Bang & Olufsen DVD 2, Service Manual

Page: 64 / 70

7.2 Overall block diagram Overall block diagram 7.2 7.2
Overall block diagram
1900 (AUDIO I/O)
22
G
N
D
D
21
D
AO
U
T
20
G
N
D
19
D
AI
N
O
PT
(N
/U
)
18
N
C
17
D
AD
IN
C
O
AX
(N
/U
)
16
D
_K
IL
L
15
G
N
D
14
D
_P
C
M
C
LK
13
G
N
D
12
D
_D
A
TA
0
11
D
_W
C
LK
10
G
N
D
9
D
_B
C
LK
8
G
N
D
7
A
_P
C
M
C
LK
6
G
N
D
5
A_
D
AT
4
G
N
D
3
A
_W
C
LK
2
A
_B
C
LK
1
G
N
D
CVBS
7004
AD1852JRS
DAC
S-VIDEO
1922B
1 12VSTBY
2 STBY
3 5VSTBY
4 DD_ON
5 3V3STBY
6 IPFAIL
7 5NSTBY
8 GND
9 33VSTBY
10 GND
11 VGNSTBY
1932
1
A
IN
FR
2
G
N
D
3
A
IN
FL
4
C
VB
S
FI
N
5
G
N
D
6
N
C
7
C
FI
N
8
G
N
D
9
Y
FI
N
1942 (CAM IN)
22
D
_U
B
21
G
N
D
20
D
_Y
G
19
G
N
D
18
D
_V
R
17
G
N
D
16
D
_C
15
G
N
D
14
D
_Y
13
G
N
D
12
D
_C
VB
S
11
G
N
D
10
G
N
D
9
A
_Y
C
VB
S
8
G
N
D
7
A
_C
6
G
N
D
5
A
_Y
G
4
G
N
D
3
A
_U
B
2
G
N
D
1
A
_V
R
1947 (VIDEO I/O)
7007
UDA1361TS
ADC
AL AR
1
G
N
D
2
S
D
A_
F
3
S
C
L_
F
4
C
SN
_F
5
IP
O
R
T1
6
R
C
7
5
V
ST
B
Y
8
T
E
M
P
_S
E
N
SE
9
K
E
Y1
10
1
2V
ST
B
Y
11
K
EY
2
12
F
_I
R
O
U
T
13
V
G
N
ST
BY
7501
HEF4052BT
Analog Switch
7600
MSP3415G
Sound Processor
7509
MC33078D
Dual Amp
7203
NJM2267M
Video Amp
AIN1L
AFER
ARADC
ALADC
AR
DA
C
A
N
TE
N
N
A
IN
PU
T
TV
O
U
T
SCART 2
21
2
0
C
VB
SI
N
1
19
Y
C
V
BS
O
U
T1
1
8
17
1
6
F
BO
U
T
15
R
C
O
U
T
1
4
13
1
2
11
G
O
U
T
1
0
P
50
9
8
8
S
C
1
7
B
O
U
T_
C
IN
6
A
IN
1L
5
4
3
A
O
U
T1
L
2
A
IN
1R
1
A
O
U
T1
R
1921
7504
HEF4052BT
Analog Switch
AIN1R
7505
MC33078D
Dual Amp
AFEL
7413
NJM2235M
Video Switch
AIN2L
AIN2R
AOUT1L/R
AO
U
T2
L
A
O
U
T2
R
AL
DA
C
C
SCART 1
SCL_5V
SDA_5V
ASC1
RSA1/2
1925
DIGITAL
OUT
7700
74HCU04D
VFV
7108
TMP87CH74F
Processor
6255
AIN2L
AIN2R
7408
STV6618
Video Switch
Matrix
AOUT2L/R
SC
L_
5V
SD
A_
5V
SI
F1
18.432M
8M 7412
NJM2234M
Video Switch
1
R
E
SE
T
2
T
XD
3
R
X
D
4
IN
T
5
S
D
A0
6
S
C
L0
7
N
C
8
D
-IR
O
U
T(
n/
u)
9
F
B
1
0
G
N
D
1914
7100
NCP
301
SCL_5V
SDA_5V
FA
N
0/6/12 cct.
