Sharp MD-MT866H Service Manual

– 31 –
MD-MT866H/MD-MT866W
7
8 9 10 11 12
Figure 31 SCHEMATIC DIAGRAM (2/2)
5
4
1
2
3
7 6 5 4 3 2 1
4 3
2 1
14
13
12
11
10
9
8
7
6
5
4
3
2
1
5
4
3
2
1
3
2
1
6
5
4 3
2
1
6
5
4
3
2
1
5
4 3
2
1
6
5
4
3
2
1
6
5
4 3
2
1 4
3
2
1
6
5
4 3
2
1
6
5
4 3
2
1
6
5
4 3
2
1
4
3
2
1
8
7
6
5
4
3
2
1
5
4 3
2
1
5
4 3
2
1
5
4 3
2
1
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
5
4 3
2
1
13 14 15 16 17 18 19 20 21 22 23 24
12 11 10
9 8 7 6 5 4 3 2 1
9
8 7 6 5 4 3 2 1
9
8
7
6
5
4
3
2
1
4
3
2
1
8
7
6
5
4
3
2
1
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
13 14 15 16 17 18 19 20 21 22 23 24
12 11 10
9 8 7 6 5 4 3 2 1
DCEXT
_DCIN
PLVDCI
STOP
OPEN
VCC2R5V
PBAULT
STOP
ELON
PCNT2
PCNT3
PLVDCI
STDCK
BATON
DCON
DCNT1
PCNT3
PCNT2
PLVDRY
CHGCNT
EMPH0
INPGCK
PLVDRY
BATON
STDCK
HREC
RCAULT AUDATA AUSCLK
DFCK
RDATA
RPLAY RKEY
RDATA
AURESET
XRT
FOK
HKEY1
HKEY2
LDVAR
TEMP
RKEY
BCLK
DINT
DIN
LRCK
EMPH1
ADPON
DAPON
OPTCNT
ADDATA
DADATA
PBMUTE BEEP
VCCMICOM
VSS
VDD
OUT
+
–
AINR
AINL
LRCK
SCLK
SDTI
SDTO
MCLK
DEM0 DEM1
VDD
VSS
PWDA PWAD
AOUTL AOUTR
VCOM
OUT
VDD
VSS
D
D
S1
S1
S2
S2
G2
Vout
GND
VCC
GND
R
L
R-CH
L-CH
R-CH
L-CH
VCC
GND
A10
L-CH
R-CH
KEY
PLAY
GND
I/O4
I/O3
CAS
OE
A8
A7
A6
A5
A4
VCC
A3
A2
A1
A0
A9
RAS
WE
I/O2
I/O1
GND
VCC
LCD UNIT
LCD PWB-B
EO
GND
VCC
ROSC
OSC
EIN
EIP
OUT
BUF
Q R RSFF S
CMP
CTRL
VREF
ERRAMP
STAND
BY
VCC
GND
ATT
LIN
LLPFO
L– L+
R–
RLPFO
RIN
LHPVEE
LHPVCC
DAT CLK LAT
RHPVEE
RHPVCC
HP
BEEP
LPF
ATT
AMPuGAIN SEL.
AMPuGAIN SEL.
LOGIC
BIAS
VEE
VCC
DGND
ROUT
LOUT
RIHP
LIHP
AGND
RI
EO
GND
VCC
ROSC
OSC
EIN
EIP
OUT
BUF
Q R RSFF S
CMP
CTRL
VREF
ERRAMP
STAND
BY
G1
LI
R+
LPF
MCPGIN
INPGIN
SENSE
HKEY1
HKEY2
HPLAY
HREC
DSPDAT
DSPSCK
DSPSTB
1
4 3
2 1
10 11 12 13 14 15 16
1 2 3
6 5 4
+B
+B
+B
+B
+B
+B
+B
+B
+B
5786
N.C.
14
5
4
3
2
1
N.C.
