![background image](http://html.mh-extra.com/html/onkyo/md-101a/md-101a_service-manual_1637336016.webp)
A
1
2
3
4
5
B
C
D
E
F
G
H
MD-101A
MD-101A
Q803
SPS-440-1-N
P906
P906A
P905
P905A
C214
104
D906
RS403M
F901
T2AL250V
P402
R917
1.5K
R744
470K
R915
33K
R916
33K
R825
33K
R230
100
R229
100
R220
27K
R219
27K
R745
0
R824
10K
Q805
TC7S00FU
5V
5
3
INA
2
INB
1
OUT
4
GND
GND
CHECK
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
Q802
TMP87PH47U
4
5
6
7
8
9
10
11
12
23
24
25
26
27
28
31
32
34
35
37
38
39
FL_CLK
42
FL_DATA
41
FL_STB
36
3
GND1 19
20
21
22
43
2
OSC1 15
OSC2 16
RESET14
S-CLK
1
SUB_ACK
29
SUB_BLK
33
SUB_DATA
44
SUB_STB
30
TEST[GND]13
VAREF18
VASS[GND] 17
VDD
40
NP
41
Q801
HCA-14SS02T
F1A
1
F1B
2
F1C
3
F2A
42
F2B
43
F2C
44
FL_BLK
36
FL_CLK
34
FL_DI
33
FL_DO
32
FL_STB
35
VDD1
37
VDD2
38
VSS1
39
VSS2
40
P402A
P001
P903A
P903
Q101
5
6
7
Q204
NJM4565M
5
6
7
Q203
NJM4565M
5
6
7
Q709
NJM4565M
3
2
1
Q101
NJM2100
3
8
2
4
1
Q204
NJM4565M
3
8
2
4
1
Q203
NJM4565M
3
8
2
4
1
Q709
5
8
6
4
7
C817
223
C816 223
C815 223
C203
101
P102A
P102
S809
S805
S814
S812
S811
S810
S813
S806
S808
S804
S803
S802
S801
S807
D801
SLR-332
C919
220/6.3
C910
100/6.3
C403
100/6.3
C805
100/6.3
C906
47/50
C907
4.7/50
C908
22/16
C105
100/6.3
C106
100/6.3
C104
22/50
C103
22/50
C211
47/50
C212
47/50
C922
104
C923
220/6.3
C920
10/16
C905
47/50
C915
470/16
C916
470/16
C707
1/50
C704
100/16
C705
100/16
C927 10/16
C925
10/16
C929
100/6.3
C913
22000/16
C914
2200/16
C917
470/6.3
C918
470/6.3
C213 473
C404 104
C806 223
C405
223
C814
104
C801
473
C802 102
C813
104
C812
104
C101 101
C102 101
C204 101
C206
822
C205
822
C207 822
C208 822
C210
102
C209
102
C701
473
C810
104
C809 104
C804
104
C811
104
C933 473
C710
473
C709
101
C711
473
C932 473
C402
104
C401
104
C901
C909
473
C708
223
C926 104
C706 223
C912 334
C911 334
C904
224
C951
473
C903 473
C702
473
C703
473
C807
104
C902
C930
104
C928 223
R908
1.5K
R830
1K
R728
10K
R913
120
(1/2W)
R914 120 (1/2W)
R721
470
R407
1K
R408
1K
R819
100
R722
470
R829
1K
R828
1K
R827
1K
R826
1K
R222
1.5K
R221
1.5K
R741
220K
R802
10K
R801
1K
R904 3.3K
R905
100
R906
100
R110
1.2K
R109
1.2K
R818
390
R817
470
R816
820
R815
1K
R814
1.8K
R105
390
(1/2W)
R106
390
(1/2W)
R108
1.8K
R107 1.8K
R103 22K
R104 22K
R102
18K
R101
18K
R742
330K
R218
100K
R217
100K
R204 27K
R203
27K
R202 27K
R201 27K
R205
470
R206
470
R207
1.2K
R208
1.2K
R209
1.5K
R210
1.5K
R211 100K
R212 100K
R225
2.2K
R226
2.2K
R214
470
R213
470
R215
2.2K
R216
2.2K
R228
470
R227
470
R813 10K
R812
3.9K
R810
1K
R809
820
