Sharp MD-MT80W(S) Service Manual page 33

DADATA
ADDATA
DFCK
BCLK
LRCK
ADPON
DAPON
OPTCNT
DIN
EMPH1
1 24
VCC GND
2 I/O1 23
I/O4
3 I/O2 22
I/O3
4 WE 21
CAS
5 RAS 20
OE
6 A9 19
A10 A8
7 18
8 A0 A7
17
9 A1 A6 16
10 A2 A5 15
11 A3 A4 14
12 VCC GND 13
C202
47/6.3
IC202
IX2735AF
16M BIT D-RAM
+B
VCC2R5V
+B
+B
REGULATOR
+2.7V
C206 1
2.0V
+B
TP418
SW401
EJECT
4
+B
3
2
1
PCNT1
R406 PCNT2
100K
TP406
R405
TP405
10K XRT
FOK
PCNT1
SENSE
PLVON
TP415
CHGON
TP401
LDVAR
C401 0.1 CHGCNT
HKEY2
HKEY1
C130
TEMP 0.1
PLVBAT
+B
+B
R423
22K
(1%)
DINT
AY RKEY
4 3
2
+B
5 1
IC873
62GR4522
1
4.5V
REGULATOR
4
HPLAY
PCNT2
HREC
PLVBAT
CHGON
D461
D467
RB731U RB521S30 PLVON
STOP
3 4 CHGCNT
2 5
1 6
+B
7
R455
R456
R457 R458
5.6K 8.2K
HKEY2 18K 56K
HREC
R451
5.6K
HKEY1
R452 R453
R454
8.2K 18K 56K
STOP
HPLAY
+2.7V +B
C500
C509
R501
10/6.3
2.2
470
C511
1
R502 470
C510 2.2
C502
0.0022
8 7 6 5 4 3 2 1
+B
+B
9
10 11 12 13 14 15 16
C505
0.001
C506
0.001
5 7 8 6
1 5
IC203
2
C774
62FP1602
3 4 1
C773
IC771
0.22
62GR2322
2.3V
1
REGULATOR
3
+B
2
L771
100µH
+B
–B
L862
100µH
+B
IC871
+B
TC7S86FU
EXCLUSIVE
OR GATE
1 VCC 5
2
D862
3 4
GND
F10J2E
L851
10µH
D851 D1FH3 +B
+B IC851
CPH3413
N-ch MOS FET
IC852
IR3M14N
R856 10M
R855 C857 DC/DC CONVERTER
R854
390K 18P(CH)
10K
ERRAMP GND
(1%)
5 4
C856 EO
R831
68P(CH)
EIN
6 3
180K R832
OUT
(1%)
180K(1%)
VCC
7 2
R853 STAND
EIP
BY
270K
8 1
ROSC CTRL
C827
R826
220P(CH)
10M
ERRAMP GND
5 4
EO
R824
R825
10K
EIN
300K(1%) 6 3
OUT
C826
100P(CH) 7 VCC 2
EIP
STAND
R827
BY
220K(1%) 8 1
ROSC CTRL
R823
IC822
270K
IR3M14N
+B
DC/DC CONVERTER
D831 D832
C838
HRB0103B HRB0103B
VG 0.1
+B
R833
47
+B
D821
D1FH3
+2R7
+B
L821
10µH
IC821
CPH3413
N-ch MOS FET
D822 D823
+B
F10J2E F10J2E
8 9
Figure 33 SCHEMATIC DIAGRAM (2/2)
TP451
TP452
TP453
TP454
TP455
TP456
TP457
TP458
TP459
TP460
TP461
TP462
TP463
CN451
C481
1
TP481
C482 TP482
1 TP483
+B
DSPDAT TP486
DSPSCK TP487
DSPSTB TP488
LCDRST TP489
CN482
+B
R720 6.8K
R719
6.8K
12 11 10 9 8 7 6 5 4 3 2 1
IC701
IR3R54N
AUDIO AMP.
13 14 15 16 17 18 19
C704 47/6.3
R702
–B
22
C702
10/6.3
C701
10/6.3
INPGCK
INPGIN
MCPGIN
–B
C762
R754 150K C758 2.2
C754
1
TP412
1
+B
R-CH
9 8 7 6 5 4 3 2 1
12 11 10
RHPVEE
BIAS AMP&GAIN SEL.
LOGIC
AMP&GAIN SEL.
LHPVEE
13 14 15 16 17 18 19 20 21 22 23 24
+B
R766 15
–B
C753
1
IC703
IR3R59N
AUDIO AMP.
