Sharp MD-R3H Service Manual page 78

MD-R3H
IC1101 VHiiR3R55//-1:RF Signal Control (IR3R55)
REFO
RFADD
IC1201 VHiLR376481-1:ENDEC/ATRAC (LR376481)
TOTMON
TEMON
SBCK
SENSE
COUT
MCCK
DINTX
DGND
SYWRX
SYRDX
SYRS
48 47 46
RF1 1
RF2 2
DIFF
RF3 3
DIFF
RF4 4
REFI 5
6
BIAS
7
TCGI 8
AIN 9
BIN 10
EIN 11
FIN 12
13 14 15
Figure 78-1 BLOCK DIAGRAM OF IC
75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
76
77
78
SBO 79
SBSY 80
SFSY 81
FOK 82
83
84
85
86
VDD1 87
88
RSTX 89
SYD0 90
SYD1 91
SYD2 92
SYD3 93
SYD4 94
SYD5 95
SYD6 96
SYD7 97
98
99
100
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
Figure 78-2 BLOCK DIAGRAM OF IC
45 44 43 42 41 40
EFM
AGC
ADIP
AGC
HPF
LPF
LOGIC
16 17 18 19 20 21
LR376481
– 78 –
39 38 37
36 ADIPI
35 ADIPO
34 NC
33 ADLPFO
32 22KO
31 22KI
30 WBO
29 TCGO
28 AOUT
27 BOUT
26 EOUT
25 FOUT
22 23 24
EFMO
50
PLCK
49
ACRCER
48
TCRS
47
RAD0
46
RAD1
45
RAWEX
44
RARASX
43
RAA9
42
RAD3
41
RAD2
40
RACASX
39
DGND
38
RAOEX
37
RAA8
36
RAA7
35
RAA6
34
RAA5
33
RAA4
32
VDD2
31
RAA10
30
RAA0
29
RAA1
28
RAA2
27
RAA3
26