Video Signal Processing (Vs) - Philips VR120 Service Manual

Circuit diagrams and PWB layouts, Wiring diagram

7.12 Video Signal Processing (VS)

1 2
AH2
AHC
AH1
A
F1111
11
F1110
B
10
F1109
9 9
F1108
8 8
F1107
7 7
F1106
6 6
F1105
5 5 F1104
4 4 F1103
C
3 3 F1102
2 2 F1101
1 1
1911
1912
for 4/2 Head only
for mono only
FE-BT-VK-NAW FE-BT-VK-N
D
E
TRIV
F
I875
3030
9801
33K
only for LA71595AM
F017
ENVC
70
G
Interconnections:
AF page 73
Attention for pos. 7004-B!
AL page 72
If on pos.7004-B a LA71595AM
version is inserted and will be replaced by
AIO1 page 66
a LA71595BM, then remove also
AIO2 page 65
pos. 3030 (33K) and pos. 3031 (2M2)
H
DE page 67
and carry out the SPC adjustment!
FM ST page 70
FM NIC-page 71
FV page 69
FOME page 78
I/O page 77
I
PS page 64
.. OSCILLOGRAMS
VPO page 76
..V MEASURED IN PLAYBACK MODE
VS page 75
..V MEASURED IN RECORD MODE
VS_S page 74
1 2
VR120
3 4 5 6
87
3001
1K5
GNDVS
F083
5V
I045
4.9V
for SECAM only
3.9V
5VA
GNDVS
GNDVS
1.8V
0.8V
0.8V 0.8V
0V 3.9V
84 83 82
81 74
0.8V
85
REC_H
2020
86
10u
5.1V
5V
2021
REC_H
87
RF_SW
100n HPLL
1.9V
4.2V
88
1.9V
4.1V
89
1.9V
4.1V
90
2V
4.2V
ENV
91
DET
0.3V
1.7V REC_FM
2027 I054
92 AGC2
REC_FM
AGC_DET
1u
+
3.1V
GNDVS F016
93
COMP_OUT
0.3V
0.5V
94
SVHS:OPEN
FM
REC REC
AGC
FM_AGC1 FM EQ
P R
GNDVS
PB-EQ
7004-B
MTA/CROT RF_HA_SW
LA71595BM
10 11 12 13 14
0.7V
1.8V 1.5V
0.8V 2.6V
(LA71595AM)
5V 1.4V 1.4V
5VA
71 47
GNDVS GNDVS GNDVS
GNDVS GNDVS
4.1V
1.7V
1V
7003
BFS20
C002
73
C001
GNDVS
GNDVS GNDVIO
GNDVS
3 4 5 6
7. 75
7 8 9
5.1V
I001
7005
BC847BW
2.7V
2.1V
GNDVS
89
3.2V
GNDVS
LA71595BM-
for Secam only
2004
88
10n
GNDVS
10n
2007
GNDVS
1001
HC-49/U
GNDVS
4M433619
3.4V 1V 4V 0V 0.4V
0.8V 0.25V
2.5V 3.2V 2.5V 2V 0.9V 3.9V 2.7V 2.1V
64 63
73 72 71 70 69 68 67 66 65
C-GND
VXO2
320/321
MES_DET
FH_VCO
R
PB_BGA LPF
AFTER COMB
PILOT PHASE
KIL_DET AMP
P
BG ALT P
R
COR
BPF
REC PB REC
KIL D.E. APC APC AFC
ID_DET PB_BGA
HPLL BEFORE
HA_SW NAP
P
P
KIL R P
REC R
C_LPF
B.D.
BGA
R
Y.N.R.
MAIN P
CONV + B-UP
P
AMP ACC
Y_LPF
R
R
ACC
BPF2 BALANCER
DET
SUB_LPF
P
R
DETAIL
ENHANCER
FM-DEM
V/I
NON_LIN 1/2
CONVERT
EMP
DOUBLE
FM W.D. P
LIMITER R
MOD CLIP
BLUE CHARA
BACK INSERT
REC:EE-AGC_TC1
IIC
PB:M.C.BALANCER P
R
CLAMP CLAMP
Y_VCC Y-GND
23 24 25
15 16 17 18 19 20 21 22
2.4V
1.8V 2.4V 3V 2.5V
2.3 5V 0.2V
3V 1.7V 2.4V
3016
2K7
GNDVS
75
2047
GNDVS
74
I040
4p7
5V
2.5V
2.4V
47K
2042 I050
1.8V
7008
5V
3023
100n
BC847BW
GNDVS 1.7V
2.3V
1.7V
I048
3021
7010
150R BC847BW
GNDVS
I051
I052
GNDVS GNDVS GNDVS GNDVS GNDVS GNDVS
7 8 9
10 11 12
GNDVS GNDVS
83 82
2055
27p
2003
I341
10u
2.1V 9.4V 1.5V
48 47 46 45 5V 2.3V
