Sony DSR-250 Service Manual page 100

DSR-250/250P
For Schematic Diagram
• Refer to page 4-63 for printed wiring board.
• Refer to page 4-123 for waveforms.
1
VI-156 BOARD(8/25)
LINE A/D CONV(IN BLOCK)
A
-REF.NO.:10000 SERIES-
XX MARK:NO MOUNT
2 TO(1/25,2/25,
3/25,6/25)
43
TO(25/25)
B 6
TO(25/25)
10
TO(25/25)
C
NOT USE
D
61
TO(7/25)
E
8
TO(1/25,7/25)
64
TO(7/25)
F
G
H 60
TO(7/25)
I
16
LINE A/D CONV.
VI-156 (8/25)
2 3 4
NO MARK:REC/PB MODE
R :REC MODE
P :PB MODE
SPCK
A_2.8V
R904
Q904
XX
2SA2018-H-T2L
REG_GND
A_4.6V
L901 R4.9/P5.0
10uH
R4.9/P5.0
R912
10k
C904 R909 R4.9/P5.0
10u 47k
10V
TA
Q905
UN9213J-(K8).SO
Q903
2SD2216J-QR(K8).SO
R907
10k
C901
R957
0
10u
2200
TAKO_Y_OUT2
6.3V
R908
P
10k
0
Q906
R958
2SB1462J-QR(K8).SO
1k
0
Q902
TAKO_Y_OUT 0
2SB1462J-QR(K8).SO
C936
R911
1.2
47p R956 680
3900
CH
TAKO_C_OUT
C903
0.01u
B
R916 C936
47p
470
CH
ALIGN_APC_ERROR
AGC_CONT
ACC_CONT
C902
0.01u
B
TAKO_CK
SIGNAL PATH
VIDEO SIGNAL
CHROMA Y Y/CHROMA
REC
PB
4-27
5 6 7 8
L902 C910
10uH
10u
R954
6.3V
100
P
0
R955
100k
R930
0
C935
22p
0 CH
C922
1u B
R0/P*
80 79 78 77 76 75 74 73 72 71 70 69 68
0
C911
1u B
0 0
50
ADABOT
51
0
ADAIN
C912
0
ADATOP
1u B
3.1
C913
ADAVDD
0.01u
B
ADAVSS
0
AD8IN
C914 0
AD8BOT
1u B
3.1 IC903
C915
AD8VDD
0.01u B
AD8VSS
(ALIGN)
C916 0
AD8TOP A/D CONVERTER
1u
B
*
C917
AD8TB
1u
B
DAVSS IC903
R2.0/P0
C918
DAREF MB87L1241PFV-G-BND-ER
1u B
R2.0/P0
APCVO
0.8
AGCVO
1.2
CLPVO
0.8
ACCVO
C919
*
0.01u B DATOP
*
C920
DABOT
0.01u B
3.1
DAVDD
C921
0.01u
B
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
R936
0
R924
R953
0
0
C926 R932 C928 C929
0.1u 0.01u
XX 0.1u
B B B
9 10 11
FB901
C931
C933
0.1u C932
10u
B 0.01u
6.3V
P
67 66 65 64 63 62 61
TS0
0
DYOUT0
R1.1/P0
DYOUT1
R1.1/P0
DYOUT2
R1.2/P0
DYOUT3
R1.9/P0
DYOUT4
R0.6/P0
DYOUT5
R1.3/P0
DYOUT6
0
DYOUT7
DVSS2
2.9 C934
0.1u
DVDD2
R1.2/P0 B
DCOUT0
R1.2/P0
DCOUT1
R1.1/P0
DCOUT2
R1.0/P0
DCOUT3
R0.7/P0
DCOUT4
R1.0/P0
DCOUT5
R1.2/P0
DCOUT6
R1.2/P0
DCOUT7
3.0
XRST
TCK
R949
C930
0
0.1u TMS
B
TD_3-4
TDO
4-28
12 13 14
35 TO(4/25,13/25,
16/25,17/25)
HI_SI
66
TO(17/25)
XCS_ALIGN
TO(4/25,9/25,17/25,
34
HI_SO
22/25,23/25)
32 TO(4/25,9/25,13/25,16/25,
XHI_SCK
17/25,22/25,23/25)
XSYS_RST 26
TO(17/25)
D_2.8V 16
TO(25/25)
IFI_Y0
IFI_Y1
IFI_Y2
IFI_Y3
IFI_Y4
IFI_Y5
IFI_Y6
IFI_Y7
20
TO(3/25)
IFI_C0
IFI_C1
IFI_C2
IFI_C3
IFI_C4
IFI_C5
IFI_C6
IFI_C7
19
TO(3/25)
IFI_HD
18
IFI_VD TO(3/25,9/25,13/25)
IFI_OE 17
TO(3/25,13/25)
25
TO(5/25)
AFCK
TCK
22
TO(22/25)
TMS
51
TO(5/25)
TD_3-4
67
TDO TO(22/25)