B and K 50-S-2, Reference 50, Reference 50 Mk2 Schematic
Reference 50 S2
SERVICE MANUAL
B&K COMPONENTS, LTD.
2100 Old Union Road
Buffalo, New York 14227-2725
U.S.A.
6FKHPDWLFV
B&K COMPONENTS, LTD.
2100 Old Union Road
Buffalo, New York 14227-2725
U.S.A.
54321
U10 CS3310
9
AIR
16
AIL
7
SDATAO
3
SDATAI
6
SCLK
2
CS
8
MUTE
1
ZCEN
U11 CS3310
9
AIR
16
AIL
7
SDATAO
3
SDATAI
6
SCLK
2
CS
8
MUTE
1
ZCEN
U12 CS3310
9
AIR
16
AIL
7
SDATAO
3
SDATAI
6
SCLK
2
CS
8
MUTE
1
ZCEN
U22 CS3310
9
AIR
16
AIL
7
SDATAO
3
SDATAI
6
SCLK
2
CS
8
MUTE
1
ZCEN
C24
AOUTL
AOUTR
DGND
AGNDL
AGNDR
AOUTL
AOUTR
DGND
AGNDL
AGNDR
AOUTL
AOUTR
DGND
AGNDL
AGNDR
AOUTL
AOUTR
DGND
AGNDL
AGNDR
VDD
.1uF
+5
C18
.1uF
12
VA+
4
VD+
Lf_W
14
11
Rf_W
5
15
10
13
VA-
C17
.1uF
-5
C25
.1uF
VDD
+5
C21
.1uF
12
VA+
4
VD+
14
C_W
11
Lx_W
5
15
10
13
VA-
C20
.1uF
-5
C26
VDD
.1uF
C23
+5
.1uF
12
VA+
4
VD+
14
Lr_W
11
Rr_W
5
15
10
13
VA-
C22
.1uF
-5
C75
VDD
.1uF
C74
+5
.1uF
12
VA+
4
VD+
14
Rx_W
11
Sub_W
5
15
10
13
VA-
C73
.1uF
-5
R36
1.5K
Q16
BC850CL
+15
Z2_A_Out_R
Z2_A_Out_L
-15
+15
RX
LX
RF
LF
CENTER
RR
SUB
LR
D3
LL4148
JP6
39 40
37 38
35 36
33 34
31 32
29 30
27 28
25 26
23 24
21 22
19 20
17 18
15 16
13 14
11 12
9 10
7 8
5 6
3 4
1 2
HEADER 2X20
98
98
98
98
Z2_A_Out_R
Z2_A_Out_L
-15
CENTER
143
5 12
143
5 12
143
5 12
143
5 12
+15
RX
LX
RF
LF
RR
SUB
LR
LR
16
RL1
HAS212-05
1
SUB
RR
16
RL2
HAS212-05
1
LF
CENTER
16
RL3
HAS212-05
1
RF
LX
16
RL4
HAS212-05
1
RX
Rf_W
Rr_Dmx
C_Dmx
Sub_Dmx
Lf_W
Lr_Dmx
C_Dmx
Sub_Dmx
Sub_Out
C_Out
Rr_Out
Lr_Out
Rx_Out
Lx_W
R33
10K
R29
10K
R22
15K
R45
10K
R42
10K
R28
10K
R27
15K
R46
10K
R1731KR1741KR156
1K
R47
10K
R50
10K
R192
1K
R51
R52
10K
R193
1K
R41
10K
R152
10K
+15
C15
.1uF
U2A
84
AD712
3
1
LF
2
R26
10K
C16
C65
.1uF
-15
330pF
+15
C76
.1uF
84
3
1
CTR
2
U23A
AD712
R43
10K
C77
C67
.1uF
-15
330pF
+15
10K
C29
.1uF
84
3
1
LR
2
U4A
AD712
R49
10K
C30
C92
.1uF
-15
330pF
U23B
AD712
5
7
LX
6
R105
10K
C95
330pF
Title
C
Date: 28-Jun-2004 Sheet of
File: C:\BK_Data \Series_4\ Series_III_Ne w_Mains\13783-00.ddbDrawn By:
U2B
AD712
5
7
RF
6
R23
10K
C66
330pF
+15
C27
.1uF
U3A
84
AD712
3
1
SUB
2
R44
10K
C28
C68
.1uF
330pF
-15
U4B
AD712
5
7
RR
6
R48
10K
C93
330pF
U3B
AD712
5
7
RX
6
R96
10K
C94
330pF
Ref Series III S2 Bass Management
Number RevisionSize
