Grundig Davio 21 T 55-4501 Text Serviceanleitung Seite 14

GRUNDIG Service
Hauptteil / Main Part - X1X.190
3.3V
R301
15k
BC848
C301
10n
SECAM AM
IF
R137
10k
R143
47k
L/L'
R141
10k
AM_OUT
R144
47k
L/L'
C172
10n
IF
TU101
TUNER
C104
C118
10n
47u/16V
R157 D103
12k
1N4148
R184
100k
HOTEL TV
SCL
SDA
C128
47p
CAB. 2A CAB. 3A
C308
R303
470n
15k
T301
R302
R308
1.8k
1M
12.5V
R306
4.7R 1.5W
C307
220u/25V
8V
10uH
L101
8V
R152
C110
2.2k
1n
R145
1.5k
D102
BA682
T106
R150
BC858
47k
T107
R146
R151 BC848
1k
47k
8V
T103
BC848
C117
R148
1u/63V
1k
R182
2.2k
T111
BC848
)
R158 R159
100R 100R
C174
4.7u/50V
C131
C102
10u/63V
10n
C129
47p
1 16
+INA +INB C306
10u/63V
2 15
NC NC
C302
2.2n
3 14
-INA -INB
C303
4 13
GND GND 10n
5 12
GND GND
6 11
OUTA OUTB
7 10
R304
NC NC
4.7R
8 9
VCC NC
TDA2822
C304
IC301
100n
C121
R155
C126
47n 100R
47u/16V
R154
6.8k
K9656M F101
1 4
2 5 IC104
TDA9830
R153
1
IF_IN
2.2k
2
NC
3
C_AGC
C124
4.7u/16V 4
C_REF
5
C125
NC
4.7u/16V
6
AM_OUT
C171
7
220n
AM_IN SWITCH
8
AF_OUT EXT_IN
R183
220R
15
GND4
14
GND3
13
GND2
12
GND1
%
F102
G1985M
1
20
L110
1uH
2
R112
R147
33V
0R
1k
C114
100p
5V
L102
10uH
^
C113
100p
R161
3.9k
R162
680R
3 - 4
3.3V
10k
KEYB
X301
SPEAKER
3
2
1
R305
4.7R
C305 R107
100n 3.3k
AV_SEL
SCL
C127
47n
SDA
ONLINE
KEYB
PROT
R101
3.3k
STATUS
16
IF_IN
C101
15
10n
NC
MUTE
14
V_P1
L/L'
13
GND
12
MUTE
11
L103
V_P2 8V
10uH
10
C135
9
100u/16V
16
VDRB
C133
VDRA
1u/50V
R140
C134
15
100R
2.2u/50V
R164
100R
5
C149
3.3n
4
R149
1k
C138
10n
C177
22n
Chassis E4
3.3V
R127
R110
1.5k
R125
680R
R123
R109
2.2k 0R
C109
SW101
1n
VOL- SEL
5V
3.3V
R113
R108 R114
3.3k
3.3k 3.3k
R117
100R
R118
100R
R121 100R
R105
100R
R167 100R
100R
R160
R122 3.3k
R166
C103
100R
10n
C111
R103
10n
100R
R133
100R
C155
220n
C156
C139
C154
100n
2.2n
220n
R102
15k
C148
4.7n
C151
C140
1n
C116
100n
4.7u/50
C150
1n
R163
100R
R173 39k
C141
100n
C132
10u/63V
R185
2.7k
C175 C176
4.7n 820p
8V
R187
R196 R186
680R
1k
390k
T10
BC8
R188
270R