Sony DCR-TRV30E Service Manual page 101

For Schematic Diagram
• Refer to page 4-69 for printed wiring board.
• Refer to page 4-87 for waveforms.
2 3
1
MI-043 BOARD(2/2)
NO MARK:IR ON/IR OFF MODE
IR TRANSMITTER
( ):IR ON MODE
[ ]:IR OFF MODE
A
-REF.NO.:30000 SERIES-
XX MARK:NO MOUNT
A_4.6V
A_2.8V
REG_GND
R1909
B
R1903
18k
IR_CARR
R1904
4700
IR_V_DEV
IR_A_DEV
R1905
4700
C
D
IR_VIDEO
1
TO(1/2)
C1909
10u 6.3V
P
R1901
47k
IR_L
IR_R
E
R1902
47k
F
R1906
5600
IR_FSC
G
IR_ON
SIRCS_PWM
VTR_UNREG
Q1901
2SD999-T1-CLCK
D1902 LED DRIVE
DCR2815
(IR EMITTER)
H
C1901
0.1u
B
D1901
DAC3825
R1907
(IR EMITTER)
18
1/16W
16
I
4 5
L1904
22uH
C1918
10u
C1915
L1905
0.01u 6.3V
P
XX B
C1916 C1917
C1912
0.01u 510p
15k
0.01u
C1905
B CH
L1901
B
0.01u
R1916
B
330
R1917
1k
C1914
4.7u
6.3V
P
36 35 34 33 32 31 30 29 28 27
CLAMP C1
C1902
1u 3
NC
B
0.9
V DEV ADJ
IC1901
C1903 [3.0]
NC
XX (2.3)
V IN
IR TRANSMITTER
[0]/(1.3)
REG
IC1901
AN2920FHQ-EB
NC
C1910
[3.5]/(2.3)
0.01u B
REF
C1906
0.6
0.47u
A DEV ADJ
B
[2.7]/(2.3)
[3.5]/(2.3)
Lch IN
[0]/(0.9) [0]/(3.0)
ALC C 1
[3.5]/(2.3)
[0]/(2.9)
Rch IN
C1907
0.47u
B
1 2 3 4 5 6 7 8 9 10 11 12
R1915
22k
± 0.5%
C1919 C1920
0.01u
B
Q1902 R1914
[8.3] 6.8
2SB624-T1BV4
8.3
(7.7) 1/16W
POWER SWITCH
C1908
10u
16V R1912
[8.3]
47k
B TA
(7.0)
Q1904
[0]
2SB1462J-QR(K8).SO
[5.7]
(1.3)
CURRENT DET
(4.7)
R1913
Q1903
1k
[0] UN9211J-(K8).SO
(0.7) SWITCH
[8.3]/(0.1)
[0]
R1910
(4.5)
10 C1913
1/10W 0.1u
B
4-73
6 7 8
C1927
C1922 C1925
33p
8p 39p
CH CH CH
L1902 L1903
R1927
5.6uH
33uH 33uH
± 5% 1500
± 10%
± 10%
4.6
[4.6]
(3.8)
Q1905
2SB1462J-QR(K8).SO
C1921
0.1u
SWITCH
B
[0]
(4.5)
26 25
R1929
[4.6]
470
(3.8)
DRV CL OUT
R1924 [0]
(1.2)
[0] XX
[0]
NC
(0.5)
(0.5)
DRV EM OUT
[0.5]
(2.0)
DRV SW
C1934 C1935
2 MIX OUT
0.01u 0.01u
[0]
R1928
B
B
(1.3) R1925
330
NC
470
[0]
(1.3)
MIX IN
R1922 C1930
NC
[2.5] 560 0.01u B C1933
(2.3) 22u
VRF OUT
4V
P
ARF OUT
R1923 C1931
STBY
0.01u
6800
B
CHUP C
C1932
0.01u
B
R1926
33k
R1921
R1920 150k
150k
C1923 C1924 C1926
C1929
1u 0.47u 0.47u 1u B
B 0.1u
B B
B
C1928
1u
B
SIGNAL PATH
VIDEO SIGNAL
AUDIO
CHROMA Y Y/CHROMA SIGNAL
REC
PB
9 10 11
R1930
33
4-74
DCR-TRV30/TRV30E
IR TRANSMITTER
MI-043 (2/2)