Rec/Pb Head Amp - Sony DCR-PC100 Service Manual

For Schematic Diagram
• Refer to page 4-47 for printed wiring board.
• Refer to page 4-90 for waveforms.
1 2 3 4
MR-44 BOARD(4/5)

REC/PB HEAD AMP

A
(RF1 BLOCK)
-REF.NO.: SERIES-
XX MARK:NO MOUNT
NO MARK:REC/PB MODE
R :REC MODE
P :PB MODE
B
SI
13
TO(1/5,3/5) DATA_FROM_MS_DRP
XCS
38
TO(1/5) XCS_TRF
XSCK
37 XMS_SCK_DRP
TO(1/5,3/5)
CONT_E
REC_CRRT0
14
TO(1/5) CONT_0
REC_CRRT1
18 TO(1/5) SWP
C
PBCK
CAP_EVR
CAP_EVR
10
TO(2/5) REEL_EVR DATA0
REEL_EVR
D
DATA1
DATA2
DATA3
DATA4
DATA5
E
F
RF_MON
15
TO(1/5)
RF_IN/LANCJKIN
G
SW_PS
SW_PS
CONT0
CTRL0
CONT1
CTRL1
H
ALLPS
ALL_PS
PLLMSK
PLLMSK
RECA2
RECA2
PLLSW
PLLSW
RF_RECCK
RECCK
RF_RCDT
12 TO(3/5)
RECDT
RECA1
RECA1
I
PBCK
PBCK3
DATA5
ADDT5
DATA4
ADDT4
DATA3
ADDT3
DATA2
ADDT2
DATA1
ADDT1
DATA0
ADDT0
J
16
5 6 7 8
Q1810
2SB1462J-QR(K8).SO
R0/P2.5
R1875
10k
1.9
R1876
6800
C1846
0.01u
B
C1838
0.01u
C1837
C1834 B
0.01u C1850
0.01u
B 47p
B CH
C1891
0.01u
B
R1828
R1826
470
150k
12 11 10 9 8 7 6 5 4 3 2 1
R1872 R0/
0 P1.0
CLK(PB_41.85MHz) CP TC1
R2.2/P2.0
4.6
AD D VCC F GND
R1879
12k
R0/P1.1 R0/P1.2
DATA0
R REF2
R0/P1.1 R0/P0.6
IC1814
DATA1 R REF3
R0/P1.1 R2.2/P1.8
DATA2 16 DECUP
R0/P1.1 EQ, 2.8
DATA3
A/D CONV. F VCC
C1878
R0/P1.1 R0/P2.6
PLL
DATA4 IN
R0/P1.1 IC1814 2.8
DATA5 CXA2071R-T4 TESTIN
C1888
AD D GND DC_TC2 0.01u
2.7
XSCK B
XSCK DC_TC1
1.9
VDD AGC GND
SI
SI AGCTC2
C1833
0.1u
B
25 26 27 28 29 30 31 32 33 34 35 36
R1874
1M
XCS
REEL_EVR
CAP_EVR
C1840 C1844 C1890
0.1u 0.1u 470p
B B B
4-57
9 10 11 12
C1884
R1848 C1866
0.01u
10k XX
B
B
R1852
4700
24 23 22 21 20 19
C1889
0.1u
B
R0/P2.2
CO
C1885 B
C1856 R0/P2.1
0.1u
0.01u R4.0/P2.3 CE
C1886
R1869 12k
B 0.1u 19
B
PBYOUT
R1870 10k 4.5
IC1816
VCC2
C1804
0.01u
PB X OUT
B
GND REC/PB
0.1u B
R1.8/P0 HEAD AMP
RECA2
RECA2
IC1816
2.8
CXA2072R-T4
VCC3
RECA1 R1.8/P0
17
RECA1
R1.9/P0
SW_PS
PBSW_PS 20
CONT0 0.9
CONT0
CONT1 1.9
CONT1
21 22
C1881
470p
B
C1860
0.1u
B
37 38 39 40 41 42 43 44 45 46 47 48
ALLPS
RF_RECCK
RF_RCDT
C1875
10u
6.3V
P
R1871 C1845 C1847 C1887
68 10u
10u 0.1u
6.3V 6.3V
B
P P
L1803 L1808 L1811
10uH 10uH 10uH
FB1802
FB1801
0uH
0uH
1608
1608
13 14 15 16
SIGNAL PATH
CHROMA
REC
PB
SIGNAL PATH
R1846
Ref.signal
XX
± 0.5%
1005
18 17 16 15 14 13
YL CN1810
R3.2/P1.7
XL 10 GND
R3.2/P1.7 R1853
± 0.5%
D1L XX 9 YSDL
1.2
1005
GND 8 XSDL
R3.4/P1.7 R1855
± 0.5%
220
D2O 7 GND
1005
YO 6 YODD
18
R3.2/P1.7
XO 5 XODD
R3.2/P1.7
R1857
± 0.5%
DIO 220 4 GND
R3.4/P1.7
1005
GND 3 YEVEN
R1859
D2E ± 0.5% 2 XEVEN
220
R3.4/P1.7
1005
18 YE 1 GND
R3.2/P1.7
XE
R3.2/P1.7
R1843
220
± 0.5%
1005
LND1800
A
LND1801
A
C1869
0.01u
B
41
RP_4.6V TO(1/5)
40
GND TO(1/5)
46
4.6V TO(1/5)
2.8V
44 TO(1/5)
1.9V
47 TO(1/5)
4-58
DCR-PC100/PC100E
17 18 19
VIDEO SIGNAL
AUDIO
Y Y/CHROMA SIGNAL
MECHANISM DECK
10P
BLOCK (2/2)
GND 10
(D300 MECHA)
YSDL 9
XSDL 8
VIDEO HEAD
GND 7
YODD 6
XODD 5
ODD
GND 4
YEVEN 3
XEVEN 2
GND 1 EVEN
REC/PB HEAD AMP
MR-44 (4/5)