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MD-MT20H/16E
P26
P27
P28
TP451
TP452
TP453
TP454
TP455
TP456
A
TP457
TP458
R455
R456
R457
TP459
5.6K
8.2K
18K
R458
TP460
56K
TP461
R452
R453
TP462
8.2K
18K
TP463
C481
TP481
1
C482
TP482
1
TP483
DSPDAT
TP486
DSPSCK
TP487
DSPSTB
TP488
DSPRST
TP489
B
CN701
CN702
33
33
TP761
TP093
3 3
1
TP092
2
32
TP091
TP763
3
3 1
TP090
TP764
3 0
4
TP089
TP765
5
2
9
TP088
6
2 8
TP087
TP767
2 7
7
TP086
TP768
8
2
6
TP085
TP769
9
2 5
TP084
TP770
24
1 0
TP083
TP771
1 1
2
3
TP082
1 2
2 2
1 3
2 1
4 1
0 2
TP774
TP080
1 5
1 9
TP079
TP775
6 1
1
8
TP078
TP077
C
7 1
7 1
TP777
TP076
1
8
6 1
TP779
TP075
MPH0
EMPH0
1 9
1 5
TP780
TP074
SET
RESET
0 2
4 1
TP073
MUTE
PBMUTE
2 1
1 3
TP782
TP072
EP
BEEP
2 2
1 2
TP783
TP071
CAULT
RCAULT
2
3
1 1
TP070
TP070B
SCLK
AUSCLK
2 4
1 0
TP785
TP069
DATA
AUDATA
2 5
9
TP786
AULT
TP068
PBAULT
2
6
8
TP787
TP067
PGCK
INPGCK
2 7
7
TP788
TP066
PGIN
INPGIN
2 8
6
TP789
TP065
CPGIN
MCPGIN
2
9
5
TP790
TP064B
RKEY
3 0
EY
4
TP791
TP064
RPLAY
AY
3 1
3
TP063
TP792
RDATA
32
2
TP793
TP062
ON
3 3
1
ELON
1
TP061
1
D
E
Q461
2SC4738 GR
R465
100K
F
L862
100µH
C863
1
D861
EP10LA03
VCC2.7X
R279
100
IC808
G
1
6
2
5
3
4
IC808 CHARGING CIRCUIT
HN1C01FU
PCNT1
R810
R823
180K
100K
TP811
VCC2.7
C834
0.1
VCCVG
1
5
R833
IC702
2
47
3
4
C831
0.1
C832
866
0.1
H
IC702
4.5V REGULATOR
62GR4522
1
EDIT
1
1
DISPLY
2
2
SKIP DOWN
3
3
SKIP UP
4
4
REC
5
KEY SWITCH
5
P-MODE
6
6
FLEXIBLE
STOP
7
7
VOL DOWN
8
PWB ASS'Y
8
PLAY
9
9
BASS
1 0
1 0
VOL UP
1 1
1 1
ENTER
1 2
1 2
GND
1 3
1 3
CN451
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
CN482
6 7 8
TP088B
TP087B
TP086B
IC501
15
C500
10/6.3
C508
1
1
5
2
+B
3
4
IC771
2.5V REGULATOR
62 GR2522
+B
+B
IC802: IC802
OVER VOLTAGE REVERSE
CONNECTION PROTECTION
CIRCUIT
C806
3.3
IC851
2.35V
R853
REGULATOR
100
C851
TC7S14FU
150P
R851
(CH)
1
VCC
5
10K
C852
2
1
3
4
GND
R852
47K
C823
390P
OSCIN
IC821
1
1 2
VREF
OSCOUT
C824
DB
2
1 1
560P
R826
3
1 0
10K
EAIN+
ROSC
R824
15K
C822
EAIN-
STATE
4
9
56P(CH)
EAOUT
VCC
VCC13
5
8
R828
220K
6
7
GND
OUT
L821
D821
C826
4.7µH
EC30LA02
1
D
G
R831
100K
S
IC822
CPH3403
D822
1SS389
MICOM2.35V
2
3
Q874
1
RN1113
VCCPOWER
2
Figure 28 SCHEMATIC DIAGRAM (3/3)
• NOTES ON SCHEMATIC DIAGRAM can be found on page 23.
