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DCR-TRV24E/TRV25E/TRV27E
COVER
COVER
4-2. SCHEMATIC DIAGRAMS
VC-281 BOARD SIDE A
VC-281 BOARD SIDE B
4-2. SCHEMATIC DIAGRAMS
VC-281 BOARD SIDE A
VC-281 BOARD SIDE B
VC-281 (9/16)
4-53
4-54
For Schematic Diagram
• Refer to page 4-89 for printed wiring board.
• Refer to page 4-96 for waveforms.
• Refer to page 4-89 for printed wiring board.
• Refer to page 4-96 for waveforms.
R2.3
R0
1.9
P2.2
2.5
R3.5
R0.5/P1.1
4.7
1.4
R2.4/P1.5
R3.5
2.8
R0.5/P1.1
R0.3/P2.7
R0.5/P1.1
P2.3
R0.5/P1.1
R0.5/P1.1
2.8
0
R2.5/P2.1
4.7
2.8
2.6
P1.2
14
4.7
R0.5
R0.1
P1.1
R2.5/P2.1
0.7
2.8
0
4.7
P0.6
1.9
R0.9/P0
R0.7 P2.6
2.8
P1.3
0.1
R1.1
R0.5/P1.1
P1.9
1.9
2.8
R3.6/P1.7
2.7
2.6
R4.6
0
1.3
R3.3/P1.7
P2.4
1.9
1.9
R0
R1.8
R0
R3.3/P1.7
R3.6/P1.7
P1.3
R2.9
R3.3/P1.7
4.7
P2.6
P0
13
1.2
P2.4
R3.6/P1.7
P0
R3.6/P1.7
P2.3
17
16
15
0.9
R1.9/P0
R3.3/P1.7
P2.6
R2.9
14
R0.7
R0.9/P0
4.7
R2.3
R1.8/P0
NO MARK:REC/PB MODE
R :REC MODE
P :PB MODE
R :REC MODE
P :PB MODE
CXA2071R-T4
IC1901
1
CP TC2
2
F
AST ACCESS
3
PLL GND
4
PD HOLD
5
REC DA
T
A
6
PLL VCC
7
REC XP
8
AD A VCC
9
LOCK MON
10
VRB
11
VR
T
12
AD A GND
13
CLK
14
AD D VCC
15
DATA0
16
DATA1
17
DATA2
18
DATA3
19
DATA4
20
DATA5
21
AD D GND
22
XSCK
23
VDD
24
SI
25
XCS
26
S IO GND
27
N.C.
28
N.C.
29
A
TF1
30
I/O VCC
31
JSWP
32
A
TF OUT
33
BUF VCC
34
BUF OUT
35
AGC VCC
36
AGCTC1
37
AGCTC2
38
AGC GND
39
DC_TC1
40
DC_TC2
41
TESTIN
42
IN
43
F VCC
44
DECUP
45
R REF3
46
R REF2
47
F GND
48
CP TC1
CXA2072R-T4
IC1902
1
XE
2
YE
3
D2E
4
GND
5
DIO
6
XO
7
YO
8
D2O
9
GND
10
D1L
11
XL
12
YL
13
D2L
14
GND
15
GND
16
GND
17
FBDP_R
18
PEAKT_IR
19
PEAKI_IR
20
RECI_IR
21
PB_IR
22
RECCONT_E
23
RECCONT_O
24
CL
25
CO
26
CE
27
PBYOUT
28
VCC2
29
PB X OUT
30
GND
31
RECA2
32
VCC3
33
RECA1
34
PBSW_PS
35
CONT0
36
CONT1
37
ALL_PS
38
TEST
39
VDD
40
CLK
41
GND
42
DA
T
A
43
VCC1
44
NC
45
GND
46
GND
47
GND
48
D1E
B
0.1u
C1913
12k
R1906
10k
R1907
22k
R1915
22k
R1912
± 0.5%
220
R1917
± 0.5%
220
R1918
± 0.5%
220
R1919
± 0.5%
220
R1916
470
R1908
0.033u
B
C1915
150k
R1904
0.1u
B
C1903
0.01u
B
C1901
0.01u
B
C1909
0.01u
B
C1907
0.01u
B
C1911
0.01u
B
C1918
0.01u
B
C1923
0.01u
B
C1924
± 5%
10k
R1914
0.1u
B
C1927
0.1u
B
C1926
RP_4.75V
A_2.8V
0.01u
B
C1914
REC_CRRT0
REC_CRRT1
4700
R1910
XCS_TRF
SWP
0.01u
B
C1922
10uH
L1901
0.01u
B
C1902
XVSP_SCK
VSP_SO
10uH
L1902
REG_GND
RF_IN
RF_MON
FB1901
0uH
PBCK
CTRL0
RECCK
ADDT2
ADDT5
ALL_PS
PLLSW
RECA2
RECDT
ADDT4
ADDT3
ADDT1
RECA1
PLLMSK
SW_PS
ADDT0
CTRL1
0.01u
B
C1905
10uH
L1903
6.3V
1u
C1904
D_1.9V
6.3V
10u
C1908
A
R1905
68
2SA1832F-Y/GR(TPL3)
Q1901
1u
B
C1906
10P
CN1901
1
2
3
4
5
6
7
8
9
10
± 5%
10k
R1913
10k
R1901
6800
R1902
B
470p
C1910
B
470p
C1916
12k
R1909
47p
CH
C1917
47p
CH
C1912
0.01u
B
C1919
B
0.1u
C1921
B
0.1u
C1920
1M
R1903
10k
R1911
XX
C1925
1
A
REC_CRRT0
REC_CRRT1
ALL_PS
SW_PS
RECA2
REC_CRR
T0
REC_CRR
T1
RECA1
RECCK
RECDT
PLLSW
RECDT
PLLMSK
SWP
VSP_SO
XVSP_SCK
XCS_TRF
XVSP_SCK
VSP_SO
SWP
XCS_TRF
SW_PS
ALL_PS
CTRL1
CTRL0
RECA2
PLLSW
PLLMSK
RECCK
RECDT
RECA1
CTRL0
CTRL1
YSDL
XEVEN
GND
GND
XODD
XSDL
GND
GND
YEVEN
YODD
ODD
EVEN
VIDEO HEAD
J-MECHANISM
(1/2)
(1/2)
IC1901
A/D CONV.PLL
REC/PB AMP
IC1902
Y/CHROMA
SIGNAL PATH
CHROMA
AUDIO
SIGNAL
Y
PB
VIDEO SIGNAL
REC
XX MARK:NO MOUNT
REC/PBAMP(RF BLOCK)
VC-281 BOARD(9/16)
H
2
3
12
9
G
11
E
C
10
14
13
6
B
7
I
D
F
15
5
8
4
16
16
REC
PB
REC/PB
Ref.signal
SIGNAL PATH
(16/16
(CN1002))
(CN1002))
61
(16/16
(CN1007))
(CN1007))
59
(7/16)
52
31
(4/16,7/16,
10/16,13/16,
14/16,16/16
(CN1007))
10/16,13/16,
14/16,16/16
(CN1007))
60
(14/16)
AUDIO/
SIGNAL
VIDEO/
SERVO
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