Sharp MD-SR60 Service Manual page 27

DADATA
ADDATA
DFCK
BCLK
LRCK
DIN
ADPON
DAPON
OPTCNT
EMPH1
IC202
IX2567AF
4M D-RAM
1 GND 20
I/O1
2 19
I/O2 I/O4
3 18
WE I/O3
4
RAS CAS 17
5
A9 OE 16
A0 A8
6 15
A1 A7
7 14
A2 A6
8 13
A3 A5
9 12
VCC A4
10 11
VCCDRAM
C202
47/6.3
R202
33
+B
+2.7V
2V REGULATOR
C206
1
2.0V
N.C.
R408
100K
OPICGA
P404 LDON
R422
100K
R407
10K
HGON
LVGIN
TP415
PLVON
TP401 C401
0.1
LDVAR
CHGCNT
TEMP
HKEY1
HKEY2
PLVDRY
R443
12K
R423
22K
DINT
RCPCNT
PCNT1
PCNT2
IC873
62GR4522
4 3
2
5 1
C837
1
C836
4.5V
1
REGULATOR
4
SW403
PCNT1
LID DETECTION
PCNT2
PLVDRY
CHGON
PLVON
CHGCNT
U
R466
560K
7
R457
R455
18K
5.6K
R458
HKEY2
56K
R456
8.2K
R454
HKEY1
56K
R451 R452 R453
5.6K
8.2K 18K
HPLAY
HREC
C482
1
+B
+2.7V
C509
R501
470 2.2
C500
10/6.3
R502
C510
470 2.2
C511
1 C502
0.0022
TP500
8 7 6 5 4 3 2 1
L500
47µH
5
11
9 10 12 13 14 15 16
C506
0.001
6
7
8 IC771
62GR2522
2.5V REGULATOR
C773
1 5
0.22
2
C774
3 4 1
N.C.
+B
L871
0.47µH
IC203
62FP2002 C872
10/10
L771
100µH
1
3
2
C771
47/6.3
+B
-B
L862
100µH
C868
1
C869
47/6.3
IC871
TC7S86FU
EXCLUSIVE OR GATE
VCC
1 5
D862
2
F10J2E
3 4
GND
C863
1
L851
D851
C862
22µH
D1FH3
1
D
C851
G
C853
3.3
220/4
S IC852
R856 IR3M14N
10M
DC/DC CONVERTER
C857
R854
560P
10K
ERRAMP
GND
5 4
EO
C856
R857
330P(CH)
EIN
330K 6 3
C860
OUT
1
7 VCC 2
R853
EIP
STAND
BY
270K
8 1
ROSC CTRL
C827
R824
220P
10K
R826
ERRAMP
GND
5 4
10M EO
(CH)
EIN
R825
6 3
C826 OUT
300K
100P(CH)
VCC
7 2
R823
EIP
STAND
R827
BY
270K
220K
8 1
ROSC CTRL
IC822
IR3M14N
DC/DC CONVERTER
D831 D832 C838
HRB0103B HRB0103B
0.1
VG
R833
47
D821
D1FH3
+2R7 +B
D
L821
G
10µH
C823
220/4
S IC821
CPH3403
C828
N-CH MOS
1
FET
D822
F10J2E
D823
C825
F10J2E
1
8 9
Figure 27 SCHEMATIC DIAGRAM (2/2)
TP451 DISPLAY
1 1
TP452 EDIT
2 2
TP453
P-MODE
3 3
TP454 BASS
4
4
TP455 SKIP UP
5 5
TP456 VOL DOWN
6 6
TP457 VOL UP
7 7
TP458 ENTER
8 8
TP459 SKIP DOWN
9 9
TP460 STOP
10
10
TP461 PLAY
11
11
TP462
REC
12 12
TP463 GND
13 13
CN451
C481
1
TP481
1 1
TP482
2 2
TP483
3 3
4 4
5 5
DSPDAT TP486
6 6
DSPSCK
TP487
7
7
DSPSTB
TP488
8
8
DSPRST TP489
9 9
CN482
12 11 10
IC501: AD/DA CONVERTER
IC701
IR3R54N
AUDIO AMP.
13
R702
-B
22
INPGCK
INPGIN
MCPGIN
-B
R754
C762
150K C758
2.2
TP412 1
C754
1
R761
220K
R758
12 11 10 9 8 7 6 5 4 3 2
100
RHPVEE
BIAS AMPuGAIN SEL.
R757
2.2K
LOGIC AMPuGAIN SEL.
