DOWNLOAD Harman Kardon BDS 280 (serv.man6) Service Manual ↓ Size: 7.51 MB | Pages: 87 in PDF or view online for FREE

Model
BDS 280 (serv.man6)
Pages
87
Size
7.51 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
bds-280-sm6.pdf
Date
PREV: Harman Kardon BDS 280 (serv.man5) EMC - CB Certificate

Harman Kardon BDS 280 (serv.man6) Service Manual ▷ View online

KEY5
KEY3
KEY1
K5
K5
K1
K1
XP501
5pin/1.0mm
XP501
5pin/1.0mm
2
2
4
4
3
3
1
1
K3
K3
7-4
7-4
Key Board Circuit Diagram:
Harman Kardon
BDS 280 + 580 Service Manual
Page 41 of 87
A
A
B
B
C
C
D
D
1
1
2
2
3
3
4
4
VCLK
VCLK_1
VDIN_1
VSTB_1
VSTB
VCLK
VDIN
VSTB
VDIN
VFD_RST
F-
38V
F+
F-
VCC_D
VFD_RST
OSC_N
38V
F+
VH_N
VH_N
OSC_N
VDD_3.3V
VCC_D
VCC_D
12V
VCC_D
VDD_3.3V
VFD_RST
VCLK_1
VDIN_1
VSTB_1
R
728
270
R
728
270
Q644
N_2N7002
Q644
N_2N7002
G
D
S
C777
0.01uF/50V/Y5V
C777
0.01uF/50V/Y5V
D702
1N4148
D702
1N4148
R675 10
R675 10
R737
100
R737
100
C667
NC/0.1uF/50V/Y5V
C667
NC/0.1uF/50V/Y5V
Q615
NC/NPN_3DG3904M
Q615
NC/NPN_3DG3904M
C773 100pF/50V/NP0
C773 100pF/50V/NP0
R
696
270
R
696
270
Q636
NPN_MMBT8050C
Q636
NPN_MMBT8050C
L603
680uH/300mA
L603
680uH/300mA
R
688
270
R
688
270
Q638
NPN_MMBT8050C
Q638
NPN_MMBT8050C
R654
200
R654
200
C666
0.1uF/50V/Y5V
C666
0.1uF/50V/Y5V
C
768
N
C
/1800pF/
50V/
X7R
C
768
N
C
/1800pF/
50V/
X7R
R
638
N
C
/2.
2K
R
638
N
C
/2.
2K
+
100V10ȝF
CE620
+
100V10ȝF
CE620
R
723
10K
R
723
10K
D701
1N4148
D701
1N4148
R656
10
R656
10
R726
4.7K
R726
4.7K
Q614
NC/NPN_3DG3904M
Q614
NC/NPN_3DG3904M
R
646
NC/2
K
R
646
NC/2
K
R731
1K
R731
1K
R721
1.5K
R721
1.5K
R729
4.7K
R729
4.7K
R676 10
R676 10
R
742
NC/1
K
R
742
NC/1
K
ZD606
BZX79C39V
ZD606
BZX79C39V
C
767
N
C
/1800pF/
50V/
X7R
C
767
N
C
/1800pF/
50V/
X7R
C638
39pF/50V/NP0
C638
39pF/50V/NP0
ZD704
ZMM3V3/3.3V
ZD704
ZMM3V3/3.3V
C774 100pF/50V/NP0
C774 100pF/50V/NP0
R652
1K
R652
1K
+
100V10ȝF
CE618
+
100V10ȝF
CE618
U701
14-VFD162-XX0F-M
U701
14-VFD162-XX0F-M
CS
34
RESET
37
OSC
40
F-
1
TSB
26
TSA
29
DA
31
CP
32
VDD
43
VH
45
F+
51
GND
46
GND
48
R
732
820
R
732
820
C633
0.1uF/50V/Y5V
C633
0.1uF/50V/Y5V
C771 100pF/50V/NP0
C771 100pF/50V/NP0
R
725
10K
R
725
10K
R
664
NC/2
K
R
664
NC/2
K
R735
100
R735
100
Q639
NPN_MMBT8050C
Q639
NPN_MMBT8050C
R727
10K
R727
10K
Q641
NPN_MMBT8050C
Q641
NPN_MMBT8050C
Q643
NPN_MMBT8050C
Q643
NPN_MMBT8050C
C
769
N
C
/1800pF/
50V/
X7R
C
769
N
C
/1800pF/
50V/
X7R
Q613
NC/NPN_3DG3904M
Q613
NC/NPN_3DG3904M
+
CE619
100uF/6.3V
+
CE619
100uF/6.3V
R657
NC/0
R657
NC/0
R
639
NC/5
10
R
639
NC/5
10
+
CE617
220uF/16V
+
CE617
220uF/16V
R724
4.7K
R724
4.7K
R736
100
R736
100
R
710
270
R
710
270
R730
10K
R730
10K
R659
0
R659
0
C632
0.1uF/50V/Y5V
C632
0.1uF/50V/Y5V
C
665
0.
