Read Sony BMZ-K33 / CX-BK33 Service Manual online
CX-BK33
48
48
7-17. SCHEMATIC DIAGRAM – FRONT AMP Board (1/2) –
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
CN502
R505
R511
R035
R036
C524
R574
D511
R509
C537
Q507
Q509
R515
C507
C505
R519
R521
R523
R527
R517
R525
D507
R535
Q523
Q521
R531
C509
R541
R543
R539
R545
Q517
R529
R533
R553
Q525
R557
C521
C517
R547
C511
R513
R514
R506
C502
R510
R512
C508
C506
R516
R532
C510
R530
R522
R524
R528
Q522
R536
R534
C536
Q508
R526
R520
R518
R540
R546
R544
R542
R548
C512
C514
R554
C522
R558
Q526
R561
R562
R592
R037
R591
R067
R066
C026
R065
R068
C025
R090
EP502
C518
CN504
R575
R576
RY501
C575
R564
Q527
R550
R549
C513
R503
R501
C501
Q533
R537
R538
R504
R502
Q534
D508
Q518
Q530
Q524
Q510
R559
R555
R556
C520
C519
D510
D501
D503
Q531
Q513
Q511
D504
Q532
D502
R560
Q512
Q514
D020
R598
R596
R508
R597
R595
R507
D509
Q515
Q516
Q013
Q012
Q505
D505
D506
Q506
11P
100
1k
22k
22k
0.1
22
1SS355TE
-17
2.7k
0.1
50V
50V
2SC3052F-T
1-LF
2SC3052F-T
1-LF
220
100p
100V
100V
100p
100V
100V
39
1.8k
2.2k
47k
39
1k
1SS355TE
-17
100
2SC3052F-T
1-LF
2SC3052F-T
1-LF
1.5k
820p
2.2k
2.2k
10k
100
HN4A06J-GRBL
TE85R
4.7k
100
27k
2SD1306
NE 07-TL
1k
4.7
50V
50V
0.47
50V
27k
33
35V
6.8k
6.8k
100
0.01
2.7k
1k
100p
100V
100V
100p
100V
100V
220
1.5k
820p
4.7k
1.8k
2.2k
47k
2SC3052F-T
1-LF
100
100
0.1
50V
50V
2SC3052F-T
1-LF
1k
39
39
10k
100
2.2k
2.2k
27k
33
35V
22
50V
27k
4.7
50V
50V
1k
2SD1306
NE 07-TL
68k
1M
15k
5.6k
100k
47k
33k
4700p
10k
10k
6800p
10k
0.47
50V
5P
10k
10k
0.1
0
2SA1235
22
50V
0.22
3W
0.22
3W
0.01
0.22
3W
0.22
3W
1SS355TE
-17
HN4A06J-GRBL
TE85R
2SC3052F-T
1-LF
2SC3052F-T
1-LF
2SC3052F-T
1-LF
2.2k
22k
22k
2200p
2200p
MC2836
MC2836
MC2838
2SC3478
2SC3478
MC2838
MC2836
2.2k
2SC3478
2SC3478
MC2838
0.47
2W
0.47
2W
2.2k
0.47
2W
0.47
2W
2.2k
MC2838
2SD0814A
2SD0814A
2SB0792A
2SD0814A
2SB0792A
10EDB40
10EDB40
2SB0792A
A1
A2
A3
A5
A6
A7
A8
A9
A10
A11
A12
A13
A
14
A15
*
*
(CHASSIS)
L-IN
R-IN
GND
O-P0WER
RELAY SW
IN-R
AMP-A-GND
IN-L
O-POWER
AMP-A-GND
MUTE
POWER MONITOR
AMP-A-GND
AMP-A-GND
SYSTEM-MUTE
MIXOUT-LR
(1/2)
-1
-2
MUTING
MUTING
CONTROL
MUTING
*
(AEP,UK)
R549,550
470
PRE DRIVE
-2
-1
CASCADE
Q511,513,515
Q521,523
CURRENT
MIRROR
Q531,533
FINAL DRIVE
(AEP,UK)
2SD2562
FN1016
OVER LOAD
DETECT
(AEP,UK)
Q507,509
BIAS
1k 1/2W
1k 1/4W
1k 1/2W
1k 1/4W
PRE DRIVE
-2
-1
BIAS
Q508,510
(AEP,UK)
FINAL DRIVE
Q532,534
(AEP,UK)
2SD2562
FN1016
OVER LOAD
DETECT
CASCADE
Q512,514,516
CURRENT
MIRROR
Q522,524
DETECT
OVER CURRENT
HOLD
DRIVE
RELAY
FP1016
FP1016
330 (E51)
(E51)
(AEP,UK)
(E51)
(E51)
(E51)
(AEP,UK)
2SB1649
(E51)
(E51)
2SB1649
(E51)
(E51)
(Page 44)
(Page 49)
(Page 54)
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