• The numbers
LCD ASS'Y
R501
C509
R720
R712
470
2.2
8.2K
5.6K
C510
2.2
R502
470
RI
IC501
AD/DA
CONVERTER
AK4519VF
R754
270K
C774
1
DGND
L771
100µH
C719
10/10
L719
0.47uH
R815
D802
56K
015Z5.1Y
TP800
R816
24K
VCC2
IC802
FDC634P
R802
1K
D812
S
SB10015C
D
Q253
IC803
RN1113
G
FDT439N
2
3
CHARGING
CIRCUIT
1
TP808
R259
Q252
82K
2SC4738GR
Q254
RN1113
3
R257
100K
R254
C258
2.2K
R261
0.0047
270K
R262
24K
IC821
DC/DC
CONVERTER
C255
IR3M09N
0.1
R271
FET IC
1K
R274
R268
Q873
75K
2.2K
NDS332P
R267
D
75K
3
S
R265
R269
22K
100
R264
G
18K
R275
56K
IC841
2.35V REGULATOR
L871
D871
XC62HS02
EP10LA03
47µH
4
3
VCC11
2
5
1
C841
1
5
10/6.3
VCC12
2
3
4
IC871
S8324A28
2.8V UP CONVERTER
3
4
– 28 –
1
to
18
are waveform numbers shown in page 34.
SW401
EJECT
2
3
R717
R711
1K
5.6K
R710
C734
56
0.1
C733
0.1
2
3
C713
Q711
1
LI
RN1444 A
1
L-ch
C712
100P
R-ch
(CH)
R715
IC701
INPGCK
100K
AUDIO
AMP.
IR3R54N
R716
INPGIN
100K
R714
10K
RIPPLE
FILTER
+B
R728
R727
R762
8.2K
1K
4.3K
MCPGIN
R761
R729
4.3K
2.7K
L-ch
C721
3.3/10
R-ch
R730
C722
C720
2.7K
3.3/10
1000P
C735
RI
LI
1000P
C452
1000P
D494
15AZ7.5Y
C755
C491
L751
0.01
R765
0.1
22uH
18
L-ch
R-ch
C766
L454
100mA
L752
0.22
R766
22uH
18
L888
TIP IMPEDER
DC JACK
VCC1
TP805
1
C800
J801
TP801
2
1
DC IN
TP802
R808
3
5.6K
IC801
D800
1
6
1SS360
2
5
3
4
1
4
2
3
SW801
D803 1SS382
Ni-MH
REVERSE
SW801
CONNECTION
BATTERY
DETECTION
R804
1.0A
VCC3
VCC4
TP803
TP804
2
1
D
S
1
6
D
D
2
5
G
S
3
4
IC806
NDC631N
R263
100K
Q251
2
RN1113
IC805,IC806,IC807
CHARGING CIRCUIT
R276
1
3.3K
Q255
1
6
RN1113
2
5
2
3
3
4
IC807
1
RN4904
!
F871
T0.5A L 63V
1
OUT
VSS
4
2
VDD
3
C871
IC872
0.47
S80813LN
2.8V UP CONVERTER
5
SW403
DISC LID
OPEN
1
1
2
3
4
J701
4
OPTICAL/
C715
LINE IN
0.1
7
TP707
VCC
9
TP709
Vout
8
TP708
GND
R713
6
10K
L702
TP701
1
100mA
TP702
L
2
L703
TP703
R
3
100mA
TP704
GND
4
L704
TP705
5
100mA
Q721
2SC4213 B
R725
100
R726
39K
R723
6.8K
R724
J702
L714
6.8K
TP714
MICIN
100mA
4
TP713
L713
2
100mA
TP712
3
L712
TP711
100mA
1
C724
1000P
L711
100mA
C776
1000P
L456
100mA
TP726
6
L452
TP725
5
100mA
TP729
TP722
2
L453
TP724
4
100mA
TP723
3
TP721
1
L451
TP721B
7
150mA
TP727
8
TP728
C723
1000P
AUDIO PWB-A2
BATTERY
TERMINAL
6
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