1uF/
50V/
Y5V
C
665
0.
1uF/
50V/
Y5V
R
640
NC2
K
R
640
NC2
K
C772 100pF/50V/NP0
C772 100pF/50V/NP0
C776
1000pF/50V/X7R
C776
1000pF/50V/X7R
R
653
N
C
/2.
2K
R
653
N
C
/2.
2K
R
637
N
C
/2.
2K
R
637
N
C
/2.
2K
Q637
NPN_MMBT8050C
Q637
NPN_MMBT8050C
R673
2K
R673
2K
Q640
NPN_MMBT8050C
Q640
NPN_MMBT8050C
R658
6.2K
R658
6.2K
R722
1.5K
R722
1.5K
Q642
NPN_MMBT8050C
Q642
NPN_MMBT8050C
R
641
NC/1
K
R
641
NC/1
K
C775 0.1uF/50V/Y5V
C775 0.1uF/50V/Y5V
7-5
7-5
VFD Control & Switch Board Circuit Diagram:
Harman Kardon
BDS 280 + 580 Service Manual
Page 42 of 87
A
A
B
B
C
C
D
D
1
1
2
2
3
3
4
4
TO MA BOARD
max 100ma
BT_TX
BT_RX
BT_SPDIF
VSTB_1
VDIN_1
VFD_RST
VCLK_1
VOL_RX
VOL_TX
IR_IN
BT_TX
BT_RST
BT_RX
BT_EN
NFC_FD
IR_IN
BT_EN
BT_RST
BT_SPDIF
NFC
PI03
3.3V_STB
NFC_FD
NFC
PI03
UPG
VCC_D
3.3V_STB
VCC
12V
3.3V_STB
BT_3V3
BT_3V3
BT_3V3
3.3V_STB
BT_3V3
PA06(TXD)
PA07(RXD)
VDIN_1
VFD_RST
VCLK_1
VSTB_1
UPG
R814
0
R814
0
D402
LL4148
D402
LL4148
TP503
TP503
R511
1
R511
1
C547
NC/0.1uF/25V/Y5V
C547
NC/0.1uF/25V/Y5V
R504
1K
R504
1K
U501
BT_BM153
U501
BT_BM153
AIO1
1
AIO0
2
RESET
3
GND
4
PIO9
5
PIO1 0
6
PIO11
7
PIO12
8
PIO13
9
PIO14
10
PIO15
11
GND
12
VDD
13
VDD_USB
14
+1V8
15
GND
16
USB_DP
17
USB_DN
18
UART_RTS
19
ART_CTS
20
UART_RX
21
UART_TX
22
PCM_IN
23
PCM_SYNC
24
PCM_CLK
25
PCM_OUT
26
SPI_CSB
27
SPI_MISO
28
SPI_CLK
29
SPI_MOSI
30
GND
48
MIC_A_N
47
MIC_A_P
46
MIC_B_N
45
MIC_B_P
44
MIC_BIAS
43
GND_S
42
SPK_R_P
41
SPK_R_N
40
SPK_L_P
39
SPK_L_N
38
GND
37
LED0
36
LED1
35
VDD_CHG
34
GND
33
VDD_BAT
32
VRE_IN
31
GND
60
RF
59
GND
58
PIO8
57
PIO7
56
PIO6
55
PIO5
54
PIO4
53
PIO3
52
PIO2
51
PIO1
50
PIO0
49
C
535
N
C
/100pF/
50V/
N
P0
C
535
N
C
/100pF/
50V/
N
P0
R502
2.2K
R502
2.2K
C
541
10pF/
50V/
NP0
C
541
10pF/
50V/
NP0
C543
0.1uF/25V/Y5V
C543
0.1uF/25V/Y5V
XP504
24PIN/0.5mm
XP504
24PIN/0.5mm
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
GND
25
GND
26
C
530
100pF/
50V/
N
P0
C
530
100pF/
50V/
N
P0
R512
NC/10K
R512
NC/10K
C551
0.1uF/25V/Y5V
C551
0.1uF/25V/Y5V
C544
10uF/10V/Y5V
C544
10uF/10V/Y5V
C
