GRUNDIG Service
2 - 10
CUC 7301
Schaltungsbeschreibung / Circuit Description
Blockschaltbild
Block Circuit Diagram
FBAS/Y
CCVS/Y
CH
AUDIO-ZF + Lautstärke
AUDIO-IF+Volume
Matrix
PAL-NTSC-Decoder
FBAS
CCVS
FBAS/EURO AV
CCVS/EURO AV
FB
AS SC
CCVS SC
RGB
RGB
RGB
Y
R-Y
B-Y
Kontrast/Contrast
Helligkeit/Brightness
Farbkontrast/Colour Contrast
Sperrpunktregelung/Cut-off Control
CT2821
D2827
D2829
V
ideotext
IC2810
IC2807
11V
Spitzenstrahlstrom-
begrenzung/
Peak Beam
Current Limiter
Strahlstrombegrenzung
Beam Current Limiter
+8V
5,5MHz
Blank
20
16
U
DA
T
A
PERI
19
CT963
CT962
CD193
CT186
CT181
CT191
CD192
CD191
CR541
+B
virtuelle
Z-Diode
RGB
SW/BW
45/46
9/10
Tuner
AGC
BB
49
C127
2
Demodulator
Koinzidenz
Coincidence
Mikrocomputer
IC850
30
13
CT921
F926
5,5 Trap
F924
3
8
6
5
21
22…24
26 25 17 14
Audio 1
AV
MICROCOMPUTER IC850
CT916
CT917
1
50
51
5
13
15
8
19
15
17
CT840
Zeilentrafo
Line T
ransformer
IC150
4
7
16
1
3
NF
AF
Drawn Switch Position
= "Low" at Control Input
IC150 Pin16
47
12
9
U-FB
AS/CCVS
8
T686
+B (12V)
+8V
zur Zeilenendstufe
to Line Output Stage
37
10/36
CR686
R687
Horizontaltrigger
Triggering Horizontal
CT169
CR159
F
arbk
ontrast / Colour Contrast
K
ontrast / Contrast
Helligk
eit / Brightness
A
OFW F906
14
31
16
30
IC105
B-Y
R-Y
38
SSC
5
28
29
12
11
16
IC110
6
Euro AV Audio
10
9
15
16
1
SECAM
IDENT
5
9
7
14/1
SECAM-L
F931
32
27
F-Signal
Secam-
Decoder
Delay
Line
6
2
AV-Audio
VQ
10
AV-Audio
AM
IC950
Strahlstrom-
meßwiderstand/
Beam Current
Measurement
Resistor
SW
TDA8362A
2
3
MUTE
Q172
35
Gezeichnete Schalterstellung
= "Low" am Kontrolleingang
IC150 Pin16
11
IC320
8
Schiebe-
Register
Shift
Register
CIC130
32 31 33
7,11,15
U
VQ
CT2823
21
CT2823
CT2823
CT2832
U
DA
T
A-P
U
DA
T
A
CT110
12V
RGB OSD
CT2816…18
RGB
D2836…38
16 17 18
11
D2828
Audio
optional
