068
0.068
10
1/2W
22
50V
100
1/4W
2SC1841
10
1/2W
22k
22k
0.22
2W
0.22
2W
0.22
2W
0.22
2W
1k
22k
1/2W
22k
1/2W
D5SBA204101
13P
13P
10k
1.2k
22
25V
0.001
0.001
1.2k
56k
0.1
1/4W
0.1
1/2W
56k
+VCC
PRE
BIAS
+VCC
-VCC
CH1 IN
CH1 NF
CH1 +VE
CH1 -VE
CH2 +VE
CH2 -VE
PRE -VCC
SUB GND
CH2 NF
CH2 IN
PROTECTOR
L OUT
R OUT
A GND
+12V GND
REG+12V
FAN ON
EVER +5V
D GND
STK MUT
VF
VF
-B
VP
L OUT
R OUT
SP GND
SP GND
PW GND
AC4
AC4
AC3
AC3
AC4
AC4
AC3
AC3
VF
VF
VP
D GND
EVER +5V
STBY RELAY
STBY RELAY
AC1
GND
AC1
IC501
POWER AMP
(CHASSIS)
MUTE
DRIVER
BUFFER
MUTE
Q503,504
PROTECTION
PROTECTION
STK402-0705(1/2)
IC501
STK402-0705(2/2)
BOARD
TRANS
MAIN
MAIN
BOARD(5/5)
BOARD(5/5)
CN402
(Page 33)
CN403
(Page 33)
CN915
(Page 39)
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