Sharp CD-XP120 Service Manual page 23

D+
D–
C460
ATE
0.022
Q409
C1815 GR
38
7K
R449
1K
R492
12K
C425
0.1
R489B 1K
R489A 1K
C427
0.1
R493
7.5K
C451
120P(CH)
7
P25 12 - F P16 4 - A
TO MAIN PWB
TO DISPLAY PWB
CNP701 CNP101
CNS701 6 5 4 3 2 1 7 6 5
6 5 4 3 2 1 7 6 5
BI701
L404
2.2 µH
L405
2.2 µH
R467
1K
36 35 34 33 32 31 30 29 28 27 26 25
R452
37
1K
38
UP_SW
R453 1K
39
DISC_SW
R454 1K
40 LOAD_SW
41 PICK_IN
R455 IC403
42
CD_STB
1K
IX0051SJ
43 NRST
SYSTEM
44
MMOD
MICROCOMPUTER
45 OSC1
46 MCLK OSC2
MDATA
47
MLD
48
1 2 3 4 5 6 7 8 9 10 11 12
R491
1K
R446
R499
47K
1K
R495 1K
R496 1K
R497 1K
20 19 18 17 16 15 14 13 12 11 10 9
21 TVR
22
TVD
23
PC
24
ECM
25
ECS
26
KICK
27
TRO
28
FOO
29
VREF
IC401
30
FBAL
MN6627482W
31
TBAL
CD SIGNAL CONTROL
FE
32
TE
33
RFENV
34
35
VDET
36
OFT
37
TRCRS
38 /RFDET
39
BDO
40
LD
41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60
R457
220K
R466
2.7K
C433
R458
C428
0.33
100K
560P
C431
0.001
C432
0.68
C434
0.1
8
Figure 23 SCHEMATIC DIAGRAM (8/10)
4 3 2 1 CNS101
4 3 2 1
BI101
D401 D405
1N4148 1N4148
D404
1N4148
KRC102 M
R481
2
10K
R435B
R435A
1K
1K
+B
C455
0.1
R475
1K
24
R476 1K
23
CE
R477 1K
22
CL
R478 1K
DO 21
R479 1K
DI 20
19
XO
L403
X402
2.2 µH
XI 18
8 MHz
VSS 17
16
15
R479A VDD
14
1.8K
13
R480
1K
C452
100/10
R445
47K
R444
47K
C437
0.1
8 7 6 5 4 3 2 1
C444
SSEL 80
0.0027
MSEL 79
R483
560
78
PSEL
C445
CSEL 77
0.001
R484
RSEL 76
680
75
OUTR
AVSS1 74
OUTL 73
72
AVDD1
71
/TEST
IOSEL 70
RESY 69
68
DEMPH
CRC 67
66
CLVS
65
FLAG
IPFLAG 64
FCLK 63
62
CLOCK
BYTCK 61
C441
0.1
R474
2.7K
X403
16.93 MHz
C436
0.33
C438 C442
15P(CH) 15P(CH)
C458
0.047
L401
0.82 µH
C457
0.047
9 10
– 23 –
R482
1K
Q412
Q411
KSC1815 GR
C426
3.3/16
R442B
3
10K
1
Q413
R442A
D406
KSC1815 GR
82
1N4148
+B
+B
C449
10/50
C447
C450
0.0027
10/50
R485
560
R486
680
C446
470/6.3
R487
100
L402
0.82 µH
11
CD-XP120
R471A
10K
R471B
120
R473
1K
CNS105
FM_ST
1 1
SD
2 2
DO
3 3
CL
4 4
DI
5 5
CE
6 6
CD+B
7 7
BI105A
8
9
10
TAPE_DET
1
2
BI105B
CD_R
3 3
A_GND
2 2
CD_L
1 1
BI103 CNS103
12