Ssb: If & Saw Filter (Diagr. B1) - Philips A02U AA Service Manual

Circuit Diagrams and PWB Layouts
Small Signal Board: If & SAW Filter
1112-A A4 1114-A B5 2102 A1 2126 A6
1112-B A10 1114-B A10 2103 D2 2127 A6
1113-A B4 1115 D10 2115 D5 2128 C6
1113-B A10 2101 C1 2119 B2 2130 E7
1 2
IF & SAW FILTER
+8V +8Va +5V +5Va
5102 5135
100MHZ/220R 100MHZ/220R
2102
A
2138
10n
100n
5134 +5Vb
100MHZ/220R
2134
100n
3134
10R
I101 +5Vd
+8Vc
5112
100MHZ/220R
2119
2133 2137
2135
100n 100u 10n
10u
B
IF-TER 2101
10n
B18-5
C
5101
+8Va
0u82
6101
1SS356
3101
2K2
4V9
7101
BC847BW
3106
SEL-IF-LL
0V
27K
B11-7
D
2103
1n
SIF_PIP
B1-1
(TO CON 0221)
E
3139 123 5536.2
1 2
A02U AA 7.
2132 B10 2136 C10 3102 C4 3106 D1 3132 D7
2133 B1 2137 B2 3103 B3 3112 D3 3133 E7
2134 A2 2138 A2 3104 B3 3116 D6 3134 B1
2135 B1 3101 C2 3105 D3 3131 D7 3135 B9
3 4
2
7
4107 3
8
4108
1112-A
OFWK9656L
I102
4101 2 7
4102
I103
4103 3 8
4104
1113-A
OFWK3953L
+8Va
F138
2 7
3103
6K8
3 8
1114-A
3104
OFWK3955L
2K2
+8Va
3102 6102
2K2 1SS356
3105
7104
BC847BW
F137 22K
3112
47K
FOR /93 ONLY
3 4
45
3137 C10 4103 B3 5101 C1 5129 B6 6102 C4
3138 A6 4104 B3 5102 A1 5134 A2 7100-C A6
4101 A3 4107 A3 5112 B2 5135 A2 7101 D2
4102 A3 4108 A3 5128 B6 6101 C2 7104 D4
5 6 7
2126
7100-C
100p
MPIF
3138
2127
111 VIFPLL
IF PLL
390R 1V9 CALIBRATOR
100n
VCO
FFI,IFO IFA/B/C,IFLH
I104
VIFINN
1V9
107 VIFINP
5128
1u0
108 VIFINN
I105
VIFINP
1V9
PMOD
7V9
SIFNP 99 SIFINP
5129
SIFINN
1u0
100 SIFINN
2V
I106
101 SIFAGC
SIF AGC
DET
2V
2128
2u2
105 TUNERAGC
VIDEO AGC
I/V
2V DET
VSW
TO
2115 3116 2ndSIFEXT GATING PMOD,AGC O/I
113 2NDSIFEXT
F134
10n 220R
106 FUSE4
+5V
3131
10K
3132
TUNER_AGC 100R
I108
3133
2130
15K
22n
5 6 7
7131 B10 F132 E10 F138 B4 I103 A4
F114 E10 F134 D6 F139 A8 I104 B6
F115 D10 F135 A9 I101 B1 I105 B6
F116 E10 F137 D3 I102 A4 I106 C6
8 9
1112-B
OFWK9656L
+5Vb
1113-B
F135
F139
OFWK3953L
NC
LOCK LOCK
AFA
AFC
AFB
2V2
VAI, VA1...0
SOUND GROUP
CVBSOUTIF 120
LPF 7131
TRAP DELAY
BC847BW
3135
ST1...0 GD 100R
DTVOUTP 116
QSS
QSSOUT
BPF
LPF
DTVOUTN 117
NC
DSIF,DDIF
TO AM INTERNAL
VCC1-VSW 122
AUDIO SWITCH
+5Va
LPF
VCC-SUP 118
+5Vd
2nd SIF
LPF VCC2-VSW 125
AGC
+5Va
FOR PIP/DW
I107
2NDSIFAGC 114 ONLY
2ndSIF A/D
HPF LPF
2V
2136
10u
SLPM
LPF
DTVIFAGC 102
NC
AGC
PIP_AUDIO
B18-11 B3-3
SIF_MAIN
B1-2
SIF_PIP
B1-1
CVBS_PIP_TUN2
B2-4
8 9
I107 C9
I108 E6
10
MT NC
1 5 9 13 15 11 16
4 6 10 14 18 12 17
A
MT NC
1 5 9 13 15 11 16
10 14 18 12 17
4 6
1114-B
OFWK3955L
MT NC
1 5 9 13 15 11 16
4 6 10 14 18 12 17
CVBSOUTIF
B
B2-12
+8Vc
2132
10n SIF_MAIN
B1-2
3137
1K
C
D
1115
1
2
3
4
5
6
7
8
E
NC 9
CL 36532058_022.eps
211103
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