7004-C
Y_DELAY
MPB
C_COMB
CCD_GND
49 50 51 52 53 54 55
5.1V
0.8V 1.8V 2.5V 2.5V
GNDVS GNDVS
85 86
5VA
84
GNDVS
F005
5.1V
3.3V 5V 3.4V 0.5V
3.4V 3.4V
3.4V
62 61 60 59 58 57 56
4.3V
C_VCC NTSC_H/
4.1V
2FSC GNDVS GNDVS
44
S.L.D.
PB H Out
TO:
2V
MES_DET
43
1.6V
D.E.
BC857BW
D.E. 3.1V
GNDVS 2022
42
BPF1 CLAMP VCA
NON_COR GNDVS
I340 10u
MESECAM
2.9V
2023
41
Y
D
1u
P R
5V
2024
I339
40
VCC
COMP_IN
SEPP_IN IIC_SW
47u
4.1V
2025
39
REG
NON_LIN
N.C.1 N.C.2 10n
1.8V
DE_EMP
81
2.1V
2026
38 3028
VID1/SEPC_IN
SYNC
PIC_CTL
SEP
ANR
150R 100n
4.8V
2028
37
PLL SYNC_DET
SYNC_DET
Y/C_MIX
100n
2.3V
VID2/SEPY_IN 2V
2029
36
P
3.4V 100n
F.B.C.
3.3V
I062
3007
35
AFC
R
3K9
2.3V
1.9V
I061
2033
VID3_IN 34
EE_AGC
1.5V 10n
1.35V
2035
I338
6DB_AMP 33
AGC_TC2
22u
EQ_CTL
26 27 28 29 30
31 32
0V 0.3V 0.3V 1.7V 5V 2.9V 2.1V
1.8V 1.2V 1.5V
79
2036
76 77 78
10u
5.2V
5V
1.2V
F008
4.8V
GNDVS 5.2V
1.2V
7009
PDTA124EU
GNDVS GNDVS
10 11 12
0050 D1 F006 B13
13
0051 E1 F007 D12
1001 C8 F008 H12
1911 B2 F009 G10
1912 B1 F010 G10
2000 A8 F011 G9
2001 A10 F012 G8
2002 A10 F013 G7
2003 A11 F014 G5
2004 B9 F015 G5
2005 C13 F016 F4
2006 C13 F017 G2
2007 C7 F019 I9
A 2008 C8 F083 A6
2009 C9 F1101 C2
2010 C9 F1102 C2
2011 C10 F1103 C2
2012 C10 F1104 C2
2013 C11 F1105 C2
2014 C7 F1106 C2
2015 C7 F1107 B2
2016 C10 F1108 B2
5VA
2017 C10 F1109 B2
2018 C12 F1110 B2
2019 C13 F1111 B2
B
2020 D4 I001 A7
2021 D4 I014 C9
2022 D12 I015 C9
F006
2023 D12 I040 H7
2024 E12 I041 I9
2025 E12 I044 B6
2026 E13 I045 B5
2027 F4 I046 I5
2028 F12 I047 H5
2029 F13 I048 I6
GNDVS GNDVS
2030 F4 I049 F13
2031 F13 I050 H8
C
2032 H6 I051 I8
2033 F12 I052 I7
2034 F13 I053 H8
2035 G12 I054 E4
2036 G11 I055 I7
2037 G6 I056 I6
2038 G6 I057 C8
2039 G6 I058 D13
PBH
2040 G7 I059 C10
2.2V
2041 H8 I060 C10
7006 2042 H7 I061 F12
D
2043 H4 I062 F12
2044 H5 I063 H4
2045 H10 I300 C4
2046 I6 I331 C4
2047 H7 I332 D4
2048 I8 I333 D4
GNDVPO
2049 I11 I334 I7
2050 I8 I335 H7
2051 I7 I336 G8
2052 I8 I337 G11
2053 D13 I338 G12
2054 H7 I339 E12
E
2055 A12 I340 D12
2056 D12 I341 A11
3001 A6 I342 C8
3002 C8 I875 F2
3003 A8
VBS
3004 C9
3005 C13
3006 C9
6
3007 F13
3008 I11
F002 3009 C6
VFV 3010 H5
F
3011 H9
I049 3012 H9
2031
3013 I5
3014 A6
470n
3015 H6
2034
3016 G7
3017 H8
1n
3018 I8
3019 I7
3020 I8
3021 I7
G 3022 I7
3023 H7
3024 I7
3025 G11
3026 E12
3027 D4
3028 E12
3029 C8
VREC
3030 F2
3031 G5
4001/3032 I8
5000 B13
H
5001 C13
5002 C4
5003 H4
5004 I6
5005 I8
IREV 5006 I6
7002 B6
7003 I6
7004-B G4
7004-C B9
7005 A8
7006 D13
7008 H8
I
7009 I11
7010 I7
9801 F2
C001 I2
C002 I2
F001 G8
F002 F13
F003 B12
F004 B12
VS-8920-14
F005 C11
13