536
100pF/
50V/
N
P0
C
536
100pF/
50V/
N
P0
Q501
PNP_3CG3906M
Q501
PNP_3CG3906M
C555
10uF/10V/Y5V
C555
10uF/10V/Y5V
R503
10K
R503
10K
TP502
TP502
XP502
2PIN/1.25mm
XP502
2PIN/1.25mm
1
1
2
2
GND
3
GND
4
R506
4.7K
R506
4.7K
C
529
100pF/
50V/
N
P0
C
529
100pF/
50V/
N
P0
TP511
TP511
C
532
N
C
/100pF/
50V/
N
P0
C
532
N
C
/100pF/
50V/
N
P0
TP504
TP504
R513
10K
R513
10K
TP505
TP505
C548
NC/0.1uF/25V/Y5V
C548
NC/0.1uF/25V/Y5V
C
528
100pF/
50V/
N
P0
C
528
100pF/
50V/
N
P0
TP506
TP506
C
531
100pF/
50V/
N
P0
C
531
100pF/
50V/
N
P0
C545
0.1uF/25V/Y5V
C545
0.1uF/25V/Y5V
TP501
TP501
R550
0
R550
0
R811
0
R811
0
L501
400/200mA
L501
400/200mA
R505
220K
R505
220K
C549
NC/0.1uF/25V/Y5V
C549
NC/0.1uF/25V/Y5V
IR501
IRM_16mm
IR501
IRM_16mm
IR
1
GND
2
VCC
3
GND
4
GND
5
C
542
10pF/
50V/
NP0
C
542
10pF/
50V/
NP0
R514
10K
R514
10K
CON501
SMA/UFLR
CON501
SMA/UFLR
1
2
3
4
C
538
5pF/
50V/
N
P0
C
538
5pF/
50V/
N
P0
C
533
100pF/
50V/
N
P0
C
533
100pF/
50V/
N
P0
R509
0
R509
0
C546
NC/0.1uF/25V/Y5V
C546
NC/0.1uF/25V/Y5V
R
520
4.
7K
R
520
4.
7K
C
527
100pF/
50V/
N
P0
C
527
100pF/
50V/
N
P0
R812
0
R812
0
C550
0.1uF/50V/Y5V
C550
0.1uF/50V/Y5V
Q18
NC/NPN_3DG3904M
Q18
NC/NPN_3DG3904M
R523
0
R523
0
C
534
N
C
/100pF/
50V/
N
P0
C
534
N
C
/100pF/
50V/
N
P0
R810
0
R810
0
R508 NC/0
R508 NC/0
C539
NC/0.1uF/25V/Y5V
C539
NC/0.1uF/25V/Y5V
R510
0
R510
0
R813
0
R813
0
Q555
N_2SK3018
Q555
N_2SK3018
G
D
S
C552
4.7uF/16V/Y5V
C552
4.7uF/16V/Y5V
C554
10uF/10V/Y5V
C554
10uF/10V/Y5V
C
537
100pF/
50V/
N
P0
C
537
100pF/
50V/
N
P0
R507 10
R507 10
C
540
10pF/
50V/
NP0
C
540
10pF/
50V/
NP0
R501
33
R501
33
XP501
6PIN/2.0mm
XP501
6PIN/2.0mm
1
1
2
2
3
3
4
4
5
5
6
6
C
553
N
C
/100pF/
50V/
N
P0
C
553
N
C
/100pF/
50V/
N
P0
7-6
7-6
VFD Control & Switch Board Circuit Diagram:
Harman Kardon
BDS 280 + 580 Service Manual
Page 43 of 87
A
A
B
B
C
C
D
D
1
1
2
2
3
3
4
4
0.8*(47+15)/15=3.3v
PA02
PA01
3.3V_STB
PA03
PA00
PA06(
TXD)
PB01
PB00
PA10
PA12
PA05
PB06
PB03
PB02
PB12
PA03
PA11
PA19
PA13
PB08
PB07
PB09
PA04
PB10
PA03
PB03
PB02
PB00
PB12