3
TP405
C130
0.1
R406
100K
TP406
C401
0.1
IC404
N7SZ86P5
GATE IC
R405
10K
3
K
R424
22K
R425
22K
D461
RB731U
R465
100K
D462
RB521S30
R466
560K
2
K
C202
47/6.3
L202
1
0µH
IC202
IX2824AF
16M BIT D-RAM
C503
3.3/10
VCCADDA
TP500
R502
470
C509
1
C510
1
R501
470
C511
0.1
C500
10/6.3
IC501
AK4551VT
AD/DA
CONVERTER
C502
0.0022
C501
0.0022
C506
0.001
C505
0.001
R200
100K
C210
0.1
C200
1
IC200
62GR2522
2.5U
REGULATOR
C856
150P
(CH)
R831
180K
C774
1
C773
0.22
C851
3.3
C852
22/6.3
C859
1
L851
10µH
C775
1
C863
1
C862
1
D861
F10J2E
D862
F10J2E
C776
1
D772
F10J2E
D771
F10J2E
IC871
TC7S86FU
EXCLUSIVE
OR GATE
IC851
C858
1
D851
F10J2E
D852
F10J2E
R824
10K
IC852
C857
33P
(CH)
R855
180K
R857
560K
R853
270K
IC822
C827
56P
(CH)
C826
100P
(CH)
R826
3.9M
R825
390K
R832
180K
C839
0.33
R854
10K
R871
10K
C832
0.1
C860
1
C836
0.47
C837
1
C850
0.1
C843
0.22
C842
33/6.3
C822
22/6.3
C823
220/4
C821
3.3
C828 1
C825
1
D822
HRB0103B
D821
D1FH3
IC821
CPH3403
N-ch MOS FET
IC873
62GR4522
4.5U REGULATER
L821
10µH
R833
47
D832
HRB0103B
C833
0.1
C834
0.1
D831
HRB0103B
C848
1
R841
100K
C844
10/6.3
IC842
XC62HS02
POWER
SUPPLY
MICROCOMPUTER
C830
1
R827
270K
R823
270K
C838
0.1
C840
220/4
R256
100K
R257
1M
R822
100K
Q821
HN1C01FU
R821
2.2K
C253
0.01
R259
2.2K
R807
100K
R809
47K
R810
22K
Q805
2SA1832 GR
R808
560K
R829
100K
R254
1M
Q254
2SA1832 GR
R255
560K
R258
330K
R278
22
R277
2.2K
R274
56K
C273
0.1
C274
0.1
R276
120K
R253
33K
C252
0.1
Q251
2SA17457
R252
560K
Q253
RN4904
R812
100K
R813
2.2K
R816
100K
Q807
HN1C01 FU
C881
0.027
R881
18K
R882
10K
C292
0.01
D801
RB521S30
R495
1K
R496
22
C493
0.47
F841
0.4A,
DC 60V
R828
2.2K
R802
100K
Q802
FDN339 N
Q806
HN1C01 FU
R282
47K
Q825
DTC144 EE
R817
100K
IC271
75S54FU
OP AMP.
C272
0.1
R275
15K
R272
470K
C271
0.1
R273
47K
Q801
RN4904
TP806
IC801
S80814LN
RESET
R805
1M
R804
330K
Q803
2SA17457
R803
1K
R801
47K
Q804
HN1C01 FU
R281
1K
R291
2.2K
C291
0.1
R292
100K
R261
1M
R263
100K
R264
100
R262
330K
Q261
HN1C01
FU
R814
27K
R815
100K
R806
1M
R271
470K
R251
22
C251
0.1
IC251
S80808LN
RESET
Q252
FTD2017
C817
0.1
R818
47K
C841
1
L841
4.7µH
TP842
Q493
2SA1832 GR
C721
3.3/10
C723
0.001
C724
0.001
C722
3.3/10
R729
4.7K
R730
4.7K
C731
0.22
C765
0.22
R766
15
R765
15
D495
MA8075 M
D496
MA8075 M
C492
1
L491
33
D493 015Z5.1Y
D491 015Z5.1Y
C491
0.1
C451
0.022
R492
1K
D494
015AZ7.5Y
D492
015AZ7.5Y
J703
REMOTE
CONTROL
HEADPHONES
C771
47/6.3
C869
47/6.3
R850
100K
IC841
6372C281
2.8U UP
CONVERTER
D841
F10J2E
D842
HRB0103B
C847
1
C846
0.1
R844
47
C845
0.1
C876
1
R731
47K
R733
47K
R732
47K
C763
1
C764
1
R758
100
R761
390K
IC703
IR3R59N
AUDIO AMP.
