Sanyo CP21FS2, Service Manual

Page: 5 / 37

-5-
IC Block Diagrams
IC201 < CPU/IF/Video/Chroma/Def. > LA76938DE56T5-E
CLOCK
CONTROL
I/O
POR
T
0
RAM
ROM
BASE
TIMER
CPU
CORE
OSD
BUS
CLOCK
CONTROL
TIMER
0
ADC
RST
PLL
VDD AFT
RESET
CPU TST
R
CPU TST
G
CPU TST
B
CVBS PDC ENABLE VS HS R G B FS
I
DA
T
A
CLOCK
C-SYNC
I/O
POR
T
1
V DET
RESET
BUS
HS VS
FBP
AFC1
AFC2
PHASE
SHIFTER
HOR
VCC
VER
RAMP
VER SEP
SYNC
SEP
COLOR
CLAMP
TINT
D1 SW
1H DL
HOR VCO
1/256
HOR
C/D
CLMP
DC ADJ
APC2
DDS
VXO
VCO
FSC
SYNC
APC1 ACC
YC SW
PA
L S
W
DEMO
BPF
VIDEO
SW
CLMP
CLMP
DC
REST
TRAP
V/Y SW
DL
SHARP
BG SG
RGB
MA
TRIX
CONTRAST
BRIGHT
VER
C/D
OSD
SW
OSD
OSD
CONTRAST
ABL ACL
DRIVE/OUT
-OFF
HOR OUT
SPLL
AFT
VIDEO
AMP
DAH
VCO
SW
RF
AGC
TRAP
IF
AGC
VIF
AMP
VIDEO
DET
SOUND
DET
LIM
AMP
BPF
500K
DET
BPF
FM
DET
FM
AMP
SW
DC
VOL
18P
15P 510K
0.01U
100U
+
VDD
AN4/P04
AN5/P05
AN6/P06
AN7/P07
150K
0.33U
2.2U 100
0.033U
CPU GND
0.01U
100
100U
20K
FBP
0.1U
YC-C
YC-Y
1U
1U
750
1U
DVD-Y
CB
0.1U
4.43M
0.1U
CR
SVO/FSC
0.047U
0.47U
12K
1U
0.01U
100U
EXT
-V
VCC:5V
VCD
INT
-V
VCC
OUT
VIDEO
RF-AGC
IF IN
1U
680K
2.2U
560 0.47U
47K 47K
0.1U
SA
W
FIL
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
+
+
+
+
+
+
+
+
+
+
+
10P
0.022U
39K 1U
+
0.022U
1500P
10K 0.01U
+
100U
0.01U
+
10U
+
100U
42
+
0.01U
FM
OUT
VOLUME
OUT
5V
EXT
-AUDIO
IN
ABL
RGB
9V
R
OUT
G
OUT
B
OUT
V RAMP
0.47U
(M)
0.015U
(M)
VER
OUT
(METAL FILM)
4.7K
+
100U
0.01U
120
VDD
0.015U
+
1U 3K
HOR
OUT
1CHIP GND
INT0/P00
INT1/P01
P02
INT3/P03
IRAD
PWMI/P14
PWM2/P15
P17
PWM3/P16
SDA1/P12
SCK1/P13
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
SM_21-C8YY(FC6-A)AUS-Slim 8/24/06 9:16 AM Page 5