PA00
PB05
PA01
+1
.8
V
+1
.8
V
PA14
PB07
PB08
PA04
PB09
PB06
PA02
PA12
3.3V_STB
PA05
PA10
3.3V_STB
PB11
PA18
PA17
PA19
PA15
PA16
PA00
PA07(RXD)
PA01
PA02
+1.8V
3.3V_STB
PB01
PB10
RST
PB04
PB05
PB11
PA18
PB04
PA22
KEY3
PA16
PA17
PA14
PA15
KEY1
KEY5
KEY5
PA09(XOUT)
PA08(XIN)
KEY1
KEY3
PA21
PA22
PA21
PA08(
XI
N)
PA09(
XOUT)
PA13
PA11
RST
UPG
VCC_D
VCC_D
VCC_D
3.3V_STB
VCC
3.3V_STB
3.3V_STB
UPG
PA06(
TXD)
PA07(RXD)
R190
NC/0
R190
NC/0
LED9
LED-WHITE
LED9
LED-WHITE
Q8
NPN_3DG3904M
Q8
NPN_3DG3904M
LED29
LED_AMBER
LED29
LED_AMBER
LED11
LED-WHITE
LED11
LED-WHITE
C38
NC/0.01uF/25V/Y5V
C38
NC/0.01uF/25V/Y5V
R
109
200
R
109
200
R
119
200
R
119
200
R9
7
4.
7K
R9
7
4.
7K
Q28
NPN_3DG3904M
Q28
NPN_3DG3904M
C24
NC/0.01uF/25V/Y5V
C24
NC/0.01uF/25V/Y5V
C37
NC/0.01uF/25V/Y5V
C37
NC/0.01uF/25V/Y5V
Y1
8MHz/30PPM
Y1
8MHz/30PPM
C35
NC/0.01uF/25V/Y5V
C35
NC/0.01uF/25V/Y5V
Q603
PNP_3CG3906M
Q603
PNP_3CG3906M
Q29
NPN_3DG3904M
Q29
NPN_3DG3904M
R159
10K
R159
10K
C406
0.047uF/50V/Y5V
C406
0.047uF/50V/Y5V
R7
8
4.
7K
R7
8
4.
7K
LED2
LED-WHITE
LED2
LED-WHITE
R8
3
4.
7K
R8
3
4.
7K
LED18
LED-WHITE
LED18
LED-WHITE
R8
7
4.
7K
R8
7
4.
7K
D401
LL4148
D401
LL4148
C502
20pF/50V/NP0
C502
20pF/50V/NP0
C28
NC/0.01uF/25V/Y5V
C28
NC/0.01uF/25V/Y5V
C
403
0.
1uF/
25V/
Y5V
C
403
0.
1uF/
25V/
Y5V
C501
20pF/50V/NP0
C501
20pF/50V/NP0
R95
1K
R95
1K
C155
0.
1uF/
25V/
Y5V
C155
0.
1uF/
25V/
Y5V
XP402
8PIN/2.0mm
XP402
8PIN/2.0mm
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
LED6
LED-WHITE
LED6
LED-WHITE
LED8
LED-WHITE
LED8
LED-WHITE
C26
NC/0.01uF/25V/Y5V
C26
NC/0.01uF/25V/Y5V
FB816
220/1200mA
FB816
220/1200mA
C
411
0.
1uF/
25V/
Y5V
C
411
0.
1uF/
25V/
Y5V
LED27
LED_AMBER
LED27
LED_AMBER
Q15
NPN_3DG3904M
Q15
NPN_3DG3904M
C43
NC/0.01uF/25V/Y5V
C43
NC/0.01uF/25V/Y5V
R9
6
4.
7K
R9
6
4.
7K
C
416
0.
1uF/
25V/
Y5V
C
416
0.
1uF/
25V/
Y5V
Q27
NPN_3DG3904M
Q27
NPN_3DG3904M
C
415
0.
1uF/
25V/
Y5V
C
415
0.
1uF/
25V/
Y5V
R7
7
4.
7K
R7
7
4.
7K
R
101
200
R
101
200
R6
8
4.
7K
R6
8
4.
7K
R
102
200
R
102
200
R
120
200
R
120
200
R9
1
4.
