Md-R2 Notes On Schematic Diagram - Sharp MD-MS702MK Service Manual

P14 P15 P16
R203
100
C211
5P(CH)
XL201
33.8688MHz
75 74 73 72 71 70 69 68 67 66 65 64 63 62 61
TP209
76
TP210
77
TP211
78
CK201
SBO
79
CK202
TOTMON
SBSY 76
80
CK203
SFSY TEMON
81 77
FOK CK204
FOK
78 SBCK
82
SENSE
SENSE
83
CK205 4
CIN
COUT
84
MCCK CK206
MCCK
85
DINT
DINTX
86
C203 IC201
VDD1
3
87
0.1
DGND LR376481
88
XRT
RSTX
89
ENDEC
R204
SYD0
SYSD0
90
SYD1 1K SYSD7
97
SYSD1
91
SYD2 SYWRX
98
SYSD2
92
SYD3 99 SYRDX
SYSD3
93
SYD4
100 SYRS
SYSD4
94
SYD5
SYSD5
95
SYD6
SYSD6
96
SYD7
97
SYWR
98
SYRD
99
SYRS
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
TP206
TP201
C205
0.1
R206
220K
L100
10µH
MCCK
C442
680P R442
100K
4 3 2 1
R444
2.7K
5 6 7 8
25
C443 C441
0.47 10P(CH)
26 PLVDCI
27 PLVDRY
RKEY
RKEY
28
HKEY1
R403
29 HKEY1
HKEY2
22K
30 HKEY2
R406
TEMP
100K TEMP
31
32 CNTRY
R404 150K
SW401 33 AVSS
LDVAR
EJECT
LDVAR
34
TP401
35 MDOUT
AVREF1
36
SYWR
37 SYWR
SYRD
38 SYRD
SYRS
SW402
39 SYRS
HOLD RKEY
40
RMDAT
41
CLOCK
42
HSTOP
R407 HSTOP
43
BEEP
10K BEEP
44
DSPSTB
DSPSTB
TP403 45
DSPDAT
DSPDAT
46
DSPSCK
DSPSCK
47
SYD0
SYD0
48
SYD1
SYD1
49
SYD2
SYD2
50
51 52 53 54
SYD3
SYD4
SYD5
SYD6
SYD7
RPLAY
LDON
OPICGA
RFLAT
1 5
VCC
2
3 4
GND
IC404
7SH00FU
C651
TP610
1
NAND GATE
5 4 3 2 1
C604
IC651
1/6.3
LB1638M
6 7 8 9 10
3 MOTOR DRIVE
3
The numbers 1 to 18
7
TP205
60 59 58 57 56 55 54 53 52 51
50
49 TP204
48
TP203
TCRS 47
EFMO 50
RAD0 46 1
TP202
PLCK
49 RAD1 45 2
ACRCER 48 RAWEX 3
44
RARASX 43 4
RAA9 42 5
RAD3
41
RAD2 40
RACASX
39
DGND
38 6
RAOEX 37 7
RAA8 36 8
RAA7 35 9
RAA1 28
RAA6 34
10
RAA2
27
RAA5 33
4M D-RAM
RAA3 26
RAA4 32
VDD2 31
RAA10 30 C202
10/6.3
RAA0 29
L202
28
10µH
27
26
C201
1
D201
1SS369
D431
1SS361
IC431
S80821LN
R426
100K
1
OUT VSS
C431
R431
0.047
330K
2
VDD
R402
10K
24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
PDCNT
100
99
DISCPR
98
INNSW
DISCIN 97
25 24 23 22 5 4 3 2 1
96
CKSTP
PCNT2 95
VPP 94
PCNT1
93
PCNT1
PHOLD
92
PHOLD
CIN 91
IC401
ELON 90
89
IX2680AF
PSLDRY 88
SYSTEM MICROCOMPUTER
87
PSLDCI
PSLINN 86
TP405
TEST1 85
TEST0
84
TP404
83
SPIN
82
VDD 81
51 52 53 54 70 71 72 73 74 75
EPCS 80
EEPK RTCCK 79
EEPD RTCDT 78
RTCWR 77
RTCCE
76
55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75
L651
0.47µH
are waveform numbers shown in page 43 (MD-MS702).