B&K p\n 13783-0B
C36
VDD
AOUTL
AOUTR
AGNDL
AGNDR
ZONE 2 VOLUME
R108
10K
R111
10K
R38
1.5K
C35
DGND
VA+
VD+
R150
47.5K
R151
47.5K
.1uF
+5
.1uF
12
4
R93
221
14
11
5
15
10
13
VA-
+15
84
3
S_Inv
2
-15
5
Rx_Inv
6
Z2_A_Out_L
Z2_A_Out_R
R94
221
C34
.1uF
-5
U27A
LF353
1
Sub_Gain
R106
10K
U27B
LF353
7
Rx_Gain
R109
10K
R175
24.3K
R176
24.3K
Rf_VOL
Lf_VOL
SPI_D_4
SPI_D_3
SPI_Clk
~Vol_En
~Vol_Mute
Lx_Aud
C_VOL
SPI_D_3
SPI_D_2
SPI_Clk
~Vol_En
~Vol_Mute
Rr_VOL
Lr_VOL
SPI_D_2
SPI_D_1
SPI_Clk
~Vol_En
~Vol_Mute
Sub_VOL
Rx_VOL
SPI_D_4
SPI_Clk
~Vol_En
~Vol_Mute
VDD
VDD
VDD
VDD
Z2_A_Out_L
Z2_A_Out_L
Z2_A_Out_R
Z2_A_Out_R
LF
LF
RF
RF
CENTER
CENTER
SUB
SUB
LR
LR
RR
RR
LX
LX
RX
RX
TAP_A_Out_L
TAP_A_Out_L
D
C
B
A
TAP_A_Out_R
V2B_L
V2B_R
V2_L
V2_R
Lt_Aud
Rt_Aud
Lx_Aud
Rx_Aud
Sub_Aud
C_Aud
Lr_Aud
Rr_Aud
Lf_Aud
Rf_Aud
Sub_VOL
C_VOL
Rr_VOL
Lr_VOL
Rf_VOL
Lf_VOL
Rx_VOL
Aud_I_Det
Aud_O_Det
~Vol_Mute
~Vol_En
SPI_Out
SPI_Clk
SPI_Qout
SPI_Qclk
M1_En
M2_En
~Sel_Rst
~Z2_Rly_En
~Z1_Rly_En
R143
1.5K
R144
1.5K
TAP_A_Out_R
V2B_L
V2B_R
V2_L
V2_R
Lt_Aud
Rt_Aud
Lx_Aud
Rx_Aud
Sub_Aud
C_Aud
Lr_Aud
Rr_Aud
Lf_Aud
Rf_Aud
Sub_VOL
C_VOL
Rr_VOL
Lr_VOL
Rf_VOL
Lf_VOL
Rx_VOL
Aud_I_Det
Aud_O_Det
~Vol_Mute
~Vol_En
SPI_Out
SPI_Clk
SPI_Qout
SPI_Qclk
M1_En
M2_En
~Sel_Rst
R153
1K
MISC Z2 AUDIO SELECTOR
LC7821
U15
V2B_L V2B_R
Lt_Aud Rt_Aud
Z2_L_VOL Z2_R_VOL
Lr_Dmx
Lr_Out
Lr_W
C_Dmx
C_Out
C_W
M1_En
SPI_Qout
SPI_Qclk
~Sel_Rst
ZD7
1N963
R154
1K
Q10
BC860CL
R122
10K
1 2 3 4 5 6
L11R1
2
L2
3
L3
4
L4
5
LCM1
6
L5
7
L6
8
LCM2
9
L7
10
L8
11
LCM3
12
VEE
13
CE
14
DI
15
CLK
C55
.1uF
+15
R145
1.5K
W20
GND
R95
47.5K
Q9
R2
R3
R4
RCM1
R5
R6
RCM2
R7
R8
RCM3
VDD
RST
S
VSS
R123
10K
+15 -15
+15W9-15
W7
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
BC860CL
V2_RV2_L
Rr_Dmx
Rr_Out
Rr_W
MISC SUB AUDIO SELECTOR
U24
Sub_G1 Rx_G 1
L11R1
Sub_G2
2
L2
3
Sub_G3
L3
Sub_G4 Rx_G 4
4
L4
5
Sub_W Rx_W
LCM1
Sub_Dmx
6
L5
Sub_Out
7
L6
Sub_Gain
8
LCM2
9
L7
10
L8
11
LCM3
+15-15
12
VEE
M2_En
13
CE
14
SPI_Qout
DI
15
SPI_Qclk
CLK
~Sel_Rst
R171
Sub_W
R167
Sub_G1
R165
Sub_G2
R163
Sub_G3
R169
Sub_G4
R172
Rx_W
R168
Rx_G1
R166
Rx_G2
R164
Rx_G3
R170
Rx_G4
R121
Lx_Aud
47.5K
R120
Rx_Vol
47.5K
R114
Lf_Vol
47.5K
R113
Rf_Vol
47.5K
R112
C_Vol
47.5K
R115
Sub_Vol
47.5K
R116
Lr_Vol
47.5K
R117
Rr_Vol