7K
R9
1
4.
7K
Q2
NPN_3DG3904M
Q2
NPN_3DG3904M
LED13
LED-WHITE
LED13
LED-WHITE
R125
1K
R125
1K
ATMEL AT32UC3L016
U401
ATMEL AT32UC3L016
U401
PB10
23
PA20
25
PA13
26
PA11
27
PA04
28
PB09
29
PB00
6
PB02
7
PB03
8
PA22
9
PA06
10
PA00
11
PA05
12
PA16
38
PA17
39
PA03
4
PA01
14
PA07
15
PB01
16
VDD
17
PA02
13
+1.8V
18
GND
19
PB05
20
PB04
21
PB07
31
PB08
32
GNDANA
33
ADVREEP
34
VDDANA
35
PA15
37
PA14
36
GND
43
VDDIO
42
PB06
30
PA18
41
PB12
5
PA12
47
RST
22
PA19
40
GND
45
PB11
44
PA09
2
GND
1
PA08
3
PA21
24
PA10
46
VDDIO
48
R191
0
R191
0
Q4
NPN_3DG3904M
Q4
NPN_3DG3904M
LED20
LED-WHITE
LED20
LED-WHITE
LED5
LED-WHITE
LED5
LED-WHITE
LED26
LED_AMBER
LED26
LED_AMBER
C41
NC/0.01uF/25V/Y5V
C41
NC/0.01uF/25V/Y5V
LED21
LED-WHITE
LED21
LED-WHITE
C82
2.
2uF/
10V/
Y5V
C82
2.
2uF/
10V/
Y5V
C20
NC/0.01uF/25V/Y5V
C20
NC/0.01uF/25V/Y5V
R6
6
4.
7K
R6
6
4.
7K
C156
0.
1uF/
25V/
Y5V
C156
0.
1uF/
25V/
Y5V
LED7
LED-WHITE
LED7
LED-WHITE
C405
0.047uF/50V/Y5V
C405
0.047uF/50V/Y5V
LED16
LED-WHITE
LED16
LED-WHITE
C39
NC/0.01uF/25V/Y5V
C39
NC/0.01uF/25V/Y5V
Q12
NPN_3DG3904M
Q12
NPN_3DG3904M
C36
NC/0.01uF/25V/Y5V
C36
NC/0.01uF/25V/Y5V
LED17
LED-WHITE
LED17
LED-WHITE
LED10
LED-WHITE
LED10
LED-WHITE
R
111
200
R
111
200
R192
1K
R192
1K
C
414
0.
1uF/
25V/
Y5V
C
414
0.
1uF/
25V/
Y5V
R8
4
4.
7K
R8
4
4.
7K
R9
0
4.
7K
R9
0
4.
7K
LED1
LED-WHITE
LED1
LED-WHITE
LED28
LED_AMBER
LED28
LED_AMBER
LED15
LED-WHITE
LED15
LED-WHITE
Q26
NPN_3DG3904M
Q26
NPN_3DG3904M
C33
NC/0.01uF/25V/Y5V
C33
NC/0.01uF/25V/Y5V
R
106
200
R
106
200
C27
NC/0.01uF/25V/Y5V
C27
NC/0.01uF/25V/Y5V
R
121
200
R
121
200
C83
10uF/10V/Y5V
C83
10uF/10V/Y5V
R
113
200
R
113
200
R606
150
R606
150
Q604
PNP_3CG3906M
Q604
PNP_3CG3906M
Q6
NPN_3DG3904M
Q6
NPN_3DG3904M
C23
NC/0.01uF/25V/Y5V
C23
NC/0.01uF/25V/Y5V
Q24
NPN_3DG3904M
Q24
NPN_3DG3904M
U3
TJ4203GSF5-ADJ
U3
TJ4203GSF5-ADJ
VIN
1
ADJ/SENSE
4
EN
3
VOUT
5
2
GND
K1
K1
R143
15K/1%
R143
15K/1%
C407
0.047uF/50V/Y5V
C407
0.047uF/50V/Y5V
FB815
220/1200mA
FB815
220/1200mA
LED31
LED_AMBER
LED31
LED_AMBER
R7
9
4.
7K
R7
9
4.
7K
LED3
LED-WHITE
LED3
LED-WHITE
C22
NC/0.01uF/25V/Y5V
C22
NC/0.01uF/25V/Y5V
R614
NC/150
R614
NC/150
R6
7
4.
