Philips 21PT9457 - Mono Carrier: CPU & Decoder (A8)

EN 20SK4.0L CA 7.
Circuit Diagrams and PWB Layouts
Mono Carrier: CPU & Decoder
1 2 3 4
A
B
C
D
4
321
D
C
B
A
STANDBY
1
SCL
2
SDA
3
AV3/TUNING
4
SCART ID
5
KEY
6
VOL
7
MUTE
8
Vss C/P
9
LED
10
PAL/NTSC
11
VssA
12
SECPLL
13
Vp2
14
DECDIG
15
PH2LF
16
PH1LF
17
GND3
18
DECBG
19
AVL/EWD
20
VDRB
21
VDRA
22
IF 1
23
IF 2
24
IR EF
25
VSC
26
TUNER AGC
27
AUDEEM/SIF1
28
DECSDEM/SIF2
29
GND2
30
SNDPLL/SIFAGC
31
AVL/REFO
32
H. OUT
33
FBISO
34
AUDEXT/QSS O
35
EHTO
36
PLL IF
37
IF VO/S V O
38
Vp 1
39
CVBSINT
40
GND1
41
CVBS/Y IN
42
C IN
43
AUDOUT/AMOUT
44
BLANK
45
R / V IN
46
G / Y IN
47
B / U IN
48
BCL IN
49
BLANKING
50
R OUT
51
G OUT
52
B OUT
53
Vd dA
54
Vp E
55
Vd dC
56
OscGn d
57
XTAL I N
58
XTAL OUT
59
RESET
60
VddP
61
AV1
62
AV2
63
IR i n
64
IC2 01
TDA83731
1
2
3
4
5
SAW101
SW02B
C210
220nF
C209
2200p
C208 4n7
+
C211
1uF/50V
R245
15K
L201
10uH
+8V
C218
1U/ 50V
+
C217
0.1U
C207
0.22UF
X201
12MHz
C230
33pF
C229
33pF
+3.3 V
L202
10uH
+
C233
0.01u
+
C231
0.01U
C234
10u/16v
C232
2.2U/ 50V
L203
10uH
C213
0.1U/63V
R214
39K
C251
2.2U/50V
C224
1.5nF
C2 21
3n3
R234
3.3K
R235
3.3K
R239
100
R241
100
R240
100
GND
R242
10K
+8V
ZD1 0 4
8V2
1
2
3
4
5
BL
R
G
B
C239
0.022U
R247
33K
R425
27K
D20 4
8V2
D202
8V2
D203
8V2
C240
0.022U
C241
0.022U
R243
22K
Q202
C1815
Q203
C1815
GND
GND
R224
100
R223
180
L206
6.8uH
Z201
XT-6. 5
Q201
C1815
Z202
XT-6. 0
Z204
XT-4. 5
GND
R227
4K7
R226
4K7
GND
Z203
XT-5. 5
WP
1
n.c.
2
A2
3
Vss
4
Vdd
8
PTC
7
SCL
6
SDA
5
IC2 02
24C08
R204
100
R206
100
C203
0.01U
R2053.3K
R203
3.3K
C227
47uF/16V
R2023.3K
R231
2.2K
R229
390
C246
0.1U/63V
R219 47
R218
10K
1 2
3
4 5
LED
KEY
5V
IR
GND
BCL
BLANK
V / R in
Y / G in
U / B in
C I N
CVBS/Y IN
R221
47
R311
27K
C202
100pF
C201
100pF
D206
8V2
+3.3V
C220
4.7uF
R217
100
CN102
R725
10K
8V
AUDIO OUT
EHT
AFC
H-out
R312
3K3
SYSTEM
SYSTEM
STANDBY
SCL
SDA
VOL
EW
VDRB
VDRA
IF
AGC
1
2
3
4
5
SAW1 02
Q9362M
C222
10uF
SIF
NI CAM
NO NI CAM
+5V_ VCC
R210
3.3K
SAW101
SAW102
PAL
NTSC
1
C219
0.022U
+
C245
10U/16V
R228
100
R230
100
CVBS
R208
3.3K
C226
100U/10V
C250
0.01U
MUTE
C212
0.01U
C206
10U/16V
C214
2.2U/50V
L204
10uH
C236
0.01u
C235
10u/16v
C352
47U/16V
C244
100U/ 16V
C243
0.01U
L205
10uH
R220
100K
R465
560K
C205
0.01U
AV3
R207 3.3k
10UH
C223
C216
3.3K
R220
5K1
+5v
BCL
U / B in
Y / G i n
V / R in
BLANK
AUDIO OUT
C IN
CVBS/Y IN
A2
A1
+5V_VCC
8v
EHT
AFC
H-out
AUDEXT
+3.3v
SCL
SDA
MU TE
AV3
VOL
SYSTEM
EW
VDRB
VDRA
IF
SYSTEM 1
CVBS
STANDBY
AGC
SIF
H_17210_008.eps
070607
CPU & DECODER
A8
A8
5800 A3P610-00