47.5K
A_Lf
A_Rf
Z2_A_Out_L
16
1
Z2_A_Out_R
+5
-5
-5
+5
-5
-5
W10
W12
W11
LC7821
30
29
R2
28
R3
27
R4
26
RCM1
25
R5
24
R6
23
RCM2
22
R7
21
R8
20
RCM3
19
VDD
18
RST
17
S
16
VSS
ZD3
ZD4
OPEN
OPEN
ZD5
ZD6
OPEN
OPEN
17.4K
24.3K
7.5K
4.64K
2.49K
17.4K
24.3K
7.5K
4.64K
2.49K
PRE & POST AUDIO DETECTORS
U29A
LF353
R118
LF353
47.5K
U29B
R119
47.5K
RL5
HAS212-12
143
5 12
VDD
R98
5.62
+
C72
100uF/25V
Rx_G2
Rx_G3
Rx_Gain
Rx_W
Rx_Out
+15-15
Z2_L_VOL
Z2_R_VOL
+15
84
3
Out_Det
2
-15
ZD12
12V
5
In_Det
6
ZD13
12V
+12
98
Z2_R_VOL
Z2_L_VOL
Z2_~Vol_Mute
+15
.1uF
84
3
S_Gain
2
C79
.1uF
-15
5
Rx_Gain
6
C87
.1uF
1
C86
.1uF
in place of R173
7
in place of R174
D4
LL4148
SPI_D_1
SPI_Out
SPI_Clk
~Vol_En
VDD
Z2_~Vol_Mute
R30
100K
C78
U28A
LF353
1
R107
10K
U28B
LF353
7
R110
10K
D1
LL4148
D2
LL4148
BC850CL
U13 CS3310
9
AIR
16
AIL
7
SDATAO
3
SDATAI
6
SCLK
2
CS
8
MUTE
1
ZCEN
C19
.1uF
Q2
6
2 of 7
ESM/SBS
D
C
B
A
R24
RF
221
R25
LF
221
R31
SUB
221
R32
CENTER
221
R34
RR
221
R35
LR
221
R141
RX
221
R142
LX
221
-
CON2 RCA_RWY_X3
D
V1_A_In_R
V1_A_In_L
V1_V_In
V2_A_In_R
V2_A_In_L
V2_V_In
V3_A_In_R
V3_A_In_L
V3_V_In
DVD_A_In_R
DVD_A_In_L
DVD_V_In
CD_A_In_R
CD_A_In_L
CD_V_In
SAT_A_In_R
C
SAT_A_In_L
SAT_V_In
TAP_A_In_R
TAP_A_In_L
TAP_V_In
AM_ANT
B
4 8
CON1
1
2
AM PC MOUNT
Y
W
R
A/V INPUT SIGNALS
RS-232 I/O
RS232_In
RS232_Out
LED_K
LED_A
Z2 IR IN
R177
Z1 IR IN
1 2
6
CON8
1
2
3
4
5
6
7
8
CON9
7275-8NB
CON10
7275-8NB
CON11
7275-8NB
CON12
4
3
2
1
D
T
B
T
B
C
T
B
Sa
Sb
B
RJ45
LED_K
LED_A
LL4148
D5
LL4148
D6
402
IEEE-1394-S4
JP2
Header 2X5
3 4
5 6
7 8
9 10
54321
CON3 RCA_RWY_X3
Y
W
12
4 8
R
12
CON4 RCA_RWY_X3
Y
W
4 8
R
CONT1 CONT2 CONT3 CONT4
CON13
+12
CON18
+12
CON5 RCA_RWY_X3
12
4 8
Y
W
R
CON6 RCA_RWY_X2
Z1_V_OutTAP_V_In V1_V_OutSAT_V_In TAP_V_OutCD_V_In Z2_V_OutDVD_V_In V2_V_OutV3_V_InV1_V_In V2_V_In
12
G
W
R
4 8
CON7 RCA_RWY_X2
G
W
R
4 8
A/V OUTPUT SIGNALS
CONT1 CONT2 CONT3 CONT4
ZD11
1N748
R131
10K
R127
10K
R149
1.5K
Q8
BC850CL
R181
68.1
Q15
TIP32C
D7
DL4002
R182
3.01K
ZD10
1N748
R130
10K
R126
10K
R148
1.5K
Q7
BC850CL
+12+12
R180
ZD9
68.1
1N748
Q14
TIP32C
R129
10K
D8
DL4002
R183
3.01K
R125
10K
R147
1.5K
Q6
BC850CL
+12
R179
68.1
Q13
TIP32C
D9
DL4002
R184
3.01K
ZD8
1N748
R128
10K
DVD AUDIO INPUT
DVDA_In_S
DVDA_In_Lr
DVDA_In_Rr
DVDA_In_C
