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A
A10 A11 A4
LB3922 J0JGC0000020
B
TO PP7401 C
MAIN P.C.B.
(MAIN NET SEC.) LB3923 J0JGC0000020
PS3901
IIC CLK 1 B1
G IIC DATA 2
3
B2 D
E
BOOSTER+5V 4 F
PS 5V 5 G
TUNER VIDEO 6 B3 H
GND 7 I
SCART VIDEO IN 8 B4 J
GND 9 R3914 150 K
CPS V OUT 10 B5 L
GND 11 R3919 150 M
CPN Y OUT 12 B6 N
GND 13 C3920 O
PS 12V 14 0.1 P
GND 15
PR OUT 16 B7
GND 17 C3921 C3923
PB OUT 18 B8 6V330 0.1
GND 19
PY OUT 20 B9
R3908 R3909 C3918 C3919
F 470 470 16V10 16V10 C3924
6V330
C3910 C3911 C3914 C3915 C3916 C3917 R3980 R3979 C3922 C3925
16V10 16V10 50V1 50V1 50V1 50V1 470 470 0.01 0.01
TO PP7402 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23
MAIN P.C.B.
(MAIN NET SEC.)
PS3902 EXTEMAL ALWAYS VCC CLAMP 75 75 CONTROL VCC CLAMP
100K
100K
BUF BUF
R/C OUT 1 A1 CONTROL4 (5V+0.5V)
- DR DR (5V+0.5V)
-
GAIN CTL
GND 2 (0,2,4,6dB)
AMP AMP LPF LPF AMP AMP LPF LPF
G OUT 3 A2
GAIN CTL
GND 4 (0,2,4,6dB)
B OUT 5 A3 6dB 6dB
E GND
AV2 VIDEO IN
6
7 A4
AMP AMP
GND 8
R/C IN 9 A5
GND 10 AUDIO
G IN 11 A6 SWITCH Rch
GND 12
SW1R
A A A
SW1L
SW1
B IN 13 A7 B B B
OR
GND 14
LPF BUF LPF BUF
AV2 8 15 A8
C C C
P50 16 A9
MUTE MUTE MUTE
17 B10
SERIAL VIDEO
18 B11 CONTROL SWITCH
AUDIO
SWITCH Lch
SW2R
A A A
SW2L
SW2
Rch B Lch B B
D BUF C BUF C C
IC3901 D D D
C1AB00001776 MUTE MUTE MUTE
(A/V BUFFER AND SWITCH)
TO PP7403
MAIN P.C.B.
SW3R
A A A
SW3L
SW3
(MAIN NET SEC.) B B B
PS3903
LPF BUF LPF BUF
PWR SAVE H 1 B12
C C C
SCART AUDIO MUTE H 2 B13 EXT MUTE CONTROL
MUTE MUTE MUTE
GND 3 (HLCH SW3B)
L3 IN R 4 A10 OPEN LOW NORMAL1
GND 5
L3 IN L 6 A11
GND 7
DECODER R 8 B14
C GND
DECODER L
9
10 B15
GND 11 POWER SAVE FSS CONTROL
MIX R OUT1 12 B16 (HLCH SW3B) 10V REG TERMINAL
GND 13 AMP GAIN CTL OPEN LOW NORMAL1 100K (L.M.H)
MIX L OUT1 14 B17 AV2 (0.6dB) TO BLANKING
THROUGH TO REF (L)
GND 15 VIDEO SW3 AUDIO VCC 12V DC DATA CLOCK
Y/C(H) (L) LPF EXTEMAL
VCC CLAMP (12V+0.5V) 100K INTERFACE
EXTEMAL EXTEMAL - CLAMP CONTROL3
BUF BLOCK
CONTROL1 CONTROL2 CLAMP
AUDIO R AUDIO L R L SDA SCL
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
C3928 C3929 R3972 R3973 R3904 C3930 R3911 R3912 C3931 C3932 C3933 C3934 C3939 R3975 R3976
B 50V1 50V1 10K 10K 33 0.01 2200 2200 50V1 50V1 16V100 0.01 0.01 100 100
C3935
16V100
R3985 R3913
4700 180
C3938
0.1
R3910 R3986
150 1200
J0JGC0000020
LB3925
Q
R
S
T
A U
B16 B17 B4 B5 B12 B13 B6 B14 B15 B3 B2 B1
V
DMR-E53EG,E55EB/EG/EBL/EP
Scart Schematic Diagram
W
1 2 3 4 5 6 7 8 9 10 11