C754
1
R762
100K
R754
180K
C753
1
R757
2.2K
C760
0.1
C758
1
R452
330
CN451
CA02
0.01
CA01
0.1
RA15
560K
RA14
18K
RA13
18K
SWA08 MODE
SWA04 EDIT
RA05
5.6K
RA01 5.6K
CNA01
RA12
33K
SWA05
VOLUME DOWN
SWA09
FAST
REVERSE
SWA12
STOP
SWA11
FAST
FORWARD
SWA07
VOLUME UP
SWA06 DISPLAY
RA04
56K
RA03
18K
RA02
8.2K
QA01
UN5210
SWA03
BASS
SWA13
OPEN
CK24 CK27 CK25 CK26 CK22 CK23 CK21
RA07
18K
RA06
8.2K
SWA10
ENTER
R710
47
R717
1K
R711
6.8K
R719
6.8K
R712
6.8K
R720
6.8K
C734
0.1
C733
0.1
R713
10K
C715
0.1
Q711
RN1444 A
C713
1
R718
1K
IC701
IR3R54N
AUDIO AMP.
C703 0.01
R702
100
R701
100
C701
10/6.3
R703
100K
C702
10/6.3
R714
10K
C712
100P
(CH)
C711
100P
(CH)
J701
OPTICAL/
LINE
C714
1
R715
100K
R716
100K
J702
MIC IN
C725
3.3/10
R724
6.8K
R725
100
C726
3.3/10
R726
39K
R727
8.2K
R728
1K
Q721
2SD1979 S
bv tB ^
R723
6.8K
LEDA01
CL190HBX
RA08
56K
IC841
IC801
EXTENSION
TERMINAL,+
GND
TERMINAL,–
BATTERY
TERMINAL,+
EXTENSION
BATTERY
TERMINAL,+
BATTERY
TERMINAL,–
IC822 IR3M14 DC/DC CONVERTER
IC851 CPH3403 N-ch MOS FET
IC852 IR3M14 DC/DC CONVERTER
IC771
IC771
62GR2322
2.3V REGULATOR
C766
0.22
CONTROL
TERMINAL
L702
L703
L704
L714
L713
L712
L711
L456
L452
L454
L453
L457
L458
SWA01 RECORD
SWA02 PLAY
TP772
TP771
TP703
TP705
TP701
TP704
TP702
TP707
TP708
TP706
TP712
TP711
TP713
TP714
TP726
TP725
TP724
TP723
TP722
TP721
TP728
TP727
TP841
TP804
TP803
TP805
T
P200
7
TP415
TP401
CK1
CK2
CK3
CK4
CK5
CK6
CK7
CK8
CK9
CK10
CK11
CK12
CK13
CK14
TP464
TP462
TP460
TP453
TP452
TP459
TP458
TP457
TP455
TP454
TP456
TP451
TP461
TP801
SW401
EJECT
+2.7V
+1.5V
–2.7V
+4.5V
–2.7V
+
2.7V
+2.7V
+4.5V
+2.7V

Sharp MD-MT866H Specifications

General

Brand	Sharp
Model	MD-MT866H
Category	Minidisc Recorder
Language	English