DVDA_In_Lf
DVDA_In_Rf
SUB
LR
RR
CENTER
LF
RF
Z1_V_Out
LX
RX
Z2_V_Out
Z2_A_Out_L
Z2_A_Out_R
V2_V_Out
V2_A_Out_L
V2_A_Out_R
V1_V_Out
V1_A_Out_L
V1_A_Out_R
TAP_V_Out
TAP_A_Out_L
TAP_A_Out_R
+12
R178
R124
68.1
10K
Q11
TIP32C
R146
1.5K
D10
DL4002
Q4
BC850CL
R185
3.01K
+12
A
1 2 3 4 56
Title
B
Date: 28-Jun-2004 Sheet of
File: C:\BK_Data\Series_4\Series_III_N ew_Mains\13783-00.ddbDrawn By:
Ref Series III S2 Connector/Control/Switch
Number RevisionSize
B&K p\n 13783-0C
-
3 of 7
ESM/SBS
A
54321
VIDEO SYSTEM CONNECTOR
6
DAC_T
DAC_T
DAC_X
DAC_X
DAC_F
DAC_F
DAC_C
DAC_C
D
DSP_Sckt
Z1_SPDIF_In
M_~PDN
I2C_Data
Z86_Data
Comp_Vid_Sel
S_Vid_Sel
C
SPI_Qclk
~VFD_Clk
Ser_Busy
SPI_Qout
B
~DSP_En
~OSD_En
~SPDIF_En
Aud_Sys_En
~Z2_Rly_En
~Z1_Rly_En
~Vol_Mute
Aud_I_Det
Aud_O_Det
MPX_Det
A
~Vid_Det
~Program
DAC_R
DSP_Fst
XILINX I/O PORTS
Ser_Data
LED_St
EXTL
PLL_Clk
Sys_Clk
CONT1
CONT2
CONT3
CONT4
Ser_Clk
I2C_Clk
SPI_Clk
SPI_Out
~Z86_Int
Sclk
Sync
Mclk
ADC
M2_En
M1_En
Aud_En
PLL_En
Ser_En
~Vol_En
IR_Data
Sta_Det
Ser_Rd
Ser_Wr
SPI_In
Z86_Clk
DAC_R
DSP_Sckt
DSP_Fst
Z1_SPDIF_In
M_~PDN
I2C_Data
Ser_Data
Z86_Data
LED_St
Comp_Vid_Sel
S_Vid_Sel
EXTL
PLL_Clk
Sys_Clk
CONT1
CONT2
CONT3
CONT4
Ser_Clk
I2C_Clk
SPI_Clk
SPI_Qclk
~VFD_Clk
Ser_Busy
SPI_Out
SPI_Qout
~Z86_Int
Sclk
Sync
Mclk
ADC
M2_En
M1_En
Aud_En
~DSP_En
~OSD_En
PLL_En
Ser_En
~Vol_En
~SPDIF_En
Aud_Sys_En
~Z2_Rly_En
~Z1_Rly_En
~Vol_Mute
IR_Data
Aud_I_Det
Aud_O_Det
Sta_Det
MPX_Det
~Vid_Det
Ser_Rd
Ser_Wr
SPI_In
Z86_Clk
~Program
DIGITAL I/O CONNECTOR
Z1_SPDIF_In Z1/Z2_SPDIF_O
Z2_SPDIF_In
R85 is loaded when using a
Single DSP Board ÂR85 is OPEN when using a
3 DSP Board
FL1
W29
JP9
910
Z1/Z2_SPDIF_O
78
SPI_Out
56
SPI_Clk
34
Dig_En
12
HEADER 2X5
JP8
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
33 34
35 36
37 38
39 40
HEADER 2X20
Title
Number RevisionSize
B
Date: 28-Jun-2004 Sheet of
File: C:\BK_Data\Series_4\Series_III_N ew_Mains\13783-00.ddbDrawn By:
V1_V_In
V2_V_In
V3_V_In
DVD_V_In
CD_V_In
SAT_V_In
TAP_V_In
TAP_V_Out
V1_V_Out
V2_V_Out
Z2_V_Out
Z1_V_Out
I2C_Data
I2C_Clk
Vid_Ctrl
M_Sys_Clk
~OSD_En
SPI_Clk
SPI_Out
~Vid_Det
S_Vid_Sel
Comp_Vid_Sel
C50 1uF/50V
C46
1uF/50V
C47 1uF/50V
U17
2
V+
+
1
C1+
+
3
C1-
14
T1O
13
R1I
7
T2O
8
R2I
+
6
V-
MAX232smt
