Panasonic DMR-E53EG Service Manual page 147

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