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BOOSTER +5V A
A B
PS +5V C
A26 A27 A16 A15 A28 A29 A30 A31 A32 A33 A24 A34 A35 A36
E
B
C
D
E
LB3907
J0JGC0000020
C3937 LB3908
0.01 J0JGC0000020
C3934 C3935
R3943 R3944 16V10 16V10
C3945 C3938
470 470 0.1 0.1
C3940
0.01
C3936 C3939
6V330 10V330
C3930 C3931 C3932 C3933 R3945 R3946
C3928 C3929 50V1 50V1 50V1 50V1 470 470
16V10 16V10
44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23
EXTEMAL ALWAYS VCC CLAMP 75 75 CONTROL VCC CLAMP
100K
100K
BUF BUF
CONTROL4 (5V+0.5V)
- DR DR (5V+0.5V)
-
GAIN CTL
AMP AMP LPF LPF (0,2,4,6dB) AMP AMP LPF LPF
GAIN CTL
(0,2,4,6dB)
6dB 6dB
AMP AMP
B34
AUDIO
SWITCH Rch
QR3001
UNR521300L
SW1R
A A A
SW1L
SW1
B B OR B (INV.)
LPF BUF LPF BUF
C C C
MUTE MUTE MUTE
SERIAL VIDEO
AUDIO CONTROL SWITCH
SWITCH Lch B35
SW2R
A A
SW2L A
SW2
B B B
Rch
BUF C
Lch
BUF C C
QR3005
IC3903 D D D
UNR521200L
(INV.)
C1AB00001776 MUTE MUTE MUTE
(SCART A/V BUFFER AND SWITCH)
D3001 R3025
B0AAED000003 1K
SW3R
A A A
SW3L
R3022
SW3
B B B 10K
LPF BUF LPF BUF
C C C
MUTE MUTE EXT MUTE CONTROL MUTE
(HLCH SW3B)
OPEN LOW NORMAL1
QR3004
UNR521100L
(S-VHS H :ON)
POWER SAVE FSS CONTROL
(HLCH SW3B) 10V REG TERMINAL
AMP OPEN LOW NORMAL1 100K (L.M.H) R3967
GAIN CTL 1500
AV2 (0.6dB) TO BLANKING
THROUGH TO REF (L)
(L) VIDEO SW3 AUDIO VCC 12V DC DATA CLOCK
Y/C(H) LPF VCC EXTEMAL
CLAMP (12V+0.5V)
- 100K INTERFACE
EXTEMAL EXTEMAL BUF
CLAMP CONTROL3 BLOCK Q3906
CONTROL1 CONTROL2 CLAMP R3969 2SB0710A0L
3300
AUDIO R AUDIO L SDA SCL R3950
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 68
C3922 R3951
0.01 15K
C3920 C3921 R3934 R3935 R3939 R3940 C3923 C3924 C3902 C3941 C3927 R3941 R3942 Q3907
50V1 50V1 10K 10K 2200 2200 16V100 0.01 16V10 16V10 0.01 100 100 2SD132800L
R3962
10K
R3936 R3938 R3937
15K 470 470 C3925 C3926 R3947
Q3905 10K
16V100 0.1
2SB1218A0L
(BUFFER)
QR3913
UNR521200L
LB3906 R3953
J0JGC0000020 22K
QR3908
UNR521200L
(AV2 RGB THRQUGH L :OFF)
F
G
H
I
J
K PS +5V
L BOOSTER +5V
M PS +12V
O
P
Q OSD +5V OSD +5V D
B36 B8 B37 B15 B16 B17 B38 B39 B40 B10 B41
R E
DMR-E75VEB/EG Video Section (Main P.C.B.(3/3) Schematic Diagram(V) DMR-E75VEB/EG Video Section (Main P.C.B.(3/3) Schematic Diagram(V)
S F
13 14 15 16 17 18 19 20 21 22 23 24