8 9
Figure 15 SCHEMATIC DIAGRAM (2/3)
DADATA
ADDATA
HKEY2
DFCK
BCLK
LRCK
DIN
HREC
ADPON
HSTOP
DAPON
HPLAY
OPTCNT
HKEY1
EMPH1
DSPSTB
I/O1 GND 20 DSPSCK
I/O2 I/O4 19
DSPDAT
WE
I/O3 18
RAS CAS
17
A9 OE
16
A0 A8
15
A1 A7
14
A2 A6
13
A3 A5
12
VCC A4
11
MCPGIN
INPGIN
INPGCK
OPTCNT
DIN
RCLAT
RADAT
RESET
RACLK
4
PBLAT
BEEP
3
NC
PBOPON
ADPON
DAPON
DFCK
LRCK
BCLK
ADDATA
DADATA
EMPH1
EMPH0
R420
PDCNT
1K
DISCPR
INNSW
RKEY
DISCIN
RPLAY
R419
PCNT2 1K TP412
2SA17457
C401
0.1
TP406
PSLDRY
PSLDCI
R411 PSLINN
R400
100K
3.9K
R413
TP407
1K
1 CS VCC 8
CLOCK
TP408
R414
2 7
SK
1K
TP411
R412
3 DO PRTCT 6
10K
4 DI GND 5
TP409
IC402
R415
S29L294A
1K
2
E -PROM
HREC
HPLAY
C864
33/6.3
RCPCNT
10
– 15 –
MD-MS702MK
R456
R455 R457
8.2K
5.6K 18K
R452 R453 R454
R451
8.2K 18K 56K
5.6K
R482
18K
JACK PWB-A2
L772
4.7µH
33
TP593
TP793 MCPGIN
33
TP792 TP592 INPGIN
32
TP791 TP591 INPGCK
31
TP790 TP590 VCCMIC
30
TP789
29
TP588
VCC2.8
28
TP787
27
TP586 VCC2.8X
26
TP785 TP585 OPTCNT
25
TP784 TP584 DIN
24
TP783
23 TP582
22
TP781 TP581 RCAULT
21
TP580 AUDATA
TP780
20
TP579
TP779 AUSCLK
19
TP778 TP578 PBAULT
18
TP577 BEEP
TP777
17
TP776 TP576 PBMUTE
16
TP775 TP575 RESET
15
TP574 PWAD
TP774
14
TP773 TP573 PWDA
13
TP572 MCLK
TP772
12
TP571
TP771 LRCK
11
TP770 TP570 SCLK
10
TP569 STDO
TP769
9
TP568
TP768 STDI
8
TP767 TP567 DEM1
7
TP566 DEM0
TP766
6
TP565
TP765
5
TP764 TP564 RKEY
4
TP563 RPLAY
TP763
3
TP562
TP762 RMDAT
2
TP761 TP561
1
1
Q401
R861
3 2 1
100K
IC702
TK71354M
4.5 REGULATOR
(ON/OFF)
D862
4 5
RB521S30
C866
L862 L863 C863
1
47µH 4.7µH 1
C869 C865 D861
33/6.3 1 RB491D
L171
10µH
C810
PCNT1
0.33/10
TP810
R810
R811
180K
180K
D831
TP811
1SS372
C831
C832
0.1
0.1
11
TP451
1
TP452
2
TP453
3
TP454
4
R458 TP455
5
56K
TP456
6
TP457
7
TP458
8
TP459
9
TP460
10
TP461
11
TP462
12
TP463
13
TP464
14
CN451
FL
R481 C481 TP487
7
36K 0.1
TP486
6
TP485
5
TP484
4
TP483
3
TP482
2
TP481
1
CN482
FL
9 8 7 6 5 4
12 11 10
13 21
14 15 16 17 18 19 20
C507
10/6.3
R500
4.7
3 2
4
C77
C774
1 0.2
IC77
TK7122
2.5V REGU
POWER
IC
IR3M
1
VREF
DB
2
R841
100K
3
EAIN+
R846
10K
EAIN–
4
C842
R843
22P(CH)
100K EAOUT
5
R848
220K
6
GND
C846
1
POWE
IC
IR3
1
VREF
C830
0.001 DB
2
R826
10K
3
EAIN+
C822 EAIN–
4
39P
R823
(CH)
100K EAOUT
5
R828
270K
6
GND
C825
68P
C826
(CH)
1
I
C821
ND
220/4
12