Service manual

MD-MT15/15C/15H/15W/161E/18H
– 16 –
• The numbers 1 to 18 are waveform numbers shown in page 22.
A
B
C
D
E
F
G
H
1
23456
Figure 16 SCHEMATIC DIAGRAM (3/3)
• NOTES ON SCHEMATIC DIAGRAM can be found on page 11.
P14
P16
P15
TP064B
TP070B
TP086B
TP087B
TP088B
TP721B
L451
150mA
C776
1000P
L500 47µH
C452
1000P
L456
100mA
L452
100mA
TP729
L453
100mA
TP500
C504 3.3/10
C503 3.3/10
C511 1
C500
10/6.3
C508
1
C762
2.2
C761 2.2
R500
4.7
C507 10/6.3
C505 1000P
C506 1000P
IC501
AD/DA
CONVERTER
AK4519VF
9
8
7
6
5
4 3 2 1
R501
470
C509
2.2
R502
470
C510
2.2
C501 0.0022/50
C502 0.0022/50
C773 0.22
C774
1
IC771
2.5V REGULATOR
62 GR2522
5
4 3
2
1
R710
56
SW401
EJECT
4
3
2
1
SW403
DISC LID
OPEN
4
3
2
1
L771
100µH
C771 47/6.3
TP082
TP089
TP087
TP085
TP084
TP083
TP080
TP079
TP078
TP086
TP093
TP092
TP091
TP090
TP073
TP063
TP064
TP065
TP066
TP067
TP068
TP069
TP070
TP062
TP061
TP077
TP076
TP075
TP074
TP072
TP071
CN702
9
8
7
6
5
4
3
2
1
TP088
C723
1000P
R767 1K
TP721
C712
100P
(CH)
TP703
Q711
RN1444 A
TP714
C731
0.22
C711
100P
(CH)
R727
8.2K
TP722
R726
39K
R728
1K
J703 HEADPHONES
8
7
6
5
4
3
2
1
C726 3.3/10
C725 3.3/10
R723
6.8K
R724
6.8K
L751
22uH
C765 0.22
TP723
R769 15K
R770 15K
R717
1K
R768 1K
TP705
C701 10/6.3
L752
22uH
IC701
AUDIO
AMP.
IR3R54N
9
8
7
6
5
4 3
2
1
R763
68
C752 0.082
R713
10K
TP708
C735
1000P
C713
1
C703 0.01
C757 0.68
R725
100
R764 68
TP728
C758 3.3/10
C755
0.01
C753 1
R715
100K
TP724
Q721
2SC4213 B
TP726
C766
0.22
TP709
TP725
R716
100K
TP701
C715
0.1
C760 0.027
TP702
TP707
C722
3.3/10
R754
270K
R757 27K
R720
8.2K
R719
8.2K
R712
5.6K
R711
5.6K
C754 1
R729
2.7K
R730
2.7K
L714
100mA
C759 0.027
TP704
J701
OPTICAL/
LINE IN
9
8
7
6
5
4
3
2
1
TP727
C714 1
L454
100mA
C756 0.68
C720
1000P
R701
100
R762
4.3K
R761
4.3K
R703 120K
J702
MICIN
4
3
2
1
L704
100mA
L703
100mA
D492 15AZ7.5Y
R765
D494
15AZ7.5Y
L712
100mA
R492 1K
L702
100mA
C751 0.082
R766
R714
10K
C491
0.1
R753 120K
C721
3.3/10
C702 10/6.3
R756 27K
TP711
TP713
C724
1000P
TP712
L711
100mA
L713
100mA
R702 100
C734
0.1
C733
0.1
L719
0.47uH
C719
10/10
IC703 AUDIO AMP. IR3R54N
9
8
7
6
5
4
3 2 1
R467 18K
Q461
2SC4738 GR
R806 1K
R279
100
R277 39K
C827 22/6.3
F871
T0.5A L 63V
R460 68K
C876 1
R833
47
C834
0.1
D831 1SS372
C831
0.1
C832
0.1
D803 1SS382
REVERSE
CONNECTION
4
3 2
1
R802
1K
TP483
TP489
TP488
TP486
TP487
TP482
TP481
C481
1
C482
1
CN482
9
8
7
6
5
4
3
2
1
IC808 CHARGING CIRCUIT
HN1C01FU
6
5
4
3
2
1
R278 2.2K
R853
100
C258
0.0047
R254
2.2K
Q874
RN1113
C877 1
C866
1
R852
47K
R851
10K
C851
150P
(CH)
C852
1
IC851
2.35V
REGULATOR
TC7S14FU
5
4
3
2
1
Q255
RN1113
IC807
RN4904
6
5
4 3
2
1
R276
3.3K
R265
22K
R275
56K
Q251
RN1113
R263
100K
R274
75K
C256
0.1
R267
75K
R264
18K
R266 100K
R256 18K
R258 180K
R260 3.3M
R273 56K
Q254
RN1113
C250 0.1
R253 75K
R252 150K
C871
0.47
TP786
TP788
TP789
TP787
TP785
TP783
TP780
TP779
TP793
TP792
TP791
TP790
TP761
TP775
TP774
TP771
TP770
TP769
TP768
TP767
TP765
TP764
TP763
CN701
9
8
7
6
5
4
3
2
1
TP782
TP777
R871 10K
IC872