+B
–B
+B
C876
1
DCVDD
+B
IC841
6372C281
2.8V UP
R816 1.5K
CONVERTER 2
D842
Q803
C845
HRB0103B
UN5213
0.1
VGBATT
R844 47
D841
F841
F10J2E
0.4A
+B
DC60V
1
5
2
IC841
3 4
R850
100K
+B +B
C848
R841
2SA17457
1
100K
R294 100K
R295 100K
IC253
RN4904
1
4 3
2
2
IC842
3
5 1
Q257
C844
2SA1832 GR
10/6.3
HN1C01FU
4 3
1
5 2
2
6 1
3
1
R279
100 IC259 2
HN1C01FU 3
+B
IC260
TP809 RN4904
R288
D281
1SS400 47K +B
NJM022V
OPE AMP.
–B
10
– 33 –
MD-MT80W/90W/90/90C
BASS
1 1
DISP
2 2
LCD UNIT
EDIT
3 3
MODE/CHRG
ASS'Y(222)
4 4
REC
5 5
ENTER/SYNC
6 6
:OFF/HOLD
7 7
PLAY/PUSE
8 8
9 9
VOL +
10 10
VOL –
11 11
12 12
GND
13 13
KEY SWITCH FLEXIBLE
PWB ASS'Y(221)
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
L710
R717
47
1K
R712 6.8K
R711 6.8K
Q711
C733 RN1444 A +B TP706
0.1 TP708
C713 C715
3
2 1 0.1 TP707
RI LI
R713
1
10K TP701
L-CH C712 L702 100mA TP702
100P (CH)
R-CH L703 100mA TP703
TP704
VCC R715 L704 100mA TP705
100K
20 21 22 23 24 R714
10K
C716
R703 R725
0.1
R716
100
100K
100K
C714 Q721
2SD1979 S
1
+B
R726
39K
R723 6.8K
R728 1K
C731
L714 100mA
R729
0.22
4.7K
C721 3.3/10 L-CH L713 100mA
L712 100mA
R-CH
C722
R730 C724
4.7K 3.3/10 0.001
L711 100mA
+B
L491 D494
33 MA8075M L456 100mA
TP729
R765
C491
R767
15
L-CH 0.1
L452
L454 100mA 150mA
L453 100mA
R768
C766
0.22
C765
0.22
R767,R768
4.7 ohms, RESISTOR : MT80W/90W
0 ohms, JUMPER : MT90/90C
R460
68K
Q801
R801 D801
R809
2SJ520 TL
1.1A F05J2L
L800
1
+B +B
IC802
TP805
R803
R811
HN1C01FU TP802
1.2K
1
R807 22K
3 2 1
1 6
R812
2
5
10K(1%)
3 4
R813
4 5
10K(1%)
R806
56K
1 1 OUT VSS 4
3
3
1
2 2 VDD 3
IC801
IC803
62RP2002
S80819LN
4 3
2.0V REGULATOR
5 2
RESET
6 1
IC809
R818
560K RN4904
C818 0.1
IC251
FTD2017
5 G2 G1 4
N-ch MOS FET
6 S2 S1 3
7 S2 S1 2
1
8 D D
+B
VCCBATT
IC892
R293
Q250
HN1C01FU
2.2K
3 4
2 5
1 6 R296
100K
R281
22K
6
5
1 OUT VSS 4
4
R292
100K
2 VDD 3
R291 100
IC257
S80808LN
IC258 C253
R254
R255
RESET
0.1
22K R257
4.7K
27K(1%)
C251 0.1
6
5
4 R253
8 7 6 5
3 2 1
39K(1%)
6 D251
1SS400
5
R251
4
R250 100
100 1 2 3 4 5
4 6
R271
C254 0.1
R261 68K(1%)
1K
R262
IC255
120K(1%)
R269
22K
(1%)
11
7
VCC
9
Vout
8
GND
6
1
L
2
R
3
GND
4
5
J701
OPTICAL
LINE IN
TP714
4
TP713
2
TP712
3
TP711
1
J702
MIC IN
TP726
6
TP725
5
TP722
2
TP724
4
TP723
3
TP721
1
TP727
7
TP728
8
J703
REMOTE
CONTROL/
HEADPHONES
TP801
1
2
3
J801
DC IN
R808
1(1%)
R810
1(1%)
BATTERY
TERMINAL
TP803
DC 1.2V
(NICKEL-METAL
HYDRIDE )
DC 1.5V
LR6(SIZE AA)
TP804
BATTERY
TERMINAL
12