Grundig 32-7851 T, Руководство по обслуживанию

Страница: 23 / 45

GRUNDIG Service Chassis SG
2 -
PWM0
PWM1 PWM0
PWM3 PWM2
PWM2
PWM3
MRST
SCL_MAIN
PWM1
M
R
S
T
SDA_MAIN
SCL_MAIN
SDA_MAIN
RXB1-
RXB1+
RXB2-
RXB2+
R
X
B
0
+
R
X
B
0
-
HPLUGB
RXACLK-
RXA0-
RXA0+
RXA1-
RXA1+
RXA2-
RXA2+
HPLUGA
D
D
R
_
D
0
D
D
R
_
D
1
D
D
R
_
D
2
D
D
R
_
D
3
D
D
R
_
D
4
D
D
R
_
D
5
D
D
R
_
D
7
D
D
R
_
D
6
D
D
R
_
D
8
D
D
R
_
D
9
D
D
R
_
D
1
0
D
D
R
_
D
1
1
D
D
R
_
D
1
2
D
D
R
_
D
1
3
D
D
R
_
D
1
4
D
D
R
_
D
1
5
DDR_A2
DDR_A3
DDR_A4
DDR_A0
DDR_A1
DDR_A7
DDR_A6
DDR_A5
DDR_A11
DDR_A10
DDR_A9
DDR_A8
DDR_BA0
DDR_BA1
DDR_CLK-
D
D
R
_
C
K
E
D
D
R
_
D
Q
S
1
FLASH_CSA
FLASH_CLK
FLASH_WP
RXD
TXD
L
V
D
S
O
_
C
L
K
L
V
D
S
O
_
C
L
K
LV
D
S
O
_
3
-
LV
D
S
O
_
3
+
LV
D
S
E
_
0
-
LV
D
S
E
_
0
+
LV
D
S
E
_
1
-
LV
D
S
E
_
1
+
LV
D
S
E
_
2
-
LV
D
S
E
_
2
+
L
V
D
S
E
_
C
L
K
L
V
D
S
E
_
C
L
K
LV
D
S
E
_
3
-
LV
D
S
E
_
3
+
LV
D
S
O
_
0
-
LV
D
S
O
_
0
+
LV
D
S
O
_
1
-
LV
D
S
O
_
1
+
LV
D
S
O
_
2
-
LV
D
S
O
_
2
+
LED2
LED1
KEY1
KEY2(OPT)
IR_IN
BIN_VGA
SOG
GIN_VGA
RIN_VGA
HS_VGA
VS_VGA
P
C
_
L
_
IN
P
C
_
R
_
IN
SAV_CVBS_IN
SAV_Y
SAV_C
VCOM1
D
V
O
C
L
O
C
K
SCL_MAIN
SDA_MAIN
#RESET
S
A
V
/R
C
A
_
R
_
IN
S
A
V
/R
C
A
_
L
_
IN
PR_IN
PB_IN
Y_IN
SOY
S
P
K
R
_
L
E
F
T
S
P
K
R
_
R
IG
H
T
MUTE_AUDIOAMP
STBY
H
P
_
L
E
F
T
H
P
_
R
IG
H
T
TUNER_CVBS
VCOM0
SC1_FASTBLANK
SC1_SLOWBLANK
SC_BIN
SC_GIN
SC_RIN
S
C
1
_
L
_
IN
S
C
1
_
R
_
IN
S
C
1
_
L
O
U
T
S
C
1
_
R
O
U
T
SC1_CVBS
S
C
2
_
L
O
U
T
S
C
2
_
R
O
U
T
S
C
2
_
R
_
IN
S
C
2
_
L
_
IN
SC2_CHROMA
SC2_CVBS
SC2_CVBS_OUT_SCALER
SC2_SLOWBLANK
SC1_CVBS
SIF_P
SIF_M
R
X
B
C
L
K
+
R
X
B
C
L
K
-
A
D
O
A
B
C
K
A
L
R
C
L
K
S
P
D
IF
_
D
V
B
RST_IDTV
T
X
D
_
D
V
B
R
X
D
_
D
V
B
BCKL_ADJ
BCKL_ON
P
A