Ref Series III S2 Digital Control
B&K p\n 13783-0D
TAPE_V_Out
VCC
C2+
C2ÂT1I
R1O
T2I
R2O
GND
V1_V_In
V2_V_In
V3_V_In
DVD_V_In
CD_V_In
SAT_V_In
TAP_V_In
Z1_V_Out
Z2_V_Out
V2_V_Out
V1_V_Out
LED_A
LED_K
~DSP_Rst
~VFD_Rst
RS232_In
RS232_Out
VCC
16
4
5
11
12
10
9
15
C48 .1uF
+
C49
1uF/50V
RS232_TXD
RS232_RXD
V1_V_In
V2_V_In
V3_V_In
DVD_V_In
CD_V_In
SAT_V_In
TAP_V_In
Z1_V_Out
Z2_V_Out
V2_V_Out
V1_V_Out
TAPE_V_Out
LED_A
LED_K
~DSP_Rst
~VFD_Rst
-
4 of 6
ESM/SBS
D
C
B
A
DAC_F
DAC_R
SPI_In
SPI_Out
~DSP_Rst
~DSP_2_EN
~SPDIF_En
VCC
Ser_Wr
Ser_Rd
RS232_RXD
RS232_TXD
Ser_En
~Program
Ser_Data
Ser_Clk
Ser_Busy
~Z86_Int
Sys_Clk
VCC
~Amp_En
DSP RECEPTACLE
I/O
JP5
3940
3738
3536
3334
3132
2930
2728
2526
2324
2122
1920
1718
1516
1314
1112
RECEPTACLE 2X20
JP3
1112
1314
1516
1718
1920
2122
2324
2526
2728
2930
3132
3334
3536
3738
RECEPTACLE 2X20
3940
~Amp_En
910
SPDIF_ERR_1
78
~DSP_3_EN
56
Z1_SPDIF_In
34
SPDIF_ERR_0
12
12
34
56
78
910
AON
W18
SPI_Clk
DSP_I2S_In
Z1/Z2_SPDIF_O
DSP_Sckt
DSP_Fst
DAC_C
DSP_Hckt
~DSP_En
DAC_X
DAC_T
VCC
SPDIF_ERR_1
~DSP_3_EN
Pin 5 was
SPDIF_R_O
VCC
+
C69
100uF/25V
W16
GNDA
JP7
39 40
37 38
35 36
33 34
31 32
29 30
27 28
25 26
23 24
21 22
19 20
17 18
15 16
13 14
11 12
9 10
7 8
5 6
3 4
1 2
HEADER 2X20
FRONT PANEL CONNECTORDALLAS CONTROLLER RECEPTACLE
R85
0 Ohm Res
Z86_Data
Z86_Clk
SPI_Out
SPI_Clk
~VFD_Clk
LED_St
PLL_Clk
IR_Data
LED_A
LED_K
~VFD_Rst
XDISPB
FL2
W28
FL2
FL1
VCC
R97
3.01K
R37
26.7K
R8
5.62
Aud_O_Det
Aud_I_Det
~Z1_Rly_En
79
80
I/O
I/O_PGCK4
47
PLL_En
MPX_Det
Z86_Data
C57
.1uF
SPI_Clk
~Z2_Rly_En
76
77
78
I/O
Gnd
I/O_DOUT
I/O_DIN
I/O_PGCK3
~Program
I/O_SGCK348Gnd49Done
50
Sta_Det
Done
~Amp_En
Amp_En
O_TDO
Vcc
C_Clk
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Gnd
Vcc
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Vcc
Rd_Trig
Rd_Data
IR_Data
~Program
Done
Pin 30 was
EXTL
U18
VCC
75
74
Ser_Clk
73
Ser_Data
72
71
Ser_Clk
70
CONT2
CONT4
69
68
CONT3
67
66
CONT1
Amp_En
65
64
63
VCC
Ser_Wr
62
Ser_Rd
61
60
59
58
57
56
Ser_En
55
54
Sys_Clk
~Z86_Int
53
~Program
52
51
VCC
VCC
R57
OPEN
OPEN
R54
R58
10K
10K
R77
R78
10K
R132
R133
10K
10K
I2C_Clk
I2C_Data
Z1_SPDIF_In
Z2_SPDIF_In
Dig_En
Aud_Sys_En
DSP_I2S_In
SPI_In
VCC
DSP_Fst
~DSP_2_EN
VCC
~SPDIF_En
DSP_Hckt
~DSP_En
~DSP_3_EN
Aud_En
~OSD_En