LHPVEE
C760
0.1
13 14 15 16 17 18 19 20 21 22 23
C761
2.2
TP772
C753
1
+B
C876
R814
1
10K
DCVDD +B
C840
220/4
C849
220/4
D842
C845 Q803
HRB0103B
0.1 UN5213
VGBATT
C847
1
D841
L841
F10J2E
4.7
TP842
1 5
C841
2
1
3 4
R850
100K
C850 IC841
0.1
6372C281
C842
2.8V UP
33/6.3
CONVERTER
R841
C848
100K
1
C844
10/6.3
4 3 IC253
RN4904
2
N.C. 1 1
5
IC842 2
XC62HS02 3
Q257
IC259
2.35V
2SA1832 GR
HN1C01FU
REGULATOR
POWER
TRANSISTOR
4 3
5 2
6 1 IC258
HN1C01FU
C259
0.1
R279 1
100
2
3
IC260
RN4904
TP809
D281
R288
1SS400
47K
IC253: DIGITAL TRANSISTOR
IC258: TRANSISTOR
IC255: OP AMP
IC260: DIGIITAL TRANSISTOR
10
– 27 –
LCD
L710
R717
47
1K
R712
R720 5.6K
8.2K R718
R-ch
Q711 1K
R719 C734 R711 L-ch
8.2K 0.1 RN1444 A
5.6K
C733 C715
0V
0.1
1.83V 0.1
9 8 7 6 5 4 3 2 1
RI LI C713 1 R713
0V
L702
L703
C712
100P
(CH)
VEE VCC
R715
14 15 16 17 18 19 20 21 2 2 23 24
100K
R714
R703
R716 10K
4.5V
100K
100K
C702
R726
C714
10/6.3
39K
R701 1 4.5V
100
C704 C701
C726
10/6.3
47/6.3
3.3/10
R727
R728
8.2K
R723
1K
6.8K
C731
0.22
R729 C721
2.7K
3.3/10
L-ch
R-ch
1
R730 C722
3.3/10
2.7K C723
0.001
Q721:RIPPLE FILTER
C492
L491 D494
1
24
33 MA8075M L456
L452
TP725
R765
C491 TP722
TP729
15
0.1
L-ch
TP724
L453
R-ch
TP723
L454
R766 TP721
R492
15 1K L451
TP727
C766 C765
TP728
0.22
0.22
D492
MA8075M
Q461
2SD1819 AS
R460
0V 68K
0.6V
R462
0V
27K
Q801
D801
R809 R801
2SJ520 TL
F05J2L
1 1.1A
IC802
4.5V
2.9V
HN1C01FU
R802 TP805
4.5V
TRANSISTOR
560
R811
3.4V
3.9V
1 4.5V
R807
R803
1 6 3 2 1
R812
22K
1.2K
2 10K
5
3 4
Q891
4 5
2SA1873 GR
R813 C804
3.9V
10K 0.1 R806
4.5V
0V 4.5V 56K
R808
1 1 OUT 4
1
VSS
3
0V
C801
2
C803 2 VDD 3
C802
1
IC801 0.1 R810
IC803
0.01
1
62RP2002 S80819LN
2V REGULATOR
4 3 RESET IC
5 2
IC809
6 1
RN4904
R818
DIGITAL TRANSISTOR
3.3M
IC251
FTD2017
C818
0.1 N-ch MOS FET
5 G2 G1 4
6 S2 S1 3
7 S2 S1 2
8 D 1
D
IC892
VCCBATT
2.1V
0V
Q250 HN1C01FU
R293 TP803
2SA17457
POWER TRANSISTOR
2.2K
1.6V
TP804
3 4
R294
2 5
R295 100K
R296
1 6
100K
100K
R281
22K
R292
6
100K
5
1 OUT 4
4 VSS
0V
2 VDD 3
R256 0V
R291
C291
56K
5.4V
100
1
RESET
-1.15V
5.1V
-1.6V
R254
R255
22K R257
C253
4.7K
27K
C252
0.1
1
6 R272
0.1
100
2 5
R253
3 4
8 7 6 5 R252
3 2 1
39K
150K
6 D251
1SS400
5
4
R250
1 2 3 4 4 5 6
R271
100
R251
68K
100
C254
R261 IC256
0.1
R270
1K
RN4911
68K
R262
R263
R266
68K 68K
56K DIGITAL
C255
0.1
TRANSISTOR
R267
10K
R269
30K
11
MD-SR60
J701
OPTICAL/
LINE IN
7
TP706 VCC
9
TP708 Vout
8
GND
TP707
6 N.C.
10K TP701
1
TP702
L
2
TP703
R
3
TP704 GND
4
L704
5
Q721 TP705
2SD1979S
3.9V
R725
100
C725
3.3/10
J702
MIC IN
R724
6.8K
L714
TP714
4
L713
TP713
2
L712
TP712
3
TP711
1
C724
0.001
L711
TP726
6
5
2
4
3
1
7
8
J703
REMOTE CONTROL
/HEADPHONES
J801
DC IN
L800
1
TP801
N.C.
2
TP802
3
L801
BATTERY
TERMINAL,+
BATTERY
TERMINAL,-
12