R811
1.8K
R912
390
R805
100
R804
100
R803
100
R738
22K
R737
22K
R735
2.7K
R736
2.7K
R726 330K
R715
330
R713
330
R743
10K
R727
470
R404 100K
R403 100K
R401
100
R402
100
R808
470
R807
390
R820
470
R909 470
R910
10K
R739 4.7K
R740
22K
R730 470
R729
10K
R731
82K
R732
100
R406
470
R405
470
R707
1K
R703
1K
R705
1K
R706
1K
R704
1K
R822
470
R701
2.7K
R702
2.7K
R720 10K
R719 10K
R718 10K
R717 10K
R725 47K
R734 10K
R001 2.2K
R002 2.2K
R716 10K
R714
10K
R723 10K
R907
22K
R821
470
R712 1.8K
R711 1.8K
R710 1.8K
R708 1.8K
R709 1.8K
R724
100
P801A
P801B
D201
UDZS4.7B
D102
UDZ2.4B
D101
UDZ2.4B
D913
UDZS18B
D902
UDZS18B
D701
UDZS5.6B
D903
UDZS5.1B
D802
UDZS5.6B
T901
JL901B
JL901A
D904
D905
D914 1SS352
D706
1SS352
D910
D901
GP104003E
D911
1SS352
D912
GP104003E
D705
1SS352
D703
1SS352
D704
1SS352
D702
1SS352
Q904
2SB1068
Q901
KTD863
Q206
2SD655
Q205
2SD655
Q202
2SD655
Q201
2SD655
Q704
2SD655
Q703
2SD655
Q907
MPC29M33
G
I
O
Q902 MPC29M05
G I
O
Q905
MPC2905
G
I
O
Q906
MPC29M05
G
I
O
Q401
Q402
Vcc
GND
Q403
74HCU04
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Vcc
GND
Q702 74HCU04
1
2
3
4
5
6
7
8
9
10
11
12
13
72
50
48
Q701
UPD78F0058GC
5VE]
75
5VA]
7
AVSS[GND]
4
CHKSIG
44
FILAMENT
27
FLASH1
14
FLASH2
15
GND
1
GND10
31
GND11
32
GND13
34
GND14
35
GND15
37
GND16
38
GND17
39
GND18
40
GND19
45
GND2
5
GND20
46
GND21
47
GND22
GND23
52
GND24
53
GND25
54
GND26
55
GND27
56
GND28
57
GND29
58
GND3
16
GND30
59
GND32
65
GND34
78
GND35
79
GND36
80
GND4
17
GND5
18
GND7
28
GND8
29
GND9
30
IC[VPP]
71
JAPAN
42
K0
76
K1
77
LINEMUTE
49
MECLK
13
MECS
20
MEDA
11
MEMUTE
64
MERESET
19
METEST
41
NC2
22
NC4
24
NC5
25
NC6
26
SHUT DOWN
21
POFF
63
REMIN
61
REQ
62
RESET
60
ROTEN1
2
ROTEN2
3
SCHECK
43
STBYLED
36
SUB_ACK
66
SUB_CLK
10
SUB_DATA
9
SUB_RESET
8
SUB_STB
6
SYDA
12
SYSIN
51
SYSOUT
VDD0[+5VD]
74
VDD1[+5VB]
68
VSS0[GND34]
67
VSS1[GND12]
33
X1
70
X2
69
OPTOFF
23
XT1
73
XT2
P101
Q705
KRA107S
Q908
KRA107S
Q707
KRA107S
Q405
KRA107S
Q708
KRA107S
Q706
KRA107S
L902
L701
BL02RN2-R62
L903
L905
L904
Q711
BMR0101
OUT
VCC
P701
RI
X702
8.0MHZ
X701
5.0MHz
J1B
J2B
J1B
J2B
J1A
J2A
P901
P902
P902
P702
3.3V
5VA
5VB
AGND1
AGND2
AMUTE
CLK
DIN0
DIN1
DOUT
GND1
H+5V
HGND
LIN
LOUT
M+5VA
M+5VB
MDREQ
MGND1
MGND2
PDOWN
PWRCNT
RCREQ
RESET
RIN
ROUT
SDATAMD
SDATARC
SPL/XSPD
Q713
KRC107S
Q909
KRC107S
Q712
KRC104S
Q710
KRC107S
Q903
KRC107S
L901
+VDIS
KEY0
F1
F2
AC2
GND
AC1
KEY1
REMO
LIN
FLRESET
FLDATA
RIN
FLCLK
+VDISP
JOGB
LED
JOGA
5V
GND
FLCS
REMO
KEY1
F2
KEY0
F1
F2
F1
+VDISP
KEY0
FLCS
REMO
FLRESET
FLCLK
FLDATA
JOGB
LED
JOGA
KEY!