~Vid_Det
Rd_Data
Rd_Trig
R2
2.49K
C56
.1uF
Pin 10 was
EXTL
Pin 17 was
SPDIF_R_O
1 2 3 4 56
VCC
1
Gnd
2
I/O_PGCK1
3
I/O
4
I/O_TD1
5
I/O_TCK
6
I/O_TMS
7
I/O
8
I/O
9
I/O
10
I/O
11
Gnd
12
Vcc
13
I/O
14
I/O
15
I/O
16
I/O
17
I/O
18
I/O
19
I/O
20
I/O
21
I/O_SGCK2
22
NC
23
Gnd
24
MODE
25
Vcc
C60
.1uF
U19
8
VCC
7
NC
6
SCL
5
VSS
SDA
24C128
I2C_Clk
I2C_Data
Mclk
99
97
98
100
I/O
I/O
Vcc
I/O_SGCK1
NC26I/O_PGCK227I/O_HDC28I/O_LDC
I/O29I/O31I/O32I/O_INIT36Vcc37Gnd
Ser_Busy
IR_Data
R86
10K
PLL_Clk
R53
100
C61
.1uF
1
A0
2
A1
3
A2
4
~Vol_En
SPI_Qclk
ADC
~Vol_Mute
93
XILINX Spartan XCS10
I/O33I/O34I/O
30
35
Vid_Ctrl
SPDIF_ERR_0
SPDIF_ERR_1
VCC
C62
C63
.1uF
.1uF
VCC
SPI_Qout
88
89
I/O90I/O91I/O92I/O94I/O95I/O96I/O
Vcc
38
VCC
C58
.1uF
Gnd
M2_En
SPI_Out
86
I/O87I/O
I/O
39
LED_St
Q12
BC850CL
84
I/O85I/O81I/O82I/O83I/O
I/O40I/O41I/O
42
M1_En
I/O43I/O44I/O45I/O46I/O
Z86_Clk
~VFD_Clk
C59
.1uF
D
C
B
A
TUN_A_R
TUN_A_L
V1_A_In_R
V1_A_In_L
V2_A_In_R
V2_A_In_L
V3_A_In_R
V3_A_In_L
DVD_A_In_R
DVD_A_In_L
CD_A_In_R
CD_A_In_L
SAT_A_In_R
SAT_A_In_L
TAP_A_In_R
TAP_A_In_L
DVDA_In_S
DVDA_In_C
DVDA_In_Rr
DVDA_In_Lr
DVDA_In_Rf
DVDA_In_Lf
LF
RF
V2B_R
V2B_L
V2_R
V2_L
Lx_Aud
Rx_Aud
Sub_Aud
C_Aud
Lr_Aud
Rr_Aud
Lf_Aud
Rf_Aud
Sub_VOL
C_VOL
Rr_VOL
Lr_VOL
Rf_VOL
Lf_VOL
Rx_VOL
~Sel_Rst
Aud_Sys_En
M1_En
M2_En
Aud_En
SPI_Out
SPI_Clk
I2C_Data
I2C_Clk
SPI_Qout
SPI_Qclk
54321
R71 1K
TUN_R
TUN_L
R72 1K
R61 1K
V1_R
V1_L
R62 1K
R63 1K
V2_R
V2_L
R64 1K
R65 1K
V3_R
V3_L
R66 1K
R67 1K
DVD_R
DVD_L
R68 1K
R69 1K
CD_R
CD_L
R70 1K
R73 1K
SAT_R
SAT_L
R74 1K
R75 1K
TAP_R
TAP_L
R76 1K
R157 1K
DVDA_S
DVDA_C
R158 1K
R159 1K
DVDA_Rr
DVDA_Lr
R160 1K
R161 1K
DVDA_Rf
DVDA_Lf
R162 1K
LF
RF
V2B_R
V2B_L
V2_R
V2_L
Lx_Aud
Rx_Aud
Sub_Aud
C_Aud
Lr_Aud
Rr_Aud
Lf_Aud
Rf_Aud
Sub_VOL
C_VOL
Rr_VOL
Lr_VOL
Rf_VOL
Lf_VOL
Rx_VOL
~Sel_Rst
Aud_Sys_En
M1_En
M2_En
Aud_En
SPI_Out
SPI_Clk
I2C_Data
I2C_Clk
SPI_Qout
SPI_Qclk
1 2 3 4 56
Z1 AUDIO SELECTOR
LC7821
U14
1
TUN_L
L1
2
V1_L
L2
3
V2_L
L3
4
V3_L
L4
5
LCM1
6
DVD_L
L5
7
CD_L
L6
TAPB_L TAPB_R
8
LCM2
9
SAT_L
L7
10
DVDA_Lt
L8
11
LCM3
12
VEE
13
Aud_En
CE
14
SPI_Qout
DI
15
SPI_Qclk
CLK
~Sel_Rst
MISC Z1 AUDIO SELECTOR
U25
1
V1B_L V1B_R
L1
2
TAPB_L TAPB_R
L2
3
Lt_Aud Rt_Aud
L3
4
TAP_L TAP_R
L4
5
A_Lf A_Rf
LCM1
6
L5
7
DVDA_Lr DVDA_Rr
L6