N
E
L
_
O
N
SCL_HDA
SDA_HDA
SDA_HDB
SCL_HDB
FLASH_SDO
FLASH_SDI
CEC
OTG_VBUS
USB_DM
USB_DP
USB_POWEN
D
V
O
0
D
V
O
7
D
V
O
1
D
V
O
2
D
V
O
3
D
V
O
4
D
V
O
5
D
V
O
6
S
P
D
IF
2
4
V
_
S
E
N
S
E
USB_OCD
LV
D
S
E
_
4
-
LV
D
S
E
_
4
+
LV
D
S
O
_
4
-
LV
D
S
O
_
4
+
33V_PWM
D
D
R
_
D
Q
S
0
D
D
R
_
L
D
Q
M
D
D
R
_
U
D
Q
M
DDR_RAS
DDR_CAS
DDR_WE
A
U
_
S
W
DELAY
A
U
M
O
N
O
MPEG_CVBS
1V2_MVDD
3V3
3V3_DIG
3V3
3V3
3V3_AN
3V3_AN
3V3_AN
3V3_AN
3V3
3V3
3V3_DIG
3V3_DIG
3V3_DIG
3V3_DIG
3V3_DIG
3V3_DIG
3V3_DIG 1V2_MVDD
1
V
2
_
M
V
D
D
1V2_MVDD
1V2_MVDD
2V5_MDDR
2V5_MDDR
2V5_MDDR
3V3_DIG
3V3_DIG
3V3_DIG
3V3_DIG
3V3_DIG
V
R
E
F
_
M
D
D
R
3V3_DIG
3V3_AN
1V2_MVDD
3V3_DIG
2V5_MDDR 2V5_MDDR
3V3_AN
3V3_SW
1V2
3
V
3
_
D
IG
3V3_DIG
Mode Select
VGA
HDMI
SCART 1
YPbPr
SIDE AV
F
R
O
N
T
E
N
D
S
A
V
/R
C
A
A
U
D
IO
S
C
A
R
T
1
A
U
D
IO
I
N
P
C
A
U
D
IO
S
C
A
R
T
2
A
U
D
IO
I
N
H
E
A
D
P
H
O
N
E
S
C
A
R
T
1
A
U
D
IO
S
P
E
A
K
E
R
S
C
A
R
T
2
A
U
D
IO
FLASH
D
V
I
F
R
O
M
D
V
B
DDR-RAM
LVDS
VGA+DEBUG CON
D
V
B
D
IG
IT
A
L
A
U
D
IO
R80 4.7k R80 4.7k
C35
100nF/25V
R
8
2
1
0
k/
6
0
3
R
5
6
1
0
k/
6
0
3
L
7
100nF/25V
C42
C11
100uF/16V
R
N
9
1 3 5 7
8 6 4 2
C38
4.7uF/16V
RN2 A47R
1
3
5
7
2
4
6
8
C21
100nF/25V
C21
100nF/25V
R
N
6
A
4
7
R
R
N
6
A
4
7
R
1 3 5 7
2 4 6 8
C26
100nF/25V C26
100nF/25V
R52 47R
R48
390RF/603
Y1
14.318MHz
R31 0R R31 0R
R42 10k
R
N
4
A
4
7
R
R
N
4
A
4
7
R
1 3 5 7
2 4 6 8
C4 10uF/6.3V
C20 100nF 100nF
L2
600R Bead 1206
R
3
4
3
3
R
R
3
4
3
3
R
R65NC(10k)
R76 1k R76 1k
R78 4.7k R78 4.7k
RN1 A47R
1
3
5
7
2
4
6
8
L6
600R Bead 0603
R62 47R R62 47R
C17
100nF/25V
R
7
2
4
7
R
R67
10k
R49
NC(10k/603) NC(10k/603)
C19 100nF C19 100nF
100nF/25V
C47
Q1
BC847BL
C5
100nF/25V
L4
68R Bead 0603
R51 47R
C41
100nF/25V