5V
5.6V
LOUT
REMO
ROUT
LIN
5VBK
RIN
5V
ROUT
LOUT
-B
FLASH0
FLASH1
RESET
IC
MUTE
PDOWN
MECS
MERESET
MECLK
SYSDA
MEDATA
+4.8
+0.26
+5.8
+5
+36
+36
+4.3
-9.5
+9.1
+3.3
+5.0
+5.1
+5.8
-11.0
+2.8
-2.8
+10.2
+42
+36
NC
DISPLAY
STANDBY/ON
INPUT
REC_MODE
CD_DUB
EDIT/NO
EJECT
YES
REC
FR
FF
/PAUSE
PLAY
STOP
5V
472M
103Z
MGR, MGT
MJJ
C901,C902
R745: MJJ only
MD MECHANISM
R718: MGR,MGT,
MDT only
or GP104003E
RL1N4003
D901,D906-D909
SOFT VERSION UP
for
MGT
MJJ,MGR,MDT
DIGITAL INPUT
OPTICAL
1
2
ANALOG
INPUT
OUTPUT
L
R
L
R
U5
NAETC-7302
NAETC-7302
AC OUTLET
AC OUTLET
U4
U4
NADG-7299
U3
AC IN
NAPS-7300
MJJ : 100V 50/60Hz
MGT,MGR : 230V 50/60Hzz
MDT : 120V 60Hz
MGT : Korean model
MDT : Taiwanese model
MGR : Chinese model
MJJ : Japan model
To P402A
MULTI JOG
+36
4.8
To P402
U1
NAAR-7298
NADIS-7301
STANDBY/ON
KMK-260EDN
DIN0
DIN1
OPT OFF
RI
POWER CONT
OPT OFF
[NOTES]
103M
MDT
SCHEMATIC DIAGRAMS
AC OUTLET PC BOARD
M A R K
B Y
T H E C O M P O N E N T S
I D E N T F I E D
A R E C R I T I C A L F O R S A F E T Y .
R E P L A C E O N L Y W I T H P A R T N U M B E R S P E C I F I E D .
.
. V O L T A G E ( M E A S U R E D W I T H V O L T M E T E R )
I S D C V O L T A G E . ( N O I N P U T S I G N A L )
. E L E C T R O L Y T I C C A P A C I T O R S (
) A R E I N
F / W V .
. A L L C A P A C I T O R S A R E I N p F / 5 0 W V U N L E S S
O T H E R W I S E N O T E D .
E X ) 0 3 0 3 p F 3 3 0 3 3 p F 3 3 1 3 3 0 p F
3 3 3 0 . 0 3 3 u F
u
A L L R E S I S T O R S A R E I N O H M S 1 / 4 W A T T S
U N L E S S O T H E R W I S E N O T E D .
. T H E T H I C K L I N E S O N P C B O A R D A R E T H E P R I N T I N G S I D E O F T H E P A R T S .
E X )
P R I N T I N G S I D E
C I R C U I T I S S U B J E C T T O C H A N G E F O R I M P R O V E M E N T .
.
.
N O T E
DISPLAY PC BOARD
MICROPROCESSOR
PC BOARD
POWER TRANSFORMER
PC BOARD
POWER SUPPLY PC BOARD