8
Z1_A_L Z 1_A_R
LCM2
9
Rx_Aud
L7
10
DVDA_S
L8
11
Rx_VOL
LCM3
12
VEE
13
M1_En
CE
14
SPI_Qout
DI
15
SPI_Qclk
CLK
~Sel_Rst
Note: Lx_Aud is not switched
R137
24.3K
DVDA_Rr
R138
24.3K
DVDA_Lr
ADC
DAC_F
DAC_C
DAC_R
DAC_X
DAC_T
DSP_Sckt
DSP_Fst
Mclk
Z1_SPDIF_In
R1
R2
R3
R4
RCM1
R5
R6
RCM2
R7
R8
RCM3
VDD
RST
VSS
LC7821
R1
R2
R3
R4
RCM1
R5
R6
RCM2
R7
R8
RCM3
VDD
RST
VSS
5
DVDA_Rs
6
ADC
DAC_F
DAC_C
DAC_R
DAC_X
DAC_T
DSP_Sckt
DSP_Fst
Mclk
Z1_SPDIF_In
S
S
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
TUN_R
V1_R
V2_R
V3_R
DVD_R
CD_R
SAT_R
DVDA_Rt
U31B
LF353
R136
+15-15
+15-15
7
24.3K
Z2 AUDIO SELECTOR
U16 LC7821
1
TUN_L
L1
R1
2
V1_L
L2
R2
3
DVDA_Lt
L3
R3
4
V3_L
L4
R4
5
LCM1
RCM1
6
DVD_L
L5
R5
7
CD_L
L6
R6
8
V2B_L V2B_R
LCM2
RCM2
9
SAT_L
L7
L8
LCM3
VEE
CE
DI
CLK
JP4
HEADER 2X5
.1uF
+15
3
~DVDA_Rs
2
C85
-15
.1uF
15K
15K
17.4K
10K
15K
15K
17.4K
10K
84
RCM3
VDD
RST
VSS
U31A
LF353
R7
R8
S
910
78
56
34
12
R140
TAP_L
R139
DVDA_C
DVDA_S
DVDA_Rf
DVDA_C
DVDA_S
DVDA_Lf
Aud_En
SPI_Qout
SPI_Qclk
~Sel_Rst
C84
10K
10
11
12
13
14
15
R190
R135
R40
R191
R188
R134
R39
R189
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
1
10K
5
DVDA_Rt
6
+15
3
DVDA_Lt
2
-15
MISC 5.1 AUDIO SELECTOR
A_Lf A_Rf
TUN_R
V1_R
Lf_Aud Rf_Aud
DVDA_Rt
DVDA_Lf DVDA_Rf
V3_R
Lf_VOL Rf_VOL
Lr_Aud
DVD_R
DVDA_Lr DVDA_Rr
CD_R
Lr_VOL Rr_VOL
C_Aud Sub_Aud
SAT_R
TAP_R
DVD_R
DVD_L
CD_R
CD_L
R187
84
R186
+15-15
U30B
LF353
U30A
LF353
7
1
10
DVDA_C DVDA_S
11
C_VOL Sub_VOL
12
13
M2_En
14
SPI_Qout
15
SPI_Qclk
~Sel_Rst
RF
LF
DVDA_Rt
3.01K
DVDA_Lt
3.01K
1
2
3
4
5
6
7
8
9
U26
L1
L2
L3
L4
LCM1
L5
L6
LCM2
L7
L8
LCM3
VEE
CE
DI
CLK
LC7821
RCM1
RCM2
RCM3
VDD
RST
VSS
AUDIO SYSTEM
JP1
DAC_X
39 40
DAC_T
30
R1
29
R2
28
R3
27
R4
26
Rr_Aud
25
R5
24
R6
23
22
R7
21
R8
20
19
+15-15
18
17
S
16
R102
17.4K
R101
17.4K
+5
-5
HEADPHONE BUFFER
+15
3
R_HEAD
2
-15
5
L_HEAD
6
I2C_Clk
I2C_Data
M_~PDN
Mclk
Sub_Aud
C_Aud
Rr_Aud
Lr_Aud
Rf_Aud
Lf_Aud
84
.1uF
C70
.1uF
U21A
LF353
C71
U21B
LF353
1
R103
17.4K
7
R104
17.4K
37 38
35 36
33 34
31 32
29 30
27 28
25 26
23 24
21 22
19 20
17 18
15 16
13 14
11 12
9 10
7 8
5 6
3 4
1 2
RECEPTACLE 2X20
C33
.1uF
C43
.1uF
+15
-15
Z1_SPDIF_In
ADC
Aud_Sys_En
DSP_Sckt
DAC_C
DSP_Fst
DAC_F
DAC_R
Lx_Aud
Rx_Aud
Rt_Aud
Lt_Aud
Z1_A_L
Z1_A_R
R99
47.5
R100