C15
100uF/16V
C16
100nF/25V
R39 22R R39 22R
MST6998DLD-3
U1
MST69985DLD-3
MST6998DLD-3
RXB1N
1
RXB1P
2
GND_0
3
RXB2N
4
RXB2P
5
GND_1
11
GND_2
17
GND_3
40
GND_4
61
G
N
D
_
5
6
6
G
N
D
_
6
1
0
0
G
N
D
_
7
1
0
5
G
N
D
_
8
11
3
GND_9
134
GND_10
148
GND_11
166
GND_12
184
G
N
D
_
1
3
2
0
8
G
N
D
_
1
4
2
2
2
G
N
D
_
1
5
2
4
1
1
V
2
_
V
D
D
1
0
1
1V2_VDD
149
1V2_VDD
185
1
V
2
_
V
D
D
1
9
3
1
V
2
_
V
D
D
2
4
0
3
V
3
_
IO
9
9
3V3_IO
165
3V3_IO
183
3
V
3
_
IO
1
9
4
3
V
3
_
IO
2
0
7
3
V
3
_
IO
2
2
1
3
V
3
_
IO
2
3
5
3
V
3
_
P
L
L
2
5
1
3V3_MPLL
136
3
V
3
_
A
U
7
0
3V3_SIF
63
3V3_AVDD_0
14
3V3_AVDD_1
39
3V3_AVDD_2
58
3
V
3
_
A
V
D
D
_
3
2
5
4
2
V
5
_
M
E
M
1
0
8
2
V
5
_
M
E
M
11
4
2
V
5
_
M
E
M
11
9
2V5_MEM
135
2V5_MEM
147
USB_DP
189
USB_CID
190
LV
B
4
+
2
0
9
LV
B
4
-
2
1
0
LV
A
4
-
1
9
6
LV
A
4
+
1
9
5
R
X
B
0
N
2
5
5
R
X
B
0
P
2
5
6
R
X
B
C
L
K
N
2
5
2
R
X
B
C
L
K
P
2
5
3
RXA2N
18
RXA2P
19
RXA1N
15
RXA1P
16
RXA0N
12
RXA0P
13
RXACLKN
9
RXACLKP
10
LV
A
C
L
K
-
2
0
0
LV
A
C
L
K
+
1
9
9
LV
A
0
-
2
0
6
LV
A
0
+
2
0
5
LV
A
1
-
2
0
4
LV
A
1
+
2
0
3
LV
A
2
-
2
0
2
LV
A
2
+
2
0
1
LV
A
3
-
1
9
8
LV
A
3
+
1
9
7
LV
B
0
-
2
2
0
LV
B
0
+
2
1
9
LV
B
1
-
2
1
8
LV
B
1
+
2
1
7
LV
B
2
-
2
1
6
LV
B
2
+
2
1
5
LV
B
C
L
K
-
2
1
4
LV
B
C
L
K
+
2
1
3
LV
B
3
-
2
1
2
LV
B
3
+
2
11
D
D
R
_
D
0
0
1
2
3
D
D
R
_
D
0
1
1
2
2
D
D
R
_
D
0
2
1
2
1
D
D
R
_
D
0
3
1
2
0
D
D
R
_
D
0
4
11
8
D
D
R
_
D
0
5
11
7
D
D
R
_
D
0
6
11
6
D
D
R
_
D
0
7
11
5
D
D
R
_
D
0
8
11
2
D
D
R
_
D
0
9
11
1
D
D
R
_
D
1
0
11
0
D
D
R
_
D
1
1
1
0
9
D
D
R
_
D
1
2
1
0
7
D
D
R
_
D
1
3
1
0
6
D
D
R
_
D
1
4
1
0
4
D
D
R
_
D
1
5
1
0
3
V
R
E
F
1
2
7
D
D
R
_
C
K
E
1
2
8
DDR_CK-
129
130
BA1
131
BA0
132
RAS
133
CAS
137
WE
138
D
Q
S
1
1
0
2
D
Q
S
0
1
2
4
U
D
Q
M
1
