Grundig SEDANCE 27, Service Manual

Page: 10 / 27

Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
Übersicht / Overview
+5
V
+3
.3
V
_S
TB
Y
POWE
R
S
T_
B
Y
P
N
L_
E
N
+5
V
_S
TB
Y
+2
.5
V
+3
.3
V
P
A
N
E
L_
P
O
W
E
R
+1
.8
V
_S
TB
Y
+12V +8
V
STAND_BY_2
POWER SUPPLY
+5
V
S
C
L5
V
S
D
A
5V SI
F
A
M
_M
O
N
O
C
V
B
S
_I
F
S
C
1_
O
U
T_
V
TUNER
C
V
B
S
_I
F
Y
C
O
E
SC_
R
SC_
G
SC_
B
SC2_IN_V
SC1_IN_V
S
C
2_
O
U
T_
V
CVBS_TXT
O_HS
R_TXT
G_TXT
B_TXT
FB_TXT
O_VS
+5V
+3.3V
S
D
A
5V
S
C
L5
V
R
E
S
E
T
Y
U
V
[0
..7
]
SVHS_Y
SVHS_C
V
C
LK
VIDEO CONVERTER
S
C
L3
V
S
D
A
3V
S
D
A
5V
S
C
L5
V
DDC_SDA_VGA
DDC_SCL_VGA
RED+
RED-
GREEN+
GREEN-
BLUE+
BLUE-
+3
.3
V
_S
TB
Y
+1
.8
V
_S
TB
Y
R
E
S
E
T
+5
V
_S
TB
Y
PNL_EN
PANEL_POWER
ST_BY
V
C
LK
Y
C
O
E
Y
U
V
[0
..7
]
5221_IO2
5221_IO1
MUTE
FB_SC
VS_PC
HS_PC
SOG_MCSS V
G
A
C
O
N
S
C
2_
P
IN
8
S
C
1_
P
IN
8
STAND_BY_2
TX
D
R
X
D
P
C
_S
D
_S
W
SCALER
+3
.3
V
+2
.5
V
S
D
A
3V
S
C
L3
V
CVBS_TXT
B_TXT
FB_TXT
O_VS
O_HS
R
E
S
E
T
R_TXT
G_TXT
52
21
_I
O
1
52
21
_I
O
2
+5
V
TELETEXT
POWE
R
S
C
L5
V
S
D
A
5V
R
E
S
E
T
S
V
H
S
_C
S
V
H
S
_Y
+5
V
SI
F
FB_S
C
MUTE
SC1_IN_V
RED+
RED-
GREEN+
GREEN-
BLUE+
BLUE-
SC2_IN_V
DDC_SDA_VGA
DDC_SCL_VGA
SC_B
SC_G
SC_R
+12V
A
M
_M
O
N
O
SC1_OUT_V
S
C
2_
O
U
T_
V
+8V
VS_PC
HS_PC
SOG_MCSS
V
G
A
C
O
N
S
C
1_
P
IN
8
S
C
2_
P
IN
8
SWIN
TX
D
R
X
D
P
C
_S
D
_S
W
IN/OUT, VGA, AMPLIFIER
R_TXT
G_TXT
B_TXT
FB_TXT
O_VS
O_HS
CVBS_TXT
SVHS_Y
SVHS_C
SC1_IN_V
SC2_IN_V
RESET
SCL3V
SDA3V
+3.3V
+5V
+2.5V
POWER
SCL5V
SDA5V
SIF
SC_R
SC_G
SC_B
+12V
V
C
LK
Y
C
O
E
S
C
L5
V
S
D
A
5V
S
D
A
3V
S
C
L3
V
R
E
S
E
T
+3
.3
V
_S
TB
Y
+1
.8
V
_S
TB
Y
+5
V
_S
TB
Y
Y
U
V
[0
..7
]
PANEL_POWER
PNL_EN
ST_BY
RED+
RED-
GREEN+
GREEN-
BLUE+
BLUE-
DDC_SDA_VGA
DDC_SCL_VGA
AM_MONO
SC2_OUT_V
MUTE
FB_SC
SC1_OUT_V
+8V
5221_IO1
5221_IO2
VS_PC
HS_PC
SOG_MCSS
VGACON
SC1_PIN8
SC2_PIN8
S
W
IN
S
T_
B
Y
+5
V
+12V
SUBWOOFER
Option
S
W
IN
+12V
+5V
PC_SD_SW
TXD
RXD
P.2-7 P.2-10 P.2-11
P.2-8/2-9
P.2-12
P.2-7
GR
UNDIG Ser
vice
Chassis
L5A-26
"
…32
"
2 -