47.5
C44
.1uF
C41
.1uF
R81
JUMPER
C42
.1uF
C45
.1uF
R82
JUMPER
TAPB_L
TAPB_R
+5
-5
V1B_L
V1B_R
W21
R_Hp
W8
GND
W19
L_Hp
+15
-15
V2B_L
V2B_R
+15
C31
.33uF
84
3
2
R59
1M
3
2
R83
1M
3
2
R91
1M
U5A
LF353
U6A
LF353
U7A
LF353
R56
221
5
7
TAP_L
6
R60
1M
R80
221
5
7
V1_L
6
R84
1M
R88
221
5
7
V2_L
6
R92
1M
Ref Series III S2 Audio Selector
Number RevisionSize
B&K p\n 13783-0S
1
TAP_R
C32
.33uF
-15
+15
84
1
V1_R
-15
+15
84
1
V2_R
-15
Title
B
Date: 28-Jun-2004 Sheet of
File: C:\BK_Data\Series_4\Series_III_N ew_Mains\13783-00.ddbDrawn By:
U5B
LF353
U6B
LF353
U7B
LF353
6
TAPE LINE OUTPUT
R55
221
V1 LINE OUTPUT
R79
221
V2/Z2 LINE OUTPUT
R87
221
-
TAP_A_Out_L
TAP_A_Out_R
V1_A_Out_L
V1_A_Out_R
V2_A_Out_L
V2_A_Out_R
6 of 7
ESM/SBS
D
C
B
A
321
4
C51
+
10uF/35V
C52
+
10uF/35V
C13.1uF
R6
6.34K
C14.1uF
R11
6.34K
U9 KES-209AV-U1
D
S MET
AM OSC
MNO/ST
ST12AM VT
AM/FM
R15
3.01K
R14
3.01K
AF OUT
20L14R13SD19
7
18
BC860CL
R12
17.4K
11
17
C1
.1uF
Q1
R13
3.01K
16
LOC/DX5ANT
AM_ANT
C8
.1uF
Sta_Det
C
MPX_Det
ZD2
1N748
+8
1
ZD1
1N748
B+9FM B+4VT2N/C
B+15FM OSC
6
8
3
10
SEEK
GND
+15
84
3
L_TUNER
2
-15
5
R_TUNER
6
U1A
LF353
U1B
LF353
1
R1
47.5K
C4
560pF
7
R7
47.5K
C6
560pF
LEFT MPX 19kHz BAND PASS FILTER
257BLR-3718N
7
8
FLT1
OUT1
3
OUT1
3
OUT2
6
5
4
7
OUT2
6
5
4
IN12IN2
C5
1nF
C7
1nF
1
R4
3.01K
257BLR-3718N
8
FLT2
IN12IN2
1
R9
3.01K
RIGHT MPX 19kHz BAND PASS FILTER
D
R5
3.01K
TUN_A_L
R10
3.01K
C
TUN_A_R
B
A
PLL_Clk
PLL_En
SPI_Out
SPI_Clk
SPI_In
~VFD_Rst
~DSP_Rst
S_Vid_Sel
Comp_Vid_Sel
R21 5.62
C9
U8
1
XOUT
2
CE
3
DI
4
CL
5
D0
FM_Sel
~VFD_Rst
~DSP_Rst
Mono
678
9
10
RN1 10K X 9
1 2 34
6
7
8
9
10
11
12
VCC
21345
OUT7
OUT6
I/O5
I/O4
I/O3
I/O2
I/O1
LC72146
+15
XIN
VSS1
AOUT
AIN
PD0
PD1
VSS
FMIN
AMIN
VDD
HCTR
LCTR
U20
LM7805CTB
1
Vin
1N748
24
23
22
21
20
19
18
17
16
15
14
13
ZD19
FM_Osc
AM_Osc
GND
2
+5V
3
C2
.1uF
VCC
+8
.1uF
C53
10uF/35V
C12
.1uF
+
C64
100uF/25V
R194
open
R195
open
+
R18
1K
R17
402
C54
10uF/35V
Q5
2SK371
R16
3.01K
Title
Date: 28-Jun-2004 Sheet of
File: C:\BK_Data\Series_4\Series_III_New_Mains\13783-00.ddbDrawn By:
R19
1K
C11
.1uF
B
+
A
R3
10K
Q3
BC850CL
Number RevisionSize
R20
1K
C3
33nF
C10
33nF
Ref Series III S2 Tuner
B&K p\n 13783-0T
A
-
7 of 7
ESM/SBS
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