2
6
L
D
Q
M
1
2
5
DDR_A11
153
DDR_A10
152
DDR_A09
151
DDR_A08
150
DDR_A07
146
DDR_A06
145
DDR_A05
144
DDR_A04
143
DDR_A03
142
DDR_A02
141
DDR_A01
140
DDR_A00
139
SCK
167
SDI
168
CSZ
169
SDO
170
H
W
_
R
S
T
2
4
8
ALE
164
RDZ
163
WRZ
162
INT
181
AD7
161
AD6
160
AD5
159
AD4
158
AD3
157
AD2
156
AD1
155
AD0
154
VCLAMP
26
REFP
27
REFM
28
REXT
21
HSYNC0 / FSSW0
41
VSYNC0 / FBLK0
42
BIN0
34
GIN0
36
SOGIN0
37
RIN0
38
BIN1
29
SOGIN1
30
GIN1
31
RIN1
32
HSYNC1 / FSSW0
24
VSYNC1 / FBLK1
25
BIN2
44
GIN2
46
SOGIN2 / FSSW2
45
RIN2
47
VSYNC2 / FBLK2
43
C1/CVBS7
48
Y1/CVBS6
49
C0/CVBS5
50
Y0/CVBS4
51
CVBS3
52
CVBS2
53
CVBS1
54
CVBS0
56
VCOM3
33
VCOM2
35
VCOM1
55
VCOM0
57
CVBSOUT1
59
CVBSOUT0
60
SIF0P
62
SIF1P
64
S
IF
M
6
5
A
U
V
R
A
D
N
6
7
A
U
V
R
A
D
P
6
8
A
U
V
R
E
F
6
9
A
U
L
0
7
1
A
U
L
1
7
3
A
U
R
0
7
2
A
U
R
1
7
4
A
U
C
O
M
7
5
A
U
L
2
7
6
A
U
L
3
7
8
A
U
R
2
7
7
A
U
R
3
7
9
A
U
M
O
N
O
8
0
A
U
O
U
T
L
3
8
1
A
U
O
U
T
R
3
8
2
A
U
O
U
T
L
2
8
3
A
U
O
U
T
R
2
8
4
A
U
O
U
T
L
1
8
5
A
U
O
U
T
R
1
8
6
A
U
O
U
T
L
0
8
7
A
U
O
U
T
R
0
8
8
X
IN
2
5
0
X
O
U
T
2
4
9
IR_IN
182
GPIO_B6
186
USB_VBUS
187
USB_DM
188
G
P
IO
_
E
3
2
2
3
G
P
IO
_
E
2
2
2
4
G
P
IO
_
E
1
2
2
5
G
P
IO
_
E
0
2
2
6
DDCDA_DA
22
DDCDA_CK
23
HPLUGA
20
DDCDB_DA
7
DDCDB_CK
8
HPLUGB
6
SAR3 / GPIOD3
174
SAR2 / GPIOD2
173
SAR1 / GPIOD1
172
SAR0 / GPIOD0
171
PWM0 / CONFIG0
175
PWM1 / CONFIG1
176
PWM2 / CONFIG2
191
PWM3 / CONFIG3
192
V
D
I0
8
9
V
D
I1
9
0
V
D
I2
9
1
V
D
I3
9
2
V
D
I4
9
3
V
D
I5
9
4
V
D
I6
9
5
V
D
I7
9
6
V
D
IC
L
K
9
7
D
I[
0
]
2
3
1
D
I[
1
]
2
3
2
D
I[
2
]
2
3
3
D
I[
3
]
2
3
4
D
I[
4
]
2
3
6
D
I[
5
]
2
3
7
S
P
D
IF
I
2
4
2
A
IW
S
2
4
3
A
IS
C
K
2
4
4
A
IS
D
2
4
5
A
U
S
D
1
2
4
6
A
U
S
D
2
2
4
7
G
P
IO
F
9
8
U
A
RT
0
R
X
/