8SC2
to 7108
FB
to
7108
FB
8SC2
WSFI
WSFI
1911 (I2C/Reset)
Level
shift
C
VB
S
From PSU
PCB 1, Analog
N
/U
PC
B
9
5,
D
VD
/R
W
d
riv
e
N
/U
N
/U
1 RESETn
2 GND
3 DD[7]
4 DD[8]
5 DD[6]
6 DD[9]
7 DD[5]
8 DD[10]
9 DD[4]
10 DD[11]
11 DD[3]
12 DD[12]
13 DD[2]
14 DD[13]
15 DD[1]
16 DD[14]
17 DD[0]
18 DD[15]
19 GND
20 Keypin
21 DMARQ
22 GND
23 DIOW_n
24 GND
25 DIOR_n
26 GND
27 IORDYC
28 SEL
29 DMACK_n
30 GND
31 INTRQ
32 IOCS16
33 DA1
34 PDIAG_n
35 DA0
36 DA2
37 CS0_n
38 CS1_n
39 DASP_n
40 GND
32.768K
REAR OUT
21
2
0
Y
C
V
BS
IN
2
19
C
VB
SO
U
T2
1
8
17
1
6
F
BI
N
15
R
C
IN
1
4
13
1
2
11
G
IN
1
0
P
50
(N
/U
)
9
8
7
B
IN
_C
O
U
T
6
A
IN
2L
5
4
3
A
O
U
T2
L
2
A
IN
2R
1
A
O
U
T2
R
Detector
7401-3
W
U
Y
IM
UT
E
OR OR
D_KILL
BKILL
(Cinch)
AKILL
(Scart)
DAC
Mute
DAC
Mute
AL
A
R
Y U V
1922A
7200
NJM2584M
Video Switch
7201
NJM2580M
Video AMP
1700
TMQZ2
- 439A
Tuner
To MSP
SI
F
From tuner
GND 1
Pr 2
GND 3
Pb 4
GND 5
Y 6
GND 7
1920
D_
UB
D_
YG
D_
VR
Comparator
7934
FO
M
E
CVBSIN1
CVBSIN2
+
0/5 V
To/from 1911/4
G-LINK
OUT
1924
F_
IR
O
U
T
TX
D
R
XD
P50
To/from 1924
Fr
om
1
94
0
P50
to
7108
From conn. 1920
of HDMI board
From PSU
ARDAC
ALDAC
ARDAC
ALDAC
IPRO
from 7108
IPRO
to 7200
Y/CVBSout-REC RC
in2
BO
UT
_C
IN
1
CF
in
Ctrl lines
D_KILL
Muting
Cct.
AKILL
Muting
Cct.
AKILL
Muting Cct. BKILL
ST
BY
DD
_O
N
8019 (DV-IN)
VFV
to power
conn.
of D5.1
to power
conn.
of Hard-disc
O O
AC MAINS
INPUT
3V
3D
1
3V
3D
2
3V
3D
3
3V
3D
4
G
N
D
5
12
V
D
6
G
N
D
7
G
N
D
8
5V
D
9
H
D
_O
N
10
G
N
D
11
-5
V
D
12
1
1
2V
ST
BY
2
S
TB
Y
3
5
VS
TB
Y
4
D
D
_O
N
5
3
V3
ST
BY
6
I
PF
AI
L
7
5
N
ST
BY
8
G
N
D
9
3
3V
ST
BY
10
G
N
D
11
V
G
N
ST
B
Y
J1
J2
J5
J4
J3
12
V
E
1
G
N
D
2
G
N
D
3
5V
E
4
12
VH
1
G
N
D
2
G
N
D
3
5V
H
4
PCB 3, Display
7103
TMP86PM74A
Proccessor
FTD DISPLAY
7100
(9-ST-35GNK)
16M
Filament
cct.
PWM
FI
L1
FI
L2
Stby LED
(Green/Red)
1 GND
2 SDA_F
3 SCL_F
4 CSN_F
5 IPORT1
6
7 5VSTBY
8 TEMP_SENSE
9 KEY1
10 12VSTBY
11 KEY2
12 F_IROUT(n/u)
13 VGNSTBY
1910
3134
NTC
B57875
OPEN/
CLOSE
1
A
IN
FR
2
G
N
D
3
A
IN
FL
4
C
VB
S
FI
N
5
G
N
D
6
N
C
7
C
FI
N
8
G
N
D
9
Y
FI
N
1922
PCB 5,
AV Input
19
20
C
VB
S
A
L
A
R
YC IN
1921
Cable
8053
1 SC1_PIN8_OUT
2 GND
3 0/6/12_OUT
to conn. 1103
of AVL Bd.
To conn. 1932
of Analog Bd.
To conn. 1920
of Analog Bd
To Cable
8053 of
Analog Bd.
