Grundig Lenaro 72 Flat MF 72-5610 Service Manual page 37

GRUNDIG Service
Chassisplatte – Hauptschaltplan / Chassis Board – Main Circuit Diagram
ZA9190-06
Subwoofer
STAND_BY
L_OUT
R314
R_OUT R_ OUT
220R
R315
D301
100R
1N4148
R316
TION HEADPHONE
10k
X301
HEADPHONE
R317
1 L_OUT C333
220n/ 1 6V
C320
220R
2
100n/ 1 6V R338
??
R311 3
4.7R
C323 R320
100n/ 1 6V
MUTE
10k
R321
10k
R322
15k
R323
5V
33k
R324
15k
T303
BC848B
B
X150
1
0
2 C340
Subwoofer
3
1u/100V
4
5
p
!
$
+15V
C328
R336
100n/ 2 5V
33k
C330
220n/ 1 6V
4
IN1 OUT1+
C329
R337
2.2n
??
OUT1-
7
ST_BY
9
S_GND NC
C331
IC303
47u/16V NC
12
IN2 NC
TDA7297
C332
2.2n 6
MUTE OUT2+
8
PW_GND OUT2-
5V
HS301
R318
1.5k AUDI O HEATSINK
R319
T301
BC848B
6.8k
C334
1u/100V
KABLO 3_B
+15V
C336
100n/ 2 5V
C335
C337 1000u/ 2 5V
1u/100V
5 4
MUTE OUT_L
R328
T302
18k
BC848B
7 IC304 8
IN+ L IN- L
C338 TDA7265
1u/100V
9 2
R325
GND OUT_R
15k
11 10
IN+ R IN- R
C339
R326
2.2n
220R
-15V
C341
100n/ 2 5V C342
1000u/ 2 5V
@ #
%
^
C327
R313
3.3k
1500u/ 2 5V
1
X302
2 4
3
5
10 2
11
1
15
SPEAKER
14
X604
1
TO P.3-29
2
X740
3
-15V
TILT
OPTION SUBWOOFER
R327
4.7R1W
C343
R329
100n/ 6 3V
470R
X303
R330
R331 2
18k
4.7R1W
1
C344
R332
100n/ 6 3V
470R
SUBWOOF ER
TO P.3-25
X807
X205
1
E/W_DRV
2
H_DRIVE
3
FLY_BACK
4
V_DRIVE(+)
5
V_DRIVE(-)
6
V_PROT
7
CONTROL
X207
SC L_EE
SDA_EE
SCL_3.3
SDA_3.3
SERVICE
SERVICE
D202
1N4148
3 - 21
18
TO P.3-26
X203
X805
1
CVBS_TUN1
2
3
CVBS_PIP
4
5
SC1_VID_IN
6
7 S1VI
SC1_VID_OUT
8
9 S1VO
SC1_F _BLANK
10
SC1_R _IN
11
SC1_G _IN
12
STATUS1
13
SC1_B_IN
R270
14
0R
15 S1RGB
C_IN
R272
16
Y_IN
0R
17
18
SC2_VID_IN
19
20 S2VI
SC2_VID_OUT
21
22 S2VO
STATUS2
23
24 S3VO
SC3_VID_OUT
25
26 S3RGB
SC3_F _BLANK
27
SC3_R _IN
28
SC3_G _IN
29
STATUS3
30
SC3_B_IN
SIGNAL
3.3V X204
TO P.3-25
1
X801
2
5V
3
4
12V
5
6
11
3.3V_S TB
7
12
8
13
9
PR OT.
14
10
MUTE
15
11
DEGAUSS
16
12
STAND_BY
13
MSP_ RESET
14
15
6 SC L_EE
16
5 SDA_EE
17
4 SCL_3.3
18
3 SDA_3.3
19
2 SERVICE
20
1
5V
PO WER
R266
4.7k
SDA
3.3V
R267
D201
19
1N4148
4.7k
T204
BC848B
5V
R268
4.7k
SC L
3.3V
R269
20
4.7k
T205
BC848B
Chassis 22.1 ME
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