I
C
L
K
2
2
7
U
A
RT
0
T
X
/
I
D
E
2
2
8
IH
S
Y
N
C
/
G
P
IO
2
2
9
IV
S
Y
N
C
/
G
P
IO
2
3
0
D
I[
6
]
2
3
8
D
I[
7
]
2
3
9
DDCA_CK / GPIO
180
DDCA_DA / GPIOD8
177
DDCR_CK / GPIOD9
178
DDCA_DA / GPIOD10
179
R32 0R R32 0R
R63 0R R63 0R
R74
0R
C37 1uF/10V
C27
100nF/25V C27
100nF/25V
D1
BAV70
R61 47R R61 47R
C8
100nF/25V
R28 0R/603 R28 0R/603
C6
100nF/25V
R37
4.7k/603
C25
1nF/50V
R46
10k
R
N
1
3
1 3 5 7
8 6 4 2
C10
100nF/25V
R
N
1
0
1 3 5 7
8 6 4 2
C24 100nF/25V
R36 22R R36 22R
C40 100nF/25V
C44
100nF/25V
C48 100nF/50V
C1
100nF/25V
10uF/6.3V
C3
L3
600R Bead 0603
R
7
7
2
.2
k
R
2
4
7
R
/6
0
3
R
2
C23 100nF 100nF
C46
100nF/25V
R
6
8
4
7
R
R
6
8
4
7
R
C30
100nF/25V
R
N
1
6
A
4
7
R
R
N
1
6
A
4
7
R
1 3 5 7
2 4 6 8
R64 0R R64 0R
R66 100R
R29
NC(10k)
L5
600R Bead 0603
L5
R50
10k/603 10k/603
R
5
7
1
0
k/
6
0
3
U2
MAX810
U2
MAX810
G
N
D
1
RESET
2
VCC
3
C13
10uF/25V
R1 1Meg
C22 100nF
RN3 A47R
1
3
5
7
2
4
6
8
R
3
0
1
0
k
R
3
0
1
0
k
R41 33R R41 33R
C4 20pF/50V
R53 47R R53 47R
C2
20pF/50V
L1
600R Bead 0603
R47
NC(10k)
R
3
4
7
R
R
N
8
1 3 5 7
8 6 4 2
C14
100nF/25V
C9
100nF/25V
R38
NC(10k/603)
R38
NC(10k/603)
R
N
5
A
4
7
R
R
N
5
A
4
7
R
1 3 5 7
2 4 6 8
100nF/25V
C7
R
N
1
2
1 3 5 7
8 6 4 2
C28
100nF/25V
C33
100nF/25V
R40 33R R40 33R
RN15 A47R RN15 A47R
1
3
5
7
2
4
6
8
U3
M24C32
A0
1
A1
2
A2
3
GND
4
SDA
5
SCL
6
/WP
7
VCC
8
C18 100nF
C32
10uF/6.3V
C34
100nF
C31
100nF/25V
C12
100nF/25V
R54 100R R54 100R
R79 2.2k
R
N
7
A
4
7
R
R
N
7
A
4
7
R
1 3 5 7
2 4 6 8
R35
4.7k
C29
10uF/6.3V/BOTTOM
R
4
5
2
.2
k
R
N
1
1
1 3 5 7
8 6 4 2
C39
100nF
C45
100nF/25V
C36 10uF/25V
R73 10k
60
0R
B
ea
d
06
03
4
3
4
3
13 12
11
14
5
3
4
3 4
!
@
#
$
5
switch on (trigger: 3V3_DIG)
Chassis - Scaler
Vorabversion
Preliminary Version