Circuits imprimés et schémas électriques / Layout of PCBs and Circuit Diagrams
Circuits imprimés et schémas électriques / Layout of PCBs and Circuit Diagrams
4 - 23
GRUNDIG Service
4 - 24
GRUNDIG Service
Circuit principal – Etage FI EURO / Family Board – Frontend (FV)
26
2.6-9V
5.5-9V
2.9V
2.9V
2.9V
2.1V
0E
3915
TDA9800T
K2955M
270E
270E
3746
560E
TDA9812T
7721
BP 5,5MHz
BP 5,5MHz
TRAP 5,5MHz
TRAP 5,5MHz
1701
VERSION
Pos.
*
UV916E
UV916E
1720
G1984M
1740
1745
3745
560E
560E
U944C
J1952M
TRAP 6,0MHz
BP 6,0MHz
560E
1746
UV916E
TRAP 5,5MHz
BP 5,5MHz
BP 6,5MHz
560E
BP 6MHz
TRAP 6MHz
UV916E
J1952M
560E
TDA9800T
TDA9800T
TDA9800T
7720
3747
1721
K6256K
1722
L9453M
PAL-BG
PAL-I
PAL-I-IR
PAL-BG/SEC-L
PAL-BG/SEC-DK
PAL BG/SEC L
H = PAL BG
L = SEC L
H = SEC L'
L = PAL, SEC L
for TDA 9800 only
for TDA 9812 only
2746, 3706, 3732, 3760, 3910, 3912, 3916, 3918, 3919, 3922.
2741, 2744, 2749, 2750, 3704, 3735, 3764, 3911, 3913, 3917, 3923, 3924, 3940
1741
5740
15uH
15uH
15uH
15uH
2706
1n
1n
1n
1n
220p
3709
0E
0E
0E
0E
100E
270E
330E
270E
15uH
...V MEASURED IN PLAYBACK MODE
...V MEASURED IN RECORD MODE
2
0V
2.4V
1.6V
2V
3.2V
2.2V
2.4V
2.4V
2.2V
2.2V
2.3V
2.6V
2.8V
2.8V
2V
2.1V
2.6V
5.2V
4.7V
2.4V
1.7V
1.7V
1.7V
3V
3.1V
0V
2.6V
1V
0.1V
0.7V
3.3V
3.3V
2V
2.6V
2.9V
2.9V
not used
*
*
*
OFW
*
32.4MHz
Band 1
40.4MHz
*
AGC-Adj.
NC
for PAL-BG/SEC-L
only for SEC-L or PAL-BG/SEC-L
BAND-1
OFW
OFW
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
FROM DE
Adj.
AFC-Adj.
TO DE
FROM DE
2704, 2705 not used
delete for MULTISTANDARD
for MULTISTANDARD only
4
5
6
1
7
8
9
10
11
12
13
14
15
16
17
2
3
H
G
F
K
E
D
C
B
A
J
I
4
5
6
1
7
8
9
10
11
12
13
14
15
16
17
2
3
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
390E
3732
22k
3744
100k
3825
22k
3705
2k7
3782
27k
3726
8k2
3725
1k
3701
100k
3832
4k7
3834
4k7
3833
1k2
3721
560E
3745
100E
3703
100E
3702
560E
3746
2k7
3720
180E
3735
3747
680E
3704
47k
3830
0E
3911
0E
3910
680E
3706
0E
3913
0E
3912
0E
3916
0E
3917
0E
3918
0E
3919
0E
3915
3709
4k7
3829
10u
2703
2u2
2740
2u2
2750
22u
2708
5VSWA1
5VSWA1
+12ASWS
+33V
5VSWA
5VSWA
5VSWA
+12ASWS
5VSWA
5VSWA
AGC
PSS
SCL
SDA
SB1
BC848B
7727
BC848B
7824
BC848B
7823
BC848B
7724
8u2
5723
6u8
5727
5740
6u8
5702
1u
5720
8u2
5724
100n
2746
10n
2721
2743
100n
2741
100n
2700
100n
2701
100n
2702
2706
10n
2723
8p2
2748
220n
2749
2739
2704
2705
120p
2707
1n
2722
41645
5725
6
4
1
2
3
41645
5721
6
4
1
2
3
1740
1
3
2
1741
1
3
2
22k
3742
22k
3748
BA582
6825
BA582
6826
BA582
6722
BA582
6723
TDA9812T
7721
21
22
2
1
20
1
3
6
25
8
23
1
12
2
9
14
7
27
28
15
4
16
5
1
19
18
17
26
MIXER
INTERCARRIER
AM DEMODULATOR
SIF AGC
SIF AMP.
1701
11
12
13
14
15
16
17
5
6
MT
III
U
I
U
III
III
U
I
I
CL
RF
CS
VCC1
AGC
DA
VCC2
IF
AMP
BPF
MIX
VCO
MIX
VCO
AGC
AGC
PLL
BPF
BPF
7726
DTC124EK
1721
10
2
5
4
1
3 6 7 8
1720
5
4
1
2
3
1722
5
4
1
2
3
1746
3
2
1
1745
3
2
1
7720
TDA9800T/V3
10
11
12
13
14
15
16
17
18
19
1
20
2
3
4
5
6
7
8
9
DETECTOR
VIDEO
VCO
WAVE
IF
AGC
DIVIDER
DETECTOR
TRAVELING
DETECTOR
FREQUENCY
AND PHASE
DEMODULATOR
AGC
TUNER
AGC
8p2
BUFFER AND
CLIPPING
NOISE
AFC
AMPLIFIER
VIDEO
AMPLIFIER
FM-PLL
AF
VIF AMP
IRV