Grundig Lenaro 72 Flat MF 72-5610 Service Manual page 27

GRUNDIG Service
Chassisplatte – Hauptschaltplan / Chassis Board – Main Circuit Diagram
ZA1190-17
S_OUT S_OUT
STAND_BY
L_ OUT L_ OUT
R314
R_OUT R_OUT
220R
R315
D301
100R
1N4148
R316
ION HEADPHONE
10k
X301
HEADPHONE
R317
1 C333
220n/16V
C320
220R
2
100n/16V R338
??
R311 3
4.7R
C323 R320
100n/16V
MUTE
10k
R321
10k
R322
15k
R323
5V
33k
R324
15k
R325
T303
15k
BC848B
X150
1
2
C340
R326
3
220R
1u/100V
4
5
!
$
+15V
C328
R336
100n/25V
33k
C330
220n/16V
4 1
IN1 OUT1+
C329
R337
2.2n 2
??
OUT1-
7
ST_BY
9 5
S_GND NC
C331
10
IC303
47u/16V NC
12 11
IN2 TDA7297 NC
C332
2.2n
6 15
MUTE OUT2+
8 14
PW_GND OUT2-
5V
HS301
R318
1.5k AUDIO HEATSINK
R319
T301
BC848B
6.8k
C334
1u/100V
KABLO 3_B
+15V
C336
100n/25V
C335
1000u/25V
C337
1u/100V
5 4
MUTE OUT_L
R328
T302
18k
R329
BC848B
7 IC304 8
IN+ L IN- L
470R
C338 TDA7265
1u/100V
9 2
GND OUT_R
R330
18k
11 10
IN+ R IN- R
R332
C339
2.2n 470R
-15V
C341
100n/25V C342
1000u/25V
@ #
%
^
C327
R313
3.3k
1500u/25V
X302
4
3
2
1
SPEAKER
X604
1
TO P.3-29
2
X740
3
-15V
TILT
OPTION SUBWOOFER
R327
4.7R 1W
C343
100n/63V
X303
R331 2
4.7R 1W
1
C344
100n/63V
SUBWOOFER
TO P.3-25
X807
X205
1
E/W_DRV
2 12
H_DRIVE
3
FLY_BACK
4 14
V_DRIVE(+)
5
V_DRIVE(-)
6 16
V_PROT
7
CONTROL
X207
6
SCL_EE
5
SDA_EE
4
SCL_3.3
3
SDA_3.3
2
SERVICE
1
SERVICE
D201
1N4148
D202
1N4148
3 - 11
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_STB
7
8
13
9
PROT.
10
15 MUTE
11
DEGAUSS
12
STAND_BY
13
MSP_RESET
14
15
SCL_EE
16
SDA_EE
17
SCL_3.3
18
SDA_3.3
19
SERVICE
20
5V
POWER
R266
4.7k
SDA
3.3V
R267
19
4.7k
T204
BC848B
5V
R268
4.7k
SCL
3.3V
R269
20
4.7k
T205
BC848B
Chassis 22.1 ME
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