S80813LN
4
3 2
1
IC871
S8324A28
5
4 3
2
1
L871
47µH
D812
SB10015C
IC803
FDT439N
CHARGING
CIRCUIT
TP809
R257
100K
R458
56K
R457
18K
R456
8.2K
R455
5.6K
R453
18K
R452
8.2K
R451
5.6K
TP460
CN451
9
8
7
6
5
4
3
2
1
TP453
TP452
TP451
TP461
TP454
TP455
TP456
TP457
TP458
TP459
TP462
TP463
J801
DC IN
3
2
1
TP802
TP801
L887 TIP IMPEDER
L888
TIP IMPEDER
R815
56K
IC802
FDC634P
6
5
4
3 2 1
R816
24K
C801 0.1
TP800
R808
5.6K
IC801 HN1C01FU
6
5
4 3
2
1
D800
1SS360
R807 680
D802
015Z5.1Y
R800 22K
R801 2.2K
C800
1
R809 2.2K
TP805
D801 SB10015C
C805 100/6.3
C806
3.3
TP803
TP804
R804
1.0A
Q253
RN1113
TP808
D861
EP10LA03
C863
1
C865 1
L862
100µH
C869 47/6.3
R250 1
R251 1
IC806
NDC631N
6
5
4 3
2
1
R259
82K
Q252
2SC4738GR
R268
2.2K
C255
0.1
C254 0.1
R255 0.2M
R262
24K
R261
270K
C253 0.1
IC805 NJM022V
8
7
6
5
4 3 2 1
R271
1K
R269
100
R270 100
R465
100K
D871
EP10LA03
C875 0.1
C874 15/10
C841
10/6.3
IC841
2.35V REGULATOR
XC62HS02
5
4 3
2
1
IC702
4.5V REGULATOR
62GR4522
5
4 3
2
1
L822 10µH
C826
1
R878 100K
Q873
NDS332P
D822
1SS389
R831
100K
C829 0.01
C823
390P
L821
4.7µH
R823
100K
R828
220K
R824
15K
C825 4P(CH)
R829 33K
C828 1
IC821
DC/DC
CONVERTER
IR3M09N
9
8
7
6
5
4
3
2
1
R827 300K
R826
10K
R821 100K
C830 1000P
R832 10M
C822
56P(CH)
C824
560P
D821
EC30LA02
C821 220/4
C810 0.33
R811 180K
R810
180K
IC822
CPH3403
TP811
VCC11
VCCVG
DSPRST
DSPSTB
DSPSCK
DSPDAT
VCCPOWER
VCC4.5
RPLAY
RESET
PBMUTE
BEEP
RCAULT
AUSCLK
AUDATA
PBAULT
INPGCK
INPGIN
MCPGIN
ELON
RKEY
EMPH0
VCC12
VCC3
Y
2
E
C
T
OP
A
Y
Y
1
VCC2
VCC1
VCC4
GND1
VCC2.7X
VCC13
VCC2.7
MICOM2.35V
PCNT1
PLVDCI
PLVDRY
DC JACK
VCC
GND
OUT
VDD
VSS
O - +
+ - O
V-
V+
G
D D
D
S
S
PCNT1
OSCOUT
OSCIN
EAIN+
DB
EAIN-
VREF
OSC
ROSC
STATE
PWM
VCC
OUT
GND
EAOUT
RDATA
EMPH0
RESET
ELON
RDATA
RPLAY
RKEY
PBMUTE
AUDATA
PBAULT
BEEP
RCAULT
AUSCLK
RESET
MCPGIN
INPGCK
INPGIN
EMPH0
RKEY RPLAY
MCPGIN
INPGIN
INPGCK
PBMUTE RCAULT BEEP PBAULT AUDATA AUSCLK
AUDIO
PWB-A2
VB
VCML
VCMR
VRAD VRDA
AINR
AINL
VA
AGND
LRCK
SCLK
SDTI
SDTO MCLK
DEM0 DEM1
VD
DGND
PWDA PWAD
CMODE
AOUTL AOUTR VCOM
Vout
GND
VCC
GND
R
L
PLAY
KEY
R-ch
L-ch
R-ch
L-ch
R-ch
L-ch
VEE
VCC
DGND
ROUT
LOUT
RIHP
LIHP
AGND
RI LI
VEE
LI
RI
AGND
LIHP
RIHP
DGND
VCC
LOUT
ROUT
LCD ASS'Y
LCD
DRIVER
LCD
GND
P-MODE
ENTER
DISPLY
VOL DOWN
VOL UP
BASS
EDIT
REC
SKIP DOWN
SKIP UP
STOP
PLAY
+B
+B
+B
+B
+B
33 33
1
1
FLAT CABLE
(243)
BATTERY
TERMINAL
SW801
Ni-MH
BATTERY
DETECTION
D
G
S
3
2
1
+B
6 7 8
15
3
2
1
2
1
3
IC805,IC806,IC807
CHARGING CIRCUIT
2
3
1
!
3
2
1
G
D
S
+B
S
G
D
9
8
7
6
5
4
3
2
1
KEY SWITCH
FLEXIBLE
PWB ASS'Y
1
2
3
RIPPLE
FILTER
IC801
2.8V UP CONVERTER
FET IC
SW801
IC802: IC802
OVER VOLTAGE REVERSE
CONNECTION PROTECTION
CIRCUIT
2.8V UP CONVERTER
IC501
IC702
IC808
IC821
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
10
11
12
10
11
12
13 14 15 16 17 18 19 20 21 22 23
24
11
12
13
14
9
8
7
6
5
4
3
2
1
11
12
13
14
10
11 12
13 14 15 16 17 18 19 20 21 22 23
24
10
11
12
13
14
15
16 17 18
19
20 21
22 23
24
R765:R766
MD-MT15H/
15W/161E/18H
18
MD-MT15/15C
8.2