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Circuit Diagrams and PWB Layouts
Mono Carrier: CPU & Decoder
1
CPU & DECODER
A8
D
+5v
C203
C227
0.01U
47uF/ 16V
IC202
C202
C201
24C08
100pF
100pF
STANDBY
STANDBY
R204 100
SCL
SCL
R206
SDA
SDA
100
MUTE
MUTE
AV3
AV3
R219 47
VOL
VOL
C250
C226
0.01U
+3.3V
R218
100U/ 10V
+3.3v
10K
C
R312
PAL
3K3
NTSC
SYSTEM
SYSTEM
L201
10uH
+8V
10UH
C212
C206
0.01U
10U/16V
C208
4n7
C211
R245
15K
1uF/50V
C218
C217
1U/ 50V
0.1U
C214
EW
2.2U/ 50V
EW
VDRB
VDRB
VDRA
VDRA
SAW101
IF
1
4
IF
2
5
R214
SAW101
39K
SW02B
C213
0.1U/ 63V
AGC
AGC
SIF
1
4
SIF
2
5
B
SAW102
C221
C222
SAW102
Q9362M
3n3
C224
10uF
1.5nF
C251
2.2U/ 50V
NICAM
C216
C223
NO NICAM
3.3K
A
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1
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7.
2
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R234
R235
R220
IC201
3.3K
3.3K
5K1
TDA83731
R217
1
64
STANDBY
IRin
100
2
63
SCL
AV2
3
62
SDA
AV1
4
61
L202
AV3/TUNING
VddP
10uH
5
60
SCART ID
RESET
+
C232
C230
6
59
C231
33pF
2.2U/ 50V
KEY
XTAL OUT
X201
0.01U
7
58
12MHz
VOL
XTAL IN
C205
C229
8
57
33pF
MUTE
OscGnd
C235
D206
0.01U
10u/16v
8V2
9
56
Vss C/P
VddC
C236
10
55
0.01u
LED
VpE
11
54
PAL/NTSC
VddA
R239 100
12
53
VssA
B OUT
C207
R241
13
52
0.22UF
100
SECPLL
G OUT
R240
14
51
100
Vp2
R OUT
C210
220nF
15
50
R242 10K
DECDIG
BLANKING
C209
16
49
2200p
PH2LF
BCL IN
17
48
C239
0.022U
PH1LF
B / U IN
18
47
0.022U
GND3
G / Y IN
C240
家电维修资料网
19
46
C241
0.022U
DECBG
R / V IN
20
45
AVL/EWD
BLANK
21
44
VDRB
AUDOUT/AMOUT
22
43
VDRA
C IN
23
42
IF1
CVBS/Y IN
24
41
IF2
GND1
25
40
IREF
CVBSINT
26
39
VSC
Vp1
R231
27
38
TUNER AGC
IFVO/SVO
C219
2.2K
R229
0.022U
28
37
AUDEEM/SIF1
PLL IF
390
29
36
DECSDEM/SIF2
EHTO
30
35
GND2
AUDEXT/QSSO
31
34
SNDPLL/SIFAGC
FBISO
32
33
AVL/REFO
H. OUT
C220
4.7uF
2
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EN 20
3
+5V_VCC
+5V_VCC
A2
A1
+3.3V
L204
10uH
L203
10uH
+8V
C233
0.01u
C234
R243
R725
R425
10u/16v
22K
R247
ZD104
D203
D202
D204
27K
10K
8V2
8V2
8V2
8V2
33K
L205
10uH
C243
C244
R220
0.01U
100U/ 16V
C246
100K
0.1U/ 63V
R311
27K
R221
47
C352
47U/16V
R228
R230
100
100
Q201
C1815
L206
6.8uH
R224
100
R223
Z201
XT-6. 5
180
GND
Z202
XT-6. 0
GND
Z203
Q202
XT-5. 5
Q203
C1815
GND
C1815
R226
R227
4K7
4K7
Z204
XT-4. 5
GND
SYSTEM
3
4
A8
D
C
GND
1
B
2
G
CN102
3
R
4
BL
5
BCL
BCL
U / B in
U / B in
Y / G in
Y / G in
V / R in
V / R in
BLANK
BLANK
AUDIO OUT
AUDIO OUT
C IN
C IN
CVBS/Y IN
CVBS/Y IN
8V
8v
+
C245
10U/16V
R465
EHT
EHT
B
560K
AFC
AFC
H-out
H-out
CVBS
CVBS
A
1
SYSTEM 1
H_17210_008.eps
070607
4
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