7K
R6
7
4.
7K
R9
2
4.
7K
R9
2
4.
7K
Q7
NPN_3DG3904M
Q7
NPN_3DG3904M
C21
NC/0.01uF/25V/Y5V
C21
NC/0.01uF/25V/Y5V
Q25
NPN_3DG3904M
Q25
NPN_3DG3904M
XP507
5pin/1.0mm
XP507
5pin/1.0mm
1
1
2
2
3
3
4
4
Q1
NPN_3DG3904M
Q1
NPN_3DG3904M
C401 0.1uF/25V/Y5V
C401 0.1uF/25V/Y5V
R8
8
200
R8
8
200
C42
NC/0.01uF/25V/Y5V
C42
NC/0.01uF/25V/Y5V
C
413
0.
1uF/
25V/
Y5V
C
413
0.
1uF/
25V/
Y5V
Q11
NPN_3DG3904M
Q11
NPN_3DG3904M
C
402
0.
1uF/
25V/
Y5V
C
402
0.
1uF/
25V/
Y5V
R623
NC/100
R623
NC/100
R8
5
4.
7K
R8
5
4.
7K
R
127
10K
R
127
10K
C
412
10uF/
10V/
Y5V
C
412
10uF/
10V/
Y5V
R611
3.3K
R611
3.3K
R
107
200
R
107
200
R
122
200
R
122
200
R124
1K
R124
1K
R
110
200
R
110
200
R132
10K
R132
10K
C404
0.01uF/50V/X7R
C404
0.01uF/50V/X7R
R9
8
200
R9
8
200
R
117
200
R
117
200
C44
NC/0.01uF/25V/Y5V
C44
NC/0.01uF/25V/Y5V
Q13
NPN_3DG3904M
Q13
NPN_3DG3904M
R609
56
R609
56
Q14
NPN_3DG3904M
Q14
NPN_3DG3904M
R612
NC/3.3K
R612
NC/3.3K
R9
4
4.
7K
R9
4
4.
7K
LED19
LED-WHITE
LED19
LED-WHITE
C
408
0.
1uF/
25V/
Y5V
C
408
0.
1uF/
25V/
Y5V
R9
9
200
R9
9
200
Q20
NPN_3DG3904M
Q20
NPN_3DG3904M
R7
6
4.
7K
R7
6
4.
7K
C40
NC/0.01uF/25V/Y5V
C40
NC/0.01uF/25V/Y5V
Q5
NPN_3DG3904M
Q5
NPN_3DG3904M
C29
NC/0.01uF/25V/Y5V
C29
NC/0.01uF/25V/Y5V
R
123
200
R
123
200
R8
6
4.
7K
R8
6
4.
7K
C34
NC/0.01uF/25V/Y5V
C34
NC/0.01uF/25V/Y5V
R613
NC/3.3K
R613
NC/3.3K
R624
NC/100
R624
NC/100
R
112
200
R
112
200
R140
47K/1%
R140
47K/1%
C25
NC/0.01uF/25V/Y5V
C25
NC/0.01uF/25V/Y5V
Q10
NPN_3DG3904M
Q10
NPN_3DG3904M
R
100
200
R
100
200
R
108
200
R
108
200
R
118
200
R
118
200
LED25
LED_AMBER
LED25
LED_AMBER
LED12
LED-WHITE
LED12
LED-WHITE
C
409
0.
1uF/
25V/
Y5V
C
409
0.
1uF/
25V/
Y5V
R9
3
4.
7K
R9
3
4.
7K
R301
33
R301
33
LED4
LED-WHITE
LED4
LED-WHITE
C
410
0.
1uF/
25V/
Y5V
C
410
0.
1uF/
25V/
Y5V
R126
1K
R126
1K
R610
3.3K
R610
3.3K
R7
5
4.
7K
R7
5
4.
7K
C417
0.1uF/25V/Y5V
C417
0.1uF/25V/Y5V
Q3
NPN_3DG3904M
Q3
NPN_3DG3904M
LED30
LED_AMBER
LED30
LED_AMBER
R8
9
4.
7K
R8
9
4.
7K
LED14
LED-WHITE
LED14
LED-WHITE
7-7
7-7
VFD Control & Switch Board Circuit Diagram:
Harman Kardon
BDS 280 + 580 Service Manual
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