Read Sony BMZ-K7D / CX-BK7 Service Manual online
CX-BK7
72
72
7-35. 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.
C505
R562
R558
R564
C522
R560
R561
C518
Q526
Q527
Q525
C521
R559
C517
R556
C520
R554
R555
C519
R553
R090
R548
R544
R542
R540
R546
R536
R532
C510
R538
R530
D502
D504
C512
C508
Q522
Q524
C506
D506
C026
R065
R520
R518
R526
R534
Q516
Q514
R516
Q508
R524
R522
Q510
Q013
R567
C536
R502
R504
R508
R506
R510
C502
R547
C511
D510
R539
R545
R537
R529
R531
C509
Q523
R527
Q515
R525
R535
R533
R517
R519
R566
R507
R505
C501
R509
C524
R575
C575
R576
R574
EP502
R514
R512
R503
R501
C537
R515
Q513
R521
R523
Q509
Q507
R565
Q505
R511
R513
D509
Q521
D501
D503
R541
R543
R066
R067
D020
C025
R068
Q012
R037
R591
R592
R035
R036
CN502
CN504
RY501
D511
Q530
Q531
Q533
Q534
Q532
Q506
R568
R528
R550
C514
C513
R549
C507
D507
Q517
D505
Q511
D508
Q512
Q518
R557
100p
100V
100V
1M
1k
0
1
50V
3.9k
27k
2.2
50V
50V
2SD1306
NE 07-TL
NE 07-TL
2SA1235
2SD1306
NE 07-TL
1
50V
3.9k
2.2
50V
50V
56k
820p
27k
56k
820p
27k
10k
27k
2.2k
2.2k
10k
100
100
1.5k
820p
1k
4.7k
1SS181-TE85L
1SS184-TE85L
33
50V
100p
100V
100V
2SC3052F
-T1-LF
2SC3052F
-T1-LF
100p
100V
100V
AU-01Z
0.0047
10k
39
39
1k
100
2SC2713G
-TE85L
2SC2910ST
-TP
220
2SC3052F
-T1-LF
2.2k
1.8k
2SC3052F
-T1-LF
2SA1163G
-TE85L
47k
0.1
50V
50V
0.22
3W
0.22
3W
1.8k
100
2.7k
0.01
27k
33
50V
1SS181-TE85L
10k
100
1k
4.7k
1.5k
820p
2SC3052F
-T1-LF
47k
2SC2713G
-TE85L
1k
100
100
39
39
47k
1.8k
100
0.01
2.7k
0.1
10k
0.1
10k
22
6.8k
1k
0.22
3W
0.22
3W
0.1
50V
50V
220
2SC2910ST
-TP
1.8k
2.2k
2SC3052F
-T1-LF
2SC3052F
-T1-LF
47k
2SA1163G
-TE85L
1k
6.8k
1SS184-TE85L
2SC3052F
-T1-LF
1SS181-TE85L
1SS184-TE85L
2.2k
2.2k
33k
47k
1SS184-TE85L
0.0068
10k
2SC2713G
-TE85L
5.6k
68k
15k
22k
22k
11P
5P
1SS355TE-17
2SC3052F
-T1-LF
2SD2439-OPY
2SB1588-OPY
2SB1588-OPY
2SD2439-OPY
2SA1163G
-TE85L
47k
47k
150
33
50V
33
50V
150
100p
100V
100V
1SS355TE
-17
HN4A06J-GRBL
TE85R
AU-01Z
2SC2910ST
-TP
1SS355TE
-17
2SC2910ST
-TP
HN4A06J-GRBL
TE85R
1k
A1
A2
A3
A4
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
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
L-IN
R-IN
GND
O-P0WER
RELAY SW
(1/2)
-1
-2
FRONT SPEAKER
RELAY DRIVE
ON/OFF
(CHASSIS)
OVER LOAD
DETECT
DRIVER
FINAL
Q531,533
DRIVER
FINAL
Q532,534
OVER LOAD
DETECT
Q507,509
BIAS
Q511,513,515
CASCADE
CASCADE
Q512,514,516
BIAS
Q508,510
MIRROR
CURRENT
Q522,524
PRE DRIVE
MIRROR
CURRENT
PRE DRIVE
Q521,523
-1
-2
-1
-2
OVER LOAD
PROTECT
MUTING
MUTING
CONTROL
SWITCH
MUTING
PROTECT
POWER
(Page 68)
(Page 73)
(Page 77)
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