H
A
R
D
-D
IS
C
(2
50
G
B
)
Fr
om
PS
U
PCB14,
Keyboard
Detect
12V
TMP91FY27 MCU
DC and AVL
pulse adder
and
extractor
switch
0V/12V
0V/6V
FO
R
M
A
T_
O
U
T
'L
' P
in
8_
In
=
0
V
'H
' P
in
8_
In
=
0
/6
/1
2V
M
X-
>
L,
N
on
-M
X-
>H
AVL protocol
DEC to RC6
(baseband)
AVL
pulses
0V/
12V
0V/6V
Control
RC6_3V3
RC6_5V
I2C_3V3
FO
R
M
A
T_
IN
'L
' D
VD
R
in
A
ct
iv
e
or
H
PS
'H
' D
VD
R
in
L
PS
Detect
6V
SC1_PIN8_OUT 1
GND 2
0/6/12_OUT 3
SCL_5V 1
SDA_5V 2
GND 3
NC 4
NC 5
NC 6
NC 7
Level
shifter
1
2
3
4
5
6
7
8
9
10
11
12
13
GND 1
SDA_F 2
SCL_F 3
CSN_F 4
IPORT1 5
RC 6
5VSTBY 7
TEMP_SENSE 8
KEY1 9
12VSTBY 10
KEY2 11
F_IROUT 12
VGNSTBY 13
Level
shifter
REC STOP
KEY2
OPEN/
CLOSE
PREV
KEY1
PLAY STBY
7107
3V3STBY
1103
1102
1100 &1101
connected in parallel
7108
LD1117D33
7111
EEPROM
7201
PDI1394L40
Link Chip
G
N
D
2
2
A
_B
C
LK
2
1
A_
W
C
LK
2
0
G
N
D
1
9
A
_D
AT
A
1
8
G
N
D
1
7
A
_P
C
M
C
LK
1
6
G
N
D
1
5
D
_B
C
LK
1
4
G
N
D
1
3
D
_W
C
LK
1
2
D
_D
AT
A0
1
1
G
N
D
1
0
D
_P
C
M
C
LK
9
G
N
D
8
D
_K
IL
L
7
S
PD
IF
_C
O
A
X_
IN
(N
/U
)
6
5V
5
S
PD
IF
_O
PT
_I
N
(N
/U
)
4
G
N
D
3
D
A
O
U
T
2
G
N
D
1
1900 (AUDIO I/O)
G
N
D
1
V
IP
_F
B
2
N
/
U
3
N
/
U
4
S
C
L0
5
SD
A0
6
IN
T
7
TX
D
3
8
R
X
D
3
9
AN
AL
OG
_R
ES
ET
n
1
0
1500 (PSU)
3V
3
1
3V
3
2
3V
3
3
3V
3
4
G
N
D
5
12
V
6
G
N
D
7
G
N
D
8
5V
9
H
D
_O
N
10
G
N
D
11
-5
V
1
2
1904
(VIDEO I/O)
A_VR 22
GND 21
A_UB 20
GND 19
A_YG 18
GND 17
A_C 16
GND 15
A_YCVBS 14
GND 13
GND 12
D_CVBS 11
GND 10
D_Y 9
GND 8
D_C 7
GND 6
D_VR 5
GND 4
D_YG 3
GND 2
D_UB 1
7007
SAA7118E
VIP
7200
PDI1394P25
Physical Chip
R_OUT
VIP ANALOG VIDEO INPUT
ITU_IN[0:7]
UA
RT
3
(E
PG
*)
VIDEO OUT
Discrete
Filter
&
Buffer
DIGITAL AUDIO
MPIO7_MUTE_LV
+5
V
7
N
/U
6
G
N
D
5
N
/U
4
R
X
D
0
3
2
TX
D
0
1
1103 (Service)
Buffer
UA
RT
0
B_OUT
G_OUT
7809
EEPROM
(APPL)
7810
EEPROM
(BOOT)
I2
C
1
7812/13
SDRAM
(64MB)
6 5 4 3 2 1
1203 (DV-IN)
7400
PNX7100EH/G/C3
CHRYSALIS
Y_OUT
C_OUT
CVBS_OUT
ITU_OUT[0:7]
7106
NCP
303
PNX7100_
RESETn
PC
I_
AD
[8
:3
1]
IDE1 1102
ID
E1
_D
D(
15
:0
) & ID
E1
_C
TL
(D4.3)
40 1
MPIO19_EEPROM_En(Diags En)
1400 (E-JTAG)
I2C 0
I2C 0
7108
74LVC245
MPIO17_HD_ON
+1V8
to Chrysalis
7501
&
7500
1
40
73
20
74
LV
C
24
5
73
21
74
LV
C
24
5
73
22
74
LV
C
24
5
ID
E
2
11
01
H
A
R
D
-D
IS
C
MPIO17_HD_ON
PCB 2, Digital
PNX7100_ITU_IN_CLK(27M)
H
SC
KB
4M
24.576M
SYSCLK
(49.152M)
24.576M
Level
Translator
7805/07
FLASH
(16MB)
1104 (I2C/Reset)
1
40
10
04
(H
D
M
I)
1915
1 SCL_5V
2 SDA_5V
3 GND
4 NC
5 NC
6 NC
7 NC
12VE 1
GND 2
GND 3
5VE 4
19
40
-1
19
40
-2
7253
ADV7320
(NTSC/PAL)
G
N
D
1
Y
2
G
N
D
3
PB
(U
)
4
G
N
D
5
PR
(V
)
6
G
N
D
7
7100
FAROUDJA IC
FLI2310
7304
HDMI Trx
SiI9030
1920
(YPbPr)
40
1
7251/2
AD8091/2
Buffer
PCB 10,
HDMI
19
30
1
19
H
D
M
I
O
U
T
ITU_OUT[0:7]
7103
SDRAM
(64MB)
YCbCr[0:11]
in
te
rla
ce
P.scan
YCbCr[2:11]
19
11
12VH 1
GND 2
GND 3
5VH 4
40
1
PCB 4, Power Supply
PC
B
94
, H
ard
d
riv
e